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[changfeng niu]

Hi Dave
thanks.
Becuase i want unicast the h263+ stream through Darwin stream server,
only the stream in  mp4 file format can be supported by Darwin server.
So i modify Mpeg4Creator to support H263+, I have got it. However, I
am not sure how to define timestamp in mpe4 file for h263+ by ms or
frequency. In mp4creator, The defination of timestamp is different
between H263 and Mpeg4(H264). H263 use miliseconds and Mpeg4 use
frequence. I don't know why to do so.
2007/1/17, Dave Singer <singer apple.com>:
> At 11:30  +0000 17/01/07, Dave Singer wrote:
> >At 11:36  +0800 17/01/07, changfeng niu wrote:
> >>Hi everyone
> >>Do anyone know the definition of H263 in mp4 file format or some
> >>document including these definition?
> >>thank you very much  in advance.
> >>Nathan.niu
> >>
> >>______________
> >
> >Defined in 3GPP 26.244, the 3GPP file format, available free from
> >www.3gpp.org.
> >
> >(Technically there is a 'short header' mode of MPEG-4 part 2 which
> >is technically identical to H.263, but no-one uses it).
>
> I should have said "no-one (as far as I know) uses MP4 files with
> MPEG-4 video code-points but using short header MPEG-4 video as a way
> of exchanging H.263 video".  I didn't mean to imply that no-one
> worldwide uses mpeg-4 short headers (I do not have universal
> knowledge, of course).
> --
> David Singer
> Apple Computer/QuickTime
>