[FFmpeg-trac] #3002(undetermined:new): wmalossless: crash with forced codec

[FFmpeg]

#3002: wmalossless: crash with forced codec
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://samples.mplayerhq.hu/flac/24-bit_192kHz.flac

 I wanted to check with random files if deadlock is really fixed and found
 this:

 {{{
 (gdb) r -acodec wmalossless -i 24-bit_192kHz.flac -vn -f null - -loglevel
 0
 Starting program: D:\MinGW\msys\1.0\ffmpeg-HEAD-a67dcd7\ffmpeg_g.exe
 -acodec wma
 lossless -i 24-bit_192kHz.flac -vn -f null - -loglevel 0
 [New Thread 2652.0x4d8]
 [New Thread 2652.0xf64]
 [New Thread 2652.0xfd4]
 [New Thread 2652.0xfb8]
 [New Thread 2652.0x6b4]
 [New Thread 2652.0x294]
 [New Thread 2652.0x7b4]
 [New Thread 2652.0x5d4]
 [New Thread 2652.0xa80]
 [New Thread 2652.0xa6c]

 Program received signal SIGSEGV, Segmentation fault.
 0x008369c4 in init_get_bits (bit_size=0, buffer=0x0, s=0x4ee808c)
     at libavcodec/get_bits.h:424
 424         s->index              = 0;
 (gdb) bt
 #0  0x008369c4 in init_get_bits (bit_size=0, buffer=0x0, s=0x4ee808c)
     at libavcodec/get_bits.h:424
 #1  decode_packet (avctx=0x4df6e60, data=0x4df7ec0,
 got_frame_ptr=0x22fa9c,
     avpkt=0x22f768) at libavcodec/wmalosslessdec.c:1189
 #2  0x0059ffdd in avcodec_decode_audio4 (avctx=0x4df6e60, frame=0x4df7ec0,
     got_frame_ptr=0x22fa9c, avpkt=0x22f898) at libavcodec/utils.c:2124
 #3  0x004141ea in decode_audio (got_output=<optimized out>,
     pkt=<optimized out>, ist=<optimized out>) at ffmpeg.c:1526
 #4  output_packet (ist=0x55e3c60, pkt=0x0) at ffmpeg.c:1863
 #5  0x004164bf in process_input (file_index=0) at ffmpeg.c:2928
 #6  0x00b0b3f8 in transcode_step () at ffmpeg.c:3181
 #7  transcode () at ffmpeg.c:3233
 #8  main (argc=11, argv=<optimized out>) at ffmpeg.c:3411
 (gdb)
 }}}


 also crashes with (autobuild)
 {{{
 ffmpeg version N-56663-g851a6e2 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Sep 26 2013 02:40:41 with gcc 4.5.0 (GCC) 20100414 (Fedora
 MinGW 4.5.
 0-1.fc14)
   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-pthreads --enable-memalign-hack --enable-runtime-
 cpudetect --
 enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -lw
 inmm -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snapsh
 ots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/sna
 pshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3 --
 enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-li
 bvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-li
 bopencore-amrwb --enable-libmp3lame --enable-libfreetype --enable-libvpx
 --disab
 le-decoder=libvpx
   libavutil      52. 46.100 / 52. 46.100
   libavcodec     55. 33.100 / 55. 33.100
   libavformat    55. 18.102 / 55. 18.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 87.100 /  3. 87.100
   libswscale      2.  5.100 /  2.  5.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3002>
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