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

From: Francois-Xavier KOWALSKI
Subject: Re: [Linphone-developers] Difference between video profiles "MP4V-ES" and "H264"
Date: Tue, 18 Dec 2007 15:51:32 +0100
User-agent: Thunderbird (X11/20071031)

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

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