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swscale_internal.h File Reference
#include "config.h"
#include "version.h"
#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/pixdesc.h"

Go to the source code of this file.

Data Structures

struct  SwsContext
 

Macros

#define STR(s)   AV_TOSTRING(s)
 
#define YUVRGB_TABLE_HEADROOM   128
 
#define MAX_FILTER_SIZE   SWS_MAX_FILTER_SIZE
 
#define DITHER1XBPP
 
#define ALT32_CORR   1
 
#define APCK_PTR2   4
 
#define APCK_COEF   8
 
#define APCK_SIZE   16
 
#define RY_IDX   0
 
#define GY_IDX   1
 
#define BY_IDX   2
 
#define RU_IDX   3
 
#define GU_IDX   4
 
#define BU_IDX   5
 
#define RV_IDX   6
 
#define GV_IDX   7
 
#define BV_IDX   8
 
#define RGB2YUV_SHIFT   15
 
#define RED_DITHER   "0*8"
 
#define GREEN_DITHER   "1*8"
 
#define BLUE_DITHER   "2*8"
 
#define Y_COEFF   "3*8"
 
#define VR_COEFF   "4*8"
 
#define UB_COEFF   "5*8"
 
#define VG_COEFF   "6*8"
 
#define UG_COEFF   "7*8"
 
#define Y_OFFSET   "8*8"
 
#define U_OFFSET   "9*8"
 
#define V_OFFSET   "10*8"
 
#define LUM_MMX_FILTER_OFFSET   "11*8"
 
#define CHR_MMX_FILTER_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)
 
#define DSTW_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2"
 
#define ESP_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+8"
 
#define VROUNDER_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+16"
 
#define U_TEMP   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+24"
 
#define V_TEMP   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+32"
 
#define Y_TEMP   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+40"
 
#define ALP_MMX_FILTER_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+48"
 
#define UV_OFF_PX   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+48"
 
#define UV_OFF_BYTE   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+56"
 
#define DITHER16   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+64"
 
#define DITHER32   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+80"
 
#define DITHER32_INT   (11*8+4*4*MAX_FILTER_SIZE*3+80)
 
#define XYZ_GAMMA   (2.6f)
 
#define RGB_GAMMA   (2.2f)
 
#define isNBPS(x)   is9_OR_10BPS(x)
 
#define isGray(x)
 
#define isRGBinInt(x)
 
#define isBGRinInt(x)
 
#define isRGBinBytes(x)
 
#define isBGRinBytes(x)
 
#define isBayer(x)
 
#define isAnyRGB(x)
 
#define isPacked(x)
 
#define FILL(wfunc)
 

Typedefs

typedef int(* SwsFunc )(struct SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
 
typedef void(* yuv2planar1_fn )(const int16_t *src, uint8_t *dest, int dstW, const uint8_t *dither, int offset)
 Write one line of horizontally scaled data to planar output without any additional vertical scaling (or point-scaling).
 
typedef void(* yuv2planarX_fn )(const int16_t *filter, int filterSize, const int16_t **src, uint8_t *dest, int dstW, const uint8_t *dither, int offset)
 Write one line of horizontally scaled data to planar output with multi-point vertical scaling between input pixels.
 
typedef void(* yuv2interleavedX_fn )(struct SwsContext *c, const int16_t *chrFilter, int chrFilterSize, const int16_t **chrUSrc, const int16_t **chrVSrc, uint8_t *dest, int dstW)
 Write one line of horizontally scaled chroma to interleaved output with multi-point vertical scaling between input pixels.
 
typedef void(* yuv2packed1_fn )(struct SwsContext *c, const int16_t *lumSrc, const int16_t *chrUSrc[2], const int16_t *chrVSrc[2], const int16_t *alpSrc, uint8_t *dest, int dstW, int uvalpha, int y)
 Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB output without any additional vertical scaling (or point-scaling).
 
typedef void(* yuv2packed2_fn )(struct SwsContext *c, const int16_t *lumSrc[2], const int16_t *chrUSrc[2], const int16_t *chrVSrc[2], const int16_t *alpSrc[2], uint8_t *dest, int dstW, int yalpha, int uvalpha, int y)
 Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB output by doing bilinear scaling between two input lines.
 
typedef void(* yuv2packedX_fn )(struct SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, const int16_t *chrFilter, const int16_t **chrUSrc, const int16_t **chrVSrc, int chrFilterSize, const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
 Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB output by doing multi-point vertical scaling between input pixels.
 
typedef void(* yuv2anyX_fn )(struct SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, const int16_t *chrFilter, const int16_t **chrUSrc, const int16_t **chrVSrc, int chrFilterSize, const int16_t **alpSrc, uint8_t **dest, int dstW, int y)
 Write one line of horizontally scaled Y/U/V/A to YUV/RGB output by doing multi-point vertical scaling between input pixels.
 

