21 #ifndef SWSCALE_SWSCALE_INTERNAL_H
22 #define SWSCALE_SWSCALE_INTERNAL_H
40 #define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
42 #define YUVRGB_TABLE_HEADROOM 256
44 #define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE
49 #define ALT32_CORR (-1)
64 #define RETCODE_USE_CASCADE -12345
79 int srcStride[],
int srcSliceY,
int srcSliceH,
80 uint8_t *dst[],
int dstStride[]);
130 const int16_t *chrFilter,
132 const int16_t **chrUSrc,
133 const int16_t **chrVSrc,
166 const int16_t *chrUSrc[2],
167 const int16_t *chrVSrc[2],
168 const int16_t *alpSrc,
uint8_t *dest,
169 int dstW,
int uvalpha,
int y);
199 const int16_t *chrUSrc[2],
200 const int16_t *chrVSrc[2],
201 const int16_t *alpSrc[2],
203 int dstW,
int yalpha,
int uvalpha,
int y);
231 const int16_t **lumSrc,
int lumFilterSize,
232 const int16_t *chrFilter,
233 const int16_t **chrUSrc,
234 const int16_t **chrVSrc,
int chrFilterSize,
235 const int16_t **alpSrc,
uint8_t *dest,
265 const int16_t **lumSrc,
int lumFilterSize,
266 const int16_t *chrFilter,
267 const int16_t **chrUSrc,
268 const int16_t **chrVSrc,
int chrFilterSize,
269 const int16_t **alpSrc,
uint8_t **dest,
403 #define RGB2YUV_SHIFT 15
428 #define RED_DITHER "0*8"
429 #define GREEN_DITHER "1*8"
430 #define BLUE_DITHER "2*8"
431 #define Y_COEFF "3*8"
432 #define VR_COEFF "4*8"
433 #define UB_COEFF "5*8"
434 #define VG_COEFF "6*8"
435 #define UG_COEFF "7*8"
436 #define Y_OFFSET "8*8"
437 #define U_OFFSET "9*8"
438 #define V_OFFSET "10*8"
439 #define LUM_MMX_FILTER_OFFSET "11*8"
440 #define CHR_MMX_FILTER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)
441 #define DSTW_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2"
442 #define ESP_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+8"
443 #define VROUNDER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+16"
444 #define U_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+24"
445 #define V_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+32"
446 #define Y_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+40"
447 #define ALP_MMX_FILTER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+48"
448 #define UV_OFF_PX "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+48"
449 #define UV_OFF_BYTE "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+56"
450 #define DITHER16 "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+64"
451 #define DITHER32 "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+80"
452 #define DITHER32_INT (11*8+4*4*MAX_FILTER_SIZE*3+80) // value equal to above, used for checking that the struct hasn't been changed by mistake
486 vector
signed short CY;
487 vector
signed short CRV;
488 vector
signed short CBU;
489 vector
signed short CGU;
490 vector
signed short CGV;
491 vector
signed short OY;
492 vector
unsigned short CSHIFT;
493 vector
signed short *vYCoeffsBank, *vCCoeffsBank;
499 #define XYZ_GAMMA (2.6f)
500 #define RGB_GAMMA (2.2f)
519 int width, uint32_t *pal);
522 int width, uint32_t *pal);
526 int width, uint32_t *pal);
559 int16_t *dst,
int dstWidth,
562 int16_t *dst1, int16_t *dst2,
int dstWidth,
600 const int32_t *filterPos,
int filterSize);
603 const int32_t *filterPos,
int filterSize);
646 #define isNBPS(x) is9_OR_10BPS(x)
678 (!(av_pix_fmt_desc_get(x)->flags & AV_PIX_FMT_FLAG_PAL) && \
679 av_pix_fmt_desc_get(x)->nb_components <= 2)
