2-3% faster decode on x86-32 core2.


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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.


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because YV12 triggers an UV swap in rawdec.c, fixes issue 1687.


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Not benchmarked as i failed to find a sample that uses this one. But it should be faster.


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Any tips on how i can convince gcc that it doesnt need a
mov     %eax, %eax
in every get_bits() ?


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Helps gcc not to add seperate -1 instructions.


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rather than with simple filenames.


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Only retry 2 - 5 times in quick succession and afterwards sleep a bit
to avoid creating high CPU load without any progress.


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Probably only DoS, init_get_bits sets buffer to NULL, thus causing a
NULL-dereference directly after.


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 It allows VLD VC-1/WMV3 decoding using DXVA2 (GPU assisted decoding API under
VISTA and Windows 7).
 It is implemented by using AVHWAccel API.


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initialization befre the loop filter.


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from the former.
Patch by kemuri <kemuri9 at gmail dot com>


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that case:
Avisynth -> -lavifil32
VFW Cap -> -lavicap32
Patch by kemuri <kemuri9 at gmail dot com>


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capCreateCaptureWindow() check.
Based on patch by kemuri <kemuri9 at gmail dot com>


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This should fix a segfault, also it might be faster on systems where the
+52 wasnt free.


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for this codecs all quants are the same for a single frame.


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