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audioconvert: add delay to rear channels when upmixing

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See #861
This commit is contained in:
Wim Taymans 2022-03-01 09:53:40 +01:00
parent d62d2764e8
commit 5a307c11e1
9 changed files with 141 additions and 26 deletions
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7
spa/plugins/audioconvert/channelmix-ops.h
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@ -33,6 +33,7 @@
extern struct spa_log_topic *log_topic;
#include "crossover.h"
#include "delay.h"
#define VOLUME_MIN 0.0f
#define VOLUME_NORM 1.0f
@ -45,6 +46,7 @@ extern struct spa_log_topic *log_topic;
#define MASK_5_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
#define MASK_7_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
#define BUFFER_SIZE 4096
struct channelmix {
uint32_t src_chan;
@ -69,8 +71,13 @@ struct channelmix {
float freq; /* sample frequency */
float lfe_cutoff; /* in Hz, 0 is disabled */
float rear_delay; /* in ms, 0 is disabled */
struct lr4 lr4[SPA_AUDIO_MAX_CHANNELS];
float buffer[2][BUFFER_SIZE];
uint32_t pos[2];
uint32_t delay;
void (*process) (struct channelmix *mix, void * SPA_RESTRICT dst[],
const void * SPA_RESTRICT src[], uint32_t n_samples);
void (*set_volume) (struct channelmix *mix, float volume, bool mute,