682 ((x) == AV_PIX_FMT_GRAY8 || \
683 (x) == AV_PIX_FMT_YA8 || \
684 (x) == AV_PIX_FMT_GRAY16BE || \
685 (x) == AV_PIX_FMT_GRAY16LE || \
686 (x) == AV_PIX_FMT_YA16BE || \
687 (x) == AV_PIX_FMT_YA16LE)
690 #define isRGBinInt(x) \
692 (x) == AV_PIX_FMT_RGB48BE || \
693 (x) == AV_PIX_FMT_RGB48LE || \
694 (x) == AV_PIX_FMT_RGB32 || \
695 (x) == AV_PIX_FMT_RGB32_1 || \
696 (x) == AV_PIX_FMT_RGB24 || \
697 (x) == AV_PIX_FMT_RGB565BE || \
698 (x) == AV_PIX_FMT_RGB565LE || \
699 (x) == AV_PIX_FMT_RGB555BE || \
700 (x) == AV_PIX_FMT_RGB555LE || \
701 (x) == AV_PIX_FMT_RGB444BE || \
702 (x) == AV_PIX_FMT_RGB444LE || \
703 (x) == AV_PIX_FMT_RGB8 || \
704 (x) == AV_PIX_FMT_RGB4 || \
705 (x) == AV_PIX_FMT_RGB4_BYTE || \
706 (x) == AV_PIX_FMT_RGBA64BE || \
707 (x) == AV_PIX_FMT_RGBA64LE || \
708 (x) == AV_PIX_FMT_MONOBLACK || \
709 (x) == AV_PIX_FMT_MONOWHITE \
711 #define isBGRinInt(x) \
713 (x) == AV_PIX_FMT_BGR48BE || \
714 (x) == AV_PIX_FMT_BGR48LE || \
715 (x) == AV_PIX_FMT_BGR32 || \
716 (x) == AV_PIX_FMT_BGR32_1 || \
717 (x) == AV_PIX_FMT_BGR24 || \
718 (x) == AV_PIX_FMT_BGR565BE || \
719 (x) == AV_PIX_FMT_BGR565LE || \
720 (x) == AV_PIX_FMT_BGR555BE || \
721 (x) == AV_PIX_FMT_BGR555LE || \
722 (x) == AV_PIX_FMT_BGR444BE || \
723 (x) == AV_PIX_FMT_BGR444LE || \
724 (x) == AV_PIX_FMT_BGR8 || \
725 (x) == AV_PIX_FMT_BGR4 || \
726 (x) == AV_PIX_FMT_BGR4_BYTE || \
727 (x) == AV_PIX_FMT_BGRA64BE || \
728 (x) == AV_PIX_FMT_BGRA64LE || \
729 (x) == AV_PIX_FMT_MONOBLACK || \
730 (x) == AV_PIX_FMT_MONOWHITE \
733 #define isRGBinBytes(x) ( \
734 (x) == AV_PIX_FMT_RGB48BE \
735 || (x) == AV_PIX_FMT_RGB48LE \
736 || (x) == AV_PIX_FMT_RGBA64BE \
737 || (x) == AV_PIX_FMT_RGBA64LE \
738 || (x) == AV_PIX_FMT_RGBA \
739 || (x) == AV_PIX_FMT_ARGB \
740 || (x) == AV_PIX_FMT_RGB24 \
742 #define isBGRinBytes(x) ( \
743 (x) == AV_PIX_FMT_BGR48BE \
744 || (x) == AV_PIX_FMT_BGR48LE \
745 || (x) == AV_PIX_FMT_BGRA64BE \
746 || (x) == AV_PIX_FMT_BGRA64LE \
747 || (x) == AV_PIX_FMT_BGRA \
748 || (x) == AV_PIX_FMT_ABGR \
749 || (x) == AV_PIX_FMT_BGR24 \
752 #define isBayer(x) ( \
753 (x)==AV_PIX_FMT_BAYER_BGGR8 \
754 || (x)==AV_PIX_FMT_BAYER_BGGR16LE \
755 || (x)==AV_PIX_FMT_BAYER_BGGR16BE \
756 || (x)==AV_PIX_FMT_BAYER_RGGB8 \
757 || (x)==AV_PIX_FMT_BAYER_RGGB16LE \
758 || (x)==AV_PIX_FMT_BAYER_RGGB16BE \
759 || (x)==AV_PIX_FMT_BAYER_GBRG8 \
760 || (x)==AV_PIX_FMT_BAYER_GBRG16LE \
761 || (x)==AV_PIX_FMT_BAYER_GBRG16BE \
762 || (x)==AV_PIX_FMT_BAYER_GRBG8 \
763 || (x)==AV_PIX_FMT_BAYER_GRBG16LE \
764 || (x)==AV_PIX_FMT_BAYER_GRBG16BE \
767 #define isAnyRGB(x) \
785 #define isPacked(x) ( \
786 (x)==AV_PIX_FMT_PAL8 \
787 || (x)==AV_PIX_FMT_YUYV422 \
788 || (x)==AV_PIX_FMT_YVYU422 \
789 || (x)==AV_PIX_FMT_UYVY422 \
790 || (x)==AV_PIX_FMT_YA8 \
791 || (x)==AV_PIX_FMT_YA16LE \
792 || (x)==AV_PIX_FMT_YA16BE \
879 int dstWidth,
const uint8_t *src1,
888 int dstWidth,
const uint8_t *src1,
892 int alpha,
int bits,
const int big_endian)
896 int v = alpha ? 0xFFFF>>(15-
bits) : (1<<bits);
897 for (i = 0; i <
height; i++) {
898 #define FILL(wfunc) \
899 for (j = 0; j < width; j++) {\
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
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)
int16_t ** alpPixBuf
Ring buffer for scaled horizontal alpha plane lines to be fed to the vertical scaler.
