libswscale/swscale_unscaled.c File Reference

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

Go to the source code of this file.

Defines

#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))
#define isRGBA32(x)
#define isRGBA64(x)
#define isRGB48(x)
#define IS_NOT_NE(bpp, fmt)
#define CONV_IS(src, dst)   (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)
#define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)
#define COPY816(w)
#define FAST_COPY_UP(shift)
#define COPY_UP(r, w)
#define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt)
#define isByteRGB(f)
#define isPlanarGray(x)   (isGray(x) && (x) != PIX_FMT_GRAY8A)

Typedefs

typedef void(* rgbConvFn )(const uint8_t *, uint8_t *, int)

Functions

static void fillPlane (uint8_t *plane, int stride, int width, int height, int y, uint8_t val)
static void fillPlane16 (uint8_t *plane, int stride, int width, int height, int y, int alpha, int bits)
static void copyPlane (const uint8_t *src, int srcStride, int srcSliceY, int srcSliceH, int width, uint8_t *dst, int dstStride)
static int planarToNv12Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int planarToYuy2Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int planarToUyvyWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int yuv422pToYuy2Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int yuv422pToUyvyWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int yuyvToYuv420Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int yuyvToYuv422Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int uyvyToYuv420Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static int uyvyToYuv422Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[])
static void gray8aToPacked32 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
static void gray8aToPacked32_1 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
static void gray8aToPacked24 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
static int packed_16bpc_bswap (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static int palToRgbWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static void gbr24ptopacked24 (const uint8_t *src[], int srcStride[], uint8_t *dst, int dstStride, int srcSliceH, int width)
static void gbr24ptopacked32 (const uint8_t *src[], int srcStride[], uint8_t *dst, int dstStride, int srcSliceH, int alpha_first, int width)
static int planarRgbToRgbWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static rgbConvFn findRgbConvFn (SwsContext *c)
static int rgbToRgbWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static int bgr24ToYv12Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static int yvu9ToYv12Wrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static int packedCopyWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
static int planarCopyWrapper (SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
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.
static void reset_ptr (const uint8_t *src[], int format)
static int check_image_pointers (const uint8_t *const data[4], enum PixelFormat pix_fmt, const int linesizes[4])
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.
void sws_convertPalette8ToPacked32 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
 Convert an 8-bit paletted frame into a frame with a color depth of 32 bits.
void sws_convertPalette8ToPacked24 (const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
 Convert an 8-bit paletted frame into a frame with a color depth of 24 bits.

Variables

const uint8_t dithers [8][8][8]
static const uint8_t flat64 [8] = {64,64,64,64,64,64,64,64}
const uint16_t dither_scale [15][16]

Define Documentation

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

Definition at line 40 of file swscale_unscaled.c.

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

Definition at line 39 of file swscale_unscaled.c.

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

Definition at line 38 of file swscale_unscaled.c.

#define CONV_IS ( src,
dst   )     (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)

Referenced by findRgbConvFn().

#define COPY816 ( w   ) 

Value:

if(shiftonly){\
                            for (j = 0; j < length; j++)\
                                w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
                        }else{\
                            for (j = 0; j < length; j++)\
                                w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
                                               (srcPtr[j]>>(2*8-dst_depth)));\
                        }

Referenced by planarCopyWrapper().

#define COPY_UP ( r,
w   ) 

Value:

if(shiftonly){\
        for (j = 0; j < length; j++){ \
            unsigned int v= r(&srcPtr2[j]);\
            w(&dstPtr2[j], v<<(dst_depth-src_depth));\
        }\
    }else{\
        for (j = 0; j < length; j++){ \
            unsigned int v= r(&srcPtr2[j]);\
            w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
                        (v>>(2*src_depth-dst_depth)));\
        }\
    }

Referenced by planarCopyWrapper().

