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audiomixer: add support for U8, U16, U24, U32, S24_32 and U24_32 formats

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This commit is contained in:
Julian Bouzas 2021-09-08 09:15:21 -04:00
parent 20e64b39da
commit 7d0a8b68e8
4 changed files with 173 additions and 1 deletions
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37
spa/plugins/audiomixer/mix-ops.h
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@ -24,6 +24,16 @@
#include <spa/utils/defs.h>
static inline uint32_t read_u24(const void *src)
{
const uint8_t *s = src;
#if __BYTE_ORDER == __LITTLE_ENDIAN
return (((uint32_t)s[2] << 16) | ((uint32_t)(uint8_t)s[1] << 8) | (uint32_t)(uint8_t)s[0]);
#else
return (((uint32_t)s[0] << 16) | ((uint32_t)(uint8_t)s[1] << 8) | (uint32_t)(uint8_t)s[2]);
#endif
}
static inline int32_t read_s24(const void *src)
{
const int8_t *s = src;
@ -34,6 +44,20 @@ static inline int32_t read_s24(const void *src)
#endif
}
static inline void write_u24(void *dst, uint32_t val)
{
uint8_t *d = dst;
#if __BYTE_ORDER == __LITTLE_ENDIAN
d[0] = (uint8_t) (val);
d[1] = (uint8_t) (val >> 8);
d[2] = (uint8_t) (val >> 16);
#else
d[0] = (uint8_t) (val >> 16);
d[1] = (uint8_t) (val >> 8);
d[2] = (uint8_t) (val);
#endif
}
static inline void write_s24(void *dst, int32_t val)
{
uint8_t *d = dst;
@ -51,18 +75,25 @@ static inline void write_s24(void *dst, int32_t val)
#define S8_MIN -127
#define S8_MAX 127
#define S8_MIX(a, b) (int8_t)(SPA_CLAMP((int16_t)(a) + (int16_t)(b), S8_MIN, S8_MAX))
#define U8_MIX(a, b) (uint8_t)((int16_t)S8_MIX((int16_t)(a) - S8_MAX, (int16_t)(b) - S8_MAX) + S8_MAX)
#define S16_MIN -32767
#define S16_MAX 32767
#define S16_MIX(a, b) (int16_t)(SPA_CLAMP((int32_t)(a) + (int32_t)(b), S16_MIN, S16_MAX))
#define U16_MIX(a, b) (uint16_t)((int32_t)S16_MIX((int32_t)(a) - S16_MAX, (int32_t)(b) - S16_MAX) + S16_MAX)
#define S24_MIN -8388607
#define S24_MAX 8388607
#define S24_MIX(a, b) (int32_t)(SPA_CLAMP((int32_t)(a) + (int32_t)(b), S24_MIN, S24_MAX))
#define U24_MIX(a, b) (uint32_t)((int32_t)S24_MIX((int32_t)(a) - S24_MAX, (int32_t)(b) - S24_MAX) + S24_MAX)
#define S32_MIN -2147483647
#define S32_MAX 2147483647
#define S32_MIX(a, b) (int32_t)(SPA_CLAMP((int64_t)(a) + (int64_t)(b), S32_MIN, S32_MAX))
#define U32_MIX(a, b) (uint32_t)((int64_t)S32_MIX((int64_t)(a) - S32_MAX, (int64_t)(b) - S32_MAX) + S32_MAX)
#define S24_32_MIX(a, b) S24_MIX (a, b)
#define U24_32_MIX(a, b) U24_MIX (a, b)
#define F32_MIX(a, b) (float)((float)(a) + (float)(b))
@ -95,9 +126,15 @@ void mix_##name##_##arch(struct mix_ops *ops, void * SPA_RESTRICT dst, \
uint32_t n_samples) \
DEFINE_FUNCTION(s8, c);
DEFINE_FUNCTION(u8, c);
DEFINE_FUNCTION(s16, c);
DEFINE_FUNCTION(u16, c);
DEFINE_FUNCTION(s24, c);
DEFINE_FUNCTION(u24, c);
DEFINE_FUNCTION(s32, c);
DEFINE_FUNCTION(u32, c);
DEFINE_FUNCTION(s24_32, c);
DEFINE_FUNCTION(u24_32, c);
DEFINE_FUNCTION(f32, c);
DEFINE_FUNCTION(f64, c);