[Ffmpeg-devel] [BUG] libavformat mp3 in mp4 with fourcc mp4a

[compn]

hello, while checking a sample in mplayer, i came across a libavformat problem
libavformat detects 'mp4a' fourcc in mp4 as aac always, but mplayer detects
mp4a as mp3 and/or aac when appropriate.

you can check the sample at http://home.twmi.rr.com/compn/163.mp4
its 3mb. i have 11mb of the file, or 'the wanderer' has a complete sample.
these encodes are made by the kaizoku-fansubs group...

the audio plays correctly using mplayer 163.mp4 -demuxer 35 -ac +ffmp3

some mplayer output, the only thing different between an mp4a aac and mp4a mp3
was the elementary stream descriptor atom...

> AAC:
> MOV track #0: 105 chunks, 948 samples
> Audio bits: 16  chans: 2  rate: 44100
> MOV: Found MPEG4 audio Elementary Stream Descriptor atom (51)!
> Fourcc: mp4a
> 
> MP3:
> MOV track #1: 2886 chunks, 0 samples
> Audio bits: 16  chans: 2  rate: 48000
> MOV: Found MPEG4 audio Elementary Stream Descriptor atom (35)!
> Fourcc: mp4a

verified ffplay detects aac audio. is there a way to force codecs with ffplay?

-compn