gavl_dsp_funcs_t Struct Reference

Function table. More...

#include <gavldsp.h>

Data Fields
int(*)	sad_rgb15 (const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)
	Get the sum of absolute differences (RGB/BGR15).
int(*)	sad_rgb16 (const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)
	Get the sum of absolute differences (RGB/BGR16).
int(*)	sad_8 (const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)
	Get the sum of absolute differences (8 bit).
int(*)	sad_16 (const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)
	Get the sum of absolute differences (16 bit).
float(*)	sad_f (const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)
	Get the sum of absolute differences (float).
void(*)	average_rgb15 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)
	Average 2 scanlines (RGB/BGR15).
void(*)	average_rgb16 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)
	Average 2 scanlines (RGB/BGR16).
void(*)	average_8 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)
	Average 2 scanlines (8 bit).
void(*)	average_16 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)
	Average 2 scanlines (16 bit).
void(*)	average_f (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)
	Average 2 scanlines (float).
void(*)	interpolate_rgb15 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float)
	Interpolate 2 scanlines (RGB/BGR15).
void(*)	interpolate_rgb16 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)
	Interpolate 2 scanlines (RGB/BGR16).
void(*)	interpolate_8 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)
	Interpolate 2 scanlines (8 bit).
void(*)	interpolate_16 (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)
	Interpolate 2 scanlines (16 bit).
void(*)	interpolate_f (const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)
	Interpolate 2 scanlines (float).
void(*)	bswap_16 (void *ptr, int len)
	Do 16 bit endian swapping.
void(*)	bswap_32 (void *ptr, int len)
	Do 32 byte endian swapping.
void(*)	bswap_64 (void *ptr, int len)
	Do 64 byte endian swapping.
void(*)	add_u8 (const void *src1, const void *src2, void *dst, int num)
	Add 2 uint8_t vectors.
void(*)	add_u8_s (const void *src1, const void *src2, void *dst, int num)
	Add 2 uint8_t vectors (for audio stored as unsigned).
void(*)	add_s8 (const void *src1, const void *src2, void *dst, int num)
	Add 2 int8_t vectors.
void(*)	add_u16 (const void *src1, const void *src2, void *dst, int num)
	Add 2 uint16_t vectors.
void(*)	add_u16_s (const void *src1, const void *src2, void *dst, int num)
	Add 2 uint16_t vectors (for audio stored as unsigned).
void(*)	add_s16 (const void *src1, const void *src2, void *dst, int num)
	Add 2 int16_t vectors.
void(*)	add_s32 (const void *src1, const void *src2, void *dst, int num)
	Add 2 int32_t vectors.
void(*)	add_float (const void *src1, const void *src2, void *dst, int num)
	Add 2 float vectors.
void(*)	add_double (const void *src1, const void *src2, void *dst, int num)
	Add 2 float vectors.
void(*)	sub_u8 (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 uint8_t vectors.
void(*)	sub_u8_s (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 uint8_t vectors (for audio stored as unsigned).
void(*)	sub_s8 (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 int8_t vectors.
void(*)	sub_u16 (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 uint16_t vectors.
void(*)	sub_u16_s (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 uint16_t vectors (for audio stored as unsigned).
void(*)	sub_s16 (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 int16_t vectors.
void(*)	sub_s32 (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 int32_t vectors.
void(*)	sub_float (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 float vectors.
void(*)	sub_double (const void *src1, const void *src2, void *dst, int num)
	Subtract 2 float vectors.
void(*)	shift_up_16 (void *ptr, int num, int bits)
	Shift up.
void(*)	shift_down_16 (void *ptr, int num, int bits)
	Shift down.
void(*)	shift_up_copy_16 (void *dst, const void *src, int num, int bits)
	Shift up and copy.
void(*)	shift_down_copy_16 (void *dst, const void *src, int num, int bits)
	Shift down.
void(*)	shuffle_8_4 (void *dst, const void *src, int num, int *indices)
	Shuffle bytes in 4 byte words.
void(*)	shuffle_16_4 (void *dst, const void *src, int num, int *indices)
	Shuffle 16 bit words in groups of 4.

Detailed Description

Function table.

This structure contains pointers to the available DSP functions.

Field Documentation

sad_rgb15

int(*) gavl_dsp_funcs_t::sad_rgb15(const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)

Get the sum of absolute differences (RGB/BGR15).

Parameters

src_1	Plane 1
src_2	Plane 2
stride_1	Byte distance between scanlines for src_1
stride_2	Byte distance between scanlines for src_2
w	Width
h	Height

Returns

The sum of absolute differences

The RGB values will be scaled to 8 bit before the differences are calculated.

sad_rgb16

int(*) gavl_dsp_funcs_t::sad_rgb16(const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)

Get the sum of absolute differences (RGB/BGR16).

