mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-11-02 09:01:50 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

channelmix: Prepare for generating LFE channel

Browse source 
Add channelmix.lfe-cutoff property, 0 is disabled
Disable upmix by default
This commit is contained in:
Wim Taymans 2021-03-17 11:09:19 +01:00
parent 4200ca98d6
commit e51cc5b537
7 changed files with 27 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

22
spa/plugins/audioconvert/channelmix-ops-c.c
View file

@ -238,6 +238,7 @@ channelmix_f32_2_3p1_c(struct channelmix *mix, uint32_t n_dst, void * SPA_RESTRI
const float v0 = mix->matrix[0][0];
const float v1 = mix->matrix[1][1];
const float v2 = (mix->matrix[2][0] + mix->matrix[2][1]) * 0.5f;
const float v3 = (mix->matrix[3][0] + mix->matrix[3][1]) * 0.5f;
if (SPA_FLAG_IS_SET(mix->flags, CHANNELMIX_FLAG_ZERO)) {
for (i = 0; i < n_dst; i++)
@ -245,18 +246,20 @@ channelmix_f32_2_3p1_c(struct channelmix *mix, uint32_t n_dst, void * SPA_RESTRI
}
else if (v0 == 1.0f && v1 == 1.0f) {
for (n = 0; n < n_samples; n++) {
float c = s[0][n] + s[1][n];
d[0][n] = s[0][n];
d[1][n] = s[1][n];
d[2][n] = (s[0][n] + s[1][n]) * v2;
d[3][n] = 0.0f;
d[2][n] = c * v2;
d[3][n] = c * v3;
}
}
else {
for (n = 0; n < n_samples; n++) {
float c = s[0][n] + s[1][n];
d[0][n] = s[0][n] * v0;
d[1][n] = s[1][n] * v1;
d[2][n] = (d[0][n] + d[1][n]) * v2;
d[3][n] = 0.0f;
d[2][n] = c * v2;
d[3][n] = c * v3;
}
}
}
@ -272,6 +275,7 @@ channelmix_f32_2_5p1_c(struct channelmix *mix, uint32_t n_dst, void * SPA_RESTRI
const float v0 = mix->matrix[0][0];
const float v1 = mix->matrix[1][1];
const float v2 = (mix->matrix[2][0] + mix->matrix[2][1]) * 0.5f;
const float v3 = (mix->matrix[3][0] + mix->matrix[3][1]) * 0.5f;
const float v4 = mix->matrix[4][0];
const float v5 = mix->matrix[5][1];
@ -281,18 +285,20 @@ channelmix_f32_2_5p1_c(struct channelmix *mix, uint32_t n_dst, void * SPA_RESTRI
}
else if (v0 == 1.0f && v1 == 1.0f && v4 == 1.0f && v5 == 1.0f) {
for (n = 0; n < n_samples; n++) {
float c = s[0][n] + s[1][n];
d[0][n] = d[4][n] = s[0][n];
d[1][n] = d[5][n] = s[1][n];
d[2][n] = (s[0][n] + s[1][n]) * v2;
d[3][n] = 0.0f;
d[2][n] = c * v2;
d[3][n] = c * v3;
}
}
else {
for (n = 0; n < n_samples; n++) {
float c = s[0][n] + s[1][n];
d[0][n] = s[0][n] * v0;
d[1][n] = s[1][n] * v1;
d[2][n] = (d[0][n] + d[1][n]) * v2;
d[3][n] = 0.0f;
d[2][n] = c * v2;
d[3][n] = c * v3;
d[4][n] = s[0][n] * v4;
d[5][n] = s[1][n] * v5;
}