498 lines
19 KiB
C
498 lines
19 KiB
C
/*
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* Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at)
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*
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* This file is part of libswresample
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*
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* libswresample 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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* libswresample 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 libswresample; 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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#include "swresample_internal.h"
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#include "libavutil/audioconvert.h"
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#include "libavutil/avassert.h"
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#define ONE (1.0)
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#define R(x) x
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#define SAMPLE float
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#define COEFF float
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#define INTER float
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#define RENAME(x) x ## _float
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#include "rematrix_template.c"
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#undef SAMPLE
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#undef RENAME
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#undef R
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#undef ONE
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#undef COEFF
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#undef INTER
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#define ONE (1.0)
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#define R(x) x
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#define SAMPLE double
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#define COEFF double
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#define INTER double
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#define RENAME(x) x ## _double
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#include "rematrix_template.c"
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#undef SAMPLE
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#undef RENAME
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#undef R
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#undef ONE
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#undef COEFF
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#undef INTER
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#define ONE (-32768)
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#define R(x) (((x) + 16384)>>15)
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#define SAMPLE int16_t
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#define COEFF int
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#define INTER int
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#define RENAME(x) x ## _s16
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#include "rematrix_template.c"
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#define FRONT_LEFT 0
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#define FRONT_RIGHT 1
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#define FRONT_CENTER 2
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#define LOW_FREQUENCY 3
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#define BACK_LEFT 4
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#define BACK_RIGHT 5
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#define FRONT_LEFT_OF_CENTER 6
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#define FRONT_RIGHT_OF_CENTER 7
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#define BACK_CENTER 8
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#define SIDE_LEFT 9
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#define SIDE_RIGHT 10
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#define TOP_CENTER 11
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#define TOP_FRONT_LEFT 12
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#define TOP_FRONT_CENTER 13
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#define TOP_FRONT_RIGHT 14
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#define TOP_BACK_LEFT 15
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#define TOP_BACK_CENTER 16
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#define TOP_BACK_RIGHT 17
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int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride)
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{
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int nb_in, nb_out, in, out;
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if (!s || s->in_convert) // s needs to be allocated but not initialized
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return AVERROR(EINVAL);
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memset(s->matrix, 0, sizeof(s->matrix));
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nb_in = av_get_channel_layout_nb_channels(s->in_ch_layout);
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nb_out = av_get_channel_layout_nb_channels(s->out_ch_layout);
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for (out = 0; out < nb_out; out++) {
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for (in = 0; in < nb_in; in++)
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s->matrix[out][in] = matrix[in];
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matrix += stride;
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}
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s->rematrix_custom = 1;
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return 0;
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}
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static int even(int64_t layout){
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if(!layout) return 1;
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if(layout&(layout-1)) return 1;
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return 0;
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}
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static int clean_layout(SwrContext *s, int64_t layout){
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if((layout & AV_CH_LAYOUT_STEREO_DOWNMIX) == AV_CH_LAYOUT_STEREO_DOWNMIX)
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return AV_CH_LAYOUT_STEREO;
