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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.
This commit is contained in:
Romain Vimont 2025-02-22 11:20:35 +01:00
parent ea4c076345
commit 8925bdc8fd
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) {
underflow = atomic_exchange_explicit(&ar->underflow, 0,
memory_order_relaxed);
ar->underflow_report += underflow;
max_buffered_samples = ar->target_buffering * 11 / 10
+ 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;
diff = CLAMP(diff, -abs_max_diff, abs_max_diff);
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);
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->received, false);
atomic_init(&ar->underflow, 0);
ar->underflow_report = 0;
ar->compensation_active = false;
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
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)
bool compensation_active;