Enumerations

enum  SwsDither {
  SWS_DITHER_NONE = 0, SWS_DITHER_AUTO, SWS_DITHER_BAYER, SWS_DITHER_ED,
  SWS_DITHER_A_DITHER, SWS_DITHER_X_DITHER, NB_SWS_DITHER
}
 

Functions

SwsFunc ff_yuv2rgb_get_func_ptr (SwsContext *c)
 
int ff_yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
 
void ff_yuv2rgb_init_tables_ppc (SwsContext *c, const int inv_table[4], int brightness, int contrast, int saturation)
 
void updateMMXDitherTables (SwsContext *c, int dstY, int lumBufIndex, int chrBufIndex, int lastInLumBuf, int lastInChrBuf)
 
av_cold void ff_sws_init_range_convert (SwsContext *c)
 
SwsFunc ff_yuv2rgb_init_x86 (SwsContext *c)
 
SwsFunc ff_yuv2rgb_init_ppc (SwsContext *c)
 
static av_always_inline int is16BPS (enum AVPixelFormat pix_fmt)
 
static av_always_inline int is9_OR_10BPS (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isBE (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isYUV (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isPlanarYUV (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isRGB (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isALPHA (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isPlanar (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isPackedRGB (enum AVPixelFormat pix_fmt)
 
static av_always_inline int isPlanarRGB (enum AVPixelFormat pix_fmt)
 
static av_always_inline int usePal (enum AVPixelFormat pix_fmt)
 
void ff_get_unscaled_swscale (SwsContext *c)
 Set c->swscale to an unscaled converter if one exists for the specific source and destination formats, bit depths, flags, etc.
 
void ff_get_unscaled_swscale_ppc (SwsContext *c)
 
void ff_get_unscaled_swscale_arm (SwsContext *c)
 
SwsFunc ff_getSwsFunc (SwsContext *c)
 Return function pointer to fastest main scaler path function depending on architecture and available optimizations.
 
void ff_sws_init_input_funcs (SwsContext *c)
 
void ff_sws_init_output_funcs (SwsContext *c, yuv2planar1_fn *yuv2plane1, yuv2planarX_fn *yuv2planeX, yuv2interleavedX_fn *yuv2nv12cX, yuv2packed1_fn *yuv2packed1, yuv2packed2_fn *yuv2packed2, yuv2packedX_fn *yuv2packedX, yuv2anyX_fn *yuv2anyX)
 
void ff_sws_init_swscale_ppc (SwsContext *c)
 
void ff_sws_init_swscale_x86 (SwsContext *c)
 
void ff_hyscale_fast_c (SwsContext *c, int16_t *dst, int dstWidth, const uint8_t *src, int srcW, int xInc)
 
void ff_hcscale_fast_c (SwsContext *c, int16_t *dst1, int16_t *dst2, int dstWidth, const uint8_t *src1, const uint8_t *src2, int srcW, int xInc)
 
int ff_init_hscaler_mmxext (int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
 
void ff_hyscale_fast_mmxext (SwsContext *c, int16_t *dst, int dstWidth, const uint8_t *src, int srcW, int xInc)
 
void ff_hcscale_fast_mmxext (SwsContext *c, int16_t *dst1, int16_t *dst2, int dstWidth, const uint8_t *src1, const uint8_t *src2, int srcW, int xInc)
 
static void fillPlane16 (uint8_t *plane, int stride, int width, int height, int y, int alpha, int bits, const int big_endian)
 

Variables

const uint64_t ff_dither4 [2]
 
const uint64_t ff_dither8 [2]
 
const uint8_t ff_dither_2x2_4 [3][8]
 
const uint8_t ff_dither_2x2_8 [3][8]
 
const uint8_t ff_dither_4x4_16 [5][8]
 
const uint8_t ff_dither_8x8_32 [9][8]
 
const uint8_t ff_dither_8x8_73 [9][8]
 
const uint8_t ff_dither_8x8_128 [9][8]
 
const uint8_t ff_dither_8x8_220 [9][8]
 
const int32_t ff_yuv2rgb_coeffs [8][4]
 
const AVClass sws_context_class
 

Macro Definition Documentation

#define STR (   s)    AV_TOSTRING(s)

Definition at line 40 of file swscale_internal.h.

Referenced by av_register_all().

#define YUVRGB_TABLE_HEADROOM   128

Definition at line 42 of file swscale_internal.h.

Referenced by fill_gv_table(), fill_table(), yuv2rgb_1_c_template(), yuv2rgb_2_c_template(), and yuv2rgb_X_c_template().

#define MAX_FILTER_SIZE   SWS_MAX_FILTER_SIZE

Definition at line 44 of file swscale_internal.h.

Referenced by initFilter().

#define DITHER1XBPP

Definition at line 46 of file swscale_internal.h.

Referenced by sws_init_context().

#define ALT32_CORR   1

Definition at line 51 of file swscale_internal.h.

Referenced by findRgbConvFn(), and rgbToRgbWrapper().

#define APCK_PTR2   4

Definition at line 59 of file swscale_internal.h.

