On 03/01/14 17:38, wm4 wrote:
> On Thu, 2 Jan 2014 01:07:45 +0000 (UTC)
> Timothy Gu <[email protected]> wrote:
> 
>> I just cam across AV_PIX_FMT_YUVJ* and I'm surprised that they are
>> "deprecated":
>>
>> AV_PIX_FMT_YUVJ420P,  ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), 
>> deprecated in favor of PIX_FMT_YUV420P and setting color_range
>>
>> git blame shows that they were deprecated in 2010, and no FF_API guards were
>> added in the deprecation commit. Is it really true that these enum values are
>> deprecated? If so, why are they still here? If not so, I'll probably send a
>> patch that really deprecates them.
>>
>> Timothy
>>
>> P.S. I wanted to send this email to libav-api, but now I think that this is
>>      more of a devel problem, so yeah.
> 
> They're deprecated yes, but apparently still needed. FFmpeg even added
> new J formats (which were deprecated immediately). One problem is that
> not everything handles color_range correctly. Some FFmpeg devs are
> arguing that some libavfilter filters can handle only full range YUV,
> so the J are supposedly still needed.
> 
> It's one of these cases where something has been deprecated for years
> with no clear migration path and without actually removing the
> requirement from application code to deal with the deprecated features.
> Sad.

Now there is a volunteer and you seem to have strong opinion about this,
what about trying to figure out a good migration path?

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