TechSmith Camtasia Screen Codec 2 artefacts

[cehoyos]

I will attach a tsc2 sample that shows severe artefacts with FFmpeg.

$ ffmpeg -i tsc2_lowq.avi
ffmpeg version N-42451-ga568a84 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jul 12 2012 14:11:52 with gcc 4.3.2
  configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable-libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame --enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs --enable-x11grab
  libavutil      51. 64.100 / 51. 64.100
  libavcodec     54. 34.100 / 54. 34.100
  libavformat    54. 16.104 / 54. 16.104
  libavdevice    54.  1.100 / 54.  1.100
  libavfilter     3.  2.100 /  3.  2.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, avi, from 'tsc2_lowq.avi':
  Duration: 00:00:12.62, start: 0.000000, bitrate: 1079 kb/s
    Stream #0:0: Video: tscc2 (tsc2 / 0x32637374), yuv444p, 320x240, 24 tbr, 24 tbn, 24 tbc
At least one output file must be specified

[cehoyos]

Fixed by Kostya, and additional fix will be merged tonight.