[MPlayer-dev-eng] Re: [PATCH] avc1 in X-QT over RTSP

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Jan 10 02:49:48 CET 2007


On 2006-10-19 16:26, Carl Eugen Hoyos wrote:
> Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:
> 
> > > > But this reference contains three streams (strings ...):
> > > > 
http://stream.qtv.apple.com/events/aug/wwdc_2006/wwdc_2006_2_650_ref.mov
> > > > 
> > > > The first has to be played with -fps 8, the others with -fps 30
> > > > (Patch for frame rate detection follows.)
> 
> One more change to fix possible endless loop:
> 
> Index: libmpdemux/demux_rtp_codec.cpp
> ===================================================================
> --- libmpdemux/demux_rtp_codec.cpp      (Revision 20307)
> +++ libmpdemux/demux_rtp_codec.cpp      (Arbeitskopie)
> @@ -86,6 +86,27 @@
>      } while (!parseQTState_video(qtRTPSource->qtState, fourcc));
> 
>      bih->biCompression = sh_video->format = fourcc;
> +    bih->biWidth = qtRTPSource->qtState.width;
> +    bih->biHeight = qtRTPSource->qtState.height;
> +    if (bih->biCompression == mmioFOURCC('a','v','c','1')) {
> +      uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
> +      uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
> +                        + qtRTPSource->qtState.sdAtomSize;
> +      while (pos+8 < endpos) {
> +        unsigned atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
> +        if (atomLength == 0 || atomLength > endpos-pos) break;
> +        if (memcmp(pos+4, "avcC", 4) == 0 

Since this patch is necessary to play todays Keynote: Could someone please 
review it?

Thank you, Carl Eugen



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