[Ffmpeg-cvslog] r6213 - in trunk: Changelog MAINTAINERS doc/ffmpeg-doc.texi libavcodec/Makefile libavcodec/allcodecs.c libavcodec/avcodec.h libavcodec/vp5.c libavcodec/vp56.c libavcodec/vp56.h libavcodec/vp56data.c libavcodec/vp56data.h libavcodec/vp5data.h libavcodec/vp6.c libavcodec/vp6data.h libavformat/flvdec.c libavformat/nsvdec.c libavformat/riff.c libavformat/swf.c

Måns Rullgård mru
Thu Sep 14 01:28:10 CEST 2006

Baptiste Coudurier <baptiste.coudurier at smartjog.com> writes:

> M?ns Rullg?rd wrote:
>>>>>>>> [...]
>>>>>>>> Is defining a new codec id the only way to identify VP6 in flash ? It
>>>>>>>> seems it uses the same function to decode. Why not using CODEC_ID_VP6 ?
>>>>>>> The there is a horizontally flipped relation between them. And there
>>>>>>> isn't a clean way of joining them to one codec id so the simplest
>>>>>>> solution is to use 2 id's.
>>>>>>> MvH
>>>>>>> Benjamin Larsson
>>>>>> Humm, it seems this issue has been discussed already. What was decided ?
>>>>>> I can't get if it was decided to use a new codec id or not.
>>>>>> Personnaly I don't like that VP6F codec id. I would be more in favor of
>>>>>> setting a field or sub id or a flag in avctx, or maybe put those 2 bytes
>>>>>> from the flv in extradata or something to identify it.
>>>>>> What do you guys think ?
>>>>> Nobody cares ? Oh well...
>>>> I do.  If it is the same codec, it should use the same ID.  What was
>>>> the difference again?
>>> One is vertically flipped, the other is not.
>>> And there is nothing in the codec bitstream to detect if it is flipped.
>> Time for a new flag, perhaps.
> I would be more in favor, also maybe using codec_tag from avi to handle
> that special case (or is it flv) ?

A CODEC_FLAG_FLIPPED or similar would be much more generic.

M?ns Rullg?rd
mru at inprovide.com

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