const uint64_t ff_dither8[2]
int chrBufIndex
Index in ring buffer of the last scaled horizontal chroma line from source.
void(* hcscale_fast)(struct SwsContext *c, int16_t *dst1, int16_t *dst2, int dstWidth, const uint8_t *src1, const uint8_t *src2, int srcW, int xInc)
static enum AVPixelFormat pix_fmt
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
int chrSrcH
Height of source chroma planes.
static av_always_inline int isPlanarRGB(enum AVPixelFormat pix_fmt)
#define YUVRGB_TABLE_HEADROOM
uint8_t * chrMmxextFilterCode
Runtime-generated MMXEXT horizontal fast bilinear scaler code for chroma planes.
uint8_t * lumMmxextFilterCode
Runtime-generated MMXEXT horizontal fast bilinear scaler code for luma/alpha planes.
int vChrDrop
Binary logarithm of extra vertical subsampling factor in source image chroma planes specified by user...
int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
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)
const uint8_t ff_dither_8x8_73[9][8]
uint8_t * table_bU[256+2 *YUVRGB_TABLE_HEADROOM]
int dstFormatBpp
Number of bits per pixel of the destination pixel format.
#define DECLARE_ALIGNED(n, t, v)
static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt)
int srcRange
0 = MPG YUV range, 1 = JPG YUV range (source image).
void ff_get_unscaled_swscale_arm(SwsContext *c)
const uint8_t * lumDither8
int dstY
Last destination vertical line output from last slice.
void ff_sws_init_input_funcs(SwsContext *c)
int srcH
Height of source luma/alpha planes.
void ff_hyscale_fast_mmxext(SwsContext *c, int16_t *dst, int dstWidth, const uint8_t *src, int srcW, int xInc)
#define av_assert0(cond)
assert() equivalent, that is always enabled.
const int32_t ff_yuv2rgb_coeffs[8][4]
int chrDstVSubSample
Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in destination i...
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 ...
ptrdiff_t uv_off
offset (in pixels) between u and v planes
const uint8_t ff_dither_8x8_128[9][8]
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
void(* readChrPlanar)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src[4], int width, int32_t *rgb2yuv)
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
8 bit with AV_PIX_FMT_RGB32 palette
int vChrFilterSize
Vertical filter size for chroma pixels.
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...
int16_t ** lumPixBuf
Ring buffer for scaled horizontal luma plane lines to be fed to the vertical scaler.
void(* lumToYV12)(uint8_t *dst, const uint8_t *src, const uint8_t *src2, const uint8_t *src3, int width, uint32_t *pal)
Unscaled conversion of luma plane to YV12 for horizontal scaler.
int cascaded_tmpStride[4]
SwsFunc ff_yuv2rgb_init_x86(SwsContext *c)
int lastInLumBuf
Last scaled horizontal luma/alpha line from source in the ring buffer.
int16_t rgb2xyz_matrix[3][4]
enum AVPixelFormat dstFormat
Destination pixel format.
uint8_t * table_gU[256+2 *YUVRGB_TABLE_HEADROOM]
int chrSrcHSubSample
Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in source imag...
static av_always_inline int isYUV(enum AVPixelFormat pix_fmt)
yuv2packedX_fn yuv2packedX
void(* lumConvertRange)(int16_t *dst, int width)
Color range conversion function for luma plane if needed.
int32_t * vChrFilterPos
Array of vertical filter starting positions for each dst[i] for chroma planes.
int dstH
Height of destination luma/alpha planes.
