[FFmpeg-devel] 回复: Possibility to add tonemap filter to ffmpeg 3.2.7

[Li Jinyao]

Thanks, I am trying pick tonemap changes back, and I found tonemap relay on single precision planar RGB pixel formats like AV_PIX_FMT_GBRPF32, which means I need to pick these code, too.
 I am working on it now, but I am not sure if there are a lot work to do to make 3.2.4 support these pixel formats and what else work may I need to do to make it work. Can you give me some advice?

李金尧

> 在 2021年3月24日，下午1:27，Gyan Doshi <ffmpeg at gyani.pro> 写道：
> 
> 
> 
>> On 2021-03-24 08:17, Li Jinyao wrote:
>> The patches for the custom feature are in a private cvs, it's about 400+ commits. I tried to link against 4.3.1, found about 10 functions are missing.
>> If it hard to add tone map back, maybe patch these feature to a newer ffmpeg version is more feasible?
> 
> tonemap was added in v3.4. So try to cherry-pick that initial commit, and then try to achieve close to equivalency of the current state by inlining missing functions.
> 
> Regards,
> Gyan
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