#include <inttypes.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/bswap.h"
#include "libavutil/cpu.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "config.h"
#include "rgb2rgb.h"
#include "swscale_internal.h"
#include "swscale.h"

Macros
#define	DEBUG_SWSCALE_BUFFERS 0

#define	DEBUG_BUFFERS(...)

#define	RGB2YUV_SHIFT 15

#define	BY ( (int) (0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	BV (-(int) (0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	BU ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	GY ( (int) (0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	GV (-(int) (0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	GU (-(int) (0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	RY ( (int) (0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	RV ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

#define	RU (-(int) (0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Functions
static av_always_inline void	fillPlane (uint8_t *plane, int stride, int width, int height, int y, uint8_t val)

static void	hScale16To19_c (SwsContext c, int16_t _dst, int dstW, const uint8_t _src, const int16_t filter, const int32_t *filterPos, int filterSize)

static void	hScale16To15_c (SwsContext c, int16_t dst, int dstW, const uint8_t _src, const int16_t filter, const int32_t *filterPos, int filterSize)

static void	hScale8To15_c (SwsContext c, int16_t dst, int dstW, const uint8_t src, const int16_t filter, const int32_t *filterPos, int filterSize)

static void	hScale8To19_c (SwsContext c, int16_t _dst, int dstW, const uint8_t src, const int16_t filter, const int32_t *filterPos, int filterSize)

static void	chrRangeToJpeg_c (int16_t dstU, int16_t dstV, int width)

static void	chrRangeFromJpeg_c (int16_t dstU, int16_t dstV, int width)

static void	lumRangeToJpeg_c (int16_t *dst, int width)

static void	lumRangeFromJpeg_c (int16_t *dst, int width)

static void	chrRangeToJpeg16_c (int16_t _dstU, int16_t _dstV, int width)

static void	chrRangeFromJpeg16_c (int16_t _dstU, int16_t _dstV, int width)

static void	lumRangeToJpeg16_c (int16_t *_dst, int width)

static void	lumRangeFromJpeg16_c (int16_t *_dst, int width)

static int	swscale (SwsContext c, const uint8_t src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])

av_cold void	ff_sws_init_range_convert (SwsContext *c)

static av_cold void	sws_init_swscale (SwsContext *c)

SwsFunc	ff_getSwsFunc (SwsContext *c)
	Return function pointer to fastest main scaler path function depending on architecture and available optimizations. More...

static void	reset_ptr (const uint8_t *src[], enum AVPixelFormat format)

static int	check_image_pointers (const uint8_t *const data[4], enum AVPixelFormat pix_fmt, const int linesizes[4])

static void	xyz12Torgb48 (struct SwsContext c, uint16_t dst, const uint16_t *src, int stride, int h)

static void	rgb48Toxyz12 (struct SwsContext c, uint16_t dst, const uint16_t *src, int stride, int h)

int attribute_align_arg	sws_scale (struct SwsContext c, const uint8_t const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
	swscale wrapper, so we don't need to export the SwsContext. More...

Variables
const uint8_t	ff_dither_8x8_128 [9][8]

static const uint8_t	sws_pb_64 [8]

Macro Definition Documentation

◆ DEBUG_SWSCALE_BUFFERS

#define DEBUG_SWSCALE_BUFFERS 0

Definition at line 226 of file swscale.c.

◆ DEBUG_BUFFERS

#define DEBUG_BUFFERS ( ... )

Value:

if (DEBUG_SWSCALE_BUFFERS) \

av_log(c, AV_LOG_DEBUG, __VA_ARGS__)

AV_LOG_DEBUG

#define AV_LOG_DEBUG

Stuff which is only useful for libav* developers.

Definition: log.h:197

c

static double c[64]

Definition: vsrc_mptestsrc.c:87

DEBUG_SWSCALE_BUFFERS

#define DEBUG_SWSCALE_BUFFERS

Definition: swscale.c:226

Definition at line 227 of file swscale.c.

Referenced by swscale().

