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162 Commits

Author SHA1 Message Date
Peter Meerwald
bf07d813f6 libavutil: Add av_clip_intp2 
there already is a function, av_clip_uintp2() that clips a signed integer
to an unsigned power-of-two range, i.e. 0,2^p-1

this patch adds a function av_clip_intp2() that clips a signed integer
to a signed power-of-two range, i.e. -(2^p),(2^p-1)

the new function can be used as a special case for av_clip(), e.g.
av_clip(x, -8192, 8191) can be rewritten as av_clip_intp2(x, 13)

there are ARM instructions, usat and ssat resp., which map nicely to these
functions (see next patch)

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-02-21 00:54:40 +01:00
Diego Biurrun
8f8bc92365 Add missing #includes for *INT64_MAX and *INT64_C 2013-11-23 21:55:52 +01:00
Reimar Döffinger
efa7f42020 Use the avstring.h locale-independent character type functions 
Make sure the behavior does not change with the locale.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-03-07 15:16:36 +02:00
Mans Rullgard
7ba0c1b390 avutil: change GET_UTF8 to not use av_log2() 
This removes an inter-library dependency on ff_log2_tab causing
linking errors in some configurations.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-11-14 13:50:42 +00:00
Mans Rullgard
8c0a3d5fe0 avutil: remove inline av_log2 from public API 
This removes inline av_log2 and av_log2_16bit from the public API,
instead exporting them as regular functions.  In-tree code still
gets the inline and otherwise optimised variants.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-10-20 12:28:45 +01:00
Diego Biurrun
d5c62122a7 Move av_reverse table to libavcodec 
It is only used in that library.
 2012-10-12 20:39:18 +02:00
Mans Rullgard
6c4975eaaf libavutil: add saturating addition functions 
Fixed-point audio codecs often use saturating arithmetic, and
special instructions for these operations are common.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-08-13 01:03:10 +01:00
Daniel Verkamp
b73ec05473 Add av_popcount64 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2012-01-03 14:25:43 +01:00
Mans Rullgard
6b34fbba9b MK(BE)TAG: avoid undefined shifts 
Casting the left-most byte to unsigned avoids an undefined
result of the shift by 24 if bit 7 is set.  This affects
the rm demuxer.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-11-25 00:20:03 +00:00
Diego Biurrun
adbfc605f6 doxygen: Consistently use '@' instead of '\' for Doxygen markup. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-06-24 00:37:49 +02:00
Mans Rullgard
1550f45a89 Add av_clip_uintp2() function 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-05-13 16:45:24 -04:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Jason Garrett-Glaser
eb3755a5aa Force inlining of avutil common routines 
On some versions of gcc, these weren't always getting inlined due to hitting
the inline cap limit in some files.  This is generally bad, as most of these
functions are smaller inlined than not.
 2011-02-17 15:25:25 -08:00
Tomas Härdin
bc6f0af289 Add av_popcount() to libavutil/common.h and bump minor version 
Originally committed as revision 25120 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-09-14 14:45:43 +00:00
Benoit Fouet
573af7545e Add missing parentheses to AV_NE macro. 
Originally committed as revision 24885 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-23 15:31:50 +00:00
Måns Rullgård
6a36facc3d Fix out-of-tree build 
Originally committed as revision 24816 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-17 18:48:56 +00:00
Stefano Sabatini
4f2d2e4ed9 Define macro AV_NE() and use it in libavdevice. 
Help further refactoring.

Originally committed as revision 24814 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-17 18:25:34 +00:00
Måns Rullgård
216b43aed2 Allow arch-overrides for all common.h clip and log2 functions 
Originally committed as revision 24087 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-07 17:27:45 +00:00
Måns Rullgård
a955b59658 Remove macro duplication between common.h and intmath.h 
Originally committed as revision 24086 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-07 17:27:43 +00:00
Måns Rullgård
c2a5b4731b Improve GET_UTF{8,16} documentation 
Originally committed as revision 23909 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-30 20:09:48 +00:00
Måns Rullgård
49bd8e4b84 Fix grammar errors in documentation 
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-30 15:38:06 +00:00
Ronald S. Bultje
45a1b86a05 Add av_clip_int8(), used in the upcoming VP8 decoder. 
Originally committed as revision 23713 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-22 19:11:33 +00:00
Benoit Fouet
1c7c0e2d40 Add missing parentheses in MKTAG and MKBETAG macros. 
Originally committed as revision 23711 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-22 15:02:09 +00:00
Ronald S. Bultje
90bc36b063 Reindent after r22968. 
Originally committed as revision 22969 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-26 21:01:38 +00:00
Ronald S. Bultje
ad6408960b Write clip-related decimal numbers into hex, where they make more sense. 
Originally committed as revision 22968 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-26 21:00:33 +00:00
Ronald S. Bultje
2d0525c27c Fix broken 32-bit clipping, and write numbers in hex instead of decimal so 
they are easier to understand. Also give the add a 'u' postfix to silence
a pre-c99 compiler warning.

