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* commit '7d7355aa92bb36ca0765c49a569a999bcb96f332':
x86: Add SSSE3_SLOW CPU flag and related convenience macros
Merged-by: James Almer <jamrial@gmail.com>
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Make the one-time initialization in av_get_cpu_flags() thread-safe. The
static variable |cpu_flags| in libavutil/cpu.c is read and written using
normal load and store operations. These are considered as data races.
The fix is to use atomic load and store operations.
The fix can be verified by running the libavutil/tests/cpu_init.c test
program under ThreadSanitizer:
./configure --toolchain=clang-tsan
make libavutil/tests/cpu_init
libavutil/tests/cpu_init
There should be no warnings from ThreadSanitizer.
Co-author: Dmitry Vyukov of Google, who suggested the data race fix.
Signed-off-by: Wan-Teh Chang <wtc@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: Lou Logan <lou@lrcd.com>
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* commit 'e2710e790c09e49e86baa58c6063af0097cc8cb0':
arm: add a cpu flag for the VFPv2 vector mode
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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The vector mode was deprecated in ARMv7-A/VFPv3 and various cpu
implementations do not support it in hardware. Vector mode code will
depending the OS either be emulated in software or result in an illegal
instruction on cpus which does not support it. This was not really
problem in practice since NEON implementations of the same functions are
preferred. It will however become a problem for checkasm which tests
every cpu flag separately.
Since this is a cpu feature newer cpu do not support anymore the
behaviour of this flag differs from the other flags. It can be only
activated by runtime cpu feature selection.
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Deprecated in 11/2012.
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* commit '7d07ee5a9bd170a06d26fd967cf8de5d3b1ce331':
ppc: cpu: Add support for VSX and POWER8 extensions
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
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this allows disabling and enabling it
it also prevents crashes if vfpv3 and neon are disabled which previously
would have enabled the flag
And last but not least one can enable setend on cpus like cortex-a8 where
its fast but disabled by default
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '8675bcb0addb1c7fb0b04682d1f3f95d5b8dae14':
aarch64: add armv8 CPU flag
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Based on x264 code
Signed-off-by: James Almer <jamrial@gmail.com>
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Based on x264 code
Signed-off-by: James Almer <jamrial@gmail.com>
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Based on x264 code
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Based on x264 code
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '4d6ee0725553a43ba88d6f8327ebcf8f1c5ae8d4':
libavutil: x86: Add AVX2 capable CPU detection.
Conflicts:
libavutil/cpu.c
libavutil/cpu.h
libavutil/x86/cpu.c
See: 865b70bc5d1cf37ec6d6cb729a69dda2cca28bd5
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Patch based on x264's AVX2 detection
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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* commit '80fefbed623491b92fe59ead99225f99c0d0ca08':
x86: cpu: Restore some explanatory comments removed in 7160bb7
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'b78b10c4b78b696927f2801cf2d9f193b4eff28b':
avutil: Move internal CPU detection function declarations to private header
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '2a6eaeaa85d17b27ee0dd449183ec197c35c9675':
Move get_logical_cpus() from lavc/pthread to lavu/cpu.
Conflicts:
doc/APIchanges
libavcodec/pthread.c
libavutil/cpu.c
libavutil/cpu.h
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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It will be useful in lavfi, and could conceivably be useful to the user
applications as well.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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This function is problematic in several ways, its also quite
unpredictable which flags it ends up turning on
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* qatar/master:
lavr: fix handling of custom mix matrices
fate: force pix_fmt in lagarith-rgb32 test
fate: add tests for lagarith lossless video codec.
ARMv6: vp8: fix stack allocation with Apple's assembler
ARM: vp56: allow inline asm to build with clang
fft: 3dnow: fix register name typo in DECL_IMDCT macro
x86: dct32: port to cpuflags
x86: build: replace mmx2 by mmxext
Revert "wmapro: prevent division by zero when sample rate is unspecified"
wmapro: prevent division by zero when sample rate is unspecified
lagarith: fix color plane inversion for YUY2 output.
lagarith: pad RGB buffer by 1 byte.
dsputil: make add_hfyu_left_prediction_sse4() support unaligned src.
Conflicts:
doc/APIchanges
libavcodec/lagarith.c
libavfilter/x86/gradfun.c
libavutil/cpu.h
libavutil/version.h
libswscale/utils.c
libswscale/version.h
libswscale/x86/yuv2rgb.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Refactoring mmx2/mmxext YASM code with cpuflags will force renames.
So switching to a consistent naming scheme beforehand is sensible.
The name "mmxext" is more official and widespread and also the name
of the CPU flag, as reported e.g. by the Linux kernel.
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* qatar/master: (29 commits)
lavfi: reclassify showfiltfmts as a TESTPROG
graph2dot: fix printf format specifier
swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32.
vp8: loopfilter >=sse2 functions need aligned stack on x86-32.
amr: remove shift out of the AMR_BIT() macro.
dsputilenc: group yasm and inline asm function pointer assignment.
mov: use forward declaration of a function instead of a table.
Clarify Doxygen comment for FF_API_* #defines.
configure: simplify get_version()
Create version.h headers for libraries that lack them
gitignore: Use full path instead of relative path to specify patterns
mpegvideo: remove VLAs
Add XTEA encryption support in libavutil
Add Blowfish encryption support in libavutil
eval: Add the isinf() function and tests for it
flacdec: move lpc filter to flacdsp
flacdec: split off channel decorrelation as flacdsp
avplay: Add an option for not limiting the input buffer size
FATE: add a test for WMA cover art.
