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Merge pull request 'FFmpeg is gone from the client — native decode M0–M10' (#85) from worktree-native-decode-m0 into main

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Reviewed-on: unom/punktfunk#85
This commit is contained in:
enricobuehler
2026-08-07 09:21:45 +00:00
parent 3608de25ed bbbcf321e5
commit b245cb6b29
268 changed files with 120530 additions and 16633 deletions
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.gitea/workflows/deb.yml
+8 -3
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@@ -119,10 +119,15 @@ jobs:
run: |
apt-get update
# python3 is used by scripts/ci/gitea-release.sh for the stable-tag release attach.
# libvulkan-dev: /usr/include/vulkan/vulkan.h for the client's pf-ffvk bindgen
# (FFmpeg's hwcontext_vulkan.h includes it).
# No libvulkan-dev: nothing here compiles or links against Vulkan (ash dlopens
# libvulkan and pf-vkdecode binds nothing at build time), so neither the compile nor
# dpkg-shlibdeps — which resolves DT_NEEDED sonames only — ever asks for it. The
# client's `Depends: libvulkan1` is added by hand in packaging/debian/build-client-deb.sh
# precisely because a dlopen is invisible to shlibdeps.
# No libav*-dev: the client links no FFmpeg since M10 (§6 of
# design/client-native-decode.md).
apt-get install -y --no-install-recommends dpkg-dev python3 \
libgtk-4-dev libadwaita-1-dev libsdl3-dev libvulkan-dev
libgtk-4-dev libadwaita-1-dev libsdl3-dev
# Share ci.yml's cache keys so the release build reuses its registry + target artifacts.
- name: Cache keys
.gitea/workflows/flatpak.yml
+11 -4
View File
@@ -34,7 +34,10 @@ on:
# The flatpak is the CLIENT — only rebuild when the client/core/manifest change, not on every
# design/host push (this is a heavy flatpak-builder run). Tags (v*, the client release) build too.
# The bundle ships BOTH client binaries (shell + Vulkan session), so every crate in either
# binary's dependency closure must be listed here.
# binary's dependency closure must be listed here — including the native decode rungs, or a
# commit that only touches the decoder never rebuilds the bundle and the Deck canary quietly
# stops tracking it. pf-dxvadec is absent on purpose: it is `cfg(windows)` in pf-client-core
# and never enters the Linux closure (windows.yml / windows-msix.yml carry it instead).
paths:
- 'clients/linux/**'
- 'clients/session/**'
@@ -42,6 +45,9 @@ on:
- 'crates/pf-client-core/**'
- 'crates/pf-presenter/**'
- 'crates/pf-console-ui/**'
- 'crates/pf-bitstream/**'
- 'crates/pf-vkdecode/**'
- 'crates/pf-vaadec/**'
- 'packaging/flatpak/**'
- 'Cargo.lock'
- '.gitea/workflows/flatpak.yml'
@@ -128,7 +134,7 @@ jobs:
# authselect trigger fires — so this line alone was never the fix for the failures
# below. See the retry.sh bump for the real cause.
sed -i 's/resolve \[!UNAVAIL=return\] //' /etc/nsswitch.conf
# Flathub provides the GNOME runtime/SDK + the rust-stable + ffmpeg-full extensions.
# Flathub provides the GNOME runtime/SDK + the rust-stable and llvm20 extensions.
#
# ROOT CAUSE (confirmed 2026-07-11 by watching a live run on home-runner-1): this is
# NOT a deterministic nsswitch/DNS-config bug. gitea-runner-fleet on home-runner-1 is
@@ -147,7 +153,7 @@ jobs:
git config --global --add safe.directory "$PWD"
# This job was the fleet's single heaviest network consumer: every run re-downloaded
# the GNOME runtime + SDK + llvm/rust/ffmpeg extensions (multi-GB from Flathub) and
# the GNOME runtime + SDK + llvm/rust extensions (multi-GB from Flathub) and
# every crate source. Both live in well-defined directories, both are idempotently
# verified/extended by the steps below, and the central cache server restores them
# at LAN speed — so cache them. Keyed on what actually pins them: the manifest tree
@@ -251,7 +257,8 @@ jobs:
# or TCP dial costs a backoff-retry instead of the whole (long) compile:
# 1) --install-deps-only pulls everything the manifest declares from Flathub: the
# GNOME 50 runtime/SDK + the rust-stable (//25.08, rustc 1.96) and llvm20 SDK
# extensions, plus the runtime's auto codecs-extra (HEVC libavcodec).
# extensions. (No codec extension: the client links no FFmpeg — see the
# manifest header.)
# 2) --download-only fetches every source (all crates in cargo-sources.json) into
# the .flatpak-builder state dir. Both are resumable/idempotent, so re-running
# after a partial failure is safe and cheap.
.gitea/workflows/rpm.yml
+6 -3
View File
@@ -96,9 +96,12 @@ jobs:
- name: Prep
run: |
git config --global --add safe.directory "$PWD"
# vulkan-headers: the client's pf-ffvk crate runs bindgen over FFmpeg's
# libavutil/hwcontext_vulkan.h (#include <vulkan/vulkan.h>).
dnf -y install gtk4-devel libadwaita-devel SDL3-devel vulkan-headers
# No vulkan-headers: nothing in the workspace compiles against the system Vulkan headers.
# The host's Vulkan encode hand-rolls its structs, pyrowave-sys bindgens its own vendored
# copy, and both host and client reach Vulkan through ash, which dlopens the loader. (The
# HDR gamescope leg further down does need them, and pulls them itself via `dnf builddep
# gamescope`.) Matches packaging/rpm/punktfunk.spec, which dropped its BuildRequires too.
dnf -y install gtk4-devel libadwaita-devel SDL3-devel
# sysext build (packaging/bazzite/build-sysext.sh): squashfs + SELinux labeling.
dnf -y install squashfs-tools cpio libselinux-utils selinux-policy-targeted
# Fedora's own gamescope, for its RUNTIME libraries only — never shipped, never run. The
.gitea/workflows/windows-host.yml
+4 -2
View File
@@ -141,8 +141,10 @@ jobs:
# observed on a clean build on this very runner (2026-07-17). No-op for compliant
# projects (libvpl-sys pins 3.13+).
"CMAKE_POLICY_VERSION_MINIMUM=3.5" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
# FFMPEG_DIR: the same BtbN lgpl-shared x64 tree the Windows CLIENT links against (provisioned
# by scripts/ci/provision-windows-punktfunk-extras.ps1). The host's AMD/Intel AMF/QSV encode backend
# FFMPEG_DIR: the BtbN lgpl-shared x64 tree, provisioned by
# scripts/ci/provision-windows-punktfunk-extras.ps1. The CLIENT used to link it too; since M10
# it links no libav* at all (windows.yml sets no FFMPEG_DIR), so this tree is the HOST's alone
# and the provisioning step keeps fetching it for that reason. The host's AMD/Intel AMF/QSV encode backend
# (--features amf-qsv) link-imports avcodec/avutil/swscale from it; pack-host-installer.ps1
# then bundles its bin\*.dll into the installer. LIBCLANG_PATH is in the runner daemon env.
if (-not $env:FFMPEG_DIR) {
.gitea/workflows/windows-msix.yml
+13 -12
View File
@@ -1,13 +1,17 @@
# Build the punktfunk Windows client as signed MSIX packages (x64 + ARM64) and publish them to
# Gitea's generic package registry, so Windows boxes can download + install a real package (Start
# tile, clean install/uninstall) instead of a loose exe. Runs on a self-hosted windows-amd64
# runner (host mode; the MSVC/WinUI toolchain comes from unom/infra's windows-runner/, FFmpeg
# runner (host mode; the MSVC/WinUI toolchain comes from unom/infra's windows-runner/, the rest
# self-provisions via the "Ensure Windows toolchain" step below, same as windows.yml) — the
# Windows SDK's makeappx/signtool are baked into the runner's daemon env.
#
# Both arches come off the ONE x64 runner: x86_64 natively, aarch64 cross-compiled (the x64 MSVC
# toolset has the ARM64 cross compiler; the matrix points FFMPEG_DIR at the ARM64 FFmpeg tree). See
# windows.yml for the cross-build rationale + the BOM/MAX_PATH runner gotchas.
# toolset has the ARM64 cross compiler). See windows.yml for the cross-build rationale + the
# BOM/MAX_PATH runner gotchas.
#
# NO FFmpeg since M10 (design/client-native-decode.md §6): the client decodes natively, so the
# package carries no libav* DLLs and this workflow sets no FFMPEG_DIR. The host installer
# (windows-host.yml) is unchanged.
#
# Registry (public, unom org): https://git.unom.io/unom/-/packages (generic group)
# Packaging internals: clients/windows/packaging/README.md.
@@ -49,7 +53,9 @@ on:
- 'crates/pf-client-core/**'
- 'crates/pf-presenter/**'
- 'crates/pf-console-ui/**'
- 'crates/pf-ffvk/**'
- 'crates/pf-bitstream/**'
- 'crates/pf-vkdecode/**'
- 'crates/pf-dxvadec/**'
- 'Cargo.lock'
- 'Cargo.toml'
- '.gitea/workflows/windows-msix.yml'
@@ -80,12 +86,10 @@ jobs:
include:
- arch: x64
target: x86_64-pc-windows-msvc
ffmpeg: C:\Users\Public\ffmpeg
td: C:\t
session_flags: ''
- arch: arm64
target: aarch64-pc-windows-msvc
ffmpeg: C:\Users\Public\ffmpeg-arm64
td: C:\t-a64
# No skia-binaries prebuilt for aarch64-pc-windows-msvc: the session ships
# without the Skia console UI on ARM64 (streaming unaffected) — flip when
@@ -94,7 +98,7 @@ jobs:
steps:
- uses: actions/checkout@v4
- name: Ensure Windows toolchain (WDK, FFmpeg, Inno Setup, ARM64 target)
- name: Ensure Windows toolchain (WDK, Inno Setup, ARM64 target)
shell: pwsh
run: ./scripts/ci/ensure-windows-toolchain.ps1
@@ -102,12 +106,9 @@ jobs:
shell: pwsh
run: |
# CARGO_TARGET_DIR (per-arch, short) dodges the MAX_PATH wall in the CMake-from-source
# crates (see windows.yml). FFMPEG_DIR selects the arch's import libs + is read by
# pack-msix.ps1 for the runtime DLLs. All via GITHUB_ENV.
# crates (see windows.yml). No FFMPEG_DIR: nothing in this package links libav* (M10),
# and pack-msix.ps1 no longer copies runtime DLLs from one.
"CARGO_TARGET_DIR=${{ matrix.td }}" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
"FFMPEG_DIR=${{ matrix.ffmpeg }}" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
# pf-ffvk's bindgen needs Vulkan headers (arch-independent; provisioned alongside FFmpeg).
"PF_FFVK_VULKAN_INCLUDE=C:\Users\Public\vulkan-headers\include" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
rustup target add ${{ matrix.target }}
$pf = & "$env:GITHUB_WORKSPACE/scripts/ci/pf-version.ps1" # single source of truth: base is one minor ahead of the latest stable tag
$parts = if ($env:GITHUB_REF -like 'refs/tags/v*') {
.gitea/workflows/windows.yml
+32 -31
View File
@@ -1,26 +1,29 @@
# Windows client CI — runs on a self-hosted windows-amd64 runner (host mode; the generic runner +
# toolchain come from unom/infra's windows-runner/; punktfunk's own extras - FFmpeg,
# Vulkan-Headers, WDK, Inno Setup, the ARM64 rustup target - self-provision via the "Ensure
# Windows toolchain" step below, a fast no-op once already present, so any runner with that label
# works with no manual dispatch step first). Build + clippy + fmt + test BOTH client binaries:
# the WinUI 3 shell (windows-reactor + WASAPI + SDL3) and the punktfunk-session Vulkan client
# (pf-presenter/pf-client-core/pf-console-ui/pf-ffvk — every stream runs in it, spawned by the
# toolchain come from unom/infra's windows-runner/; punktfunk's own extras - WDK, Inno Setup,
# the ARM64 rustup target - self-provision via the "Ensure Windows toolchain" step below, a fast
# no-op once already present, so any runner with that label works with no manual dispatch step
# first). Build + clippy + fmt + test BOTH client binaries: the WinUI 3 shell
# (windows-reactor + WASAPI + SDL3) and the punktfunk-session Vulkan client
# (pf-presenter/pf-client-core/pf-console-ui — every stream runs in it, spawned by the
# shell). ARM64 note: rust-skia publishes no aarch64-pc-windows-msvc prebuilt binaries, so the
# session builds --no-default-features there (no Skia console UI; streaming is unaffected) —
# flip when skia-binaries adds the target.
#
# NO FFmpeg here since M10 (design/client-native-decode.md §6): the client decodes with
# pf-vkdecode / pf-dxvadec / openh264+rav1d and links no libav* at all, so this workflow sets
# no FFMPEG_DIR, no PF_FFVK_VULKAN_INCLUDE and prepends nothing to PATH. The provisioning
# script still fetches the FFmpeg trees because the HOST keeps FFmpeg — windows-host.yml's
# `amf-qsv` leg link-imports them.
#
# Two architectures from ONE x64 runner: x86_64-pc-windows-msvc natively and
# aarch64-pc-windows-msvc by cross-compiling. The x64 MSVC toolset ships an ARM64 cross compiler
# (VC\Tools\MSVC\<ver>\bin\Hostx64\arm64\cl.exe) and aarch64-pc-windows-msvc is a tier-2 Rust
# target with host tools, so no ARM64 runner is needed — the cc/cmake crates pick the ARM64
# compiler from the target triple (SDL3 + libopus build-from-source cross-compile fine). The one
# arch-specific external dep is FFmpeg's import libs: the runner keeps an x64 tree at
# C:\Users\Public\ffmpeg and an ARM64 tree at C:\Users\Public\ffmpeg-arm64 (both FFmpeg 7.x /
# avcodec-61); the matrix points FFMPEG_DIR at the right one. aarch64 can't *run* on the x64 host,
# so fmt + test run only for x64.
# thing the aarch64 build can't do is *run* on the x64 host, so fmt + test run only for x64.
#
# The MSVC/WinUI/FFmpeg toolchain (cargo/rustup on ASCII paths, NASM, CMake, LLVM, the x64 FFmpeg,
# CARGO_HOME, CMAKE_POLICY_VERSION_MINIMUM, …) is baked into the runner's daemon env. Per-checkout
# The MSVC/WinUI toolchain (cargo/rustup on ASCII paths, NASM, CMake, LLVM, CARGO_HOME,
# CMAKE_POLICY_VERSION_MINIMUM, …) is baked into the runner's daemon env. Per-checkout
# / per-arch vars are set in a step:
# - CARGO_TARGET_DIR=C:\t… the runner's host workdir is buried deep under
# C:\Windows\System32\config\systemprofile\.cache\act\<hash>\hostexecutor\,
@@ -29,7 +32,6 @@
# can't create its .tlog (DirectoryNotFoundException -> MSB6003). A short
# root keeps every nested path well under the limit (per-arch so the two
# matrix legs don't share a target dir).
# - FFMPEG_DIR per-arch FFmpeg import libs (x64 vs arm64 tree).
#
# Steps use `shell: pwsh` (PowerShell 7) deliberately: Windows PowerShell 5.1's
# `Out-File -Encoding utf8` prepends a UTF-8 BOM that corrupts the first GITHUB_ENV line (that
@@ -55,7 +57,9 @@ on:
- 'crates/pf-client-core/**'
- 'crates/pf-presenter/**'
- 'crates/pf-console-ui/**'
- 'crates/pf-ffvk/**'
- 'crates/pf-bitstream/**'
- 'crates/pf-vkdecode/**'
- 'crates/pf-dxvadec/**'
- 'Cargo.lock'
- 'Cargo.toml'
- '.gitea/workflows/windows.yml'
@@ -67,7 +71,9 @@ on:
- 'crates/pf-client-core/**'
- 'crates/pf-presenter/**'
- 'crates/pf-console-ui/**'
- 'crates/pf-ffvk/**'
- 'crates/pf-bitstream/**'
- 'crates/pf-vkdecode/**'
- 'crates/pf-dxvadec/**'
- 'Cargo.lock'
- 'Cargo.toml'
- '.gitea/workflows/windows.yml'
@@ -110,7 +116,7 @@ jobs:
steps:
- uses: actions/checkout@v4
- name: Ensure Windows toolchain (WDK, FFmpeg, Inno Setup, ARM64 target)
- name: Ensure Windows toolchain (WDK, Inno Setup, ARM64 target)
shell: pwsh
run: ./scripts/ci/ensure-windows-toolchain.ps1
@@ -120,21 +126,13 @@ jobs:
# Per-arch short target root (dodges MAX_PATH; keeps the two legs from sharing target\).
$td = if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { 'C:\t-a64' } else { 'C:\t' }
"CARGO_TARGET_DIR=$td" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
# Per-arch FFmpeg import libs (provision-windows-punktfunk-extras.ps1 fetches both).
$ff = if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { 'C:\Users\Public\ffmpeg-arm64' } else { 'C:\Users\Public\ffmpeg' }
"FFMPEG_DIR=$ff" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
# pf-ffvk's bindgen needs Vulkan headers (arch-independent; provisioned alongside FFmpeg).
"PF_FFVK_VULKAN_INCLUDE=C:\Users\Public\vulkan-headers\include" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
# $ff\bin on PATH too (not just FFMPEG_DIR, which only satisfies the linker): the test
# binary needs the actual DLLs to load at runtime. Set here rather than relying on the
# daemon's own env (project-env.ps1) - on a freshly cloned/registered runner the daemon
# starts before this job's "Ensure Windows toolchain" step ever writes that file, so its
# PATH doesn't include this yet on a first run (confirmed live: STATUS_DLL_NOT_FOUND).
"$ff\bin" | Out-File -FilePath $env:GITHUB_PATH -Append -Encoding utf8
# No FFMPEG_DIR / PF_FFVK_VULKAN_INCLUDE / PATH prepend: the client links no libav*
# since M10 (see this file's header), so nothing here needs import libs or runtime DLLs.
# The HOST still does — windows-host.yml sets them for its amf-qsv leg.
rustup target add ${{ matrix.target }}
rustc --version
cargo --version
Write-Output "target ${{ matrix.target }} target-dir $td ffmpeg $ff"
Write-Output "target ${{ matrix.target }} target-dir $td"
# Both client binaries. ARM64: no skia-binaries prebuilt for the target, so the session
# drops its `ui` feature there (pf-console-ui excluded; --no-default-features is a no-op
@@ -152,7 +150,10 @@ jobs:
- name: Clippy (-D warnings)
shell: pwsh
run: |
$pkgs = @('-p','punktfunk-client-windows','-p','punktfunk-client-session','-p','punktfunk-cli','-p','pf-client-core','-p','pf-presenter','-p','pf-ffvk')
# Every crate in the `paths:` trigger above is named here: `cargo clippy -p X` BUILDS a
# dependency but only LINTS the packages it is given, so a decode crate that starts the
# run but is missing from this list would be gated by nothing.
$pkgs = @('-p','punktfunk-client-windows','-p','punktfunk-client-session','-p','punktfunk-cli','-p','pf-client-core','-p','pf-presenter','-p','pf-bitstream','-p','pf-vkdecode','-p','pf-dxvadec')
$sf = @()
if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { $sf = @('--no-default-features') } else { $pkgs += @('-p','pf-console-ui') }
cargo clippy @pkgs --all-targets @sf --target ${{ matrix.target }} -- -D warnings
@@ -160,9 +161,9 @@ jobs:
- name: Rustfmt check
if: matrix.target == 'x86_64-pc-windows-msvc'
shell: pwsh
run: cargo fmt -p punktfunk-client-windows -p punktfunk-client-session -p punktfunk-cli -p pf-client-core -p pf-presenter -p pf-console-ui -p pf-ffvk -- --check
run: cargo fmt -p punktfunk-client-windows -p punktfunk-client-session -p punktfunk-cli -p pf-client-core -p pf-presenter -p pf-console-ui -p pf-dxvadec -- --check
- name: Test
if: matrix.target == 'x86_64-pc-windows-msvc'
shell: pwsh
run: cargo test -p punktfunk-client-windows -p punktfunk-client-session -p punktfunk-cli -p pf-client-core -p pf-presenter -p pf-console-ui -p pf-ffvk --target ${{ matrix.target }}
run: cargo test -p punktfunk-client-windows -p punktfunk-client-session -p punktfunk-cli -p pf-client-core -p pf-presenter -p pf-console-ui -p pf-dxvadec --target ${{ matrix.target }}
CONTRIBUTING.md
+5 -3
View File
@@ -46,9 +46,11 @@ sudo apt install build-essential clang libclang-dev pkg-config cmake \
libvulkan-dev
```
(The last two groups are the Linux client shell and `pf-ffvk`; skip them only if you never build
those crates. `scripts/bootstrap-ubuntu.sh` sets up an Ubuntu **capture-test host** — NVIDIA, Sway,
PipeWire — and is not a substitute for the list above.)
(The last two groups are the Linux client shell and the Vulkan session presenter; skip them only
if you never build those crates. `libvulkan-dev` is for the LOADER's pkg-config/soname — ash
dlopens it, and the client links no FFmpeg at all, so no libav*-dev appears here.
`scripts/bootstrap-ubuntu.sh` sets up an Ubuntu **capture-test host** — NVIDIA, Sway, PipeWire —
and is not a substitute for the list above.)
## Before you push
Cargo.lock
Generated
+307 -41
View File
@@ -65,7 +65,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05b07e8e73d720a1f2e4b6014766e6039fd2e96a4fa44e2a78d0e1fa2ff49826"
dependencies = [
"android_log-sys",
"env_filter",
"env_filter 0.1.4",
"log",
]
@@ -204,6 +204,12 @@ dependencies = [
"syn",
]
[[package]]
name = "assert_matches"
version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"
[[package]]
name = "async-broadcast"
version = "0.7.2"
@@ -341,6 +347,26 @@ version = "1.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
[[package]]
name = "atomig"
version = "0.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cd0f41f4bb89f5c6450325e283fb78c4a3d042181b54f3855ee2f872919f9863"
dependencies = [
"atomig-macro",
]
[[package]]
name = "atomig-macro"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "49c98dba06b920588de7d63f6acc23f1e6a9fade5fd6198e564506334fb5a4f5"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "audiopus_sys"
version = "0.2.2"
@@ -446,7 +472,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "993776b509cfb49c750f11b8f07a46fa23e0a1386ffc01fb1e7d343efc387895"
dependencies = [
"annotate-snippets",
"bitflags",
"bitflags 2.13.0",
"cexpr",
"clang-sys",
"itertools 0.13.0",
@@ -475,6 +501,12 @@ version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5e764a1d40d510daf35e07be9eb06e75770908c27d411ee6c92109c9840eaaf7"
[[package]]
name = "bitflags"
version = "1.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
[[package]]
name = "bitflags"
version = "2.13.0"
@@ -538,6 +570,12 @@ dependencies = [
"syn",
]
[[package]]
name = "byteorder"
version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
[[package]]
name = "byteorder-lite"
version = "0.1.0"
@@ -556,7 +594,7 @@ version = "0.22.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5cc8d9aa793480744cd9a0524fef1a2e197d9eaa0f739cde19d16aba530dcb95"
dependencies = [
"bitflags",
"bitflags 2.13.0",
"cairo-sys-rs",
"glib",
"libc",
@@ -885,6 +923,15 @@ dependencies = [
"itertools 0.10.5",
]
[[package]]
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dependencies = [
"env_logger",
"log",
"serde_json",
]
[[package]]
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@@ -991,6 +1038,37 @@ version = "2.11.0"
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[[package]]
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"defmt-macros",
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"proc-macro2",
"quote",
"syn",
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[[package]]
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@@ -1101,6 +1179,29 @@ dependencies = [
"regex",
]
[[package]]
name = "env_filter"
version = "2.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "900d271a03799a1ee8d1ca9b19893b48ca674a9284fefcfb85f05e74ed314217"
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"log",
"regex",
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"env_filter 2.0.0",
"jiff",
"log",
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[[package]]
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dependencies = [
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"bitflags 2.13.0",
"ffmpeg-sys-next",
"libc",
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@@ -1584,7 +1685,7 @@ version = "0.22.7"
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dependencies = [
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"bitflags 2.13.0",
"futures-channel",
"futures-core",
"futures-executor",
@@ -1777,7 +1878,7 @@ checksum = "6ea2d84b969582b4b1864a92dc5d27cd2b77b622a8d79306834f1be5ba20d84b"
dependencies = [
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"crunchy",
"zerocopy",
"zerocopy 0.8.52",
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[[package]]
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"jiff-core",
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"serde_core",
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"proc-macro2",
"quote",
"syn",
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[[package]]
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version = "0.21.1"
@@ -2291,7 +2428,7 @@ version = "0.9.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b6b8cfa2a7656627b4c92c6b9ef929433acd673d5ab3708cda1b18478ac00df4"
dependencies = [
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"bitflags 2.13.0",
"cc",
"convert_case",
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@@ -2486,6 +2623,7 @@ version = "0.3.2"
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"log",
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@@ -2493,7 +2631,7 @@ dependencies = [
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dependencies = [
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"bitflags 2.13.0",
"jni-sys 0.3.1",
"log",
"ndk-sys",
@@ -2517,7 +2655,7 @@ version = "0.29.0"
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dependencies = [
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"cfg-if",
"cfg_aliases",
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@@ -2530,7 +2668,7 @@ version = "0.30.1"
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dependencies = [
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@@ -2848,6 +2986,14 @@ version = "2.3.2"
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dependencies = [
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"tracing",
]
[[package]]
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version = "0.24.0"
@@ -2876,19 +3022,26 @@ dependencies = [
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"ash",
"async-channel",
"ffmpeg-next",
"libc",
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"mdns-sd",
"openh264",
"opus",
"pf-ffvk",
"pf-bitstream",
"pf-dxvadec",
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"pf-vkdecode",
"pipewire",
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"rand 0.9.4",
"rav1d",
"rustls",
"sdl3",
"serde",
"serde_json",
"sha2",
"tracing",
"ureq",
"wasapi",
@@ -2935,6 +3088,16 @@ dependencies = [
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]
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version = "0.24.0"
dependencies = [
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"pf-bitstream",
"pf-vkdecode",
"tracing",
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[[package]]
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version = "0.24.0"
@@ -2959,15 +3122,6 @@ dependencies = [
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version = "0.24.0"
dependencies = [
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"pkg-config",
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[[package]]
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version = "0.24.0"
@@ -3042,7 +3196,6 @@ dependencies = [
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"async-channel",
"pf-client-core",
"pf-ffvk",
"punktfunk-core",
"sdl3",
"tracing",
@@ -3069,13 +3222,22 @@ dependencies = [
"ureq",
]
[[package]]
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version = "0.24.0"
dependencies = [
"cros-codecs",
"pf-bitstream",
"pf-vkdecode",
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dependencies = [
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"ashpd",
"bitflags",
"bitflags 2.13.0",
"bytemuck",
"futures-util",
"hex",
@@ -3102,6 +3264,17 @@ dependencies = [
"x11rb",
]
[[package]]
name = "pf-vkdecode"
version = "0.24.0"
dependencies = [
"ash",
"cros-codecs",
"pf-bitstream",
"sha2",
"tracing",
]
[[package]]
name = "pf-win-display"
version = "0.24.0"
@@ -3153,7 +3326,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9688b89abf11d756499f7c6190711d6dbe5a3acdb30c8fbf001d6596d06a8d44"
dependencies = [
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"libc",
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@@ -3207,7 +3380,7 @@ version = "0.18.1"
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dependencies = [
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"crc32fast",
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@@ -3251,6 +3424,21 @@ dependencies = [
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]
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
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@@ -3272,7 +3460,7 @@ version = "0.2.21"
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@@ -3311,7 +3499,7 @@ checksum = "4b45fcc2344c680f5025fe57779faef368840d0bd1f42f216291f0dc4ace4744"
dependencies = [
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"bitflags",
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"num-traits",
"rand 0.9.4",
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@@ -3388,7 +3576,6 @@ name = "punktfunk-client-windows"
version = "0.24.0"
dependencies = [
"async-channel",
"ffmpeg-next",
"mdns-sd",
"pf-client-core",
"punktfunk-core",
@@ -3431,7 +3618,7 @@ dependencies = [
"tokio",
"tracing",
"windows-sys 0.59.0",
"zerocopy",
"zerocopy 0.8.52",
"zeroize",
]
@@ -3726,6 +3913,36 @@ dependencies = [
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]
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version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@@ -3777,7 +3994,7 @@ version = "0.5.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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@@ -3934,7 +4151,7 @@ version = "0.40.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "11438310b19e3109b6446c33d1ed5e889428cf2e278407bc7896bc4aaea43323"
dependencies = [
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"hashlink",
@@ -3973,7 +4190,7 @@ version = "1.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
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"errno",
"libc",
"linux-raw-sys",
@@ -4127,7 +4344,7 @@ version = "0.18.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc",
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"sdl3-mixer-sys",
@@ -4222,7 +4439,7 @@ version = "3.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc",
@@ -4428,7 +4645,7 @@ version = "0.87.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"skia-bindings",
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@@ -4521,6 +4738,28 @@ version = "0.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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]
[[package]]
name = "strum_macros"
version = "0.26.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
dependencies = [
"heck",
"proc-macro2",
"quote",
"rustversion",
"syn",
]
[[package]]
name = "subtle"
version = "2.6.1"
@@ -4724,6 +4963,12 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
[[package]]
name = "to_method"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "tokio"
version = "1.52.3"
@@ -5301,7 +5546,7 @@ version = "0.31.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "645c7c96bb74690c3189b5c9cb4ca1627062bb23693a4fad9d8c3de958260144"
dependencies = [
"bitflags",
"bitflags 2.13.0",
"rustix",
"wayland-backend",
"wayland-scanner",
@@ -5313,7 +5558,7 @@ version = "0.32.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "23d0c813de3daa2ed6520af85a3bd49b0e722a3078506899aa9686fea58dc4b6"
dependencies = [
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"bitflags 2.13.0",
"wayland-backend",
"wayland-client",
"wayland-scanner",
@@ -5325,7 +5570,7 @@ version = "0.3.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6e9567599ef23e09b8dad6e429e5738d4509dfc46b3b21f32841a304d16b29c8"
dependencies = [
"bitflags",
"bitflags 2.13.0",
"wayland-backend",
"wayland-client",
"wayland-protocols",
@@ -5338,7 +5583,7 @@ version = "0.3.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "eb04e52f7836d7c7976c78ca0250d61e33873c34156a2a1fc9474828ec268234"
dependencies = [
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"wayland-backend",
"wayland-client",
"wayland-protocols",
@@ -5690,7 +5935,7 @@ version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d24d6bcc7f734a4091ecf8d7a64c5f7d7066f45585c1861eba06449909609c8a"
dependencies = [
"bitflags",
"bitflags 2.13.0",
"widestring",
"windows-sys 0.52.0",
]
@@ -6182,13 +6427,34 @@ dependencies = [
"zvariant",
]
[[package]]
name = "zerocopy"
version = "0.7.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
dependencies = [
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]
[[package]]
name = "zerocopy"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"zerocopy-derive 0.8.52",
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[[package]]
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version = "0.7.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
dependencies = [
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"quote",
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]
[[package]]
Cargo.toml
+5 -1
View File
@@ -5,11 +5,12 @@ members = [
"crates/punktfunk-host",
"crates/punktfunk-host/vendor/usbip-sim",
"crates/punktfunk-tray",
"crates/pf-bitstream",
"crates/pf-bitstream/vendor/cros-codecs",
"crates/pf-client-core",
"crates/pf-clipboard",
"crates/pf-presenter",
"crates/pf-console-ui",
"crates/pf-ffvk",
"crates/pf-driver-proto",
"crates/pf-paths",
"crates/pf-update",
@@ -23,6 +24,9 @@ members = [
"crates/pf-capture",
"crates/pf-inject",
"crates/pf-vdisplay",
"crates/pf-vkdecode",
"crates/pf-dxvadec",
"crates/pf-vaadec",
"crates/pyrowave-sys",
"crates/libvpl-sys",
"clients/probe",
README.md
+12 -6
View File
@@ -84,7 +84,9 @@ mid-stream mode renegotiation and a wall-clock skew handshake so latency stays v
Both run from **one process**: bare `punktfunk-host serve` is the **secure native-only default**
(`punktfunk/1` + the management API/web console), and `serve --gamestream` additionally enables the
GameStream/Moonlight-compat planes (opt-in, trusted-LAN only — GameStream has inherent on-path
weaknesses). The host is managed through a REST API and web console. Builds against FFmpeg 7 or 8.