#define DITHER_COPY ( dst,
dstStride,
src,
srcStride,
bswap,
dbswap   ) 

Value:

uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\
    int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\
    for (i = 0; i < height; i++) {\
        const uint8_t *dither= dithers[src_depth-9][i&7];\
        for (j = 0; j < length-7; j+=8){\
            dst[j+0] = dbswap((bswap(src[j+0]) + dither[0])*scale>>shift);\
            dst[j+1] = dbswap((bswap(src[j+1]) + dither[1])*scale>>shift);\
            dst[j+2] = dbswap((bswap(src[j+2]) + dither[2])*scale>>shift);\
            dst[j+3] = dbswap((bswap(src[j+3]) + dither[3])*scale>>shift);\
            dst[j+4] = dbswap((bswap(src[j+4]) + dither[4])*scale>>shift);\
            dst[j+5] = dbswap((bswap(src[j+5]) + dither[5])*scale>>shift);\
            dst[j+6] = dbswap((bswap(src[j+6]) + dither[6])*scale>>shift);\
            dst[j+7] = dbswap((bswap(src[j+7]) + dither[7])*scale>>shift);\
        }\
        for (; j < length; j++)\
            dst[j] = dbswap((bswap(src[j]) + dither[j&7])*scale>>shift);\
        dst += dstStride;\
        src += srcStride;\
    }

Definition at line 752 of file swscale_unscaled.c.

Referenced by planarCopyWrapper().

#define FAST_COPY_UP ( shift   ) 

Value:

for (j = 0; j < length - 1; j += 2) { \
        uint32_t v = AV_RN32A(srcPtr2 + j); \
        AV_WN32A(dstPtr2 + j, v << shift); \
    } \
    length &= 1;

Referenced by planarCopyWrapper().

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

Definition at line 43 of file swscale_unscaled.c.

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

Definition at line 42 of file swscale_unscaled.c.

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

Definition at line 41 of file swscale_unscaled.c.

#define IS_DIFFERENT_ENDIANESS ( src_fmt,
dst_fmt,
pix_fmt   ) 

Value:

((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) ||     \
     (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE))

Definition at line 935 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

#define IS_NOT_NE ( bpp,
fmt   ) 

Value:

(((bpp + 7) >> 3) == 2 && \
     (!(av_pix_fmt_descriptors[fmt].flags & PIX_FMT_BE) != !HAVE_BIGENDIAN))

Referenced by rgbToRgbWrapper().

#define isByteRGB ( f   ) 

Value:

(\
        f == PIX_FMT_RGB32   ||\
        f == PIX_FMT_RGB32_1 ||\
        f == PIX_FMT_RGB24   ||\
        f == PIX_FMT_BGR32   ||\
        f == PIX_FMT_BGR32_1 ||\
        f == PIX_FMT_BGR24)

Referenced by ff_get_unscaled_swscale().

#define isPlanarGray ( x   )     (isGray(x) && (x) != PIX_FMT_GRAY8A)

Referenced by ff_get_unscaled_swscale().

#define isRGB48 ( x   ) 

Value:

(                \
           (x) == PIX_FMT_RGB48LE   \
        || (x) == PIX_FMT_RGB48BE   \
        || (x) == PIX_FMT_BGR48LE   \
        || (x) == PIX_FMT_BGR48BE   \
        )

Definition at line 531 of file swscale_unscaled.c.

Referenced by findRgbConvFn().

#define isRGBA32 ( x   ) 

Value:

(            \
           (x) == PIX_FMT_ARGB   \
        || (x) == PIX_FMT_RGBA   \
        || (x) == PIX_FMT_BGRA   \
        || (x) == PIX_FMT_ABGR   \
        )

Definition at line 517 of file swscale_unscaled.c.

Referenced by findRgbConvFn(), and rgbToRgbWrapper().

#define isRGBA64 ( x   ) 

Value:

(                \
           (x) == PIX_FMT_RGBA64LE   \
        || (x) == PIX_FMT_RGBA64BE   \
        || (x) == PIX_FMT_BGRA64LE   \
        || (x) == PIX_FMT_BGRA64BE   \
        )

Definition at line 524 of file swscale_unscaled.c.

