There is ongoing work to implement the ACELP codecs in ffmpeg, this includes AMR, G.729, and RealAudio SIPR. This is quite a large project as there are many variants of this codec.
Contributors are welcome to submit patches to the ffmpeg-devel mailing list. Those who wish to contribute may want to start by debugging some of the existing patches which are listed on the ffmpeg wiki at http://wiki.multimedia.cx/index.php?title=Interesting_Patches
It is possible to compile and link ffmpeg against the 3GPP reference code (libamr). This library does not have an appropriate open-source license, and will not be included in debian or ubuntu, so please don't ask.
There is ongoing work to implement the ACELP codecs in ffmpeg, this includes AMR, G.729, and RealAudio SIPR. This is quite a large project as there are many variants of this codec.
The current (incomplete) code is available in the ffmpeg svn: http:// svn.mplayerhq. hu/ffmpeg/ trunk/libavcode c/ The files are g729* and acelp* The work from the Summer of Code project is in http:// svn.mplayerhq. hu/soc/ amr/
Contributors are welcome to submit patches to the ffmpeg-devel mailing list. Those who wish to contribute may want to start by debugging some of the existing patches which are listed on the ffmpeg wiki at http:// wiki.multimedia .cx/index. php?title= Interesting_ Patches
It is possible to compile and link ffmpeg against the 3GPP reference code (libamr). This library does not have an appropriate open-source license, and will not be included in debian or ubuntu, so please don't ask.