weaknesses). The host is managed through a REST API and web console. The **host** builds against
FFmpeg 7 or 8; the **clients** link no FFmpeg at all — they decode natively (Vulkan Video, DXVA,
VAAPI, VideoToolbox, MediaCodec, openh264 + rav1d).
What works where: **[the support matrix](https://docs.punktfunk.unom.io/docs/support-matrix)** ·
where it's heading: **[the roadmap](https://docs.punktfunk.unom.io/docs/roadmap)**.
@@ -187,10 +189,13 @@ and the [docs site](https://docs.punktfunk.unom.io).
crates/
punktfunk-core/ protocol · FEC · pacing · crypto · QUIC control plane — the C ABI (lib + cdylib + staticlib)
punktfunk-host/ the host (Linux + Windows): virtual displays · capture · encode · input · GameStream · punktfunk/1 · mgmt
pf-client-core/ shared client plumbing (Linux + Windows): session pump · FFmpeg decode · audio · SDL3 gamepads · trust · discovery
pf-client-core/ shared client plumbing (Linux + Windows): session pump · native decode ladder · audio · SDL3 gamepads · trust · discovery
pf-presenter/ Vulkan session presenter: SDL3 window · ash swapchain · frame present · input capture
pf-console-ui/ Skia console UI for the session client: gamepad shell · stats OSD · pairing · on-screen keyboard
pf-ffvk/ FFmpeg Vulkan hwcontext bindings (AVVkFrame) for Vulkan Video decode on the presenter's device
pf-bitstream/ H.264 / H.265 / AV1 bitstream parsing + per-AU decode plans — the one parser every native rung submits from
pf-vkdecode/ native Vulkan Video decode (H.264 / H.265 / AV1) on the presenter's own device
pf-dxvadec/ native DXVA buffer layouts + AuPlan → picparams conversion (the Windows D3D11VA rung)
pf-vaadec/ native libva buffer layouts + AuPlan → picparams conversion (the Linux VAAPI rung)
pf-driver-proto/ host ↔ pf-vdisplay driver contract: control IOCTLs + IDD-push frame transport (no_std)
punktfunk-tray/ host tray icon (Windows notification area / Linux StatusNotifierItem)
clients/
@@ -245,9 +250,10 @@ additional terms or conditions. See [CONTRIBUTING.md](CONTRIBUTING.md).
Punktfunk's own source is MIT/Apache-2.0. Shipped binaries additionally link third-party components
under their own (permissive) licenses — see [`THIRD-PARTY-NOTICES.txt`](THIRD-PARTY-NOTICES.txt)
(regenerate with `scripts/gen-third-party-notices.sh`). The Windows host and client builds also
bundle FFmpeg under the **LGPL v2.1+** (dynamically linked, replaceable DLLs; the license text and
notice ship in the installed `licenses/` folder).
(regenerate with `scripts/gen-third-party-notices.sh`). The Windows **host** build also
bundles FFmpeg under the **LGPL v2.1+** (dynamically linked, replaceable DLLs; the license text and
notice ship in the installed `licenses/` folder). The **clients** bundle no FFmpeg — they link
none.
### Trademarks
THIRD-PARTY-NOTICES.txt
+565 -222
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about.toml
+14 -2
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@@ -4,10 +4,22 @@
# cargo about generate about.hbs > THIRD-PARTY-NOTICES.txt # (or use scripts/gen-third-party-notices.sh)
#
# `accepted` is the allow-list of SPDX licenses permitted in the dependency tree. CI fails if a crate
# carries anything not listed here — which is exactly the regression guard we want against a copyleft
# dependency silently entering the linked set. All entries
# carries anything not listed here — the regression guard against a copyleft dependency silently
# entering the linked set. All entries
# below are permissive / attribution-only; deliberately NO GPL/LGPL/AGPL/MPL-link/SSPL/EPL.
#
# ⚠ KNOW THE LIMIT OF THIS GATE. cargo-about walks the CARGO graph, so it sees CRATES. A native
# library linked through a permissively-licensed `-sys` crate is INVISIBLE to it, licence and all.
# FFmpeg is precisely that shape: `ffmpeg-sys-next` is WTFPL and passes cleanly, while the LGPL
# libavcodec/libavutil/swscale it link-imports — and which the Windows host installer bundles as
# DLLs — never appear in the harvest at all. This gate did not catch FFmpeg entering the tree and
# would not catch the next such library. Copyleft arriving as C behind a -sys crate is a REVIEW
# question, not a CI one; the LGPL obligations we do carry are discharged by hand (the notice files
# and the replaceable-DLL linkage, see packaging/windows/punktfunk-host.iss).
#
# Since M10 this is a HOST-only concern: the client links no FFmpeg, so for every client artifact
# the crate graph and the linked set finally coincide and the gate means what it appears to mean.
#
# The dependency-free fallback is scripts/gen-third-party-notices.py (reads the cargo registry cache),
# which is what produced the committed baseline when cargo-about is unavailable offline.
ci/arch-ci.Dockerfile
+5
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@@ -15,6 +15,11 @@ FROM docker.io/library/archlinux:base-devel
# One transaction: the main build/runtime deps (first list) + the gamescope companion's
# deps (second list) — both copied verbatim from what arch.yml installed in-job, where
# they now no-op as `--needed` guards.
# vulkan-headers rides the first list only because arch.yml's copy does; the package it actually
# serves is the gamescope companion (packaging/gamescope/PKGBUILD makedepends). punktfunk itself
# needs no system Vulkan headers — pyrowave-sys bindgens its own vendored copy and ash dlopens the
# loader — but arch.yml builds gamescope with `makepkg -d`, so an absent makedepend would not be
# reported as a missing dependency, only as a compile failure. Keep it.
RUN pacman -Syu --noconfirm --needed \
git nodejs rust clang cmake ninja nasm pkgconf python vulkan-headers \
gtk4 libadwaita sdl3 ffmpeg pipewire wayland libxkbcommon opus libei \
ci/fedora-rpm.Dockerfile
+4 -2
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@@ -27,8 +27,10 @@ RUN dnf -y install \
mesa-libGL-devel mesa-libgbm-devel \
# punktfunk-client link deps (GTK4 shell + SDL3 gamepads)
gtk4-devel libadwaita-devel SDL3-devel \
# pf-ffvk bindgen over libavutil/hwcontext_vulkan.h needs <vulkan/vulkan.h>
vulkan-headers \
# No vulkan-headers: nothing in the workspace compiles against the system Vulkan headers
# (pyrowave-sys bindgens its own vendored copy; host and client both reach Vulkan through
# ash, which dlopens the loader), and packaging/rpm/punktfunk.spec BuildRequires none.
# rpm.yml's HDR gamescope leg needs them and pulls them with `dnf builddep gamescope`.
&& dnf clean all
# bun — both the BUILD tool and the RUNTIME for the punktfunk-web console (`bun run build` -> the
ci/rust-ci-arm64cross.Dockerfile
+4 -3
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@@ -29,15 +29,16 @@ RUN sed -i 's|^Types: deb$|Types: deb\nArchitectures: amd64|' /etc/apt/sources.l
&& dpkg --add-architecture arm64
# 2. The cross toolchain + every arm64 dev lib the client links. Mirrors the client half of
# rust-ci.Dockerfile's list (FFmpeg, PipeWire, Opus, SDL3, GTK4/libadwaita, xkbcommon,
# Vulkan headers for pf-ffvk's bindgen over hwcontext_vulkan.h).
# rust-ci.Dockerfile's list (FFmpeg, PipeWire, Opus, SDL3, GTK4/libadwaita, xkbcommon). No
# Vulkan dev package: nothing compiles or links against Vulkan — ash dlopens the loader, and
# pyrowave-sys bindgens its own vendored headers.
RUN apt-get update && apt-get install -y --no-install-recommends \
crossbuild-essential-arm64 \
libavcodec-dev:arm64 libavformat-dev:arm64 libavutil-dev:arm64 libswscale-dev:arm64 \
libavfilter-dev:arm64 libavdevice-dev:arm64 \
libpipewire-0.3-dev:arm64 libopus-dev:arm64 \
libsdl3-dev:arm64 libgtk-4-dev:arm64 libadwaita-1-dev:arm64 \
libwayland-dev:arm64 libxkbcommon-dev:arm64 libvulkan-dev:arm64 \
libwayland-dev:arm64 libxkbcommon-dev:arm64 \
&& rm -rf /var/lib/apt/lists/*
# 3. The Rust target — installed against the toolchain the WORKSPACE pins, not the image's
ci/rust-ci.Dockerfile
+3 -2
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@@ -22,8 +22,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
libgl-dev libegl-dev libgbm-dev \
# punktfunk-client-linux (GTK4/libadwaita shell, SDL3 gamepads)
libgtk-4-dev libadwaita-1-dev libsdl3-dev \
# pf-ffvk (bindgen over libavutil/hwcontext_vulkan.h needs <vulkan/vulkan.h>)
libvulkan-dev \
# No libvulkan-dev: nothing in the workspace compiles or links against Vulkan (pyrowave-sys
# bindgens its own vendored headers, and both host and client reach Vulkan through ash, which
# dlopens the loader), so neither the build nor deb.yml's dpkg-shlibdeps ever asks for it.
&& rm -rf /var/lib/apt/lists/*
# bun — builds the punktfunk-web console in deb.yml (which runs the web build in THIS image).
clients/android/app/src/main/assets/THIRD-PARTY-NOTICES.txt
+682 -6152
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clients/apple/Sources/PunktfunkClient/Settings/AcknowledgementsView.swift
+2 -2
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@@ -58,8 +58,8 @@ struct AcknowledgementsView: View {
.font(.geist(Self.headlineFont, .semibold, relativeTo: .headline))
Text(
"Punktfunk uses the open-source components below, each under its own license. "
+ "On some platforms FFmpeg is additionally bundled under the LGPL v2.1+ "
+ "(dynamically linked, replaceable)."
+ "Video decoding uses the system's own VideoToolbox framework, so nothing "
+ "is bundled for it — and no Punktfunk client bundles FFmpeg on any platform."
)
.font(.geist(Self.captionFont, relativeTo: .caption))
.foregroundStyle(.secondary)
clients/apple/Sources/PunktfunkKit/Resources/THIRD-PARTY-NOTICES.txt
+467 -6983
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clients/linux/Cargo.toml
+1 -1
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@@ -1,6 +1,6 @@
[package]
name = "punktfunk-client-linux"
description = "Native Linux punktfunk/1 client — GTK4/libadwaita shell, FFmpeg decode, PipeWire audio, SDL3 gamepads"
description = "Native Linux punktfunk/1 client — GTK4/libadwaita shell, PipeWire audio, SDL3 gamepads; streaming runs in the spawned punktfunk-session binary"
version.workspace = true
edition.workspace = true
rust-version.workspace = true
clients/linux/README.md
+13 -8
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@@ -12,9 +12,11 @@ Built in Rust end to end (no C ABI): the shell shares its plumbing with the sess
## Features
- **Zero-copy hardware decode** — the session presenter decodes via **Vulkan Video** on every GPU
vendor (including NVIDIA), falling back to FFmpeg VAAPI → DRM-PRIME dmabuf and then software when
Vulkan Video is unavailable.
- **Zero-copy hardware decode, and it's ours** — the session presenter decodes with Punktfunk's own
decoders; no FFmpeg is linked or bundled. **Vulkan Video** (`pf-vkdecode`, decoding onto the
presenter's own device) leads on NVIDIA and AMD, **VAAPI** (`pf-vaadec` driving a dlopen'd libva,
exporting DRM-PRIME dmabufs) leads on Intel, whichever isn't first is the fallback, and an
OpenH264/rav1d CPU rung is last.
- **Your display's native mode** — the host builds a virtual output at exactly your WxH@Hz; no
scaling, no letterboxing. Steady 60 fps at 1080p60, ~6 ms capture→decoded on the LAN.
- **Audio both ways** — PipeWire playback with a jitter ring, plus mic uplink to the host.
@@ -50,8 +52,11 @@ Per-device install steps and pairing walkthrough:
## Build & run from source
Requires GTK ≥ 4.16, libadwaita ≥ 1.5, FFmpeg 7 or 8 (with VAAPI for hardware decode), PipeWire,
and SDL3 (with hidapi) development packages.
Requires GTK ≥ 4.16, libadwaita ≥ 1.5, PipeWire, and SDL3 (with hidapi) development packages,
plus a C compiler (the CPU rung builds OpenH264 from source). No *decoder* development package
is needed: libva and the Vulkan loader are both opened at runtime rather than linked, so
hardware decode is a fact about the box you **run** on — a Vulkan loader and your GPU's driver,
and libva for the VAAPI rung — not about the one you build on.
```sh
# from the repo root
@@ -85,9 +90,9 @@ src/
tools/screenshots.sh store screenshot capture (app self-capture; Xvfb fallback)
```
The UI-agnostic plumbing — session pump, FFmpeg decode, PipeWire audio, SDL3 gamepads +
keymap, trust store, mDNS discovery, library client, Wake-on-LAN — lives in
`crates/pf-client-core`, shared with the Vulkan session binary.
The UI-agnostic plumbing — session pump, the native decode ladder (Vulkan Video · VAAPI ·
OpenH264/rav1d), PipeWire audio, SDL3 gamepads + keymap, trust store, mDNS discovery, library
client, Wake-on-LAN — lives in `crates/pf-client-core`, shared with the Vulkan session binary.
## Related
clients/linux/THIRD-PARTY-NOTICES.txt
+12331
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clients/linux/src/ui_settings.rs
+26 -8
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@@ -728,7 +728,11 @@ const CODEC_LABELS: &[&str] = &[
"AV1",
"PyroWave (wired LAN)",
];
const DECODERS: &[&str] = &["auto", "vulkan", "vaapi", "software"];
// Stored decoder-preference values. `native-*` since M10 — the bare "vulkan"/"vaapi"
// named libavcodec's rungs, which are deleted; a store still holding them is migrated on
// read (`pf_client_core::video::migrate_decoder_pref`) and simply matches no entry here
// until the user re-picks. The labels below are unchanged and still true.
const DECODERS: &[&str] = &["auto", "native-vulkan", "native-vaapi", "software"];
/// Touch-input model values (persisted) paired with their display labels below — the
/// cross-client set (Android/Apple). Only meaningful on a touchscreen (Deck/tablet).
const TOUCH_MODES: &[&str] = &["trackpad", "pointer", "touch"];
@@ -773,16 +777,26 @@ const APP_LICENSE: &str = concat!(
"\n\n=============================== Apache-2.0 ===============================\n\n",
include_str!("../../../LICENSE-APACHE"),
);
/// Third-party software notices for the linked Rust crates (generated by
/// scripts/gen-third-party-notices.sh; shown as a Legal section in the About dialog).
const THIRD_PARTY_NOTICES: &str = include_str!("../../../THIRD-PARTY-NOTICES.txt");
/// Third-party software notices for the Rust crates THIS CLIENT links — the shell, the
/// session streamer, the headless CLI and the update helper (generated by
/// scripts/gen-third-party-notices.sh; shown as a Legal section in the About dialog, and
/// shipped as /usr/share/doc/punktfunk-client/THIRD-PARTY-NOTICES.txt by the packages).
///
/// Deliberately the client-scoped file and not the workspace-wide one at the repo root:
/// that root file is the HOST's, it still carries `ffmpeg-next` and the full FFmpeg licence
/// text — and after M10 this app links no FFmpeg at all, which is exactly what the section
/// below it claims.
const THIRD_PARTY_NOTICES: &str = include_str!("../THIRD-PARTY-NOTICES.txt");
/// The dynamically linked system libraries — not in the crate notices, since they aren't
/// crates. Their full texts ship with each project rather than being vendored here.
const SYSTEM_LIBRARY_NOTICES: &str =
"This application dynamically links system libraries under their own licenses, including \
FFmpeg (LGPL v2.1+), GTK 4 and libadwaita (LGPL v2.1+), PipeWire (MIT), and SDL 3 (Zlib). \
Their full license texts are available from each project.";
GTK 4 and libadwaita (LGPL v2.1+), PipeWire (MIT), and SDL 3 (Zlib). \
Their full license texts are available from each project. Video decoding uses the \
system's own Vulkan Video and VAAPI drivers (loaded at runtime, never linked), with \
OpenH264 and rav1d — both BSD-2-Clause, and both in the Rust crate notices — as the \
CPU fallback; no FFmpeg is linked or bundled.";
/// Show the About dialog (app license + the third-party-software Legal section) — reached
/// from the primary menu (app.rs `win.about`).
@@ -806,7 +820,7 @@ pub fn show_about(parent: &impl IsA<gtk::Widget>) {
.license_type(gtk::License::Custom)
.license(license.as_str())
.build();
// The native (FFmpeg/GTK/PipeWire/SDL3) components are dynamically linked under their own
// The native (GTK/PipeWire/SDL3) components are dynamically linked under their own
// (LGPL/Zlib/MIT) licenses; the Rust crate notices are the substantive attribution set.
about.add_legal_section(
"Third-party software (Rust crates)",
@@ -1628,7 +1642,11 @@ pub fn show_scoped(
mouse_row.set_selected(mouse_i);
set_row_subtitle(mouse_row.widget(), MOUSE_MODE_CAPTIONS[mouse_i as usize]);
compositor_row.set_selected(index::compositor(s));
let dec_i = DECODERS.iter().position(|&d| d == s.decoder).unwrap_or(0);
// Migrated for the LOOKUP only (the store is left alone): a pre-M10 settings file
// holds `vulkan`/`vaapi`, which match no entry — the combo would show Automatic and
// a save would silently rewrite the user's hardware preference to `auto`.
let dec_stored = pf_client_core::video::migrate_decoder_pref(&s.decoder);
let dec_i = DECODERS.iter().position(|&d| d == dec_stored).unwrap_or(0);
decoder_row.set_selected(dec_i as u32);
stats_row.set_selected(index::stats(s));
fullscreen_row.set_active(s.fullscreen_on_stream);
clients/session/Cargo.toml
-1
View File
@@ -24,7 +24,6 @@ pyrowave = ["pf-client-core/pyrowave", "pf-presenter/pyrowave"]
# (`--no-default-features`) is the ~15 MB-smaller power-user build: same streaming,
# stats on stdout only.
ui = ["dep:pf-console-ui", "dep:serde_json"]
# Same Linux+Windows gating as the rest of the client stack; elsewhere this is a stub
# binary.
[target.'cfg(any(target_os = "linux", windows))'.dependencies]
clients/session/README.md
+55 -7
View File
@@ -49,19 +49,67 @@ path + per-stage latency equation); any tier but Off also emits the stdout mirro
`--no-default-features` is the ~5 MB power-user build — same streaming, stats on stdout
only, no Skia anywhere in the dependency tree.
Decode follows the Settings preference (auto: Vulkan Video → VAAPI → software on Linux,
Vulkan Video → D3D11VA → software on Windows): FFmpeg's Vulkan Video decoder runs on the
presenter's own device where the stack supports it (every vendor, zero copy); VAAPI
dmabufs import per-plane elsewhere (D3D11VA textures on Windows); software is the
universal fallback. 10-bit Main10 and HDR10 are advertised
(`VIDEO_CAP_10BIT|HDR`): P010 decodes through all three paths, and PQ streams present
Decode follows the Settings preference (auto is vendor-ordered: Vulkan Video → VAAPI →
software on Linux, Vulkan Video → D3D11VA → software on Windows, with VAAPI/D3D11VA first
on Intel — every rung native since M10; see "Decode rungs" below): the Vulkan decoder runs
on the presenter's own device where the stack supports it (every vendor, zero copy); VAAPI
dmabufs import per-plane elsewhere (D3D11VA textures on Windows); software is the universal
fallback. 10-bit Main10 and HDR10 are advertised (`VIDEO_CAP_10BIT|HDR`): P010 decodes
through the Vulkan and VAAPI/D3D11VA paths (the CPU rung is 8-bit by contract and refuses
10-bit rather than mis-scaling it), and PQ streams present
on an HDR10/ST.2084 swapchain when the desktop offers one (KDE HDR, gamescope) or
tone-map in-shader to SDR when it doesn't (`PUNKTFUNK_TONEMAP_PEAK` tunes the rolloff,
default ≈1000 nits). The host still gates the upgrade behind its `PUNKTFUNK_10BIT`
policy.
Debug/bisect knobs: `PUNKTFUNK_DECODER=vulkan|vaapi|d3d11va|software`, `PUNKTFUNK_PRESENT_MODE=
## Decode rungs (M10: native only)
**This binary contains no FFmpeg.** `auto` walks native rungs — pf-vkdecode over Vulkan
Video, then the platform's own (pf-dxvadec on Windows, pf-vaadec on Linux), then the CPU
rung (openh264/rav1d). The libavcodec rungs that used to sit under each of them are
deleted, along with `pf-ffvk` and the `ffmpeg-next` dependency.
Two of the native rungs have never decoded a frame on real hardware (native VAAPI at all;
native D3D11VA's AV1 leg). They run anyway — with the libavcodec twins gone, the only
thing below them is the CPU, so barring them would cost the session hardware decode
outright rather than move it one rung down. What replaces the safety net is the log: every
session names the rung it landed on with its evidence state,
decode rung active rung=native-vulkan codec=HEVC hardware_verified=true evidence=...
…and that line is a **WARNING** when nothing has ever decoded a frame through the
rung/codec pair the session chose. `pf-client-core`'s `video.rs` module docs carry the full
table; read any field report about M10 against it.
Debug/bisect knobs: `PUNKTFUNK_DECODER=native-vulkan|native-vaapi|native-d3d11va|software`
(a pin skips the vendor order, which is how a lab run reaches a rung `auto` will not pick
on this device; a pinned rung that cannot open still falls through to the standard ladder,
loudly; `native-vaapi` also takes `PUNKTFUNK_VAAPI_DEVICE=/dev/dri/renderDNNN` to choose
the GPU). The pre-M10 spellings `vulkan`/`vaapi`/`d3d11va` named the libavcodec rungs
specifically; they are MIGRATED onto the native rung for the same hardware family, with a
`warn` line saying so — every desktop Settings UI offered those values, so refusing them
would end a session over a dropdown someone picked long ago.
`PUNKTFUNK_PRESENT_MODE=
mailbox|fifo|immediate|fifo_relaxed` (default MAILBOX, FIFO where the surface offers no
MAILBOX — AMD on Windows), `PUNKTFUNK_VK_DEVICE=<index>` (multi-GPU), and
`PUNKTFUNK_HW_FAULT=import` (fault every VAAPI dmabuf import — proves the three-strike
demotion to software on healthy hardware).
`PUNKTFUNK_AU_FAULT=drop|truncate|flip[:period]` deliberately corrupts decoder input on the
native Vulkan lane (default period 60 — one AU a second at 60 fps; inert everywhere else, and
inert entirely if the value doesn't parse). `drop` swallows the AU, so the next one references a
picture that was never decoded — the bitstream planner catches it immediately. `truncate` delivers
a picture whose slice data stops mid-frame and `flip` alters one byte deep in the payload: both
parse perfectly, so only the driver's per-frame decode-status query can see them, and neither is
visible at all on a driver without `queryResultStatusSupport`. Watch the
result on the Detailed stats line's `integrity:` term (`damaged` = concealment the planner caught,
`refused` = AUs the decoder rejected outright, `driver-failed` = the hardware's own verdict, `run`
= consecutive frames with no picture, `worst run` = the longest such stretch of the session — the
once-a-second `run` sample misses the bad moment almost every time — and `no driver status` = this
device cannot answer the driver question at all). A session that lands on any other lane says so
in the log rather than faulting silently.
Note that `PUNKTFUNK_AU_DUMP` records the AU as it arrived from the HOST, while the fault injector
runs later, at the native decoder's own entry. On a faulted run the dump is therefore the clean
bitstream — reconstruct the damaged bytes from the spec if you need them (the injector is pure and
deterministic).
clients/session/src/main.rs
+15 -8
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@@ -346,9 +346,13 @@ mod session_main {
bitrate_kbps: settings.bitrate_kbps,
audio_channels: settings.audio_channels,
preferred_codec: settings.preferred_codec(),
// Nothing excluded on a fresh dial. Only the run loop's codec-fallback retry
// sets this, and it does so on a CLONE of these params — a Settings-level
// "never use HEVC" would be `preferred_codec`, not this.
exclude_codecs: 0,
// HDR off = don't advertise 10-bit/HDR at all; the host then never upgrades.
