| /* | |
| * Copyright (C) 2011-2012 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 "swresample_internal.h" | |
| #include "libavutil/avassert.h" | |
| #include "libavutil/channel_layout.h" | |
| #define TEMPLATE_REMATRIX_FLT | |
| #include "rematrix_template.c" | |
| #undef TEMPLATE_REMATRIX_FLT | |
| #define TEMPLATE_REMATRIX_DBL | |
| #include "rematrix_template.c" | |
| #undef TEMPLATE_REMATRIX_DBL | |
| #define TEMPLATE_REMATRIX_S16 | |
| #include "rematrix_template.c" | |
| #define TEMPLATE_CLIP | |
| #include "rematrix_template.c" | |
| #undef TEMPLATE_CLIP | |
| #undef TEMPLATE_REMATRIX_S16 | |
| #define TEMPLATE_REMATRIX_S32 | |
| #include "rematrix_template.c" | |
| #undef TEMPLATE_REMATRIX_S32 | |
| #define FRONT_LEFT 0 | |
| #define FRONT_RIGHT 1 | |
| #define FRONT_CENTER 2 | |
| #define LOW_FREQUENCY 3 | |
| #define BACK_LEFT 4 | |
| #define BACK_RIGHT 5 | |
| #define FRONT_LEFT_OF_CENTER 6 | |
| #define FRONT_RIGHT_OF_CENTER 7 | |
| #define BACK_CENTER 8 | |
| #define SIDE_LEFT 9 | |
| #define SIDE_RIGHT 10 | |
| #define TOP_CENTER 11 | |
| #define TOP_FRONT_LEFT 12 | |
| #define TOP_FRONT_CENTER 13 | |
| #define TOP_FRONT_RIGHT 14 | |
| #define TOP_BACK_LEFT 15 | |
| #define TOP_BACK_CENTER 16 | |
| #define TOP_BACK_RIGHT 17 | |
| #define NUM_NAMED_CHANNELS 18 | |
| int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride) | |
| { | |
| int nb_in, nb_out, in, out; | |
| if (!s || s->in_convert) // s needs to be allocated but not initialized | |
| return AVERROR(EINVAL); | |
| memset(s->matrix, 0, sizeof(s->matrix)); | |
| memset(s->matrix_flt, 0, sizeof(s->matrix_flt)); | |
| nb_in = s->user_in_chlayout.nb_channels; | |
| nb_out = s->user_out_chlayout.nb_channels; | |
| for (out = 0; out < nb_out; out++) { | |
| for (in = 0; in < nb_in; in++) | |
| s->matrix_flt[out][in] = s->matrix[out][in] = matrix[in]; | |
| matrix += stride; | |
| } | |
| s->rematrix_custom = 1; | |
| return 0; | |
| } | |
| static int even(int64_t layout){ | |
| if(!layout) return 1; | |
| if(layout&(layout-1)) return 1; | |
| return 0; | |
| } | |
| static int clean_layout(AVChannelLayout *out, const AVChannelLayout *in, void *s) | |
| { | |
| int ret = 0; | |
| if (av_channel_layout_index_from_channel(in, AV_CHAN_FRONT_CENTER) < 0 && in->nb_channels == 1) { | |
| char buf[128]; | |
| av_channel_layout_describe(in, buf, sizeof(buf)); | |
| av_log(s, AV_LOG_VERBOSE, "Treating %s as mono\n", buf); | |
| *out = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| } else | |
| ret = av_channel_layout_copy(out, in); | |
| return ret; | |
| } | |
| static int sane_layout(AVChannelLayout *ch_layout) { | |
| if (ch_layout->order != AV_CHANNEL_ORDER_NATIVE) | |
| return 0; | |
| if(!av_channel_layout_subset(ch_layout, AV_CH_LAYOUT_SURROUND)) // at least 1 front speaker | |
| return 0; | |
| if(!even(av_channel_layout_subset(ch_layout, (AV_CH_FRONT_LEFT | AV_CH_FRONT_RIGHT)))) // no asymetric front | |
| return 0; | |
| if(!even(av_channel_layout_subset(ch_layout, (AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT)))) // no asymetric side | |
