[FFmpeg-devel] [PATCH v5 1/4 v3] lavf/avienc: Add support for palette side data

Mats Peterson matsp888 at yahoo.com
Fri Mar 4 22:02:28 CET 2016

On 03/04/2016 09:52 PM, Mats Peterson wrote:
> On 03/04/2016 08:44 PM, Michael Niedermayer wrote:
>> On Fri, Mar 04, 2016 at 11:59:11AM +0100, Mats Peterson wrote:
>>> On 03/04/2016 05:59 AM, Mats Peterson wrote:
>>>> Removed some unused variables in AVIStream.
>>> I would like to remind you of the fact that this patch (and the one
>>> for riffenc.c) is needed for stream copying of Microsoft Video 1
>>> (CRAM) in 8-bit mode, Microsoft RLE4 and Microsoft RLE8. There are
>>> possibly more codecs using a palette, but these are the ones I can
>>> come up with at the moment.
>> i tried CRAM and MSRLE, but these already work when streamcopied
>> before, do you have a testcase that does not work
> It works, but only so much. On stream copy, it will only write the
> palette after BITMAPINFOHEADER to the destination file. It won't write
> any xxpc palette switching chunks to the file.
> Mats
The xxpc chunks come as palette side data.


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