#define APCK_COEF   8

Definition at line 60 of file swscale_internal.h.

#define APCK_SIZE   16

Definition at line 61 of file swscale_internal.h.

Referenced by initFilter().

#define RY_IDX   0

Definition at line 376 of file swscale_internal.h.

Referenced by bgr24ToY_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), planar_rgb16_to_y(), planar_rgb_to_y(), rgb24ToY_c(), rgb48funcs(), rgb64funcs(), and rgb64ToY_c_template().

#define GY_IDX   1

Definition at line 377 of file swscale_internal.h.

Referenced by bgr24ToY_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), planar_rgb16_to_y(), planar_rgb_to_y(), rgb24ToY_c(), rgb48funcs(), rgb64funcs(), and rgb64ToY_c_template().

#define BY_IDX   2

Definition at line 378 of file swscale_internal.h.

Referenced by bgr24ToY_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), planar_rgb16_to_y(), planar_rgb_to_y(), rgb24ToY_c(), rgb48funcs(), rgb64funcs(), and rgb64ToY_c_template().

#define RU_IDX   3

Definition at line 379 of file swscale_internal.h.

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb_to_uv(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64ToUV_c_template(), and rgb64ToUV_half_c_template().

#define GU_IDX   4

Definition at line 380 of file swscale_internal.h.

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb_to_uv(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64ToUV_c_template(), and rgb64ToUV_half_c_template().

#define BU_IDX   5

Definition at line 381 of file swscale_internal.h.

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb_to_uv(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64ToUV_c_template(), and rgb64ToUV_half_c_template().

#define RV_IDX   6

Definition at line 382 of file swscale_internal.h.

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb_to_uv(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64ToUV_c_template(), and rgb64ToUV_half_c_template().

#define GV_IDX   7

Definition at line 383 of file swscale_internal.h.

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb_to_uv(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64ToUV_c_template(), and rgb64ToUV_half_c_template().

#define BV_IDX   8

Definition at line 384 of file swscale_internal.h.

Referenced by bgr24ToUV_c(), bgr24ToUV_half_c(), ff_rgb24toyv12_c(), fill_rgb2yuv_table(), gbr24pToUV_half_c(), planar_rgb16_to_uv(), planar_rgb_to_uv(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb64ToUV_c_template(), and rgb64ToUV_half_c_template().

#define RGB2YUV_SHIFT   15

Definition at line 385 of file swscale_internal.h.

#define RED_DITHER   "0*8"

Definition at line 410 of file swscale_internal.h.

Referenced by yuv2rgb555_1_TMPL(), yuv2rgb555_2_TMPL(), yuv2rgb555_X_ar_TMPL(), yuv2rgb555_X_TMPL(), yuv2rgb565_1_TMPL(), yuv2rgb565_2_TMPL(), yuv2rgb565_X_ar_TMPL(), and yuv2rgb565_X_TMPL().

#define GREEN_DITHER   "1*8"

Definition at line 411 of file swscale_internal.h.

Referenced by yuv2rgb555_1_TMPL(), yuv2rgb555_2_TMPL(), yuv2rgb555_X_ar_TMPL(), yuv2rgb555_X_TMPL(), yuv2rgb565_1_TMPL(), yuv2rgb565_2_TMPL(), yuv2rgb565_X_ar_TMPL(), and yuv2rgb565_X_TMPL().

#define BLUE_DITHER   "2*8"

Definition at line 412 of file swscale_internal.h.

Referenced by yuv2rgb555_1_TMPL(), yuv2rgb555_2_TMPL(), yuv2rgb555_X_ar_TMPL(), yuv2rgb555_X_TMPL(), yuv2rgb565_1_TMPL(), yuv2rgb565_2_TMPL(), yuv2rgb565_X_ar_TMPL(), and yuv2rgb565_X_TMPL().

#define Y_COEFF   "3*8"

Definition at line 413 of file swscale_internal.h.

#define VR_COEFF   "4*8"

Definition at line 414 of file swscale_internal.h.

#define UB_COEFF   "5*8"

Definition at line 415 of file swscale_internal.h.

#define VG_COEFF   "6*8"

Definition at line 416 of file swscale_internal.h.

#define UG_COEFF   "7*8"

Definition at line 417 of file swscale_internal.h.

#define Y_OFFSET   "8*8"

Definition at line 418 of file swscale_internal.h.

#define U_OFFSET   "9*8"

Definition at line 419 of file swscale_internal.h.

#define V_OFFSET   "10*8"

Definition at line 420 of file swscale_internal.h.

#define LUM_MMX_FILTER_OFFSET   "11*8"

Definition at line 421 of file swscale_internal.h.

#define CHR_MMX_FILTER_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)

Definition at line 422 of file swscale_internal.h.

#define DSTW_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2"

Definition at line 423 of file swscale_internal.h.