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 v...
uint16_t depth_minus1
Number of bits in the component minus 1.
av_cold void ff_sws_init_range_convert(SwsContext *c)
static double alpha(void *priv, double x, double y)
const uint64_t ff_dither4[2]
int16_t ** chrVPixBuf
Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
int32_t * hChrFilterPos
Array of horizontal filter starting positions for each dst[i] for chroma planes.
int hLumFilterSize
Horizontal filter size for luma/alpha pixels.
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
static const uint8_t dither[8][8]
yuv2packed1_fn yuv2packed1
simple assert() macros that are a bit more flexible than ISO C assert().
const uint8_t ff_dither_2x2_4[3][8]
int vChrBufSize
Number of vertical chroma lines allocated in the ring buffer.
static const uint8_t offset[127][2]
int chrDstW
Width of destination chroma planes.
const uint8_t ff_dither_4x4_16[5][8]
uint8_t * cascaded1_tmp[4]
void(* chrConvertRange)(int16_t *dst1, int16_t *dst2, int width)
Color range conversion function for chroma planes if needed.
int32_t alpMmxFilter[4 *MAX_FILTER_SIZE]
int32_t * hLumFilterPos
Array of horizontal filter starting positions for each dst[i] for luma/alpha planes.
int hChrFilterSize
Horizontal filter size for chroma pixels.
int dstRange
0 = MPG YUV range, 1 = JPG YUV range (destination image).
void ff_sws_init_swscale_ppc(SwsContext *c)
uint8_t nb_components
The number of components each pixel has, (1-4)
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 (...
ptrdiff_t uv_offx2
offset (in bytes) between u and v planes
uint8_t * formatConvBuffer
static av_always_inline int is9_OR_10BPS(enum AVPixelFormat pix_fmt)
yuv2planar1_fn yuv2plane1
int vLumBufSize
Number of vertical luma/alpha lines allocated in the ring buffer.
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
int16_t ** chrUPixBuf
Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
yuv2interleavedX_fn yuv2nv12cX
#define AV_PIX_FMT_FLAG_PSEUDOPAL
The pixel format is "pseudo-paletted".
void(* hcScale)(struct SwsContext *c, int16_t *dst, int dstW, const uint8_t *src, const int16_t *filter, const int32_t *filterPos, int filterSize)
int table_gV[256+2 *YUVRGB_TABLE_HEADROOM]
void(* readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv)
Functions to read planar input, such as planar RGB, and convert internally to Y/UV/A.
uint8_t * table_rV[256+2 *YUVRGB_TABLE_HEADROOM]
const uint8_t ff_dither_8x8_220[9][8]
int srcColorspaceTable[4]
int dstW
Width of destination luma/alpha planes.
uint8_t * cascaded_tmp[4]
int sliceDir
Direction that slices are fed to the scaler (1 = top-to-bottom, -1 = bottom-to-top).
int cascaded1_tmpStride[4]
int needs_hcscale
Set if there are chroma planes to be converted.
int32_t * vLumFilterPos
Array of vertical filter starting positions for each dst[i] for luma/alpha planes.
static av_always_inline int isBE(enum AVPixelFormat pix_fmt)
int32_t lumMmxFilter[4 *MAX_FILTER_SIZE]
SwsFunc ff_getSwsFunc(SwsContext *c)
Return function pointer to fastest main scaler path function depending on architecture and available ...
int dstColorspaceTable[4]
const AVClass * av_class
info on struct for av_log
int16_t xyz2rgb_matrix[3][4]
static av_always_inline int isPlanar(enum AVPixelFormat pix_fmt)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
yuv2planarX_fn yuv2planeX
int chrDstH
Height of destination chroma planes.
static av_always_inline int isRGB(enum AVPixelFormat pix_fmt)
BYTE int const BYTE int int int height
int(* SwsFunc)(struct SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
int lumMmxextFilterCodeSize
Runtime-generated MMXEXT horizontal fast bilinear scaler code size for luma/alpha planes...