// MULTI_SLICE is decoder truth for THIS embedder: every desktop decode stack
// (FFmpeg software, VAAPI, D3D11VA, Vulkan Video) handles AUs carrying several
// (Vulkan Video, D3D11VA, VAAPI, openh264/rav1d) handles AUs carrying several
// slice NALs, so the host may keep its multi-slice low-latency default (§7 LN1).
// The mobile/TV embedders must NOT copy this blindly — Amlogic MediaCodec wedges
// on multi-slice AUs (see `VIDEO_CAP_MULTI_SLICE`), so they advertise per-decoder.
@@ -357,12 +361,14 @@ mod session_main {
// HEVC, and a real GPU 4:4:4 encode probe, and answers the resolved chroma in the
// Welcome BEFORE we build a decoder. Advertised whenever the user asks because
// every path can DISPLAY it: the Vulkan presenter samples the 2-plane 4:4:4 pool
// formats (hardware RExt decode where the driver offers it — NVIDIA today) and
// swscale converts anything else for the software rung, with the decoder ladder
// demoting on its own. No capability probe gates the bit — software decode is the
// guaranteed floor — but the cost is VISIBLE, not silent: the Detailed stats
// overlay prints the resolved chroma ("4:4:4→4:2:0" when the host declined) and
// the decode path frames actually took.
// formats (hardware RExt decode where the driver offers it — NVIDIA today),
// with the decoder ladder demoting on its own. No capability probe gates the
// bit — but note (M8) that the software rung below it is 4:2:0 8-bit ONLY and
// refuses anything else rather than mis-scaling it, so on a box whose hardware
// 4:4:4 decode fails the floor is a codec fallback, not a converted picture.
// The cost stays VISIBLE, not silent: the Detailed stats overlay prints the
// resolved chroma ("4:4:4→4:2:0" when the host declined) and the decode path
// frames actually took.
video_caps: punktfunk_core::quic::VIDEO_CAP_MULTI_SLICE
| if settings.hdr_enabled {
punktfunk_core::quic::VIDEO_CAP_10BIT | punktfunk_core::quic::VIDEO_CAP_HDR
@@ -488,7 +494,8 @@ mod session_main {
///
/// RADV-only knob: ANV/NVIDIA/other drivers ignore `RADV_PERFTEST`, and a box where video
/// decode is already the default just no-ops. Append rather than clobber so a user's own
/// `RADV_PERFTEST` survives; `PUNKTFUNK_DECODER=vaapi` still overrides the decoder choice.
/// `RADV_PERFTEST` survives; `PUNKTFUNK_DECODER=native-vaapi` still overrides the decoder
/// choice (the pre-M10 `vaapi` spelling reaches the same rung — it migrates, loudly).
#[cfg(target_os = "linux")]
fn enable_radv_video_decode() {
const TOKEN: &str = "video_decode";
clients/windows/Cargo.toml
-5
View File
@@ -78,11 +78,6 @@ windows = { git = "https://github.com/microsoft/windows-rs", rev = "acb5a1a74410
"winuser",
] }
# FFmpeg — used only to enumerate which codecs this client can decode (probe::decodable_codecs),
# advertised to the host on the speed-test connect. Same pin as the host/Linux client. (Real
# decode + present live in the spawned punktfunk-session binary.)
ffmpeg-next = "8"
# Gamepad enumeration + pin persistence for Settings runs on pf-client-core's shared SDL service
# (see the `gamepad` field in app/); the spawned punktfunk-session does the actual forwarding. SDL3
# itself (built from source via the bundled CMake on Windows) is pulled transitively by
clients/windows/README.md
+9 -7
View File
@@ -2,7 +2,7 @@
The native **Windows** app for streaming a punktfunk host to your PC. A modern WinUI 3 app that
discovers hosts on your network, pairs with a PIN, and streams at your display's own resolution and
refresh rate — with a hardware-accelerated D3D11 video path and HDR.
refresh rate — with hardware-accelerated video decode and HDR.
It's **pure Rust**: the UI is WinUI 3 driven through [windows-reactor](https://github.com/microsoft/windows-rs)
(a declarative, React-like framework), and it links the shared **`punktfunk-core`** directly to speak
@@ -10,9 +10,11 @@ the fast **`punktfunk/1`** protocol.
## Features
- **Hardware decode, GPU present** — FFmpeg HEVC with a **D3D11VA zero-copy path** (decoder and
presenter share one D3D11 device; NV12/P010 textures sampled straight into a `SwapChainPanel`
composition swapchain), with a robust software-decode fallback.
- **Hardware decode, GPU present** — Punktfunk's own decoders, no FFmpeg anywhere in the client:
**Vulkan Video** (`pf-vkdecode`) leads on NVIDIA and AMD, **D3D11VA** (`pf-dxvadec` driving
`ID3D11VideoDecoder`) leads on Intel, whichever isn't first is the fallback, and an
OpenH264/rav1d CPU rung is last. Either hardware rung hands its surface to the Vulkan presenter
without a CPU copy.
- **HDR10** — advertise 10-bit/HDR, detect PQ in-band, and flip the swapchain to `R10G10B10A2` +
ST.2084 with HDR10 metadata.
- **Your display's native mode** — the host builds a virtual display at exactly your WxH@Hz.
@@ -42,9 +44,9 @@ A stock [Moonlight](https://moonlight-stream.org/) client also works over GameSt
## Build from source
Windows-only (the crate builds as a stub on other platforms so the workspace stays green). You need
the MSVC toolchain, an `FFMPEG_DIR` FFmpeg tree, and CMake (SDL3 builds from source). The Windows
App SDK runtime bootstrap is staged next to the exe by `windows-reactor-setup` from this crate's
own `build.rs` — no extra environment needed.
the MSVC toolchain and CMake (SDL3 builds from source) — nothing else: decode is native since M10,
so there is no `FFMPEG_DIR` to point anywhere, and the Windows App SDK runtime bootstrap is staged
next to the exe by `windows-reactor-setup` from this crate's own `build.rs`.
```sh
cargo build -p punktfunk-client-windows --target x86_64-pc-windows-msvc
clients/windows/THIRD-PARTY-NOTICES.txt
+12213
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File diff suppressed because it is too large Load Diff
clients/windows/packaging/README.md
+12 -5
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@@ -9,8 +9,9 @@ touches the client (canary) and on `vX.Y.Z` release tags (stable) — see
**Two architectures, one x64 runner.** Both `x64` and `arm64` packages are produced off the single
x64 Windows runner — `x86_64-pc-windows-msvc` builds natively, `aarch64-pc-windows-msvc` is
cross-compiled (the x64 MSVC toolset ships the ARM64 cross compiler; the matrix points `FFMPEG_DIR`
at the runner's ARM64 FFmpeg tree, `C:\Users\Public\ffmpeg-arm64`). Artifacts are arch-suffixed
cross-compiled (the x64 MSVC toolset ships the ARM64 cross compiler; since M10 nothing in the
package links FFmpeg, so neither arch needs a per-arch `FFMPEG_DIR` tree staged on the runner —
one less thing the ARM64 leg can be missing). Artifacts are arch-suffixed
(`..._x64.msix` / `..._arm64.msix`, each with its matching `.cer`); `pack-msix.ps1 -Arch x64|arm64`
stamps the manifest `ProcessorArchitecture` and names the output. See
[`windows.yml`](../../../.gitea/workflows/windows.yml) for the cross-build rationale.
@@ -25,10 +26,17 @@ stamps the manifest `ProcessorArchitecture` and names the output. See
| `punktfunk-session.exe` | the release build — the Vulkan session client the shell spawns for every stream (sibling resolution, `src/spawn.rs`). Skia links statically; `vulkan-1.dll` is a GPU-driver component, never bundled. ARM64 builds it `--no-default-features` (no Skia console UI) until rust-skia ships aarch64-pc-windows-msvc prebuilts |
| `Microsoft.WindowsAppRuntime.Bootstrap.dll`, `resources.pri` | staged by the client's `build.rs` via `windows-reactor-setup::as_framework_dependent()` |
| `SDL3.dll` | auto-staged by the `sdl3` crate |
| `avcodec/avformat/avutil/swscale/swresample/...-*.dll` | `FFMPEG_DIR\bin` |
| `licenses\*` | the project's MIT/Apache texts + the generated `THIRD-PARTY-NOTICES.txt` (MSIX has no installer EULA page, so attribution ships as files) |
| `Assets\*.png` | checked-in tile/store logos (rasterized from `packaging/flatpak/io.unom.Punktfunk.svg`) |
| `AppxManifest.xml` | the template here, with `{VERSION}`/`{PUBLISHER}` substituted |
**No FFmpeg DLLs.** The client decodes natively since M10 (`pf-vkdecode` / `pf-dxvadec` /
OpenH264+rav1d — punktfunk-planning `design/client-native-decode.md` §6), so nothing here
link-imports `libav*` and the wildcard `avcodec/avformat/avutil/swscale/swresample-*.dll` copy is
gone, along with the FFmpeg LGPL notice that accompanied it — shipping that notice now would claim
a dependency the package doesn't have. The **host** installer is unchanged:
`packaging/windows/pack-host-installer.ps1` still ships those DLLs for its AMF/QSV encode path.
### Why an "unpackaged" WinUI app packages cleanly
`main` calls `windows_reactor::bootstrap()`, which runs `MddBootstrapInitialize2` with
@@ -87,8 +95,7 @@ cargo build --release -p punktfunk-client-windows --target x86_64-pc-windows-msv
pwsh -File clients/windows/packaging/pack-msix.ps1 `
-Version 0.2.0.0 -TargetDir C:\t\x86_64-pc-windows-msvc\release -OutDir C:\t\msix
# arm64 (cross-compiled; point FFMPEG_DIR at the ARM64 tree)
$env:FFMPEG_DIR = 'C:\Users\Public\ffmpeg-arm64'
# arm64 (cross-compiled; no extra environment — the client links no FFmpeg)
cargo build --release -p punktfunk-client-windows --target aarch64-pc-windows-msvc
pwsh -File clients/windows/packaging/pack-msix.ps1 `
-Version 0.2.0.0 -Arch arm64 -TargetDir C:\t\aarch64-pc-windows-msvc\release -OutDir C:\t\msix
clients/windows/packaging/pack-msix.ps1
+26 -19
View File
@@ -4,9 +4,14 @@
.DESCRIPTION
Builds a packaging layout from a release `cargo build` output (exe + the reactor/SDL3 auto-staged
DLLs + resources.pri + FFmpeg DLLs + the checked-in Assets + the manifest), runs makeappx, and
DLLs + resources.pri + the checked-in Assets + the manifest), runs makeappx, and
signs with signtool. Idempotent; safe to re-run.
NO FFmpeg DLLs since M10 (design/client-native-decode.md §6): the client decodes natively
(pf-vkdecode / pf-dxvadec / openh264+rav1d) and link-imports no libav* at all, so the
wildcard copy and its LGPL notice are gone with it. The HOST installer is unchanged —
packaging/windows/pack-host-installer.ps1 still ships them for its amf-qsv encode path.
Signing cert precedence:
1. -PfxBase64 / -PfxPassword (a real or shared code-signing cert, e.g. from CI secrets) — the
cert's subject DN MUST match -Publisher (which is stamped into the manifest Identity).
@@ -22,8 +27,7 @@
.EXAMPLE
# x64 (default arch):
pwsh -File pack-msix.ps1 -Version 0.2.137.0 -TargetDir C:\t\x86_64-pc-windows-msvc\release -OutDir C:\t\msix
# arm64 (point -TargetDir + FFMPEG_DIR at the ARM64 build/tree):
$env:FFMPEG_DIR='C:\Users\Public\ffmpeg-arm64'
# arm64 (point -TargetDir at the ARM64 build):
pwsh -File pack-msix.ps1 -Version 0.2.137.0 -Arch arm64 -TargetDir C:\t-a64\aarch64-pc-windows-msvc\release -OutDir C:\t-a64\msix
#>
[CmdletBinding()]
@@ -31,7 +35,6 @@ param(
[Parameter(Mandatory = $true)][string]$Version, # 4-part numeric, e.g. 0.2.137.0
[Parameter(Mandatory = $true)][string]$TargetDir, # cargo --release output dir (has the exe)
[ValidateSet('x64', 'arm64')][string]$Arch = 'x64', # package ProcessorArchitecture + artifact suffix
[string]$FfmpegBin = $(if ($env:FFMPEG_DIR) { Join-Path $env:FFMPEG_DIR 'bin' } else { 'C:\Users\Public\ffmpeg\bin' }),
[string]$OutDir = (Join-Path $TargetDir 'msix'),
[string]$Publisher = 'CN=unom', # MUST equal the signing cert subject DN
[string]$PfxBase64 = $env:MSIX_CERT_PFX_B64, # optional: base64 of a code-signing .pfx
@@ -83,28 +86,32 @@ foreach ($f in $required) {
Copy-Item $src (Join-Path $layout $f) -Force
}
# FFmpeg runtime DLLs (the exe link-imports the decode set; copy them all — small and correct).
# These are unmodified BtbN *lgpl-shared* builds, linked dynamically (replaceable DLLs) — FFmpeg is
# used under the LGPL v2.1+; the license text + notice ship in licenses\ below.
$ff = Get-ChildItem -Path $FfmpegBin -Filter *.dll -ErrorAction SilentlyContinue
if (-not $ff) { throw "no FFmpeg DLLs in $FfmpegBin" }
$ff | ForEach-Object { Copy-Item $_.FullName (Join-Path $layout $_.Name) -Force }
# license/attribution payload (MSIX has no installer EULA page, so ship them as files): FFmpeg's LGPL
# notice + license text, the project's own MIT/Apache texts, and the generated third-party notices.
# license/attribution payload (MSIX has no installer EULA page, so ship them as files): the
# project's own MIT/Apache texts plus the generated third-party notices, which is where every
# vendored/statically-linked dependency's attribution lives (openh264 BSD-2, rav1d BSD-2, …).
#
# The FFmpeg LGPL notice + license texts that used to be copied here went with the DLLs at M10:
# nothing in this package links libav* any more, so shipping an LGPL notice would be claiming a
# dependency that is not there.
#
# For the same reason the notices come from clients/windows/ and NOT from the repo root: the root
# file is workspace-wide, it is what the HOST ships out of, and it still lists ffmpeg-next plus the
# full FFmpeg licence text. The client-scoped file (same generator, `--packages
# punktfunk-client-windows,punktfunk-client-session,punktfunk-cli`) is the one that describes what
# is actually inside this .msix — and it is the same file the app's Licenses page shows.
$licDir = Join-Path $layout 'licenses'
New-Item -ItemType Directory -Force -Path $licDir | Out-Null
$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot '..\..\..')).Path
Copy-Item (Join-Path $repoRoot 'packaging\windows\licenses\FFmpeg-LGPL-NOTICE.txt') $licDir -Force -ErrorAction SilentlyContinue
foreach ($n in @('THIRD-PARTY-NOTICES.txt', 'LICENSE-MIT', 'LICENSE-APACHE')) {
$clientRoot = (Resolve-Path (Join-Path $PSScriptRoot '..')).Path
foreach ($n in @('LICENSE-MIT', 'LICENSE-APACHE')) {
$p = Join-Path $repoRoot $n
if (Test-Path $p) { Copy-Item $p $licDir -Force }
}
$ffRoot = Split-Path $FfmpegBin -Parent
foreach ($lic in @('LICENSE.txt', 'LICENSE', 'COPYING.LGPLv2.1', 'COPYING.LGPLv3', 'COPYING.txt')) {
$p = Join-Path $ffRoot $lic
if (Test-Path $p) { Copy-Item $p $licDir -Force }
$notices = Join-Path $clientRoot 'THIRD-PARTY-NOTICES.txt'
if (-not (Test-Path $notices)) {
throw "missing $notices — run scripts/gen-third-party-notices.sh (it generates the per-client copies)"
}
Copy-Item $notices $licDir -Force
# tile/store assets
Copy-Item (Join-Path $assets '*') (Join-Path $layout 'Assets') -Force
clients/windows/src/app/licenses.rs
+13 -6
View File
@@ -12,9 +12,15 @@ const APP_LICENSE: &str = concat!(
"\n\n================================ Apache-2.0 ================================\n\n",
include_str!("../../../../LICENSE-APACHE"),
);
/// Third-party software notices for the linked Rust crates (generated by
/// scripts/gen-third-party-notices.sh; the MSIX also ships this under licenses/).
const THIRD_PARTY_NOTICES: &str = include_str!("../../../../THIRD-PARTY-NOTICES.txt");
/// Third-party software notices for the Rust crates THIS CLIENT links — the shell, the
/// session streamer and the headless CLI (generated by scripts/gen-third-party-notices.sh;
/// the MSIX ships the same file under licenses/).
///
/// Deliberately the client-scoped file and not the workspace-wide one at the repo root:
/// that root file is the HOST's, it still carries `ffmpeg-next` and the full FFmpeg licence
/// text — and after M10 this app bundles no FFmpeg at all, so printing that attribution
/// three lines under a card saying so would be a false statement to the user's face.
const THIRD_PARTY_NOTICES: &str = include_str!("../../THIRD-PARTY-NOTICES.txt");
pub(crate) fn licenses_page(ctx: &Arc<AppCtx>, set_screen: &AsyncSetState<Screen>) -> Element {
let back_btn = button("Back").accent().icon(Symbol::Back).on_click({
@@ -46,9 +52,10 @@ pub(crate) fn licenses_page(ctx: &Arc<AppCtx>, set_screen: &AsyncSetState<Screen
vstack((
text_block("Bundled components").font_size(15.0).semibold(),
text_block(
"FFmpeg is bundled under the LGPL v2.1+ (dynamically linked, replaceable DLLs); its \
license and notice ship in the installed licenses\\ folder. SDL 3 (Zlib) and the \
Windows App SDK (Microsoft) are also linked.",
"SDL 3 (Zlib) and the Windows App SDK (Microsoft) are linked; their notices ship \
in the installed licenses\\ folder. Video decoding uses Windows' own DXVA and \
Vulkan Video, with OpenH264 and rav1d (both BSD-2-Clause) as the CPU fallback — \
no FFmpeg is bundled.",
)
.font_size(12.0)
.wrap()
clients/windows/src/app/settings.rs
+11 -5
View File
@@ -45,12 +45,14 @@ fn render_scale_label(scale: f64) -> String {
}
}
/// Decode backend presets: `(stored value, display label)`.
// A stored legacy "hardware" (the D3D11VA era) matches no preset, so the combo shows
// Automatic — which is exactly how the session's decoder chain reads that value.
// A stored legacy value that matches no preset (the D3D11VA-era "hardware", and since M10
// the bare "vulkan"/"d3d11va" that named libavcodec's rungs) shows as Automatic — which is
// how the session's ladder reads "hardware", and near enough for the other two, which
// `pf_client_core::video::migrate_decoder_pref` maps onto the entries below anyway.
const DECODERS: &[(&str, &str)] = &[
("auto", "Automatic (GPU, fall back to CPU)"),
("vulkan", "Hardware (Vulkan Video)"),
("d3d11va", "Hardware (Direct3D 11 / DXVA)"),
("native-vulkan", "Hardware (Vulkan Video)"),
("native-d3d11va", "Hardware (Direct3D 11 / DXVA)"),
("software", "Software (CPU)"),
];
/// Audio channel presets: `(channel count, display label)`. The host clamps to what it can
@@ -862,7 +864,11 @@ pub(crate) fn settings_page(
);
// --- Video -----------------------------------------------------------------------------
let (dec_names, dec_i) = presets(DECODERS, |v| *v == s.decoder);
// Migrated for the LOOKUP only (the store is left alone): a pre-M10 settings file
// holds `vulkan`/`d3d11va`, which match no preset — the combo would show Automatic and
// a save would silently rewrite the user's hardware preference to `auto`.
let stored_decoder = pf_client_core::video::migrate_decoder_pref(&s.decoder);
let (dec_names, dec_i) = presets(DECODERS, |v| *v == stored_decoder);
let decoder_combo = setting_combo(ctx, scope, (rev, set_rev), dec_names, dec_i, |s, i| {
s.decoder = DECODERS[i].0.to_string();
});
clients/windows/src/app/stream.rs
+6 -1
View File
@@ -81,8 +81,13 @@ pub(crate) fn session_page(ctx: &Arc<super::AppCtx>, hud: &HudSample) -> Element
.map(str::trim)
.filter(|c| !c.is_empty())
.map(|c| {
// The `stats:` decode-path tags (see pf-client-core's session
// pump). M10 removed the `vulkan`/`vaapi`/`d3d11va` tags with their
// rungs; a hardware rung is now always a `native-*` one.
let kind = match c {
"vulkan" | "vaapi" => Pill::Good,
"native-vulkan" | "native-vaapi" | "native-d3d11va" | "pyrowave" => {
Pill::Good
}
"software" => Pill::Info,
_ => Pill::Neutral,
};
clients/windows/src/probe.rs
+16 -15
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@@ -6,26 +6,27 @@
//! over the real data plane, so it stays here. [`decodable_codecs`] rode along for the same
//! reason — the probe connect still advertises which codecs this client can decode.
use ffmpeg_next as ffmpeg;
use punktfunk_core::client::NativeClient;
use punktfunk_core::config::{CompositorPref, GamepadPref, Mode};
use std::time::{Duration, Instant};
/// The `quic` codec bitfield this client can decode — whatever FFmpeg has a decoder for (HEVC/H.264
/// always; AV1 when built in). Advertised to the host so it never emits a codec we can't decode.
/// The `quic` codec bitfield this client can decode. Advertised to the host so it never emits
/// a codec we can't decode.
///
/// It is pf-client-core's [`decodable_codecs`](pf_client_core::video::decodable_codecs) —
/// the codecs the SESSION BINARY's rungs speak, which is the process that actually decodes.
/// This shell used to walk libavcodec's registry (`ffmpeg::decoder::find` per id) for the
/// same answer; that was wrong in two ways even before M10 deleted the dependency. It
/// described the decoders in THIS process, which decodes nothing, and it answered "a
/// decoder exists" where the question is "a rung can keep up" — the AV1-on-CPU promise
/// `decodable_codecs_for` exists to refuse.
///
/// ⚠ Deliberately the DEVICE-FREE answer ([`decodable_codecs`], not
/// `decodable_codecs_for`): this connect creates no presenter and has no `VulkanDecodeDevice`
/// to gate AV1 on, and it decodes nothing — the codec it advertises is never exercised. A
/// real session's Hello is built in the session binary, with the device in hand.
pub fn decodable_codecs() -> u8 {
let _ = ffmpeg::init();
let mut bits = 0u8;
for (id, bit) in [
(ffmpeg::codec::Id::HEVC, punktfunk_core::quic::CODEC_HEVC),
(ffmpeg::codec::Id::H264, punktfunk_core::quic::CODEC_H264),
(ffmpeg::codec::Id::AV1, punktfunk_core::quic::CODEC_AV1),
] {
if ffmpeg::decoder::find(id).is_some() {
bits |= bit;
}
}
bits
pf_client_core::video::decodable_codecs()
}
/// Blocking speed-test probe (the GUI's per-host "Test" and the `--headless --speed-test` CLI):
compliance/sbom/manual-components.cdx.json
+2 -2
View File
@@ -46,8 +46,8 @@
{
"type": "library",
"name": "FFmpeg",
"version": "7.x/8.x (system-provided on Linux; replaceable DLLs bundled with the Windows packages)",
"description": "Dynamically linked libav* decode/encode; LGPL notice at packaging/windows/licenses/FFmpeg-LGPL-NOTICE.txt",
"version": "7.x/8.x (HOST only \u2014 system-provided on Linux; replaceable DLLs bundled with the Windows host installer)",
"description": "Dynamically linked libav* ENCODE for the host (pf-encode: NVENC-libav, VAAPI, AMF/QSV); LGPL notice at packaging/windows/licenses/FFmpeg-LGPL-NOTICE.txt. No punktfunk CLIENT links FFmpeg since M10 \u2014 client decode is Vulkan Video / DXVA / VAAPI / VideoToolbox / MediaCodec with openh264 + rav1d as the CPU floor.",
"licenses": [{ "license": { "id": "LGPL-2.1-or-later" } }],
"externalReferences": [{ "type": "website", "url": "https://ffmpeg.org" }]
},
crates/pf-bitstream/Cargo.toml
+16
View File
@@ -0,0 +1,16 @@
[package]
name = "pf-bitstream"
description = "Client-side bitstream layer for native decode: AU parsing, POC/DPB/reference derivation and per-AU DecodePlans (H.264/HEVC/AV1) on the vendored cros-codecs parsers — the layer libavcodec used to be (design/client-native-decode.md §3.1)"
version.workspace = true
edition.workspace = true
rust-version.workspace = true
license.workspace = true
authors.workspace = true
repository.workspace = true
[dependencies]
cros-codecs = { path = "vendor/cros-codecs" }
tracing = "0.1"
[lints]
workspace = true
crates/pf-bitstream/src/av1.rs
+1101
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File diff suppressed because it is too large Load Diff
crates/pf-bitstream/src/h264.rs
+2779
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File diff suppressed because it is too large Load Diff
crates/pf-bitstream/src/h265.rs
+3320
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File diff suppressed because it is too large Load Diff
crates/pf-bitstream/src/lib.rs
+157
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@@ -0,0 +1,157 @@
//! The client's bitstream layer for native decode (design/client-native-decode.md §3.1):
//! everything a stateless hardware decoder needs to know about an AU before submission —
//! parsed headers, POC, DPB state, reference lists (including MMCO/LTR, which the hosts'
//! RFI recovery actively uses), recovery-point SEI — derived once here and consumed by
//! every backend (Vulkan `StdVideo*`, DXVA picparams, libva buffers).
//!
//! Parsing primitives come from the vendored cros-codecs parser layer
//! (`vendor/cros-codecs`, see its PROVENANCE.md); this crate owns what upstream keeps in
//! its Linux-only `decoder::stateless` half — the per-AU orchestration — plus the pieces
//! upstream lacks (SEI payload parsing: their parsers classify SEI NALUs but never read
//! them).
//!
//! Scope discipline: punktfunk clients decode punktfunk hosts — zero-reorder, no
//! B-frames, progressive, parameter sets from encoders we control. Implement to spec
//! where cheap; reject-with-log outside that envelope rather than half-decode.
//!
//! Nothing in this crate may touch a GPU API, an OS handle, or the network: CPU-only by
//! construction, so its tests run on every CI leg including macOS. And no `unsafe`,
//! compiler-enforced — this layer exists to replace C parsers; it does not get to
//! reintroduce their failure mode.
#![forbid(unsafe_code)]
pub mod av1;
pub mod h264;
pub mod h265;
pub mod sei;
// The vendor-pinning smoke tests below assert against byte counts and golden values from
// the vendored snapshot's own test vectors; a cros-codecs re-sync that shifts parser
// behavior must trip HERE, in our tree, not in a decode session.
