mirror of
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486 lines
13 KiB
C
486 lines
13 KiB
C
/* Spa
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <spa/utils/defs.h>
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#define VOLUME_MIN 0.0f
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#define VOLUME_NORM 1.0f
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#if defined (__SSE__)
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#include "channelmix-ops-sse.c"
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#endif
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static void
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channelmix_copy(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples = n_bytes / sizeof(float);
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float **d = (float **)dst;
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float **s = (float **)src;
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (i = 0; i < n_dst; i++)
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memcpy(d[i], s[i], n_bytes);
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}
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else {
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for (i = 0; i < n_dst; i++)
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for (n = 0; n < n_samples; n++)
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d[i][n] = s[i][n] * v;
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}
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}
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#define _M(ch) (1UL << SPA_AUDIO_CHANNEL_ ## ch)
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static void
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channelmix_f32_n_m(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, j, n, n_samples = n_bytes / sizeof(float);
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float **d = (float **) dst;
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float **s = (float **) src;
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float *m = matrix;
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for (n = 0; n < n_samples; n++) {
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for (i = 0; i < n_dst; i++) {
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float sum = 0.0f;
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for (j = 0; j < n_src; j++)
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sum += s[j][n] * m[i * n_src + j] * v;
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d[i][n] = sum;
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}
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}
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}
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#define MASK_MONO _M(FC)|_M(MONO)|_M(UNKNOWN)
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#define MASK_STEREO _M(FL)|_M(FR)|_M(UNKNOWN)
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static void
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channelmix_f32_1_2(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int n, n_samples = n_bytes / sizeof(float);
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float **d = (float **)dst;
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float **s = (float **)src;
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if (v <= VOLUME_MIN) {
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memset(d[0], 0, n_bytes);
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memset(d[1], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++)
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d[0][n] = d[1][n] = s[0][n];
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}
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else {
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for (n = 0; n < n_samples; n++)
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d[0][n] = d[1][n] = s[0][n] * v;
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}
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}
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static void
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channelmix_f32_2_1(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int n, n_samples = n_bytes / sizeof(float);
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float **d = (float **)dst;
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float **s = (float **)src;
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if (v <= VOLUME_MIN) {
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memset(d[0], 0, n_bytes);
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}
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else {
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const float f = v * 0.5f;
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for (n = 0; n < n_samples; n++)
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d[0][n] = (s[0][n] + s[1][n]) * f;
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}
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}
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#define MASK_QUAD _M(FL)|_M(FR)|_M(RL)|_M(RR)|_M(UNKNOWN)
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static void
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channelmix_f32_2_4(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples = n_bytes / sizeof(float);
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float **d = (float **)dst;
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float **s = (float **)src;
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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d[0][n] = d[2][n] = s[0][n];
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d[1][n] = d[3][n] = s[1][n];
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}
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}
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else {
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for (n = 0; n < n_samples; n++) {
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d[0][n] = d[2][n] = s[0][n] * v;
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d[1][n] = d[3][n] = s[1][n] * v;
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}
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}
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}
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#define MASK_3_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)
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static void
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channelmix_f32_2_3p1(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples = n_bytes / sizeof(float);
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float **d = (float **)dst;
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float **s = (float **)src;
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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d[0][n] = s[0][n];
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d[1][n] = s[1][n];
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d[2][n] = (s[0][n] + s[1][n]) * 0.5f;
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d[3][n] = 0.0f;
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}
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}
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else {
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const float f = 0.5f * v;
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for (n = 0; n < n_samples; n++) {
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d[0][n] = s[0][n] * v;
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d[1][n] = s[1][n] * v;
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d[2][n] = (s[0][n] + s[1][n]) * f;
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d[3][n] = 0.0f;
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}
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}
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}
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#define MASK_5_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
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static void
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channelmix_f32_2_5p1(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples = n_bytes / sizeof(float);
