/*
* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <altivec.h>
#endif
+#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
+#include "libavutil/common.h"
+#include "libavutil/log.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/pixdesc.h"
-#define STR(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
+#define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
-#define MAX_FILTER_SIZE 256
-
-#if ARCH_X86
-#define VOFW 5120
-#else
-#define VOFW 2048 // faster on PPC and not tested on others
-#endif
+#define FAST_BGR2YV12 // use 7-bit instead of 15-bit coefficients
-#define VOF (VOFW*2)
+#define MAX_FILTER_SIZE 256
#if HAVE_BIGENDIAN
#define ALT32_CORR (-1)
#endif
#if ARCH_X86_64
-# define APCK_PTR2 8
+# define APCK_PTR2 8
# define APCK_COEF 16
# define APCK_SIZE 24
#else
-# define APCK_PTR2 4
-# define APCK_COEF 8
+# define APCK_PTR2 4
+# define APCK_COEF 8
# define APCK_SIZE 16
#endif
struct SwsContext;
-typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t* src[],
+typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t *src[],
int srcStride[], int srcSliceY, int srcSliceH,
- uint8_t* dst[], int dstStride[]);
+ uint8_t *dst[], int dstStride[]);
+
+/**
+ * Write one line of horizontally scaled data to planar output
+ * without any additional vertical scaling (or point-scaling).
+ *
+ * @param src scaled source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param dest pointer to the output plane. For >8bit
+ * output, this is in uint16_t
+ * @param dstW width of destination in pixels
+ * @param dither ordered dither array of type int16_t and size 8
+ * @param offset Dither offset
+ */
+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
+ * with multi-point vertical scaling between input pixels.
+ *
+ * @param filter vertical luma/alpha scaling coefficients, 12bit [0,4096]
+ * @param src scaled luma (Y) or alpha (A) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param filterSize number of vertical input lines to scale
+ * @param dest pointer to output plane. For >8bit
+ * output, this is in uint16_t
+ * @param dstW width of destination pixels
+ * @param offset Dither offset
+ */
+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 chroma to interleaved output
+ * with multi-point vertical scaling between input pixels.
+ *
+ * @param c SWS scaling context
+ * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096]
+ * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrFilterSize number of vertical chroma input lines to scale
+ * @param dest pointer to the output plane. For >8bit
+ * output, this is in uint16_t
+ * @param dstW width of chroma planes
+ */
+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 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.
+ *
+ * @param c SWS scaling context
+ * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param dest pointer to the output plane. For 16bit output, this is
+ * uint16_t
+ * @param dstW width of lumSrc and alpSrc in pixels, number of pixels
+ * to write into dest[]
+ * @param uvalpha chroma 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)
+ * @param y vertical 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.
+ */
+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 by doing bilinear scaling between two input lines.
+ *
+ * @param c SWS scaling context
+ * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param dest pointer to the output plane. For 16bit output, this is
+ * uint16_t
+ * @param dstW width of lumSrc and alpSrc in pixels, number of pixels
+ * to write into dest[]
+ * @param yalpha luma/alpha scaling coefficients for the second input line.
+ * The first line's coefficients can be calculated by using
+ * 4096 - yalpha
+ * @param uvalpha chroma scaling coefficient for the second input line. The
+ * first line's coefficients can be calculated by using
+ * 4096 - uvalpha
+ * @param y vertical 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.
+ */
+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 multi-point vertical scaling between input pixels.
+ *
+ * @param c SWS scaling context
+ * @param lumFilter vertical luma/alpha scaling coefficients, 12bit [0,4096]
+ * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param lumFilterSize number of vertical luma/alpha input lines to scale
+ * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096]
+ * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrFilterSize number of vertical chroma input lines to scale
+ * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param dest pointer to the output plane. For 16bit output, this is
+ * uint16_t
+ * @param dstW width of lumSrc and alpSrc in pixels, number of pixels
+ * to write into dest[]
+ * @param y vertical 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.
+ */
+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 YUV/RGB
+ * output by doing multi-point vertical scaling between input pixels.
