[FFmpeg-devel] mp3 seeking issue.

[Reimar Döffinger]

On 21 Oct 2012, at 07:13, "Don Moir" <donmoir at comcast.net> wrote:

>> I just noticed that if you seek into a loud section (anywhere after the
>> first couple seconds) of that mp3 and then seek back to a quiet section
>> (first couple seconds) in the beginning there seems to be some garbled
>> frames that get played. If you repeat the seek in the quiet area there is
>> no garbled noise. Is there some buffer that's not being flushed or is this
>> just a bad file?
>> - dale
> 
> I tried what you said and I get a mechanized sound when seeking to the quiet area after its been in a loud section.
> 
> When seeking to zero it doesn't happen.
> 
> Doesn't happen in the other players I tested it with.

I think this is a very long standing bug in the MP3 decoder, it probably does not reset some of the state in the flush function.
Nobody ever investigated it properly to my knowledge.