[FFmpeg-user] ProRes encoding: Question about FFmpeg docs

[Paul B Mahol]

On 3/12/18, Moritz Barsnick <barsnick at gmx.net> wrote:
> On Mon, Mar 12, 2018 at 08:24:26 +0100, Peter B. wrote:
>> But now I know:
>>
>>   * -c:v prores_ks: uses the documented profile strings
>>   * -c:v prores_aw (=prores): seems to work only with integers (not in the
>> documentation/nor help)
>
> Indeed.
>
>> [prores_aw @ 0x36fdc40] unknown profile -1, use [0 - apco, 1 - apcs, 2 -
>> apcn (default), 3 - apch]
>
> Ah, interesting, I didn't actually *try* the encoder.
>
>> btw: for "encoder=prores" or "encoder=prores_aw", this doesn't provide
>> much information:
>>
>> Encoder prores_aw [Apple ProRes]:
>>     General capabilities: threads
>>     Threading capabilities: frame
>>     Supported pixel formats: yuv422p10le
>
> Ah, that's interesting. That's due to the fact that prores_ks chose to
> implement their own encoder-specific options for profile, while
> prores_aw uses the value from ffmpeg's global option. (Confusing? A
> bit, but shouldn't be to the user.)
>
> Consequently, at least the valid profiles should be documented.
> Furthermore, a proposal to implement prores_aw's profiles so that they
> a) accepts strings, and b) document themselves automatically would be
> nice. (Should be easy to implement, not sure if it would be accepted. I
> would do it, but don't have the time today. ;-))

prores_aw gonna be removed.