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Release the audio lock early

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The final write from the writer thread does not require a lock: it is
guaranteed that enough space is available since the reader thread never
writes.
This commit is contained in:
Romain Vimont 2024-06-09 19:25:32 +02:00
parent 5d1d5bdc16
commit 9ea4446369
1 changed files with 4 additions and 2 deletions
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6
app/src/audio_player.c
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@ -194,7 +194,11 @@ sc_audio_player_frame_sink_push(struct sc_frame_sink *sink,
// Still insufficient, drop old samples to make space
skipped_samples = sc_audiobuf_read(&ap->buf, NULL, remaining);
assert(skipped_samples == remaining);
}
SDL_UnlockAudioDevice(ap->device);
if (written < samples) {
// Now there is enough space
uint32_t w = sc_audiobuf_write(&ap->buf,
swr_buf + TO_BYTES(written),
@ -202,8 +206,6 @@ sc_audio_player_frame_sink_push(struct sc_frame_sink *sink,
assert(w == remaining);
(void) w;
}
SDL_UnlockAudioDevice(ap->device);
}
uint32_t underflow = 0;