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A-V sync cleanup: sh_audio->timer replaced by sh_audio->delay, it contains

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delay relative to sh_video->timer (or to 0 if audioonly).
It fixes ct: drifts of very long (several hours) playback.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8057 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-11-02 19:52:59 +00:00
parent 9d07488b0a
commit 74b6f07e68
5 changed files with 19 additions and 20 deletions
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6
libmpdemux/demux_audio.c
View File

@ -295,7 +295,7 @@ void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
}
if(len > 0)
high_res_mp3_seek(demuxer,len);
sh_audio->timer = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
sh_audio->delay = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
resync_audio_stream(sh_audio);
return;
}
@ -307,13 +307,13 @@ void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
pos = base + (rel_seek_secs*sh_audio->i_bps);
if(demuxer->movi_end && pos >= demuxer->movi_end) {
sh_audio->timer = (stream_tell(s) - demuxer->movi_start)/(float)sh_audio->i_bps;
sh_audio->delay = (stream_tell(s) - demuxer->movi_start)/(float)sh_audio->i_bps;
return;
} else if(pos < demuxer->movi_start)
pos = demuxer->movi_start;
priv->last_pts = (pos-demuxer->movi_start)/(float)sh_audio->i_bps;
sh_audio->timer = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
sh_audio->delay = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
switch(priv->frmt) {
case WAV:

3
libmpdemux/demux_demuxers.c
View File

@ -73,8 +73,7 @@ void demux_demuxers_seek(demuxer_t *demuxer,float rel_seek_secs,int flags) {
// In case the demuxer don't set pts
if(!demuxer->audio->pts)
demuxer->audio->pts = pos-((ds_tell_pts(demuxer->audio)-sh->a_in_buffer_len)/(float)sh->i_bps);
if(sh->timer)
sh->timer = 0;
sh->delay = 0;
}
if(priv->sd != priv->vd)

2
libmpdemux/demuxer.c
View File

@ -1135,7 +1135,7 @@ if(!demuxer->seekable){
#if 0
if(sh_audio) sh_audio->timer=sh_video->timer;
#else
if(sh_audio) sh_audio->timer=0;
if(sh_audio) sh_audio->delay=0;
if(sh_video) sh_video->timer=0; // !!!!!!
#endif

2
libmpdemux/stheader.h
View File

@ -46,7 +46,7 @@ typedef struct {
struct codecs_st *codec;
unsigned int format;
int inited;
float timer; // value of old a_frame
float delay; // value of old a_frame
// output format:
int sample_format;
int samplerate;

