[FFmpeg-devel] [PATCH] AAC decoder channel layout support

[Alex Converse]

On Sun, Oct 11, 2009 at 8:20 AM, Jason Millard <jsm174 at gmail.com> wrote:
>>
>> >
>> > ? ./ffplay -f aac http://sc12.1.fm:7024
>> >
>> > I just removed the patch from nightly and the stream plays again.
>>
>> Plays fine with current svn here. Though SBR is still not supported yet.
>>
>>
> I grabbed the nightly build and tried again. The stream would not play 8
> times in a row. After the 9th time, it played. Sorry.
>
> I spent some time debugging, and it turns out that most of the time (with
> that stream), the first frame sent to aac_decode_frame() does not
> immediately contain the 12-bit FFF. It then goes into element type while
> loop, and then everything gets out of sync and just won't play.
>
> My solution was just to return with a -1 if the FFF is not immediately
> present. I'm sure this isn't probably a great solution, but the stream now
> plays every single time.
>

So the demuxer is borked? It's the demuxer's job to pass full frames
to the decoder.