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avplay: use a separate buffer for playing silence

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This commit is contained in:
Justin Ruggles 2011-10-11 15:49:39 -04:00
parent f08e54e83d
commit e2a2c49fcd
1 changed files with 3 additions and 3 deletions
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6
avplay.c
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@ -157,6 +157,7 @@ typedef struct VideoState {
compensation */ compensation */
DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]; DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
uint8_t *audio_buf; uint8_t *audio_buf;
unsigned int audio_buf_size; /* in bytes */ unsigned int audio_buf_size; /* in bytes */
int audio_buf_index; /* in bytes */ int audio_buf_index; /* in bytes */
@ -2129,9 +2130,8 @@ static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
audio_size = audio_decode_frame(is, &pts); audio_size = audio_decode_frame(is, &pts);
if (audio_size < 0) { if (audio_size < 0) {
/* if error, just output silence */ /* if error, just output silence */
is->audio_buf = is->audio_buf1; is->audio_buf = is->silence_buf;
is->audio_buf_size = 1024; is->audio_buf_size = sizeof(is->silence_buf);
memset(is->audio_buf, 0, is->audio_buf_size);
} else { } else {
if (is->show_audio) if (is->show_audio)
update_sample_display(is, (int16_t *)is->audio_buf, audio_size); update_sample_display(is, (int16_t *)is->audio_buf, audio_size);