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if(layout && layout != AV_CH_FRONT_CENTER && !(layout&(layout-1))) {
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char buf[128];
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av_get_channel_layout_string(buf, sizeof(buf), -1, layout);
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av_log(s, AV_LOG_VERBOSE, "Treating %s as mono\n", buf);
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return AV_CH_FRONT_CENTER;
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}
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return layout;
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}
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static int sane_layout(int64_t layout){
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if(!(layout & AV_CH_LAYOUT_SURROUND)) // at least 1 front speaker
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return 0;
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if(!even(layout & (AV_CH_FRONT_LEFT | AV_CH_FRONT_RIGHT))) // no asymetric front
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return 0;
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if(!even(layout & (AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT))) // no asymetric side
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return 0;
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if(!even(layout & (AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT)))
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return 0;
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if(!even(layout & (AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER)))
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return 0;
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if(av_get_channel_layout_nb_channels(layout) >= SWR_CH_MAX)
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return 0;
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return 1;
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}
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av_cold static int auto_matrix(SwrContext *s)
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{
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int i, j, out_i;
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double matrix[64][64]={{0}};
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int64_t unaccounted, in_ch_layout, out_ch_layout;
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double maxcoef=0;
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char buf[128];
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const int matrix_encoding = s->matrix_encoding;
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in_ch_layout = clean_layout(s, s->in_ch_layout);
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if(!sane_layout(in_ch_layout)){
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av_get_channel_layout_string(buf, sizeof(buf), -1, s->in_ch_layout);
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av_log(s, AV_LOG_ERROR, "Input channel layout '%s' is not supported\n", buf);
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return AVERROR(EINVAL);
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}
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out_ch_layout = clean_layout(s, s->out_ch_layout);
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if(!sane_layout(out_ch_layout)){
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av_get_channel_layout_string(buf, sizeof(buf), -1, s->out_ch_layout);
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av_log(s, AV_LOG_ERROR, "Output channel layout '%s' is not supported\n", buf);
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return AVERROR(EINVAL);
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}
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memset(s->matrix, 0, sizeof(s->matrix));
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for(i=0; i<64; i++){
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if(in_ch_layout & out_ch_layout & (1LL<<i))
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matrix[i][i]= 1.0;
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}
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unaccounted= in_ch_layout & ~out_ch_layout;
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//FIXME implement dolby surround
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//FIXME implement full ac3
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if(unaccounted & AV_CH_FRONT_CENTER){
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if((out_ch_layout & AV_CH_LAYOUT_STEREO) == AV_CH_LAYOUT_STEREO){
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if(in_ch_layout & AV_CH_LAYOUT_STEREO) {
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matrix[ FRONT_LEFT][FRONT_CENTER]+= s->clev;
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matrix[FRONT_RIGHT][FRONT_CENTER]+= s->clev;
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} else {
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matrix[ FRONT_LEFT][FRONT_CENTER]+= M_SQRT1_2;
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matrix[FRONT_RIGHT][FRONT_CENTER]+= M_SQRT1_2;
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}
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}else
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av_assert0(0);
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}
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if(unaccounted & AV_CH_LAYOUT_STEREO){
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if(out_ch_layout & AV_CH_FRONT_CENTER){
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matrix[FRONT_CENTER][ FRONT_LEFT]+= M_SQRT1_2;
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matrix[FRONT_CENTER][FRONT_RIGHT]+= M_SQRT1_2;
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if(in_ch_layout & AV_CH_FRONT_CENTER)
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matrix[FRONT_CENTER][ FRONT_CENTER] = s->clev*sqrt(2);
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}else
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av_assert0(0);
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}
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if(unaccounted & AV_CH_BACK_CENTER){
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if(out_ch_layout & AV_CH_BACK_LEFT){
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matrix[ BACK_LEFT][BACK_CENTER]+= M_SQRT1_2;
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matrix[BACK_RIGHT][BACK_CENTER]+= M_SQRT1_2;
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}else if(out_ch_layout & AV_CH_SIDE_LEFT){
