[FFmpeg-cvslog] r22301 - in trunk/libavformat: avformat.h utils.c

[Alex Converse]

On Sat, Sep 25, 2010 at 8:42 AM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> alexc <subversion <at> mplayerhq.hu> writes:
>
>> Log:
>> av_find_stream_info(): Add a workaround for backwards compatible HE-AAC
> signaling.
>>
>> The sample rate, frame size, and channel count from the container are
>> not reliable when backwards compatible signaling is used.
>
> This broke audio stream detection of a 300 MB mp4 file containing AAC.
> http://takafansubs.com/torrents/%5BTaka%5D_Naruto_Shippuuden_178_%5B720p%5D%5BA3D1078C%5D.mp4.torrent
> (300MB, issue 2246)
>
> Carl Eugen
>

See https://roundup.ffmpeg.org/issue2053

The alternative is faad style guessing for unsignalled SBR.