#[cfg(test)]
mod vendor_smoke {
use std::io::Cursor;
use cros_codecs::bitstream_utils::IvfIterator;
use cros_codecs::codec::av1::parser::ObuAction;
use cros_codecs::codec::av1::parser::ParsedObu;
use cros_codecs::codec::h264::parser::Nalu as H264Nalu;
use cros_codecs::codec::h264::parser::Parser as H264Parser;
use cros_codecs::codec::h265::parser::Nalu as H265Nalu;
use cros_codecs::codec::h265::parser::Parser as H265Parser;
const H264_25FPS: &[u8] =
include_bytes!("../vendor/cros-codecs/src/codec/h264/test_data/test-25fps.h264");
const H265_25FPS: &[u8] =
include_bytes!("../vendor/cros-codecs/src/codec/h265/test_data/test-25fps.h265");
const AV1_25FPS: &[u8] =
include_bytes!("../vendor/cros-codecs/src/codec/av1/test_data/test-25fps.ivf.av1");
const VP9_25FPS: &[u8] =
include_bytes!("../vendor/cros-codecs/src/codec/vp9/test_data/test-25fps.vp9");
#[test]
fn h264_parses_the_vendored_vector_to_its_goldens() {
let mut cursor = Cursor::new(H264_25FPS);
let mut parser = H264Parser::default();
let (mut nalus, mut sps, mut slices) = (0u32, 0u32, 0u32);
let mut coded = (0u32, 0u32);
while let Ok(nalu) = H264Nalu::next(&mut cursor) {
nalus += 1;
if let Ok(s) = parser.parse_sps(&nalu) {
sps += 1;
coded = (
(s.pic_width_in_mbs_minus1 as u32 + 1) * 16,
(s.pic_height_in_map_units_minus1 as u32 + 1) * 16,
);
continue;
}
if parser.parse_pps(&nalu).is_ok() {
continue;
}
if parser.parse_slice_header(nalu).is_ok() {
slices += 1;
}
}
// 759 is upstream's own golden for this stream (chromium h264_parser_unittest lineage).
assert_eq!(nalus, 759);
assert_eq!(sps, 4);
assert_eq!(slices, 500);
assert_eq!(coded, (320, 240));
}
#[test]
fn h265_parses_the_vendored_vector() {
let mut cursor = Cursor::new(H265_25FPS);
let mut parser = H265Parser::default();
let (mut nalus, mut sps, mut slices) = (0u32, 0u32, 0u32);
while let Ok(nalu) = H265Nalu::next(&mut cursor) {
nalus += 1;
if parser.parse_sps(&nalu).is_ok() {
sps += 1;
continue;
}
if parser.parse_pps(&nalu).is_ok() {
continue;
}
if parser.parse_slice_header(nalu).is_ok() {
slices += 1;
}
}
assert_eq!(nalus, 254);
assert_eq!(sps, 1);
assert_eq!(slices, 250);
}
#[test]
fn av1_walks_obus_and_maintains_ref_slots_across_the_stream() {
let mut parser = cros_codecs::codec::av1::parser::Parser::default();
let (mut obus, mut frames) = (0u32, 0u32);
for packet in IvfIterator::new(AV1_25FPS) {
let mut consumed = 0;
while let Ok(action) = parser.read_obu(&packet[consumed..]) {
let obu = match action {
ObuAction::Process(obu) => obu,
ObuAction::Drop(n) => {
consumed += n as usize;
continue;
}
};
consumed += obu.bytes_used;
obus += 1;
// `ref_frame_update` is the parser's ref-slot bookkeeping; without it,
// inter frames fail with "Reference is invalid" — the parser validates
// reference integrity rather than trusting the stream.
match parser.parse_obu(obu).expect("parse_obu") {
ParsedObu::FrameHeader(fh) => {
frames += 1;
parser.ref_frame_update(&fh).expect("ref slot update");
}
ParsedObu::Frame(f) => {
frames += 1;
parser.ref_frame_update(&f.header).expect("ref slot update");
}
_ => {}
}
}
}
// 525 is upstream's own golden (cross-checked against GStreamer's OBU walk).
assert_eq!(obus, 525);
assert_eq!(frames, 274);
}
#[test]
fn vp9_splits_superframes_and_parses_headers() {
let mut parser = cros_codecs::codec::vp9::parser::Parser::default();
let (mut chunks, mut frames) = (0u32, 0u32);
for packet in IvfIterator::new(VP9_25FPS) {
chunks += 1;
frames += parser
.parse_chunk(packet.as_ref())
.expect("vp9 chunk")
.len() as u32;
}
assert_eq!(chunks, 250);
// > chunks proves superframe splitting engaged.
assert_eq!(frames, 269);
}
}
crates/pf-bitstream/src/sei.rs
+346
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@@ -0,0 +1,346 @@
//! SEI payload parsing — the piece the vendored parser layer lacks: upstream classifies
//! SEI NALUs but never reads a payload. punktfunk needs exactly one payload type per
//! codec: the recovery point SEI, which hosts emit on RFI recovery so the client knows
//! where a decode-from-here point lands. Every other payload type is skipped by its
//! declared size.
//!
//! Both codecs put the recovery point at payload type 6 with the same D.1 message
//! framing, but the payload syntax differs: H.264 (D.1.8/D.2.8) counts recovery in
//! `frame_num` increments (`recovery_frame_cnt`, ue(v)) and carries a slice-group bit
//! pair; H.265 (D.2.8/D.3.8) counts in picture order (`recovery_poc_cnt`, se(v) — it
//! can be negative) and has no slice-group field. Hence two parsers over one shared
//! message walk.
/// Recovery point SEI (D.2.8).
///
/// `recovery_frame_cnt` counts in `frame_num` increments from the AU carrying the SEI to
/// the picture at which output is exact (`exact_match`) or approximate. `broken_link` set
/// means pictures before the recovery point may be visually broken and must not be shown.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct RecoveryPoint {
pub recovery_frame_cnt: u32,
pub exact_match: bool,
pub broken_link: bool,
}
/// Recovery point SEI, H.265 flavour (D.3.8).
///
/// `recovery_poc_cnt` is the POC delta from the picture carrying the SEI to the
/// recovery-point picture — se(v)-coded, so unlike H.264's `recovery_frame_cnt` it can
/// be NEGATIVE (a recovery point among leading pictures). `exact_match`/`broken_link`
/// keep their H.264 semantics.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct RecoveryPointHevc {
pub recovery_poc_cnt: i32,
pub exact_match: bool,
pub broken_link: bool,
}
/// Parse the first recovery point SEI message out of an H.264 SEI NALU.
///
/// `sei_payload` are the bytes of the NALU after its one-byte NAL header, emulation
/// prevention bytes still in place (they are removed here — 7.4.1 RBSP extraction).
/// `Ok(None)` means the NALU parsed cleanly but carries no recovery point.
pub fn parse_recovery_point(sei_payload: &[u8]) -> Result<Option<RecoveryPoint>, String> {
let rbsp = strip_emulation_prevention(sei_payload);
let Some(payload) = first_recovery_point_payload(&rbsp)? else {
return Ok(None);
};
let mut r = BitCursor::new(payload);
let recovery_frame_cnt = r.read_ue()?;
let exact_match = r.read_bit()? != 0;
let broken_link = r.read_bit()? != 0;
// changing_slice_group_idc u(2): parsed to keep the reader honest, unused —
// slice groups are outside every profile punktfunk hosts emit.
let _changing_slice_group_idc = r.read_bits(2)?;
Ok(Some(RecoveryPoint {
recovery_frame_cnt,
exact_match,
broken_link,
}))
}
/// Parse the first recovery point SEI message out of an H.265 prefix SEI NALU.
///
/// `sei_payload` are the bytes of the NALU after its TWO-byte NAL header (H.265 NALU
/// headers are 16 bits), emulation prevention still in place. Only prefix SEI NALUs
/// (type 39) can carry a recovery point — D.2.1 lists it as prefix-only, so suffix SEI
/// NALUs (type 40) need never reach here.
pub fn parse_recovery_point_hevc(sei_payload: &[u8]) -> Result<Option<RecoveryPointHevc>, String> {
let rbsp = strip_emulation_prevention(sei_payload);
let Some(payload) = first_recovery_point_payload(&rbsp)? else {
return Ok(None);
};
let mut r = BitCursor::new(payload);
let recovery_poc_cnt = r.read_se()?;
let exact_match = r.read_bit()? != 0;
let broken_link = r.read_bit()? != 0;
Ok(Some(RecoveryPointHevc {
recovery_poc_cnt,
exact_match,
broken_link,
}))
}
/// Walk the D.1 SEI message framing (shared verbatim between H.264 and H.265) and
/// return the payload bytes of the first recovery point message (payload type 6 in
/// both codecs), if any. `rbsp` is already emulation-prevention-stripped.
fn first_recovery_point_payload(rbsp: &[u8]) -> Result<Option<&[u8]>, String> {
let mut i = 0usize;
while i < rbsp.len() && !is_rbsp_trailing(rbsp, i) {
// D.1: payload type and size are ff-coded — 0xFF bytes each add 255 until a
// non-0xFF byte terminates the value. The run length is unbounded, so the type
// accumulates saturating: an adversarial ~16M-byte 0xFF run must not overflow
// (a saturated type simply never matches 6). The size accumulator is a usize
// whose use is bounds-checked below.
let mut payload_type = 0u32;
while i < rbsp.len() && rbsp[i] == 0xFF {
payload_type = payload_type.saturating_add(255);
i += 1;
}
if i >= rbsp.len() {
return Err("truncated SEI payload type".into());
}
payload_type = payload_type.saturating_add(u32::from(rbsp[i]));
i += 1;
let mut payload_size = 0usize;
while i < rbsp.len() && rbsp[i] == 0xFF {
payload_size += 255;
i += 1;
}
if i >= rbsp.len() {
return Err("truncated SEI payload size".into());
}
payload_size += usize::from(rbsp[i]);
i += 1;
let end = i
.checked_add(payload_size)
.filter(|&end| end <= rbsp.len())
.ok_or_else(|| "SEI payload overruns the NALU".to_string())?;
if payload_type == 6 {
return Ok(Some(&rbsp[i..end]));
}
i = end;
}
Ok(None)
}
/// 7.4.1: within the RBSP, `00 00 03` encodes two zero bytes; the `03` is the emulation
/// prevention byte and is dropped.
fn strip_emulation_prevention(data: &[u8]) -> Vec<u8> {
let mut out = Vec::with_capacity(data.len());
let mut zeros = 0usize;
for &byte in data {
if zeros >= 2 && byte == 0x03 {
zeros = 0;
continue;
}
zeros = if byte == 0 { zeros + 1 } else { 0 };
out.push(byte);
}
out
}
/// `more_rbsp_data()` at a byte-aligned message boundary: the remainder is trailing bits
/// iff it is the stop bit (0x80) followed by nothing but zero bytes.
fn is_rbsp_trailing(rbsp: &[u8], i: usize) -> bool {
rbsp[i] == 0x80 && rbsp[i + 1..].iter().all(|&b| b == 0)
}
/// Minimal MSB-first bit reader over an already-unescaped RBSP slice. The vendored
/// `BitReader` is `pub(crate)` to the vendored crate, so this crate carries its own.
struct BitCursor<'a> {
data: &'a [u8],
/// Position in bits from the start of `data`.
pos: usize,
}
impl<'a> BitCursor<'a> {
fn new(data: &'a [u8]) -> Self {
Self { data, pos: 0 }
}
fn read_bit(&mut self) -> Result<u32, String> {
let byte = *self
.data
.get(self.pos / 8)
.ok_or("SEI payload out of bits")?;
let bit = (byte >> (7 - self.pos % 8)) & 1;
self.pos += 1;
Ok(u32::from(bit))
}
fn read_bits(&mut self, count: usize) -> Result<u32, String> {
debug_assert!(count <= 31);
let mut out = 0u32;
for _ in 0..count {
out = (out << 1) | self.read_bit()?;
}
Ok(out)
}
/// ue(v), spec 9.1.
fn read_ue(&mut self) -> Result<u32, String> {
let mut leading_zeros = 0usize;
while self.read_bit()? == 0 {
leading_zeros += 1;
if leading_zeros > 31 {
return Err("invalid exp-Golomb code in SEI payload".into());
}
}
let suffix = self.read_bits(leading_zeros)?;
((1u32 << leading_zeros) - 1)
.checked_add(suffix)
.ok_or_else(|| "exp-Golomb value overflows u32".to_string())
}
/// se(v), spec 9.1.1: the ue(v) code point k maps to (−1)^(k+1) · ⌈k/2⌉.
fn read_se(&mut self) -> Result<i32, String> {
let k = self.read_ue()?;
let magnitude = k.div_ceil(2);
let magnitude =
i32::try_from(magnitude).map_err(|_| "exp-Golomb value overflows i32".to_string())?;
Ok(if k % 2 == 1 { magnitude } else { -magnitude })
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn a_minimal_recovery_point_message_parses_to_its_field_values() {
// Message: type 6, size 1. Payload bits: ue(0)='1', exact=0, broken=0, csg=00,
// then payload alignment '1' + zeros -> 0b1000_0100. NALU trailing 0x80.
let sei = [0x06, 0x01, 0x84, 0x80];
assert_eq!(
parse_recovery_point(&sei).unwrap(),
Some(RecoveryPoint {
recovery_frame_cnt: 0,
exact_match: false,
broken_link: false
})
);
}
#[test]
fn recovery_frame_cnt_and_both_flags_round_trip_through_the_bit_reader() {
// ue(5)='00110', exact=1, broken=1, csg=00, alignment -> 0b0011_0110 0b0100_0000.
let sei = [0x06, 0x02, 0x36, 0x40, 0x80];
assert_eq!(
parse_recovery_point(&sei).unwrap(),
Some(RecoveryPoint {
recovery_frame_cnt: 5,
exact_match: true,
broken_link: true
})
);
}
#[test]
fn earlier_messages_and_ff_coded_types_are_skipped_to_reach_the_recovery_point() {
// First message: ff-coded payload type 255 (0xFF 0x00), size 1, payload 0x55.
// Second message: type 5 (user data), size 3. Third: the recovery point.
let sei = [
0xFF, 0x00, 0x01, 0x55, // type 255
0x05, 0x03, 0xAA, 0xBB, 0xCC, // type 5
0x06, 0x01, 0x84, // recovery point
0x80,
];
assert_eq!(
parse_recovery_point(&sei).unwrap(),
Some(RecoveryPoint {
recovery_frame_cnt: 0,
exact_match: false,
broken_link: false
})
);
}
#[test]
fn emulation_prevention_bytes_inside_the_payload_are_removed_before_reading() {
// Unescaped payload (7 bytes): ue with a 22-zero prefix => recovery_frame_cnt
// 2^22-1 = 4194303, exact=1, broken=0, csg=00, alignment. Its first bytes are
// 00 00 02, which the escaper must have written as 00 00 03 02 on the wire.
let sei = [
0x06, 0x07, 0x00, 0x00, 0x03, 0x02, 0x00, 0x00, 0x04, 0x40, 0x80,
];
assert!(sei.windows(3).any(|w| w == [0x00, 0x00, 0x03]));
assert_eq!(
parse_recovery_point(&sei).unwrap(),
Some(RecoveryPoint {
recovery_frame_cnt: 4194303,
exact_match: true,
broken_link: false
})
);
}
#[test]
fn a_sei_nalu_without_a_recovery_point_yields_none_not_an_error() {
let sei = [0x05, 0x01, 0x00, 0x80];
assert_eq!(parse_recovery_point(&sei).unwrap(), None);
}
#[test]
fn a_payload_size_overrunning_the_nalu_is_a_parse_error() {
let sei = [0x06, 0x0A, 0x00];
assert!(parse_recovery_point(&sei).is_err());
}
#[test]
fn the_hevc_recovery_point_parses_its_se_coded_poc_count() {
// recovery_poc_cnt se(0) = '1', exact = 0, broken = 0, payload alignment:
// 0b1001_0000.
let sei = [0x06, 0x01, 0x90, 0x80];
assert_eq!(
parse_recovery_point_hevc(&sei).unwrap(),
Some(RecoveryPointHevc {
recovery_poc_cnt: 0,
exact_match: false,
broken_link: false
})
);
// se(-1) = '011' (ue code point 2), exact = 1, broken = 0, alignment:
// 0b0111_0100 — the negative range H.264's ue(v) syntax cannot express.
let sei = [0x06, 0x01, 0x74, 0x80];
assert_eq!(
parse_recovery_point_hevc(&sei).unwrap(),
Some(RecoveryPointHevc {
recovery_poc_cnt: -1,
exact_match: true,
broken_link: false
})
);
}
#[test]
fn the_hevc_parser_skips_earlier_messages_and_reports_absence_as_none() {
// User-data message first, then the recovery point (poc_cnt se(3): ue code
// point 5 = '00110', exact = 1, broken = 1, alignment: 0b0011_0111).
let sei = [
0x05, 0x02, 0xAA, 0xBB, // type 5
0x06, 0x01, 0x37, // recovery point
0x80,
];
assert_eq!(
parse_recovery_point_hevc(&sei).unwrap(),
Some(RecoveryPointHevc {
recovery_poc_cnt: 3,
exact_match: true,
broken_link: true
})
);
let sei = [0x05, 0x01, 0x00, 0x80];
assert_eq!(parse_recovery_point_hevc(&sei).unwrap(), None);
}
}
crates/pf-bitstream/tests/corpus_replay.rs
+232
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@@ -0,0 +1,232 @@
//! Corpus replay: walk a captured real-host stream through the planners.
//!
//! The M0 capture hook (`PUNKTFUNK_DUMP_VIDEO=<dir>` on any desktop client) writes
//! the exact decoder input of a live session — `au-<stamp>.<codec>` plus an `.idx`
//! sidecar carrying `offset len flags complete` per AU. This harness feeds those AUs
//! back through [`pf_bitstream::h264::H264Planner`] / [`pf_bitstream::h265::H265Planner`]
//! and asserts the planner survives a REAL host stream: every AU plans (bar the
//! deliberate skips), no panic, and the warnings are only the ones a clean capture may
//! legitimately produce.
//!
//! Why this exists separately from the vendored conformance vectors: those prove we
//! match the spec's own test streams, and the on-glass sessions prove the whole pipe —
//! but between the two sits "does the planner handle what OUR five host encoder
//! families actually emit", which is the question the corpus was captured to answer.
//! For HEVC this is the ONLY pre-wiring validation against real host output (the
//! client's HEVC rung is still being built), so it runs long before M3 finishes.
//!
//! Ignored by default: captures are hundreds of megabytes and live outside the repo.
//! Run one explicitly —
//!
//! ```text
//! PF_CORPUS=/path/to/au-1785970273.h265 \
//! cargo test -p pf-bitstream --test corpus_replay -- --ignored --nocapture
//! ```
//!
//! The `.idx` sidecar is found next to the data file (`<data>.idx`); the codec comes
//! from the extension, matching the capture hook's own naming convention.
use std::path::Path;
use std::path::PathBuf;
/// One captured access unit: its byte range in the data file, plus the wire bits the
/// byte stream itself cannot carry.
struct CapturedAu {
offset: usize,
len: usize,
/// The wire `flags` byte (`USER_FLAG_*`) — kept for the RFI/intra-refresh legs,
/// which discriminate on it.
_flags: u32,
complete: bool,
}
/// Parse the `.idx` sidecar: one `offset len flags complete` line per AU, `#` comments
/// and blank lines skipped (the hook writes none today, but a hand-trimmed corpus file
/// is a thing a human will produce).
///
/// A malformed FINAL line is dropped with a note instead of failing: ending a capture
/// means killing the client, so the last buffered line is routinely half-written (the
/// hook's own docs call a truncated last AU acceptable). Anywhere else a malformed line
/// means the sidecar is corrupt and the run must not quietly replay a subset.
fn read_index(path: &Path) -> Vec<CapturedAu> {
let text = std::fs::read_to_string(path)
.unwrap_or_else(|e| panic!("cannot read the index sidecar {}: {e}", path.display()));
let lines: Vec<&str> = text
.lines()
.filter(|line| !line.trim().is_empty() && !line.trim_start().starts_with('#'))
.collect();
let last = lines.len().saturating_sub(1);
let mut out = Vec::with_capacity(lines.len());
for (n, line) in lines.iter().enumerate() {
match parse_index_line(line) {
Some(au) => out.push(au),
None if n == last => {
println!("note: dropping a truncated final index line ({line:?})");
}
None => panic!("index line {n} is malformed: {line:?}"),
}
}
out
}
/// One `offset len flags complete` line, or `None` when it is not four parsable fields.
fn parse_index_line(line: &str) -> Option<CapturedAu> {
let mut it = line.split_whitespace();
let num = |raw: &str| -> Option<u64> {
match raw.strip_prefix("0x") {
Some(hex) => u64::from_str_radix(hex, 16).ok(),
None => raw.parse().ok(),
}
};
let offset = num(it.next()?)?;
let len = num(it.next()?)?;
let flags = num(it.next()?)?;
let complete = num(it.next()?)?;
Some(CapturedAu {
offset: offset as usize,
len: len as usize,
_flags: flags as u32,
complete: complete != 0,
})
}
/// The capture named by `PF_CORPUS`, or `None` when the variable is unset.
fn corpus_from_env() -> Option<(PathBuf, Vec<u8>, Vec<CapturedAu>)> {
let path = PathBuf::from(std::env::var_os("PF_CORPUS")?);
let data = std::fs::read(&path)
.unwrap_or_else(|e| panic!("cannot read the capture {}: {e}", path.display()));
let mut idx = path.clone().into_os_string();
idx.push(".idx");
let mut index = read_index(Path::new(&idx));
// Same truncation story on the data side: the final AU's bytes may not all have
// reached the file before the client died. Drop AUs the data cannot cover — but
// only from the tail, so a short file can never silently hide a middle gap.
let covered = index
.iter()
.take_while(|au| au.offset.saturating_add(au.len) <= data.len())
.count();
if covered < index.len() {
println!(
"note: dropping {} index entr{} past the end of the data file (truncated capture)",
index.len() - covered,
if index.len() - covered == 1 {
"y"
} else {
"ies"
},
);
index.truncate(covered);
}
assert!(!index.is_empty(), "the capture's index is empty");
Some((path, data, index))
}
/// Per-AU outcome tally — what the run reports and asserts on.
#[derive(Default)]
struct Tally {
planned: usize,
skipped: usize,
errors: Vec<String>,
warnings: Vec<String>,
partial: usize,
}
impl Tally {
/// A clean capture of a healthy session must plan every complete AU. Errors are
/// hard failures; warnings are printed and capped — `MissingReference` on a stream
/// that never lost a packet would mean the planner invented a gap.
fn assert_clean(&self, total: usize) {
println!(
"planned {} / skipped {} / partial-AUs-ignored {} / errors {} / warnings {} \
(of {total} captured AUs)",
self.planned,
self.skipped,
self.partial,
self.errors.len(),
self.warnings.len(),
);
for w in self.warnings.iter().take(20) {
println!(" warning: {w}");
}
for e in self.errors.iter().take(20) {
println!(" ERROR: {e}");
}
assert!(
self.errors.is_empty(),
"{} AUs failed to plan — first: {}",
self.errors.len(),
self.errors[0],
);
assert!(
self.warnings.is_empty(),
"{} planner warnings on a clean capture — first: {}",
self.warnings.len(),
self.warnings[0],
);
assert!(self.planned > 0, "no AU planned at all");
}
}
#[test]
#[ignore = "needs a capture: PF_CORPUS=<au-file> (see the module docs)"]
fn a_captured_host_stream_replays_through_the_planner() {
let Some((path, data, index)) = corpus_from_env() else {
panic!("PF_CORPUS is unset — see the module docs for the invocation");
};
let ext = path
.extension()
.and_then(|e| e.to_str())
.unwrap_or_default()
.to_owned();
println!(
"replaying {} ({} bytes, {} AUs, codec {ext})",
path.display(),
data.len(),
index.len(),
);
let mut tally = Tally::default();
// The planners take one COMPLETE AU. A partial AU (the wire's shard split) is the
// pump's business, not the planner's — count and skip rather than feed a fragment.
let complete: Vec<&CapturedAu> = index.iter().filter(|au| au.complete).collect();
tally.partial = index.len() - complete.len();
match ext.as_str() {
"h265" => {
let mut planner = pf_bitstream::h265::H265Planner::new();
for (i, au) in complete.iter().enumerate() {
let bytes = &data[au.offset..au.offset + au.len];
match planner.plan_au(bytes) {
Ok(plan) => {
tally.planned += 1;
for w in &plan.warnings {
tally.warnings.push(format!("AU {i}: {w:?}"));
}
}
// The spec's own skip (8.1.3): decode nothing, show nothing, the
// stream is healthy — never an error (the WP-2 contract note).
Err(pf_bitstream::h265::PlanError::RaslSkipped { .. }) => tally.skipped += 1,
Err(e) => tally.errors.push(format!("AU {i}: {e}")),
}
}
}
"h264" => {
let mut planner = pf_bitstream::h264::H264Planner::new();
for (i, au) in complete.iter().enumerate() {
let bytes = &data[au.offset..au.offset + au.len];
match planner.plan_au(bytes) {
Ok(plan) => {
tally.planned += 1;
for w in &plan.warnings {
tally.warnings.push(format!("AU {i}: {w:?}"));
}
}
Err(e) => tally.errors.push(format!("AU {i}: {e}")),
}
}
}
other => panic!("no planner for a .{other} capture (h264/h265 only today)"),
}
tally.assert_clean(index.len());
}
crates/pf-bitstream/vendor/cros-codecs/Cargo.toml
Vendored
+17
View File
@@ -0,0 +1,17 @@
# Vendored snapshot — see PROVENANCE.md. Deliberately NOT opted into workspace lints
# or workspace package inheritance: upstream code stays as close to pristine as the
# trim allows, so re-syncing against the AOSP tree stays a diff, not an archaeology dig.
[package]
name = "cros-codecs"
version = "0.0.5"
license = "BSD-3-Clause"
description = "Vendored cros-codecs parser layer (codec module only) for pf-bitstream"
edition = "2021"
[dependencies]
log = "0.4"
# Upstream's in-tree unit tests (kept — they are the conformance goldens) want these.
[dev-dependencies]
env_logger = "0.11"
serde_json = "1"
crates/pf-bitstream/vendor/cros-codecs/LICENSE
Vendored
+26
View File
@@ -0,0 +1,26 @@
Copyright 2022 The ChromiumOS Authors
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
crates/pf-bitstream/vendor/cros-codecs/PROVENANCE.md
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# Vendored: cros-codecs (parser layer only)
- **Upstream:** <https://android.googlesource.com/platform/system/cros-codecs/> (the
authoritative AOSP tree). Snapshot taken from the read-only GitHub mirror
<https://github.com/chromeos/cros-codecs>, branch `main`,
commit **`5ff6d693ffae0b36935b8fc13092c733b4c2646f`**, fetched 2026-08-05.
- **License:** BSD-3-Clause (`LICENSE`, copied verbatim). Attribution headers retained
in every source file.
- **Why vendored, not a crates.io dependency:** the GitHub repo is a read-only mirror
and the crates.io release lags it; a pinned, reviewed snapshot is the supply-chain
posture punktfunk already uses elsewhere (`clients/android/native/vendor/ndk`,
`punktfunk-host/vendor/usbip-sim`). Decision of record:
punktfunk-planning `design/client-native-decode.md` §8.1.
## What was taken
`src/codec/{h264,h265,av1,vp9}` (parsers, DPBs, picture types, NALU/OBU machinery,
their `test_data` vectors — they double as punktfunk's conformance corpus),
`src/bitstream_utils.rs`, `LICENSE`. Upstream designed the `codec` module for exactly
this extraction — its module doc: "There shall be no dependencies from other modules of
this crate to this module, so that it can be turned into a crate of its own if needed
in the future."
## What was left behind
- `decoder/`, `encoder/`, `backend/`, `c2_wrapper/`, `video_frame`, `image_processing`,
`utils` — the Linux-only halves (libva/v4l2/gbm/nix). punktfunk's `pf-bitstream` +
`pf-vkdecode` occupy that layer.
- `codec/vp8` — VP9 has no dependency on it (verified) and no punktfunk host will ever
emit VP8.
## Deviations from pristine upstream
1. `src/lib.rs` — rewritten: keeps only the module decls and `Resolution` /
`ResolutionRoundMode` (the sole root items `codec` references), both copied verbatim;
adds crate-level `#![allow(clippy::all, mismatched_lifetime_syntaxes)]` — vendored
code is not held to the workspace lint bar (CI's `-D warnings` legs would fail on
upstream style otherwise).
2. `src/codec.rs` — one line removed (`pub mod vp8;`).
3. `Cargo.toml` — rewritten: `log` is the only dependency the vendored subset needs,
plus `env_logger`/`serde_json` dev-dependencies for upstream's in-tree tests.
4. `cargo fmt` normalization under the workspace's rustfmt config (mechanical only).
5. **Zero-unsafe, enforced**: `#![forbid(unsafe_code)]` added to lib.rs. Upstream's codec
module had exactly one production `unsafe` (h264/dpb.rs `build_ref_pic_lists`: ref→index
via pointer `offset_from`) — replaced with a safe `position(ptr::eq)` over the ≤16-entry
DPB — and three test-only `mem::zeroed()` asserts, replaced with `Default::default()`
(`PredWeightTable` derives `Default`; all-integer struct, identical value). The layer
facing untrusted bytes is now compiler-verified free of unsafe — the property that
motivates replacing libavcodec's C parsers in the first place.
6. `src/codec/h264/picture.rs` — `PictureData::new_from_slice`: `display_resolution`
computed as `visible_rect.max` instead of `max - min`. `Sps::visible_rectangle()`
returns the crop offset in `min` and the visible *size* in `max` (see its
definition: `max.x = width - crop_left - crop_right`); upstream's subtraction
double-counts the left/top crop and, worse, panics on u32 underflow for a
large-but-parser-valid `frame_crop_left_offset` (e.g. 100 crop units on a 320-wide
SPS). Found by pf-bitstream's conformance-window tests; upstream never hits it
because real encoders crop right/bottom only. **Reported upstream 2026-08-06:
<https://github.com/chromeos/cros-codecs/issues/99>.**
7. `src/codec/h265/parser.rs` — `parse_slice_header`: reject
`num_long_term_sps + num_long_term_pics > 16` before the long-term RPS loop.
