mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.2 KiB
60 lines
2.2 KiB
/* |
|
* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#include "config.h" |
|
#include "libavutil/cpu.h" |
|
#include "libavutil/x86/cpu.h" |
|
#include "libavresample/dither.h" |
|
|
|
void ff_quantize_sse2(int16_t *dst, const float *src, float *dither, int len); |
|
|
|
void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len); |
|
void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len); |
|
|
|
void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len); |
|
void ff_dither_int_to_float_triangular_avx(float *dst, int *src0, int len); |
|
|
|
av_cold void ff_dither_init_x86(DitherDSPContext *ddsp, |
|
enum AVResampleDitherMethod method) |
|
{ |
|
int cpu_flags = av_get_cpu_flags(); |
|
|
|
if (EXTERNAL_SSE2(cpu_flags)) { |
|
ddsp->quantize = ff_quantize_sse2; |
|
ddsp->ptr_align = 16; |
|
ddsp->samples_align = 8; |
|
} |
|
|
|
if (method == AV_RESAMPLE_DITHER_RECTANGULAR) { |
|
if (EXTERNAL_SSE2(cpu_flags)) { |
|
ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_sse2; |
|
} |
|
if (EXTERNAL_AVX_FAST(cpu_flags)) { |
|
ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_avx; |
|
} |
|
} else { |
|
if (EXTERNAL_SSE2(cpu_flags)) { |
|
ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_sse2; |
|
} |
|
if (EXTERNAL_AVX_FAST(cpu_flags)) { |
|
ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_avx; |
|
} |
|
} |
|
}
|
|
|