| return 0; | |
| if(!even(av_channel_layout_subset(ch_layout, (AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT)))) | |
| return 0; | |
| if(!even(av_channel_layout_subset(ch_layout, (AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER)))) | |
| return 0; | |
| if(!even(av_channel_layout_subset(ch_layout, (AV_CH_TOP_FRONT_LEFT | AV_CH_TOP_FRONT_RIGHT)))) | |
| return 0; | |
| if(ch_layout->nb_channels >= SWR_CH_MAX) | |
| return 0; | |
| return 1; | |
| } | |
| av_cold int swr_build_matrix2(const AVChannelLayout *in_layout, const AVChannelLayout *out_layout, | |
| double center_mix_level, double surround_mix_level, | |
| double lfe_mix_level, double maxval, | |
| double rematrix_volume, double *matrix_param, | |
| ptrdiff_t stride, enum AVMatrixEncoding matrix_encoding, void *log_context) | |
| { | |
| int i, j, out_i, ret; | |
| AVChannelLayout in_ch_layout = { 0 }, out_ch_layout = { 0 }; | |
| double matrix[NUM_NAMED_CHANNELS][NUM_NAMED_CHANNELS]={{0}}; | |
| int64_t unaccounted; | |
| double maxcoef=0; | |
| char buf[128]; | |
| ret = clean_layout(&in_ch_layout, in_layout, log_context); | |
| ret |= clean_layout(&out_ch_layout, out_layout, log_context); | |
| if (ret < 0) | |
| goto fail; | |
| if( !av_channel_layout_compare(&out_ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO_DOWNMIX) | |
| && !av_channel_layout_subset(&in_ch_layout, AV_CH_LAYOUT_STEREO_DOWNMIX) | |
| ) { | |
| av_channel_layout_uninit(&out_ch_layout); | |
| out_ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO; | |
| } | |
| if( !av_channel_layout_compare(&in_ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO_DOWNMIX) | |
| && !av_channel_layout_subset(&out_ch_layout, AV_CH_LAYOUT_STEREO_DOWNMIX) | |
| ) { | |
| av_channel_layout_uninit(&in_ch_layout); | |
| in_ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO; | |
| } | |
| if (!av_channel_layout_compare(&in_ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_22POINT2) && | |
| av_channel_layout_compare(&out_ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_22POINT2)) { | |
| av_channel_layout_from_mask(&in_ch_layout, (AV_CH_LAYOUT_7POINT1_WIDE_BACK|AV_CH_BACK_CENTER)); | |
| av_channel_layout_describe(&in_ch_layout, buf, sizeof(buf)); | |
| av_log(log_context, AV_LOG_WARNING, | |
| "Full-on remixing from 22.2 has not yet been implemented! " | |
| "Processing the input as '%s'\n", | |
| buf); | |
| } | |
| if(!av_channel_layout_check(&in_ch_layout)) { | |
| av_log(log_context, AV_LOG_ERROR, "Input channel layout is invalid\n"); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| if(!sane_layout(&in_ch_layout)) { | |
| av_channel_layout_describe(&in_ch_layout, buf, sizeof(buf)); | |
| av_log(log_context, AV_LOG_ERROR, "Input channel layout '%s' is not supported\n", buf); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| if(!av_channel_layout_check(&out_ch_layout)) { | |
| av_log(log_context, AV_LOG_ERROR, "Output channel layout is invalid\n"); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| if(!sane_layout(&out_ch_layout)) { | |
