LinuxQuestions.org - [SOLVED] Mencoder segfaults when converting x264 MKVs

The version of mencoder I currently have installed segfaults (immediately) when you ask it to convert x264-encoded MKVs to another format. One sample command-line would be:

Code:

mencoder -nosound -ovc libdv Puella_Magi_Madoka_Magica_720p_GG_-_06.mkv -o a.avi

This produces the following output:

Code:

MEncoder 20110702-4.5.2 (C) 2000-2011 MPlayer Team

success: format: 0  data: 0x0 - 0x1c43987e

libavformat file format detected.

[matroska,webm @ 0x1609800] max_analyze_duration 5000000 reached at 5019000

[matroska,webm @ 0x1609800] Estimating duration from bitrate, this may be inaccurate

[lavf] stream 0: video (h264), -vid 0, SHAFTSHIT - 06

[lavf] stream 1: audio (aac), -aid 0, -alang jpn, AAC 2.0

[lavf] stream 2: subtitle (ass), -sid 0, -slang eng, ass

VIDEO:  [H264]  1280x720  0bpp  23.976 fps    0.0 kbps ( 0.0 kbyte/s)

[V] filefmt:44  fourcc:0x34363248  size:1280x720  fps:23.976  ftime:=0.0417

Segmentation fault

Extracting the video track with mkvextract and then mencoding that produces the same output.

I'm using a very recent MPlayer checkout (I used Pat's SlackBuild, set USE_PATENTS to YES, and set the VERSION to 20110702). The version of x264 that I have installed, and that I've built MPlayer against, is the one currently on SBO: 20101023.

Can anyone else confirm whether this happens to them, or is it just me?

Incidentally, I'm wondering if the version of FFMpeg that the MPlayer configure script downloads might be at fault. The slightly outdated FFMpeg I installed from SBo (6.1) does not crash when converting the same file.

And no, I can't use either Alien Bob's Mplayer build or the MPlayer binaries included with Slackware. Neither is built against either libdv or x264. I need libdv as an output codec.