This reduces the number of false dependencies on header files and
speeds up compilation.

Originally committed as revision 22407 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22099 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21756 to svn://svn.ffmpeg.org/ffmpeg/trunk

that output may be written as uint32_t since output buffer may not be aligned
(and it's silly to force alignment on it) and it does not work in that case
properly on some architectures.

Originally committed as revision 21754 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavutil/sha.c:183: warning: unused variable `T2'

Originally committed as revision 19551 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19450 to svn://svn.ffmpeg.org/ffmpeg/trunk

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and leave av_sha1_* functions for compatibility until next major bump.

Originally committed as revision 19394 to svn://svn.ffmpeg.org/ffmpeg/trunk

when it's added.

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Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk

Generating the test program is integrated into the build system already.

Originally committed as revision 16804 to svn://svn.ffmpeg.org/ffmpeg/trunk

They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 11838 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 11208 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch from Diego Pettenò flameeyesATgmailDOTcom

Originally committed as revision 11207 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 11079 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 8380 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 8376 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 8372 to svn://svn.ffmpeg.org/ffmpeg/trunk

so VARIANT0 will be big and a few % faster, VARIANT1/2 are unaffected

Originally committed as revision 8371 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8368 to svn://svn.ffmpeg.org/ffmpeg/trunk

benchmarks welcome ...

Originally committed as revision 8367 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8362 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8361 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8360 to svn://svn.ffmpeg.org/ffmpeg/trunk