◆ RGB2YUV_SHIFT

#define RGB2YUV_SHIFT 15

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), bgr24ToY_c(), ff_rgb24toyv12_c(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb16_to_y(), planar_rgb_to_uv(), planar_rgb_to_y(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb24ToY_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64funcs(), rgb64ToUV_c_template(), rgb64ToUV_half_c_template(), rgb64ToY_c_template(), and sws_scale().

◆ BY

#define BY ( (int) (0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ BV

#define BV (-(int) (0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ BU

#define BU ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ GY

#define GY ( (int) (0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ GV

#define GV (-(int) (0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ GU

#define GU (-(int) (0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ RY

#define RY ( (int) (0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ RV

#define RV ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

◆ RU

#define RU (-(int) (0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5))

Referenced by sws_scale().

Function Documentation

◆ fillPlane()

static av_always_inline void fillPlane	(	uint8_t *	plane,
		int	stride,
		int	width,
		int	height,
		int	y,
		uint8_t	val
	)

static

Definition at line 55 of file swscale.c.

Referenced by swscale().

◆ hScale16To19_c()

static void hScale16To19_c	(	SwsContext *	c,
		int16_t *	_dst,
		int	dstW,
		const uint8_t *	_src,
		const int16_t *	filter,
		const int32_t *	filterPos,
		int	filterSize
	)

static

Definition at line 66 of file swscale.c.

Referenced by sws_init_swscale().

◆ hScale16To15_c()

static void hScale16To15_c	(	SwsContext *	c,
		int16_t *	dst,
		int	dstW,
		const uint8_t *	_src,
		const int16_t *	filter,
		const int32_t *	filterPos,
		int	filterSize
	)

static

Definition at line 93 of file swscale.c.

Referenced by sws_init_swscale().

◆ hScale8To15_c()

static void hScale8To15_c	(	SwsContext *	c,
		int16_t *	dst,
		int	dstW,
		const uint8_t *	src,
		const int16_t *	filter,
		const int32_t *	filterPos,
		int	filterSize
	)

static

Definition at line 119 of file swscale.c.

Referenced by sws_init_swscale().

◆ hScale8To19_c()

static void hScale8To19_c	(	SwsContext *	c,
		int16_t *	_dst,
		int	dstW,
		const uint8_t *	src,
		const int16_t *	filter,
		const int32_t *	filterPos,
		int	filterSize
	)

static

Definition at line 135 of file swscale.c.

Referenced by sws_init_swscale().

◆ chrRangeToJpeg_c()

static void chrRangeToJpeg_c	(	int16_t *	dstU,
		int16_t *	dstV,
		int	width
	)

static

Definition at line 154 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ chrRangeFromJpeg_c()

static void chrRangeFromJpeg_c	(	int16_t *	dstU,
		int16_t *	dstV,
		int	width
	)

static

Definition at line 163 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ lumRangeToJpeg_c()

static void lumRangeToJpeg_c	(	int16_t *	dst,
		int	width
	)

static

Definition at line 172 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ lumRangeFromJpeg_c()

static void lumRangeFromJpeg_c	(	int16_t *	dst,
		int	width
	)

static

Definition at line 179 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ chrRangeToJpeg16_c()

static void chrRangeToJpeg16_c	(	int16_t *	_dstU,
		int16_t *	_dstV,
		int	width
	)

static

Definition at line 186 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ chrRangeFromJpeg16_c()

static void chrRangeFromJpeg16_c	(	int16_t *	_dstU,
		int16_t *	_dstV,
		int	width
	)

static

Definition at line 197 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ lumRangeToJpeg16_c()

static void lumRangeToJpeg16_c	(	int16_t *	_dst,
		int	width
	)

static

Definition at line 208 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ lumRangeFromJpeg16_c()

static void lumRangeFromJpeg16_c	(	int16_t *	_dst,
		int	width
	)

static

Definition at line 217 of file swscale.c.

Referenced by ff_sws_init_range_convert().

◆ swscale()

static int swscale	(	SwsContext *	c,
		const uint8_t *	src[],
		int	srcStride[],
		int	srcSliceY,
		int	srcSliceH,
		uint8_t *	dst[],
		int	dstStride[]
	)

static

Definition at line 231 of file swscale.c.

