Re: [Linphone-developers] H.264 Codecs

[Jonathan Rosser]

On 05/31/12 03:37, Ketan Tang wrote:
> Dear Mike,
> 
> Linphone has an individual codec called msx264 which is the "plugin
> based on x264". So I guess avcodec-53.dll doesn't contain H.264. 
> 
> When building ffmpeg, I think you can select certain codecs. 
> 
> Regards,
> Arthur Tang

Both encode and decode functions are required, and are provided by
different libraries.

msx264 provides the h264 encoder for linphone via a plugin to
mediastreamer2.

ffmpeg/avcodec provides the decoder, via built in mediastreamer2
functionality.

You need both parts to be present to support h264 video calls.
Mediastreamer2 checks that both and encoder and decoder are available
for a particular "codec" type before enabling that type.

Jonathan.