Describe the class of an AVClass context structure.
int ff_init_hscaler_mmxext(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
int vLumFilterSize
Vertical filter size for luma/alpha pixels.
SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
int chrMmxextFilterCodeSize
Runtime-generated MMXEXT horizontal fast bilinear scaler code size for chroma planes.
static av_always_inline int isPlanarYUV(enum AVPixelFormat pix_fmt)
static av_always_inline int isALPHA(enum AVPixelFormat pix_fmt)
int16_t * vChrFilter
Array of vertical filter coefficients for chroma planes.
void ff_sws_init_swscale_x86(SwsContext *c)
int16_t * hLumFilter
Array of horizontal filter coefficients for luma/alpha planes.
static void fillPlane16(uint8_t *plane, int stride, int width, int height, int y, int alpha, int bits, const int big_endian)
const uint8_t * chrDither8
void ff_get_unscaled_swscale_ppc(SwsContext *c)
int lumBufIndex
Index in ring buffer of the last scaled horizontal luma/alpha line from source.
void ff_hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth, const uint8_t *src, int srcW, int xInc)
int lastInChrBuf
Last scaled horizontal chroma line from source in the ring buffer.
GLint GLenum GLboolean GLsizei stride
yuv2packed2_fn yuv2packed2
void(* readAlpPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv)
static void filter(MpegAudioContext *s, int ch, const short *samples, int incr)
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...
double param[2]
Input parameters for scaling algorithms that need them.
common internal and external API header
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 scalin...
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 ver...
enum AVPixelFormat srcFormat
Source pixel format.
int32_t chrMmxFilter[4 *MAX_FILTER_SIZE]
void(* hyscale_fast)(struct SwsContext *c, int16_t *dst, int dstWidth, const uint8_t *src, int srcW, int xInc)
Scale one horizontal line of input data using a bilinear filter to produce one line of output data...
struct SwsContext * cascaded_context[3]
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
SwsFunc swscale
Note that src, dst, srcStride, dstStride will be copied in the sws_scale() wrapper so they can be fre...
void(* alpToYV12)(uint8_t *dst, const uint8_t *src, const uint8_t *src2, const uint8_t *src3, int width, uint32_t *pal)
Unscaled conversion of alpha plane to YV12 for horizontal scaler.
void ff_yuv2rgb_init_tables_ppc(SwsContext *c, const int inv_table[4], int brightness, int contrast, int saturation)
void ff_updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufIndex, int lastInLumBuf, int lastInChrBuf)
const AVClass sws_context_class
void(* chrToYV12)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, const uint8_t *src3, int width, uint32_t *pal)
Unscaled conversion of chroma planes to YV12 for horizontal scaler.
int srcFormatBpp
Number of bits per pixel of the source pixel format.
const uint8_t ff_dither_8x8_32[9][8]
static av_always_inline int isPackedRGB(enum AVPixelFormat pix_fmt)
int32_t input_rgb2yuv_table[16+40 *4]
int16_t * vLumFilter
Array of vertical filter coefficients for luma/alpha planes.
const uint8_t ff_dither_2x2_8[3][8]
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)
static av_always_inline int usePal(enum AVPixelFormat pix_fmt)
int16_t * hChrFilter
Array of horizontal filter coefficients for chroma planes.
int chrDstHSubSample
Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in destination...
int chrSrcW
Width of source chroma planes.
void ff_get_unscaled_swscale(SwsContext *c)
Set c->swscale to an unscaled converter if one exists for the specific source and destination formats...
int srcW
Width of source luma/alpha planes.
int chrSrcVSubSample
Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in source image...
int flags
Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc...
AVPixelFormat
Pixel format.
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
void(* hyScale)(struct SwsContext *c, int16_t *dst, int dstW, const uint8_t *src, const int16_t *filter, const int32_t *filterPos, int filterSize)
Scale one horizontal line of input data using a filter over the input lines, to produce one (differen...
static av_always_inline uint32_t rgb2yuv(const uint32_t *r2y, uint32_t c)
SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c)