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channelmix: mix some LFE as well
This commit is contained in:
Wim Taymans
parent
3dc2254196
commit
61cc453cbe
2 changed files with 135 additions and 11 deletions
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@ -223,7 +223,7 @@ channelmix_f32_2_5p1(void *data, int n_dst, void *dst[n_dst],
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}
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}
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/* FL+FR+FC+LFE+RL+RR -> FL+FR */
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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, int n_bytes)
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@ -235,6 +235,7 @@ channelmix_f32_5p1_2(void *data, int n_dst, void *dst[n_dst],
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float v = m[0];
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const float clev = 0.7071f;
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const float slev = 0.7071f;
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const float llev = 0.5f;
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if (v <= VOLUME_MIN) {
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memset(d[0], 0, n_bytes);
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@ -242,21 +243,21 @@ channelmix_f32_5p1_2(void *data, int n_dst, void *dst[n_dst],
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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];
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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];
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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+RL+RR -> FL+FR+FC+LFE*/
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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, int n_bytes)
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@ -283,9 +284,45 @@ channelmix_f32_5p1_3p1(void *data, int n_dst, void *dst[n_dst],
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}
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}
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/* FL+FR+FC+LFE+RL+RR -> FL+FR+RL+RR*/
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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_5p1_4(void *data, int n_dst, void *dst[n_dst],
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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, 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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float v = m[0];
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const float clev = 0.7071f;
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const float slev = 0.7071f;
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const float llev = 0.5f;
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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, int n_bytes)
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{
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int i, n, n_samples;
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@ -294,6 +331,35 @@ channelmix_f32_5p1_4(void *data, int n_dst, void *dst[n_dst],
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float *m = matrix;
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float v = m[0];
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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 -> 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, 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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float v = m[0];
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const float clev = 0.7071f;
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const float llev = 0.5f;
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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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@ -301,7 +367,7 @@ channelmix_f32_5p1_4(void *data, int n_dst, void *dst[n_dst],
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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] * 0.7071f;
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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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@ -310,7 +376,7 @@ channelmix_f32_5p1_4(void *data, int n_dst, void *dst[n_dst],
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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] * 0.7071f;
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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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@ -319,6 +385,49 @@ channelmix_f32_5p1_4(void *data, int n_dst, void *dst[n_dst],
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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, 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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float v = m[0];
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const float clev = 0.7071f;
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const float slev = 0.7071f;
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const float llev = 0.5f;
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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, int n_bytes);
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@ -361,12 +470,17 @@ static const struct channelmix_info {
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#endif
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{ 6, MASK_5_1, 4, MASK_QUAD, channelmix_f32_5p1_4, 0 },
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{ 6, MASK_5_1, 4, MASK_3_1, channelmix_f32_5p1_3p1, 0 },
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{ 8, MASK_7_1, 2, MASK_STEREO, channelmix_f32_7p1_2, 0 },
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{ 8, MASK_7_1, 4, MASK_QUAD, channelmix_f32_7p1_4, 0 },
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{ 8, MASK_7_1, 4, MASK_3_1, channelmix_f32_7p1_3p1, 0 },
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{ -1, 0, -1, 0, channelmix_f32_n_m, 0 },
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};
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#define MATCH_CHAN(a,b) ((a) == -1 || (a) == (b))
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#define MATCH_FEATURES(a,b) ((a) == 0 || ((a) & (b)) != 0)
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#define MATCH_MASK(a,b) (((a) & (b)) == (b))
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#define MATCH_MASK(a,b) ((a) == 0 || ((a) & (b)) == (b))
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static const struct channelmix_info *find_channelmix_info(uint32_t src_chan, uint64_t src_mask,
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uint32_t dst_chan, uint64_t dst_mask, uint32_t features)
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