62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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"
|
|
|
|
extern void ff_quantize_sse2(int16_t *dst, const float *src, float *dither,
|
|
int len);
|
|
|
|
extern void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len);
|
|
extern void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len);
|
|
|
|
extern void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len);
|
|
extern 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 mm_flags = av_get_cpu_flags();
|
|
|
|
if (EXTERNAL_SSE2(mm_flags)) {
|
|
ddsp->quantize = ff_quantize_sse2;
|
|
ddsp->ptr_align = 16;
|
|
ddsp->samples_align = 8;
|
|
}
|
|
|
|
if (method == AV_RESAMPLE_DITHER_RECTANGULAR) {
|
|
if (EXTERNAL_SSE2(mm_flags)) {
|
|
ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_sse2;
|
|
}
|
|
if (EXTERNAL_AVX(mm_flags)) {
|
|
ddsp->dither_int_to_float = ff_dither_int_to_float_rectangular_avx;
|
|
}
|
|
} else {
|
|
if (EXTERNAL_SSE2(mm_flags)) {
|
|
ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_sse2;
|
|
}
|
|
if (EXTERNAL_AVX(mm_flags)) {
|
|
ddsp->dither_int_to_float = ff_dither_int_to_float_triangular_avx;
|
|
}
|
|
}
|
|
}
|