Referenced by yuv2bgr24_1_TMPL(), yuv2bgr24_2_TMPL(), yuv2rgb32_1_TMPL(), yuv2rgb32_2_TMPL(), yuv2rgb555_1_TMPL(), yuv2rgb555_2_TMPL(), yuv2rgb565_1_TMPL(), yuv2rgb565_2_TMPL(), yuv2yuyv422_1_TMPL(), and yuv2yuyv422_2_TMPL().

#define ESP_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+8"

Definition at line 424 of file swscale_internal.h.

Referenced by yuv2bgr24_1_TMPL(), yuv2bgr24_2_TMPL(), yuv2rgb32_1_TMPL(), yuv2rgb32_2_TMPL(), yuv2rgb555_1_TMPL(), yuv2rgb555_2_TMPL(), yuv2rgb565_1_TMPL(), yuv2rgb565_2_TMPL(), yuv2yuyv422_1_TMPL(), and yuv2yuyv422_2_TMPL().

#define VROUNDER_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+16"

Definition at line 425 of file swscale_internal.h.

#define U_TEMP   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+24"

Definition at line 426 of file swscale_internal.h.

Referenced by yuv2rgb32_2_TMPL(), and yuv2rgb32_X_ar_TMPL().

#define V_TEMP   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+32"

Definition at line 427 of file swscale_internal.h.

Referenced by yuv2rgb32_2_TMPL(), and yuv2rgb32_X_ar_TMPL().

#define Y_TEMP   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+40"

Definition at line 428 of file swscale_internal.h.

Referenced by yuv2rgb32_X_ar_TMPL().

#define ALP_MMX_FILTER_OFFSET   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+48"

Definition at line 429 of file swscale_internal.h.

Referenced by yuv2rgb32_X_ar_TMPL(), and yuv2rgb32_X_TMPL().

#define UV_OFF_PX   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+48"

Definition at line 430 of file swscale_internal.h.

#define UV_OFF_BYTE   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+56"

Definition at line 431 of file swscale_internal.h.

#define DITHER16   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+64"

Definition at line 432 of file swscale_internal.h.

#define DITHER32   "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+80"

Definition at line 433 of file swscale_internal.h.

#define DITHER32_INT   (11*8+4*4*MAX_FILTER_SIZE*3+80)

Definition at line 434 of file swscale_internal.h.

Referenced by sws_alloc_context().

#define XYZ_GAMMA   (2.6f)

Definition at line 481 of file swscale_internal.h.

Referenced by fill_xyztables().

#define RGB_GAMMA   (2.2f)

Definition at line 482 of file swscale_internal.h.

Referenced by fill_xyztables().

#define isNBPS (   x)    is9_OR_10BPS(x)

Definition at line 636 of file swscale_internal.h.

Referenced by planarCopyWrapper(), rgb9plus_planar_funcs(), sws_init_context(), and swscale().

#define isGray (   x)
Value:
((x) == AV_PIX_FMT_GRAY8 || \
(x) == AV_PIX_FMT_YA8 || \
(x) == AV_PIX_FMT_GRAY16BE || \
(x) == AV_PIX_FMT_GRAY16LE || \
(x) == AV_PIX_FMT_YA16BE || \
(x) == AV_PIX_FMT_YA16LE)

Definition at line 671 of file swscale_internal.h.

#define isRGBinInt (   x)
Value:
( \
(x) == AV_PIX_FMT_RGB48BE || \
(x) == AV_PIX_FMT_RGB48LE || \
(x) == AV_PIX_FMT_RGB32 || \
(x) == AV_PIX_FMT_RGB32_1 || \
(x) == AV_PIX_FMT_RGB24 || \
(x) == AV_PIX_FMT_RGB565BE || \
(x) == AV_PIX_FMT_RGB565LE || \
(x) == AV_PIX_FMT_RGB555BE || \
(x) == AV_PIX_FMT_RGB555LE || \
(x) == AV_PIX_FMT_RGB444BE || \
(x) == AV_PIX_FMT_RGB444LE || \
(x) == AV_PIX_FMT_RGB8 || \
(x) == AV_PIX_FMT_RGB4 || \
(x) == AV_PIX_FMT_RGB4_BYTE || \
(x) == AV_PIX_FMT_RGBA64BE || \
(x) == AV_PIX_FMT_RGBA64LE || \
(x) == AV_PIX_FMT_MONOBLACK || \
(x) == AV_PIX_FMT_MONOWHITE \
)

Definition at line 680 of file swscale_internal.h.

Referenced by findRgbConvFn().

#define isBGRinInt (   x)
Value:
( \
(x) == AV_PIX_FMT_BGR48BE || \
(x) == AV_PIX_FMT_BGR48LE || \
(x) == AV_PIX_FMT_BGR32 || \
(x) == AV_PIX_FMT_BGR32_1 || \
(x) == AV_PIX_FMT_BGR24 || \
(x) == AV_PIX_FMT_BGR565BE || \
(x) == AV_PIX_FMT_BGR565LE || \
(x) == AV_PIX_FMT_BGR555BE || \
(x) == AV_PIX_FMT_BGR555LE || \
(x) == AV_PIX_FMT_BGR444BE || \
(x) == AV_PIX_FMT_BGR444LE || \
(x) == AV_PIX_FMT_BGR8 || \
(x) == AV_PIX_FMT_BGR4 || \
(x) == AV_PIX_FMT_BGR4_BYTE || \
(x) == AV_PIX_FMT_BGRA64BE || \
(x) == AV_PIX_FMT_BGRA64LE || \
(x) == AV_PIX_FMT_MONOBLACK || \
(x) == AV_PIX_FMT_MONOWHITE \
)

Definition at line 701 of file swscale_internal.h.