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float **d = (float **)dst;
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float **s = (float **)src;
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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d[0][n] = d[4][n] = s[0][n];
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d[1][n] = d[5][n] = s[1][n];
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d[2][n] = (s[0][n] + s[1][n]) * 0.5f;
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d[3][n] = 0.0f;
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}
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}
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else {
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const float f = 0.5f * v;
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for (n = 0; n < n_samples; n++) {
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d[0][n] = d[4][n] = s[0][n] * v;
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d[1][n] = d[5][n] = s[1][n] * v;
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d[2][n] = (s[0][n] + s[1][n]) * f;
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d[3][n] = 0.0f;
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}
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}
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}
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/* FL+FR+FC+LFE+SL+SR -> FL+FR */
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static void
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channelmix_f32_5p1_2(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int n, n_samples = n_bytes / sizeof(float);
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float **d = (float **) dst;
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float **s = (float **) src;
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float *m = matrix;
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const float clev = m[2];
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const float llev = m[3];
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const float slev = m[4];
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if (v <= VOLUME_MIN) {
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memset(d[0], 0, n_bytes);
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memset(d[1], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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const float ctr = clev * s[2][n] + llev * s[3][n];
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d[0][n] = s[0][n] + ctr + (slev * s[4][n]);
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d[1][n] = s[1][n] + ctr + (slev * s[5][n]);
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}
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}
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else {
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for (n = 0; n < n_samples; n++) {
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const float ctr = clev * s[2][n] + llev * s[3][n];
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d[0][n] = (s[0][n] + ctr + (slev * s[4][n])) * v;
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d[1][n] = (s[1][n] + ctr + (slev * s[5][n])) * v;
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}
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}
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}
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/* FL+FR+FC+LFE+SL+SR -> FL+FR+FC+LFE*/
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static void
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channelmix_f32_5p1_3p1(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples;
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float **d = (float **) dst;
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float **s = (float **) src;
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n_samples = n_bytes / sizeof(float);
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else {
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const float f1 = 0.5f * v;
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for (n = 0; n < n_samples; n++) {
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d[0][n] = (s[0][n] + s[4][n]) * f1;
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d[1][n] = (s[1][n] + s[5][n]) * f1;
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d[2][n] = s[2][n] * v;
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d[3][n] = s[3][n] * v;
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}
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}
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}
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/* FL+FR+FC+LFE+SL+SR -> FL+FR+RL+RR*/
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static void
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channelmix_f32_5p1_4(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples;
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float **d = (float **) dst;
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float **s = (float **) src;
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float *m = matrix;
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const float clev = m[2];
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const float llev = m[3];
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n_samples = n_bytes / sizeof(float);
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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float ctr = s[2][n] * clev + s[3][n] * llev;
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d[0][n] = s[0][n] + ctr;
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d[1][n] = s[1][n] + ctr;
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d[2][n] = s[4][n];
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d[3][n] = s[5][n];
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}
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}
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else {
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for (n = 0; n < n_samples; n++) {
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float ctr = s[2][n] * clev + s[3][n] * llev;
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d[0][n] = (s[0][n] + ctr) * v;
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d[1][n] = (s[1][n] + ctr) * v;
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d[2][n] = s[4][n] * v;
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d[3][n] = s[5][n] * v;
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}
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}
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}
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#define MASK_7_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
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/* FL+FR+FC+LFE+SL+SR+RL+RR -> FL+FR */
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static void
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channelmix_f32_7p1_2(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int n, n_samples = n_bytes / sizeof(float);
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float **d = (float **) dst;
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float **s = (float **) src;
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float *m = matrix;
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const float clev = m[2];
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const float llev = m[3];
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const float slev = m[4];
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if (v <= VOLUME_MIN) {
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memset(d[0], 0, n_bytes);
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memset(d[1], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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const float ctr = clev * s[2][n] + llev * s[3][n];
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d[0][n] = s[0][n] + ctr + (slev * (s[4][n] + s[6][n]));
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d[1][n] = s[1][n] + ctr + (slev * (s[5][n] + s[7][n]));
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}
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}
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else {
