[MPlayer-dev-eng] Patch to fix seeking in H264 TS

Loren Merritt lorenm at u.washington.edu
Fri Feb 15 23:34:17 CET 2008


On Fri, 15 Feb 2008, Nico Sabbi wrote:
> On Friday 15 February 2008 05:27:50 Ian Rickards wrote:
>>
>> mplayer doesn't seek in BBC HD H.264 transport streams; when you
>> try to seek it gets stuck looping forever in demux_seek_ts waiting
>> for a 0x105 packet that doesn't ever arrive.  The following fixes
>> it, and matches the code on line 239 of video.c to sync to a mpeg
>> slice:
>>
>> demux_ts.c
>> @@ -3164,7 +3167,7 @@
>>                         break;
>>                 else    //H264
>>                 {
>> -                       if((i & ~0x60) == 0x105) break;
>> +                       if((i & ~0x60) == 0x105 || (i & ~0x60) ==
>> 0x102 || (i & ~0x60) == 0x101) break; }
>>
>>                 if(!i || !skip_video_packet(d_video)) break; //
>> EOF?
>>
>
> I don't remember what are NALs 01 and 02; remind me, please

1: normal slice
2: slice with data partitioning (3 and 4 are also for data partitioning, 
but 2 comes first in the bitstream)
5: IDR slice

--Loren Merritt



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