Referenced by findRgbConvFn().

#define isRGBinBytes (   x)
Value:
( \
(x) == AV_PIX_FMT_RGB48BE \
|| (x) == AV_PIX_FMT_RGB48LE \
|| (x) == AV_PIX_FMT_RGBA64BE \
|| (x) == AV_PIX_FMT_RGBA64LE \
|| (x) == AV_PIX_FMT_RGBA \
|| (x) == AV_PIX_FMT_ARGB \
|| (x) == AV_PIX_FMT_RGB24 \
)

Definition at line 723 of file swscale_internal.h.

#define isBGRinBytes (   x)
Value:
( \
(x) == AV_PIX_FMT_BGR48BE \
|| (x) == AV_PIX_FMT_BGR48LE \
|| (x) == AV_PIX_FMT_BGRA64BE \
|| (x) == AV_PIX_FMT_BGRA64LE \
|| (x) == AV_PIX_FMT_BGRA \
|| (x) == AV_PIX_FMT_ABGR \
|| (x) == AV_PIX_FMT_BGR24 \
)

Definition at line 732 of file swscale_internal.h.

#define isBayer (   x)
Value:
( \
(x)==AV_PIX_FMT_BAYER_BGGR8 \
|| (x)==AV_PIX_FMT_BAYER_BGGR16LE \
|| (x)==AV_PIX_FMT_BAYER_BGGR16BE \
|| (x)==AV_PIX_FMT_BAYER_RGGB8 \
|| (x)==AV_PIX_FMT_BAYER_RGGB16LE \
|| (x)==AV_PIX_FMT_BAYER_RGGB16BE \
|| (x)==AV_PIX_FMT_BAYER_GBRG8 \
|| (x)==AV_PIX_FMT_BAYER_GBRG16LE \
|| (x)==AV_PIX_FMT_BAYER_GBRG16BE \
|| (x)==AV_PIX_FMT_BAYER_GRBG8 \
|| (x)==AV_PIX_FMT_BAYER_GRBG16LE \
|| (x)==AV_PIX_FMT_BAYER_GRBG16BE \
)

Definition at line 742 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale().

#define isAnyRGB (   x)
Value:
( \
isBayer(x) || \
isRGBinInt(x) || \
isBGRinInt(x) || \
isRGB(x) \
)

Definition at line 757 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale(), ff_sws_init_range_convert(), hScale16To15_c(), hScale16To19_c(), and sws_init_context().

#define isPacked (   x)
Value:
( \
(x)==AV_PIX_FMT_PAL8 \
|| (x)==AV_PIX_FMT_YUYV422 \
|| (x)==AV_PIX_FMT_YVYU422 \
|| (x)==AV_PIX_FMT_UYVY422 \
|| (x)==AV_PIX_FMT_YA8 \
|| (x)==AV_PIX_FMT_YA16LE \
|| (x)==AV_PIX_FMT_YA16BE \
|| isRGBinInt(x) \
|| isBGRinInt(x) \
)

Definition at line 775 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale(), and swscale().

#define FILL (   wfunc)
Value:
for (j = 0; j < width; j++) {\
wfunc(ptr+2*j, v);\
}

Referenced by fillPlane16().

Typedef Documentation

typedef int(* SwsFunc)(struct SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])

Definition at line 76 of file swscale_internal.h.

typedef void(* yuv2planar1_fn)(const int16_t *src, uint8_t *dest, int dstW, const uint8_t *dither, int offset)

Write one line of horizontally scaled data to planar output without any additional vertical scaling (or point-scaling).

Parameters
srcscaled source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
destpointer to the output plane. For >8bit output, this is in uint16_t
dstWwidth of destination in pixels
ditherordered dither array of type int16_t and size 8
offsetDither offset

Definition at line 92 of file swscale_internal.h.

typedef void(* yuv2planarX_fn)(const int16_t *filter, int filterSize, const int16_t **src, uint8_t *dest, int dstW, const uint8_t *dither, int offset)

Write one line of horizontally scaled data to planar output with multi-point vertical scaling between input pixels.

