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Stats HUD (mirrors the Apple client): the decode thread accumulates FPS, receive throughput, and capture->client latency (p50/p95, skew-corrected) in Rust (clients/android/native/src/stats.rs); nativeVideoStats drains a snapshot ~1 Hz over JNI as a DoubleArray. StreamScreen renders a Compose overlay (W*H@Hz / fps / Mb/s / latency, + dropped-under-loss), toggled by a Settings switch (persisted, default on) or a 3-finger tap. Performance (decode.rs): - ANativeWindow_setFrameRate(refresh_hz): align display vsync to the stream rate (no 60-in-120 judder); safe since minSdk 31 >= API 30. - Raise the decode thread toward URGENT_DISPLAY (best-effort setpriority) so background work can't preempt it under load. - Codec low-latency hints KEY_PRIORITY=0 (realtime) + KEY_OPERATING_RATE. Verified host-side: cargo build/clippy/fmt --workspace (the ungated stats + JNI accessor). The android-gated decode.rs (NDK) and the Kotlin build only in CI (android.yml: gradle + cargo-ndk) -- APIs verified against crate sources. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
38 lines
1.9 KiB
TOML
38 lines
1.9 KiB
TOML
[package]
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name = "punktfunk-client-android"
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description = "punktfunk Android client — JNI bridge ('nativecore') over punktfunk-core (Rust-heavy client model)"
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version.workspace = true
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edition.workspace = true
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rust-version.workspace = true
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license.workspace = true
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authors.workspace = true
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repository.workspace = true
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[lib]
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# `libpunktfunk_android.so` — loaded by Kotlin via `System.loadLibrary("punktfunk_android")`.
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name = "punktfunk_android"
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crate-type = ["cdylib"]
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[dependencies]
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# The whole protocol/transport/FEC/crypto + the embeddable NativeClient connector. `quic` pulls
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# the punktfunk/1 control plane (now ring-only — no aws-lc, see punktfunk-core/Cargo.toml).
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punktfunk-core = { path = "../../../crates/punktfunk-core", features = ["quic"] }
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jni = "0.21"
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log = "0.4"
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# Android-only deps. Gated so `cargo build --workspace` on the Linux/macOS dev boxes + CI still
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# compiles this crate (as a host cdylib) — the Android-framework glue (logging now; AMediaCodec via
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# `ndk` and Oboe/Opus audio later) is only pulled in for the real `*-linux-android` targets.
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[target.'cfg(target_os = "android")'.dependencies]
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android_logger = "0.14"
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# NDK bindings. "media" = AMediaCodec/ANativeWindow (video); "audio" = AAudio (audio playback).
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# Pure-Rust FFI to libmediandk/libnativewindow/libaaudio — no C++/libc++_shared to bundle. Decode +
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# audio run entirely in Rust on native threads (the "no async on the hot path" invariant).
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ndk = { version = "0.9", features = ["media", "audio"] }
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# setpriority/gettid to raise the decode thread toward URGENT_DISPLAY (see decode::boost_thread_priority).
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libc = "0.2"
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# Opus decode for the host→client audio plane (0xC9: 48 kHz stereo, 5 ms frames). Same crate the
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# host + Linux client use. audiopus_sys vendors libopus (pure C) and builds it static via cmake —
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# the cargo-ndk build sets LIBOPUS_STATIC=1/LIBOPUS_NO_PKG=1 so it links the bundled lib, not the host's.
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opus = "0.3"
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