[Okular-devel] [okular] [Bug 342140] New: poster option for embedded mp4 file (made with beamer + multimedia) fails- no image

[lpearce at ucla.edu]

https://bugs.kde.org/show_bug.cgi?id=342140

            Bug ID: 342140
           Summary: poster option for embedded mp4 file (made with beamer
                    + multimedia) fails- no image
           Product: okular
           Version: 0.17.5
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: lpearce at ucla.edu

I'm seeing a problem very similar to Bug 301603, except that one is fixed
whereas mine is not.  I have an mp4 file I am embedding into a pdf presentation
made using Beamer (in LaTeX, compiled with pdflatex) with the multimedia
package.

I plan to attach a MWE of the LaTeX code, the resulting pdf, and the video, but
here's the situation:

When embedding a video using the multimedia package, there is an option called
"poster", in which case, the pdf viewer should display the first image of the
video when it is not playing.  However, in okular, I have no image (although
the box to click to play it is there, as if the poster option was not set).

Running okular from the command line gives these errors:

okular(19478)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
** (okular:19478): WARNING **: gstvideo: failed to get caps of pad
xvimagesink1:sink

and when I run the video, the following message is output on the command line:

** (okular:19478): WARNING **: gstvideo: failed to get caps of pad
xvimagesink0:sink

The mp4 file is one that I made myself, using avconv.  I have tried using
different codecs, including -c:v mpeg4, -c:v msmpeg4 (giving a .asf file), and
-c:v libx264.  I am happy to use different codecs, etc, provided that the final
result plays with okular.  Please let me know if you would like a different
version of the video, made with some specific codec.

The poster option for the multimedia package in beamer was supported as of
2012-08-19 (as per bug report 301603); I am running KDE 4.11.5 and Okular
0.17.5, which came out significantly after this.

Reproducible: Always

Steps to Reproduce:
1. Open pdf with okular
2. See that there's no image in the box to play video (you can find the box by
moving the cursor around and seeing where it changes)

Actual Results:  
No image

Expected Results:  
The first frame of the video should be displayed when the video is not playing

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