Referenced by findRgbConvFn().

#define RGB2YUV_SHIFT   15

Definition at line 37 of file swscale_unscaled.c.

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

Definition at line 46 of file swscale_unscaled.c.

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

Definition at line 45 of file swscale_unscaled.c.

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

Definition at line 44 of file swscale_unscaled.c.

Typedef Documentation

typedef void(* rgbConvFn)(const uint8_t *, uint8_t *, int)

Definition at line 539 of file swscale_unscaled.c.

Function Documentation

static int bgr24ToYv12Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dst[],
int  dstStride[] 
) [static]

Definition at line 692 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 1075 of file swscale_unscaled.c.

Referenced by sws_scale().

static void copyPlane ( const uint8_t *  src,
int  srcStride,
int  srcSliceY,
int  srcSliceH,
int  width,
uint8_t *  dst,
int  dstStride 
) [static]

Definition at line 169 of file swscale_unscaled.c.

Referenced by planarToNv12Wrapper(), and yvu9ToYv12Wrapper().

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 940 of file swscale_unscaled.c.

Referenced by sws_init_context().

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

Definition at line 144 of file swscale_unscaled.c.

static void fillPlane16 ( uint8_t *  plane,
int  stride,
int  width,
int  height,
int  y,
int  alpha,
int  bits 
) [static]

Definition at line 155 of file swscale_unscaled.c.

Referenced by planarCopyWrapper().

static rgbConvFn findRgbConvFn ( SwsContext *  c  )  [static]

Definition at line 540 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale(), and rgbToRgbWrapper().

static void gbr24ptopacked24 ( const uint8_t *  src[],
int  srcStride[],
uint8_t *  dst,
int  dstStride,
int  srcSliceH,
int  width 
) [static]

Definition at line 415 of file swscale_unscaled.c.

Referenced by planarRgbToRgbWrapper().

static void gbr24ptopacked32 ( const uint8_t *  src[],
int  srcStride[],
uint8_t *  dst,
int  dstStride,
int  srcSliceH,
int  alpha_first,
int  width 
) [static]

Definition at line 433 of file swscale_unscaled.c.

Referenced by planarRgbToRgbWrapper().

static void gray8aToPacked24 ( const uint8_t *  src,
uint8_t *  dst,
int  num_pixels,
const uint8_t *  palette 
) [static]

Definition at line 333 of file swscale_unscaled.c.

Referenced by palToRgbWrapper().

static void gray8aToPacked32 ( const uint8_t *  src,
uint8_t *  dst,
int  num_pixels,
const uint8_t *  palette 
) [static]

Definition at line 316 of file swscale_unscaled.c.

Referenced by palToRgbWrapper().

static void gray8aToPacked32_1 ( const uint8_t *  src,
uint8_t *  dst,
int  num_pixels,
const uint8_t *  palette 
) [static]

Definition at line 324 of file swscale_unscaled.c.

Referenced by palToRgbWrapper().

static int packed_16bpc_bswap ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dst[],
int  dstStride[] 
) [static]

Definition at line 347 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 725 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 369 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 773 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 462 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int planarToNv12Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 186 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 218 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int planarToYuy2Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 206 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

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

Definition at line 1063 of file swscale_unscaled.c.

Referenced by sws_scale().

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

Definition at line 638 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

void sws_convertPalette8ToPacked24 ( const uint8_t *  src,
uint8_t *  dst,
int  num_pixels,
const uint8_t *  palette 
)

Convert an 8-bit paletted frame into a frame with a color depth of 24 bits.

With the palette format "ABCD", the destination frame ends up with the format "ABC".

Parameters:
src source frame buffer
dst destination frame buffer
num_pixels number of pixels to convert
palette array with [256] entries, which must match color arrangement (RGB or BGR) of src

Definition at line 1263 of file swscale_unscaled.c.

