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Code Issues Releases Wiki Activity

interleaved AVI: audio preload PTS compensation 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1456 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2001-08-06 23:59:22 +00:00
parent 9f9d214281
commit bed9711530
1 changed files with 23 additions and 1 deletions
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24
demux_avi.c
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@ -58,6 +58,11 @@ demux_stream_t* demux_avi_select_stream(demuxer_t *demux,unsigned int id){
return NULL;
}
static float pts_correction=0.0;
static int pts_corrected=0;
static int pts_has_video=0;
static unsigned int pts_corr_bytes=0;
static int demux_avi_read_packet(demuxer_t *demux,unsigned int id,unsigned int len,int idxpos,int flags){
int skip;
float pts=0;
@ -66,7 +71,21 @@ static int demux_avi_read_packet(demuxer_t *demux,unsigned int id,unsigned int l
if(verbose>=3) printf("demux_avi.read_packet: %X\n",id);
if(ds==demux->audio){
pts=avi_audio_pts;
if(pts_corrected==0){
// printf("\rYYY-A A: %5.3f V: %5.3f \n",avi_audio_pts,avi_video_pts);
if(pts_has_video){
// we have video pts now
float delay=(float)pts_corr_bytes/((sh_audio_t*)(ds->sh))->wf->nAvgBytesPerSec;
printf("XXX initial v_pts=%5.3f a_pos=%d (%5.3f) \n",avi_audio_pts,pts_corr_bytes,delay);
//pts_correction=-avi_audio_pts+delay;
pts_correction=delay-avi_audio_pts;
pts_corrected=1;
} else
pts_corr_bytes+=len;
}
pts=avi_audio_pts+pts_correction;
avi_audio_pts=0;
} else
if(ds==demux->video){
@ -94,7 +113,10 @@ static int demux_avi_read_packet(demuxer_t *demux,unsigned int id,unsigned int l
avi_video_pts+=(float)((sh_video_t*)(demux->video->sh))->video.dwScale/(float)((sh_video_t*)(demux->video->sh))->video.dwRate;
// avi_video_pts+=avi_video_ftime;
#endif
// printf("\rYYY-V A: %5.3f V: %5.3f \n",avi_audio_pts,avi_video_pts);
avi_audio_pts=avi_video_pts;
pts_has_video=1;
}
// len=stream_read_dword_le(demux->stream);