[FFmpeg-user] mpeg4 part2 ,

farzaneh tabataba f.s.tabataba81 at gmail.com
Fri Jul 6 22:25:25 CEST 2012


Dear Michael

Thanks alot, yes , But my professor didn;t accepted my answer. I also
googles this topic co much. would you please tell me the link of this
document? I want to show this to my professor and couldn't find such table.

thanks :)

On Fri, Jul 6, 2012 at 9:30 PM, Michael Bradshaw <
mbradshaw at sorensonmedia.com> wrote:

> On Fri, Jul 6, 2012 at 10:53 AM, farzaneh tabataba
> <f.s.tabataba81 at gmail.com> wrote:
> > Dear friends
> >
> > Hello
> > I have a question, Would you please answer my question?
> > We want to compress a dataset, with Mpeg4 part2, and we want to save the
> > chroma subsampling ratio to 4:2:2.( the chroma subsampling for source
> file
> > is also 4:2:2).
> >
> > Which software do you suggest  for doing this compression? Does
> Mpeg4-part2
> > support 4:2:2, or only mpeg4_part 10 support 4:2:2?
> > we tried avanti, but it says 4:2:2 is not compatible with mpeg4.
>
> You just asked this question, and it was answered:
>
> http://ffmpeg.org/pipermail/ffmpeg-user/2012-July/007699.html
> http://ffmpeg.org/pipermail/ffmpeg-user/2012-July/007707.html
>
> But I just googled for you and read part of the MPEG-4 Part 2
> document. Page 111, table 6-13, under chroma_format shows that 4:2:0
> is the only format supported.
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