P3 decode science: every AU is stamped as its last piece enters the codec, so
the decode stage splits into feed (received→queued: hand-off + input-slot wait)
and codec (queued→decoded: the decoder alone — a slice head start would show
here). The split + an always-on capture→decoded e2e ride the 1 Hz pf-present
line, so a wireless HUD-off A/B reads everything from logcat; the HUD equation
gains the split (indices 30/31), the skipped counter tells benign newest-wins
pacing from parked-AU overflow (32), and a −2-refresh Apple-HUD-equivalent twin
makes iPhone comparisons honest (Apple shaves its OS floor; Android shows raw).
Connect now logs the per-mime decoder picks + FEATURE_PartialFrame verdicts
(tag pf.caps) — on the NP3 all three c2.qti low-latency decoders say no, so
parts delivery never arms and P2d is inert there; a debug.punktfunk.force_parts
sysprop overrides the probe for the on-glass question the API cannot answer.
Forced on glass: c2.qti accepts PARTIAL_FRAME pieces without erroring but only
assembles them — codec time unchanged, so the overlap is dead on SM8735 either
way.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Break the 1747-line clients/android/native/src/decode.rs into a decode/ directory
module (mod.rs + 5 concern submodules):
- decode/setup.rs : codec creation + low-latency config + thread/frame-rate
tuning + HDR static-info encode
- decode/display.rs : DisplayTracker + render-callback registration + HDR dataspace
- decode/latency.rs : realtime clock + decoded-pts / user-flags stat recording
- decode/sync_loop.rs : the synchronous poll decode loop (+ feed/drain) — moved WHOLE
- decode/async_loop.rs : the event-driven async decode loop (+ helpers) — moved WHOLE
decode/mod.rs keeps the consts, DecodeOptions, and the `run` entry point + the
`codec_mime`/`codec_label` re-export, so every crate::decode::X path stays byte-stable.
The module has no decoder struct (free functions + small types), so both decode loops
move byte-for-byte and their separately-inlined received-stat recording is NOT unified.
16 helper fns/types became pub(super) for sibling access; zero field bumps. lib.rs
unchanged (`#[cfg(target_os="android")] mod decode;` resolves to decode/mod.rs).
Verified: cargo-ndk check (aarch64-linux-android, clean) + the gradle cargoNdkDebug
build (arm64-v8a / armeabi-v7a / x86_64). On-device runtime re-verification still owed
per the plan (the two decode loops are a hot path).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehlerandClaude Fable 5