| av_channel_layout_describe(&out_ch_layout, buf, sizeof(buf)); | |
| av_log(log_context, AV_LOG_ERROR, "Output channel layout '%s' is not supported\n", buf); | |
| ret = AVERROR(EINVAL); | |
| goto fail; | |
| } | |
| for(i=0; i<FF_ARRAY_ELEMS(matrix); i++){ | |
| if( av_channel_layout_index_from_channel(&in_ch_layout, i) >= 0 | |
| && av_channel_layout_index_from_channel(&out_ch_layout, i) >= 0) | |
| matrix[i][i]= 1.0; | |
| } | |
| unaccounted = in_ch_layout.u.mask & ~out_ch_layout.u.mask; | |
| //FIXME implement dolby surround | |
| //FIXME implement full ac3 | |
| if(unaccounted & AV_CH_FRONT_CENTER){ | |
| if (av_channel_layout_subset(&out_ch_layout, AV_CH_LAYOUT_STEREO) == AV_CH_LAYOUT_STEREO) { | |
| if (av_channel_layout_subset(&in_ch_layout, AV_CH_LAYOUT_STEREO)) { | |
| matrix[ FRONT_LEFT][FRONT_CENTER]+= center_mix_level; | |
| matrix[FRONT_RIGHT][FRONT_CENTER]+= center_mix_level; | |
| } else { | |
| matrix[ FRONT_LEFT][FRONT_CENTER]+= M_SQRT1_2; | |
| matrix[FRONT_RIGHT][FRONT_CENTER]+= M_SQRT1_2; | |
| } | |
| }else | |
| av_assert0(0); | |
| } | |
| if(unaccounted & AV_CH_LAYOUT_STEREO){ | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[FRONT_CENTER][ FRONT_LEFT]+= M_SQRT1_2; | |
| matrix[FRONT_CENTER][FRONT_RIGHT]+= M_SQRT1_2; | |
| if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) | |
| matrix[FRONT_CENTER][ FRONT_CENTER] = center_mix_level*sqrt(2); | |
| }else | |
| av_assert0(0); | |
| } | |
| if(unaccounted & AV_CH_BACK_CENTER){ | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_BACK_LEFT) >= 0) { | |
| matrix[ BACK_LEFT][BACK_CENTER]+= M_SQRT1_2; | |
| matrix[BACK_RIGHT][BACK_CENTER]+= M_SQRT1_2; | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_SIDE_LEFT) >= 0) { | |
| matrix[ SIDE_LEFT][BACK_CENTER]+= M_SQRT1_2; | |
| matrix[SIDE_RIGHT][BACK_CENTER]+= M_SQRT1_2; | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY || | |
| matrix_encoding == AV_MATRIX_ENCODING_DPLII) { | |
| if (unaccounted & (AV_CH_BACK_LEFT | AV_CH_SIDE_LEFT)) { | |
| matrix[FRONT_LEFT ][BACK_CENTER] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][BACK_CENTER] += surround_mix_level * M_SQRT1_2; | |
| } else { | |
| matrix[FRONT_LEFT ][BACK_CENTER] -= surround_mix_level; | |
| matrix[FRONT_RIGHT][BACK_CENTER] += surround_mix_level; | |
| } | |
| } else { | |
| matrix[ FRONT_LEFT][BACK_CENTER]+= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][BACK_CENTER]+= surround_mix_level * M_SQRT1_2; | |
| } | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[ FRONT_CENTER][BACK_CENTER]+= surround_mix_level * M_SQRT1_2; | |
| }else | |
| av_assert0(0); | |
| } | |
| if(unaccounted & AV_CH_BACK_LEFT){ | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_BACK_CENTER) >= 0) { | |
| matrix[BACK_CENTER][ BACK_LEFT]+= M_SQRT1_2; | |
| matrix[BACK_CENTER][BACK_RIGHT]+= M_SQRT1_2; | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_SIDE_LEFT) >= 0) { | |
| if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_SIDE_LEFT) >= 0) { | |
