Hi,

I'm a little bit desperate I need to convert a video to a mp4 format with aac but my ffmpeg does not support AAC, how can I solve it? Thanks

I use a Ubuntu Feisty.

Did you try installing faac and faad like I mentioned in your previous thread? "apt-get install faac faad". ffmpeg doesn't do AAC directly, it uses the faac/faad libraries to do the conversions.

If you watch the output whenever you run ffmpeg, it first gives you a long list of "--enable-libxxx" entries. Each of those is a separate external library that the program can call up to process different formats and codecs. You should see "--enable-libfaac" and "--enable-libfaad" somewhere in there. If not (highly unlikely), then your version of ffmpeg can't handle the AAC format and you'll have to get one that does.

Thanks a lot!!

I'm gonna try doing all you've recommended me

David, I have downloaded a version of ffmpeg that supports aac. Ok, I configure it. But when I run "make" I get this error message:

"make -C libavcodec all
make[1]: se ingresa al directorio `/home/joseangel/libavcodec'
gcc -O3 -g -DHAVE_AV_CONFIG_H -I.. -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o common.o /home/joseangel/Desktop/ffmpeg-0.4.9-pre1/libavcodec/common.c
In file included from /home/joseangel/Desktop/ffmpeg-0.4.9-pre1/libavcodec/avcodec.h:14,
from /home/joseangel/Desktop/ffmpeg-0.4.9-pre1/libavcodec/common.c:28:
/home/joseangel/Desktop/ffmpeg-0.4.9-pre1/libavcodec/common.h:67: error: el tipo matriz tiene tipo de elemento incompleto
/home/joseangel/Desktop/ffmpeg-0.4.9-pre1/libavcodec/common.h:71: error: el tipo matriz tiene tipo de elemento incompleto
make[1]: *** [common.o] Error 1
make[1]: se sale del directorio `/home/joseangel/libavcodec'
make: *** [lib] Error 2"

Do you have any idea of what's wrong?

I'm not exactly sure. Compiling from source can be tricky. Also, the Spanish error messages are a little difficult to interpret.

One thing that's necessary is to make sure you also have the development packages for all the libraries you use installed; it won't warn you during the configure stage. The development files, or headers, aren't necessary when running a program, but they are needed when compiling. In this case, you need to have both libavcodec and libavcodec-dev installed on your system before you start. Be sure to do the same for all the other libraries it asks for.

If you still have problems after trying that, I don't know how to help you.

There are probably more convenient options than compiling from source though. I don't know exactly where to direct you for Ubuntu, but I'm sure there are some apt sources out there with precompiled packages you can download. Try searching this forum or asking in the Ubuntu section for more info.

And if you find one, please let me know. I've been considering trying out Kubuntu myself soon and I may be needing it myself.

Ok, thanks David, I think it's gonna be hard lol