+ *
+ * @param c SWS scaling context
+ * @param lumFilter vertical luma/alpha scaling coefficients, 12bit [0,4096]
+ * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param lumFilterSize number of vertical luma/alpha input lines to scale
+ * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096]
+ * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrFilterSize number of vertical chroma input lines to scale
+ * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param dest pointer to the output planes. For 16bit output, this is
+ * uint16_t
+ * @param dstW width of lumSrc and alpSrc in pixels, number of pixels
+ * to write into dest[]
+ * @param y vertical 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.
+ */
+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);
/* This struct should be aligned on at least a 32-byte boundary. */
typedef struct SwsContext {
* Note that src, dst, srcStride, dstStride will be copied in the
* sws_scale() wrapper so they can be freely modified here.
*/
- SwsFunc swScale;
+ SwsFunc swscale;
int srcW; ///< Width of source luma/alpha planes.
int srcH; ///< Height of source luma/alpha planes.
int dstH; ///< Height of destination luma/alpha planes.
int chrDstH; ///< Height of destination chroma planes.
int lumXInc, chrXInc;
int lumYInc, chrYInc;
- enum PixelFormat dstFormat; ///< Destination pixel format.
- enum PixelFormat srcFormat; ///< Source pixel format.
+ enum AVPixelFormat dstFormat; ///< Destination pixel format.
+ enum AVPixelFormat srcFormat; ///< Source pixel format.
+ int dstFormatBpp; ///< Number of bits per pixel of the destination pixel format.
+ int srcFormatBpp; ///< Number of bits per pixel of the source pixel format.
+ int dstBpc, srcBpc;
int chrSrcHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in source image.
int chrSrcVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in source image.
int chrDstHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in destination image.
*/
//@{
int16_t **lumPixBuf; ///< Ring buffer for scaled horizontal luma plane lines to be fed to the vertical scaler.
- int16_t **chrPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
+ int16_t **chrUPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
+ int16_t **chrVPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
int16_t **alpPixBuf; ///< Ring buffer for scaled horizontal alpha plane lines to be fed to the vertical scaler.
- int vLumBufSize; ///< Number of vertical luma/alpha lines allocated in the ring buffer.
- int vChrBufSize; ///< Number of vertical chroma lines allocated in the ring buffer.
- int lastInLumBuf; ///< Last scaled horizontal luma/alpha line from source in the ring buffer.
- int lastInChrBuf; ///< Last scaled horizontal chroma line from source in the ring buffer.
- int lumBufIndex; ///< Index in ring buffer of the last scaled horizontal luma/alpha line from source.
- int chrBufIndex; ///< Index in ring buffer of the last scaled horizontal chroma line from source.
+ int vLumBufSize; ///< Number of vertical luma/alpha lines allocated in the ring buffer.
+ int vChrBufSize; ///< Number of vertical chroma lines allocated in the ring buffer.
+ int lastInLumBuf; ///< Last scaled horizontal luma/alpha line from source in the ring buffer.
+ int lastInChrBuf; ///< Last scaled horizontal chroma line from source in the ring buffer.
+ int lumBufIndex; ///< Index in ring buffer of the last scaled horizontal luma/alpha line from source.
+ int chrBufIndex; ///< Index in ring buffer of the last scaled horizontal chroma line from source.
//@}
- uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful
+ uint8_t *formatConvBuffer;
/**
* @name Horizontal and vertical filters.
int16_t *hChrFilter; ///< Array of horizontal filter coefficients for chroma planes.
int16_t *vLumFilter; ///< Array of vertical filter coefficients for luma/alpha planes.
int16_t *vChrFilter; ///< Array of vertical filter coefficients for chroma planes.
- int16_t *hLumFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for luma/alpha planes.
- int16_t *hChrFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for chroma planes.
- int16_t *vLumFilterPos; ///< Array of vertical filter starting positions for each dst[i] for luma/alpha planes.
- int16_t *vChrFilterPos; ///< Array of vertical filter starting positions for each dst[i] for chroma planes.
- int hLumFilterSize; ///< Horizontal filter size for luma/alpha pixels.
- int hChrFilterSize; ///< Horizontal filter size for chroma pixels.
- int vLumFilterSize; ///< Vertical filter size for luma/alpha pixels.
- int vChrFilterSize; ///< Vertical filter size for chroma pixels.
+ int32_t *hLumFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for luma/alpha planes.
+ int32_t *hChrFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for chroma planes.
+ int32_t *vLumFilterPos; ///< Array of vertical filter starting positions for each dst[i] for luma/alpha planes.
