Best way to convert MOV, RM, AVI, WMV,MPEG to 3GP, 3G2, MP4?

susanraphael · n00b Joined: 22 Apr 2005 Posts: 2

spam removed, kept rest of thread here.
amne

gimpel · Posted: Thu Mar 09, 2006 9:40 am Post subject:

gotaserena · Posted: Thu Mar 09, 2006 2:40 pm Post subject:

damn spammers...

You have to compile ffmpeg with amr support for this to work. I'm not sure whether portage has a useflag for that. I've made a script that downloads cvs and compiles the amr source with ffmpeg, but recently ffmpeg's cvs has been broken more often than not. I guess you should be able to modify ffmpeg's ebuild to download and include amr sources, but I've been too busy to see to this.

Incidentally, my cellphone and quicktime have no trouble with mpeg4 (libavcodec) in 3gp files, as long as I don't use anything fancy (like b-frames, qpel or gmc). You can also use "-s sqcif" for "-s 128x96" and "-s qcif" for "-s 176x144" as these are popular .3gp file sizes.

drphibes · Guru Joined: 30 Nov 2004 Posts: 432

raazzzin · n00b Joined: 04 May 2006 Posts: 1

Hi,

The links above help w/ encoding to 3GP - but what about for 3G2. 3G2 uses QCP (QCELP) for the audio instead of AMR.

Any idea if FFMPEG can support this and if not, any suggestions for how to do this via command-line on Windows (preferably) or Linux.

Thanks.

Raj