df2057041b
lavu/riscv: byte-swap operations
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If the target supports the Basic bit-manipulation (Zbb) extension, then
the REV8 instruction is available to reverse byte order.
Note that this instruction only exists at the "XLEN" register size,
so we need to right shift the result down to the data width.
If Zbb is not supported, then this patchset does nothing. Support for
run-time detection is left for the future. Currently, there are no
bits in auxv/ELF HWCAP for Z-extensions, so there are no clean ways to
do this.
2022-09-13 16:50:43 -03:00
bf6c84d7eb
Fix compile error on bfin.
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After the removal of all Blackfin architecture optimizations in
http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b55d3bbeed375f7b74442c4dd274d116a3e3d2e1
some includes were left behind leading to a compile error:
CC libavformat/adtsenc.o
In file included from ./libavcodec/get_bits.h:35,
from ./libavcodec/ac3_parser.h:27,
from libavformat/ac3dec.c:23:
./libavcodec/mathops.h:43:29: error: bfin/mathops.h: No such file or directory
This compile error was found by buildroot autobuild system:
http://autobuild.buildroot.net/results/ae0/ae056f267e907091d09d2a1546d6f1ae02fa23b9/
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-05 01:54:47 +02:00
53e6977c07
Merge remote-tracking branch 'qatar/master'
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* qatar/master:
aarch64: bswap inline assembly
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-15 05:23:03 +01:00
d0cd2a8c46
aarch64: bswap inline assembly
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2014-01-14 22:19:38 +01:00
8bc7fe4daf
Merge remote-tracking branch 'qatar/master'
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* qatar/master:
doxygen: misc consistency, spelling and wording fixes
vcr1: drop unnecessary emms_c() calls without MMX code
Replace all uses of av_close_input_file() with avformat_close_input().
lavf: add avformat_close_input().
lavf: deprecate av_close_input_stream().
lavf doxy: add some basic demuxing documentation.
lavf doxy: add some general lavf information.
lavf doxy: add misc utility functions to a group.
lavf doxy: add av_guess_codec/format to the encoding group.
lavf doxy: add core functions to a doxy group.
Add basic libavdevice documentation.
lavc: convert error_recognition to err_recognition.
avconv: update -map option help text
x86: Require 7 registers for the cabac asm
x86: bswap: remove test for bswap instruction
bswap: make generic implementation more compiler-friendly
h264: remove useless cast
proresdec: fix decode_slice() prototype
Conflicts:
configure
doc/APIchanges
ffprobe.c
libavcodec/avcodec.h
libavcodec/celp_math.h
libavcodec/h264.c
libavfilter/src_movie.c
libavformat/anm.c
libavformat/avformat.h
libavformat/version.h
libavutil/avstring.h
libavutil/bswap.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-13 00:39:48 +01:00
f64c2e710f
bswap: make generic implementation more compiler-friendly
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With these changes, gcc 4.5 and later recognise it as a bswap
and use the proper instructions on ARM and x86. On x86, the
16-bit bswap is recognised from gcc 4.1.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-12-12 12:14:14 +00:00
e610098e7b
bswap.h: Remove disabled code.
2011-04-29 20:01:04 +02:00
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
1fc81e73dd
Make bswap.h safe to install as public API
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Originally committed as revision 24171 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-10 22:21:55 +00:00
8fc0162ac4
Add av_ prefix to bswap macros
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Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-10 22:12:30 +00:00
e6b22522c9
bswap: change ME to NE in macro names
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Other parts of FFmpeg use NE (native endian) rather than ME (machine).
This makes it consistent.
Originally committed as revision 24169 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-10 22:09:01 +00:00
cc6849ae50
bswap: 10L add missing parens around macro args
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Originally committed as revision 23070 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-09 20:32:35 +00:00
547b7bcbb7
bswap: add macros to byteswap constants
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The normal byteswap functions might use inline asm which is suboptimal
with constants (and cannot be used in static initialisers), so special
macros for constants only is needed.
We should not rely on the gcc __builtin_constant_p() test since it is
not always available.
Originally committed as revision 22990 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-29 14:41:20 +00:00
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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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
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
e482c2e2fb
AVR32: inline asm for bswap.h
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Originally committed as revision 19664 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-17 00:15:51 +00:00
63613fe615
Replace WORDS_BIGENDIAN with HAVE_BIGENDIAN
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Originally committed as revision 19508 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-26 12:20:04 +00:00
bad5537e2c
Use full internal pathname in doxygen @file directives.
