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Report underflow samples in verbose mode

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Report the number of silence samples inserted due to underflow every
second, along with the other metrics.

PR #5870 <https://github.com/Genymobile/scrcpy/pull/5870>
This commit is contained in:
Romain Vimont 2025-02-22 11:20:35 +01:00
commit 1d25338119
2 changed files with 8 additions and 1 deletions
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6
app/src/audio_regulator.c
View file

@ -213,6 +213,7 @@ sc_audio_regulator_push(struct sc_audio_regulator *ar, const AVFrame *frame) {
if (played) { if (played) {
underflow = atomic_exchange_explicit(&ar->underflow, 0, underflow = atomic_exchange_explicit(&ar->underflow, 0,
memory_order_relaxed); memory_order_relaxed);
ar->underflow_report += underflow;
max_buffered_samples = ar->target_buffering * 11 / 10 max_buffered_samples = ar->target_buffering * 11 / 10
+ 60 * ar->sample_rate / 1000 /* 60 ms */; + 60 * ar->sample_rate / 1000 /* 60 ms */;
@ -315,7 +316,9 @@ sc_audio_regulator_push(struct sc_audio_regulator *ar, const AVFrame *frame) {
int abs_max_diff = distance / 50; int abs_max_diff = distance / 50;
diff = CLAMP(diff, -abs_max_diff, abs_max_diff); diff = CLAMP(diff, -abs_max_diff, abs_max_diff);
LOGV("[Audio] Buffering: target=%" PRIu32 " avg=%f cur=%" PRIu32 LOGV("[Audio] Buffering: target=%" PRIu32 " avg=%f cur=%" PRIu32
" compensation=%d", ar->target_buffering, avg, can_read, diff); " compensation=%d (underflow=%" PRIu32 ")",
ar->target_buffering, avg, can_read, diff, ar->underflow_report);
ar->underflow_report = 0;
int ret = swr_set_compensation(swr_ctx, diff, distance); int ret = swr_set_compensation(swr_ctx, diff, distance);
if (ret < 0) { if (ret < 0) {
@ -398,6 +401,7 @@ sc_audio_regulator_init(struct sc_audio_regulator *ar, size_t sample_size,
atomic_init(&ar->played, false); atomic_init(&ar->played, false);
atomic_init(&ar->received, false); atomic_init(&ar->received, false);
atomic_init(&ar->underflow, 0); atomic_init(&ar->underflow, 0);
ar->underflow_report = 0;
ar->compensation_active = false; ar->compensation_active = false;
return true; return true;

3
app/src/audio_regulator.h
View file

@ -46,6 +46,9 @@ struct sc_audio_regulator {
// Number of silence samples inserted since the last received packet // Number of silence samples inserted since the last received packet
atomic_uint_least32_t underflow; atomic_uint_least32_t underflow;
// Number of silence samples inserted since the last log
uint32_t underflow_report;
// Non-zero compensation applied (only used by the receiver thread) // Non-zero compensation applied (only used by the receiver thread)
bool compensation_active; bool compensation_active;