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ffmpeg / libavcodec / mathops.h @ 2912e87a

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# Date Author Comment
2912e87a 03/19/2011 01:33 PM Mans Rullgard

Replace FFmpeg with Libav in licence headers

Signed-off-by: Mans Rullgard <>

cf60d669 06/30/2010 10:33 PM Måns Rullgård

Add more int packing macros, name them consistently

Originally committed as revision 23916 to svn://svn.ffmpeg.org/ffmpeg/trunk

157cb069 06/22/2010 08:57 PM Ronald S. Bultje

Rename PACK4x8() to PACK4UINT8.

Originally committed as revision 23721 to svn://svn.ffmpeg.org/ffmpeg/trunk

b39a2d19 06/22/2010 07:15 PM Ronald S. Bultje

Add a macro to pack 4 bytes into native byte-order so they can be written
at once using a single 32-bit store.

Originally committed as revision 23715 to svn://svn.ffmpeg.org/ffmpeg/trunk

e969e261 05/13/2010 04:32 PM Michael Niedermayer

Use standard C for implementing sign_extend() and zero_extend().
This fixes compilation of probetest

Originally committed as revision 23116 to svn://svn.ffmpeg.org/ffmpeg/trunk

48960b8f 02/21/2010 09:48 PM Måns Rullgård

Add zero_extend() function

Originally committed as revision 21947 to svn://svn.ffmpeg.org/ffmpeg/trunk

5e46be96 02/17/2010 11:58 PM Måns Rullgård

Move NEG_[US]SR32 macros to mathops.h

Originally committed as revision 21873 to svn://svn.ffmpeg.org/ffmpeg/trunk

f2c694af 01/26/2010 06:05 PM Måns Rullgård

Add UMULH

This function/macro returns the high half of the unsigned 64-bit
product of two unsigned 32-bit operands.

Originally committed as revision 21463 to svn://svn.ffmpeg.org/ffmpeg/trunk

5e7dfb7d 01/20/2010 06:01 AM Måns Rullgård

Move COPY3_IF_LT to lavc/mathops.h

This obscure macro is only used in motion_est.c so having it in lavc
makes more sense. See discussion here:
http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-November/056561.html

Originally committed as revision 21346 to svn://svn.ffmpeg.org/ffmpeg/trunk

b7904f78 08/17/2009 02:23 AM Måns Rullgård

AVR32: optimised mathops.h

44% faster MP3 decoding

Originally committed as revision 19667 to svn://svn.ffmpeg.org/ffmpeg/trunk

9d48e28f 05/28/2009 11:19 PM Måns Rullgård

MIPS: add MIPS64 and Loongson asm for MAC64/MLS64

Originally committed as revision 18979 to svn://svn.ffmpeg.org/ffmpeg/trunk

e20a4f53 05/20/2009 06:49 PM Måns Rullgård

mathops: sort arch-specific #include lines

Originally committed as revision 18886 to svn://svn.ffmpeg.org/ffmpeg/trunk

26f6a574 05/20/2009 06:49 PM Måns Rullgård

mathops: whitespace cosmetics

Originally committed as revision 18885 to svn://svn.ffmpeg.org/ffmpeg/trunk

101dfa7d 03/03/2009 12:03 AM Måns Rullgård

Add sign_extend() function to mathops.h

Originally committed as revision 17738 to svn://svn.ffmpeg.org/ffmpeg/trunk

6166516d 02/08/2009 05:44 PM Loren Merritt

re-enable mid_pred asm on x86_64. (broke in r16681)

Originally committed as revision 17058 to svn://svn.ffmpeg.org/ffmpeg/trunk

406792e7 01/19/2009 03:46 PM Diego Biurrun

cosmetics: Remove pointless period after copyright statement non-sentences.

Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk

199436b9 01/18/2009 10:57 PM Aurelien Jacobs

moves mid_pred() into mathops.h (with arch specific code split by directory)

Originally committed as revision 16681 to svn://svn.ffmpeg.org/ffmpeg/trunk

b250f9c6 01/13/2009 11:44 PM Aurelien Jacobs

Change semantic of CONFIG_*, HAVE_* and ARCH_*.
They are now always defined to either 0 or 1.

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

79cb09b2 12/27/2008 11:33 AM Diego Biurrun

consistency cosmetics: Rename POWERPC identifiers to PPC.

Originally committed as revision 16359 to svn://svn.ffmpeg.org/ffmpeg/trunk

a6493a8f 12/22/2008 09:12 AM Diego Biurrun

Rename libavcodec/i386/ --> libavcodec/x86/.
It contains optimizations that are not specific to i386 and
libavutil uses this naming scheme already.

Originally committed as revision 16270 to svn://svn.ffmpeg.org/ffmpeg/trunk

a2fc0f6a 12/17/2008 12:54 AM Måns Rullgård

ARM: replace "armv4l" with "arm"

Originally committed as revision 16179 to svn://svn.ffmpeg.org/ffmpeg/trunk

4deaa946 11/24/2008 09:28 AM Måns Rullgård

Add shift argument to MULL macro

This replaces use of FRAC_BITS in the MULL definition with a third
argument specifying the shift amount. All uses of this macro are
updated to pass FRAC_BITS as third argument.

Originally committed as revision 15921 to svn://svn.ffmpeg.org/ffmpeg/trunk

98790382 08/31/2008 07:39 AM Stefano Sabatini

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_"....

ffa978f1 07/13/2008 12:22 PM Måns Rullgård

mathops: add MAC64, MLS64, and MLS16
MAC64: 64 += 32 x 32 (bits)
MLS64: 64 -= 32 x 32
MLS16: 32 -= 16 x 16

Originally committed as revision 14198 to svn://svn.ffmpeg.org/ffmpeg/trunk

245976da 05/09/2008 11:56 AM Diego Biurrun

Use full path for #includes from another directory.

Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk

e6b790f9 03/17/2008 02:33 AM Måns Rullgård

fix typo ARCH_PPC -> ARCH_POWERPC

Originally committed as revision 12465 to svn://svn.ffmpeg.org/ffmpeg/trunk

5b21bdab 10/17/2007 09:37 AM Diego Biurrun

Add FFMPEG_ prefix to all multiple inclusion guards.

Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk

14da6549 08/30/2007 03:16 PM Marc Hoffman

Hooking bfin/mathops.h

Originally committed as revision 10263 to svn://svn.ffmpeg.org/ffmpeg/trunk

99545457 06/16/2007 10:59 PM Måns Rullgård

include all prerequisites in header files

Originally committed as revision 9344 to svn://svn.ffmpeg.org/ffmpeg/trunk

849f1035 12/08/2006 12:35 AM Måns Rullgård

rename always_inline to av_always_inline and move to common.h

Originally committed as revision 7256 to svn://svn.ffmpeg.org/ffmpeg/trunk

419b8784 11/01/2006 05:01 PM Diego Biurrun

Add ARCH_X86_32 as a new define for 32 bit x86 architectures and change
the semantics of ARCH_X86 to mean both 32 and 64 bits.

Originally committed as revision 6852 to svn://svn.ffmpeg.org/ffmpeg/trunk

b78e7197 10/07/2006 03:30 PM Diego Biurrun

Change license headers to say 'FFmpeg' instead of 'this program/this library'
and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk

99aed7c8 09/19/2006 10:22 PM Luca Barbato

New single instruction math operation header

Originally committed as revision 6291 to svn://svn.ffmpeg.org/ffmpeg/trunk