Parameters

src_1	Plane 1
src_2	Plane 2
stride_1	Byte distance between scanlines for src_1
stride_2	Byte distance between scanlines for src_2
w	Width
h	Height

Returns

The sum of absolute differences

The RGB values will be scaled to 8 bit before the differences are calculated.

sad_8

int(*) gavl_dsp_funcs_t::sad_8(const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)

Get the sum of absolute differences (8 bit).

Parameters

src_1	Plane 1
src_2	Plane 2
stride_1	Byte distance between scanlines for src_1
stride_2	Byte distance between scanlines for src_2
w	Width
h	Height

Returns

The sum of absolute differences

sad_16

int(*) gavl_dsp_funcs_t::sad_16(const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)

Get the sum of absolute differences (16 bit).

Parameters

src_1	Plane 1
src_2	Plane 2
stride_1	Byte distance between scanlines for src_1
stride_2	Byte distance between scanlines for src_2
w	Width
h	Height

Returns

The sum of absolute differences

sad_f

float(*) gavl_dsp_funcs_t::sad_f(const uint8_t *src_1, const uint8_t *src_2, int stride_1, int stride_2, int w, int h)

Get the sum of absolute differences (float).

Parameters

src_1	Plane 1
src_2	Plane 2
stride_1	Byte distance between scanlines for src_1
stride_2	Byte distance between scanlines for src_2
w	Width
h	Height

Returns

The sum of absolute differences

average_rgb15

void(*) gavl_dsp_funcs_t::average_rgb15(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)

Average 2 scanlines (RGB/BGR15).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of pixels

average_rgb16

void(*) gavl_dsp_funcs_t::average_rgb16(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)

Average 2 scanlines (RGB/BGR16).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of pixels

average_8

void(*) gavl_dsp_funcs_t::average_8(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)

Average 2 scanlines (8 bit).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of bytes

average_16

void(*) gavl_dsp_funcs_t::average_16(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)

Average 2 scanlines (16 bit).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of shorts

average_f

void(*) gavl_dsp_funcs_t::average_f(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num)

Average 2 scanlines (float).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of floats

interpolate_rgb15

void(*) gavl_dsp_funcs_t::interpolate_rgb15(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float)

Interpolate 2 scanlines (RGB/BGR15).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of pixels
fac	Factor for src_1 (0.0 .. 1.0)

Sets the destination to src_1 * fac + src_2 * (1.0-fac)

interpolate_rgb16

void(*) gavl_dsp_funcs_t::interpolate_rgb16(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)

Interpolate 2 scanlines (RGB/BGR16).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of pixels
fac	Factor for src_1 (0.0 .. 1.0)

Sets the destination to src_1 * fac + src_2 * (1.0-fac)

interpolate_8

void(*) gavl_dsp_funcs_t::interpolate_8(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)

Interpolate 2 scanlines (8 bit).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of bytes
fac	Factor for src_1 (0.0 .. 1.0)

Sets the destination to src_1 * fac + src_2 * (1.0-fac)

interpolate_16

void(*) gavl_dsp_funcs_t::interpolate_16(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)

Interpolate 2 scanlines (16 bit).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of shorts
fac	Factor for src_1 (0.0 .. 1.0)

Sets the destination to src_1 * fac + src_2 * (1.0-fac)

interpolate_f

void(*) gavl_dsp_funcs_t::interpolate_f(const uint8_t *src_1, const uint8_t *src_2, uint8_t *dst, int num, float fac)

Interpolate 2 scanlines (float).

Parameters

src_1	Scanline 1
src_2	Scanline 2
dst	Destination
num	Number of floats
fac	Factor for src_1 (0.0 .. 1.0)

Sets the destination to src_1 * fac + src_2 * (1.0-fac)

bswap_16

void(*) gavl_dsp_funcs_t::bswap_16(void *ptr, int len)

Do 16 bit endian swapping.

Parameters

ptr	Pointer to the data
len	Len in 16 bit words

bswap_32

void(*) gavl_dsp_funcs_t::bswap_32(void *ptr, int len)

Do 32 byte endian swapping.

Parameters

ptr	Pointer to the data
len	Len in 32 bit doublewords

bswap_64

void(*) gavl_dsp_funcs_t::bswap_64(void *ptr, int len)

Do 64 byte endian swapping.

