[Ffmpeg-devel] Re: [BUG] mpegaudiodec.c is broken since revision 6098

[Sebastian Freundt]

Michael Niedermayer <michaelni at gmx.at> writes:

> Hi
>
> On Mon, Aug 28, 2006 at 12:47:00AM +0300, Uoti Urpala wrote:
>> On Sun, 2006-08-27 at 23:30 +0200, Michael Niedermayer wrote:
>> > On Sun, Aug 27, 2006 at 01:29:44PM +0000, Sebastian Freundt wrote:
>> > > >> Using -ac ffmp3 in mplayer for playing low bitrate mp3 files results in lots
>> > > >> of error messages and corrupted sound:
>> > > >> overread, skip 29 A-V:  0.980 ct:  0.305 598/598  1%  0%  1.6% 0 0
>> 
>> > not reproduceable with any mp3 i have tried, so i need a sample
>> > file which shows this behavior (=corrupted sound not just some error
>> > messages)
>> 
>> The error messages look like he's using MPlayer with a file that has
>> video too.
>
> indeed, i should look more closely at bugreports ...
>
>
>> Didn't you remove direct support for non-packetized bitstream
>
> yes
>
>
>> (log message looked like that, I didn't look more closely)? Maybe he's
>> playing a VBR avi where the avi audio packets do not correspond to mp3
>> packets or something similar.
>
> the problem is though the error messages dont look like the packetization
> feeded into the decoder was wrong (i would expect more errors in that case),
> it rather looks like the bitstream itself is wrong, i do have a few of these
> too but none sounded corrupted. to make it more tricky, i think my code is 
> "buggy" for the case that the overread happens during a buffer switch but
> id like to have a sample for testing ...

I've sent you one by email.

Sebastian