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channelmix: small cleanups

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Fix indent
Rename DUAL/QUAD to REAR and SIDE and use it for checking availability
of stereo pairs.
This commit is contained in:
Wim Taymans 2021-03-06 21:29:36 +01:00
parent 4d21b5f8bd
commit c7309f0248
1 changed files with 29 additions and 25 deletions
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54
spa/plugins/audioconvert/channelmix-ops.c
View file

@ -155,8 +155,8 @@ static const struct channelmix_info *find_channelmix_info(uint32_t src_chan, uin
#define _MASK(ch) (1ULL << SPA_AUDIO_CHANNEL_ ## ch)
#define STEREO (_MASK(FL)|_MASK(FR))
#define DUAL_STEREO (_MASK(RL)|_MASK(RR))
#define QUAD_STEREO (_MASK(SL)|_MASK(SR))
#define REAR (_MASK(RL)|_MASK(RR))
#define SIDE (_MASK(SL)|_MASK(SR))
static int make_matrix(struct channelmix *mix)
{
@ -203,7 +203,7 @@ static int make_matrix(struct channelmix *mix)
unassigned = src_mask & ~dst_mask;
spa_log_debug(mix->log, "unassigned %08" PRIx64, unassigned);
spa_log_debug(mix->log, "unassigned downmix %08" PRIx64, unassigned);
if (unassigned & _MASK(FC)){
if ((dst_mask & STEREO) == STEREO){
@ -220,17 +220,21 @@ static int make_matrix(struct channelmix *mix)
}
}
if (mix->src_chan <= 3 && (src_mask & STEREO) == STEREO && (dst_mask & DUAL_STEREO) == DUAL_STEREO) {
spa_log_debug(mix->log, "copy STEREO to REAR");
if ((src_mask & _MASK(RL)) == 0) matrix[RL][FL] = 1.0f;
if ((src_mask & _MASK(RR)) == 0) matrix[RR][FR] = 1.0f;
if (mix->src_chan <= 3 && (src_mask & STEREO) == STEREO && (dst_mask & REAR) == REAR) {
spa_log_debug(mix->log, "copy STEREO to REAR");
if ((src_mask & _MASK(RL)) == 0)
matrix[RL][FL] = 1.0f;
if ((src_mask & _MASK(RR)) == 0)
matrix[RR][FR] = 1.0f;
if ((dst_mask & QUAD_STEREO) == QUAD_STEREO) {
spa_log_debug(mix->log, "copy STEREO to SIDES");
if ((src_mask & _MASK(SL)) == 0) matrix[SL][FL] = 1.0f;
if ((src_mask & _MASK(SR)) == 0) matrix[SR][FR] = 1.0f;
}
}
if ((dst_mask & SIDE) == SIDE) {
spa_log_debug(mix->log, "copy STEREO to SIDES");
if ((src_mask & _MASK(SL)) == 0)
matrix[SL][FL] = 1.0f;
if ((src_mask & _MASK(SR)) == 0)
matrix[SR][FR] = 1.0f;
}
}
if (unassigned & STEREO){
if (dst_mask & _MASK(FC)) {
@ -245,15 +249,15 @@ static int make_matrix(struct channelmix *mix)
}
if (unassigned & _MASK(RC)) {
if (dst_mask & _MASK(RL)){
if (dst_mask & REAR){
spa_log_debug(mix->log, "assign RC to RL+RR");
matrix[RL][RC] += SQRT1_2;
matrix[RR][RC] += SQRT1_2;
} else if (dst_mask & _MASK(SL)) {
} else if (dst_mask & SIDE) {
spa_log_debug(mix->log, "assign RC to SL+SR");
matrix[SL][RC] += SQRT1_2;
matrix[SR][RC] += SQRT1_2;
} else if(dst_mask & _MASK(FL)) {
} else if(dst_mask & STEREO) {
spa_log_debug(mix->log, "assign RC to FL+FR");
if (matrix_encoding == MATRIX_DOLBY ||
matrix_encoding == MATRIX_DPLII) {
@ -276,21 +280,21 @@ static int make_matrix(struct channelmix *mix)
}
}
if (unassigned & _MASK(RL)) {
if (unassigned & REAR) {
if (dst_mask & _MASK(RC)) {
spa_log_debug(mix->log, "assign RL+RR to RC");
matrix[RC][RL] += SQRT1_2;
matrix[RC][RR] += SQRT1_2;
} else if (dst_mask & _MASK(SL)) {
} else if (dst_mask & SIDE) {
spa_log_debug(mix->log, "assign RL+RR to SL+SR");
if (src_mask & _MASK(SL)) {
if (src_mask & SIDE) {
matrix[SL][RL] += SQRT1_2;
matrix[SR][RR] += SQRT1_2;
} else {
matrix[SL][RL] += 1.0f;
matrix[SR][RR] += 1.0f;
}
} else if (dst_mask & _MASK(FL)) {
} else if (dst_mask & STEREO) {
spa_log_debug(mix->log, "assign RL+RR to FL+FR %f", slev);
if (matrix_encoding == MATRIX_DOLBY) {
matrix[FL][RL] -= slev * SQRT1_2;
@ -315,8 +319,8 @@ static int make_matrix(struct channelmix *mix)
}
}
if (unassigned & _MASK(SL)) {
if (dst_mask & _MASK(RL)) {
if (unassigned & SIDE) {
if (dst_mask & REAR) {
spa_log_debug(mix->log, "assign SL+SR to RL+RR");
if (src_mask & _MASK(RL)) {
matrix[RL][SL] += SQRT1_2;
@ -329,7 +333,7 @@ static int make_matrix(struct channelmix *mix)
spa_log_debug(mix->log, "assign SL+SR to RC");
matrix[RC][SL]+= SQRT1_2;
matrix[RC][SR]+= SQRT1_2;
} else if (dst_mask & _MASK(FL)) {
} else if (dst_mask & STEREO) {
spa_log_debug(mix->log, "assign SL+SR to FL+FR");
if (matrix_encoding == MATRIX_DOLBY) {
matrix[FL][SL] -= slev * SQRT1_2;
@ -355,7 +359,7 @@ static int make_matrix(struct channelmix *mix)
}
if (unassigned & _MASK(FLC)) {
if (dst_mask & _MASK(FL)) {
if (dst_mask & STEREO) {
spa_log_debug(mix->log, "assign FLC+FRC to FL+FR");
matrix[FL][FLC]+= 1.0f;
matrix[FR][FRC]+= 1.0f;
@ -372,7 +376,7 @@ static int make_matrix(struct channelmix *mix)
if (dst_mask & _MASK(FC)) {
spa_log_debug(mix->log, "assign LFE to FC");
matrix[FC][LFE] += llev;
} else if (dst_mask & _MASK(FL)) {
} else if (dst_mask & STEREO) {
spa_log_debug(mix->log, "assign LFE to FL+FR");
matrix[FL][LFE] += llev * SQRT1_2;
matrix[FR][LFE] += llev * SQRT1_2;