| matrix[ SIDE_LEFT][ BACK_LEFT]+= M_SQRT1_2; | |
| matrix[SIDE_RIGHT][BACK_RIGHT]+= M_SQRT1_2; | |
| }else{ | |
| matrix[ SIDE_LEFT][ BACK_LEFT]+= 1.0; | |
| matrix[SIDE_RIGHT][BACK_RIGHT]+= 1.0; | |
| } | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) { | |
| matrix[FRONT_LEFT ][BACK_LEFT ] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_LEFT ][BACK_RIGHT] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][BACK_LEFT ] += surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][BACK_RIGHT] += surround_mix_level * M_SQRT1_2; | |
| } else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) { | |
| matrix[FRONT_LEFT ][BACK_LEFT ] -= surround_mix_level * SQRT3_2; | |
| matrix[FRONT_LEFT ][BACK_RIGHT] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][BACK_LEFT ] += surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][BACK_RIGHT] += surround_mix_level * SQRT3_2; | |
| } else { | |
| matrix[ FRONT_LEFT][ BACK_LEFT] += surround_mix_level; | |
| matrix[FRONT_RIGHT][BACK_RIGHT] += surround_mix_level; | |
| } | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[ FRONT_CENTER][BACK_LEFT ]+= surround_mix_level*M_SQRT1_2; | |
| matrix[ FRONT_CENTER][BACK_RIGHT]+= surround_mix_level*M_SQRT1_2; | |
| }else | |
| av_assert0(0); | |
| } | |
| if(unaccounted & AV_CH_SIDE_LEFT){ | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_BACK_LEFT) >= 0) { | |
| /* if back channels do not exist in the input, just copy side | |
| channels to back channels, otherwise mix side into back */ | |
| if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_BACK_LEFT) >= 0) { | |
| matrix[BACK_LEFT ][SIDE_LEFT ] += M_SQRT1_2; | |
| matrix[BACK_RIGHT][SIDE_RIGHT] += M_SQRT1_2; | |
| } else { | |
| matrix[BACK_LEFT ][SIDE_LEFT ] += 1.0; | |
| matrix[BACK_RIGHT][SIDE_RIGHT] += 1.0; | |
| } | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_BACK_CENTER) >= 0) { | |
| matrix[BACK_CENTER][ SIDE_LEFT]+= M_SQRT1_2; | |
| matrix[BACK_CENTER][SIDE_RIGHT]+= M_SQRT1_2; | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) { | |
| matrix[FRONT_LEFT ][SIDE_LEFT ] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_LEFT ][SIDE_RIGHT] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][SIDE_LEFT ] += surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][SIDE_RIGHT] += surround_mix_level * M_SQRT1_2; | |
| } else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) { | |
| matrix[FRONT_LEFT ][SIDE_LEFT ] -= surround_mix_level * SQRT3_2; | |
| matrix[FRONT_LEFT ][SIDE_RIGHT] -= surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][SIDE_LEFT ] += surround_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][SIDE_RIGHT] += surround_mix_level * SQRT3_2; | |
| } else { | |
| matrix[ FRONT_LEFT][ SIDE_LEFT] += surround_mix_level; | |
| matrix[FRONT_RIGHT][SIDE_RIGHT] += surround_mix_level; | |
| } | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[ FRONT_CENTER][SIDE_LEFT ]+= surround_mix_level * M_SQRT1_2; | |
| matrix[ FRONT_CENTER][SIDE_RIGHT]+= surround_mix_level * M_SQRT1_2; | |
| }else | |
| av_assert0(0); | |
| } | |
