Muhammad Faiz
1af615683e
avcodec/fft_template: use ff_thread_once on costable initialization
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Make it thread-safe and avoid redundant initialization.
Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
2017-07-07 09:41:52 +07:00
Michael Niedermayer
1197c04896
avcodec/fft_template: Fix multiple runtime error: signed integer overflow: -1943918714 - 1935113003 cannot be represented in type 'int'
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Fixes: 1735/clusterfuzz-testcase-minimized-5350472347025408
This uses unsigned instead of SUINT because the later was rejected by multiple developers
See: [FFmpeg-devel] [PATCH] avcodec/fft_template: Fix multiple runtime error: signed integer overflow: -1943918714 - 1935113003 cannot be represented in type 'int'
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-06-11 00:56:33 +02:00
Michael Niedermayer
305344d89e
avcodec/fft: Add revtab32 for FFTs with more than 65536 samples
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x86 optimizations are used only for the cases they support (<=65536 samples)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-03-04 16:05:47 +01:00
Michael Niedermayer
ae76b84221
avcodec: Extend fft to size 2^17
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Asked-for-by: durandal_1707
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-03-04 13:51:42 +01:00
Reimar Döffinger
2bb66cc8be
fft_template: Move variables to where they are used.
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Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2014-08-31 10:25:36 +02:00
Reimar Döffinger
1654514ab0
fft: add ff_ prefix to some global arrays.
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Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2014-08-31 10:25:36 +02:00
Reimar Döffinger
e2cd28c926
fft: add missing const.
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This table was the largest object in FFmpeg's .data,
and really should be in .rodata.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2014-08-30 16:33:00 +02:00
Michael Niedermayer
13f4428915
Merge commit '650c4300d94aa9398ff1dd4f454bf39eaa285f62'
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* commit '650c4300d94aa9398ff1dd4f454bf39eaa285f62':
aarch64: NEON float FFT
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-22 23:06:24 +02:00
Janne Grunau
650c4300d9
aarch64: NEON float FFT
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Approximately as fast as the ARM NEON version on Apple's A7.
2014-04-22 19:35:40 +02:00
Michael Niedermayer
99b6357f37
rename CONFIG_FFT_FIXED_32 -> FFT_FIXED_32
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This matches FFT_FLOAT
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-07 13:11:06 +01:00
Michael Niedermayer
7778979f6f
Merge commit '794fcf79a89eca2d4e889803b2c804a0b1defbb3'
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* commit '794fcf79a89eca2d4e889803b2c804a0b1defbb3':
Rename CONFIG_FFT_FLOAT ---> FFT_FLOAT
Conflicts:
libavcodec/fft-internal.h
libavcodec/fft-test.c
libavcodec/fft_fixed.c
libavcodec/fft_float.c
libavcodec/fft_template.c
libavcodec/mdct_fixed.c
libavcodec/mdct_float.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-07 13:10:56 +01:00
Diego Biurrun
794fcf79a8
Rename CONFIG_FFT_FLOAT ---> FFT_FLOAT
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The define does not originate from configure, so it should not
have a name that is CONFIG_-prefixed.
2014-01-06 19:12:48 +01:00
Michael Niedermayer
6a7980e2cd
Merge remote-tracking branch 'qatar/master'
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* qatar/master:
dct/fft: Give consistent names to fixed/float template files
Conflicts:
libavcodec/fft_fixed.c
libavcodec/fft_float.c
libavcodec/mdct_fixed.c
libavcodec/mdct_float.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-21 19:26:01 +01:00
Diego Biurrun
ac0e03bab0
dct/fft: Give consistent names to fixed/float template files
2013-11-21 15:59:46 +01:00