Upstream bounds the pair only by `MAX_LONG_TERM_REF_PIC_SETS` (32) combined, while
every long-term array in `SliceHeader` (`poc_lsb_lt`, `used_by_curr_pic_lt`,
`delta_poc_msb_present_flag`, `delta_poc_msb_cycle_lt`, `lt_idx_sps`) is `[_; 16]`
— a hostile slice header with 17+ entries panics the parser with an
index-out-of-bounds (bounds checks stay on in release). Found by pf-bitstream's
H.265 planner review; regression-tested there
(`a_hostile_long_term_count_is_a_parse_error_not_a_panic`). **Reported upstream
2026-08-06: <https://github.com/chromeos/cros-codecs/issues/100>.**
Re-sync procedure: fetch the AOSP tree, re-apply this trim, diff `codec/` +
`bitstream_utils.rs` (expect near-zero conflicts), update the commit pin above.
crates/pf-bitstream/vendor/cros-codecs/src/bitstream_utils.rs
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// Copyright 2024 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::borrow::Cow;
use std::fmt;
use std::io::Cursor;
use std::io::Read;
use std::io::Seek;
use std::io::SeekFrom;
use std::io::Write;
use std::marker::PhantomData;
use crate::codec::h264::parser::Nalu as H264Nalu;
use crate::codec::h265::parser::Nalu as H265Nalu;
/// A bit reader for codec bitstreams. It properly handles emulation-prevention
/// bytes and stop bits for H264.
#[derive(Clone)]
pub(crate) struct BitReader<'a> {
/// A reference into the next unread byte in the stream.
data: Cursor<&'a [u8]>,
/// Contents of the current byte. First unread bit starting at position 8 -
/// num_remaining_bits_in_curr_bytes.
curr_byte: u8,
/// Number of bits remaining in `curr_byte`
num_remaining_bits_in_curr_byte: usize,
/// Used in emulation prevention byte detection.
prev_two_bytes: u16,
/// Number of emulation prevention bytes (i.e. 0x000003) we found.
num_epb: usize,
/// Whether or not we need emulation prevention logic.
needs_epb: bool,
/// How many bits have been read so far.
position: u64,
}
#[derive(Debug)]
pub(crate) enum GetByteError {
OutOfBits,
}
impl fmt::Display for GetByteError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "reader ran out of bits")
}
}
#[derive(Debug)]
pub(crate) enum ReadBitsError {
TooManyBitsRequested(usize),
GetByte(GetByteError),
ConversionFailed,
}
impl fmt::Display for ReadBitsError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
ReadBitsError::TooManyBitsRequested(bits) => {
write!(f, "more than 31 ({}) bits were requested", bits)
}
ReadBitsError::GetByte(_) => write!(f, "failed to advance the current byte"),
ReadBitsError::ConversionFailed => {
write!(f, "failed to convert read input to target type")
}
}
}
}
impl From<GetByteError> for ReadBitsError {
fn from(err: GetByteError) -> Self {
ReadBitsError::GetByte(err)
}
}
impl<'a> BitReader<'a> {
pub fn new(data: &'a [u8], needs_epb: bool) -> Self {
Self {
data: Cursor::new(data),
curr_byte: Default::default(),
num_remaining_bits_in_curr_byte: Default::default(),
prev_two_bytes: 0xffff,
num_epb: Default::default(),
needs_epb: needs_epb,
position: 0,
}
}
/// Read a single bit from the stream.
pub fn read_bit(&mut self) -> Result<bool, String> {
let bit = self.read_bits::<u32>(1)?;
match bit {
1 => Ok(true),
0 => Ok(false),
_ => panic!("Unexpected value {}", bit),
}
}
/// Read up to 31 bits from the stream. Note that we don't want to read 32
/// bits even though we're returning a u32 because that would break the
/// read_bits_signed() function. 31 bits should be overkill for compressed
/// header parsing anyway.
pub fn read_bits<U: TryFrom<u32>>(&mut self, num_bits: usize) -> Result<U, String> {
if num_bits > 31 {
return Err(ReadBitsError::TooManyBitsRequested(num_bits).to_string());
}
let mut bits_left = num_bits;
let mut out = 0u32;
while self.num_remaining_bits_in_curr_byte < bits_left {
out |= (self.curr_byte as u32) << (bits_left - self.num_remaining_bits_in_curr_byte);
bits_left -= self.num_remaining_bits_in_curr_byte;
self.move_to_next_byte().map_err(|err| err.to_string())?;
}
out |= (self.curr_byte >> (self.num_remaining_bits_in_curr_byte - bits_left)) as u32;
out &= (1 << num_bits) - 1;
self.num_remaining_bits_in_curr_byte -= bits_left;
self.position += num_bits as u64;
U::try_from(out).map_err(|_| ReadBitsError::ConversionFailed.to_string())
}
/// Reads a two's complement signed integer of length |num_bits|.
pub fn read_bits_signed<U: TryFrom<i32>>(&mut self, num_bits: usize) -> Result<U, String> {
let mut out: i32 = self
.read_bits::<u32>(num_bits)?
.try_into()
.map_err(|_| ReadBitsError::ConversionFailed.to_string())?;
if out >> (num_bits - 1) != 0 {
out |= -1i32 ^ ((1 << num_bits) - 1);
}
U::try_from(out).map_err(|_| ReadBitsError::ConversionFailed.to_string())
}
/// Reads an unsigned integer from the stream and checks if the stream is byte aligned.
pub fn read_bits_aligned<U: TryFrom<u32>>(&mut self, num_bits: usize) -> Result<U, String> {
if self.num_remaining_bits_in_curr_byte % 8 != 0 {
return Err("Attempted unaligned read_le()".into());
}
Ok(self.read_bits(num_bits).map_err(|err| err.to_string())?)
}
/// Skip `num_bits` bits from the stream.
pub fn skip_bits(&mut self, mut num_bits: usize) -> Result<(), String> {
while num_bits > 0 {
let n = std::cmp::min(num_bits, 31);
self.read_bits::<u32>(n)?;
num_bits -= n;
}
Ok(())
}
/// Returns the amount of bits left in the stream
pub fn num_bits_left(&mut self) -> usize {
let cur_pos = self.data.position();
// This should always be safe to unwrap.
let end_pos = self.data.seek(SeekFrom::End(0)).unwrap();
let _ = self.data.seek(SeekFrom::Start(cur_pos));
((end_pos - cur_pos) as usize) * 8 + self.num_remaining_bits_in_curr_byte
}
/// Returns the number of emulation-prevention bytes read so far.
pub fn num_epb(&self) -> usize {
self.num_epb
}
/// Whether the stream still has RBSP data. Implements more_rbsp_data(). See
/// the spec for more details.
pub fn has_more_rsbp_data(&mut self) -> bool {
if self.num_remaining_bits_in_curr_byte == 0 && self.move_to_next_byte().is_err() {
// no more data at all in the rbsp
return false;
}
// If the next bit is the stop bit, then we should only see unset bits
// until the end of the data.
if (self.curr_byte & ((1 << (self.num_remaining_bits_in_curr_byte - 1)) - 1)) != 0 {
return true;
}
let mut buf = [0u8; 1];
let orig_pos = self.data.position();
while let Ok(_) = self.data.read_exact(&mut buf) {
if buf[0] != 0 {
self.data.set_position(orig_pos);
return true;
}
}
false
}
/// Reads an Unsigned Exponential golomb coding number from the next bytes in the
/// bitstream. This may advance the state of position within the bitstream even if the
/// read operation is unsuccessful. See H264 Annex B specification 9.1 for details.
pub fn read_ue<U: TryFrom<u32>>(&mut self) -> Result<U, String> {
let mut num_bits = 0;
while self.read_bits::<u32>(1)? == 0 {
num_bits += 1;
if num_bits > 31 {
return Err("invalid stream".into());
}
}
let value = ((1u32 << num_bits) - 1)
.checked_add(self.read_bits::<u32>(num_bits)?)
.ok_or::<String>("read number cannot fit in 32 bits".into())?;
U::try_from(value).map_err(|_| "conversion error".into())
}
pub fn read_ue_bounded<U: TryFrom<u32>>(&mut self, min: u32, max: u32) -> Result<U, String> {
let ue = self.read_ue()?;
if ue > max || ue < min {
Err(format!(
"Value out of bounds: expected {} - {}, got {}",
min, max, ue
))
} else {
Ok(U::try_from(ue).map_err(|_| String::from("Conversion error"))?)
}
}
pub fn read_ue_max<U: TryFrom<u32>>(&mut self, max: u32) -> Result<U, String> {
self.read_ue_bounded(0, max)
}
/// Reads a signed exponential golomb coding number. Instead of using two's
/// complement, this scheme maps even integers to positive numbers and odd
/// integers to negative numbers. The least significant bit indicates the
/// sign. See H264 Annex B specification 9.1.1 for details.
pub fn read_se<U: TryFrom<i32>>(&mut self) -> Result<U, String> {
let ue = self.read_ue::<u32>()? as i32;
if ue % 2 == 0 {
Ok(U::try_from(-(ue / 2)).map_err(|_| String::from("Conversion error"))?)
} else {
Ok(U::try_from(ue / 2 + 1).map_err(|_| String::from("Conversion error"))?)
}
}
pub fn read_se_bounded<U: TryFrom<i32>>(&mut self, min: i32, max: i32) -> Result<U, String> {
let se = self.read_se()?;
if se < min || se > max {
Err(format!(
"Value out of bounds, expected between {}-{}, got {}",
min, max, se
))
} else {
Ok(U::try_from(se).map_err(|_| String::from("Conversion error"))?)
}
}
/// Read little endian multi-byte integer.
pub fn read_le<U: TryFrom<u32>>(&mut self, num_bits: u8) -> Result<U, String> {
let mut t = 0;
for i in 0..num_bits {
let byte = self.read_bits_aligned::<u32>(8)?;
t += byte << (i * 8)
}
Ok(U::try_from(t).map_err(|_| String::from("Conversion error"))?)
}
/// Return the position of this bitstream in bits.
pub fn position(&self) -> u64 {
self.position
}
fn get_byte(&mut self) -> Result<u8, GetByteError> {
let mut buf = [0u8; 1];
self.data
.read_exact(&mut buf)
.map_err(|_| GetByteError::OutOfBits)?;
Ok(buf[0])
}
fn move_to_next_byte(&mut self) -> Result<(), GetByteError> {
let mut byte = self.get_byte()?;
if self.needs_epb {
if self.prev_two_bytes == 0 && byte == 0x03 {
// We found an epb
self.num_epb += 1;
// Read another byte
byte = self.get_byte()?;
// We need another 3 bytes before another epb can happen.
self.prev_two_bytes = 0xffff;
}
self.prev_two_bytes = (self.prev_two_bytes << 8) | u16::from(byte);
}
self.num_remaining_bits_in_curr_byte = 8;
self.curr_byte = byte;
Ok(())
}
}
/// Iterator over IVF packets.
pub struct IvfIterator<'a> {
cursor: Cursor<&'a [u8]>,
}
impl<'a> IvfIterator<'a> {
pub fn new(data: &'a [u8]) -> Self {
let mut cursor = Cursor::new(data);
// Skip the IVH header entirely.
cursor.seek(std::io::SeekFrom::Start(32)).unwrap();
Self { cursor }
}
}
impl<'a> Iterator for IvfIterator<'a> {
type Item = &'a [u8];
fn next(&mut self) -> Option<Self::Item> {
// Make sure we have a header.
let mut len_buf = [0u8; 4];
self.cursor.read_exact(&mut len_buf).ok()?;
let len = ((len_buf[3] as usize) << 24)
| ((len_buf[2] as usize) << 16)
| ((len_buf[1] as usize) << 8)
| (len_buf[0] as usize);
// Skip PTS.
self.cursor.seek(std::io::SeekFrom::Current(8)).ok()?;
let start = self.cursor.position() as usize;
let _ = self
.cursor
.seek(std::io::SeekFrom::Current(len as i64))
.ok()?;
let end = self.cursor.position() as usize;
Some(&self.cursor.get_ref()[start..end])
}
}
/// Helper struct for synthesizing IVF file header
pub struct IvfFileHeader {
pub magic: [u8; 4],
pub version: u16,
pub header_size: u16,
pub codec: [u8; 4],
pub width: u16,
pub height: u16,
pub framerate: u32,
pub timescale: u32,
pub frame_count: u32,
pub unused: u32,
}
impl Default for IvfFileHeader {
fn default() -> Self {
Self {
magic: Self::MAGIC,
version: 0,
header_size: 32,
codec: Self::CODEC_VP9,
width: 320,
height: 240,
framerate: 1,
timescale: 1000,
frame_count: 1,
unused: Default::default(),
}
}
}
impl IvfFileHeader {
pub const MAGIC: [u8; 4] = *b"DKIF";
pub const CODEC_VP8: [u8; 4] = *b"VP80";
pub const CODEC_VP9: [u8; 4] = *b"VP90";
pub const CODEC_AV1: [u8; 4] = *b"AV01";
pub fn new(codec: [u8; 4], width: u16, height: u16, framerate: u32, frame_count: u32) -> Self {
let default = Self::default();
Self {
codec,
width,
height,
framerate: framerate * default.timescale,
frame_count,
..default
}
}
}
impl IvfFileHeader {
/// Writes header into writer
pub fn writo_into(&self, writer: &mut impl std::io::Write) -> std::io::Result<()> {
writer.write_all(&self.magic)?;
writer.write_all(&self.version.to_le_bytes())?;
writer.write_all(&self.header_size.to_le_bytes())?;
writer.write_all(&self.codec)?;
writer.write_all(&self.width.to_le_bytes())?;
writer.write_all(&self.height.to_le_bytes())?;
writer.write_all(&self.framerate.to_le_bytes())?;
writer.write_all(&self.timescale.to_le_bytes())?;
writer.write_all(&self.frame_count.to_le_bytes())?;
writer.write_all(&self.unused.to_le_bytes())?;
Ok(())
}
}
/// Helper struct for synthesizing IVF frame header
pub struct IvfFrameHeader {
pub frame_size: u32,
pub timestamp: u64,
}
impl IvfFrameHeader {
/// Writes header into writer
pub fn writo_into(&self, writer: &mut impl std::io::Write) -> std::io::Result<()> {
writer.write_all(&self.frame_size.to_le_bytes())?;
writer.write_all(&self.timestamp.to_le_bytes())?;
Ok(())
}
}
/// Iterator NALUs in a bitstream.
pub struct NalIterator<'a, Nalu>(Cursor<&'a [u8]>, PhantomData<Nalu>);
impl<'a, Nalu> NalIterator<'a, Nalu> {
pub fn new(stream: &'a [u8]) -> Self {
Self(Cursor::new(stream), PhantomData)
}
}
impl<'a> Iterator for NalIterator<'a, H264Nalu<'a>> {
type Item = Cow<'a, [u8]>;
fn next(&mut self) -> Option<Self::Item> {
H264Nalu::next(&mut self.0).map(|n| n.data).ok()
}
}
impl<'a> Iterator for NalIterator<'a, H265Nalu<'a>> {
type Item = Cow<'a, [u8]>;
fn next(&mut self) -> Option<Self::Item> {
H265Nalu::next(&mut self.0).map(|n| n.data).ok()
}
}
#[derive(Debug)]
pub enum BitWriterError {
InvalidBitCount,
Io(std::io::Error),
}
impl fmt::Display for BitWriterError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
BitWriterError::InvalidBitCount => write!(f, "invalid bit count"),
BitWriterError::Io(x) => write!(f, "{}", x.to_string()),
}
}
}
impl From<std::io::Error> for BitWriterError {
fn from(err: std::io::Error) -> Self {
BitWriterError::Io(err)
}
}
pub type BitWriterResult<T> = std::result::Result<T, BitWriterError>;
pub struct BitWriter<W: Write> {
out: W,
nth_bit: u8,
curr_byte: u8,
}
impl<W: Write> BitWriter<W> {
pub fn new(writer: W) -> Self {
Self {
out: writer,
curr_byte: 0,
nth_bit: 0,
}
}
/// Writes fixed bit size integer (up to 32 bit)
pub fn write_f<T: Into<u32>>(&mut self, bits: usize, value: T) -> BitWriterResult<usize> {
let value = value.into();
if bits > 32 {
return Err(BitWriterError::InvalidBitCount);
}
let mut written = 0;
for bit in (0..bits).rev() {
let bit = (1 << bit) as u32;
self.write_bit((value & bit) == bit)?;
written += 1;
}
Ok(written)
}
/// Takes a single bit that will be outputed to [`std::io::Write`]
pub fn write_bit(&mut self, bit: bool) -> BitWriterResult<()> {
self.curr_byte |= (bit as u8) << (7u8 - self.nth_bit);
self.nth_bit += 1;
if self.nth_bit == 8 {
self.out.write_all(&[self.curr_byte])?;
self.nth_bit = 0;
self.curr_byte = 0;
}
Ok(())
}
/// Immediately outputs any cached bits to [`std::io::Write`]
pub fn flush(&mut self) -> BitWriterResult<()> {
if self.nth_bit != 0 {
self.out.write_all(&[self.curr_byte])?;
self.nth_bit = 0;
self.curr_byte = 0;
}
self.out.flush()?;
Ok(())
}
/// Returns `true` if ['Self`] hold data that wasn't written to [`std::io::Write`]
pub fn has_data_pending(&self) -> bool {
self.nth_bit != 0
}
pub(crate) fn inner(&self) -> &W {
&self.out
}
pub(crate) fn inner_mut(&mut self) -> &mut W {
&mut self.out
}
}
impl<W: Write> Drop for BitWriter<W> {
fn drop(&mut self) {
if let Err(e) = self.flush() {
log::error!("Unable to flush bits {e:?}");
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_ivf_file_header() {
let mut hdr = IvfFileHeader {
version: 0,
codec: IvfFileHeader::CODEC_VP9,
width: 256,
height: 256,
framerate: 30_000,
timescale: 1_000,
frame_count: 1,
..Default::default()
};
let mut buf = Vec::new();
hdr.writo_into(&mut buf).unwrap();
const EXPECTED: [u8; 32] = [
0x44, 0x4b, 0x49, 0x46, 0x00, 0x00, 0x20, 0x00, 0x56, 0x50, 0x39, 0x30, 0x00, 0x01,
0x00, 0x01, 0x30, 0x75, 0x00, 0x00, 0xe8, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
];
assert_eq!(&buf, &EXPECTED);
hdr.width = 1920;
hdr.height = 800;
hdr.framerate = 24;
hdr.timescale = 1;
hdr.frame_count = 100;
buf.clear();
hdr.writo_into(&mut buf).unwrap();
const EXPECTED2: [u8; 32] = [
0x44, 0x4b, 0x49, 0x46, 0x00, 0x00, 0x20, 0x00, 0x56, 0x50, 0x39, 0x30, 0x80, 0x07,
0x20, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
];
assert_eq!(&buf, &EXPECTED2);
}
#[test]
fn test_ivf_frame_header() {
let mut hdr = IvfFrameHeader {
frame_size: 199249,
timestamp: 0,
};
let mut buf = Vec::new();
hdr.writo_into(&mut buf).unwrap();
const EXPECTED: [u8; 12] = [
0x51, 0x0a, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
];
assert_eq!(&buf, &EXPECTED);
hdr.timestamp = 1;
hdr.frame_size = 52;
buf.clear();
hdr.writo_into(&mut buf).unwrap();
const EXPECTED2: [u8; 12] = [
0x34, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
];
assert_eq!(&buf, &EXPECTED2);
}
#[test]
fn test_bitwriter_f1() {
let mut buf = Vec::<u8>::new();
{
let mut writer = BitWriter::new(&mut buf);
writer.write_f(1, true).unwrap();
writer.write_f(1, false).unwrap();
writer.write_f(1, false).unwrap();
writer.write_f(1, false).unwrap();
writer.write_f(1, true).unwrap();
writer.write_f(1, true).unwrap();
writer.write_f(1, true).unwrap();
writer.write_f(1, true).unwrap();
}
assert_eq!(buf, vec![0b10001111u8]);
}
#[test]
fn test_bitwriter_f3() {
let mut buf = Vec::<u8>::new();
{
let mut writer = BitWriter::new(&mut buf);
writer.write_f(3, 0b100u8).unwrap();
writer.write_f(3, 0b101u8).unwrap();
writer.write_f(3, 0b011u8).unwrap();
}
assert_eq!(buf, vec![0b10010101u8, 0b10000000u8]);
}
#[test]
fn test_bitwriter_f4() {
let mut buf = Vec::<u8>::new();
{
let mut writer = BitWriter::new(&mut buf);
writer.write_f(4, 0b1000u8).unwrap();
writer.write_f(4, 0b1011u8).unwrap();
}
assert_eq!(buf, vec![0b10001011u8]);
}
// These tests are adapted from the chromium tests at media/video/h264_bit_reader_unitttest.cc
#[test]
fn read_stream_without_escape_and_trailing_zero_bytes() {
const RBSP: [u8; 6] = [0x01, 0x23, 0x45, 0x67, 0x89, 0xa0];
let mut reader = BitReader::new(&RBSP, true);
assert_eq!(reader.read_bits::<u32>(1).unwrap(), 0);
assert_eq!(reader.num_bits_left(), 47);
assert!(reader.has_more_rsbp_data());
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x02);
assert_eq!(reader.num_bits_left(), 39);
assert!(reader.has_more_rsbp_data());
assert_eq!(reader.read_bits::<u32>(31).unwrap(), 0x23456789);
assert_eq!(reader.num_bits_left(), 8);
assert!(reader.has_more_rsbp_data());
assert_eq!(reader.read_bits::<u32>(1).unwrap(), 1);
assert_eq!(reader.num_bits_left(), 7);
assert!(reader.has_more_rsbp_data());
assert_eq!(reader.read_bits::<u32>(1).unwrap(), 0);
assert_eq!(reader.num_bits_left(), 6);
assert!(!reader.has_more_rsbp_data());
}
#[test]
fn single_byte_stream() {
const RBSP: [u8; 1] = [0x18];
let mut reader = BitReader::new(&RBSP, true);
assert_eq!(reader.num_bits_left(), 8);
assert!(reader.has_more_rsbp_data());
assert_eq!(reader.read_bits::<u32>(4).unwrap(), 1);
assert!(!reader.has_more_rsbp_data());
}
#[test]
fn stop_bit_occupy_full_byte() {
const RBSP: [u8; 2] = [0xab, 0x80];
let mut reader = BitReader::new(&RBSP, true);
assert_eq!(reader.num_bits_left(), 16);
assert!(reader.has_more_rsbp_data());
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0xab);
assert_eq!(reader.num_bits_left(), 8);
assert!(!reader.has_more_rsbp_data());
}
// Check that read_ue behaves properly with input at the limits.
#[test]
fn read_ue() {
// Regular value.
let mut reader = BitReader::new(&[0b0001_1010], true);
assert_eq!(reader.read_ue::<u32>().unwrap(), 12);
assert_eq!(reader.data.position(), 1);
assert_eq!(reader.num_remaining_bits_in_curr_byte, 1);
// 0 value.
let mut reader = BitReader::new(&[0b1000_0000], true);
assert_eq!(reader.read_ue::<u32>().unwrap(), 0);
assert_eq!(reader.data.position(), 1);
assert_eq!(reader.num_remaining_bits_in_curr_byte, 7);
// No prefix stop bit.
let mut reader = BitReader::new(&[0b0000_0000], true);
reader.read_ue::<u32>().unwrap_err();
// u32 max value: 31 0-bits, 1 bit marker, 31 bits 1-bits.
let mut reader = BitReader::new(
&[
0b0000_0000,
0b0000_0000,
0b0000_0000,
0b0000_0001,
0b1111_1111,
0b1111_1111,
0b1111_1111,
0b1111_1110,
],
true,
);
assert_eq!(reader.read_ue::<u32>().unwrap(), 0xffff_fffe);
assert_eq!(reader.data.position(), 8);
assert_eq!(reader.num_remaining_bits_in_curr_byte, 1);
}
// Check that emulation prevention is being handled correctly.
#[test]
fn skip_epb_when_enabled() {
let mut reader = BitReader::new(&[0x00, 0x00, 0x03, 0x01], false);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x00);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x00);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x03);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x01);
let mut reader = BitReader::new(&[0x00, 0x00, 0x03, 0x01], true);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x00);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x00);
assert_eq!(reader.read_bits::<u32>(8).unwrap(), 0x01);
}
#[test]
fn read_signed_bits() {
let mut reader = BitReader::new(&[0b1111_0000], false);
assert_eq!(reader.read_bits_signed::<i32>(4).unwrap(), -1);
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec.rs
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// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//! Parsers for various kinds of encoded streams.
//!
//! This module does not provide any actual decoding tools - that's the job of the
//! [crate::decoder] module. However the parsers of this module are heavily used in order to
//! implement stateless decoding.
//!
//! There shall be no dependencies from other modules of this crate to this module, so that it
//! can be turned into a crate of its own if needed in the future.
pub mod av1;
pub mod h264;
pub mod h265;
pub mod vp9;
crates/pf-bitstream/vendor/cros-codecs/src/codec/av1.rs
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// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
mod helpers;
pub mod parser;
pub mod reader;
pub mod synthesizer;
pub mod writer;
crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/helpers.rs
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// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use crate::codec::av1::parser::NUM_REF_FRAMES;
const DIV_LUT: [i32; 257] = [
16384, 16320, 16257, 16194, 16132, 16070, 16009, 15948, 15888, 15828, 15768, 15709, 15650,
15592, 15534, 15477, 15420, 15364, 15308, 15252, 15197, 15142, 15087, 15033, 14980, 14926,
14873, 14821, 14769, 14717, 14665, 14614, 14564, 14513, 14463, 14413, 14364, 14315, 14266,
14218, 14170, 14122, 14075, 14028, 13981, 13935, 13888, 13843, 13797, 13752, 13707, 13662,
13618, 13574, 13530, 13487, 13443, 13400, 13358, 13315, 13273, 13231, 13190, 13148, 13107,
13066, 13026, 12985, 12945, 12906, 12866, 12827, 12788, 12749, 12710, 12672, 12633, 12596,
12558, 12520, 12483, 12446, 12409, 12373, 12336, 12300, 12264, 12228, 12193, 12157, 12122,
12087, 12053, 12018, 11984, 11950, 11916, 11882, 11848, 11815, 11782, 11749, 11716, 11683,
11651, 11619, 11586, 11555, 11523, 11491, 11460, 11429, 11398, 11367, 11336, 11305, 11275,
11245, 11215, 11185, 11155, 11125, 11096, 11067, 11038, 11009, 10980, 10951, 10923, 10894,
10866, 10838, 10810, 10782, 10755, 10727, 10700, 10673, 10645, 10618, 10592, 10565, 10538,
10512, 10486, 10460, 10434, 10408, 10382, 10356, 10331, 10305, 10280, 10255, 10230, 10205,
10180, 10156, 10131, 10107, 10082, 10058, 10034, 10010, 9986, 9963, 9939, 9916, 9892, 9869,
9846, 9823, 9800, 9777, 9754, 9732, 9709, 9687, 9664, 9642, 9620, 9598, 9576, 9554, 9533, 9511,
9489, 9468, 9447, 9425, 9404, 9383, 9362, 9341, 9321, 9300, 9279, 9259, 9239, 9218, 9198, 9178,
9158, 9138, 9118, 9098, 9079, 9059, 9039, 9020, 9001, 8981, 8962, 8943, 8924, 8905, 8886, 8867,
8849, 8830, 8812, 8793, 8775, 8756, 8738, 8720, 8702, 8684, 8666, 8648, 8630, 8613, 8595, 8577,
8560, 8542, 8525, 8508, 8490, 8473, 8456, 8439, 8422, 8405, 8389, 8372, 8355, 8339, 8322, 8306,
8289, 8273, 8257, 8240, 8224, 8208, 8192,
];
const DIV_LUT_BITS: u32 = 8;
const DIV_LUT_PREC_BITS: u32 = 14;
/// Implements FloorLog2(x), which is defined to be the floor of the base 2
/// logarithm of the input x.
///
/// The input x will always be an integer, and will always be greater than or equal to 1.