Parameters

ptr	Pointer to the data
len	Len in 64 bit quadwords

add_u8

void(*) gavl_dsp_funcs_t::add_u8(const void *src1, const void *src2, void *dst, int num)

Add 2 uint8_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_u8_s

void(*) gavl_dsp_funcs_t::add_u8_s(const void *src1, const void *src2, void *dst, int num)

Add 2 uint8_t vectors (for audio stored as unsigned).

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_s8

void(*) gavl_dsp_funcs_t::add_s8(const void *src1, const void *src2, void *dst, int num)

Add 2 int8_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_u16

void(*) gavl_dsp_funcs_t::add_u16(const void *src1, const void *src2, void *dst, int num)

Add 2 uint16_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_u16_s

void(*) gavl_dsp_funcs_t::add_u16_s(const void *src1, const void *src2, void *dst, int num)

Add 2 uint16_t vectors (for audio stored as unsigned).

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_s16

void(*) gavl_dsp_funcs_t::add_s16(const void *src1, const void *src2, void *dst, int num)

Add 2 int16_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_s32

void(*) gavl_dsp_funcs_t::add_s32(const void *src1, const void *src2, void *dst, int num)

Add 2 int32_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_float

void(*) gavl_dsp_funcs_t::add_float(const void *src1, const void *src2, void *dst, int num)

Add 2 float vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

add_double

void(*) gavl_dsp_funcs_t::add_double(const void *src1, const void *src2, void *dst, int num)

Add 2 float vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_u8

void(*) gavl_dsp_funcs_t::sub_u8(const void *src1, const void *src2, void *dst, int num)

Subtract 2 uint8_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_u8_s

void(*) gavl_dsp_funcs_t::sub_u8_s(const void *src1, const void *src2, void *dst, int num)

Subtract 2 uint8_t vectors (for audio stored as unsigned).

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_s8

void(*) gavl_dsp_funcs_t::sub_s8(const void *src1, const void *src2, void *dst, int num)

Subtract 2 int8_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_u16

void(*) gavl_dsp_funcs_t::sub_u16(const void *src1, const void *src2, void *dst, int num)

Subtract 2 uint16_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_u16_s

void(*) gavl_dsp_funcs_t::sub_u16_s(const void *src1, const void *src2, void *dst, int num)

Subtract 2 uint16_t vectors (for audio stored as unsigned).

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_s16

void(*) gavl_dsp_funcs_t::sub_s16(const void *src1, const void *src2, void *dst, int num)

Subtract 2 int16_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_s32

void(*) gavl_dsp_funcs_t::sub_s32(const void *src1, const void *src2, void *dst, int num)

Subtract 2 int32_t vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_float

void(*) gavl_dsp_funcs_t::sub_float(const void *src1, const void *src2, void *dst, int num)

Subtract 2 float vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

sub_double

void(*) gavl_dsp_funcs_t::sub_double(const void *src1, const void *src2, void *dst, int num)

Subtract 2 float vectors.

Parameters

src1	Source 1
src2	Source 2
dst	Destination
num	Number of entries

src1 and/or src2 can be identical to dst

shift_up_16

void(*) gavl_dsp_funcs_t::shift_up_16(void *ptr, int num, int bits)

Shift up.

Parameters

ptr	Pointer
len	Number of 16 bit elements
bits	Number of bits to shift

shift_down_16

void(*) gavl_dsp_funcs_t::shift_down_16(void *ptr, int num, int bits)

Shift down.

Parameters

ptr	Pointer
len	Number of 16 bit elements
bits	Number of bits to shift

shift_up_copy_16

void(*) gavl_dsp_funcs_t::shift_up_copy_16(void *dst, const void *src, int num, int bits)

Shift up and copy.

Parameters

src	Source
dst	Destination
len	Number of 16 bit elements
bits	Number of bits to shift

shift_down_copy_16

void(*) gavl_dsp_funcs_t::shift_down_copy_16(void *dst, const void *src, int num, int bits)

Shift down.

Parameters

src	Source
dst	Destination
len	Number of 16 bit elements
bits	Number of bits to shift

shuffle_8_4

void(*) gavl_dsp_funcs_t::shuffle_8_4(void *dst, const void *src, int num, int *indices)

Shuffle bytes in 4 byte words.

Parameters

ptr	Pointer
len	Number of 32 bit elements
mask	4 bytes with sources indices. 0x80 means clear.

shuffle_16_4

void(*) gavl_dsp_funcs_t::shuffle_16_4(void *dst, const void *src, int num, int *indices)

Shuffle 16 bit words in groups of 4.

Parameters

ptr	Pointer
len	Number of 64 bit elements
mask	4 bytes with sources indices. 0x80 means clear.

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The documentation for this struct was generated from the following file:

• gavldsp.h