vf negate: crash

[ami_stuff]

​http://ffmpeg.org/trac/ffmpeg/raw-attachment/ticket/1116/1023.bmp

C:\>ffmpeg -i 1023.bmp -vf negate out.bmp
ffmpeg version N-39664-g6bfb304 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr 10 2012 02:37:16 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. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 67.101 /  2. 67.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 10.100 /  0. 10.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, image2, from '1023.bmp':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: bmp, pal8, 1023x767, 25 tbr, 25 tbn, 25 tbc
[buffer @ 0x1dc1ce0] w:1023 h:767 pixfmt:pal8 tb:1/1000000 sar:0/1 sws_param:fla
gs=2
[buffersink @ 0x1dc1120] auto-inserting filter 'auto-inserted scale 0' between t
he filter 'Parsed_negate_0' and the filter 'out'
[negate @ 0x1dc1480] auto-inserting filter 'auto-inserted scale 1' between the f
ilter 'src' and the filter 'Parsed_negate_0'
[scale @ 0x1dc23a0] w:1023 h:767 fmt:pal8 sar:0/1 -> w:1023 h:767 fmt:yuv420p sa
r:0/1 flags:0x4

C:\>

(gdb) r -i 1023.bmp -vf negate out.bmp
Starting program: d:\mingw\msys\1.0\ffmpeg\ffmpeg_g.exe -i 1023.bmp
 -vf negate out.bmp
[New Thread 3832.0xb54]

Program received signal SIGSEGV, Segmentation fault.
0x004256c1 in config_props (inlink=0x3802300) at libavfilter/vf_lut.c:279
279                 lut->lut[tcomp][val] = av_clip((int)res, min[comp], max[comp
]);
(gdb) bt
#0  0x004256c1 in config_props (inlink=0x3802300) at libavfilter/vf_lut.c:279
#1  0x004162ae in avfilter_config_links (filter=0x3801eb0)
    at libavfilter/avfilter.c:338
#2  0x00416276 in avfilter_config_links (filter=0x38014e0)
    at libavfilter/avfilter.c:284
#3  0x00416276 in avfilter_config_links (filter=0x3801d40)
    at libavfilter/avfilter.c:284
#4  0x004192d0 in ff_avfilter_graph_config_links (log_ctx=<optimized out>,
    graph=<optimized out>) at libavfilter/avfiltergraph.c:134
#5  avfilter_graph_config (graphctx=0x3801b30, log_ctx=0x0)
    at libavfilter/avfiltergraph.c:361
#6  0x0040a3f1 in configure_video_filters (ost=<optimized out>,
    ist=<optimized out>) at ffmpeg.c:674
#7  transcode_init (output_files=0x3801ae0, nb_output_files=1,
    input_files=0x3801600, nb_input_files=1) at ffmpeg.c:2601
#8  0x0040bab1 in transcode (output_files=0x3801ae0, nb_output_files=1,
    input_files=0x3801600, nb_input_files=1) at ffmpeg.c:2800
#9  0x0022ff48 in ?? ()
Backtrace stopped: Not enough registers or memory available to unwind further

[Michael Niedermayer]

Locally fixed