[Mesa-dev] [Bug 92634] gallium's vl_mpeg12_decoder does not work with st/va

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Oct 23 03:36:06 PDT 2015


            Bug ID: 92634
           Summary: gallium's vl_mpeg12_decoder does not work with st/va
           Product: Mesa
           Version: git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: julien.isorce at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org

By curiosity I tried gallium vaapi with "ilo" aka i965 driver and it crashed.

Not sure if it is a regression or if the root problem is that vl_mpeg12_decoder
does not support chunk decoding (i.e. be able to call decode_bitstream many
times between begin_frame / end_frame) which is required for st/va to work.

Following patches fixes the crashes but then I can only see blocky green video

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