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

Wed Oct 31 21:01:19 CET 2012

Christiaan Welvaart a écrit :
+> On Wed, 31 Oct 2012, PhilippeDidier wrote:
+> 
+>> Christiaan Welvaart a écrit :
+>>> We are not going to carry faac just for convenience to build
+>>> applications locally. Handbrake, another application that supposedly
+>>> needs faac, is also GPL licensed so cannot be distributed linked against
+>>> faac. Arista in mageia supports encoding AAC without faac.
+>>> Audiokonverter appears to use mplayer for encoding so it should be able
+>>> to use ffmpeg for AAC. Anything else?
+> 
+>> You're wrong about audiokonverter :
+>> it uses faac to encode into *.aac files
+> 
+> I don't know what .aac files are (format), will check.
+That's compressed audio files (for ipod for instance)
+That's also the audiotrack format for MPEG4
+
+> 
+>> I proposed the two patches to have it in Mageia:
+> 
+> Saw that in the bugreport (:
+> 
+>> About Arista :
+>> I tried Arista to create an *.aac file : it complains about missing
+>> elements...
+>> Could you really create *.aac files ? or did you only read what it is
+>> supposed to do.
+> I only tried to transcode video with aac audio track, not audio only.
+> 
+Do you mean transcode video with aac audio track into other format
+(that's already allowed, thanks to faad provided by Mageia)
+or transcode an existing video (with mp3 audio track for instance) into
+video with aac audio track (that is not allowed with Mageia2 whichever
+software you use : avidemux, vlc, mencoder, gstreamer, ffmpeg)
+>> Arista uses gstreamer... and, in Mageia, gstreamer-plugins in tainted
+>> are built without faac, I wonder what is missing on my computer to be
+>> able to do what you did !!!
+> libavcodec from tainted and gstreamer-ffmpeg/gstreamer-libav
+>    - this depends on libvo-aacenc
+> + arista 0.9.7-4
+
+So you use cauldron ;)
+
+Mageia2 has arista 0.9.7.2
+I have too libavcodec from tainted, libvo-aaenc, gstreamer-ffmpeg (can't
+find any gstreamer-libav on Mageia2)
+Is the new built gstreamer on cauldron allowing to create mp4 or aac
+files now ?
+
+> 
+>> About Cinelerra and Handbrake : everything is GPL licensed except the
+>> ISO specification they need to be built ...
+>> provided as bundled in hanbrake (reason why it was banned from
+>> Mageia-tainted)
+>> and required as BuildRequire : faac-devel for cinelerra, preventing to
+>> build it for Mageia
+>>
+>> And Yes absolutely there's a contamination with a non-free source (how
+>> the hell an ISO MPEG4 norma could be GPL ?!!!! )
+> AFAIK it's code, not the standard itself
+> 
+
+> 
+>     Christiaan
+> 
+Perhaps Cauldron provides something now for this aac encoding problem...
+that's  good news for Mageia3
+but I will have to wait and see : I must use the stable Mageia2 on my
+everyday computer... (with some workarounds ;)  ) until Mageia3 appears
+
+Regards
+
+Philippe
+
+