[vdr] index.vdr misses pictures

Werner ws at seh.de
Sun Nov 6 13:13:34 CET 2005


On Sunday 06 November 2005 10:58, Reinhard Nissl wrote:
> Hi,
>
> Werner wrote:
> > in recent recording from premiere i saw that not all pictures in
> > the data stream are indexed in index.vdr. The displayed movie lenghts are
> > slightly to short and the cutmarks in marks.vdr are wrong. I use
> > marks.vdr in an external program. The resulting cutted movies are
> > sometimes about 1-2 minutes too short. This does not affect normal
> > vdr users too much because vdr cutted movies have the right len.
> >
> > Im not an mpeg expert, so only some speculations:
> > It looks that every index.vdr entry points to an "packet start code"
> > (0x000001). Vdr assumes that every packet has mostly one picture start
> > code. The difference i saw between old recordings and new recordings
> > is that in new recordings are sometimes two picture start codes in a
> > packet. The second one is dropped by vdr.
> > I have no idea of how to fix this assuming that vdr can only resume
> > on a packet start code. Anyone any idea?
>
> If you were right, then cVideoRepacker is buggy. Are you shure that you
> see two picture start codes (0x00000100) in one PES-Packet?
>
> Bye.

yes, thats what i saw. My app demuxes the data stream (with the help
of some libmpeg2 code) and two printfs show that sometimes (<5%) there are
two picture start codes in a packet.

/Werner





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