[Mageia-dev] cinelerra/audiokonverter/arista (war Re: rehashing the faac issue)

[Christiaan Welvaart]

On Thu, 1 Nov 2012, PhilippeDidier wrote:

> Christiaan Welvaart a écrit :
>> On Wed, 31 Oct 2012, PhilippeDidier wrote:
>>
>>> I don't know actually how to create *.aac files or *.mp4 files with
>>> Mageia... if you help me I will be happy...
>>
>> ffmpeg -i foo.mp3 -strict -2 -codec:a aac -format adts foo.aac
>>
>> But AFAIK this uses the ffmpeg internal aac codec which isn't very good.
>>   -codec:a libvo_aacenc      produces garbage, no idea why
>>
>> About arista: someone decided to use the internal ffmpeg lib from
>> gstreamer-ffmpeg for gstreamer0.10-ffmpeg which broke arista. Now arista
>> must be ported to gstreamer1.0 .

> You can understand, now, if you need to create aac or mpa or mp4 files :
> that faac works
> that softwares built with it work too
> that nothing inside Mageia work (libvo_aacenc is really bad quality when
> it doesn't produce garbages)

It is a problem with the .aac file format combined with this codec. It 
works fine with bitrate 192kbit/s just not with anything lower. The codec 
also works with any bitrate when output to mp4 (aka quicktime movie) 
files. Or are you saying you do not like the audio quality of this codec?

> What do you propose then ?

Try it yourself and complain to ffmpeg developers if something you need 
doesn't work.

There is now also fdk-aac which is supposed to be good. It has a special 
license that is somewhat similar to the GPL, may be compatible or not.


     Christiaan