| if(unaccounted & AV_CH_FRONT_LEFT_OF_CENTER){ | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| matrix[ FRONT_LEFT][ FRONT_LEFT_OF_CENTER]+= 1.0; | |
| matrix[FRONT_RIGHT][FRONT_RIGHT_OF_CENTER]+= 1.0; | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[ FRONT_CENTER][ FRONT_LEFT_OF_CENTER]+= M_SQRT1_2; | |
| matrix[ FRONT_CENTER][FRONT_RIGHT_OF_CENTER]+= M_SQRT1_2; | |
| }else | |
| av_assert0(0); | |
| } | |
| if (unaccounted & AV_CH_TOP_FRONT_LEFT) { | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_TOP_FRONT_CENTER) >= 0) { | |
| matrix[TOP_FRONT_CENTER][TOP_FRONT_LEFT ] += M_SQRT1_2; | |
| matrix[TOP_FRONT_CENTER][TOP_FRONT_RIGHT] += M_SQRT1_2; | |
| if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_TOP_FRONT_CENTER) >= 0) | |
| matrix[TOP_FRONT_CENTER][TOP_FRONT_CENTER] = center_mix_level * sqrt(2); | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| if (av_channel_layout_index_from_channel(&in_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| matrix[FRONT_LEFT ][TOP_FRONT_LEFT ] += M_SQRT1_2; | |
| matrix[FRONT_RIGHT][TOP_FRONT_RIGHT] += M_SQRT1_2; | |
| } else { | |
| matrix[FRONT_LEFT ][TOP_FRONT_LEFT ] += 1.0; | |
| matrix[FRONT_RIGHT][TOP_FRONT_RIGHT] += 1.0; | |
| } | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[FRONT_CENTER][TOP_FRONT_LEFT ] += M_SQRT1_2; | |
| matrix[FRONT_CENTER][TOP_FRONT_RIGHT] += M_SQRT1_2; | |
| } else | |
| av_assert0(0); | |
| } | |
| /* mix LFE into front left/right or center */ | |
| if (unaccounted & AV_CH_LOW_FREQUENCY) { | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_CENTER) >= 0) { | |
| matrix[FRONT_CENTER][LOW_FREQUENCY] += lfe_mix_level; | |
| } else if (av_channel_layout_index_from_channel(&out_ch_layout, AV_CHAN_FRONT_LEFT) >= 0) { | |
| matrix[FRONT_LEFT ][LOW_FREQUENCY] += lfe_mix_level * M_SQRT1_2; | |
| matrix[FRONT_RIGHT][LOW_FREQUENCY] += lfe_mix_level * M_SQRT1_2; | |
| } else | |
| av_assert0(0); | |
| } | |
| for(out_i=i=0; i<64; i++){ | |
| double sum=0; | |
| int in_i=0; | |
| if (av_channel_layout_index_from_channel(&out_ch_layout, i) < 0) | |
| continue; | |
| for(j=0; j<64; j++){ | |
| if (av_channel_layout_index_from_channel(&in_ch_layout, j) < 0) | |
| continue; | |
| if (i < FF_ARRAY_ELEMS(matrix) && j < FF_ARRAY_ELEMS(matrix[0])) | |
| matrix_param[stride*out_i + in_i] = matrix[i][j]; | |
| else | |
| matrix_param[stride*out_i + in_i] = i == j && | |
| ( av_channel_layout_index_from_channel(&in_ch_layout, i) >= 0 | |
| && av_channel_layout_index_from_channel(&out_ch_layout, i) >= 0); | |
| sum += fabs(matrix_param[stride*out_i + in_i]); | |
| in_i++; | |
| } | |
| maxcoef= FFMAX(maxcoef, sum); | |
| out_i++; | |
| } | |
| if(rematrix_volume < 0) | |
| maxcoef = -rematrix_volume; | |
| if(maxcoef > maxval || rematrix_volume < 0){ | |
| maxcoef /= maxval; | |
| for(i=0; i<SWR_CH_MAX; i++) | |
| for(j=0; j<SWR_CH_MAX; j++){ | |
| matrix_param[stride*i + j] /= maxcoef; | |
| } | |
| } | |
| if(rematrix_volume > 0){ | |
| for(i=0; i<SWR_CH_MAX; i++) | |
| for(j=0; j<SWR_CH_MAX; j++){ | |
