[MPlayer-cygwin] Problems while using "ao=dsound" and "ao=win32"

[Sascha Sommer]

Hi,

On Wednesday 13 September 2006 22:59, Victor Farias wrote:
> Just a little update about the "ao=win32" problem with 5.1 audio.
>
> It seems MPlayer was never working correctly using this output and the
> "channels=6" command (I tried testing old win32 releases and none of them
> worked).
>

Yes there seem to be some problems.

> However, there is a problem when playing 5.1 Vorbis files, because MPlayer
> will try to use the six channels output even if I did not use the
> "channels=6" command. Something like:
>
> mplayer -ao win32 -channels 6 <5.1 vorbis file> -> Slow playback as
> reported previously.
>
> mplayer -ao win32 <5.1 vorbis file> -> Slow playback as reported
> previously.
>
> When playing another 5.1 audio format (for example AC3 or AAC) the behavior
> is different. Something like:
>
> mplayer -ao win32 -channels 6 <5.1 ac3/aac file> -> Slow playback as
> reported previously.
>
> mplayer -ao win32 <5.1 ac3/aac file> -> Correct playback.
>
> Then I tried "MPlayer-mingw32-1.0pre7" to try to reproduce the "5.1 Vorbis
> files" problem. There was no problem, and everything worked correctly.
> Something like:
>
> mplayer -ao win32 -channels 6 <5.1 vorbis file> -> Slow playback as
> reported previously.
>
> mplayer -ao win32 <5.1 vorbis file> -> Correct playback.
>
> ... After an "insane" search, I was able to find the commit that changed
> the behavior after "MPlayer-mingw32-1.0pre7". It was SVN r15242.
>
> Link to SVN r15242:
>
> http://svn.mplayerhq.hu/mplayer/trunk/mplayer.c?r1=15162&r2=15242
>
> I reverted that commit and then I compiled MPlayer (latest SVN) and MPlayer
> was working just like "MPlayer-mingw32-1.0pre7".
>
> I do not know what is different between 5.1 Vorbis audio and 5.1 AC3/AAC
> audio that triggers this behavior, but it seems MPlayer will force
> "channels=6" when playing 5.1 Vorbis (even when I use "channels=2" or I do
> not use the "channels" command at all).
>

Can you please try the attached patch?
It will disable multichannel mode.


> Byes :)
>
> * Sorry for my poor english.
>
>

Your english is fine.

Regards

Sascha
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