26
mplayer.c
View File

@ -1349,7 +1349,7 @@ if(sh_audio){
current_module="av_init";
if(sh_video) sh_video->timer=0;
if(sh_audio) sh_audio->timer=-audio_delay;
if(sh_audio) sh_audio->delay=-audio_delay;
if(!sh_audio){
mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_NoSound);
@ -1414,7 +1414,7 @@ while(sh_audio){
current_module="play_audio";
ao_data.pts=sh_audio->timer*90000.0;
ao_data.pts=((sh_video?sh_video->timer:0)+sh_audio->delay)*90000.0;
playsize=audio_out->get_space();
// handle audio-only case:
@ -1445,7 +1445,7 @@ while(sh_audio){
if(playsize>0){
sh_audio->a_out_buffer_len-=playsize;
memmove(sh_audio->a_out_buffer,&sh_audio->a_out_buffer[playsize],sh_audio->a_out_buffer_len);
sh_audio->timer+=playback_speed*playsize/((float)((ao_data.bps && sh_audio->afilter) ?
sh_audio->delay+=playback_speed*playsize/((float)((ao_data.bps && sh_audio->afilter) ?
ao_data.bps : sh_audio->o_bps));
}
@ -1455,8 +1455,8 @@ while(sh_audio){
if(!sh_video) {
// handle audio-only case:
if(!quiet) mp_msg(MSGT_AVSYNC,MSGL_STATUS,"A:%6.1f %4.1f%% %d%% \r"
,sh_audio->timer-audio_out->get_delay()
,(sh_audio->timer>0.5)?100.0*audio_time_usage/(double)sh_audio->timer:0
,sh_audio->delay-audio_out->get_delay()
,(sh_audio->delay>0.5)?100.0*audio_time_usage/(double)sh_audio->delay:0
,cache_fill_status
);
if(d_audio->eof) eof = PT_NEXT_ENTRY;
@ -1482,12 +1482,13 @@ if(!sh_video) {
if(in_size<0){ eof=1; break; }
if(in_size>max_framesize) max_framesize=in_size; // stats
sh_video->timer+=frame_time;
if(sh_audio) sh_audio->delay-=frame_time;
time_frame+=frame_time; // for nosound
// check for frame-drop:
current_module="check_framedrop";
if(sh_audio && !d_audio->eof){
float delay=playback_speed*audio_out->get_delay();
float d=(sh_video->timer)-(sh_audio->timer-delay);
float d=delay-sh_audio->delay;
// we should avoid dropping to many frames in sequence unless we
// are too late. and we allow 100ms A-V delay here:
if(d<-dropped_frames*frame_time-0.100){
@ -1573,13 +1574,12 @@ if(!sh_video) {
* sync to settle at the right value (but it eventually will.)
* This settling time is very short for values below 100.
*/
float predicted = sh_audio->timer-sh_video->timer+time_frame;
float predicted = sh_audio->delay+time_frame;
float difference = delay - predicted;
delay = predicted + difference / (float)autosync;
}
time_frame=sh_video->timer;
time_frame-=sh_audio->timer-delay;
time_frame=delay-sh_audio->delay;
// delay = amount of audio buffered in soundcard/driver
if(delay>0.25) delay=0.25; else
@ -1693,7 +1693,7 @@ if(time_frame>0.001 && !(vo_flags&256)){
* value here, even a "corrected" one, would be incompatible with
* autosync mode.)
*/
delay=sh_audio->timer-sh_video->timer;
delay=sh_audio->delay;
delay+=(float)sh_audio->a_buffer_len/(float)sh_audio->o_bps;
}
@ -1742,7 +1742,7 @@ if(time_frame>0.001 && !(vo_flags&256)){
max_pts_correction=default_max_pts_correction;
else
max_pts_correction=sh_video->frametime*0.10; // +-10% of time
if(!frame_time_remaining){ sh_audio->timer+=x; c_total+=x;} // correction
if(!frame_time_remaining){ sh_audio->delay+=x; c_total+=x;} // correction
if(!quiet) mp_msg(MSGT_AVSYNC,MSGL_STATUS,"A:%6.1f V:%6.1f A-V:%7.3f ct:%7.3f %3d/%3d %2d%% %2d%% %4.1f%% %d %d %d%%\r",
a_pts-audio_delay-delay,v_pts,AV_delay,c_total,
(int)sh_video->num_frames,(int)sh_video->num_frames_decoded,
@ -1897,7 +1897,7 @@ if (stream->type==STREAMTYPE_DVDNAV && dvd_nav_still)
float v = cmd->args[0].v.f;
audio_delay += v;
osd_show_av_delay = 9;
if(sh_audio) sh_audio->timer+= v;
if(sh_audio) sh_audio->delay+= v;
} break;
case MP_CMD_PAUSE : {
osd_function=OSD_PAUSE;
@ -2591,7 +2591,7 @@ if(rel_seek_secs || abs_seek_pos){
guiIntfStruct.Position=(len <= 0? 0.0f : ( pos - demuxer->movi_start ) * 100.0f / len );
}
if ( sh_video ) guiIntfStruct.TimeSec=d_video->pts;
else if ( sh_audio ) guiIntfStruct.TimeSec=sh_audio->timer;
else if ( sh_audio ) guiIntfStruct.TimeSec=sh_audio->delay;
guiGetEvent( guiReDraw,NULL );
guiGetEvent( guiSetVolume,NULL );
if(guiIntfStruct.Playing==0) break; // STOP