[FFmpeg-devel] [PATCH]Force the right extradata for AVCI50 h264 Intra

[Kieran Kunhya]

On 9 Jul 2013 01:23, "Carl Eugen Hoyos" <cehoyos at ag.or.at> wrote:
>
> Kieran Kunhya <kierank <at> obe.tv> writes:
>
> > > Attached patch fixes ticket #2106, remuxing
> > > (as h264) also works fine.
> > >
> > > Please comment, Carl Eugen
> >
> > Probably OK. Does AVIn only refer to 1080 line AVC-Intra?
>
> I don't know / don't remember.
>
> > Or should you also have a check for 720p as well?
>
> I believe other formats work fine, only AVCI50
> needs this hack to force the correct extradata.
> (iirc, it has been some time since I wrote this
> patch.)
> But maybe "other formats" are all 1080 lines.
>
> > I have been reverse engineering this format
> > in order to encode it in x264 and it's a total
> > mess...
>
> So do you know the exact meaning of all bytes
> in the ARES atom?
> (Specifically, do you know the stream types
> that the 11th byte is referring to?)
>
> Carl Eugen

I have only been reverse engineering AVC-Intra in mxf so I have not come
across the ARES atom.