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deobfuscate some a/v sync code

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17648 b3059339-0415-0410-9bf9-f77b7e298cf2
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ods15 2006-02-19 04:31:14 +00:00
parent 8f51734daf
commit 0d29a779f8
1 changed files with 15 additions and 14 deletions
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29
mencoder.c
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@ -1274,29 +1274,30 @@ if(demuxer2){ // 3-pass encoding, read control file (frameno.avi)
// check frame duplicate/drop:
//printf("\r### %5.3f ###\n",v_timer_corr);
float mux_frametime = (float)mux_v->h.dwScale/mux_v->h.dwRate;
if(v_timer_corr>=(float)mux_v->h.dwScale/mux_v->h.dwRate &&
(skip_limit<0 || skip_flag<skip_limit) ){
v_timer_corr-=(float)mux_v->h.dwScale/mux_v->h.dwRate;
if (v_timer_corr >= mux_frametime && (skip_limit<0 || skip_flag < skip_limit)) {
v_timer_corr-=mux_frametime;
++skip_flag; // skip
} else
while(v_timer_corr<=-(float)mux_v->h.dwScale/mux_v->h.dwRate &&
(skip_limit<0 || (-skip_flag)<skip_limit) ){
v_timer_corr+=(float)mux_v->h.dwScale/mux_v->h.dwRate;
}
while (v_timer_corr <= -mux_frametime && (skip_limit<0 || -skip_flag < skip_limit)) {
v_timer_corr+=mux_frametime;
--skip_flag; // dup
}
while( (v_pts_corr<=-(float)mux_v->h.dwScale/mux_v->h.dwRate && skip_flag>0)
|| (v_pts_corr<=-2*(float)mux_v->h.dwScale/mux_v->h.dwRate) ){
v_pts_corr+=(float)mux_v->h.dwScale/mux_v->h.dwRate;
// either v_pts_corr is big, more than 2 times framerate, then we follow its advice,
// or, it cancels out v_timer_corr, in which case be happy and do nothing.
while ((v_pts_corr <= -mux_frametime && skip_flag > 0) || (v_pts_corr <= -2*mux_frametime)) {
v_pts_corr+=mux_frametime;
--skip_flag; // dup
}
if( (v_pts_corr>=(float)mux_v->h.dwScale/mux_v->h.dwRate && skip_flag<0)
|| (v_pts_corr>=2*(float)mux_v->h.dwScale/mux_v->h.dwRate) )
if(skip_flag<=0){ // we can't skip more than 1 frame now
v_pts_corr-=(float)mux_v->h.dwScale/mux_v->h.dwRate;
if ((v_pts_corr >= mux_frametime && skip_flag < 0) || (v_pts_corr >= 2*mux_frametime)) {
if (skip_flag<=0) { // we can't skip more than 1 frame now
v_pts_corr-=mux_frametime;
++skip_flag; // skip
}
}
} // demuxer2