[FFmpeg-user] Apple icod

[Thomas Worth]

On Wed, Oct 26, 2011 at 9:39 AM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Asai <asai <at> globalchangemusic.org> writes:
>
>> Have compiled latest FFMPEG in order to be able to decode Apple ProRes.
>> However,  when I try to convert to H264 from what I thought was ProRes,
>> I get a 'Invalid pixel format string '-1'' message, and ffmpeg tells me
>> that the video type is 'icod,' which is Apple's Intermediate Codec.  I
>> though they were the same thing?
>
> No:
> http://wiki.multimedia.cx/index.php?title=Icod
> http://wiki.multimedia.cx/index.php?title=Apple_ProRes
>
> Apple Intermediate is not supported by FFmpeg.
>
> There are two ProRes decoder, both are LGPL. The default one (former GPL
> decoder) is faster than the fork's decoder.
>
> Concerning the duplicated efforts: This was of course one of the "goals" of
> the fork, if somebody claims the opposite, please don't trust him!

Then would your recommendation be to use the "prores" decoder rather
than "prores_lgpl?" If it's faster, and the output the same, then
there doesn't seem to be any need to use "prores_lgpl" as long as
they're both LGPL.