[libav-bugs] [Bug 870] New: AVDISCARD_NONKEY does not work correctly for H264 decoder

bugzilla at libav.org bugzilla at libav.org
Sun Jun 28 15:37:32 CEST 2015


            Bug ID: 870
           Summary: AVDISCARD_NONKEY does not work correctly for H264
           Product: Libav
           Version: 11
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: ---
         Component: libavcodec
          Assignee: bugzilla at libav.org
          Reporter: t.i.m at zen.co.uk

Key-frame only playback does not seem to work properly with the H264 decoder. I
did not test other decoders, so I don't know if it's decoder-specific or a
general problem.

Symptom with GStreamer git master using libav 11.4: when AVDISCARD_NONKEY is
specified, keyframes are decoded properly, and for all non-keyframes a gray
frame is returned. I would expect no frame to be returned in that case.

This might be the same issue as https://trac.ffmpeg.org/ticket/3475

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