[MPlayer-dev-eng] mjpeg yuv422 output from mencoder/mplayer

[Baptiste Coudurier]

Hi

Michael Niedermayer a écrit :
> Hi
> 
> On Sat, Sep 30, 2006 at 12:46:58PM +0200, Karolina Lindqvist wrote:
>> I need something that outputs the MJPEG YUV422 format, that the zoran (zr, 
>> zr2) drivers need, but I find nothing in the mencoder/mplayer programs that 
>> can output that format to disc. 
>>
>> I tried mencoder with -lavcopts vcodec=mjpeg which almost appears to do the 
>> job. Except for that it does not accept format=422p. It can only do YV12 
>> (YUV420).
> 
> a patch which adds 422p jpeg encoding support to lavc would be welcome ...
> 
> [...]

Tried to. I have at least something working in progressive. Problem is 
that mpegvideo.c is really hardcoded to 4:2:0 and since DCT on jpeg is 
done on 8x8 mb it is quite hard to work around that.

If you have a clean idea in mind I would rearrange the code and submit it.

-- 
Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
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