[MPlayer-users] Jerky sound with bluetooth headsets

[Leszek Koltunski]

On Tue, 8 Jan 2008, RC wrote:

> On Tue, 8 Jan 2008 23:06:31 +0800
> Leszek Koltunski <leszek at 3miasto.net.pl> wrote:
>
>> 4) mplayer -ao alsa:device=headset file.avi ( i.e. playing video and
>> audio ) results in a terribly choppy sound.
>
> MPlayer video playback does depend on audio timing information.  Have
> you tried with different values for -mc (0/10) and -autosync (1/30)?

I've tried. -autosync >=1 makes it a bit better, but it's still totally 
unacceptable.

>
> You also haven't said what version of MPlayer you are using.  If it's
> older, you should try with a recent SVN snapshot.

I am using 1.0.rc2svn20071207-0.2 from www.debian-multimedia.org. Will try 
recent SVN.

>
>> At least one more person has the same problem, see one bugreport from
>> the bluez-utils mailinglist:
>
> There's a very interesting response from Brad Midgley.
>
> MPlayer is indeed single threaded...  What's so screwed up about the
> design of "bluez" to cause a problem with that?

I failed to mention that it's not only choppy sound, but video playback 
gets slowed down, too.