| matrix_param[stride*i + j] *= rematrix_volume; | |
| } | |
| } | |
| av_log(log_context, AV_LOG_DEBUG, "Matrix coefficients:\n"); | |
| for (i = 0; i < out_ch_layout.nb_channels; i++){ | |
| av_channel_name(buf, sizeof(buf), av_channel_layout_channel_from_index(&out_ch_layout, i)); | |
| av_log(log_context, AV_LOG_DEBUG, "%s: ", buf); | |
| for (j = 0; j < in_ch_layout.nb_channels; j++){ | |
| av_channel_name(buf, sizeof(buf), av_channel_layout_channel_from_index(&in_ch_layout, j)); | |
| av_log(log_context, AV_LOG_DEBUG, "%s:%f ", buf, matrix_param[stride*i + j]); | |
| } | |
| av_log(log_context, AV_LOG_DEBUG, "\n"); | |
| } | |
| ret = 0; | |
| fail: | |
| av_channel_layout_uninit(&in_ch_layout); | |
| av_channel_layout_uninit(&out_ch_layout); | |
| return ret; | |
| } | |
| av_cold static int auto_matrix(SwrContext *s) | |
| { | |
| double maxval; | |
| int ret; | |
| if (s->rematrix_maxval > 0) { | |
| maxval = s->rematrix_maxval; | |
| } else if ( av_get_packed_sample_fmt(s->out_sample_fmt) < AV_SAMPLE_FMT_FLT | |
| || av_get_packed_sample_fmt(s->int_sample_fmt) < AV_SAMPLE_FMT_FLT) { | |
| maxval = 1.0; | |
| } else | |
| maxval = INT_MAX; | |
| memset(s->matrix, 0, sizeof(s->matrix)); | |
| ret = swr_build_matrix2(&s->in_ch_layout, &s->out_ch_layout, | |
| s->clev, s->slev, s->lfe_mix_level, | |
| maxval, s->rematrix_volume, (double*)s->matrix, | |
| s->matrix[1] - s->matrix[0], s->matrix_encoding, s); | |
| if (ret >= 0 && s->int_sample_fmt == AV_SAMPLE_FMT_FLTP) { | |
| int i, j; | |
| for (i = 0; i < FF_ARRAY_ELEMS(s->matrix[0]); i++) | |
| for (j = 0; j < FF_ARRAY_ELEMS(s->matrix[0]); j++) | |
| s->matrix_flt[i][j] = s->matrix[i][j]; | |
| } | |
| return ret; | |
| } | |
| av_cold int swri_rematrix_init(SwrContext *s){ | |
| int i, j; | |
| int nb_in = s->used_ch_layout.nb_channels; | |
| int nb_out = s->out.ch_count; | |
| s->mix_any_f = NULL; | |
| if (!s->rematrix_custom) { | |
| int r = auto_matrix(s); | |
| if (r) | |
| return r; | |
| } | |
| if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){ | |
| int maxsum = 0; | |
| s->native_matrix = av_calloc(nb_in * nb_out, sizeof(int)); | |
| s->native_one = av_mallocz(sizeof(int)); | |
| if (!s->native_matrix || !s->native_one) | |
| return AVERROR(ENOMEM); | |
| for (i = 0; i < nb_out; i++) { | |
| double rem = 0; | |
| int sum = 0; | |
| for (j = 0; j < nb_in; j++) { | |
| double target = s->matrix[i][j] * 32768 + rem; | |
| ((int*)s->native_matrix)[i * nb_in + j] = lrintf(target); | |
| rem += target - ((int*)s->native_matrix)[i * nb_in + j]; | |
| sum += FFABS(((int*)s->native_matrix)[i * nb_in + j]); | |
| } | |
| maxsum = FFMAX(maxsum, sum); | |
| } | |
| *((int*)s->native_one) = 32768; | |
| if (maxsum <= 32768) { | |
| s->mix_1_1_f = (mix_1_1_func_type*)copy_s16; | |
| s->mix_2_1_f = (mix_2_1_func_type*)sum2_s16; | |
| s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s16(s); | |
| } else { | |
| s->mix_1_1_f = (mix_1_1_func_type*)copy_clip_s16; | |
| s->mix_2_1_f = (mix_2_1_func_type*)sum2_clip_s16; | |
