Bug#525385: ffmpeg segfault png to ogg conversion

[Frans Pop]

found 525385 4:0.5+svn20090420-2
thanks

And also on unstable. I get:

$ ffmpeg -f image2 -r 24 -i ./frames/DebianInstaller-%05d.png -sameq d-i.ogg -pass 2
FFmpeg version SVN-r18630-4:0.5+svn20090420-2, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  
configuration: --disable-encoder=h263 --disable-encoder=h263p --disable-encoder=mpeg2video --disable-encoder=mpeg4 --disable-encoder=msmpeg4v1 --disable-encoder=msmpeg4v2 --disable-encoder=msmpeg4v3 --extra-version=4:0.5+svn20090420-2 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdc1394 --enable-shared --disable-static
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 0 / 52.20. 0
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on May  8 2009 06:31:25, gcc: 4.3.3
Input #0, image2, from './frames/DebianInstaller-%05d.png':
  Duration: 00:04:33.75, start: 0.000000, bitrate: N/A
    Stream #0.0: Video: png, rgb24, 800x600, 24 tbr, 24 tbn, 24 tbc
Output #0, ogg, to 'd-i.ogg':
    Stream #0.0: Video: libtheora, yuv420p, 800x600, q=2-31, 200 kb/s, 90k tbn, 24 tbc
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
frame= 6570 fps= 15 q=0.0 Lsize=   20168kB time=273.75 bitrate= 603.5kbits/s

[... 6570 is the last frame ...]

video:19910kB audio:0kB global headers:3kB muxing overhead 1.278542%
*** glibc detected *** ffmpeg: double free or corruption (out): 0x0000000000e00fa0 ***
======= Backtrace: =========
/lib/libc.so.6[0x7f2aed3d3118]
/lib/libc.so.6(cfree+0x76)[0x7f2aed3d4c56]
/usr/lib/libtheora.so.0[0x7f2aebba4e95]
/usr/lib/libtheora.so.0[0x7f2aebb99e76]
/usr/lib/libtheora.so.0(theora_clear+0x22)[0x7f2aebb7c592]
/usr/lib/libavcodec.so.52[0x7f2aee093f48]
/usr/lib/libavcodec.so.52(avcodec_close+0x42)[0x7f2aedded262]
ffmpeg[0x40af87]
ffmpeg[0x40b2e4]
/lib/libc.so.6(__libc_start_main+0xe6)[0x7f2aed37f5a6]
ffmpeg[0x404169]
======= Memory map: ========
00400000-00414000 r-xp 00000000 fe:08 229605                             /usr/bin/ffmpeg
00613000-00615000 rw-p 00013000 fe:08 229605                             /usr/bin/ffmpeg
00615000-0061a000 rw-p 00000000 00:00 0
00ca1000-01d6d000 rw-p 00000000 00:00 0                                  [heap]
7f2ae4000000-7f2ae4021000 rw-p 00000000 00:00 0
7f2ae4021000-7f2ae8000000 ---p 00000000 00:00 0
7f2ae9539000-7f2ae9553000 r-xp 00000000 fe:08 180248                     /lib/libgcc_s.so.1
7f2ae9553000-7f2ae9753000 ---p 0001a000 fe:08 180248                     /lib/libgcc_s.so.1
7f2ae9753000-7f2ae9754000 rw-p 0001a000 fe:08 180248                     /lib/libgcc_s.so.1
7f2ae9754000-7f2aea296000 rw-p 00000000 00:00 0
7f2aea296000-7f2aea29b000 r-xp 00000000 fe:08 189642                     /usr/lib/libXdmcp.so.6.0.0
7f2aea29b000-7f2aea49a000 ---p 00005000 fe:08 189642                     /usr/lib/libXdmcp.so.6.0.0
7f2aea49a000-7f2aea49b000 rw-p 00004000 fe:08 189642                     /usr/lib/libXdmcp.so.6.0.0
7f2aea49b000-7f2aea4a0000 r-xp 00000000 fe:08 190363                     /usr/lib/libogg.so.0.5.3
7f2aea4a0000-7f2aea69f000 ---p 00005000 fe:08 190363                     /usr/lib/libogg.so.0.5.3
7f2aea69f000-7f2aea6a0000 rw-p 00004000 fe:08 190363                     /usr/lib/libogg.so.0.5.3
7f2aea6a0000-7f2aea713000 r-xp 00000000 fe:08 190177                     /usr/lib/liboil-0.3.so.0.3.0
7f2aea713000-7f2aea912000 ---p 00073000 fe:08 190177                     /usr/lib/liboil-0.3.so.0.3.0
7f2aea912000-7f2aea92e000 rw-p 00072000 fe:08 190177                     /usr/lib/liboil-0.3.so.0.3.0
7f2aea92e000-7f2aea930000 rw-p 00000000 00:00 0
7f2aea930000-7f2aea932000 r-xp 00000000 fe:08 189639                     /usr/lib/libXau.so.6.0.0
7f2aea932000-7f2aeab31000 ---p 00002000 fe:08 189639                     /usr/lib/libXau.so.6.0.0
7f2aeab31000-7f2aeab32000 rw-p 00001000 fe:08 189639                     /usr/lib/libXau.so.6.0.0
7f2aeab32000-7f2aeab4d000 r-xp 00000000 fe:08 189649                     /usr/lib/libxcb.so.1.1.0
7f2aeab4d000-7f2aead4d000 ---p 0001b000 fe:08 189649                     /usr/lib/libxcb.so.1.1.0
7f2aead4d000-7f2aead4e000 rw-p 0001b000 fe:08 189649                     /usr/lib/libxcb.so.1.1.0
7f2aead4e000-7f2aead50000 r-xp 00000000 fe:08 180421                     /lib/libdl-2.9.so
7f2aead50000-7f2aeaf50000 ---p 00002000 fe:08 180421                     /lib/libdl-2.9.so
7f2aeaf50000-7f2aeaf51000 r--p 00002000 fe:08 180421                     /lib/libdl-2.9.so
7f2aeaf51000-7f2aeaf52000 rw-p 00003000 fe:08 180421                     /lib/libdl-2.9.so
7f2aeaf52000-7f2aeaf59000 r-xp 00000000 fe:08 180386                     /lib/librt-2.9.so
7f2aeaf59000-7f2aeb158000 ---p 00007000 fe:08 180386                     /lib/librt-2.9.so
7f2aeb158000-7f2aeb159000 r--p 00006000 fe:08 180386                     /lib/librt-2.9.so
7f2aeb159000-7f2aeb15a000 rw-p 00007000 fe:08 180386                     /lib/librt-2.9.so
7f2aeb15a000-7f2aeb166000 r-xp 00000000 fe:08 180244                     /lib/libusb-1.0.so.0.0.0
7f2aeb166000-7f2aeb365000 ---p 0000c000 fe:08 180244                     /lib/libusb-1.0.so.0.0.0
7f2aeb365000-7f2aeb366000 rw-p 0000b000 fe:08 180244                     /lib/libusb-1.0.so.0.0.0
7f2aeb366000-7f2aeb373000 r-xp 00000000 fe:08 190875                     /usr/lib/libraw1394.so.11.0.1
7f2aeb373000-7f2aeb572000 ---p 0000d000 fe:08 190875                     /usr/lib/libraw1394.so.11.0.1
7f2aeb572000-7f2aeb573000 rw-p 0000c000 fe:08 190875                     /usr/lib/libraw1394.so.11.0.1
7Aborted