Parameters
filtervertical luma/alpha scaling coefficients, 12bit [0,4096]
srcscaled luma (Y) or alpha (A) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
filterSizenumber of vertical input lines to scale
destpointer to output plane. For >8bit output, this is in uint16_t
dstWwidth of destination pixels
offsetDither offset

Definition at line 108 of file swscale_internal.h.

typedef void(* yuv2interleavedX_fn)(struct SwsContext *c, const int16_t *chrFilter, int chrFilterSize, const int16_t **chrUSrc, const int16_t **chrVSrc, uint8_t *dest, int dstW)

Write one line of horizontally scaled chroma to interleaved output with multi-point vertical scaling between input pixels.

Parameters
cSWS scaling context
chrFiltervertical chroma scaling coefficients, 12bit [0,4096]
chrUSrcscaled chroma (U) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrVSrcscaled chroma (V) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrFilterSizenumber of vertical chroma input lines to scale
destpointer to the output plane. For >8bit output, this is in uint16_t
dstWwidth of chroma planes

Definition at line 127 of file swscale_internal.h.

typedef void(* yuv2packed1_fn)(struct SwsContext *c, const int16_t *lumSrc, const int16_t *chrUSrc[2], const int16_t *chrVSrc[2], const int16_t *alpSrc, uint8_t *dest, int dstW, int uvalpha, int y)

Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB output without any additional vertical scaling (or point-scaling).

Note that this function may do chroma scaling, see the "uvalpha" argument.

Parameters
cSWS scaling context
lumSrcscaled luma (Y) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrUSrcscaled chroma (U) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrVSrcscaled chroma (V) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
alpSrcscaled alpha (A) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
destpointer to the output plane. For 16bit output, this is uint16_t
dstWwidth of lumSrc and alpSrc in pixels, number of pixels to write into dest[]
uvalphachroma scaling coefficient for the second line of chroma pixels, either 2048 or 0. If 0, one chroma input is used for 2 output pixels (or if the SWS_FLAG_FULL_CHR_INT flag is set, it generates 1 output pixel). If 2048, two chroma input pixels should be averaged for 2 output pixels (this only happens if SWS_FLAG_FULL_CHR_INT is not set)
yvertical line number for this output. This does not need to be used to calculate the offset in the destination, but can be used to generate comfort noise using dithering for some output formats.

Definition at line 163 of file swscale_internal.h.

typedef void(* yuv2packed2_fn)(struct SwsContext *c, const int16_t *lumSrc[2], const int16_t *chrUSrc[2], const int16_t *chrVSrc[2], const int16_t *alpSrc[2], uint8_t *dest, int dstW, int yalpha, int uvalpha, int y)

Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB output by doing bilinear scaling between two input lines.

Parameters
cSWS scaling context
lumSrcscaled luma (Y) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrUSrcscaled chroma (U) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrVSrcscaled chroma (V) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
alpSrcscaled alpha (A) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
destpointer to the output plane. For 16bit output, this is uint16_t
dstWwidth of lumSrc and alpSrc in pixels, number of pixels to write into dest[]
yalphaluma/alpha scaling coefficients for the second input line. The first line's coefficients can be calculated by using 4096 - yalpha
uvalphachroma scaling coefficient for the second input line. The first line's coefficients can be calculated by using 4096 - uvalpha
yvertical line number for this output. This does not need to be used to calculate the offset in the destination, but can be used to generate comfort noise using dithering for some output formats.

Definition at line 196 of file swscale_internal.h.

typedef void(* yuv2packedX_fn)(struct SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, const int16_t *chrFilter, const int16_t **chrUSrc, const int16_t **chrVSrc, int chrFilterSize, const int16_t **alpSrc, uint8_t *dest, int dstW, int y)

Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB output by doing multi-point vertical scaling between input pixels.

Parameters
cSWS scaling context
lumFiltervertical luma/alpha scaling coefficients, 12bit [0,4096]
lumSrcscaled luma (Y) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
lumFilterSizenumber of vertical luma/alpha input lines to scale
chrFiltervertical chroma scaling coefficients, 12bit [0,4096]
chrUSrcscaled chroma (U) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrVSrcscaled chroma (V) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrFilterSizenumber of vertical chroma input lines to scale
alpSrcscaled alpha (A) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
destpointer to the output plane. For 16bit output, this is uint16_t
dstWwidth of lumSrc and alpSrc in pixels, number of pixels to write into dest[]
yvertical line number for this output. This does not need to be used to calculate the offset in the destination, but can be used to generate comfort noise using dithering or some output formats.

Definition at line 228 of file swscale_internal.h.

typedef void(* yuv2anyX_fn)(struct SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, const int16_t *chrFilter, const int16_t **chrUSrc, const int16_t **chrVSrc, int chrFilterSize, const int16_t **alpSrc, uint8_t **dest, int dstW, int y)

Write one line of horizontally scaled Y/U/V/A to YUV/RGB output by doing multi-point vertical scaling between input pixels.

