[FFmpeg-devel] [PATCH 1/2] lavf/avienc: Add support for palette side data packets

Mats Peterson matsp888 at yahoo.com
Sun Feb 28 11:37:15 CET 2016


On 02/28/2016 11:31 AM, Mats Peterson wrote:
> On 02/28/2016 11:25 AM, Mats Peterson wrote:
>> On 02/28/2016 11:24 AM, Reimar Döffinger wrote:
>>>> Why is the packet data in AVI packets sometimes zero bytes when using
>>>> stream copy, Michael? There certainly must be some reason for it?
>>>
>>> AVI is fixed frame rate. If you have for example variable frame rate
>>> input empty packets will be used to get the right timing.
>>> I'm not sure that is truly the cause in your case, but it is at least
>>> one possible reason.
>>> _______________________________________________
>>
>> Yeah, that sounds like a possible reason alright. It only happens for
>> AVI, not Quicktime, so...
>>
>> Mats
>>
>> _______________________________________________
>
>
> Speaking of something else, with these patches it should be possible for
> MPlayer to deliver the palette in a side data packet to the FFmpeg AVI
> and QuickTime muxers. I suppose that's part of the reason why you want
> palette side data handling to be implemented in the muxers, Reimar.
>
> Mats
>

or MEncoder, rather.




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