Bug#863663: libgstreamer1.0-0: plays MJPEG AVI files (and possibly other formats) at degraded quality

Sebastian Dröge slomo at debian.org
Tue May 30 07:18:57 UTC 2017

On Mon, 2017-05-29 at 22:17 +0200, Francesco Poli (wintermute) wrote:
> Package: libgstreamer1.0-0
> Version: 1.10.4-1
> Severity: important
> Hello maintainers of GStreamer packages!
> First off, thanks for maintaining these packages in Debian.
> I am experiencing an issue with GStreamer: I noticed it inside
> pdf-presenter-console (which uses libgstreamer1.0-0 to play back
> movies in PDF documents). But I can reproduce the same exact issue
> outside pdf-presenter-console, with the following command:
>   $ gst-launch-1.0 filesrc location=movie.avi \! decodebin \!
> autovideosink
> where movie.avi is an MJPEG AVI file (created with paraview, by using
> the default Save Animation... menu entry and by choosing to save the
> animation as an AVI file).
> Well, the above quoted gst-launch-1.0 command displays the AVI file
> at degraded quality, while using mpv plays the same file without
> visible
> quality degradation:
>   $ mpv movie.avi

Can you provide a sample file and screenshots from both applications
for comparison? Thanks!
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