+ int32_t *vChrFilterPos; ///< Array of vertical filter starting positions for each dst[i] for chroma planes.
+ int hLumFilterSize; ///< Horizontal filter size for luma/alpha pixels.
+ int hChrFilterSize; ///< Horizontal filter size for chroma pixels.
+ int vLumFilterSize; ///< Vertical filter size for luma/alpha pixels.
+ int vChrFilterSize; ///< Vertical filter size for chroma pixels.
//@}
- int lumMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for luma/alpha planes.
- int chrMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for chroma planes.
- uint8_t *lumMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for luma/alpha planes.
- uint8_t *chrMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for chroma planes.
+ int lumMmxextFilterCodeSize; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code size for luma/alpha planes.
+ int chrMmxextFilterCodeSize; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code size for chroma planes.
+ uint8_t *lumMmxextFilterCode; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code for luma/alpha planes.
+ uint8_t *chrMmxextFilterCode; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code for chroma planes.
- int canMMX2BeUsed;
+ int canMMXEXTBeUsed;
int dstY; ///< Last destination vertical line output from last slice.
int flags; ///< Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc...
- void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
- uint8_t * table_rV[256];
- uint8_t * table_gU[256];
- int table_gV[256];
- uint8_t * table_bU[256];
+ void *yuvTable; // pointer to the yuv->rgb table start so it can be freed()
+ uint8_t *table_rV[256];
+ uint8_t *table_gU[256];
+ int table_gV[256];
+ uint8_t *table_bU[256];
//Colorspace stuff
int contrast, brightness, saturation; // for sws_getColorspaceDetails
#define V_TEMP "11*8+4*4*256*2+32"
#define Y_TEMP "11*8+4*4*256*2+40"
#define ALP_MMX_FILTER_OFFSET "11*8+4*4*256*2+48"
+#define UV_OFF_PX "11*8+4*4*256*3+48"
+#define UV_OFF_BYTE "11*8+4*4*256*3+56"
+#define DITHER16 "11*8+4*4*256*3+64"
+#define DITHER32 "11*8+4*4*256*3+80"
DECLARE_ALIGNED(8, uint64_t, redDither);
DECLARE_ALIGNED(8, uint64_t, greenDither);
DECLARE_ALIGNED(8, uint64_t, yOffset);
DECLARE_ALIGNED(8, uint64_t, uOffset);
DECLARE_ALIGNED(8, uint64_t, vOffset);
- int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
- int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
+ int32_t lumMmxFilter[4 * MAX_FILTER_SIZE];
+ int32_t chrMmxFilter[4 * MAX_FILTER_SIZE];
int dstW; ///< Width of destination luma/alpha planes.
DECLARE_ALIGNED(8, uint64_t, esp);
DECLARE_ALIGNED(8, uint64_t, vRounder);
DECLARE_ALIGNED(8, uint64_t, u_temp);
DECLARE_ALIGNED(8, uint64_t, v_temp);
DECLARE_ALIGNED(8, uint64_t, y_temp);
- int32_t alpMmxFilter[4*MAX_FILTER_SIZE];
+ int32_t alpMmxFilter[4 * MAX_FILTER_SIZE];
+ // alignment of these values is not necessary, but merely here
+ // to maintain the same offset across x8632 and x86-64. Once we
+ // use proper offset macros in the asm, they can be removed.
