[FFmpeg-trac] #382(undetermined:new): ffplay segmentation fault on oldabi branch when using --enable-small

[FFmpeg]

#382: ffplay segmentation fault on oldabi branch when using --enable-small
--------------------------+-------------------------
 Reporter:  exobuzz       |        Type:  defect
   Status:  new           |    Priority:  important
Component:  undetermined  |     Version:  git-oldabi
 Keywords:                |  Blocked By:
 Blocking:                |  Reproduced:  0
 Analyzed:  0             |
--------------------------+-------------------------
 Compiling oldabi branch HEAD as of 05/08/2011 (last commit
 25c2f13d00fcfdb81c33a459795c33d29f8690e8) with --enable-small crashes when
 playing a video.

 running gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4) on 64 bit,.

 building with "./configure --enable-small"

 I git bisected it to this commit:
 {{{
 44f669e7bc4f7f064e3f81d3596637a0e043b501 is the first bad commit
 commit 44f669e7bc4f7f064e3f81d3596637a0e043b501
 Author: Stefano Sabatini <stefano.sabatini-lala at poste.it>
 Date:   Sat Jun 11 18:43:11 2011 +0200

     lavfi: add vsink_buffer, and use it in ff* tools

     Also add the public interface libavfilter/vsink_buffer.h.

 :100644 100644 7745fa0938958ba7a2334be1a2ef9c33dc224d8c
 80ed401ab9e99210665c40710d340ef4ca880c02 M      Changelog
 :100644 100644 3b9cfaa3d97318d9bd34a8956f0c09998aca41a6
 c3c5c0efa9e30452ae96dde9742da54809394171 M      cmdutils.c
 :100644 100644 c0c3ce07d95ebf7310ff726a9d56fb11ab165248
 e001ab9201487f90281655dc273e49b22e4bde66 M      cmdutils.h
 :040000 040000 131e7beeba6126fbbf469ed87486ec0ca38efb61
 5bcd802168bf5ed0adb736ba8d944234dcdd4473 M      doc
 :100644 100644 2921a06ddfa5333ee08ae523e5f8cc697c932c90
 0b1b1bee8db5246525ca629873cc14c88886f110 M      ffmpeg.c
 :100644 100644 31a683216fc416455090f8472a52a7a113d122dd
 548fda627a08c6260a3d5d691ab89072a84b9a31 M      ffplay.c
 :040000 040000 4cedfd0c9064e7e6bb84c9917af1a7af6dd88b2b
 2b1aa7a2d415b5109fd36012bf714768ccd17f19 M      libavfilter
 }}}

 backtrace didn't seem useful (Please feel free to give me some guidance if
 you can't reproduce).

 {{{
 (gdb) run
 Starting program: /home/jools/Repos/Public/ffmpeg/ffplay afilm.mkv
 [Thread debugging using libthread_db enabled]
 ffplay version N-30958-g25c2f13, Copyright (c) 2003-2011 the FFmpeg
 developers
   built on Aug  5 2011 01:21:15 with gcc 4.5.2
   configuration: --enable-small
   libavutil    50. 43. 0 / 50. 43. 0
   libavcodec   52.122. 0 / 52.122. 0
   libavformat  52.110. 0 / 52.110. 0
   libavdevice  52.  5. 0 / 52.  5. 0
   libavfilter   1. 80. 0 /  1. 80. 0
   libswscale    0. 14. 1 /  0. 14. 1
 [New Thread 0x7ffff26cc700 (LWP 16816)]
 [New Thread 0x7fffedeca700 (LWP 16817)]
 [Thread 0x7fffedeca700 (LWP 16817) exited]
 [New Thread 0x7fffedeca700 (LWP 16818)]
 [matroska,webm @ 0x1039740] max_analyze_duration 5000000 reached at
 5002000
 [matroska,webm @ 0x1039740] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, matroska,webm, from 'afilm.mkv':
   Metadata:
     title           : Dune (1984)
   Duration: 02:16:18.02, start: 0.000000, bitrate: 1536 kb/s
     Stream #0.0(eng): Video: h264, yuv420p, 1280x544, PAR 1:1 DAR 40:17,
 24 fps, 24 tbr, 1k tbn, 48 tbc (default)
     Stream #0.1(eng): Audio: dca, 48000 Hz, 5.1, s16, 1536 kb/s (default)
     Stream #0.2(eng): Subtitle: ass (default)
     Stream #0.3(cze): Subtitle: ass
     Stream #0.4(fre): Subtitle: ass
     Stream #0.5(ger): Subtitle: ass
     Stream #0.6(hun): Subtitle: ass
     Stream #0.7(spa): Subtitle: ass
     Stream #0.8: Attachment: [0][0][0][0] / 0x0000
     Metadata:
       filename        : CronosPro-Bold.ttf
     Stream #0.9: Attachment: [0][0][0][0] / 0x0000
     Metadata:
       filename        : CronosPro-Semibold.ttf
     Stream #0.10: Attachment: [0][0][0][0] / 0x0000
     Metadata:
       filename        : CronosPro-SemiboldIt.ttf
 [New Thread 0x7ffff1dfd700 (LWP 16819)]
 [New Thread 0x7ffff15fc700 (LWP 16820)]
 [New Thread 0x7ffff0dfb700 (LWP 16821)]

 Program received signal SIGSEGV, Segmentation fault.
 [Switching to Thread 0x7ffff15fc700 (LWP 16820)]
 0x00007ffff6af72a4 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
 (gdb) bt
 #0  0x00007ffff6af72a4 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
 #1  0x000000000043965d in ?? ()
 #2  0x0000000000431c7a in ?? ()
 #3  0x00007ffff7640875 in ?? () from /usr/lib/libSDL-1.2.so.0
 #4  0x00007ffff7683049 in ?? () from /usr/lib/libSDL-1.2.so.0
 #5  0x00007ffff6d6cd8c in start_thread () from /lib/x86_64-linux-
 gnu/libpthread.so.0
 #6  0x00007ffff6ab804d in clone () from /lib/x86_64-linux-gnu/libc.so.6
 #7  0x0000000000000000 in ?? ()
 }}}

-- 
Ticket URL: <http://www.ffmpeg.org/trac/ffmpeg/ticket/382>
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