Referenced by ff_getSwsFunc(), ffprobe_show_library_versions(), and print_all_libs_info().

◆ ff_sws_init_range_convert()

av_cold void ff_sws_init_range_convert ( SwsContext * c )

Definition at line 534 of file swscale.c.

Referenced by sws_init_swscale(), and sws_setColorspaceDetails().

◆ sws_init_swscale()

static av_cold void sws_init_swscale ( SwsContext * c )

static

Definition at line 559 of file swscale.c.

Referenced by ff_getSwsFunc().

◆ ff_getSwsFunc()

SwsFunc ff_getSwsFunc ( SwsContext * c )

Return function pointer to fastest main scaler path function depending on architecture and available optimizations.

Definition at line 592 of file swscale.c.

Referenced by sws_init_context(), and usePal().

◆ reset_ptr()

static void reset_ptr	(	const uint8_t *	src[],
		enum AVPixelFormat	format
	)

static

Definition at line 608 of file swscale.c.

Referenced by sws_scale().

◆ check_image_pointers()

static int check_image_pointers	(	const uint8_t *const	data[4],
		enum AVPixelFormat	pix_fmt,
		const int	linesizes[4]
	)

static

Definition at line 620 of file swscale.c.

Referenced by sws_scale().

◆ xyz12Torgb48()

static void xyz12Torgb48	(	struct SwsContext *	c,
		uint16_t *	dst,
		const uint16_t *	src,
		int	stride,
		int	h
	)

static

Definition at line 637 of file swscale.c.

Referenced by sws_scale().

◆ rgb48Toxyz12()

static void rgb48Toxyz12	(	struct SwsContext *	c,
		uint16_t *	dst,
		const uint16_t *	src,
		int	stride,
		int	h
	)

static

Definition at line 693 of file swscale.c.

Referenced by sws_scale().

Variable Documentation

◆ ff_dither_8x8_128

const uint8_t ff_dither_8x8_128[9][8]

Initial value:

= {
    {  36, 68,  60, 92,  34, 66,  58, 90, },
    { 100,  4, 124, 28,  98,  2, 122, 26, },
    {  52, 84,  44, 76,  50, 82,  42, 74, },
    { 116, 20, 108, 12, 114, 18, 106, 10, },
    {  32, 64,  56, 88,  38, 70,  62, 94, },
    {  96,  0, 120, 24, 102,  6, 126, 30, },
    {  48, 80,  40, 72,  54, 86,  46, 78, },
    { 112, 16, 104,  8, 118, 22, 110, 14, },
    {  36, 68,  60, 92,  34, 66,  58, 90, },
}

Definition at line 39 of file swscale.c.

Referenced by swscale(), and usePal().

◆ sws_pb_64

const uint8_t sws_pb_64[8]

static

Initial value:

= {
    64, 64, 64, 64, 64, 64, 64, 64
}

Definition at line 51 of file swscale.c.

Referenced by swscale().

Macros

Functions

Variables

Macro Definition Documentation

◆ DEBUG_SWSCALE_BUFFERS

◆ DEBUG_BUFFERS

◆ RGB2YUV_SHIFT

◆ BY

◆ BV

◆ BU

◆ GY

◆ GV

◆ GU

◆ RY

◆ RV

◆ RU

Function Documentation

◆ fillPlane()

◆ hScale16To19_c()

◆ hScale16To15_c()

◆ hScale8To15_c()

◆ hScale8To19_c()

◆ chrRangeToJpeg_c()

◆ chrRangeFromJpeg_c()

◆ lumRangeToJpeg_c()

◆ lumRangeFromJpeg_c()

◆ chrRangeToJpeg16_c()

◆ chrRangeFromJpeg16_c()

◆ lumRangeToJpeg16_c()

◆ lumRangeFromJpeg16_c()

◆ swscale()

◆ ff_sws_init_range_convert()

◆ sws_init_swscale()

◆ ff_getSwsFunc()

◆ reset_ptr()

◆ check_image_pointers()

◆ xyz12Torgb48()

◆ rgb48Toxyz12()

Variable Documentation

◆ ff_dither_8x8_128

◆ sws_pb_64