Referenced by palToRgbWrapper(), and put_image().

void sws_convertPalette8ToPacked32 ( const uint8_t *  src,
uint8_t *  dst,
int  num_pixels,
const uint8_t *  palette 
)

Convert an 8-bit paletted frame into a frame with a color depth of 32 bits.

The output frame will have the same packed format as the palette.

Parameters:
src source frame buffer
dst destination frame buffer
num_pixels number of pixels to convert
palette array with [256] entries, which must match color arrangement (RGB or BGR) of src

Definition at line 1253 of file swscale_unscaled.c.

Referenced by palToRgbWrapper(), and put_image().

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.

Scale the image slice in srcSlice and put the resulting scaled slice in the image in dst.

Assumes planar YUV to be in YUV order instead of YVU.

Definition at line 1094 of file swscale_unscaled.c.

Referenced by blur(), doTest(), ff_scale_image(), main(), queue_picture(), scale_slice(), wrap(), and write_video_frame().

static int uyvyToYuv420Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 285 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int uyvyToYuv422Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 302 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int yuv422pToUyvyWrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 242 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int yuv422pToYuy2Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 230 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int yuyvToYuv420Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 254 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int yuyvToYuv422Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dstParam[],
int  dstStride[] 
) [static]

Definition at line 271 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

static int yvu9ToYv12Wrapper ( SwsContext *  c,
const uint8_t *  src[],
int  srcStride[],
int  srcSliceY,
int  srcSliceH,
uint8_t *  dst[],
int  dstStride[] 
) [static]

Definition at line 708 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale().

Variable Documentation

const uint16_t dither_scale[15][16]

Initial value:

{
{    2,    3,    3,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,},
{    2,    3,    7,    7,   13,   13,   25,   25,   25,   25,   25,   25,   25,   25,   25,   25,},
{    3,    3,    4,   15,   15,   29,   57,   57,   57,  113,  113,  113,  113,  113,  113,  113,},
{    3,    4,    4,    5,   31,   31,   61,  121,  241,  241,  241,  241,  481,  481,  481,  481,},
{    3,    4,    5,    5,    6,   63,   63,  125,  249,  497,  993,  993,  993,  993,  993, 1985,},
{    3,    5,    6,    6,    6,    7,  127,  127,  253,  505, 1009, 2017, 4033, 4033, 4033, 4033,},
{    3,    5,    6,    7,    7,    7,    8,  255,  255,  509, 1017, 2033, 4065, 8129,16257,16257,},
{    3,    5,    6,    8,    8,    8,    8,    9,  511,  511, 1021, 2041, 4081, 8161,16321,32641,},
{    3,    5,    7,    8,    9,    9,    9,    9,   10, 1023, 1023, 2045, 4089, 8177,16353,32705,},
{    3,    5,    7,    8,   10,   10,   10,   10,   10,   11, 2047, 2047, 4093, 8185,16369,32737,},
{    3,    5,    7,    8,   10,   11,   11,   11,   11,   11,   12, 4095, 4095, 8189,16377,32753,},
{    3,    5,    7,    9,   10,   12,   12,   12,   12,   12,   12,   13, 8191, 8191,16381,32761,},
{    3,    5,    7,    9,   10,   12,   13,   13,   13,   13,   13,   13,   14,16383,16383,32765,},
{    3,    5,    7,    9,   10,   12,   14,   14,   14,   14,   14,   14,   14,   15,32767,32767,},
{    3,    5,    7,    9,   11,   12,   14,   15,   15,   15,   15,   15,   15,   15,   16,65535,},
}

Definition at line 125 of file swscale_unscaled.c.

const uint8_t dithers[8][8][8]

Definition at line 48 of file swscale_unscaled.c.

const uint8_t flat64[8] = {64,64,64,64,64,64,64,64} [static]

Definition at line 123 of file swscale_unscaled.c.

Generated on Fri Oct 26 02:50:13 2012 for FFmpeg by  doxygen 1.5.8