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alsa: fix timefilter usage. 

The period argument is supposed to be the number of samples since
the last update.
This commit is contained in:
Nicolas George 2012-03-02 11:54:45 +01:00
parent 9bbe6ed1e0
commit 456d65a5c6
2 changed files with 3 additions and 1 deletions
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3
libavdevice/alsa-audio-dec.c
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@ -123,7 +123,8 @@ static int audio_read_packet(AVFormatContext *s1, AVPacket *pkt)
dts = av_gettime();
snd_pcm_delay(s->h, &delay);
dts -= av_rescale(delay + res, 1000000, s->sample_rate);
pkt->pts = ff_timefilter_update(s->timefilter, dts, res);
pkt->pts = ff_timefilter_update(s->timefilter, dts, s->last_period);
s->last_period = res;
pkt->size = res * s->frame_size;

1
libavdevice/alsa-audio.h
View File

@ -52,6 +52,7 @@ typedef struct {
int period_size; ///< preferred size for reads and writes, in frames
int sample_rate; ///< sample rate set by user
int channels; ///< number of channels set by user
int last_period;
TimeFilter *timefilter;
void (*reorder_func)(const void *, void *, int);
void *reorder_buf;