a1245d5ca1
mathematics: Don't use division by zero in NAN/INFINITY macros
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Some compilers, MSVC among them, don't recognize the divisions by
zero as meaning infinity/nan.
These macros should, according to the standard, expand to constant
expressions, but this shouldn't matter for our usage.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-01 19:06:13 +03:00
a2b186a188
mathematics.h: remove a couple of math defines
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While these defines are not defined by the C standard they are
standardized as X/Open System Interfaces Extension. We use the
appropiate _XOPEN_SOURCE define to make them available. They
seem to be available on all FATE configs since the constants
are used in files where mathematics.h is not included.
2012-06-20 15:45:21 +02:00
0b42a9388c
avutil: add av_rescale_q_rnd() to allow different rounding
2012-02-20 15:08:40 -05:00
757cd8d876
doxy: provide a start page and document libavutil
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Introduce a basic layout, the subpages are currently left empty.
Split libavutil in multiple groups as example of the structure
2011-11-22 17:16:02 +01:00
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
448524777a
Add the M_PHI constant, contains an approximation of the golden ratio
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irrational number.
Originally committed as revision 24439 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-22 22:05:21 +00:00
49bd8e4b84
Fix grammar errors in documentation
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Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-30 15:38:06 +00:00
297084275c
Fix av_compare_mod() doxy.
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Originally committed as revision 23593 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-13 09:06:50 +00:00
65db0587a8
Add av_compare_mod()
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Originally committed as revision 23551 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-09 17:27:42 +00:00
b9f60bd8fd
Add M_SQRT2 to the constants in mathematics.h.
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Originally committed as revision 22825 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-09 23:29:47 +00:00
32e543f866
Replace @returns by @return.
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Originally committed as revision 22729 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-30 15:50:57 +00:00
2ed6f39944
Replace many includes of libavutil/common.h with what is actually needed
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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
2010-03-09 17:39:19 +00:00
94a5218c10
More accurate value for log2(10)
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Originally committed as revision 21946 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-02-21 20:47:10 +00:00
e4a35244fa
Replace log2f(10) with a constant
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Originally committed as revision 21924 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-02-20 20:13:48 +00:00
78b0182375
av_compare_ts()
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Originally committed as revision 21671 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-02-07 16:26:50 +00:00
bac24dd2a5
2nd try on documenting av_gcd().
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Originally committed as revision 20939 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-27 14:40:49 +00:00
03703cb3d1
Document av_gcd().
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Originally committed as revision 20935 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-27 12:20:06 +00:00
bd41c06f18
Define INFINITIY and NAN in mathematics.h if missing
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Originally committed as revision 19611 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-10 01:27:27 +00:00
b69201a82c
Add common.h #include, necessary for av_const.
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Originally committed as revision 16844 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-28 08:50:10 +00:00
89c9ff504b
spelling/grammar/consistency review part I
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Originally committed as revision 16840 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-28 00:16:05 +00:00
9ce6c13879
export gcd function as av_gcd()
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Originally committed as revision 16653 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-17 11:13:33 +00:00
987903826b
Globally rename the header inclusion guard names.
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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
5af4f1f3e3
move M_PI definition along with other math definitions
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Originally committed as revision 14727 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 16:01:21 +00:00
d1a12956a0
define some math constants so as not to depend on _XOPEN_SOURCE
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Originally committed as revision 14725 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-13 10:04:59 +00:00
85074d3c93
Reapply r12489: Add pure, const and malloc attributes to proper functions
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in libavutil.
Fix a compilation failure in r12489.
Originally committed as revision 12498 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-19 06:17:43 +00:00
2119bb8f51
revert r12489.
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Originally committed as revision 12490 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-18 16:29:47 +00:00
6544f48f03
Pure, const and malloc attributes to libavutil.
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Patch by Zuxy Meng: zuxy meng gmail com
Original thread:
[FFmpeg-devel] [PATCH] Pure, const and malloc attributes to libavutil
Date: 03/18/2008 6:09 AM
Originally committed as revision 12489 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-18 15:27:15 +00:00
6ef2912879
Add missing stdint.h #include to headers that use it.
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Originally committed as revision 12429 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-13 00:20:15 +00:00
5b21bdabe4
Add FFMPEG_ prefix to all multiple inclusion guards.
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Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-10-17 09:37:46 +00:00
b78e7197a8
Change license headers to say 'FFmpeg' instead of 'this program/this library'
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and fix GPL/LGPL version mismatches.
Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-07 15:30:46 +00:00
04d7f60143
Add official LGPL license headers to the files that were missing them.
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Originally committed as revision 6219 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-09-10 14:02:42 +00:00
c11c2bc20b
libavutil: Utility code from libavcodec moved to a separate library.
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Originally committed as revision 4489 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-08-01 20:07:05 +00:00
Ronald S. Bultje
Janne Grunau
Justin Ruggles
Luca Barbato
Mans Rullgard
Stefano Sabatini
Michael Niedermayer
Alex Converse
Benoit Fouet
Diego Biurrun
Aurelien Jacobs
Zuxy Meng
Alexander Strasser