Hi!
The newest firmware for FF cards did not completely fix the AV desync problems
for me. According to information from Werner the problem happens when small
video frames fill the decoder buffer with over 2 seconds of data. So I made
this patch for dvbplayer.c to stop it from uploading more PES frames to decoder
when STC/PTS difference is more than 2 seconds. This seems to fix the remaining
problems for me, but I have not tested it much. The PTS/STC-code has been
mostly taken from the dvb-subtitles plugin. Comments, please
Ville
--- dvbplayer.c.orig 2007-01-31 18:21:42.000000000 +0200
+++ dvbplayer.c 2007-01-31 18:35:36.000000000 +0200
@@ -495,6 +495,51 @@
}
}
if (p) {
+ if(playMode == pmPlay && pc > 13)
+ {
+ int64_t stc = -1;
+ int64_t pts = -1;
+
+ if ( p[0] == 0x00 && p[1] == 0x00 && p[2] == 0x01)
+ {
+ if(p[7] & 0x80)
+ {
+ switch( p[3] )
+ {
+ case 0xE0 ... 0xEF: // video
+ case 0xC0 ... 0xDF: // audio
+ pts = (int64_t) (p[ 9] & 0x0E) << 29 ;
+ pts |= (int64_t) p[ 10] << 22 ;
+ pts |= (int64_t) (p[ 11] & 0xFE) << 14 ;
+ pts |= (int64_t) p[ 12] << 7 ;
+ pts |= (int64_t) (p[ 13] & 0xFE) >> 1 ;
+ }
+ }
+ }
+ if(pts != -1)
+ {
+ cDevice *pd = cDevice::PrimaryDevice();
+ if(pd)
+ {
+ stc = pd->GetSTC();
+ if(stc != 0)
+ {
+ if(pts & (int64_t)1<<32)
+ {
+ stc |= (int64_t)1<<32;
+ }
+ int64_t timeDiff = (pts-stc);
+ if (pts<stc)
+ {
+ timeDiff += (int64_t)1<<33;
+ }
+ timeDiff /= 90;
+ if(timeDiff > 2000)
+ cCondWait::SleepMs(timeDiff - 2000);
+ }
+ }
+ }
+ }
int w = PlayPes(p, pc, playMode != pmPlay);
if (w > 0) {
p += w;
_______________________________________________
vdr mailing list
vdr@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
