Commit Graph

7 Commits

Author SHA1 Message Date
Stefano Sabatini 3ba69a15c6 Implement av_bmg_next(), a Box-Muller Gaussian random generator.
See the thread:
"[FFmpeg-devel] [PATCH] Box-Muller gaussian generator".

Originally committed as revision 20808 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-12 16:24:37 +00:00
Diego Biurrun 89c9ff504b spelling/grammar/consistency review part I
Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-28 00:16:05 +00:00
Stefano Sabatini 987903826b Globally rename the header inclusion guard names.
Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +00:00
Michael Niedermayer f39e8b03c8 1000l typo my new PRNG converged to -1.
Originally committed as revision 14479 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-30 23:17:41 +00:00
Michael Niedermayer 310d442456 Add a multiplicative LFG for those thinking the additive is not good
enough, just 4 lines of code.

Originally committed as revision 14478 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-30 23:08:07 +00:00
Michael Niedermayer 2cf3c8632c Document av_lfg_get().
Originally committed as revision 14461 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 15:47:06 +00:00
Michael Niedermayer 2754fe8ba5 Simple lagged fibonacci PRNG.
3.5 times faster than our mersene twister.
10 times less memory needed. (=less cache trashing)

Originally committed as revision 14458 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 15:35:04 +00:00