[gstreamer-bugs] [Bug 503743] New: the dfbvideosink does not handle external surface correctly

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-bad | Ver: 0.10.4
           Summary: the dfbvideosink does not handle external surface
                    correctly
           Product: GStreamer
           Version: 0.10.4
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: joyious at 163.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Hi,

I'm using gstreamer and DirectFB to create a media player on a ARM11 board.

now I found if i create a surface in my application and pass this surface to
dfbvideosink, it's very slow on my board.and if i let dfbvideosink to create
the surface itself, it's faster.

then i checked the source code in dfbvideosink.c, and found those: 
1. in  gst_dfbvideosink_setup()  it will not  get  dirctFB initialized  if it's
a external surface. just copy some configuation from the ext surface,
2, in  gst_dfbvideosink_surface_create()  , it will not create any surface is
DirectFB is not initialized,
3, in gst_dfbvideosink_show_frame(), it will check the buffer has surface or
not to decide use Blit or mem_cpy. since using the external surface do not
cause a directfb initialized and then no surface created in buffer. mem_cpy is
chosen. this cause the video playback slower.

I think dfbvideosink should check the external surface support blit or not, if
yes,it should use blit to accelarate.

could you check and fix this?

Best Regards
Joyious


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