+ DECLARE_ALIGNED(8, ptrdiff_t, uv_off_px); ///< offset (in pixels) between u and v planes
+ DECLARE_ALIGNED(8, ptrdiff_t, uv_off_byte); ///< offset (in bytes) between u and v planes
+ DECLARE_ALIGNED(8, uint16_t, dither16)[8];
+ DECLARE_ALIGNED(8, uint32_t, dither32)[8];
+
+ const uint8_t *chrDither8, *lumDither8;
#if HAVE_ALTIVEC
vector signed short CY;
vector signed short CGV;
vector signed short OY;
vector unsigned short CSHIFT;
- vector signed short *vYCoeffsBank, *vCCoeffsBank;
-#endif
-
-#if ARCH_BFIN
- DECLARE_ALIGNED(4, uint32_t, oy);
- DECLARE_ALIGNED(4, uint32_t, oc);
- DECLARE_ALIGNED(4, uint32_t, zero);
- DECLARE_ALIGNED(4, uint32_t, cy);
- DECLARE_ALIGNED(4, uint32_t, crv);
- DECLARE_ALIGNED(4, uint32_t, rmask);
- DECLARE_ALIGNED(4, uint32_t, cbu);
- DECLARE_ALIGNED(4, uint32_t, bmask);
- DECLARE_ALIGNED(4, uint32_t, cgu);
- DECLARE_ALIGNED(4, uint32_t, cgv);
- DECLARE_ALIGNED(4, uint32_t, gmask);
-#endif
-
-#if HAVE_VIS
- DECLARE_ALIGNED(8, uint64_t, sparc_coeffs)[10];
+ vector signed short *vYCoeffsBank, *vCCoeffsBank;
#endif
- /* function pointers for swScale() */
- void (*yuv2nv12X )(struct SwsContext *c,
- const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
- const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
- uint8_t *dest, uint8_t *uDest,
- int dstW, int chrDstW, int dstFormat);
- void (*yuv2yuv1 )(struct SwsContext *c,
- const int16_t *lumSrc, const int16_t *chrSrc, const int16_t *alpSrc,
- uint8_t *dest,
- uint8_t *uDest, uint8_t *vDest, uint8_t *aDest,
- long dstW, long chrDstW);
- void (*yuv2yuvX )(struct SwsContext *c,
- const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
- const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
- const int16_t **alpSrc,
- uint8_t *dest,
- uint8_t *uDest, uint8_t *vDest, uint8_t *aDest,
- long dstW, long chrDstW);
- void (*yuv2packed1)(struct SwsContext *c,
- const uint16_t *buf0,
- const uint16_t *uvbuf0, const uint16_t *uvbuf1,
- const uint16_t *abuf0,
- uint8_t *dest,
- int dstW, int uvalpha, int dstFormat, int flags, int y);
- void (*yuv2packed2)(struct SwsContext *c,
- const uint16_t *buf0, const uint16_t *buf1,
- const uint16_t *uvbuf0, const uint16_t *uvbuf1,
- const uint16_t *abuf0, const uint16_t *abuf1,
- uint8_t *dest,
- int dstW, int yalpha, int uvalpha, int y);
- void (*yuv2packedX)(struct SwsContext *c,
- const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
- const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
- const int16_t **alpSrc, uint8_t *dest,
- long dstW, long dstY);
+ /* function pointers for swscale() */
+ yuv2planar1_fn yuv2plane1;
+ yuv2planarX_fn yuv2planeX;
+ yuv2interleavedX_fn yuv2nv12cX;
+ yuv2packed1_fn yuv2packed1;
+ yuv2packed2_fn yuv2packed2;
+ yuv2packedX_fn yuv2packedX;
+ yuv2anyX_fn yuv2anyX;
+ /// Unscaled conversion of luma plane to YV12 for horizontal scaler.
void (*lumToYV12)(uint8_t *dst, const uint8_t *src,
- long width, uint32_t *pal); ///< Unscaled conversion of luma plane to YV12 for horizontal scaler.
+ int width, uint32_t *pal);
+ /// Unscaled conversion of alpha plane to YV12 for horizontal scaler.
void (*alpToYV12)(uint8_t *dst, const uint8_t *src,
- long width, uint32_t *pal); ///< Unscaled conversion of alpha plane to YV12 for horizontal scaler.
+ int width, uint32_t *pal);
+ /// Unscaled conversion of chroma planes to YV12 for horizontal scaler.
void (*chrToYV12)(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
- long width, uint32_t *pal); ///< Unscaled conversion of chroma planes to YV12 for horizontal scaler.
+ int width, uint32_t *pal);
+
+ /**
+ * Functions to read planar input, such as planar RGB, and convert
+ * internally to Y/UV/A.
+ */
+ /** @{ */
+ void (*readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width);
+ void (*readChrPlanar)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src[4],
+ int width);
+ void (*readAlpPlanar)(uint8_t *dst, const uint8_t *src[4], int width);
+ /** @} */
+
+ /**
+ * Scale one horizontal line of input data using a bilinear filter
+ * to produce one line of output data. Compared to SwsContext->hScale(),
+ * please take note of the following caveats when using these:
+ * - Scaling is done using only 7bit instead of 14bit coefficients.
