[libav-bugs] [Bug 439] New: H.264 decoding segfault after 47318953

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Wed Jan 30 01:54:43 CET 2013


http://bugzilla.libav.org/show_bug.cgi?id=439

           Summary: H.264 decoding segfault after 47318953
           Product: Libav
           Version: git HEAD
          Platform: X86
        OS/Version: Mac OS
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: libavcodec
        AssignedTo: bugzilla at libav.org
        ReportedBy: tdskywalker at gmail.com


47318953ddfe8aa7dd00ad90bd21ea3a995e35d0 is the first bad commit
commit 47318953ddfe8aa7dd00ad90bd21ea3a995e35d0
Author: Anton Khirnov <anton at khirnov.net>
Date:   Sun Jan 13 17:54:50 2013 +0100

    mpegvideo: remove some unused variables from Picture.
---------------------------------------------------------------------------------------
-    uint8_t *interpolated[3];

…seems to be the culprit.
---------------------------------------------------------------------------------------
avplay -i SpeakerID-TrueHD-Mono.264 
avplay version v9-354-g7194330, Copyright (c) 2003-2013 the Libav developers
  built on Jan 29 2013 23:03:10 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
[h264 @ 0x7fb06e013000] Estimating duration from bitrate, this may be
inaccurate
Input #0, h264, from SpeakerID-TrueHD-Mono.264':
  Duration: N/A, bitrate: N/A
    Stream #0.0: Video: h264 (High), yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 25
fps, 25 tbr, 25 tbn, 48 tbc
[h264 @ 0x7fb06f00de00] Ignoring NAL unit 9 during extradata parsing
Segmentation fault: 11
---------------------------------------------------------------------------------------
avconv -i SpeakerID-TrueHD-Mono.264 -c prores SpeakerID-TrueHD-Mono.mkv
avconv version v9-354-g7194330, Copyright (c) 2000-2013 the Libav developers
  built on Jan 29 2013 23:03:10 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
[h264 @ 0x7fd529006600] Estimating duration from bitrate, this may be
inaccurate
Input #0, h264, from 'SpeakerID-TrueHD-Mono.264':
  Duration: N/A, bitrate: N/A
    Stream #0.0: Video: h264 (High), yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 25
fps, 25 tbr, 25 tbn, 48 tbc
[h264 @ 0x7fd52a023c00] Ignoring NAL unit 9 during extradata parsing
Output #0, matroska, to 'SpeakerID-TrueHD-Mono.mkv':
  Metadata:
    encoder         : Lavf54.21.2
    Stream #0.0: Video: prores, yuv422p10le, 1280x720 [PAR 1:1 DAR 16:9],
q=2-31, 200 kb/s, 1k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> prores)
Press ctrl-c to stop encoding
Segmentation fault: 11

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