[phonon-mplayer] mplayer hang will also hang VideoPlayer

[Tanguy Krotoff]

Hi

Could you provide MPlayer log, it might help to see what is going on.
About MPlayer locking the drawing window of your application, this can
be verified by changing method MPlayerProcess::start() and disable the
following lines:
args << "-wid";
args << QString::number((qint64) _mediaData.videoWidgetId);
inside file http://gitorious.org/phonon/phonon-mplayer/blobs/master/mplayer/libmplayer/MPlayerProcess.cpp

Parameter -wid gives the window ID where MPlayer should paint the
video. No -wid parameter no MPlayer painting :) (the video still will
be played it just disable the video output)

Keep in mind MPlayer runs inside an independant QProcess (see
MyProcess.cpp and MPlayerProcess.cpp)


On Sun, Aug 15, 2010 at 6:11 AM, Ben Lau <xbenlau at gmail.com> wrote:
> Hi,
>
>  I have a video player that use phonon-mplayer on windows. When I
> play a video file with partly recognized audio codec , mplayer will
> not work correctly and finally hang. It is normal , however, if
> mplayer hang , it will also hang my video player... The video player
> will become "Not responded" application.  The same configuration is
> fine in Linux , the mplayer also hang , but it won't hang the video
> player. It may kill mplayer and let's the application to restart
> mplayer
>
>  I am not familiar with windows programming , I guess the mplayer has
> locked the drawing window for video(Hold the event loop?) And
> Phonon::VideoPlayer is also locked on the window (acquire an event?) .
> Is there any way to ask Phonon::VideoPlayer to provide a window for
> mplayer that will not acquire lock or don't read any event ?
>
> Thanks for any advise.

-- 
Tanguy Krotoff <tkrotoff at gmail.com>
+33 6 68 42 70 24