/// This function extracts the location of the most significant bit in x.
pub fn floor_log2(mut x: u32) -> u32 {
assert!(x > 0);
let mut s = 0;
while x != 0 {
x >>= 1;
s += 1;
}
s - 1
}
/// Implements 5.9.3. Get relative distance function
pub fn get_relative_dist(enable_order_hint: bool, order_hint_bits: i32, a: i32, b: i32) -> i32 {
if !enable_order_hint {
0
} else {
let diff = a - b;
let m = 1 << (order_hint_bits - 1);
(diff & (m - 1)) - (diff & m)
}
}
/// Implements find_latest_backward from section 7.8.
pub fn find_latest_backward(
shifted_order_hints: &[i32; NUM_REF_FRAMES],
used_frame: &[bool; NUM_REF_FRAMES],
cur_frame_hint: i32,
latest_order_hint: &mut i32,
) -> i32 {
let mut _ref = -1;
for i in 0..NUM_REF_FRAMES {
let hint = shifted_order_hints[i];
if !used_frame[i] && hint >= cur_frame_hint && (_ref < 0 || hint >= *latest_order_hint) {
_ref = i as i32;
*latest_order_hint = hint;
}
}
_ref
}
/// Implements find_earliest_backward from section 7.8.
pub fn find_earliest_backward(
shifted_order_hints: &[i32; NUM_REF_FRAMES],
used_frame: &[bool; NUM_REF_FRAMES],
cur_frame_hint: i32,
earliest_order_hint: &mut i32,
) -> i32 {
let mut _ref = -1;
for i in 0..NUM_REF_FRAMES {
let hint = shifted_order_hints[i];
if !used_frame[i] && hint >= cur_frame_hint && (_ref < 0 || hint < *earliest_order_hint) {
_ref = i as i32;
*earliest_order_hint = hint;
}
}
_ref
}
/// Implements find_latest_forward from section 7.8.
pub fn find_latest_forward(
shifted_order_hints: &[i32; NUM_REF_FRAMES],
used_frame: &[bool; NUM_REF_FRAMES],
cur_frame_hint: i32,
latest_order_hint: &mut i32,
) -> i32 {
let mut _ref = -1;
for i in 0..NUM_REF_FRAMES {
let hint = shifted_order_hints[i];
if !used_frame[i] && hint < cur_frame_hint && (_ref < 0 || hint >= *latest_order_hint) {
_ref = i as i32;
*latest_order_hint = hint;
}
}
_ref
}
pub fn tile_log2(blk_size: u32, target: u32) -> u32 {
let mut k = 0;
while (blk_size << k) < target {
k += 1;
}
k
}
pub fn clip3(x: i32, y: i32, z: i32) -> i32 {
if z < x {
x
} else if z > y {
y
} else {
z
}
}
/// 5.9.29
pub fn inverse_recenter(r: i32, v: i32) -> i32 {
if v > 2 * r {
v
} else if v & 1 != 0 {
r - ((v + 1) >> 1)
} else {
r + (v >> 1)
}
}
/// Implements Round2. See 4.7: mathematical functions.
pub fn round2(x: u32, n: u32) -> u32 {
(x + 2u32.pow(n - 1)) / 2u32.pow(n)
}
/// Implements Round2Signed. See 4.7: mathematical functions.
pub fn round2signed(x: i32, n: u32) -> Result<i32, String> {
if x >= 0 {
i32::try_from(round2(x as u32, n)).map_err(|e| e.to_string())
} else {
let x = x as i64;
let val = i32::try_from(round2(-x as u32, n)).map_err(|e| e.to_string())?;
Ok(-val)
}
}
/// Implements 7.11.3.7. Resolve divisor process
pub fn resolve_divisor(d: i32) -> Result<(u32, i32), String> {
let abs_d = u32::try_from(d.abs()).unwrap(); // abs cannot return a negative
let n = floor_log2(abs_d);
let e = abs_d - (1 << n);
let f = if n > DIV_LUT_BITS {
round2(e, n - DIV_LUT_BITS)
} else {
e << (DIV_LUT_BITS - n)
};
let div_shift = n + DIV_LUT_PREC_BITS;
let div_factor = if d < 0 {
-DIV_LUT[f as usize]
} else {
DIV_LUT[f as usize]
};
Ok((div_shift, div_factor))
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/parser.rs
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crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/reader.rs
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// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use crate::bitstream_utils::BitReader;
use crate::codec::av1::helpers;
use super::parser::AnnexBState;
pub(crate) struct Reader<'a>(pub BitReader<'a>);
impl<'a> Reader<'a> {
pub fn new(data: &'a [u8]) -> Self {
Self(BitReader::new(data, false))
}
/// Implements uvlc(): Variable length unsigned n-bit number appearing
/// directly in the bitstream. See 4.10.3
pub fn read_uvlc(&mut self) -> Result<u32, String> {
let mut leading_zeroes = 0;
loop {
let done = self.0.read_bit()?;
if done {
break;
}
leading_zeroes += 1;
}
if leading_zeroes >= 32 {
return Ok(u32::MAX);
}
let value = self.0.read_bits::<u32>(leading_zeroes)?;
Ok(value + (1 << leading_zeroes) - 1)
}
/// Implements leb128(): Unsigned integer represented by a variable number
/// of little-endian bytes. See 4.10.5
pub fn read_leb128(&mut self) -> Result<u32, String> {
let mut value = 0u64;
for i in 0..8 {
let byte = u64::from(self.0.read_bits_aligned::<u32>(8)?);
value |= (byte & 0x7f) << (i * 7);
if byte & 0x80 == 0 {
break;
}
}
Ok(value as u32)
}
/// Implements su(n): Signed integer converted from an n bits unsigned
/// integer in the bitstream. (The unsigned integer corresponds to the
/// bottom n bits of the signed integer.). See 4.10.6
pub fn read_su(&mut self, num_bits: usize) -> Result<i32, String> {
let mut value: i32 = self
.0
.read_bits::<u32>(num_bits)?
.try_into()
.map_err(|_| String::from("Read more than 31 signed bits!"))?;
let sign_mask = 1 << (num_bits - 1);
if (value & sign_mask) != 0 {
value -= 2 * sign_mask;
}
Ok(value)
}
/// Implements ns(n): Unsigned encoded integer with maximum number of values
/// n (i.e. output in range 0..n-1). See 4.10.7
pub fn read_ns(&mut self, num_bits: usize) -> Result<u32, String> {
let w = helpers::floor_log2(num_bits as u32) + 1;
let m = (1 << w) - num_bits as u32;
let v = self.0.read_bits::<u32>(
usize::try_from(w).map_err(|_| String::from("Invalid num_bits"))? - 1,
)?;
if v < m.into() {
return Ok(v);
}
let extra_bit = self.0.read_bit()?;
Ok((v << 1) - u32::from(m) + u32::from(extra_bit))
}
/// Implements 5.9.13: Delta quantizer syntax.
pub fn read_delta_q(&mut self) -> Result<i32, String> {
let delta_coded = self.0.read_bit()?;
if delta_coded {
self.read_su(7)
} else {
Ok(0)
}
}
pub fn more_data_in_bitstream(&mut self) -> bool {
self.0.num_bits_left() > 0
}
pub(crate) fn consumed(&self, start_pos: u32) -> u32 {
(self.0.position() / 8) as u32 - start_pos
}
/// Get the length of the current OBU in AnnexB format.
pub fn current_annexb_obu_length(
&mut self,
annexb_state: &mut AnnexBState,
) -> Result<Option<usize>, String> {
if !self.more_data_in_bitstream() {
return Ok(None);
}
#[allow(clippy::comparison_chain)]
if annexb_state.temporal_unit_consumed == annexb_state.temporal_unit_size {
annexb_state.temporal_unit_size = 0;
} else if annexb_state.temporal_unit_consumed > annexb_state.temporal_unit_size {
return Err(format!(
"temporal_unit_size is {} but we consumed {} bytes",
annexb_state.temporal_unit_size, annexb_state.temporal_unit_consumed,
));
}
if annexb_state.temporal_unit_size == 0 {
annexb_state.temporal_unit_size = self.read_leb128()?;
if annexb_state.temporal_unit_size == 0 {
return Ok(None);
}
}
let start_pos = self.consumed(0);
#[allow(clippy::comparison_chain)]
if annexb_state.frame_unit_consumed == annexb_state.frame_unit_size {
annexb_state.frame_unit_size = 0;
} else if annexb_state.frame_unit_consumed > annexb_state.frame_unit_size {
return Err(format!(
"frame_unit_size is {} but we consumed {} bytes",
annexb_state.frame_unit_size, annexb_state.frame_unit_consumed,
));
}
if annexb_state.frame_unit_size == 0 {
annexb_state.frame_unit_size = self.read_leb128()?;
if annexb_state.frame_unit_size == 0 {
return Ok(None);
}
annexb_state.temporal_unit_consumed += self.consumed(start_pos);
}
let start_pos = self.consumed(0);
let obu_length = self.read_leb128()?;
let consumed = self.consumed(start_pos);
annexb_state.temporal_unit_consumed += consumed;
annexb_state.frame_unit_consumed += consumed;
Ok(Some(obu_length.try_into().unwrap()))
}
/// Implements 5.3.4.
pub fn read_trailing_bits(&mut self, mut num_bits: u64) -> Result<(), String> {
let trailing_one_bit = self.0.read_bit()?;
num_bits -= 1;
if !trailing_one_bit {
return Err("bad padding: trailing_one_bit is not set".into());
}
while num_bits > 0 {
let trailing_zero_bit = self.0.read_bit()?;
if trailing_zero_bit {
return Err("bad padding: trailing_zero_bit is set".into());
}
num_bits -= 1;
}
Ok(())
}
fn decode_subexp(&mut self, num_syms: i32) -> Result<u32, String> {
let mut i = 0;
let mut mk = 0;
let k = 3;
loop {
let b2 = if i != 0 { k + i - 1 } else { k };
let a = 1 << b2;
if num_syms <= mk + 3 * a {
let num_bits = num_syms - mk;
let subexp_final_bits = self.read_ns(num_bits as usize)?;
return Ok(subexp_final_bits);
} else {
let subexp_more_bits = self.0.read_bit()?;
if subexp_more_bits {
i += 1;
mk += a;
} else {
let num_bits = b2 as usize;
let subexp_bits = self.0.read_bits::<u32>(num_bits)?;
return Ok(subexp_bits + mk as u32);
}
}
}
}
/// Implements 5.9.27.
pub fn decode_unsigned_subexp_with_ref(&mut self, mx: i32, r: i32) -> Result<u32, String> {
let v = self.decode_subexp(mx)?;
if (r << 1) <= mx {
Ok(helpers::inverse_recenter(r, v.try_into().unwrap())
.try_into()
.unwrap())
} else {
let res = mx - 1 - helpers::inverse_recenter(mx - 1 - r, v.try_into().unwrap());
Ok(res.try_into().unwrap())
}
}
/// Implements 5.9.26.
pub fn decode_signed_subexp_with_ref(
&mut self,
low: i32,
high: i32,
r: i32,
) -> Result<i32, String> {
let x = self.decode_unsigned_subexp_with_ref(high - low, r - low)?;
Ok(i32::try_from(x).unwrap() + low)
}
/// Implements 5.3.5 Byte alignment syntax
pub fn byte_alignment(&mut self) -> Result<(), String> {
while (self.0.position() & 7) != 0 {
self.0.read_bit()?;
}
Ok(())
}
}
impl<'a> Clone for Reader<'a> {
fn clone(&self) -> Self {
Self(self.0.clone())
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/synthesizer.rs
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crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/test_data/av1-annexb.ivf.av1
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crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/test_data/av1-annexb.ivf.av1.crc
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crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/test_data/gen_crcs.sh
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#!/bin/bash
# Generates the CRCs for all .av1 files in the current directory using ffmpeg.
for f in `ls *.av1`; do
ffmpeg -i $f -pix_fmt nv12 -f framehash -hash crc32 - |grep -v '^#' |awk '{print $6}' >$f.crc
ffmpeg -i $f -pix_fmt nv12 -f framehash -hash md5 - |grep -v '^#' |awk '{print $6}' >$f.md5
done
crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/test_data/test-25fps.av1.ivf
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crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/test_data/test-25fps.av1.ivf.json
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{
"profile": "AV1PROFILE_PROFILE_MAIN",
"width": 320,
"height": 240,
"frame_rate": 25,
"num_frames": 250,
"num_fragments": 250,
"md5_checksums": [
"83dab175e49c33a6e3ece5c3758d1bf6",
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crates/pf-bitstream/vendor/cros-codecs/src/codec/av1/writer.rs
Vendored
+203
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@@ -0,0 +1,203 @@
// Copyright 2024 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::fmt;
use std::io::Write;
use crate::bitstream_utils::BitWriter;
use crate::bitstream_utils::BitWriterError;
#[derive(Debug)]
pub enum ObuWriterError {
BitWriterError(BitWriterError),
UnalignedLeb128,
}
impl fmt::Display for ObuWriterError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
ObuWriterError::BitWriterError(x) => write!(f, "{}", x.to_string()),
ObuWriterError::UnalignedLeb128 => {
write!(f, "attempted to write leb128 on unaligned position")
}
}
}
}
impl From<BitWriterError> for ObuWriterError {
fn from(err: BitWriterError) -> Self {
ObuWriterError::BitWriterError(err)
}
}
pub type ObuWriterResult<T> = std::result::Result<T, ObuWriterError>;
pub struct ObuWriter<W: Write>(BitWriter<W>);
impl<W: Write> ObuWriter<W> {
pub fn new(writer: W) -> Self {
Self(BitWriter::new(writer))
}
/// Writes fixed bit size integer. Corresponds to `f(n)` in AV1 spec defined in 4.10.2.
pub fn write_f<T: Into<u32>>(&mut self, bits: usize, value: T) -> ObuWriterResult<usize> {
self.0
.write_f(bits, value)
.map_err(ObuWriterError::BitWriterError)
}
/// Writes variable length unsigned n-bit number. Corresponds to `uvlc()` in AV1 spec
/// defined in 4.10.3.
pub fn write_uvlc<T: Into<u32>>(&mut self, value: T) -> ObuWriterResult<usize> {
let value: u32 = value.into();
if value == u32::MAX {
return self.write_f(32, 0u32);
}
let value = value + 1;
let leading_zeros = (32 - value.leading_zeros()) as usize;
Ok(self.write_f(leading_zeros - 1, 0u32)? + self.write_f(leading_zeros, value)?)
}
/// Writes unsigned little-endian n-byte integer. Corresponds to `le(n)` in AV1 spec
/// defined in 4.10.4.
pub fn write_le<T: Into<u32>>(&mut self, n: usize, value: T) -> ObuWriterResult<usize> {
let value: u32 = value.into();
let mut value = value.to_le();
for _ in 0..n {
self.write_f(4, value & 0xff)?;
value >>= 8;
}
Ok(n)
}
/// Writes unsigned integer represented by a variable number of little-endian bytes.
/// Corresponds to `leb128()` in AV1 spec defined in 4.10.4.
///
/// Note: Despite the name, the AV1 4.10.4 limits the value to [`u32::MAX`] = (1 << 32) - 1.
pub fn write_leb128<T: Into<u32>>(
&mut self,
value: T,
min_bytes: usize,
) -> ObuWriterResult<usize> {
if !self.aligned() {
return Err(ObuWriterError::UnalignedLeb128);
}
let value: u32 = value.into();
let mut value: u32 = value.to_le();
let mut bytes = 0;
for _ in 0..8 {
bytes += 1;
if value >= 0x7f || bytes < min_bytes {
self.write_f(8, 0x80 | (value & 0x7f))?;
value >>= 7;
} else {
self.write_f(8, value & 0x7f)?;
break;
}
}
assert!(value < 0x7f);
Ok(bytes)
}
pub fn write_su<T: Into<i32>>(&mut self, bits: usize, value: T) -> ObuWriterResult<usize> {
let mut value: i32 = value.into();
if value < 0 {
value += 1 << bits;
}
assert!(value >= 0);
self.write_f(bits, value.unsigned_abs())
}
pub fn aligned(&self) -> bool {
!self.0.has_data_pending()
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::codec::av1::reader::Reader;
const TEST_VECTOR: &[u32] = &[
// some random test values
u32::MAX,
1,
2,
3,
4,
10,
20,
7312,
8832,
10123,
47457,
21390213,
u32::MIN,
u32::MAX - 1,
];
#[test]
fn test_uvlc() {
for &value in TEST_VECTOR {
let mut buf = Vec::<u8>::new();
ObuWriter::new(&mut buf).write_uvlc(value).unwrap();
if value == u32::MAX {
// force stop uvlc
buf.push(0x80);
}
let read = Reader::new(&buf).read_uvlc().unwrap();
assert_eq!(read, value, "failed testing {}", value);
}
}
#[test]
fn test_leb128() {
for &value in TEST_VECTOR {
let mut buf = Vec::<u8>::new();
ObuWriter::new(&mut buf).write_leb128(value, 0).unwrap();
let read = Reader::new(&buf).read_leb128().unwrap();
assert_eq!(read, value, "failed testing {}", value);
}
}
#[test]
fn test_su() {
let vector = TEST_VECTOR
.iter()
.map(|e| *e as i32)
.chain(TEST_VECTOR.iter().map(|e| -(*e as i32)));
for value in vector {
let bits = 32 - value.abs().leading_zeros() as usize + 1; // For sign
if bits >= 32 {
// Skip too big nubmers
continue;
}
let mut buf = Vec::<u8>::new();
ObuWriter::new(&mut buf).write_su(bits, value).unwrap();
let read = Reader::new(&buf).read_su(bits as usize).unwrap();
assert_eq!(read, value, "failed testing {}", value);
}
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264.rs
Vendored
+10
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@@ -0,0 +1,10 @@
// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
pub mod dpb;
pub mod nalu;
pub mod nalu_writer;
pub mod parser;
pub mod picture;
pub mod synthesizer;
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/dpb.rs
Vendored
+1308
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File diff suppressed because it is too large Load Diff
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/nalu.rs
Vendored
+124
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@@ -0,0 +1,124 @@
// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::borrow::Cow;
use std::fmt::Debug;
use std::io::Cursor;
use std::io::Seek;
use std::io::SeekFrom;
#[allow(clippy::len_without_is_empty)]
pub trait Header: Sized {
/// Parse the NALU header, returning it.
fn parse<T: AsRef<[u8]>>(cursor: &mut Cursor<T>) -> Result<Self, String>;
/// Whether this header type indicates EOS.
fn is_end(&self) -> bool;
/// The length of the header.
fn len(&self) -> usize;
}
#[derive(Debug)]
pub struct Nalu<'a, U> {
pub header: U,
/// The mapping that backs this NALU. Possibly shared with the other NALUs
/// in the Access Unit.
pub data: Cow<'a, [u8]>,
pub size: usize,
pub offset: usize,
}
impl<'a, U> Nalu<'a, U>
where
U: Debug + Header,
{
/// Find the next Annex B encoded NAL unit.
pub fn next(cursor: &mut Cursor<&'a [u8]>) -> Result<Nalu<'a, U>, String> {
let bitstream = cursor.clone().into_inner();
let pos = usize::try_from(cursor.position()).map_err(|err| err.to_string())?;
// Find the start code for this NALU
let current_nalu_offset = match Nalu::<'a, U>::find_start_code(cursor, pos) {
Some(offset) => offset,
None => return Err("No NAL found".into()),
};
let mut start_code_offset = pos + current_nalu_offset;
// If the preceding byte is 00, then we actually have a four byte SC,
// i.e. 00 00 00 01 Where the first 00 is the "zero_byte()"
if start_code_offset > 0 && cursor.get_ref()[start_code_offset - 1] == 00 {
start_code_offset -= 1;
}
// The NALU offset is its offset + 3 bytes to skip the start code.
let nalu_offset = pos + current_nalu_offset + 3;
// Set the bitstream position to the start of the current NALU
cursor.set_position(u64::try_from(nalu_offset).map_err(|err| err.to_string())?);
let hdr = U::parse(cursor)?;
// Find the start of the subsequent NALU.
let mut next_nalu_offset = match Nalu::<'a, U>::find_start_code(cursor, nalu_offset) {
Some(offset) => offset,
None => {
let cur_pos = cursor.position();
let end_pos = cursor
.seek(SeekFrom::End(0))
.map_err(|err| err.to_string())?;
let _ = cursor
.seek(SeekFrom::Start(cur_pos))
.map_err(|err| err.to_string())?;
(end_pos - cur_pos) as usize
} // Whatever data is left must be part of the current NALU
};
while next_nalu_offset > 0 && cursor.get_ref()[nalu_offset + next_nalu_offset - 1] == 00 {
// Discard trailing_zero_8bits
next_nalu_offset -= 1;
}
let nal_size = if hdr.is_end() {
// the NALU is comprised of only the header
hdr.len()
} else {
next_nalu_offset
};
Ok(Nalu {
header: hdr,
data: Cow::from(&bitstream[start_code_offset..nalu_offset + nal_size]),
size: nal_size,
offset: nalu_offset - start_code_offset,
})
}
}
impl<'a, U> Nalu<'a, U>
where
U: Debug,
{
fn find_start_code(data: &mut Cursor<&'a [u8]>, offset: usize) -> Option<usize> {
// discard all zeroes until the start code pattern is found
data.get_ref()[offset..]
.windows(3)
.position(|window| window == [0x00, 0x00, 0x01])
}
pub fn into_owned(self) -> Nalu<'static, U> {
Nalu {
header: self.header,
size: self.size,
offset: self.offset,
data: Cow::Owned(self.data.into_owned()),
}
}
}
impl<'a, U> AsRef<[u8]> for Nalu<'a, U> {
fn as_ref(&self) -> &[u8] {
&self.data[self.offset..self.offset + self.size]
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/nalu_writer.rs
Vendored
+311
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@@ -0,0 +1,311 @@
// Copyright 2024 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::fmt;
use std::io::Write;
use crate::bitstream_utils::BitWriter;
use crate::bitstream_utils::BitWriterError;
/// Internal wrapper over [`std::io::Write`] for possible emulation prevention
struct EmulationPrevention<W: Write> {
out: W,
prev_bytes: [Option<u8>; 2],
/// Emulation prevention enabled.
ep_enabled: bool,
}
impl<W: Write> EmulationPrevention<W> {
fn new(writer: W, ep_enabled: bool) -> Self {
Self {
out: writer,
prev_bytes: [None; 2],
ep_enabled,
}
}
fn write_byte(&mut self, curr_byte: u8) -> std::io::Result<()> {
if self.prev_bytes[1] == Some(0x00) && self.prev_bytes[0] == Some(0x00) && curr_byte <= 0x03
{
self.out.write_all(&[0x00, 0x00, 0x03, curr_byte])?;
self.prev_bytes = [None; 2];
} else {
if let Some(byte) = self.prev_bytes[1] {
self.out.write_all(&[byte])?;
}
self.prev_bytes[1] = self.prev_bytes[0];
self.prev_bytes[0] = Some(curr_byte);
}
Ok(())
}
/// Writes a H.264 NALU header.
fn write_header(&mut self, idc: u8, type_: u8) -> NaluWriterResult<()> {
self.out.write_all(&[
0x00,
0x00,
0x00,
0x01,
(idc & 0b11) << 5 | (type_ & 0b11111),
])?;
Ok(())
}
fn has_data_pending(&self) -> bool {
self.prev_bytes[0].is_some() || self.prev_bytes[1].is_some()
}
}
impl<W: Write> Write for EmulationPrevention<W> {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
if !self.ep_enabled {
self.out.write_all(buf)?;
return Ok(buf.len());
}
for byte in buf {
self.write_byte(*byte)?;
}
Ok(buf.len())
}
fn flush(&mut self) -> std::io::Result<()> {
if let Some(byte) = self.prev_bytes[1].take() {
self.out.write_all(&[byte])?;
}
if let Some(byte) = self.prev_bytes[0].take() {
self.out.write_all(&[byte])?;
}
self.out.flush()
}
}
impl<W: Write> Drop for EmulationPrevention<W> {
fn drop(&mut self) {
if let Err(e) = self.flush() {
log::error!("Unable to flush pending bytes {e:?}");
}
}
}
#[derive(Debug)]
pub enum NaluWriterError {
Overflow,
Io(std::io::Error),
BitWriterError(BitWriterError),
}
impl fmt::Display for NaluWriterError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
NaluWriterError::Overflow => write!(f, "value increment caused value overflow"),
NaluWriterError::Io(x) => write!(f, "{}", x.to_string()),
NaluWriterError::BitWriterError(x) => write!(f, "{}", x.to_string()),
}
}
}
impl From<std::io::Error> for NaluWriterError {
fn from(err: std::io::Error) -> Self {
NaluWriterError::Io(err)
}
}
impl From<BitWriterError> for NaluWriterError {
fn from(err: BitWriterError) -> Self {
NaluWriterError::BitWriterError(err)
}
}
pub type NaluWriterResult<T> = std::result::Result<T, NaluWriterError>;
/// A writer for H.264 bitstream. It is capable of outputing bitstream with
/// emulation-prevention.
pub struct NaluWriter<W: Write>(BitWriter<EmulationPrevention<W>>);
impl<W: Write> NaluWriter<W> {
pub fn new(writer: W, ep_enabled: bool) -> Self {
Self(BitWriter::new(EmulationPrevention::new(writer, ep_enabled)))
}
/// Writes fixed bit size integer (up to 32 bit) output with emulation
/// prevention if enabled. Corresponds to `f(n)` in H.264 spec.
pub fn write_f<T: Into<u32>>(&mut self, bits: usize, value: T) -> NaluWriterResult<usize> {
self.0
.write_f(bits, value)
.map_err(NaluWriterError::BitWriterError)
}
/// An alias to [`Self::write_f`] Corresponds to `n(n)` in H.264 spec.
pub fn write_u<T: Into<u32>>(&mut self, bits: usize, value: T) -> NaluWriterResult<usize> {
self.write_f(bits, value)
}
/// Writes a number in exponential golumb format.
pub fn write_exp_golumb(&mut self, value: u32) -> NaluWriterResult<()> {
let value = value.checked_add(1).ok_or(NaluWriterError::Overflow)?;
let bits = 32 - value.leading_zeros() as usize;
let zeros = bits - 1;
self.write_f(zeros, 0u32)?;
self.write_f(bits, value)?;
Ok(())
}
/// Writes a unsigned integer in exponential golumb format.
/// Coresponds to `ue(v)` in H.264 spec.
pub fn write_ue<T: Into<u32>>(&mut self, value: T) -> NaluWriterResult<()> {
let value = value.into();
self.write_exp_golumb(value)
}
/// Writes a signed integer in exponential golumb format.
