[Intel-gfx] Crash in Gstreamer Vaapi Application for playing multiple videos

[Xiang, Haihao]

Hi, 

  I tried to reproduce the issue with your sample code but failed. 
No window is created even with single video file. With gdb's help, I
found the sample doesn't receive 'prepare-xwindow-id' message. 

After building the sample code ( I modified the variable 'Filename'), I
directly run MultiVideo
$> ./MultiVideo

Did I miss something?

Thanks
Haihao




> Hi,
> 
> I am trying to play multiple videos simultaneously using 
> GStreamer(vaapidecode and vaapisink plugins) and libVA-1.0.7.
> In the sample application I am creating multiple windows using 
> "XCreateWindow" and passing the generated window ID to vaapisink.
> There are two problems I am facing:
> 
> 1. The first video is getting rendered but the other videos are not 
> getting rendered.
> 
> 2. The application crashes randomly.
> None of the gstreamer calls return a failure and the state is getting 
> changed to play successfully. Tried the application with different 
> container formats.
> Also from the command line using "gst-launch" I am able to playback 
> multiple videos simultaneously.
> 
> The backtrace of the gdb log is attached "CrashLog.txt". The log 
> suggests the crash is in "i965_PutSurface".
> 
> I am using the following packages as mentioned on Intel Linux graphics 
> site "http://intellinuxgraphics.org/2010Q4.html":
> 
> 2D driver: xf86-video-intel 2.14.0 release 
> <http://xorg.freedesktop.org/archive/individual/driver/xf86-video-intel-2.14.0.tar.bz2> 
> 
> 3D driver: mesa 7.10 <ftp://freedesktop.org/pub/mesa/7.10/>
> Libdrm: libdrm-2.4.23 release 
> <http://dri.freedesktop.org/libdrm/libdrm-2.4.23.tar.bz2>
> Kernel: 2.6.37 release 
> <http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.37.tar.bz2>
> Cairo: cairo-1.10.2 release <http://cairographics.org/news/cairo-1.10.2/>
> Libva: libva-1.0.7 release 
> <http://cgit.freedesktop.org/libva/snapshot/libva-1.0.7.tar.bz2>
> xserver: 1.9.3
> 
> Apart from this I have installed the following gstreamer packages:
> gstreamer-0.10.31
> gst-plugins-base-0.10.29
> gst-plugins-good-0.10.22
> gst-plugins-bad-0.10.19
> gst-plugins-ugly-0.10.15
> gst-ffmpeg-0.10.10.
> 
> For reference attaching the sample application "MultiVideo.c".
> 
> I am not sure if it is application problem or plugin or driver 
> limitation or X? As the same application runs with "ximagesink"and 
> decoder like ffmpeg.
> What could be the problem?
> 
> PS : OS : Fedora Core 13. Platform: Sandy Bridge.Kernel : 2.6.37.
> 
> Regards,
> Jyotsana.
>