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matrix[ SIDE_LEFT][BACK_CENTER]+= M_SQRT1_2;
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matrix[SIDE_RIGHT][BACK_CENTER]+= M_SQRT1_2;
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}else if(out_ch_layout & AV_CH_FRONT_LEFT){
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if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY ||
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matrix_encoding == AV_MATRIX_ENCODING_DPLII) {
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if (unaccounted & (AV_CH_BACK_LEFT | AV_CH_SIDE_LEFT)) {
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matrix[FRONT_LEFT ][BACK_CENTER] -= s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][BACK_CENTER] += s->slev * M_SQRT1_2;
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} else {
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matrix[FRONT_LEFT ][BACK_CENTER] -= s->slev;
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matrix[FRONT_RIGHT][BACK_CENTER] += s->slev;
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}
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} else {
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matrix[ FRONT_LEFT][BACK_CENTER]+= s->slev*M_SQRT1_2;
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matrix[FRONT_RIGHT][BACK_CENTER]+= s->slev*M_SQRT1_2;
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}
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}else if(out_ch_layout & AV_CH_FRONT_CENTER){
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matrix[ FRONT_CENTER][BACK_CENTER]+= s->slev*M_SQRT1_2;
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}else
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av_assert0(0);
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}
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if(unaccounted & AV_CH_BACK_LEFT){
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if(out_ch_layout & AV_CH_BACK_CENTER){
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matrix[BACK_CENTER][ BACK_LEFT]+= M_SQRT1_2;
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matrix[BACK_CENTER][BACK_RIGHT]+= M_SQRT1_2;
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}else if(out_ch_layout & AV_CH_SIDE_LEFT){
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if(in_ch_layout & AV_CH_SIDE_LEFT){
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matrix[ SIDE_LEFT][ BACK_LEFT]+= M_SQRT1_2;
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matrix[SIDE_RIGHT][BACK_RIGHT]+= M_SQRT1_2;
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}else{
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matrix[ SIDE_LEFT][ BACK_LEFT]+= 1.0;
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matrix[SIDE_RIGHT][BACK_RIGHT]+= 1.0;
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}
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}else if(out_ch_layout & AV_CH_FRONT_LEFT){
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if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) {
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matrix[FRONT_LEFT ][BACK_LEFT ] -= s->slev * M_SQRT1_2;
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matrix[FRONT_LEFT ][BACK_RIGHT] -= s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][BACK_LEFT ] += s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][BACK_RIGHT] += s->slev * M_SQRT1_2;
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} else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) {
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matrix[FRONT_LEFT ][BACK_LEFT ] -= s->slev * SQRT3_2;
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matrix[FRONT_LEFT ][BACK_RIGHT] -= s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][BACK_LEFT ] += s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][BACK_RIGHT] += s->slev * SQRT3_2;
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} else {
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matrix[ FRONT_LEFT][ BACK_LEFT] += s->slev;
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matrix[FRONT_RIGHT][BACK_RIGHT] += s->slev;
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}
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}else if(out_ch_layout & AV_CH_FRONT_CENTER){
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matrix[ FRONT_CENTER][BACK_LEFT ]+= s->slev*M_SQRT1_2;
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matrix[ FRONT_CENTER][BACK_RIGHT]+= s->slev*M_SQRT1_2;
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}else
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av_assert0(0);
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}
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if(unaccounted & AV_CH_SIDE_LEFT){
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if(out_ch_layout & AV_CH_BACK_LEFT){
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/* if back channels do not exist in the input, just copy side
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channels to back channels, otherwise mix side into back */
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if (in_ch_layout & AV_CH_BACK_LEFT) {
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matrix[BACK_LEFT ][SIDE_LEFT ] += M_SQRT1_2;
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matrix[BACK_RIGHT][SIDE_RIGHT] += M_SQRT1_2;
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} else {
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matrix[BACK_LEFT ][SIDE_LEFT ] += 1.0;
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matrix[BACK_RIGHT][SIDE_RIGHT] += 1.0;
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}
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}else if(out_ch_layout & AV_CH_BACK_CENTER){
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matrix[BACK_CENTER][ SIDE_LEFT]+= M_SQRT1_2;
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matrix[BACK_CENTER][SIDE_RIGHT]+= M_SQRT1_2;
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}else if(out_ch_layout & AV_CH_FRONT_LEFT){
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if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) {
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matrix[FRONT_LEFT ][SIDE_LEFT ] -= s->slev * M_SQRT1_2;
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matrix[FRONT_LEFT ][SIDE_RIGHT] -= s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][SIDE_LEFT ] += s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][SIDE_RIGHT] += s->slev * M_SQRT1_2;
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} else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) {
