[FFmpeg-user] Prores 444 being detected by quicktime as 422?

[Robert Krüger]

On Mon, Sep 10, 2012 at 7:07 PM, Robert Krüger <krueger at lesspain.de> wrote:
> On Mon, Sep 10, 2012 at 6:17 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
>> Sam Marrocco <smarrocco <at> ringsidecreative.com> writes:
>>
>>> Carl is the first person to suggest that ffmpeg cannot
>>> create yuv444 (which helps the mystery a bit).
>>
>> I tried very hard to suggest that FFmpeg is able to create
>> yuv444 ProRes files.
>> Please provide your failing prores_kostya command line
>> together with complete, uncut console output.
>>
>
> It does not set the correct fourcc. It should be ap4h but it is apcn
> (which is the fourcc for prores 422). Quicktime and other apple
> software (like Final Cut) more or less blindly trust the fourcc. I
> tried overriding it with -vtag but that didn't work either:
>
looking at the code, it looks as if Prores 4444 is not modeled as a
profile at all (see variable prores_profile_info), so it never sets
the correct fourcc.