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https://github.com/FFmpeg/FFmpeg.git
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3827a86eac
AMR NB and WB decoders are optimized for MIPS architecture. Appropriate Makefiles are changed accordingly. Cnfigure script is changed in order to support optimizations. Optimizations are enabled by default when compiling is done for mips architecture. Appropriate cflags are automatically set. Support for several mips CPUs is added in configure script. New ffmpeg options are added for disabling optimizations. The FFMPEG option --disable-mipsfpu disables MIPS floating point optimizations. The FFMPEG option --disable-mips32r2 disables MIPS32R2 optimizations. The FFMPEG option --disable-mipsdspr1 disables MIPS DSP ASE R1 optimizations. The FFMPEG option --disable-mipsdspr2 disables MIPS DSP ASE R2 optimizations. Signed-off-by: Nedeljko Babic <nbabic@mips.com> Reviewed-by: Vitor Sessak <vitor1001@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Replacements for frequently missing libm functions
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*/
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#ifndef AVUTIL_LIBM_H
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#define AVUTIL_LIBM_H
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#include <math.h>
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#include "config.h"
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#include "attributes.h"
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#if HAVE_MIPSFPU && HAVE_INLINE_ASM
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#include "libavutil/mips/libm_mips.h"
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#endif /* HAVE_MIPSFPU && HAVE_INLINE_ASM*/
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#if !HAVE_CBRTF
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#undef cbrtf
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#define cbrtf(x) powf(x, 1.0/3.0)
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#endif /* HAVE_CBRTF */
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#if !HAVE_EXP2
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#undef exp2
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#define exp2(x) exp((x) * 0.693147180559945)
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#endif /* HAVE_EXP2 */
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#if !HAVE_EXP2F
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#undef exp2f
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#define exp2f(x) ((float)exp2(x))
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#endif /* HAVE_EXP2F */
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#if !HAVE_LLRINT
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#undef llrint
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#define llrint(x) ((long long)rint(x))
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#endif /* HAVE_LLRINT */
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#if !HAVE_LLRINTF
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#undef llrintf
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#define llrintf(x) ((long long)rint(x))
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#endif /* HAVE_LLRINT */
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#if !HAVE_LOG2
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#undef log2
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#define log2(x) (log(x) * 1.44269504088896340736)
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#endif /* HAVE_LOG2 */
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#if !HAVE_LOG2F
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#undef log2f
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#define log2f(x) ((float)log2(x))
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#endif /* HAVE_LOG2F */
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#if !HAVE_LRINT
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static av_always_inline av_const long int lrint(double x)
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{
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return rint(x);
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}
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#endif /* HAVE_LRINT */
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#if !HAVE_LRINTF
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static av_always_inline av_const long int lrintf(float x)
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{
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return (int)(rint(x));
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}
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#endif /* HAVE_LRINTF */
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#if !HAVE_ROUND
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static av_always_inline av_const double round(double x)
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{
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return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
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}
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#endif /* HAVE_ROUND */
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#if !HAVE_ROUNDF
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static av_always_inline av_const float roundf(float x)
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{
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return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
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}
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#endif /* HAVE_ROUNDF */
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#if !HAVE_TRUNC
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static av_always_inline av_const double trunc(double x)
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{
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return (x > 0) ? floor(x) : ceil(x);
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}
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#endif /* HAVE_TRUNC */
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#if !HAVE_TRUNCF
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static av_always_inline av_const float truncf(float x)
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{
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return (x > 0) ? floor(x) : ceil(x);
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}
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#endif /* HAVE_TRUNCF */
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#endif /* AVUTIL_LIBM_H */
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