mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/*
|
|
* Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
|
|
*
|
|
* This file is part of libswresample
|
|
*
|
|
* libswresample 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.
|
|
*
|
|
* libswresample 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 libswresample; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/x86/cpu.h"
|
|
#include "libswresample/swresample_internal.h"
|
|
|
|
#define D(type, simd) \
|
|
mix_1_1_func_type ff_mix_1_1_a_## type ## _ ## simd;\
|
|
mix_2_1_func_type ff_mix_2_1_a_## type ## _ ## simd;
|
|
|
|
D(float, sse)
|
|
D(float, avx)
|
|
D(int16, mmx)
|
|
D(int16, sse2)
|
|
|
|
av_cold int swri_rematrix_init_x86(struct SwrContext *s){
|
|
#if HAVE_YASM
|
|
int mm_flags = av_get_cpu_flags();
|
|
int nb_in = av_get_channel_layout_nb_channels(s->in_ch_layout);
|
|
int nb_out = av_get_channel_layout_nb_channels(s->out_ch_layout);
|
|
int num = nb_in * nb_out;
|
|
int i,j;
|
|
|
|
s->mix_1_1_simd = NULL;
|
|
s->mix_2_1_simd = NULL;
|
|
|
|
if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
|
|
if(EXTERNAL_MMX(mm_flags)) {
|
|
s->mix_1_1_simd = ff_mix_1_1_a_int16_mmx;
|
|
s->mix_2_1_simd = ff_mix_2_1_a_int16_mmx;
|
|
}
|
|
if(EXTERNAL_SSE2(mm_flags)) {
|
|
s->mix_1_1_simd = ff_mix_1_1_a_int16_sse2;
|
|
s->mix_2_1_simd = ff_mix_2_1_a_int16_sse2;
|
|
}
|
|
s->native_simd_matrix = av_mallocz_array(num, 2 * sizeof(int16_t));
|
|
s->native_simd_one = av_mallocz(2 * sizeof(int16_t));
|
|
if (!s->native_simd_matrix || !s->native_simd_one)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for(i=0; i<nb_out; i++){
|
|
int sh = 0;
|
|
for(j=0; j<nb_in; j++)
|
|
sh = FFMAX(sh, FFABS(((int*)s->native_matrix)[i * nb_in + j]));
|
|
sh = FFMAX(av_log2(sh) - 14, 0);
|
|
for(j=0; j<nb_in; j++) {
|
|
((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)+1] = 15 - sh;
|
|
((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)] =
|
|
((((int*)s->native_matrix)[i * nb_in + j]) + (1<<sh>>1)) >> sh;
|
|
}
|
|
}
|
|
((int16_t*)s->native_simd_one)[1] = 14;
|
|
((int16_t*)s->native_simd_one)[0] = 16384;
|
|
} else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
|
|
if(EXTERNAL_SSE(mm_flags)) {
|
|
s->mix_1_1_simd = ff_mix_1_1_a_float_sse;
|
|
s->mix_2_1_simd = ff_mix_2_1_a_float_sse;
|
|
}
|
|
if(EXTERNAL_AVX(mm_flags)) {
|
|
s->mix_1_1_simd = ff_mix_1_1_a_float_avx;
|
|
s->mix_2_1_simd = ff_mix_2_1_a_float_avx;
|
|
}
|
|
s->native_simd_matrix = av_mallocz_array(num, sizeof(float));
|
|
s->native_simd_one = av_mallocz(sizeof(float));
|
|
if (!s->native_simd_matrix || !s->native_simd_one)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(s->native_simd_matrix, s->native_matrix, num * sizeof(float));
|
|
memcpy(s->native_simd_one, s->native_one, sizeof(float));
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|