$ ffmpeg -i connor.swf connor.avi
ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers
built on Sep 29 2012 11:22:50 with gcc 4.7.1 (GCC) 20120721 (prerelease)
configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis --enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-libgsm --enable-libspeex --enable-postproc --enable-shared --enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libschroedinger --enable-libopenjpeg --enable-librtmp --enable-libpulse --enable-libv4l2 --enable-gpl --enable-version3 --enable-runtime-cpudetect --disable-debug --disable-static
libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
[swf @ 0x1add240] SWF compressed file detected
[swf @ 0x1add240] max_analyze_duration 5000000 reached at 5000000
[swf @ 0x1add240] Could not find codec parameters for stream 0 (Audio: pcm_s16le, 5512 Hz, 1 channels, 88 kb/s): unspecified sample format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[swf @ 0x1add240] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, swf, from 'connor.swf':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Audio: pcm_s16le, 5512 Hz, mono, 88 kb/s
Stream #0:1: Video: vp6f, yuv420p, 320x240, 30 fps, 30 tbr, 30 tbn
[graph 1 input from stream 0:0 @ 0x1ae5240] Invalid sample format '(null)'
Error opening filters!
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