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matrix[FRONT_LEFT ][SIDE_LEFT ] -= s->slev * SQRT3_2;
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matrix[FRONT_LEFT ][SIDE_RIGHT] -= s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][SIDE_LEFT ] += s->slev * M_SQRT1_2;
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matrix[FRONT_RIGHT][SIDE_RIGHT] += s->slev * SQRT3_2;
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} else {
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matrix[ FRONT_LEFT][ SIDE_LEFT] += s->slev;
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matrix[FRONT_RIGHT][SIDE_RIGHT] += s->slev;
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}
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}else if(out_ch_layout & AV_CH_FRONT_CENTER){
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matrix[ FRONT_CENTER][SIDE_LEFT ]+= s->slev*M_SQRT1_2;
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matrix[ FRONT_CENTER][SIDE_RIGHT]+= s->slev*M_SQRT1_2;
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}else
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av_assert0(0);
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}
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if(unaccounted & AV_CH_FRONT_LEFT_OF_CENTER){
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if(out_ch_layout & AV_CH_FRONT_LEFT){
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matrix[ FRONT_LEFT][ FRONT_LEFT_OF_CENTER]+= 1.0;
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matrix[FRONT_RIGHT][FRONT_RIGHT_OF_CENTER]+= 1.0;
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}else if(out_ch_layout & AV_CH_FRONT_CENTER){
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matrix[ FRONT_CENTER][ FRONT_LEFT_OF_CENTER]+= M_SQRT1_2;
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matrix[ FRONT_CENTER][FRONT_RIGHT_OF_CENTER]+= M_SQRT1_2;
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}else
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av_assert0(0);
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}
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/* mix LFE into front left/right or center */
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if (unaccounted & AV_CH_LOW_FREQUENCY) {
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if (out_ch_layout & AV_CH_FRONT_CENTER) {
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matrix[FRONT_CENTER][LOW_FREQUENCY] += s->lfe_mix_level;
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} else if (out_ch_layout & AV_CH_FRONT_LEFT) {
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matrix[FRONT_LEFT ][LOW_FREQUENCY] += s->lfe_mix_level * M_SQRT1_2;
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matrix[FRONT_RIGHT][LOW_FREQUENCY] += s->lfe_mix_level * M_SQRT1_2;
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} else
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av_assert0(0);
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}
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for(out_i=i=0; i<64; i++){
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double sum=0;
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int in_i=0;
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for(j=0; j<64; j++){
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s->matrix[out_i][in_i]= matrix[i][j];
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if(matrix[i][j]){
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sum += fabs(matrix[i][j]);
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}
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if(in_ch_layout & (1ULL<<j))
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in_i++;
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}
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maxcoef= FFMAX(maxcoef, sum);
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if(out_ch_layout & (1ULL<<i))
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out_i++;
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}
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if(s->rematrix_volume < 0)
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maxcoef = -s->rematrix_volume;
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if(( av_get_packed_sample_fmt(s->out_sample_fmt) < AV_SAMPLE_FMT_FLT
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|| av_get_packed_sample_fmt(s->int_sample_fmt) < AV_SAMPLE_FMT_FLT) && maxcoef > 1.0){
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for(i=0; i<SWR_CH_MAX; i++)
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for(j=0; j<SWR_CH_MAX; j++){
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s->matrix[i][j] /= maxcoef;
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}
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}
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if(s->rematrix_volume > 0){
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for(i=0; i<SWR_CH_MAX; i++)
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for(j=0; j<SWR_CH_MAX; j++){
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s->matrix[i][j] *= s->rematrix_volume;
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}
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}
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for(i=0; i<av_get_channel_layout_nb_channels(out_ch_layout); i++){
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for(j=0; j<av_get_channel_layout_nb_channels(in_ch_layout); j++){
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av_log(NULL, AV_LOG_DEBUG, "%f ", s->matrix[i][j]);
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}
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av_log(NULL, AV_LOG_DEBUG, "\n");
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}
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return 0;
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}
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av_cold int swri_rematrix_init(SwrContext *s){
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int i, j;
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int nb_in = av_get_channel_layout_nb_channels(s->in_ch_layout);
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int nb_out = av_get_channel_layout_nb_channels(s->out_ch_layout);
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s->mix_any_f = NULL;
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if (!s->rematrix_custom) {
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int r = auto_matrix(s);
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if (r)
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return r;
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}
