samples/V-codecs/ATI-VCR12/ATI/VCR2test.avi
Software decoding was broken since r8865, when two new context variables
were added, but not initialized in vcr2_init_sequence().
Another such context variable was added in r18381.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@21438 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b