/// Coresponds to `se(v)` in H.264 spec.
pub fn write_se<T: Into<i32>>(&mut self, value: T) -> NaluWriterResult<()> {
let value: i32 = value.into();
let abs_value: u32 = value.unsigned_abs();
if value <= 0 {
self.write_ue(2 * abs_value)
} else {
self.write_ue(2 * abs_value - 1)
}
}
/// Returns `true` if ['Self`] hold data that wasn't written to [`std::io::Write`]
pub fn has_data_pending(&self) -> bool {
self.0.has_data_pending() || self.0.inner().has_data_pending()
}
/// Writes a H.264 NALU header.
pub fn write_header(&mut self, idc: u8, _type: u8) -> NaluWriterResult<()> {
self.0.flush()?;
self.0.inner_mut().write_header(idc, _type)?;
Ok(())
}
/// Returns `true` if next bits will be aligned to 8
pub fn aligned(&self) -> bool {
!self.0.has_data_pending()
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::bitstream_utils::BitReader;
#[test]
fn simple_bits() {
let mut buf = Vec::<u8>::new();
{
let mut writer = NaluWriter::new(&mut buf, false);
writer.write_f(1, true).unwrap();
writer.write_f(1, false).unwrap();
writer.write_f(1, false).unwrap();
writer.write_f(1, false).unwrap();
writer.write_f(1, true).unwrap();
writer.write_f(1, true).unwrap();
writer.write_f(1, true).unwrap();
writer.write_f(1, true).unwrap();
}
assert_eq!(buf, vec![0b10001111u8]);
}
#[test]
fn simple_first_few_ue() {
fn single_ue(value: u32) -> Vec<u8> {
let mut buf = Vec::<u8>::new();
{
let mut writer = NaluWriter::new(&mut buf, false);
writer.write_ue(value).unwrap();
}
buf
}
assert_eq!(single_ue(0), vec![0b10000000u8]);
assert_eq!(single_ue(1), vec![0b01000000u8]);
assert_eq!(single_ue(2), vec![0b01100000u8]);
assert_eq!(single_ue(3), vec![0b00100000u8]);
assert_eq!(single_ue(4), vec![0b00101000u8]);
assert_eq!(single_ue(5), vec![0b00110000u8]);
assert_eq!(single_ue(6), vec![0b00111000u8]);
assert_eq!(single_ue(7), vec![0b00010000u8]);
assert_eq!(single_ue(8), vec![0b00010010u8]);
assert_eq!(single_ue(9), vec![0b00010100u8]);
}
#[test]
fn writer_reader() {
let mut buf = Vec::<u8>::new();
{
let mut writer = NaluWriter::new(&mut buf, false);
writer.write_ue(10u32).unwrap();
writer.write_se(-42).unwrap();
writer.write_se(3).unwrap();
writer.write_ue(5u32).unwrap();
}
let mut reader = BitReader::new(&buf, true);
assert_eq!(reader.read_ue::<u32>().unwrap(), 10);
assert_eq!(reader.read_se::<i32>().unwrap(), -42);
assert_eq!(reader.read_se::<i32>().unwrap(), 3);
assert_eq!(reader.read_ue::<u32>().unwrap(), 5);
let mut buf = Vec::<u8>::new();
{
let mut writer = NaluWriter::new(&mut buf, false);
writer.write_se(30).unwrap();
writer.write_ue(100u32).unwrap();
writer.write_se(-402).unwrap();
writer.write_ue(50u32).unwrap();
}
let mut reader = BitReader::new(&buf, true);
assert_eq!(reader.read_se::<i32>().unwrap(), 30);
assert_eq!(reader.read_ue::<u32>().unwrap(), 100);
assert_eq!(reader.read_se::<i32>().unwrap(), -402);
assert_eq!(reader.read_ue::<u32>().unwrap(), 50);
}
#[test]
fn writer_emulation_prevention() {
fn test(input: &[u8], bitstream: &[u8]) {
let mut buf = Vec::<u8>::new();
{
let mut writer = NaluWriter::new(&mut buf, true);
for byte in input {
writer.write_f(8, *byte).unwrap();
}
}
assert_eq!(buf, bitstream);
{
let mut reader = BitReader::new(&buf, true);
for byte in input {
assert_eq!(*byte, reader.read_bits::<u8>(8).unwrap());
}
}
}
test(&[0x00, 0x00, 0x00], &[0x00, 0x00, 0x03, 0x00]);
test(&[0x00, 0x00, 0x01], &[0x00, 0x00, 0x03, 0x01]);
test(&[0x00, 0x00, 0x02], &[0x00, 0x00, 0x03, 0x02]);
test(&[0x00, 0x00, 0x03], &[0x00, 0x00, 0x03, 0x03]);
test(&[0x00, 0x00, 0x00, 0x00], &[0x00, 0x00, 0x03, 0x00, 0x00]);
test(&[0x00, 0x00, 0x00, 0x01], &[0x00, 0x00, 0x03, 0x00, 0x01]);
test(&[0x00, 0x00, 0x00, 0x02], &[0x00, 0x00, 0x03, 0x00, 0x02]);
test(&[0x00, 0x00, 0x00, 0x03], &[0x00, 0x00, 0x03, 0x00, 0x03]);
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/parser.rs
Vendored
+3062
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File diff suppressed because it is too large Load Diff
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/picture.rs
Vendored
+443
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@@ -0,0 +1,443 @@
// Copyright 2022 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::cell::RefCell;
use std::ops::Deref;
use std::rc::Rc;
use std::rc::Weak;
use log::debug;
use crate::codec::h264::parser::MaxLongTermFrameIdx;
use crate::codec::h264::parser::RefPicMarking;
use crate::codec::h264::parser::Slice;
use crate::codec::h264::parser::SliceType;
use crate::codec::h264::parser::Sps;
use crate::Resolution;
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
pub enum Field {
#[default]
Frame,
Top,
Bottom,
}
impl Field {
/// Returns the field of opposite parity.
pub fn opposite(&self) -> Self {
match *self {
Field::Frame => Field::Frame,
Field::Top => Field::Bottom,
Field::Bottom => Field::Top,
}
}
}
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
pub enum Reference {
#[default]
None,
ShortTerm,
LongTerm,
}
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
pub enum IsIdr {
#[default]
No,
Yes {
idr_pic_id: u16,
},
}
/// The rank of a field, i.e. whether it is the first or second one to be parsed from the stream.
/// This is unrelated to the `Field` type, as the first field can be either `Top` or `Bottom`.
#[derive(Default, Debug)]
pub enum FieldRank {
/// Frame has a single field.
#[default]
Single,
/// Frame is interlaced, and this is the first field (with a reference to the second one).
First(Weak<RefCell<PictureData>>),
/// Frame is interlaced, and this is the second field (with a reference to the first one).
Second(Rc<RefCell<PictureData>>),
}
#[derive(Default)]
pub struct PictureData {
pub pic_order_cnt_type: u8,
pub top_field_order_cnt: i32,
pub bottom_field_order_cnt: i32,
pub pic_order_cnt: i32,
pub pic_order_cnt_msb: i32,
pub pic_order_cnt_lsb: i32,
pub delta_pic_order_cnt_bottom: i32,
pub delta_pic_order_cnt0: i32,
pub delta_pic_order_cnt1: i32,
pub pic_num: i32,
pub long_term_pic_num: u32,
pub frame_num: u32,
pub frame_num_offset: u32,
pub frame_num_wrap: i32,
pub long_term_frame_idx: u32,
pub coded_resolution: Resolution,
pub display_resolution: Resolution,
pub type_: SliceType,
pub nal_ref_idc: u8,
pub is_idr: IsIdr,
reference: Reference,
pub ref_pic_list_modification_flag_l0: i32,
pub abs_diff_pic_num_minus1: i32,
// Does memory management op 5 needs to be executed after this
// picture has finished decoding?
pub has_mmco_5: bool,
// Created by the decoding process for gaps in frame_num.
// Not for decode or output.
pub nonexisting: bool,
pub field: Field,
// Values from slice_hdr to be used during reference marking and
// memory management after finishing this picture.
pub ref_pic_marking: RefPicMarking,
field_rank: FieldRank,
pub timestamp: u64,
}
/// A `PictureData` within a `Rc<RefCell>` which field rank is guaranteed to be correct.
///
/// The field rank of `PictureData` is only final after both fields have been constructed - namely,
/// the first field can only point to the second one after the latter is available as a Rc. Methods
/// [`PictureData::into_rc`] and [`PictureData::split_frame`] take care of this, and is this only
/// producer of this type, ensuring all instances are correct.
#[derive(Default, Debug, Clone)]
pub struct RcPictureData {
pic: Rc<RefCell<PictureData>>,
}
impl Deref for RcPictureData {
type Target = Rc<RefCell<PictureData>>;
fn deref(&self) -> &Self::Target {
&self.pic
}
}
impl PictureData {
pub fn new_non_existing(frame_num: u32, timestamp: u64) -> Self {
PictureData {
frame_num,
nonexisting: true,
nal_ref_idc: 1,
field: Field::Frame,
pic_num: frame_num as i32,
reference: Reference::ShortTerm,
timestamp,
..Default::default()
}
}
/// Create a new picture from a `slice`, `sps`, and `timestamp`.
///
/// `first_field` is set if this picture is the second field of a frame.
pub fn new_from_slice(
slice: &Slice,
sps: &Sps,
timestamp: u64,
first_field: Option<&RcPictureData>,
) -> Self {
let hdr = &slice.header;
let nalu_hdr = &slice.nalu.header;
let is_idr = if nalu_hdr.idr_pic_flag {
IsIdr::Yes {
idr_pic_id: hdr.idr_pic_id,
}
} else {
IsIdr::No
};
let field = if hdr.field_pic_flag {
if hdr.bottom_field_flag {
Field::Bottom
} else {
Field::Top
}
} else {
Field::Frame
};
let reference = if nalu_hdr.ref_idc != 0 {
Reference::ShortTerm
} else {
Reference::None
};
let pic_num = if !hdr.field_pic_flag {
hdr.frame_num
} else {
2 * hdr.frame_num + 1
};
let (
pic_order_cnt_lsb,
delta_pic_order_cnt_bottom,
delta_pic_order_cnt0,
delta_pic_order_cnt1,
) = match sps.pic_order_cnt_type {
0 => (
hdr.pic_order_cnt_lsb,
hdr.delta_pic_order_cnt_bottom,
Default::default(),
Default::default(),
),
1 => (
Default::default(),
Default::default(),
hdr.delta_pic_order_cnt[0],
hdr.delta_pic_order_cnt[1],
),
_ => (
Default::default(),
Default::default(),
Default::default(),
Default::default(),
),
};
let coded_resolution = Resolution::from((sps.width(), sps.height()));
let visible_rect = sps.visible_rectangle();
// punktfunk deviation (PROVENANCE.md #6): `Sps::visible_rectangle()` returns
// the crop offset in `min` and the visible SIZE in `max` (not a corner);
// upstream's `max - min` double-counts the left/top crop and panics on a u32
// underflow for large-but-parser-valid left/top offsets.
let display_resolution = Resolution {
width: visible_rect.max.x,
height: visible_rect.max.y,
};
let mut pic = PictureData {
pic_order_cnt_type: sps.pic_order_cnt_type,
pic_order_cnt_lsb: i32::from(pic_order_cnt_lsb),
delta_pic_order_cnt_bottom,
delta_pic_order_cnt0,
delta_pic_order_cnt1,
pic_num: i32::from(pic_num),
frame_num: u32::from(hdr.frame_num),
nal_ref_idc: nalu_hdr.ref_idc,
is_idr,
reference,
field,
ref_pic_marking: hdr.dec_ref_pic_marking.clone(),
coded_resolution,
display_resolution,
timestamp,
..Default::default()
};
if let Some(first_field) = first_field {
pic.set_first_field_to(first_field);
}
pic
}
/// Whether the current picture is a reference, either ShortTerm or LongTerm.
pub fn is_ref(&self) -> bool {
!matches!(self.reference, Reference::None)
}
/// Whether this picture is a second field.
pub fn is_second_field(&self) -> bool {
matches!(self.field_rank, FieldRank::Second(..))
}
/// Returns the field rank of this picture, including a reference to its other field.
pub fn field_rank(&self) -> &FieldRank {
&self.field_rank
}
/// Returns a reference to the picture's Reference
pub fn reference(&self) -> &Reference {
&self.reference
}
/// Mark the picture as a reference picture.
pub fn set_reference(&mut self, reference: Reference, apply_to_other_field: bool) {
log::debug!("Set reference of {:#?} to {:?}", self, reference);
self.reference = reference;
if apply_to_other_field {
if let Some(other_field) = self.other_field() {
log::debug!(
"other_field: Set reference of {:#?} to {:?}",
&other_field.borrow(),
reference
);
other_field.borrow_mut().reference = reference;
}
}
}
/// Get a reference to the picture's other field, if there is any
/// and its reference is still valid.
pub fn other_field(&self) -> Option<Rc<RefCell<PictureData>>> {
match &self.field_rank {
FieldRank::Single => None,
FieldRank::First(other_field) => other_field.upgrade(),
FieldRank::Second(other_field) => Some(other_field.clone()),
}
}
/// Set this picture's second field.
fn set_second_field_to(&mut self, other_field: &Rc<RefCell<Self>>) {
self.field_rank = FieldRank::First(Rc::downgrade(other_field));
}
/// Whether the current picture is the second field of a complementary ref pair.
pub fn is_second_field_of_complementary_ref_pair(&self) -> bool {
self.is_ref()
&& matches!(self.field_rank(), FieldRank::Second(first_field) if first_field.borrow().is_ref())
}
/// Set this picture's first field.
fn set_first_field_to(&mut self, other_field: &Rc<RefCell<Self>>) {
self.field_rank = FieldRank::Second(other_field.clone());
}
pub fn pic_num_f(&self, max_pic_num: i32) -> i32 {
if !matches!(self.reference(), Reference::LongTerm) {
self.pic_num
} else {
max_pic_num
}
}
pub fn long_term_pic_num_f(&self, max_long_term_frame_idx: MaxLongTermFrameIdx) -> u32 {
if matches!(self.reference(), Reference::LongTerm) {
self.long_term_pic_num
} else {
2 * max_long_term_frame_idx.to_value_plus1()
}
}
/// Consume this picture and return a Rc'd version.
///
/// If the picture was a second field, adjust the field of the first field to point to this
/// one.
pub fn into_rc(self) -> RcPictureData {
let self_rc = Rc::new(RefCell::new(self));
if let FieldRank::Second(first_field) = self_rc.borrow().field_rank() {
first_field.borrow_mut().set_second_field_to(&self_rc);
}
RcPictureData { pic: self_rc }
}
/// Split a frame into two complementary fields that reference one another.
pub fn split_frame(mut self) -> (RcPictureData, RcPictureData) {
assert!(matches!(self.field, Field::Frame));
assert!(matches!(self.field_rank, FieldRank::Single));
debug!(
"Splitting picture (frame_num, POC) ({:?}, {:?})",
self.frame_num, self.pic_order_cnt
);
let second_pic_order_cnt = if self.top_field_order_cnt < self.bottom_field_order_cnt {
self.field = Field::Top;
self.pic_order_cnt = self.top_field_order_cnt;
self.bottom_field_order_cnt
} else {
self.field = Field::Bottom;
self.pic_order_cnt = self.bottom_field_order_cnt;
self.top_field_order_cnt
};
let second_field = PictureData {
top_field_order_cnt: self.top_field_order_cnt,
bottom_field_order_cnt: self.bottom_field_order_cnt,
frame_num: self.frame_num,
reference: self.reference,
nonexisting: self.nonexisting,
pic_order_cnt: second_pic_order_cnt,
field: self.field.opposite(),
..Default::default()
};
debug!(
"Split into picture (frame_num, POC) ({:?}, {:?}), field: {:?}",
self.frame_num, self.pic_order_cnt, self.field
);
debug!(
"Split into picture (frame_num, POC) ({:?}, {:?}), field {:?}",
second_field.frame_num, second_field.pic_order_cnt, second_field.field
);
let first_field = Rc::new(RefCell::new(self));
let second_field = Rc::new(RefCell::new(second_field));
first_field.borrow_mut().set_second_field_to(&second_field);
second_field.borrow_mut().set_first_field_to(&first_field);
(
RcPictureData { pic: first_field },
RcPictureData { pic: second_field },
)
}
}
impl std::fmt::Debug for PictureData {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("PictureData")
.field("pic_order_cnt_type", &self.pic_order_cnt_type)
.field("top_field_order_cnt", &self.top_field_order_cnt)
.field("bottom_field_order_cnt", &self.bottom_field_order_cnt)
.field("pic_order_cnt", &self.pic_order_cnt)
.field("pic_order_cnt_msb", &self.pic_order_cnt_msb)
.field("pic_order_cnt_lsb", &self.pic_order_cnt_lsb)
.field(
"delta_pic_order_cnt_bottom",
&self.delta_pic_order_cnt_bottom,
)
.field("delta_pic_order_cnt0", &self.delta_pic_order_cnt0)
.field("delta_pic_order_cnt1", &self.delta_pic_order_cnt1)
.field("pic_num", &self.pic_num)
.field("long_term_pic_num", &self.long_term_pic_num)
.field("frame_num", &self.frame_num)
.field("frame_num_offset", &self.frame_num_offset)
.field("frame_num_wrap", &self.frame_num_wrap)
.field("long_term_frame_idx", &self.long_term_frame_idx)
.field("coded_resolution", &self.coded_resolution)
.field("display_resolution", &self.display_resolution)
.field("type_", &self.type_)
.field("nal_ref_idc", &self.nal_ref_idc)
.field("is_idr", &self.is_idr)
.field("reference", &self.reference)
.field(
"ref_pic_list_modification_flag_l0",
&self.ref_pic_list_modification_flag_l0,
)
.field("abs_diff_pic_num_minus1", &self.abs_diff_pic_num_minus1)
.field("has_mmco_5", &self.has_mmco_5)
.field("nonexisting", &self.nonexisting)
.field("field", &self.field)
.field("ref_pic_marking", &self.ref_pic_marking)
.field("field_rank", &self.field_rank)
.finish()
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/synthesizer.rs
Vendored
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// Copyright 2024 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::fmt;
use std::io::Write;
use crate::codec::h264::nalu_writer::NaluWriter;
use crate::codec::h264::nalu_writer::NaluWriterError;
use crate::codec::h264::parser::HrdParams;
use crate::codec::h264::parser::NaluType;
use crate::codec::h264::parser::Pps;
use crate::codec::h264::parser::Sps;
use crate::codec::h264::parser::DEFAULT_4X4_INTER;
use crate::codec::h264::parser::DEFAULT_4X4_INTRA;
use crate::codec::h264::parser::DEFAULT_8X8_INTER;
use crate::codec::h264::parser::DEFAULT_8X8_INTRA;
mod private {
pub trait NaluStruct {}
}
impl private::NaluStruct for Sps {}
impl private::NaluStruct for Pps {}
#[derive(Debug)]
pub enum SynthesizerError {
Unsupported,
NaluWriter(NaluWriterError),
}
impl fmt::Display for SynthesizerError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
SynthesizerError::Unsupported => write!(f, "tried to synthesize unsupported settings"),
SynthesizerError::NaluWriter(x) => write!(f, "{}", x.to_string()),
}
}
}
impl From<NaluWriterError> for SynthesizerError {
fn from(err: NaluWriterError) -> Self {
SynthesizerError::NaluWriter(err)
}
}
pub type SynthesizerResult<T> = Result<T, SynthesizerError>;
/// A helper to output typed NALUs to [`std::io::Write`] using [`NaluWriter`].
pub struct Synthesizer<'n, N: private::NaluStruct, W: Write> {
writer: NaluWriter<W>,
nalu: &'n N,
}
/// Extended Sample Aspect Ratio - H.264 Table E-1
const EXTENDED_SAR: u8 = 255;
impl<N: private::NaluStruct, W: Write> Synthesizer<'_, N, W> {
fn u<T: Into<u32>>(&mut self, bits: usize, value: T) -> SynthesizerResult<()> {
self.writer.write_u(bits, value)?;
Ok(())
}
fn f<T: Into<u32>>(&mut self, bits: usize, value: T) -> SynthesizerResult<()> {
self.writer.write_f(bits, value)?;
Ok(())
}
fn ue<T: Into<u32>>(&mut self, value: T) -> SynthesizerResult<()> {
self.writer.write_ue(value)?;
Ok(())
}
fn se<T: Into<i32>>(&mut self, value: T) -> SynthesizerResult<()> {
self.writer.write_se(value)?;
Ok(())
}
fn scaling_list(&mut self, list: &[u8], default: &[u8]) -> SynthesizerResult<()> {
// H.264 7.3.2.1.1.1
if list == default {
self.se(-8)?;
return Ok(());
}
// The number of list values we want to encode.
let mut run = list.len();
// Check how many values at the end of the matrix are the same,
// so we can save on encoding those.
for j in (1..list.len()).rev() {
if list[j - 1] != list[j] {
break;
}
run -= 1;
}
// Encode deltas.
let mut last_scale = 8;
for scale in &list[0..run] {
let delta_scale = *scale as i32 - last_scale;
self.se(delta_scale)?;
last_scale = *scale as i32;
}
// Didn't encode all values, encode -|last_scale| to set decoder's
// |next_scale| (H.264 7.3.2.1.1.1) to zero, i.e. decoder should repeat
// last values in matrix.
if run < list.len() {
self.se(-last_scale)?;
}
Ok(())
}
fn default_scaling_list(i: usize) -> &'static [u8] {
// H.264 Table 7-2
match i {
0 => &DEFAULT_4X4_INTRA[..],
1 => &DEFAULT_4X4_INTRA[..],
2 => &DEFAULT_4X4_INTRA[..],
3 => &DEFAULT_4X4_INTER[..],
4 => &DEFAULT_4X4_INTER[..],
5 => &DEFAULT_4X4_INTER[..],
6 => &DEFAULT_8X8_INTRA[..],
7 => &DEFAULT_8X8_INTER[..],
8 => &DEFAULT_8X8_INTRA[..],
9 => &DEFAULT_8X8_INTER[..],
10 => &DEFAULT_8X8_INTRA[..],
11 => &DEFAULT_8X8_INTER[..],
_ => unreachable!(),
}
}
fn rbsp_trailing_bits(&mut self) -> SynthesizerResult<()> {
self.f(1, 1u32)?;
while !self.writer.aligned() {
self.f(1, 0u32)?;
}
Ok(())
}
}
impl<'n, W: Write> Synthesizer<'n, Sps, W> {
pub fn synthesize(
ref_idc: u8,
sps: &'n Sps,
writer: W,
ep_enabled: bool,
) -> SynthesizerResult<()> {
let mut s = Self {
writer: NaluWriter::<W>::new(writer, ep_enabled),
nalu: sps,
};
s.writer.write_header(ref_idc, NaluType::Sps as u8)?;
s.seq_parameter_set_data()?;
s.rbsp_trailing_bits()
}
fn hrd_parameters(&mut self, hrd_params: &HrdParams) -> SynthesizerResult<()> {
self.ue(hrd_params.cpb_cnt_minus1)?;
self.u(4, hrd_params.bit_rate_scale)?;
self.u(4, hrd_params.cpb_size_scale)?;
for i in 0..=(hrd_params.cpb_cnt_minus1 as usize) {
self.ue(hrd_params.bit_rate_value_minus1[i])?;
self.ue(hrd_params.cpb_size_value_minus1[i])?;
self.u(1, hrd_params.cbr_flag[i])?;
}
self.u(5, hrd_params.initial_cpb_removal_delay_length_minus1)?;
self.u(5, hrd_params.cpb_removal_delay_length_minus1)?;
self.u(5, hrd_params.dpb_output_delay_length_minus1)?;
self.u(5, hrd_params.time_offset_length)?;
Ok(())
}
fn vui_parameters(&mut self) -> SynthesizerResult<()> {
// H.264 E.1.1
let vui_params = &self.nalu.vui_parameters;
self.u(1, vui_params.aspect_ratio_info_present_flag)?;
if vui_params.aspect_ratio_info_present_flag {
self.u(8, vui_params.aspect_ratio_idc)?;
if vui_params.aspect_ratio_idc == EXTENDED_SAR {
self.u(16, vui_params.sar_width)?;
self.u(16, vui_params.sar_height)?;
}
}
self.u(1, vui_params.overscan_info_present_flag)?;
if vui_params.overscan_info_present_flag {
self.u(1, vui_params.overscan_appropriate_flag)?;
}
self.u(1, vui_params.video_signal_type_present_flag)?;
if vui_params.video_signal_type_present_flag {
self.u(3, vui_params.video_format)?;
self.u(1, vui_params.video_full_range_flag)?;
self.u(1, vui_params.colour_description_present_flag)?;
if vui_params.colour_description_present_flag {
self.u(8, vui_params.colour_primaries)?;
self.u(8, vui_params.transfer_characteristics)?;
self.u(8, vui_params.matrix_coefficients)?;
}
}
self.u(1, vui_params.chroma_loc_info_present_flag)?;
if vui_params.chroma_loc_info_present_flag {
self.ue(vui_params.chroma_sample_loc_type_top_field)?;
self.ue(self.nalu.vui_parameters.chroma_sample_loc_type_bottom_field)?;
}
self.u(1, vui_params.timing_info_present_flag)?;
if vui_params.timing_info_present_flag {
self.u(32, vui_params.num_units_in_tick)?;
self.u(32, vui_params.time_scale)?;
self.u(1, vui_params.fixed_frame_rate_flag)?;
}
self.u(1, vui_params.nal_hrd_parameters_present_flag)?;
if vui_params.nal_hrd_parameters_present_flag {
self.hrd_parameters(&vui_params.nal_hrd_parameters)?;
}
self.u(1, vui_params.vcl_hrd_parameters_present_flag)?;
if vui_params.vcl_hrd_parameters_present_flag {
self.hrd_parameters(&vui_params.vcl_hrd_parameters)?;
}
if vui_params.nal_hrd_parameters_present_flag || vui_params.vcl_hrd_parameters_present_flag
{
self.u(1, vui_params.low_delay_hrd_flag)?;
}
self.u(1, vui_params.pic_struct_present_flag)?;
self.u(1, vui_params.bitstream_restriction_flag)?;
if vui_params.bitstream_restriction_flag {
self.u(1, vui_params.motion_vectors_over_pic_boundaries_flag)?;
self.ue(vui_params.max_bytes_per_pic_denom)?;
self.ue(vui_params.max_bits_per_mb_denom)?;
self.ue(vui_params.log2_max_mv_length_horizontal)?;
self.ue(vui_params.log2_max_mv_length_vertical)?;
self.ue(vui_params.max_num_reorder_frames)?;
self.ue(vui_params.max_dec_frame_buffering)?;
}
Ok(())
}
fn seq_parameter_set_data(&mut self) -> SynthesizerResult<()> {
// H.264 7.3.2.1.1
self.u(8, self.nalu.profile_idc)?;
self.u(1, self.nalu.constraint_set0_flag)?;
self.u(1, self.nalu.constraint_set1_flag)?;
self.u(1, self.nalu.constraint_set2_flag)?;
self.u(1, self.nalu.constraint_set3_flag)?;
self.u(1, self.nalu.constraint_set4_flag)?;
self.u(1, self.nalu.constraint_set5_flag)?;
self.u(2, /* reserved_zero_2bits */ 0u32)?;
self.u(8, self.nalu.level_idc as u32)?;
self.ue(self.nalu.seq_parameter_set_id)?;
if self.nalu.profile_idc == 100
|| self.nalu.profile_idc == 110
|| self.nalu.profile_idc == 122
|| self.nalu.profile_idc == 244
|| self.nalu.profile_idc == 44
|| self.nalu.profile_idc == 83
|| self.nalu.profile_idc == 86
|| self.nalu.profile_idc == 118
|| self.nalu.profile_idc == 128
|| self.nalu.profile_idc == 138
|| self.nalu.profile_idc == 139
|| self.nalu.profile_idc == 134
|| self.nalu.profile_idc == 135
{
self.ue(self.nalu.chroma_format_idc)?;
if self.nalu.chroma_format_idc == 3 {
self.u(1, self.nalu.separate_colour_plane_flag)?;
}
self.ue(self.nalu.bit_depth_luma_minus8)?;
self.ue(self.nalu.bit_depth_chroma_minus8)?;
self.u(1, self.nalu.qpprime_y_zero_transform_bypass_flag)?;
self.u(1, self.nalu.seq_scaling_matrix_present_flag)?;
if self.nalu.seq_scaling_matrix_present_flag {
let scaling_list_count = if self.nalu.chroma_format_idc != 3 {
8
} else {
12
};
for i in 0..scaling_list_count {
// Assume if scaling lists are zeroed that they are not present.