Parameters
cSWS scaling context
lumFiltervertical luma/alpha scaling coefficients, 12bit [0,4096]
lumSrcscaled luma (Y) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
lumFilterSizenumber of vertical luma/alpha input lines to scale
chrFiltervertical chroma scaling coefficients, 12bit [0,4096]
chrUSrcscaled chroma (U) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrVSrcscaled chroma (V) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
chrFilterSizenumber of vertical chroma input lines to scale
alpSrcscaled alpha (A) source data, 15bit for 8-10bit output, 19-bit for 16bit output (in int32_t)
destpointer to the output planes. For 16bit output, this is uint16_t
dstWwidth of lumSrc and alpSrc in pixels, number of pixels to write into dest[]
yvertical line number for this output. This does not need to be used to calculate the offset in the destination, but can be used to generate comfort noise using dithering or some output formats.

Definition at line 262 of file swscale_internal.h.

Enumeration Type Documentation

enum SwsDither
Enumerator:
SWS_DITHER_NONE 
SWS_DITHER_AUTO 
SWS_DITHER_BAYER 
SWS_DITHER_ED 
SWS_DITHER_A_DITHER 
SWS_DITHER_X_DITHER 
NB_SWS_DITHER 

Definition at line 66 of file swscale_internal.h.

Function Documentation

SwsFunc ff_yuv2rgb_get_func_ptr ( SwsContext *  c)

Definition at line 600 of file yuv2rgb.c.

Referenced by ff_get_unscaled_swscale().

int ff_yuv2rgb_c_init_tables ( SwsContext *  c,
const int  inv_table[4],
int  fullRange,
int  brightness,
int  contrast,
int  saturation 
)

Definition at line 695 of file yuv2rgb.c.

Referenced by sws_setColorspaceDetails().

void ff_yuv2rgb_init_tables_ppc ( SwsContext *  c,
const int  inv_table[4],
int  brightness,
int  contrast,
int  saturation 
)

Definition at line 600 of file yuv2rgb_altivec.c.

Referenced by sws_setColorspaceDetails().

void updateMMXDitherTables ( SwsContext *  c,
int  dstY,
int  lumBufIndex,
int  chrBufIndex,
int  lastInLumBuf,
int  lastInChrBuf 
)

Referenced by swscale().

av_cold void ff_sws_init_range_convert ( SwsContext *  c)

Definition at line 674 of file swscale.c.

Referenced by sws_init_swscale(), and sws_setColorspaceDetails().

SwsFunc ff_yuv2rgb_init_x86 ( SwsContext *  c)

Definition at line 72 of file yuv2rgb.c.

Referenced by ff_yuv2rgb_get_func_ptr().

SwsFunc ff_yuv2rgb_init_ppc ( SwsContext *  c)

Definition at line 537 of file yuv2rgb_altivec.c.

Referenced by ff_yuv2rgb_get_func_ptr().

static av_always_inline int is16BPS ( enum AVPixelFormat  pix_fmt)
static

Definition at line 622 of file swscale_internal.h.

Referenced by ff_sws_init_output_funcs(), ff_sws_init_swscale_ppc(), planarCopyWrapper(), rgb9plus_planar_funcs(), sws_init_context(), sws_init_swscale_TMPL(), and swscale().

static av_always_inline int is9_OR_10BPS ( enum AVPixelFormat  pix_fmt)
static

Definition at line 629 of file swscale_internal.h.

Referenced by ff_sws_init_output_funcs(), ff_sws_init_swscale_ppc(), sws_init_swscale_TMPL(), and swscale().

static av_always_inline int isBE ( enum AVPixelFormat  pix_fmt)
static

Definition at line 638 of file swscale_internal.h.

Referenced by ff_sws_init_output_funcs(), ff_sws_init_swscale_x86(), planarCopyWrapper(), rgb9plus_planar_funcs(), swscale(), and yuv2gbrp_full_X_c().

static av_always_inline int isYUV ( enum AVPixelFormat  pix_fmt)
static

Definition at line 645 of file swscale_internal.h.

Referenced by isPlanarYUV(), and sws_setColorspaceDetails().

static av_always_inline int isPlanarYUV ( enum AVPixelFormat  pix_fmt)
static

Definition at line 652 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale(), and swscale().

static av_always_inline int isRGB ( enum AVPixelFormat  pix_fmt)
static

Definition at line 659 of file swscale_internal.h.

static av_always_inline int isALPHA ( enum AVPixelFormat  pix_fmt)
static

Definition at line 765 of file swscale_internal.h.

static av_always_inline int isPlanar ( enum AVPixelFormat  pix_fmt)
static

Definition at line 796 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale(), ff_yuv2rgb_c_init_tables(), reset_ptr(), and swscale().

static av_always_inline int isPackedRGB ( enum AVPixelFormat  pix_fmt)
static

Definition at line 803 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale().

static av_always_inline int isPlanarRGB ( enum AVPixelFormat  pix_fmt)
static

Definition at line 810 of file swscale_internal.h.

Referenced by sws_init_context().

static av_always_inline int usePal ( enum AVPixelFormat  pix_fmt)
static

Definition at line 818 of file swscale_internal.h.

