[Bug 776795] New: [Gstreamer] Rendering corruption when decoding with avdec_vp9

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=776795

            Bug ID: 776795
           Summary: [Gstreamer] Rendering corruption when decoding with
                    avdec_vp9
    Classification: Platform
           Product: GStreamer
           Version: 1.7.2
                OS: other
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-libav
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: yin.kii.yu at intel.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Hi,

Software decode for VP9 (libav – using avdec_vp9 pipeline) will cause
corruption when rendering. However this does not occur when using vaapidecode
(hardware decode) and vp9dec (on2 decode).

This was run on Yocto OS (reproducible on both Weston and X).

Command Used:

-Hardware Decode (Works fine)
gst-launch-1.0 filesrc location=/<File>.webm ! matroskademux ! vaapidecode !
vaapisink

-On2 Software Decode (Works fine)
gst-launch-1.0 filesrc location=/<File>.webm ! matroskademux ! vp9dec  !
vaapisink

-libav Software Decode (Corruption when rendering)
gst-launch-1.0 filesrc location=/<File>.webm  ! matroskademux ! avdec_vp9 !
vaapisink

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