dirac: hang with -vcodec dirac (or libschroedinger)

[ami_stuff]

​http://ffmpeg.org/trac/ffmpeg/attachment/ticket/1059/599.png

it happens with any file as an input

C:\>ffmpeg -vcodec dirac -i 599.png
ffmpeg version N-39367-g99bb88c Copyright (c) 2000-2012 the FFmpeg developers
  built on Mar 29 2012 02:20:20 with gcc 4.5.0 20100414 (Fedora MinGW 4.5.0-1.fc
14)
  configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build --arch=
x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686-pc-min
gw32-gcc' --enable-w32threads --enable-memalign-hack --enable-runtime-cpudetect
--enable-cross-compile --enable-static --disable-shared --extra-libs='-lws2_32 -
lwinmm' --extra-cflags='--static -I/var/www/users/research/ffmpeg/snapshots/buil
d/include' --extra-ldflags='-static -L/var/www/users/research/ffmpeg/snapshots/b
uild/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-version3 --enable-n
onfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-libvorbis
--enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable-libopencor
e-amrwb --enable-libmp3lame --enable-libvpx --disable-decoder=libvpx
  libavutil      51. 44.100 / 51. 44.100
  libavcodec     54. 12.100 / 54. 12.100
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 66.101 /  2. 66.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 10.100 /  0. 10.100
  libpostproc    52.  0.100 / 52.  0.100

[Carl Eugen Hoyos]

(gdb) r -vcodec dirac -i tests/lena.pnm
Starting program: ffmpeg_g -vcodec dirac -i tests/lena.pnm
[Thread debugging using libthread_db enabled]
ffmpeg version N-39459-g7a3df01 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr  1 2012 13:11:38 with gcc 4.5.3
  configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc
  libavutil      51. 44.100 / 51. 44.100
  libavcodec     54. 12.100 / 54. 12.100
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 66.101 /  2. 66.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 10.100 /  0. 10.100

Program received signal SIGINT, Interrupt.
dirac_decode_frame (avctx=0x1418be0, data=0x7fffffffd230, data_size=0x7fffffffd47c, pkt=<value optimized out>) at libavcodec/diracdec.c:1845
1845            for (; buf_idx + DATA_UNIT_HEADER_SIZE < buf_size; buf_idx++) {
(gdb) bt
#0  dirac_decode_frame (avctx=0x1418be0, data=0x7fffffffd230, data_size=0x7fffffffd47c, pkt=<value optimized out>) at libavcodec/diracdec.c:1845
#1  0x000000000088a746 in avcodec_decode_video2 (avctx=0x1418be0, picture=0x7fffffffd230, got_picture_ptr=0x7fffffffd47c, avpkt=0x7fffffffd410) at libavcodec/utils.c:1424
#2  0x00000000004e420f in try_decode_frame (st=0x1412ec0, avpkt=<value optimized out>, options=<value optimized out>) at libavformat/utils.c:2266
#3  0x00000000004e95db in avformat_find_stream_info (ic=0x1412420, options=0x1419200) at libavformat/utils.c:2571
#4  0x00000000004109bb in opt_input_file (o=<value optimized out>, opt=<value optimized out>, filename=0x7fffffffe26e "tests/lena.pnm") at ffmpeg.c:3778
#5  0x0000000000414ac2 in parse_option (optctx=0x7fffffffda00, opt=0x7fffffffe26c "i", arg=0x7fffffffe26e "tests/lena.pnm", options=<value optimized out>) at cmdutils.c:300
#6  0x0000000000414d3b in parse_options (optctx=0x7fffffffda00, argc=5, argv=0x7fffffffddd8, options=0xa8cae0, parse_arg_function=0x411ec0 <opt_output_file>) at cmdutils.c:333
#7  0x0000000000413679 in main (argc=5, argv=0x7fffffffddd8) at ffmpeg.c:5219

[Michael Niedermayer]

fixed locally, wil be in my next git push