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for (n = 0; n < n_samples; n++) {
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const float ctr = clev * s[2][n] + llev * s[3][n];
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d[0][n] = (s[0][n] + ctr + (slev * (s[4][n] + s[6][n]))) * v;
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d[1][n] = (s[1][n] + ctr + (slev * (s[5][n] + s[6][n]))) * v;
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}
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}
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}
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/* FL+FR+FC+LFE+SL+SR+RL+RR -> FL+FR+FC+LFE*/
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static void
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channelmix_f32_7p1_3p1(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples;
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float **d = (float **) dst;
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float **s = (float **) src;
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n_samples = n_bytes / sizeof(float);
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else {
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const float f1 = 0.5 * v;
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for (n = 0; n < n_samples; n++) {
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d[0][n] = s[0][n] + (s[4][n] + s[6][n]) * f1;
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d[1][n] = s[1][n] + (s[5][n] + s[7][n]) * f1;
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d[2][n] = s[2][n] * v;
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d[3][n] = s[3][n] * v;
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}
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}
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}
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/* FL+FR+FC+LFE+SL+SR+RL+RR -> FL+FR+RL+RR*/
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static void
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channelmix_f32_7p1_4(void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src], void *matrix, float v, int n_bytes)
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{
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int i, n, n_samples;
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float **d = (float **) dst;
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float **s = (float **) src;
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float *m = matrix;
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const float clev = m[2];
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const float llev = m[3];
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const float slev = m[4];
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n_samples = n_bytes / sizeof(float);
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if (v <= VOLUME_MIN) {
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for (i = 0; i < n_dst; i++)
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memset(d[i], 0, n_bytes);
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}
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else if (v == VOLUME_NORM) {
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for (n = 0; n < n_samples; n++) {
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float ctr = s[2][n] * clev + s[3][n] * llev;
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float sl = s[4][n] * slev;
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float sr = s[5][n] * slev;
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d[0][n] = s[0][n] + ctr + sl;
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d[1][n] = s[1][n] + ctr + sr;
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d[2][n] = s[6][n] + sl;
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d[3][n] = s[7][n] + sr;
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}
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}
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else {
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for (n = 0; n < n_samples; n++) {
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float ctr = s[2][n] * clev + s[3][n] * llev;
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float sl = s[4][n] * slev;
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float sr = s[5][n] * slev;
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d[0][n] = (s[0][n] + ctr + sl) * v;
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d[1][n] = (s[1][n] + ctr + sr) * v;
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d[2][n] = (s[6][n] + sl) * v;
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d[3][n] = (s[7][n] + sr) * v;
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}
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}
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}
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typedef void (*channelmix_func_t) (void *data, int n_dst, void *dst[n_dst],
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int n_src, const void *src[n_src],
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void *matrix, float v, int n_bytes);
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static const struct channelmix_info {
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uint32_t src_chan;
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uint64_t src_mask;
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uint32_t dst_chan;
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uint64_t dst_mask;
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channelmix_func_t func;
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#define FEATURE_SSE (1<<0)
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uint32_t features;
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} channelmix_table[] =
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{
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#if defined (__SSE2__)
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{ 2, MASK_MONO, 2, MASK_MONO, channelmix_copy_sse, FEATURE_SSE },
|
|
{ 2, MASK_STEREO, 2, MASK_STEREO, channelmix_copy_sse, FEATURE_SSE },
|
|
{ -2, 0, -2, 0, channelmix_copy_sse, FEATURE_SSE },
|
|
#endif
|
|
{ 2, MASK_MONO, 2, MASK_MONO, channelmix_copy, 0 },
|
|
{ 2, MASK_STEREO, 2, MASK_STEREO, channelmix_copy, 0 },
|
|
{ -2, 0, -2, 0, channelmix_copy, 0 },
|
|
|
|
{ 1, MASK_MONO, 2, MASK_STEREO, channelmix_f32_1_2, 0 },
|
|
{ 2, MASK_STEREO, 1, MASK_MONO, channelmix_f32_2_1, 0 },
|
|
#if defined (__SSE2__)
|
|
{ 2, MASK_STEREO, 4, MASK_QUAD, channelmix_f32_2_4_sse, FEATURE_SSE },
|
|
#endif
|
|
{ 2, MASK_STEREO, 4, MASK_QUAD, channelmix_f32_2_4, 0 },
|
|
{ 2, MASK_STEREO, 4, MASK_3_1, channelmix_f32_2_3p1, 0 },
|
|
{ 2, MASK_STEREO, 6, MASK_5_1, channelmix_f32_2_5p1, 0 },
|
|
#if defined (__SSE2__)
|
|
{ 6, MASK_5_1, 2, MASK_STEREO, channelmix_f32_5p1_2_sse, FEATURE_SSE },
|
|
#endif
|
|
{ 6, MASK_5_1, 2, MASK_STEREO, channelmix_f32_5p1_2, 0 },
|
|
#if defined (__SSE2__)
|
|
{ 6, MASK_5_1, 4, MASK_QUAD, channelmix_f32_5p1_4_sse, FEATURE_SSE },
|
|
#endif
|
|
{ 6, MASK_5_1, 4, MASK_QUAD, channelmix_f32_5p1_4, 0 },
|
|
{ 6, MASK_5_1, 4, MASK_3_1, channelmix_f32_5p1_3p1, 0 },
|
|
|
|
{ 8, MASK_7_1, 2, MASK_STEREO, channelmix_f32_7p1_2, 0 },
|
|
{ 8, MASK_7_1, 4, MASK_QUAD, channelmix_f32_7p1_4, 0 },
|
|
{ 8, MASK_7_1, 4, MASK_3_1, channelmix_f32_7p1_3p1, 0 },
|
|
|
|
{ -1, 0, -1, 0, channelmix_f32_n_m, 0 },
|
|
};
|
|
|
|
#define MATCH_CHAN(a,b) ((a) == -1 || (a) == (b))
|
|
#define MATCH_FEATURES(a,b) ((a) == 0 || ((a) & (b)) != 0)
|
|
#define MATCH_MASK(a,b) ((a) == 0 || ((a) & (b)) == (b))
|
|
|
|
static const struct channelmix_info *find_channelmix_info(uint32_t src_chan, uint64_t src_mask,
|
|
uint32_t dst_chan, uint64_t dst_mask, uint32_t features)
|
|
{
|
|
int i;
|
|
for (i = 0; i < SPA_N_ELEMENTS(channelmix_table); i++) {
|
|
if (!MATCH_FEATURES(channelmix_table[i].features, features))
|
|
continue;
|
|
|
|
if (src_chan == dst_chan && src_mask == dst_mask)
|
|
return &channelmix_table[i];
|
|
|
|
if (MATCH_CHAN(channelmix_table[i].src_chan, src_chan) &&
|
|
MATCH_CHAN(channelmix_table[i].dst_chan, dst_chan) &&
|
|
MATCH_MASK(channelmix_table[i].src_mask, src_mask) &&
|
|
MATCH_MASK(channelmix_table[i].dst_mask, dst_mask))
|
|
return &channelmix_table[i];
|
|
}
|
|
return NULL;
|
|
}
|