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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
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
b250f9c66d
Change semantic of CONFIG_*, HAVE_* and ARCH_*.
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They are now always defined to either 0 or 1.
Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-13 23:44:16 +00:00
a2fc0f6a6d
ARM: replace "armv4l" with "arm"
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Originally committed as revision 16179 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-17 00:54:54 +00:00
3a90480ac4
split bswap.h into per-arch files
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Originally committed as revision 15663 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-21 22:29:57 +00:00
e80b267536
ARM: Kill warning in bswap_32()
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Originally committed as revision 15648 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-20 00:03:25 +00:00
be449fca79
Convert asm keyword into __asm__.
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Neither the asm() nor the __asm__() keyword is part of the C99
standard, but while GCC accepts the former in C89 syntax, it is not
accepted in C99 unless GNU extensions are turned on (with -fasm). The
latter form is accepted in any syntax as an extension (without
requiring further command-line options).
Sun Studio C99 compiler also does not accept asm() while accepting
__asm__(), albeit reporting warnings that it's not valid C99 syntax.
Originally committed as revision 15627 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-16 13:34:09 +00:00
89493e10ef
Don't include byteswap.h anymore.
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Originally committed as revision 15603 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-12 19:50:24 +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
c696a863d4
ARM: fix ARCH_ARM -> ARCH_ARMV4L test in bswap_32()
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Originally committed as revision 14240 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-15 19:06:03 +00:00
ea66f252a8
ARM: ARMv6 optimised bswap_16/32
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Originally committed as revision 14239 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-15 19:05:49 +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
3662d880ed
32/64-bit agnostic x86 bswap
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Originally committed as revision 12496 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-18 22:28:33 +00:00
70fa2e27ec
cosmetics: sanitise asm() statements in bswap.h
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Originally committed as revision 12494 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-18 20:52:37 +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
a087028ad8
Add #include "config.h" to headers that need it.
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Originally committed as revision 12431 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-13 18:04:21 +00:00
7ce6892373
misc spelling fixes
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Originally committed as revision 12410 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-10 18:42:09 +00:00
6bd859d67e
check for x86 bswap instruction
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Originally committed as revision 12375 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-08 18:33:07 +00:00
27af15dc5c
prettyprinting cosmetics
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Originally committed as revision 11941 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-02-15 14:58:18 +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
224906414b
Remove leading underscores from specifiers, they are reserved.
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Originally committed as revision 9461 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-02 17:00:04 +00:00
99545457bf
include all prerequisites in header files
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Originally committed as revision 9344 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-16 22:59:13 +00:00
bf5d7db5a0
reorder bswap functions into bit-depth, special-casing inside the functions.
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patch by Ramiro Polla ramiro lisha ufsc br
Originally committed as revision 8823 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-26 08:20:21 +00:00
853d15c2f8
make 2 functions "return x;" to simplify next patch
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patch by Ramiro Polla ramiro lisha ufsc br
Originally committed as revision 8822 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-26 08:15:39 +00:00
20d45dc2a8
Faster 32 bit byteswaping code for Blackfin.
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200% faster on BF537 compiled with gcc 4.1.
patch by Marc Hoffman, mmh pleasantst com
Originally committed as revision 8802 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-24 23:21:29 +00:00
849f10351d
rename always_inline to av_always_inline and move to common.h
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Originally committed as revision 7256 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-12-08 00:35:08 +00:00
3cd52279c9
Use common define for x86_32 and x86_64.
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Originally committed as revision 6859 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-11-01 18:34:40 +00:00
6c02f9e7ee
better #endif comment
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Originally committed as revision 6851 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-11-01 16:59:18 +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
afe6a4a0be
Use native bswap32 instruction when __CPU__ is x86_64 instead of generic 386 code.
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Originally committed as revision 5049 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-02-22 10:28:44 +00:00
bb270c0896
COSMETICS: tabs --> spaces, some prettyprinting
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Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-22 01:10:11 +00:00
Rémi Denis-Courmont
Bernd Kuhls
Michael Niedermayer
Janne Grunau
Mans Rullgard
Diego Biurrun
Aurelien Jacobs
Diego Pettenò
Carl Eugen Hoyos
Stefano Sabatini
Zuxy Meng
Benoit Fouet
Ramiro Polla
Marc Hoffman
Ivan Kalvachev