[Bug 239905] multimedia/mplayer: mkv seeking above 2GB broken with ffmpeg 4.2

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[Bug 239905] multimedia/mplayer: mkv seeking above 2GB broken with ffmpeg 4.2

bugzilla-noreply
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239905

            Bug ID: 239905
           Summary: multimedia/mplayer: mkv seeking above 2GB broken with
                    ffmpeg 4.2
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: [hidden email]
          Reporter: [hidden email]
             Flags: maintainer-feedback?([hidden email])
          Assignee: [hidden email]

The update to FFmpeg 4.2 has introduced a regression in MPlayer. For (at least)
the ubiquitous H.264 videos in MKV containers, seeking in MPlayer is broken,
e.g. when jumping back and forth with the arrow keys. Effects are
desynchronized faulty video and failure to seek. This appears to affect the
parts of the video file beyond 2GB, seeking below is fine. MPlayer prints
warnings like
[matroska,webm @ 0x801b86f40]Element at 0x81e78160 ending at 0x81ff3e32 exceeds
containing master element ending at 0x7e2ea500

multimedia/mpv is not affected, so this appears to be a specific problem in
MPlayer.

FreeBSD 12.0-STABLE r350672 GENERIC amd64
mplayer-1.4.0.20190706_2
ffmpeg-4.2_1,1
Compiled from ports with the default options.

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