FATE: add a test for apetag cover art
...
Conflicts:
.gitignore
configure
ffplay.c
libavcodec/Makefile
libavcodec/error_resilience.c
libavcodec/mpegvideo.c
libavcodec/ratecontrol.c
libavdevice/avdevice.h
libavfilter/Makefile
libavfilter/filtfmts.c
libavfilter/version.h
libavformat/mov.c
libavformat/version.h
libavutil/Makefile
libavutil/avutil.h
libavutil/version.h
libswscale/swscale.h
libswscale/x86/swscale_mmx.c
tests/fate/libavutil.mak
tests/lavfi-regression.sh
tools/graph2dot.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* qatar/master:
x86: Only use optimizations with cmov if the CPU supports the instruction
x86: Add CPU flag for the i686 cmov instruction
x86: remove unused inline asm macros from dsputil_mmx.h
x86: move some inline asm macros to the only places they are used
lavfi: Add the af_channelmap audio channel mapping filter.
lavfi: add join audio filter.
lavfi: allow audio filters to request a given number of samples.
lavfi: support automatically inserting the fifo filter when needed.
lavfi/audio: eliminate ff_default_filter_samples().
Conflicts:
Changelog
libavcodec/x86/h264dsp_mmx.c
libavfilter/Makefile
libavfilter/allfilters.c
libavfilter/avfilter.h
libavfilter/avfiltergraph.c
libavfilter/version.h
libavutil/x86/cpu.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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and suggest that av_parse_cpu_caps() be used.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* qatar/master:
dsputil: fix invalid array indexing
configure: add libavresample to rpath
build: icc: silence some warnings
fft-test: add option to set cpuflag mask
cpu: recognise only cpu flag names pertinent to the architecture
avutil: add av_parse_cpu_flags() function
vp8: armv6: fix non-armv6t2 build
vp8: armv6 optimisations
vp8: arm: separate ARMv6 functions from NEON
ARM: add some compatibility macros
mov: support eac3 audio
avf: fix faulty check in has_duration
Conflicts:
configure
doc/APIchanges
ffmpeg.c
libavcodec/arm/Makefile
libavcodec/arm/asm.S
libavcodec/arm/vp8dsp_armv6.S
libavcodec/arm/vp8dsp_init_arm.c
libavutil/avutil.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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This moves the cpu flag parsing code from avconv to avutil so
it can be accessed elsewhere.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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* qatar/master:
ARM: allow runtime masking of CPU features
dsputil: remove unused functions
mov: Treat keyframe indexes as 1-origin if starting at non-zero.
mov: Take stps entries into consideration also about key_off.
Remove lowres video decoding
Conflicts:
ffmpeg.c
ffplay.c
libavcodec/arm/vp8dsp_init_arm.c
libavcodec/libopenjpegdec.c
libavcodec/mjpegdec.c
libavcodec/mpegvideo.c
libavcodec/utils.c
libavformat/mov.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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This allows masking CPU features with the -cpuflags avconv option
which is useful for testing different optimisations without rebuilding.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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* qatar/master:
pcm-mpeg: convert to bytestream2 API
Revert "h264: clear trailing bits in partially parsed NAL units"
remove iwmmxt optimizations
mimic: do not continue if swap_buf_size is 0
mimic: convert to bytestream2 API
frwu: use MKTAG to check marker instead of AV_RL32
txd: port to bytestream2 API
c93: convert to bytestream2 API
iff: make .long_name more descriptive
FATE: add test for cdxl demuxer
rtsp: Fix a typo
Conflicts:
libavcodec/arm/dsputil_iwmmxt.c
libavcodec/arm/dsputil_iwmmxt_rnd_template.c
libavcodec/arm/mpegvideo_iwmmxt.c
libavcodec/c93.c
libavcodec/txd.c
libavutil/arm/cpu.c
tests/fate/demux.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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The were broken since August of 2010 without anyone noticing until
three weeks ago. Nobody cares about it anymore and hopefully Marvell
will support NEON like in the PXA978 from now on.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* qatar/master:
SBR DSP: fix SSE code to not use SSE2 instructions.
cpu: initialize mask to -1, so that by default, optimizations are used.
error_resilience: initialize s->block_index[].
svq3: protect against negative quantizers.
Don't use ff_cropTbl[] for IDCT.
swscale: make filterPos 32bit.
FATE: add CPUFLAGS variable, mapping to -cpuflags avconv option.
avconv: add -cpuflags option for setting supported cpuflags.
cpu: add av_set_cpu_flags_mask().
libx264: Allow overriding the sliced threads option
avconv: fix counting encoded video size.
Conflicts:
doc/APIchanges
doc/fate.texi
doc/ffmpeg.texi
ffmpeg.c
libavcodec/h264idct_template.c
libavcodec/svq3.c
libavutil/avutil.h
libavutil/cpu.c
libavutil/cpu.h
libswscale/swscale.c
tests/Makefile
tests/fate-run.sh
tests/regression-funcs.sh
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Some MMX-only CPUs do not have support for CMOV.
All SSE/MMX2 CPUs should be fine, thus no check was
added to those functions.
See also https://sourceforge.net/tracker/?func=detail&aid=3358347&group_id=205275&atid=992986
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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