[MPlayer-dev-eng] [PATCH] Recognize audio format mp3 in wav files

Ingo Brückl ib at wupperonline.de
Thu Jul 26 09:11:35 CEST 2012

Reimar Döffinger wrote on Wed, 25 Jul 2012 21:33:27 +0200:

> On Wed, Jul 25, 2012 at 11:20:34AM +0200, Ingo Brückl wrote:
>> Reimar Döffinger wrote on Tue, 24 Jul 2012 21:58:51 +0200:
>> > On 24 Jul 2012, at 13:23, Ingo Brückl <ib at wupperonline.de> wrote:
>> >> Subject says it all.
>> >>
>> >> I happen to have a wav file that contains mp3 data. MPlayer's default
>> >> demuxer can't play it, while -demuxer lavf plays it just fine. The patch
>> >> makes MPlayer's default demuxer to play it as well.
>> >>
>> >> If there are no objections, I'd like to commit.
>> > It doesn't really seem right to me, looks like it forces the demuxer to
>> > misdetect it as raw MP3 file.
>> Yes, that's the basic idea.
>> > What exactly is the problem/why does it not work?
>> > Is it maybe just a matter of enabling parsing in that case?
>> It is a wav file with RIFF/WAVE/fmt header, but audio format 0x55 0x00 (mp3).
>> It currently will be detected as frmt == WAV and does not play.
>> I thought I've improved parsing, but if I didn't please advise.

> The problem is that is it _is_ a WAV file, and it needs the parsing
> steps related to WAV (like reading and respecting the data size).
> I couldn't fully test it (my audio output isn't working right
> currently), but I think this is the correct way to fix it:

Yep, that works. Please commit.


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