[FFmpeg-soc] AAC Encoding - Where we stand, what's left

[Alex Converse]

On Wed, Jul 8, 2009 at 2:36 PM, Diego Biurrun<diego at biurrun.de> wrote:
> On Wed, Jul 08, 2009 at 01:49:59PM -0400, Alex Converse wrote:
>> On Wed, Jul 8, 2009 at 6:52 AM, Kostya<kostya.shishkov at gmail.com> wrote:
>> > On Wed, Jul 08, 2009 at 12:25:09PM +0200, Diego Biurrun wrote:
>> >> On Mon, Jul 06, 2009 at 10:38:55PM -0400, Alex Converse wrote:
>> >> > On Mon, Jul 6, 2009 at 9:28 PM, Diego Biurrun<diego at biurrun.de> wrote:
>> >> > > On Mon, Jul 06, 2009 at 09:14:00PM -0400, Alex Converse wrote:
>> >> > >>
>> >> > >> To be frank, at this point it seems like it might be prudent for me to
>> >> > >> stop working on this
>> >> > >
>> >> > > Uh, why?
>> >> >
>> >> > Getting faac free (by dropping long forgotten profiles and
>> >> > reimplementing things from spec), seem like less effort than getting
>> >> > FFmpeg to faac quality (running around trying to fix bugs in someone
>> >> > else's codebase). Building on 26.410 v8.0.0 is attractive because it
>> >> > is already better quality than ffmpeg and faac and includes a working
>> >> > SBR implementation which would require tons of work to add to ffmpeg
>> >> > or faac.
>> >>
>> >> What is "26.410 v8.0.0", where can I find it and how is it licensed?
>> >
>> > 3GPP TS 26.410 aka AAC encoder floating point code. Guess license by
>> > yourself ;)
>>
>> All of the encoder source lacks copyright notices/licensing terms
>>
>> >From the Documentation:
>>
>> No part may be reproduced except as authorized by written permission.
>> The copyright and the foregoing restriction extend to reproduction in all media.
>>
>> © 2008, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC).
>> All rights reserved.
>>
>> >From the build system:
>>
>> # Copyright (c) Coding Technologies 2003
>> # All Rights Reserved
>
> So this is completely nonfree, you may neither modify nor distribute it.
> This is not something you can use as a base for your work unless you
> wish to throw your time away...
>

Let's not forget that lame started out as a dist10 patchset. Libfaac
has two incompatible licenses.