http://bugs.cinelerra.org/show_bug.cgi?id=449

           Summary: MJPEG files transition problem when using OpenGL
           Product: Cinelerra
           Version: 2.1
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: Medium
         Component: Video Display
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


I use MJPEG files as "proxy" for HDV editing (see in wiki).
I HAVE to use OpenGL due to hardware scaling ("proxy" scheme assumes 
always 1440x1080 project size, and scales "proxy" by e.g. 2.0).

Very annoying is that when using those files, video transitions, in particular
dissolve does not work properly. Compositor goes to black inside the
transition.  Video Format YUVA-8.  It works with XV display.

Some example files:
http://mk.phys.us.edu.pl/~marcin/movies/Zle_ladowisko_w_Piedrahicie_zoomout.avi
http://mk.phys.us.edu.pl/~marcin/movies/mjpeg_opengl_problem.xml





Reproducible: Always

Steps to Reproduce:
1.Open MJPEG file in a project
2.Do some dissolve transition between 2 edits
3.play with Video Output - OpenGL-XV to see the difference.


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