Originally committed as revision 22965 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-26 13:36:17 +00:00
Ronald S. Bultje
b1078e9fe6 Move clipping of audio samples (for those codecs outputting float) from decoder 
to the audio conversion routines.

Originally committed as revision 22937 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-21 17:57:48 +00:00
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-20 14:45:34 +00:00
Måns Rullgård
b90b1b4c3c Fix build on configurations without fast av_log2() 
This is a bit hackish.  I will try to think of something nicer, but
this will do for now.

Originally committed as revision 22366 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-09 01:19:28 +00:00
Måns Rullgård
3369888aa5 cosmetics: indent 
Originally committed as revision 22348 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-08 21:29:01 +00:00
Måns Rullgård
2acb5e10b9 Merge two adjacent ifdef blocks 
Originally committed as revision 22347 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-08 21:28:58 +00:00
Måns Rullgård
2791730dbf Move gcc attribute macros to new header libavutil/attributes.h 
Originally committed as revision 22346 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-08 21:28:56 +00:00
Anton Khirnov
ae529ddb32 Add PUT_UTF16() macro. 
Patch by Anton Khirnov <wyskas gmail com>.

Originally committed as revision 22030 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-24 18:08:30 +00:00
Måns Rullgård
544f5a922f Optimise av_log2 with clz when available 
10% faster flac decoding on x86 and ARM.

Originally committed as revision 21217 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-01-14 19:58:12 +00:00
Francesco Lavra
91cc5d3767 Move ff_reverse in libavcodec to av_reverse in libavutil. 
Patch by Francesco Lavra, francescolavra interfree it

Originally committed as revision 20484 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-11-09 09:11:35 +00:00
Anton Khirnov
20c6837880 id3v2: Add support for UTF-16 encoding. 
patch by Anton Khirnov, wyskas gmail com

Originally committed as revision 20006 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-23 18:22:00 +00:00
Thilo Borgmann
c6dbbc4576 Add function to compute ceil(log2(x)). 
Patch by Thilo Borgmann <thilo.borgmann _at_ googlemail.com>

Originally committed as revision 19747 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-08-30 15:50:03 +00:00
Ramiro Polla
f51fb686de Introduce av_clip_uint16(). 
Originally committed as revision 19636 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-08-13 18:47:13 +00:00
Diego Biurrun
75af07495a Revert addition of '#undef av_always_inline' to config.h in the small case. 
Instead, #include config.h at the top of common.h so that av_always_inline
does not get doubly defined.

Originally committed as revision 19553 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-30 21:58:43 +00:00
Carl Eugen Hoyos
a3a55b7848 Icc does not support attribute flatten, do not try to use it. 
Originally committed as revision 19286 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-28 18:28:27 +00:00
Carl Eugen Hoyos
06be9d9d8e Icc 11.1 does not support attributes force_align_arg_pointer, alloc_size and cold. 
Originally committed as revision 19282 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-27 08:34:04 +00:00
David Conrad
ef516f7377 Move ALIGN macro to libavutil/common.h and use it in various places 
Originally committed as revision 18898 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-22 21:32:13 +00:00
Måns Rullgård
03bc0f3744 Avoid warnings from AV_GCC_VERSION_AT_LEAST with some non-gcc compilers 
Originally committed as revision 17508 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-22 00:13:23 +00:00
Carl Eugen Hoyos
0dd8966638 Silence one icc warning: 
variable "..." is used before its value is set

Originally committed as revision 17127 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-10 09:12:52 +00:00
Diego Biurrun
b7d3a8c13f Use AV_GCC_VERSION_AT_LEAST instead of complicated __GNUC__ version check. 
Originally committed as revision 17114 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-10 01:24:06 +00:00
Michael Niedermayer
3b49f69077 av_flatten to make the similarly named attribute available. 
Originally committed as revision 17105 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-09 21:47:57 +00:00
Michael Niedermayer
51066987cf av_uninit() to suppress false uninitialized warnings from gcc without deoptimizing code. 
Originally committed as revision 17104 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-09 21:47:05 +00:00
Diego Biurrun
bad5537e2c Use full internal pathname in doxygen @file directives. 
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.

Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-01 02:00:19 +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
Diego Biurrun
8076c4731f Reorganize header #includes: Unconditionally #include standard C headers, 
group all local #includes together.

Originally committed as revision 16796 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-25 23:21:02 +00:00