+ * - You can use no more than 5 input pixels to produce 4 output
+ * pixels. Therefore, this filter should not be used for downscaling
+ * by more than ~20% in width (because that equals more than 5/4th
+ * downscaling and thus more than 5 pixels input per 4 pixels output).
+ * - In general, bilinear filters create artifacts during downscaling
+ * (even when <20%), because one output pixel will span more than one
+ * input pixel, and thus some pixels will need edges of both neighbor
+ * pixels to interpolate the output pixel. Since you can use at most
+ * two input pixels per output pixel in bilinear scaling, this is
+ * impossible and thus downscaling by any size will create artifacts.
+ * To enable this type of scaling, set SWS_FLAG_FAST_BILINEAR
+ * in SwsContext->flags.
+ */
+ /** @{ */
void (*hyscale_fast)(struct SwsContext *c,
- int16_t *dst, long dstWidth,
+ int16_t *dst, int dstWidth,
const uint8_t *src, int srcW, int xInc);
void (*hcscale_fast)(struct SwsContext *c,
- int16_t *dst, long dstWidth,
+ int16_t *dst1, int16_t *dst2, int dstWidth,
const uint8_t *src1, const uint8_t *src2,
int srcW, int xInc);
+ /** @} */
- void (*hScale)(int16_t *dst, int dstW, const uint8_t *src, int srcW,
- int xInc, const int16_t *filter, const int16_t *filterPos,
- long filterSize);
-
- void (*lumConvertRange)(uint16_t *dst, int width); ///< Color range conversion function for luma plane if needed.
- void (*chrConvertRange)(uint16_t *dst, int width); ///< Color range conversion function for chroma planes if needed.
-
- int lumSrcOffset; ///< Offset given to luma src pointers passed to horizontal input functions.
- int chrSrcOffset; ///< Offset given to chroma src pointers passed to horizontal input functions.
- int alpSrcOffset; ///< Offset given to alpha src pointers passed to horizontal input functions.
+ /**
+ * Scale one horizontal line of input data using a filter over the input
+ * lines, to produce one (differently sized) line of output data.
+ *
+ * @param dst pointer to destination buffer for horizontally scaled
+ * data. If the number of bits per component of one
+ * destination pixel (SwsContext->dstBpc) is <= 10, data
+ * will be 15bpc in 16bits (int16_t) width. Else (i.e.
+ * SwsContext->dstBpc == 16), data will be 19bpc in
+ * 32bits (int32_t) width.
+ * @param dstW width of destination image
+ * @param src pointer to source data to be scaled. If the number of
+ * bits per component of a source pixel (SwsContext->srcBpc)
+ * is 8, this is 8bpc in 8bits (uint8_t) width. Else
+ * (i.e. SwsContext->dstBpc > 8), this is native depth
+ * in 16bits (uint16_t) width. In other words, for 9-bit
+ * YUV input, this is 9bpc, for 10-bit YUV input, this is
+ * 10bpc, and for 16-bit RGB or YUV, this is 16bpc.
+ * @param filter filter coefficients to be used per output pixel for
+ * scaling. This contains 14bpp filtering coefficients.
+ * Guaranteed to contain dstW * filterSize entries.
+ * @param filterPos position of the first input pixel to be used for
+ * each output pixel during scaling. Guaranteed to
+ * contain dstW entries.
+ * @param filterSize the number of input coefficients to be used (and
+ * thus the number of input pixels to be used) for
+ * creating a single output pixel. Is aligned to 4
+ * (and input coefficients thus padded with zeroes)
+ * to simplify creating SIMD code.
+ */
+ /** @{ */
+ void (*hyScale)(struct SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize);
+ void (*hcScale)(struct SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize);
+ /** @} */
+
+ /// Color range conversion function for luma plane if needed.
+ void (*lumConvertRange)(int16_t *dst, int width);
+ /// Color range conversion function for chroma planes if needed.
+ void (*chrConvertRange)(int16_t *dst1, int16_t *dst2, int width);
int needs_hcscale; ///< Set if there are chroma planes to be converted.