Referenced by ff_get_unscaled_swscale(), palToRgbWrapper(), reset_ptr(), sws_scale(), and swscale().

void ff_get_unscaled_swscale ( SwsContext *  c)

Set c->swscale to an unscaled converter if one exists for the specific source and destination formats, bit depths, flags, etc.

Definition at line 1559 of file swscale_unscaled.c.

Referenced by sws_init_context().

void ff_get_unscaled_swscale_ppc ( SwsContext *  c)

Definition at line 187 of file yuv2yuv_altivec.c.

Referenced by ff_get_unscaled_swscale().

void ff_get_unscaled_swscale_arm ( SwsContext *  c)

Definition at line 74 of file swscale_unscaled.c.

SwsFunc ff_getSwsFunc ( SwsContext *  c)

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

Definition at line 732 of file swscale.c.

Referenced by sws_init_context().

void ff_sws_init_input_funcs ( SwsContext *  c)

Referenced by sws_init_swscale().

void ff_sws_init_output_funcs ( SwsContext *  c,
yuv2planar1_fn *  yuv2plane1,
yuv2planarX_fn *  yuv2planeX,
yuv2interleavedX_fn *  yuv2nv12cX,
yuv2packed1_fn *  yuv2packed1,
yuv2packed2_fn *  yuv2packed2,
yuv2packedX_fn *  yuv2packedX,
yuv2anyX_fn *  yuv2anyX 
)

Definition at line 1857 of file output.c.

Referenced by sws_init_swscale(), and swscale().

void ff_sws_init_swscale_ppc ( SwsContext *  c)

Definition at line 290 of file swscale_altivec.c.

Referenced by ff_getSwsFunc().

void ff_sws_init_swscale_x86 ( SwsContext *  c)

Definition at line 378 of file swscale.c.

Referenced by ff_getSwsFunc().

void ff_hyscale_fast_c ( SwsContext *  c,
int16_t *  dst,
int  dstWidth,
const uint8_t *  src,
int  srcW,
int  xInc 
)

Definition at line 23 of file hscale_fast_bilinear.c.

Referenced by sws_init_swscale().

void ff_hcscale_fast_c ( SwsContext *  c,
int16_t *  dst1,
int16_t *  dst2,
int  dstWidth,
const uint8_t *  src1,
const uint8_t *  src2,
int  srcW,
int  xInc 
)

Definition at line 38 of file hscale_fast_bilinear.c.

Referenced by sws_init_swscale().

int ff_init_hscaler_mmxext ( int  dstW,
int  xInc,
uint8_t *  filterCode,
int16_t *  filter,
int32_t *  filterPos,
int  numSplits 
)

Referenced by sws_init_context().

void ff_hyscale_fast_mmxext ( SwsContext *  c,
int16_t *  dst,
int  dstWidth,
const uint8_t *  src,
int  srcW,
int  xInc 
)

Referenced by sws_init_swscale_TMPL().

void ff_hcscale_fast_mmxext ( SwsContext *  c,
int16_t *  dst1,
int16_t *  dst2,
int  dstWidth,
const uint8_t *  src1,
const uint8_t *  src2,
int  srcW,
int  xInc 
)

Referenced by sws_init_swscale_TMPL().

static void fillPlane16 ( uint8_t *  plane,
int  stride,
int  width,
int  height,
int  y,
int  alpha,
int  bits,
const int  big_endian 
)
inlinestatic

Definition at line 881 of file swscale_internal.h.

Referenced by planarCopyWrapper(), and swscale().

Variable Documentation

const uint64_t ff_dither4[2]

Referenced by yuv420_rgb16_TMPL().

const uint64_t ff_dither8[2]

Referenced by yuv420_rgb15_TMPL(), and yuv420_rgb16_TMPL().

const uint8_t ff_dither_2x2_4[3][8]

Definition at line 39 of file output.c.

Referenced by yuv2rgb_write().

const uint8_t ff_dither_2x2_8[3][8]

Definition at line 45 of file output.c.

Referenced by yuv2rgb_write().

const uint8_t ff_dither_4x4_16[5][8]

Definition at line 51 of file output.c.

Referenced by yuv2rgb_write().

const uint8_t ff_dither_8x8_32[9][8]

Definition at line 59 of file output.c.

Referenced by yuv2rgb_write().

const uint8_t ff_dither_8x8_73[9][8]

Definition at line 71 of file output.c.

Referenced by yuv2rgb_write().

const uint8_t ff_dither_8x8_128[9][8]

Definition at line 38 of file swscale.c.

Referenced by swscale().

const uint8_t ff_dither_8x8_220[9][8]

Definition at line 84 of file output.c.

Referenced by yuv2mono_1_c_template(), yuv2mono_2_c_template(), yuv2mono_X_c_template(), and yuv2rgb_write().

const int32_t ff_yuv2rgb_coeffs[8][4]

Definition at line 38 of file yuv2rgb.c.

Referenced by sws_getCoefficients(), and sws_init_context().

const AVClass sws_context_class

Definition at line 82 of file options.c.

Referenced by sws_alloc_context(), and sws_get_class().

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