if i < 6 {
if self.nalu.scaling_lists_4x4[i] == [0; 16] {
self.u(1, /* seq_scaling_list_present_flag */ false)?;
} else {
self.u(1, /* seq_scaling_list_present_flag */ true)?;
self.scaling_list(
&self.nalu.scaling_lists_4x4[i],
Self::default_scaling_list(i),
)?;
}
} else if self.nalu.scaling_lists_8x8[i - 6] == [0; 64] {
self.u(1, /* seq_scaling_list_present_flag */ false)?;
} else {
self.u(1, /* seq_scaling_list_present_flag */ true)?;
self.scaling_list(
&self.nalu.scaling_lists_8x8[i - 6],
Self::default_scaling_list(i),
)?;
}
}
}
}
self.ue(self.nalu.log2_max_frame_num_minus4)?;
self.ue(self.nalu.pic_order_cnt_type)?;
if self.nalu.pic_order_cnt_type == 0 {
self.ue(self.nalu.log2_max_pic_order_cnt_lsb_minus4)?;
} else if self.nalu.pic_order_cnt_type == 1 {
self.u(1, self.nalu.delta_pic_order_always_zero_flag)?;
self.se(self.nalu.offset_for_non_ref_pic)?;
self.se(self.nalu.offset_for_top_to_bottom_field)?;
self.ue(self.nalu.num_ref_frames_in_pic_order_cnt_cycle)?;
for offset_for_ref_frame in &self.nalu.offset_for_ref_frame {
self.se(*offset_for_ref_frame)?;
}
}
self.ue(self.nalu.max_num_ref_frames)?;
self.u(1, self.nalu.gaps_in_frame_num_value_allowed_flag)?;
self.ue(self.nalu.pic_width_in_mbs_minus1)?;
self.ue(self.nalu.pic_height_in_map_units_minus1)?;
self.u(1, self.nalu.frame_mbs_only_flag)?;
if !self.nalu.frame_mbs_only_flag {
self.u(1, self.nalu.mb_adaptive_frame_field_flag)?;
}
self.u(1, self.nalu.direct_8x8_inference_flag)?;
self.u(1, self.nalu.frame_cropping_flag)?;
if self.nalu.frame_cropping_flag {
self.ue(self.nalu.frame_crop_left_offset)?;
self.ue(self.nalu.frame_crop_right_offset)?;
self.ue(self.nalu.frame_crop_top_offset)?;
self.ue(self.nalu.frame_crop_bottom_offset)?;
}
self.u(1, self.nalu.vui_parameters_present_flag)?;
if self.nalu.vui_parameters_present_flag {
self.vui_parameters()?;
}
Ok(())
}
}
impl<'n, W: Write> Synthesizer<'n, Pps, W> {
pub fn synthesize(
ref_idc: u8,
pps: &'n Pps,
writer: W,
ep_enabled: bool,
) -> SynthesizerResult<()> {
let mut s = Self {
writer: NaluWriter::<W>::new(writer, ep_enabled),
nalu: pps,
};
s.writer.write_header(ref_idc, NaluType::Pps as u8)?;
s.pic_parameter_set_rbsp()?;
s.rbsp_trailing_bits()
}
fn pic_parameter_set_rbsp(&mut self) -> SynthesizerResult<()> {
self.ue(self.nalu.pic_parameter_set_id)?;
self.ue(self.nalu.seq_parameter_set_id)?;
self.u(1, self.nalu.entropy_coding_mode_flag)?;
self.u(1, self.nalu.bottom_field_pic_order_in_frame_present_flag)?;
self.ue(self.nalu.num_slice_groups_minus1)?;
if self.nalu.num_slice_groups_minus1 > 0 {
return Err(SynthesizerError::Unsupported);
}
self.ue(self.nalu.num_ref_idx_l0_default_active_minus1)?;
self.ue(self.nalu.num_ref_idx_l1_default_active_minus1)?;
self.u(1, self.nalu.weighted_pred_flag)?;
self.u(2, self.nalu.weighted_bipred_idc)?;
self.se(self.nalu.pic_init_qp_minus26)?;
self.se(self.nalu.pic_init_qs_minus26)?;
self.se(self.nalu.chroma_qp_index_offset)?;
self.u(1, self.nalu.deblocking_filter_control_present_flag)?;
self.u(1, self.nalu.constrained_intra_pred_flag)?;
self.u(1, self.nalu.redundant_pic_cnt_present_flag)?;
if !(self.nalu.transform_8x8_mode_flag
|| self.nalu.pic_scaling_matrix_present_flag
|| self.nalu.second_chroma_qp_index_offset != 0)
{
return Ok(());
}
self.u(1, self.nalu.transform_8x8_mode_flag)?;
self.u(1, self.nalu.pic_scaling_matrix_present_flag)?;
if self.nalu.pic_scaling_matrix_present_flag {
let mut scaling_list_count = 6;
if self.nalu.transform_8x8_mode_flag {
if self.nalu.sps.chroma_format_idc != 3 {
scaling_list_count += 2;
} else {
scaling_list_count += 6;
}
}
for i in 0..scaling_list_count {
// Assume if scaling lists are zeroed that they are not present.
if i < 6 {
if self.nalu.scaling_lists_4x4[i] == [0; 16] {
self.u(1, /* seq_scaling_list_present_flag */ false)?;
} else {
self.u(1, /* seq_scaling_list_present_flag */ true)?;
self.scaling_list(
&self.nalu.scaling_lists_4x4[i],
Self::default_scaling_list(i),
)?;
}
} else if self.nalu.scaling_lists_8x8[i - 6] == [0; 64] {
self.u(1, /* seq_scaling_list_present_flag */ false)?;
} else {
self.u(1, /* seq_scaling_list_present_flag */ true)?;
self.scaling_list(
&self.nalu.scaling_lists_8x8[i - 6],
Self::default_scaling_list(i),
)?;
}
}
}
self.se(self.nalu.second_chroma_qp_index_offset)?;
Ok(())
}
}
#[cfg(test)]
mod tests {
use std::io::Cursor;
use super::*;
use crate::codec::h264::parser::Nalu;
use crate::codec::h264::parser::NaluType;
use crate::codec::h264::parser::Parser;
use crate::codec::h264::parser::Profile;
#[test]
fn synthesize_sps() {
let raw_sps_buf = [0x00, 0x00, 0x00, 0x01, 0x07, 0x00, 0x00, 0x0a, 0xfb, 0x88];
let mut raw_sps = Cursor::new(&raw_sps_buf[..]);
let nalu = Nalu::next(&mut raw_sps).unwrap();
assert_eq!(nalu.header.type_, NaluType::Sps);
let mut parser = Parser::default();
let sps = parser.parse_sps(&nalu).unwrap();
let mut buf = Vec::<u8>::new();
Synthesizer::<'_, Sps, _>::synthesize(0, sps, &mut buf, false).unwrap();
assert_eq!(buf, raw_sps_buf);
let write_to_file = std::option_env!("CROS_CODECS_TEST_WRITE_TO_FILE") == Some("true");
if write_to_file {
let mut out = std::fs::File::create("sps.h264").unwrap();
out.write_all(&buf).unwrap();
out.flush().unwrap();
}
let mut cursor = Cursor::new(&buf[..]);
let nalu = Nalu::next(&mut cursor).unwrap();
let mut parser = Parser::default();
let sps2 = parser.parse_sps(&nalu).unwrap();
assert_eq!(sps, sps2);
}
#[test]
fn synthesize_sps_scaling_lists() {
let sps = Sps {
profile_idc: Profile::High as u8,
seq_scaling_matrix_present_flag: true,
scaling_lists_4x4: [[
11, 20, 10, 20, 10, 22, 10, 20, 10, 20, 13, 20, 10, 20, 10, 24,
]; 6],
scaling_lists_8x8: [
[
33, 20, 10, 21, 33, 20, 12, 20, 33, 23, 10, 20, 33, 20, 10, 20, 33, 24, 10, 20,
33, 20, 15, 20, 33, 20, 10, 26, 33, 20, 17, 20, 33, 28, 10, 20, 33, 20, 10, 20,
33, 29, 10, 20, 33, 20, 11, 20, 33, 20, 10, 20, 33, 20, 10, 20, 33, 20, 10, 20,
33, 20, 10, 20,
],
[
10, 77, 11, 20, 10, 77, 12, 20, 10, 77, 13, 20, 10, 77, 14, 20, 10, 77, 15, 20,
10, 77, 16, 20, 10, 77, 17, 20, 10, 77, 18, 20, 10, 77, 19, 20, 10, 77, 10, 20,
10, 77, 10, 21, 10, 77, 10, 22, 10, 77, 10, 23, 10, 77, 10, 24, 10, 77, 10, 26,
10, 77, 10, 28,
],
[0; 64],
[0; 64],
[0; 64],
[0; 64],
],
frame_mbs_only_flag: true,
..Default::default()
};
let mut buf = Vec::<u8>::new();
Synthesizer::<'_, Sps, _>::synthesize(0, &sps, &mut buf, false).unwrap();
let write_to_file = std::option_env!("CROS_CODECS_TEST_WRITE_TO_FILE") == Some("true");
if write_to_file {
let mut out = std::fs::File::create("sps.h264").unwrap();
out.write_all(&buf).unwrap();
out.flush().unwrap();
}
let mut cursor = Cursor::new(&buf[..]);
let nalu = Nalu::next(&mut cursor).unwrap();
let mut parser = Parser::default();
let sps2 = parser.parse_sps(&nalu).unwrap();
assert_eq!(sps.scaling_lists_4x4, sps2.scaling_lists_4x4);
assert_eq!(sps.scaling_lists_8x8, sps2.scaling_lists_8x8);
}
#[test]
fn synthesize_pps() {
let raw_sps_pps = [
0x00, 0x00, 0x00, 0x01, 0x07, 0x4d, 0x40, 0x0d, 0xa9, 0x18, 0x28, 0x3e, 0x60, 0x0d,
0x41, 0x80, 0x41, 0xad, 0xb0, 0xad, 0x7b, 0xdf, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08,
0xde, 0x09, 0x88,
];
let mut buf = Vec::<u8>::new();
let mut out = Cursor::new(&mut buf);
let mut cursor = Cursor::new(&raw_sps_pps[..]);
let mut parser: Parser = Default::default();
while let Ok(nalu) = Nalu::next(&mut cursor) {
match nalu.header.type_ {
NaluType::Sps => {
let sps = parser.parse_sps(&nalu).unwrap();
Synthesizer::<'_, Sps, _>::synthesize(0, sps, &mut out, false).unwrap();
}
NaluType::Pps => {
let pps = parser.parse_pps(&nalu).unwrap();
Synthesizer::<'_, Pps, _>::synthesize(0, pps, &mut out, false).unwrap();
}
_ => panic!(),
}
}
let write_to_file = std::option_env!("CROS_CODECS_TEST_WRITE_TO_FILE") == Some("true");
if write_to_file {
let mut out = std::fs::File::create("sps_pps.h264").unwrap();
out.write_all(&buf).unwrap();
out.flush().unwrap();
let mut out = std::fs::File::create("sps_pps_ref.h264").unwrap();
out.write_all(&raw_sps_pps).unwrap();
out.flush().unwrap();
}
assert_eq!(buf, raw_sps_pps);
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/64x64-I-P-B-P-high.h264
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crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/64x64-I-P-B-P-high.h264.crc
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43656b2f
c9dd1361
62d34555
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/64x64-I-P-B-P-high.h264.md5
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45ba0c1a27d0ff82fd7a969631adffe6
cee875ded4998c9810a14f9497a11f72
d1e0b9347134ba7a07cbcf249066f022
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/64x64-I-P-B-P.h264
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crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/README.md
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# H.264 Test Data
This document lists the test data used by the H.264 decoder.
Unless otherwise noted, the CRCs were computed using GStreamer's VA-API decoder in
`gst-plugins-bad`.
## 16x16-I.h264
A 16x16 progressive byte-stream encoded I-frame to make it easier to spot errors on the libva trace.
Encoded with the following GStreamer pipeline:
```
gst-launch-1.0 videotestsrc num-buffers=1 ! video/x-raw,format=I420,width=16,height=16 ! \
x264enc ! video/x-h264,profile=constrained-baseline,stream-format=byte-stream ! \
filesink location="/tmp/16x16-I.h264"
```
## 16x16-I-P.h264
A 16x16 progressive byte-stream encoded I-frame and P-frame to make it easier to spot errors on the
libva trace. Encoded with the following GStreamer pipeline:
```
gst-launch-1.0 videotestsrc num-buffers=2 ! video/x-raw,format=I420,width=16,height=16 ! \
x264enc b-adapt=false ! video/x-h264,profile=constrained-baseline,stream-format=byte-stream ! \
filesink location="/tmp/16x16-I-P.h264"
```
## 16x16-I-P-B-P.h264
A 16x16 progressive byte-stream encoded I-P-B-P sequence to make it easier to it easier to spot
errors on the libva trace. Encoded with the following GStreamer pipeline:
```
gst-launch-1.0 videotestsrc num-buffers=3 ! video/x-raw,format=I420,width=16,height=16 ! \
x264enc b-adapt=false bframes=1 ! video/x-h264,profile=constrained-baseline,stream-format=byte-stream ! \
filesink location="/tmp/16x16-I-B-P.h264"
```
## 16x16-I-P-B-P-high.h264
A 16x16 progressive byte-stream encoded I-P-B-P sequence to make it easier to it easier to spot
errors on the libva trace. Also tests whether the decoder supports the high profile. Encoded with
the following GStreamer pipeline:
```
gst-launch-1.0 videotestsrc num-buffers=3 ! video/x-raw,format=I420,width=16,height=16 ! \
x264enc b-adapt=false bframes=1 ! video/x-h264,profile=high,stream-format=byte-stream ! \
filesink location="/tmp/16x16-I-B-P-high.h264"
```
## test-25fps.h264
Same as Chromium's `test-25fps.h264`. The slice data in `test-25fps-h264-slice-data-*.bin` was
manually extracted from GStreamer using GDB.
## test-25fps-interlaced.h264
Adapted from Chromium's `test-25fps.h264`. Same file as above, but encoded as interlaced instead
using the following ffmpeg command:
```
ffmpeg -i \
src/third_party/blink/web_tests/media/content/test-25fps.mp4 \
-flags +ilme+ildct -vbsf h264_mp4toannexb -an test-25fps.h264
```
This test makes sure that the interlaced logic in the decoder actually works, specially that "frame
splitting" works, as the fields here were encoded as frames.
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/gen_crcs.sh
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#!/bin/bash
# Generates the CRCs for all .h264 files in the current directory using ffmpeg.
for f in `ls *.h264`; do
ffmpeg -i $f -pix_fmt nv12 -f framehash -hash crc32 - |grep -v '^#' |awk '{print $6}' >$f.crc
ffmpeg -i $f -pix_fmt nv12 -f framehash -hash md5 - |grep -v '^#' |awk '{print $6}' >$f.md5
done
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ЁЃ`_яяяяяяяяя_щЏ°`Џ}Ў��ЇяяяѓЌ%ђ\jЭaБfїЪwц”[bњѓћУJAПяь1ъШ?‹' ю4€Т_®3Iџ?Р`Wqaц– �6ЙFzzZшХ+ЯяГ0шI`‡Э–2рЛЄ}†-“~ ‘ґшн‚_яьC 88lи5фУг¶в0ЬшkЋЂ
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}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h264/test_data/test-25fps.h264.md5
Vendored
+250
View File
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crates/pf-bitstream/vendor/cros-codecs/src/codec/h265.rs
Vendored
+7
View File
@@ -0,0 +1,7 @@
// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
pub mod dpb;
pub mod parser;
pub mod picture;
crates/pf-bitstream/vendor/cros-codecs/src/codec/h265/dpb.rs
Vendored
+297
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@@ -0,0 +1,297 @@
// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::cell::Ref;
use std::cell::RefCell;
use std::cell::RefMut;
use std::rc::Rc;
use crate::codec::h265::parser::Sps;
use crate::codec::h265::picture::PictureData;
use crate::codec::h265::picture::Reference;
// Shortcut to refer to a DPB entry.
//
// The first member of the tuple is the `PictureData` for the frame.
//
// The second member is the backend handle of the frame.
#[derive(Clone, Debug)]
pub struct DpbEntry<T>(pub Rc<RefCell<PictureData>>, pub T);
pub struct Dpb<T> {
/// List of `PictureData` and backend handles to decoded pictures.
entries: Vec<DpbEntry<T>>,
/// The maximum number of pictures that can be stored.
max_num_pics: usize,
}
impl<T: Clone> Dpb<T> {
/// Returns an iterator over the underlying H265 pictures stored in the
/// DPB.
pub fn pictures(&self) -> impl Iterator<Item = Ref<'_, PictureData>> {
self.entries.iter().map(|h| h.0.borrow())
}
/// Returns a mutable iterator over the underlying H265 pictures stored in
/// the DPB.
pub fn pictures_mut(&mut self) -> impl Iterator<Item = RefMut<'_, PictureData>> {
self.entries.iter().map(|h| h.0.borrow_mut())
}
/// Returns the length of the DPB.
pub fn len(&self) -> usize {
self.entries.len()
}
pub fn is_empty(&self) -> bool {
self.len() == 0
}
/// Get a reference to the whole DPB entries.
pub fn entries(&self) -> &Vec<DpbEntry<T>> {
&self.entries
}
/// Set the dpb's max num pics.
pub fn set_max_num_pics(&mut self, max_num_pics: usize) {
self.max_num_pics = max_num_pics;
}
/// Get a reference to the dpb's max num pics.
pub fn max_num_pics(&self) -> usize {
self.max_num_pics
}
/// Mark all pictures in the DPB as unused for reference.
pub fn mark_all_as_unused_for_ref(&mut self) {
for mut picture in self.pictures_mut() {
picture.set_reference(Reference::None);
}
}
/// Gets the position of `needle` in the DPB, if any.
fn get_position(&self, needle: &Rc<RefCell<PictureData>>) -> Option<usize> {
self.entries
.iter()
.position(|handle| Rc::ptr_eq(&handle.0, needle))
}
/// Finds a reference picture in the DPB using `poc`.
pub fn find_ref_by_poc(&self, poc: i32) -> Option<DpbEntry<T>> {
let position = self
.pictures()
.position(|p| p.is_ref() && p.pic_order_cnt_val == poc);
log::debug!("find_ref_by_poc: {}, found position {:?}", poc, position);
Some(self.entries[position?].clone())
}
/// Finds a reference picture in the DPB using `poc` and `mask`.
pub fn find_ref_by_poc_masked(&self, poc: i32, mask: i32) -> Option<DpbEntry<T>> {
let position = self
.pictures()
.position(|p| p.is_ref() && p.pic_order_cnt_val & mask == poc);
log::debug!("find_ref_by_poc: {}, found position {:?}", poc, position);
Some(self.entries[position?].clone())
}
/// Finds a short term reference picture in the DPB using `poc`.
pub fn find_short_term_ref_by_poc(&self, poc: i32) -> Option<DpbEntry<T>> {
let position = self.pictures().position(|p| {
matches!(p.reference(), Reference::ShortTerm) && p.pic_order_cnt_val == poc
});
log::debug!(
"find_short_term_ref_by_poc: {}, found position {:?}",
poc,
position
);
Some(self.entries[position?].clone())
}
/// Drains the DPB by continuously invoking the bumping process.
pub fn drain(&mut self) -> Vec<DpbEntry<T>> {
log::debug!("Draining the DPB.");
let mut pics = vec![];
while let Some(pic) = self.bump(true) {
pics.push(pic);
}
pics
}
/// Whether the DPB needs bumping. See C.5.2.2.
pub fn needs_bumping(&mut self, sps: &Sps) -> bool {
let num_needed_for_output = self.pictures().filter(|pic| pic.needed_for_output).count();
let highest_tid = sps.max_sub_layers_minus1;
let max_num_reorder_pics = sps.max_num_reorder_pics[usize::from(highest_tid)];
let max_latency_increase_plus1 = sps.max_latency_increase_plus1[usize::from(highest_tid)];
let pic_over_max_latency = self.pictures().find(|pic| {
pic.needed_for_output && pic.pic_latency_cnt >= i32::from(max_latency_increase_plus1)
});
let max_dec_pic_buffering =
usize::from(sps.max_dec_pic_buffering_minus1[usize::from(highest_tid)]) + 1;
num_needed_for_output > max_num_reorder_pics.into()
|| (max_latency_increase_plus1 != 0 && pic_over_max_latency.is_some())
|| self.entries().len() >= max_dec_pic_buffering
}
/// Find the lowest POC in the DPB that can be bumped.
fn find_lowest_poc_for_bumping(&self) -> Option<DpbEntry<T>> {
let lowest = self
.pictures()
.filter(|pic| pic.needed_for_output)
.min_by_key(|pic| pic.pic_order_cnt_val)?;
let position = self
.entries
.iter()
.position(|handle| handle.0.borrow().pic_order_cnt_val == lowest.pic_order_cnt_val)
.unwrap();
Some(self.entries[position].clone())
}
/// See C.5.2.4 "Bumping process".
pub fn bump(&mut self, flush: bool) -> Option<DpbEntry<T>> {
let handle = self.find_lowest_poc_for_bumping()?;
let mut pic = handle.0.borrow_mut();
pic.needed_for_output = false;
log::debug!("Bumping POC {} from the dpb", pic.pic_order_cnt_val);
log::trace!("{:#?}", pic);
if !pic.is_ref() || flush {
let index = self.get_position(&handle.0).unwrap();
log::debug!(
"Removed POC {} from the dpb: reference: {}, flush: {}",
pic.pic_order_cnt_val,
pic.is_ref(),
flush
);
log::trace!("{:#?}", pic);
self.entries.remove(index);
}
Some(handle.clone())
}
/// See C.5.2.3. Happens when we are done decoding the picture.
pub fn needs_additional_bumping(&mut self, sps: &Sps) -> bool {
let num_needed_for_output = self.pictures().filter(|pic| pic.needed_for_output).count();
let highest_tid = sps.max_sub_layers_minus1;
let max_num_reorder_pics = sps.max_num_reorder_pics[usize::from(highest_tid)];
let max_latency_increase_plus1 = sps.max_latency_increase_plus1[usize::from(highest_tid)];
let pic_over_max_latency = self.pictures().find(|pic| {
pic.needed_for_output && pic.pic_latency_cnt >= i32::from(max_latency_increase_plus1)
});
num_needed_for_output > max_num_reorder_pics.into()
|| (max_latency_increase_plus1 != 0 && pic_over_max_latency.is_some())
}
/// Clears the DPB, dropping all the pictures.
pub fn clear(&mut self) {
log::debug!("Clearing the DPB");
let max_num_pics = self.max_num_pics;
*self = Default::default();
self.max_num_pics = max_num_pics;
}
/// Removes all pictures which are marked as "not needed for output" and
/// "unused for reference". See C.5.2.2
pub fn remove_unused(&mut self) {
log::debug!("Removing unused pictures from DPB.");
self.entries.retain(|e| {
let pic = e.0.borrow();
let retain = pic.needed_for_output || pic.is_ref();
log::debug!("Retaining pic POC: {}: {}", pic.pic_order_cnt_val, retain);
retain
})
}
/// Store a picture and its backend handle in the DPB.
pub fn store_picture(
&mut self,
picture: Rc<RefCell<PictureData>>,
handle: T,
) -> Result<(), String> {
if self.entries.len() >= self.max_num_pics {
return Err("Can't add a picture to the DPB: DPB is full.".into());
}
let mut pic = picture.borrow_mut();
log::debug!(
"Stored picture POC {:?}, the DPB length is {:?}",
pic.pic_order_cnt_val,
self.entries.len()
);
if pic.pic_output_flag {
pic.needed_for_output = true;
pic.pic_latency_cnt = 0;
} else {
pic.needed_for_output = false;
}
// C.3.4.
// After all the slices of the current picture have been decoded, this
// picture is marked as "used for short-term reference".
pic.set_reference(Reference::ShortTerm);
drop(pic);
for mut pic in self.pictures_mut() {
pic.pic_latency_cnt += 1;
}
self.entries.push(DpbEntry(picture, handle));
Ok(())
}
/// Returns all the references in the DPB.
pub fn get_all_references(&self) -> Vec<DpbEntry<T>> {
self.entries
.iter()
.filter(|e| e.0.borrow().is_ref())
.cloned()
.collect()
}
}
impl<T: Clone> Default for Dpb<T> {
fn default() -> Self {
// See https://github.com/rust-lang/rust/issues/26925 on why this can't
// be derived.
Self {
entries: Default::default(),
max_num_pics: Default::default(),
}
}
}
impl<T: Clone> std::fmt::Debug for Dpb<T> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let pics = self
.entries
.iter()
.map(|h| &h.0)
.enumerate()
.collect::<Vec<_>>();
f.debug_struct("Dpb")
.field("pictures", &pics)
.field("max_num_pics", &self.max_num_pics)
.finish()
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h265/parser.rs
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crates/pf-bitstream/vendor/cros-codecs/src/codec/h265/picture.rs
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// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use crate::codec::h265::parser::NaluType;
use crate::codec::h265::parser::Slice;
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
pub enum Reference {
#[default]
None,
ShortTerm,
LongTerm,
}
/// Data associated with an h.265 picture. Most fields are extracted from the
/// slice header and kept for future processing.
#[derive(Debug, Default, Clone, Eq, PartialEq)]
pub struct PictureData {
// Fields extracted from the slice header. These are the CamelCase
// variables, unless noted otherwise.
pub nalu_type: NaluType,
pub no_rasl_output_flag: bool,
pub pic_output_flag: bool,
pub valid_for_prev_tid0_pic: bool,
pub slice_pic_order_cnt_lsb: i32,
pub pic_order_cnt_msb: i32,
pub pic_order_cnt_val: i32,
pub no_output_of_prior_pics_flag: bool,
// Internal state.
pub first_picture_after_eos: bool,
reference: Reference,
pub pic_latency_cnt: i32,
pub needed_for_output: bool,
pub short_term_ref_pic_set_size_bits: u32,
}
impl PictureData {
/// Instantiates a new `PictureData` from a slice.
///
/// See 8.1.3 Decoding process for a coded picture with nuh_layer_id equal
/// to 0.
///
/// This will also call the picture order count process (clause 8.3.1) to
/// correctly initialize the POC values.
pub fn new_from_slice(
slice: &Slice,
first_picture_in_bitstream: bool,
first_picture_after_eos: bool,
prev_tid0_pic: Option<&PictureData>,
max_pic_order_cnt_lsb: i32,
) -> Self {
let hdr = &slice.header;
let nalu_type = slice.nalu.header.type_;
// We assume HandleCraAsBlafFLag == 0, as it is only set through
// external means, which we do not provide.
let mut pic_order_cnt_msb = 0;
let slice_pic_order_cnt_lsb: i32 = hdr.pic_order_cnt_lsb.into();
// Compute the output flags:
// The value of NoRaslOutputFlag is equal to 1 for each IDR access
// unit, each BLA access unit, and each CRA access unit that is the
// first access unit in the bitstream in decoding order, is the first
// access unit that follows an end of sequence NAL unit in decoding
// order, or has HandleCraAsBlaFlag equal to 1.
let no_rasl_output_flag = nalu_type.is_idr()
|| nalu_type.is_bla()
|| (nalu_type.is_cra() && first_picture_in_bitstream)
|| first_picture_after_eos;
let pic_output_flag = if slice.nalu.header.type_.is_rasl() && no_rasl_output_flag {
false
} else {
hdr.pic_output_flag
};
// Compute the Picture Order Count. See 8.3.1 Decoding Process for
// Picture Order Count
if !(nalu_type.is_irap() && no_rasl_output_flag) {
if let Some(prev_tid0_pic) = prev_tid0_pic {
// Equation (8-1)
let prev_pic_order_cnt_lsb = prev_tid0_pic.slice_pic_order_cnt_lsb;
let prev_pic_order_cnt_msb = prev_tid0_pic.pic_order_cnt_msb;
if (slice_pic_order_cnt_lsb < prev_pic_order_cnt_lsb)
&& (prev_pic_order_cnt_lsb - slice_pic_order_cnt_lsb)
>= (max_pic_order_cnt_lsb / 2)
{
pic_order_cnt_msb = prev_pic_order_cnt_msb + max_pic_order_cnt_lsb;
} else if (slice_pic_order_cnt_lsb > prev_pic_order_cnt_lsb)
&& (slice_pic_order_cnt_lsb - prev_pic_order_cnt_lsb)
> (max_pic_order_cnt_lsb / 2)
{
pic_order_cnt_msb = prev_pic_order_cnt_msb - max_pic_order_cnt_lsb;
} else {
pic_order_cnt_msb = prev_pic_order_cnt_msb;
}
}
}
// Compute whether this picture will be a valid prevTid0Pic, i.e.:
//
// Let prevTid0Pic be the previous picture in decoding order that has
// TemporalId equal to 0 and that is not a RASL, RADL or SLNR picture.
//
// Use this flag to correctly set up the field in the decoder during
// `finish_picture`.
let valid_for_prev_tid0_pic = slice.nalu.header.nuh_temporal_id() == 0
&& !nalu_type.is_radl()
&& !nalu_type.is_rasl()
&& !nalu_type.is_slnr();
let no_output_of_prior_pics_flag =
if nalu_type.is_irap() && no_rasl_output_flag && !first_picture_in_bitstream {
nalu_type.is_cra() || hdr.no_output_of_prior_pics_flag
} else {
false
};
Self {
nalu_type,
no_rasl_output_flag,
no_output_of_prior_pics_flag,
pic_output_flag,
valid_for_prev_tid0_pic,
slice_pic_order_cnt_lsb,
pic_order_cnt_msb,
// Equation (8-2)
pic_order_cnt_val: pic_order_cnt_msb + slice_pic_order_cnt_lsb,
first_picture_after_eos,
reference: Default::default(),
pic_latency_cnt: 0,
needed_for_output: false,
short_term_ref_pic_set_size_bits: hdr.st_rps_bits,
}
}
/// Whether the current picture is a reference, either ShortTerm or LongTerm.
pub fn is_ref(&self) -> bool {
!matches!(self.reference, Reference::None)
}
pub fn set_reference(&mut self, reference: Reference) {
log::debug!(
"Set reference of POC {} to {:?}",
self.pic_order_cnt_val,
reference
);
self.reference = reference;
}
pub fn reference(&self) -> &Reference {
&self.reference
}
}
crates/pf-bitstream/vendor/cros-codecs/src/codec/h265/test_data/64x64-I-P-B-P.h265
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crates/pf-bitstream/vendor/cros-codecs/src/codec/h265/test_data/64x64-I-P-B-P.h265.crc
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2904d4d2
d8e11777
a1108fed
crates/pf-bitstream/vendor/cros-codecs/src/codec/h265/test_data/64x64-I-P-B-P.h265.md5
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c45648e1d3dd68913e998bd6ddb0f633
8a44f604b2518c6caa7bb422907c8d17
fe6ac1f24e248f3dba54087245380dd8

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