-
} SwsContext;
//FIXME check init (where 0)
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);
+
+SwsFunc ff_yuv2rgb_init_x86(SwsContext *c);
+SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c);
-void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4],
- int brightness, int contrast, int saturation);
-SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c);
-SwsFunc ff_yuv2rgb_init_vis(SwsContext *c);
-SwsFunc ff_yuv2rgb_init_mlib(SwsContext *c);
-SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c);
-SwsFunc ff_yuv2rgb_get_func_ptr_bfin(SwsContext *c);
-void ff_bfin_get_unscaled_swscale(SwsContext *c);
-void ff_yuv2packedX_altivec(SwsContext *c,
- const int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
- const int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
- uint8_t *dest, int dstW, int dstY);
-
-const char *sws_format_name(enum PixelFormat format);
-
-//FIXME replace this with something faster
-#define is16BPS(x) ( \
- (x)==PIX_FMT_GRAY16BE \
- || (x)==PIX_FMT_GRAY16LE \
- || (x)==PIX_FMT_RGB48BE \
- || (x)==PIX_FMT_RGB48LE \
- || (x)==PIX_FMT_YUV420P16LE \
- || (x)==PIX_FMT_YUV422P16LE \
- || (x)==PIX_FMT_YUV444P16LE \
- || (x)==PIX_FMT_YUV420P16BE \
- || (x)==PIX_FMT_YUV422P16BE \
- || (x)==PIX_FMT_YUV444P16BE \
- )
-#define isBE(x) ((x)&1)
-#define isPlanar8YUV(x) ( \
- (x)==PIX_FMT_YUV410P \
- || (x)==PIX_FMT_YUV420P \
- || (x)==PIX_FMT_YUVA420P \
- || (x)==PIX_FMT_YUV411P \
- || (x)==PIX_FMT_YUV422P \
- || (x)==PIX_FMT_YUV444P \
- || (x)==PIX_FMT_YUV440P \
- || (x)==PIX_FMT_NV12 \
- || (x)==PIX_FMT_NV21 \
- )
-#define isPlanarYUV(x) ( \
- isPlanar8YUV(x) \
- || (x)==PIX_FMT_YUV420P16LE \
- || (x)==PIX_FMT_YUV422P16LE \
- || (x)==PIX_FMT_YUV444P16LE \
- || (x)==PIX_FMT_YUV420P16BE \
- || (x)==PIX_FMT_YUV422P16BE \
- || (x)==PIX_FMT_YUV444P16BE \
- )
-#define isYUV(x) ( \
- (x)==PIX_FMT_UYVY422 \
- || (x)==PIX_FMT_YUYV422 \
- || isPlanarYUV(x) \
- )
-#define isGray(x) ( \
- (x)==PIX_FMT_GRAY8 \
- || (x)==PIX_FMT_GRAY16BE \
- || (x)==PIX_FMT_GRAY16LE \
- )
-#define isGray16(x) ( \
- (x)==PIX_FMT_GRAY16BE \
- || (x)==PIX_FMT_GRAY16LE \
- )
-#define isRGB(x) ( \
- (x)==PIX_FMT_RGB48BE \
- || (x)==PIX_FMT_RGB48LE \
- || (x)==PIX_FMT_RGB32 \
- || (x)==PIX_FMT_RGB32_1 \
- || (x)==PIX_FMT_RGB24 \
- || (x)==PIX_FMT_RGB565 \
- || (x)==PIX_FMT_RGB555 \
- || (x)==PIX_FMT_RGB8 \
- || (x)==PIX_FMT_RGB4 \
- || (x)==PIX_FMT_RGB4_BYTE \
- || (x)==PIX_FMT_MONOBLACK \
- || (x)==PIX_FMT_MONOWHITE \
- )
-#define isBGR(x) ( \
- (x)==PIX_FMT_BGR32 \
- || (x)==PIX_FMT_BGR32_1 \
- || (x)==PIX_FMT_BGR24 \
- || (x)==PIX_FMT_BGR565 \
- || (x)==PIX_FMT_BGR555 \
- || (x)==PIX_FMT_BGR8 \
- || (x)==PIX_FMT_BGR4 \
- || (x)==PIX_FMT_BGR4_BYTE \
- || (x)==PIX_FMT_MONOBLACK \
- || (x)==PIX_FMT_MONOWHITE \
- )
-#define isALPHA(x) ( \
- (x)==PIX_FMT_BGR32 \
- || (x)==PIX_FMT_BGR32_1 \
- || (x)==PIX_FMT_RGB32 \
- || (x)==PIX_FMT_RGB32_1 \
- || (x)==PIX_FMT_YUVA420P \
- )
-
-static inline int fmt_depth(enum PixelFormat fmt)
+const char *sws_format_name(enum AVPixelFormat format);
+
+static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt)
{
- switch(fmt) {
- case PIX_FMT_RGB48BE:
- case PIX_FMT_RGB48LE:
- return 48;
- case PIX_FMT_BGRA:
- case PIX_FMT_ABGR:
- case PIX_FMT_RGBA:
- case PIX_FMT_ARGB:
- return 32;
- case PIX_FMT_BGR24:
- case PIX_FMT_RGB24:
- return 24;
- case PIX_FMT_BGR565:
- case PIX_FMT_RGB565:
- case PIX_FMT_GRAY16BE:
- case PIX_FMT_GRAY16LE:
- return 16;
- case PIX_FMT_BGR555:
- case PIX_FMT_RGB555:
- return 15;
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB8:
- return 8;
- case PIX_FMT_BGR4:
- case PIX_FMT_RGB4:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_RGB4_BYTE:
- return 4;
- case PIX_FMT_MONOBLACK:
- case PIX_FMT_MONOWHITE:
- return 1;
- default:
- return 0;
- }
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return desc->comp[0].depth == 16;
+}
+
+static av_always_inline int is9_OR_10BPS(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return desc->comp[0].depth == 9 || desc->comp[0].depth == 10;
+}
+
+static av_always_inline int isBE(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return desc->flags & AV_PIX_FMT_FLAG_BE;
+}
+
+static av_always_inline int isYUV(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components >= 2;
+}
+
+static av_always_inline int isPlanarYUV(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return ((desc->flags & AV_PIX_FMT_FLAG_PLANAR) && isYUV(pix_fmt));
+}
+
+static av_always_inline int isRGB(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return (desc->flags & AV_PIX_FMT_FLAG_RGB);
+}
+
+#if 0 // FIXME
+#define isGray(x) \
+ (!(av_pix_fmt_descriptors[x].flags & AV_PIX_FMT_FLAG_PAL) && \
+ av_pix_fmt_descriptors[x].nb_components <= 2)
+#else
+#define isGray(x) \
+ ((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)
+#endif
+
+#define isRGBinInt(x) \
+ ((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)
+
+#define isBGRinInt(x) \
+ ((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)
+
+#define isAnyRGB(x) \
+ (isRGBinInt(x) || \
+ isBGRinInt(x))
+
+static av_always_inline int isALPHA(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return desc->nb_components == 2 || desc->nb_components == 4;
+}
+
+static av_always_inline int isPacked(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return ((desc->nb_components >= 2 && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR)) ||
+ pix_fmt == AV_PIX_FMT_PAL8);
+}
+
+static av_always_inline int isPlanar(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return (desc->nb_components >= 2 && (desc->flags & AV_PIX_FMT_FLAG_PLANAR));
+}
+
+static av_always_inline int isPackedRGB(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return ((desc->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) == AV_PIX_FMT_FLAG_RGB);
+}
+
+static av_always_inline int isPlanarRGB(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return ((desc->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) ==
+ (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB));
+}
+
+static av_always_inline int usePal(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ return ((desc->flags & AV_PIX_FMT_FLAG_PAL) || (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) ||
+ pix_fmt == AV_PIX_FMT_YA8);
}
extern const uint64_t ff_dither4[2];
extern const uint64_t ff_dither8[2];
+extern const uint8_t ff_dither_4x4_16[4][8];
+extern const uint8_t ff_dither_8x8_32[8][8];
+extern const uint8_t ff_dither_8x8_73[8][8];
+extern const uint8_t ff_dither_8x8_128[8][8];
+extern const uint8_t ff_dither_8x8_220[8][8];
+
+extern const int32_t ff_yuv2rgb_coeffs[8][4];
+
extern const AVClass sws_context_class;
+/**
+ * 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(SwsContext *c);
+void ff_get_unscaled_swscale_ppc(SwsContext *c);
+
+/**
+ * Return function pointer to fastest main scaler path function depending
+ * on architecture and available optimizations.
+ */
+SwsFunc ff_getSwsFunc(SwsContext *c);
+
+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);
+
#endif /* SWSCALE_SWSCALE_INTERNAL_H */
projects / ffmpeg / blobdiff