[Ffmpeg-devel] [RFC] rtjpeg and NuppelVideo decoder/demuxer

Luca Barbato lu_zero
Tue Feb 7 21:21:28 CET 2006

Reimar D?ffinger wrote:
> Hi,
> the attached patch adds $subject to ffmpeg (well, actually it is a patch
> against MPlayer with libav* and untested on ffmpeg itself).
> The reason I'm posting this is that there is one thing I dislike but
> I do not know a good solution.
> The problem is, codec specific data, like the quantization tables for
> rtjpeg are "normal" packets, and at least the MPlayer demuxer passes
> them around as such.
> I very much prefer to have them as extradata, also because otherwise
> with MPlayer's approach there actually aren't any real keyframes - no
> single video packet contains _all_ the data to decode a full frame.
> Also, when the packet contains codec data, it does not encode any frame.
> Is there a way the codec should indicate this?

You have the same problem with xiph codecs in chained ogg and, no, I
don't know any good/better solution.



Luca Barbato

Gentoo/linux Developer		Gentoo/PPC Operational Leader

More information about the ffmpeg-devel mailing list