| s->mix_any_f = (mix_any_func_type*)get_mix_any_func_clip_s16(s); | |
| } | |
| }else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){ | |
| s->native_matrix = av_calloc(nb_in * nb_out, sizeof(float)); | |
| s->native_one = av_mallocz(sizeof(float)); | |
| if (!s->native_matrix || !s->native_one) | |
| return AVERROR(ENOMEM); | |
| for (i = 0; i < nb_out; i++) | |
| for (j = 0; j < nb_in; j++) | |
| ((float*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j]; | |
| *((float*)s->native_one) = 1.0; | |
| s->mix_1_1_f = (mix_1_1_func_type*)copy_float; | |
| s->mix_2_1_f = (mix_2_1_func_type*)sum2_float; | |
| s->mix_any_f = (mix_any_func_type*)get_mix_any_func_float(s); | |
| }else if(s->midbuf.fmt == AV_SAMPLE_FMT_DBLP){ | |
| s->native_matrix = av_calloc(nb_in * nb_out, sizeof(double)); | |
| s->native_one = av_mallocz(sizeof(double)); | |
| if (!s->native_matrix || !s->native_one) | |
| return AVERROR(ENOMEM); | |
| for (i = 0; i < nb_out; i++) | |
| for (j = 0; j < nb_in; j++) | |
| ((double*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j]; | |
| *((double*)s->native_one) = 1.0; | |
| s->mix_1_1_f = (mix_1_1_func_type*)copy_double; | |
| s->mix_2_1_f = (mix_2_1_func_type*)sum2_double; | |
| s->mix_any_f = (mix_any_func_type*)get_mix_any_func_double(s); | |
| }else if(s->midbuf.fmt == AV_SAMPLE_FMT_S32P){ | |
| s->native_one = av_mallocz(sizeof(int)); | |
| if (!s->native_one) | |
| return AVERROR(ENOMEM); | |
| s->native_matrix = av_calloc(nb_in * nb_out, sizeof(int)); | |
| if (!s->native_matrix) { | |
| av_freep(&s->native_one); | |
| return AVERROR(ENOMEM); | |
| } | |
| for (i = 0; i < nb_out; i++) { | |
| double rem = 0; | |
| for (j = 0; j < nb_in; j++) { | |
| double target = s->matrix[i][j] * 32768 + rem; | |
| ((int*)s->native_matrix)[i * nb_in + j] = lrintf(target); | |
| rem += target - ((int*)s->native_matrix)[i * nb_in + j]; | |
| } | |
| } | |
| *((int*)s->native_one) = 32768; | |
| s->mix_1_1_f = (mix_1_1_func_type*)copy_s32; | |
| s->mix_2_1_f = (mix_2_1_func_type*)sum2_s32; | |
| s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s32(s); | |
| }else | |
| av_assert0(0); | |
| //FIXME quantize for integeres | |
| for (i = 0; i < SWR_CH_MAX; i++) { | |
| int ch_in=0; | |
| for (j = 0; j < SWR_CH_MAX; j++) { | |
| s->matrix32[i][j]= lrintf(s->matrix[i][j] * 32768); | |
| if(s->matrix[i][j]) | |
| s->matrix_ch[i][++ch_in]= j; | |
| } | |
| s->matrix_ch[i][0]= ch_in; | |
| } | |
| #if ARCH_X86 && HAVE_X86ASM && HAVE_MMX | |
| return swri_rematrix_init_x86(s); | |
| #endif | |
| 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); | |
| av_freep(&s->native_simd_one); | |
| } | |
| 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(s->out_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC || out->ch_count == s->out_ch_layout.nb_channels); | |
| av_assert0(s-> in_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC || in ->ch_count == s->in_ch_layout.nb_channels); | |
| 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_flt[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; | |
| } |