Re: [Linphone-developers] Difference between video profiles "MP4V-ES" and "H264"

[Andreas Pretzsch]

Ok, I'm back in sync, thanks. Mixed up the suffixes.

MP4V-ES refers to profiles like MPEG4-SP and -ASP, which are to some 
extent compatible to H.263.
H264 refers to MPEG4/AVC.


Am Dienstag 18 Dezember 2007 15:51 schrieb Francois-Xavier KOWALSKI:
> mp4v-es is MPEG-4 Part 2. MPEG-4 Part 10 is AVC, which is the same as
> H.264. H.264 and MPEG-4 Part 2 are different & incompatible codecs.
>
> Andreas Pretzsch wrote:
> > I'm a bit puzzled regarding the difference between the video
> > codecs "MP4V-ES" and "H264".
> >
> > Both peers I have in use as reference
> >         CounterPath EyeBeam (Windows SoftPhone)
> >         Grandstream GXV-3000
> > support H.264 in different flavours, while linphone supports
> > MP4V-ES.
> >
> > To my current understanding, H.264 and MPEG4 AVC baseline profile
> > are comparable to a large extent.
> >
> > During negotiation, video codec selection fails because of
> > MP4V-ES != H264.
> > The question is, is it just a matter of naming or do I have to dig
> > deeper into this ?

-- 

carpe noctem engineering
Ingenieurbuero fuer Hard- & Software-Entwicklung Andreas Pretzsch
Dipl.-Ing. (FH) Andreas Pretzsch                 Tel. 0731/98588-800
Marlene-Dietrich-Strasse 5                       Fax: 0731/98588-801
89231 Neu-Ulm                                    email: address@hidden