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channelmix: normalize volumes

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Normalize the volumes.
Don't mix in LFE by default but add an option
Move some booleans to flags
Improve some checks for fastpaths.
This commit is contained in:
Wim Taymans 2020-09-03 13:20:36 +02:00
parent 289a8e86ca
commit f7d8fef070
5 changed files with 89 additions and 81 deletions
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10
spa/plugins/audioconvert/channelmix-ops.h
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@ -46,13 +46,15 @@ struct channelmix {
uint64_t src_mask;
uint64_t dst_mask;
uint32_t cpu_flags;
#define CHANNELMIX_OPTION_MIX_LFE (1<<0) /**< mix LFE */
uint32_t options;
struct spa_log *log;
unsigned int zero:1; /* all zero components */
unsigned int identity:1; /* identity matrix */
unsigned int norm:1; /* all normal values */
unsigned int equal:1; /* all values are equal */
#define CHANNELMIX_FLAG_ZERO (1<<0) /**< all zero components */
#define CHANNELMIX_FLAG_IDENTITY (1<<1) /**< identity matrix */
#define CHANNELMIX_FLAG_EQUAL (1<<2) /**< all values are equal */
uint32_t flags;
float matrix_orig[SPA_AUDIO_MAX_CHANNELS][SPA_AUDIO_MAX_CHANNELS];
float matrix[SPA_AUDIO_MAX_CHANNELS][SPA_AUDIO_MAX_CHANNELS];