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if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
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s->native_matrix = av_mallocz(nb_in * nb_out * sizeof(int));
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s->native_one = av_mallocz(sizeof(int));
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for (i = 0; i < nb_out; i++)
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for (j = 0; j < nb_in; j++)
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((int*)s->native_matrix)[i * nb_in + j] = lrintf(s->matrix[i][j] * 32768);
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*((int*)s->native_one) = 32768;
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s->mix_1_1_f = (mix_1_1_func_type*)copy_s16;
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s->mix_2_1_f = (mix_2_1_func_type*)sum2_s16;
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s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s16(s);
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}else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
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s->native_matrix = av_mallocz(nb_in * nb_out * sizeof(float));
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s->native_one = av_mallocz(sizeof(float));
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for (i = 0; i < nb_out; i++)
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for (j = 0; j < nb_in; j++)
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((float*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
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*((float*)s->native_one) = 1.0;
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s->mix_1_1_f = (mix_1_1_func_type*)copy_float;
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s->mix_2_1_f = (mix_2_1_func_type*)sum2_float;
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s->mix_any_f = (mix_any_func_type*)get_mix_any_func_float(s);
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}else if(s->midbuf.fmt == AV_SAMPLE_FMT_DBLP){
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s->native_matrix = av_mallocz(nb_in * nb_out * sizeof(double));
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s->native_one = av_mallocz(sizeof(double));
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for (i = 0; i < nb_out; i++)
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for (j = 0; j < nb_in; j++)
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((double*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
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*((double*)s->native_one) = 1.0;
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s->mix_1_1_f = (mix_1_1_func_type*)copy_double;
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s->mix_2_1_f = (mix_2_1_func_type*)sum2_double;
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s->mix_any_f = (mix_any_func_type*)get_mix_any_func_double(s);
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}else
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av_assert0(0);
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//FIXME quantize for integeres
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for (i = 0; i < SWR_CH_MAX; i++) {
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int ch_in=0;
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for (j = 0; j < SWR_CH_MAX; j++) {
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s->matrix32[i][j]= lrintf(s->matrix[i][j] * 32768);
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|
if(s->matrix[i][j])
|
|
s->matrix_ch[i][++ch_in]= j;
|
|
}
|
|
s->matrix_ch[i][0]= ch_in;
|
|
}
|
|
|
|
if(HAVE_YASM && HAVE_MMX) swri_rematrix_init_x86(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
av_cold void swri_rematrix_free(SwrContext *s){
|
|
av_freep(&s->native_matrix);
|
|
av_freep(&s->native_one);
|
|
av_freep(&s->native_simd_matrix);
|
|
}
|
|
|
|
int swri_rematrix(SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy){
|
|
int out_i, in_i, i, j;
|
|
int len1 = 0;
|
|
int off = 0;
|
|
|
|
if(s->mix_any_f) {
|
|
s->mix_any_f(out->ch, (const uint8_t **)in->ch, s->native_matrix, len);
|
|
return 0;
|
|
}
|
|
|
|
if(s->mix_2_1_simd || s->mix_1_1_simd){
|
|
len1= len&~15;
|
|
off = len1 * out->bps;
|
|
}
|
|
|
|
av_assert0(out->ch_count == av_get_channel_layout_nb_channels(s->out_ch_layout));
|
|
av_assert0(in ->ch_count == av_get_channel_layout_nb_channels(s-> in_ch_layout));
|
|
|
|
for(out_i=0; out_i<out->ch_count; out_i++){
|
|
switch(s->matrix_ch[out_i][0]){
|
|
case 0:
|
|
if(mustcopy)
|
|
memset(out->ch[out_i], 0, len * av_get_bytes_per_sample(s->int_sample_fmt));
|
|
break;
|
|
case 1:
|
|
in_i= s->matrix_ch[out_i][1];
|
|
if(s->matrix[out_i][in_i]!=1.0){
|
|
if(s->mix_1_1_simd && len1)
|
|
s->mix_1_1_simd(out->ch[out_i] , in->ch[in_i] , s->native_simd_matrix, in->ch_count*out_i + in_i, len1);
|
|
if(len != len1)
|
|
s->mix_1_1_f (out->ch[out_i]+off, in->ch[in_i]+off, s->native_matrix, in->ch_count*out_i + in_i, len-len1);
|
|
}else if(mustcopy){
|
|
memcpy(out->ch[out_i], in->ch[in_i], len*out->bps);
|
|
}else{
|
|
out->ch[out_i]= in->ch[in_i];
|
|
}
|
|
break;
|
|
case 2: {
|
|
int in_i1 = s->matrix_ch[out_i][1];
|
|
int in_i2 = s->matrix_ch[out_i][2];
|
|
if(s->mix_2_1_simd && len1)
|
|
s->mix_2_1_simd(out->ch[out_i] , in->ch[in_i1] , in->ch[in_i2] , s->native_simd_matrix, in->ch_count*out_i + in_i1, in->ch_count*out_i + in_i2, len1);
|
|
else
|
|
s->mix_2_1_f (out->ch[out_i] , in->ch[in_i1] , in->ch[in_i2] , s->native_matrix, in->ch_count*out_i + in_i1, in->ch_count*out_i + in_i2, len1);
|
|
if(len != len1)
|
|
s->mix_2_1_f (out->ch[out_i]+off, in->ch[in_i1]+off, in->ch[in_i2]+off, s->native_matrix, in->ch_count*out_i + in_i1, in->ch_count*out_i + in_i2, len-len1);
|
|
break;}
|
|
default:
|
|
if(s->int_sample_fmt == AV_SAMPLE_FMT_FLTP){
|
|
for(i=0; i<len; i++){
|
|
float v=0;
|
|
for(j=0; j<s->matrix_ch[out_i][0]; j++){
|
|
in_i= s->matrix_ch[out_i][1+j];
|
|
v+= ((float*)in->ch[in_i])[i] * s->matrix[out_i][in_i];
|
|
}
|
|
((float*)out->ch[out_i])[i]= v;
|
|
}
|
|
}else if(s->int_sample_fmt == AV_SAMPLE_FMT_DBLP){
|
|
for(i=0; i<len; i++){
|
|
double v=0;
|
|
for(j=0; j<s->matrix_ch[out_i][0]; j++){
|
|
in_i= s->matrix_ch[out_i][1+j];
|
|
v+= ((double*)in->ch[in_i])[i] * s->matrix[out_i][in_i];
|
|
}
|
|
((double*)out->ch[out_i])[i]= v;
|
|
}
|
|
}else{
|
|
for(i=0; i<len; i++){
|
|
int v=0;
|
|
for(j=0; j<s->matrix_ch[out_i][0]; j++){
|
|
in_i= s->matrix_ch[out_i][1+j];
|
|
v+= ((int16_t*)in->ch[in_i])[i] * s->matrix32[out_i][in_i];
|
|
}
|
|
((int16_t*)out->ch[out_i])[i]= (v + 16384)>>15;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|