[libav-bugs] [Bug 737] New: get_format not called on resize

bugzilla at libav.org bugzilla at libav.org
Wed Sep 10 21:42:20 CEST 2014


http://bugzilla.libav.org/show_bug.cgi?id=737

           Summary: get_format not called on resize
           Product: Libav
           Version: git HEAD
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: libavcodec
        AssignedTo: bugzilla at libav.org
        ReportedBy: remi at remlab.net


>From a quick look (I don't have samples), MPEG-4 and VC-1 fail to reinvoke the
get_format() callback when the coded width and/or height changes mid-stream.

This can break hardware acceleration if the new dimension go above hardware
limits, or the profile changes.

MPEG-2 and H.264 do not seem to suffer from this problem.

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