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[client/idd] network: discard stale audio after stalls

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Keep PCM and its clock sample in cancellable datagrams so recovery
cannot replay audio buffered before a Wi-Fi stall.

Drop blocked real-time packets with an explicit discontinuity and make
a newer reconnect supersede stale audio authorities.
This commit is contained in:
Geoffrey McRae
2026-10-08 22:51:47 +11:00
parent b1dda92f09
commit 0b0f227c08
11 changed files with 341 additions and 700 deletions
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16
client/tests/lgmp_audio_test.c
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@@ -150,21 +150,23 @@ static unsigned audioSampleBytes(LG_AudioSampleFormat format)
}
static void playbackData(void * opaque, uint32_t generation,
const void * data, size_t frames, const LG_AudioClock * clock)
const void * data, size_t frames, const LG_AudioClock * clock,
bool discontinuity)
{
struct Trace * trace = opaque;
(void)discontinuity;
pthread_mutex_lock(&trace->mutex);
trace->playGeneration = generation;
trace->playFrames = frames;
const size_t bytes = frames * trace->playFormat.channelCount *
trace->playGeneration = generation;
trace->playFrames = frames;
const size_t bytes = frames * trace->playFormat.channelCount *
audioSampleBytes(trace->playFormat.sampleFormat);
const size_t copy = bytes < sizeof(trace->playData) ?
const size_t copy = bytes < sizeof(trace->playData) ?
bytes : sizeof(trace->playData);
memset(trace->playData, 0, sizeof(trace->playData));
memcpy(trace->playData, data, copy);
trace->playClockValid = clock != NULL;
trace->playClockValid = clock != NULL;
if (clock)
trace->playClock = *clock;
trace->playClock = *clock;
pthread_mutex_unlock(&trace->mutex);
traceEvent(trace, TRACE_PLAY_DATA, generation);
atomic_fetch_add_explicit(&trace->playDataCount, 1,