diff options
Diffstat (limited to 'libswscale/swscale_internal.h')
-rw-r--r-- | libswscale/swscale_internal.h | 462 |
1 files changed, 356 insertions, 106 deletions
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h index adfe170..0f51df9 100644 --- a/libswscale/swscale_internal.h +++ b/libswscale/swscale_internal.h @@ -1,20 +1,20 @@ /* - * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> + * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg 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. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -22,10 +22,12 @@ #define SWSCALE_SWSCALE_INTERNAL_H #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" @@ -33,9 +35,12 @@ #define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long -#define FAST_BGR2YV12 // use 7-bit instead of 15-bit coefficients +#define YUVRGB_TABLE_HEADROOM 512 +#define YUVRGB_TABLE_LUMA_HEADROOM 512 -#define MAX_FILTER_SIZE 256 +#define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE + +#define DITHER1XBPP #if HAVE_BIGENDIAN #define ALT32_CORR (-1) @@ -53,8 +58,27 @@ # define APCK_SIZE 16 #endif +#define RETCODE_USE_CASCADE -12345 + struct SwsContext; +typedef 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, +} SwsDither; + +typedef enum SwsAlphaBlend { + SWS_ALPHA_BLEND_NONE = 0, + SWS_ALPHA_BLEND_UNIFORM, + SWS_ALPHA_BLEND_CHECKERBOARD, + SWS_ALPHA_BLEND_NB, +} SwsAlphaBlend; + typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]); @@ -249,6 +273,9 @@ typedef void (*yuv2anyX_fn)(struct SwsContext *c, const int16_t *lumFilter, const int16_t **alpSrc, uint8_t **dest, int dstW, int y); +struct SwsSlice; +struct SwsFilterDescriptor; + /* This struct should be aligned on at least a 32-byte boundary. */ typedef struct SwsContext { /** @@ -283,6 +310,29 @@ typedef struct SwsContext { int sliceDir; ///< Direction that slices are fed to the scaler (1 = top-to-bottom, -1 = bottom-to-top). double param[2]; ///< Input parameters for scaling algorithms that need them. + /* The cascaded_* fields allow spliting a scaler task into multiple + * sequential steps, this is for example used to limit the maximum + * downscaling factor that needs to be supported in one scaler. + */ + struct SwsContext *cascaded_context[3]; + int cascaded_tmpStride[4]; + uint8_t *cascaded_tmp[4]; + int cascaded1_tmpStride[4]; + uint8_t *cascaded1_tmp[4]; + int cascaded_mainindex; + + double gamma_value; + int gamma_flag; + int is_internal_gamma; + uint16_t *gamma; + uint16_t *inv_gamma; + + int numDesc; + int descIndex[2]; + int numSlice; + struct SwsSlice *slice; + struct SwsFilterDescriptor *desc; + uint32_t pal_yuv[256]; uint32_t pal_rgb[256]; @@ -296,12 +346,6 @@ typedef struct SwsContext { * vertical scaler is called. */ //@{ - int16_t **lumPixBuf; ///< Ring buffer for scaled horizontal luma 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. @@ -309,6 +353,7 @@ typedef struct SwsContext { //@} uint8_t *formatConvBuffer; + int needAlpha; /** * @name Horizontal and vertical filters. @@ -344,14 +389,30 @@ typedef struct SwsContext { uint8_t *chrMmxextFilterCode; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code for chroma planes. int canMMXEXTBeUsed; + int warned_unuseable_bilinear; 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]; + // alignment ensures the offset can be added in a single + // instruction on e.g. ARM + DECLARE_ALIGNED(16, int, table_gV)[256 + 2*YUVRGB_TABLE_HEADROOM]; + uint8_t *table_rV[256 + 2*YUVRGB_TABLE_HEADROOM]; + uint8_t *table_gU[256 + 2*YUVRGB_TABLE_HEADROOM]; + uint8_t *table_bU[256 + 2*YUVRGB_TABLE_HEADROOM]; + DECLARE_ALIGNED(16, int32_t, input_rgb2yuv_table)[16+40*4]; // This table can contain both C and SIMD formatted values, the C vales are always at the XY_IDX points +#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 + + int *dither_error[4]; //Colorspace stuff int contrast, brightness, saturation; // for sws_getColorspaceDetails @@ -359,6 +420,14 @@ typedef struct SwsContext { int dstColorspaceTable[4]; int srcRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (source image). int dstRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (destination image). + int src0Alpha; + int dst0Alpha; + int srcXYZ; + int dstXYZ; + int src_h_chr_pos; + int dst_h_chr_pos; + int src_v_chr_pos; + int dst_v_chr_pos; int yuv2rgb_y_offset; int yuv2rgb_y_coeff; int yuv2rgb_v2r_coeff; @@ -378,18 +447,19 @@ typedef struct SwsContext { #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*256" -#define DSTW_OFFSET "11*8+4*4*256*2" //do not change, it is hardcoded in the ASM -#define ESP_OFFSET "11*8+4*4*256*2+8" -#define VROUNDER_OFFSET "11*8+4*4*256*2+16" -#define U_TEMP "11*8+4*4*256*2+24" -#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" +#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) // value equal to above, used for checking that the struct hasn't been changed by mistake DECLARE_ALIGNED(8, uint64_t, redDither); DECLARE_ALIGNED(8, uint64_t, greenDither); @@ -415,8 +485,8 @@ typedef struct SwsContext { // 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, ptrdiff_t, uv_off); ///< offset (in pixels) between u and v planes + DECLARE_ALIGNED(8, ptrdiff_t, uv_offx2); ///< offset (in bytes) between u and v planes DECLARE_ALIGNED(8, uint16_t, dither16)[8]; DECLARE_ALIGNED(8, uint32_t, dither32)[8]; @@ -433,6 +503,18 @@ typedef struct SwsContext { vector signed short *vYCoeffsBank, *vCCoeffsBank; #endif + int use_mmx_vfilter; + +/* pre defined color-spaces gamma */ +#define XYZ_GAMMA (2.6f) +#define RGB_GAMMA (2.2f) + int16_t *xyzgamma; + int16_t *rgbgamma; + int16_t *xyzgammainv; + int16_t *rgbgammainv; + int16_t xyz2rgb_matrix[3][4]; + int16_t rgb2xyz_matrix[3][4]; + /* function pointers for swscale() */ yuv2planar1_fn yuv2plane1; yuv2planarX_fn yuv2planeX; @@ -443,14 +525,14 @@ typedef struct SwsContext { yuv2anyX_fn yuv2anyX; /// Unscaled conversion of luma plane to YV12 for horizontal scaler. - void (*lumToYV12)(uint8_t *dst, const uint8_t *src, + 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 alpha plane to YV12 for horizontal scaler. - void (*alpToYV12)(uint8_t *dst, const uint8_t *src, + 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 chroma planes to YV12 for horizontal scaler. void (*chrToYV12)(uint8_t *dstU, uint8_t *dstV, - const uint8_t *src1, const uint8_t *src2, + const uint8_t *src1, const uint8_t *src2, const uint8_t *src3, int width, uint32_t *pal); /** @@ -458,10 +540,10 @@ typedef struct SwsContext { * internally to Y/UV/A. */ /** @{ */ - void (*readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width); + void (*readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv); 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); + int width, int32_t *rgb2yuv); + void (*readAlpPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv); /** @} */ /** @@ -537,6 +619,10 @@ typedef struct SwsContext { void (*chrConvertRange)(int16_t *dst1, int16_t *dst2, int width); int needs_hcscale; ///< Set if there are chroma planes to be converted. + + SwsDither dither; + + SwsAlphaBlend alphablend; } SwsContext; //FIXME check init (where 0) @@ -547,14 +633,14 @@ int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], 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, +void ff_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); -const char *sws_format_name(enum AVPixelFormat format); - static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt) { const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); @@ -562,11 +648,11 @@ static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt) return desc->comp[0].depth == 16; } -static av_always_inline int is9_15BPS(enum AVPixelFormat pix_fmt) +static av_always_inline int isNBPS(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 <= 15; + return desc->comp[0].depth >= 9 && desc->comp[0].depth <= 14; } static av_always_inline int isBE(enum AVPixelFormat pix_fmt) @@ -597,73 +683,92 @@ static av_always_inline int isRGB(enum AVPixelFormat pix_fmt) return (desc->flags & AV_PIX_FMT_FLAG_RGB); } -#define isGray(x) \ - ((x) == AV_PIX_FMT_GRAY8 || \ - (x) == AV_PIX_FMT_YA8 || \ - (x) == AV_PIX_FMT_GRAY12BE || \ - (x) == AV_PIX_FMT_GRAY12LE || \ - (x) == AV_PIX_FMT_GRAY16BE || \ - (x) == AV_PIX_FMT_GRAY16LE || \ - (x) == AV_PIX_FMT_YA16BE || \ - (x) == AV_PIX_FMT_YA16LE) - -#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 isGray(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_HWACCEL) && + desc->nb_components <= 2 && + pix_fmt != AV_PIX_FMT_MONOBLACK && + pix_fmt != AV_PIX_FMT_MONOWHITE; +} + +static av_always_inline int isRGBinInt(enum AVPixelFormat pix_fmt) +{ + return pix_fmt == AV_PIX_FMT_RGB48BE || + pix_fmt == AV_PIX_FMT_RGB48LE || + pix_fmt == AV_PIX_FMT_RGB32 || + pix_fmt == AV_PIX_FMT_RGB32_1 || + pix_fmt == AV_PIX_FMT_RGB24 || + pix_fmt == AV_PIX_FMT_RGB565BE || + pix_fmt == AV_PIX_FMT_RGB565LE || + pix_fmt == AV_PIX_FMT_RGB555BE || + pix_fmt == AV_PIX_FMT_RGB555LE || + pix_fmt == AV_PIX_FMT_RGB444BE || + pix_fmt == AV_PIX_FMT_RGB444LE || + pix_fmt == AV_PIX_FMT_RGB8 || + pix_fmt == AV_PIX_FMT_RGB4 || + pix_fmt == AV_PIX_FMT_RGB4_BYTE || + pix_fmt == AV_PIX_FMT_RGBA64BE || + pix_fmt == AV_PIX_FMT_RGBA64LE || + pix_fmt == AV_PIX_FMT_MONOBLACK || + pix_fmt == AV_PIX_FMT_MONOWHITE; +} + +static av_always_inline int isBGRinInt(enum AVPixelFormat pix_fmt) +{ + return pix_fmt == AV_PIX_FMT_BGR48BE || + pix_fmt == AV_PIX_FMT_BGR48LE || + pix_fmt == AV_PIX_FMT_BGR32 || + pix_fmt == AV_PIX_FMT_BGR32_1 || + pix_fmt == AV_PIX_FMT_BGR24 || + pix_fmt == AV_PIX_FMT_BGR565BE || + pix_fmt == AV_PIX_FMT_BGR565LE || + pix_fmt == AV_PIX_FMT_BGR555BE || + pix_fmt == AV_PIX_FMT_BGR555LE || + pix_fmt == AV_PIX_FMT_BGR444BE || + pix_fmt == AV_PIX_FMT_BGR444LE || + pix_fmt == AV_PIX_FMT_BGR8 || + pix_fmt == AV_PIX_FMT_BGR4 || + pix_fmt == AV_PIX_FMT_BGR4_BYTE || + pix_fmt == AV_PIX_FMT_BGRA64BE || + pix_fmt == AV_PIX_FMT_BGRA64LE || + pix_fmt == AV_PIX_FMT_MONOBLACK || + pix_fmt == AV_PIX_FMT_MONOWHITE; +} + +static av_always_inline int isBayer(enum AVPixelFormat pix_fmt) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); + av_assert0(desc); + return !!(desc->flags & AV_PIX_FMT_FLAG_BAYER); +} + +static av_always_inline int isAnyRGB(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) || + pix_fmt == AV_PIX_FMT_MONOBLACK || pix_fmt == AV_PIX_FMT_MONOWHITE; +} 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; + if (pix_fmt == AV_PIX_FMT_PAL8) + return 1; + return desc->flags & AV_PIX_FMT_FLAG_ALPHA; } 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); + return (desc->nb_components >= 2 && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR)) || + pix_fmt == AV_PIX_FMT_PAL8 || + pix_fmt == AV_PIX_FMT_MONOBLACK || pix_fmt == AV_PIX_FMT_MONOWHITE; } static av_always_inline int isPlanar(enum AVPixelFormat pix_fmt) @@ -692,20 +797,21 @@ 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); + return (desc->flags & AV_PIX_FMT_FLAG_PAL) || (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL); } 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 uint8_t ff_dither_2x2_4[3][8]; +extern const uint8_t ff_dither_2x2_8[3][8]; +extern const uint8_t ff_dither_4x4_16[5][8]; +extern const uint8_t ff_dither_8x8_32[9][8]; +extern const uint8_t ff_dither_8x8_73[9][8]; +extern const uint8_t ff_dither_8x8_128[9][8]; +extern const uint8_t ff_dither_8x8_220[9][8]; -extern const int32_t ff_yuv2rgb_coeffs[8][4]; +extern const int32_t ff_yuv2rgb_coeffs[11][4]; extern const AVClass ff_sws_context_class; @@ -715,6 +821,8 @@ extern const AVClass ff_sws_context_class; */ void ff_get_unscaled_swscale(SwsContext *c); void ff_get_unscaled_swscale_ppc(SwsContext *c); +void ff_get_unscaled_swscale_arm(SwsContext *c); +void ff_get_unscaled_swscale_aarch64(SwsContext *c); /** * Return function pointer to fastest main scaler path function depending @@ -733,5 +841,147 @@ void ff_sws_init_output_funcs(SwsContext *c, yuv2anyX_fn *yuv2anyX); void ff_sws_init_swscale_ppc(SwsContext *c); void ff_sws_init_swscale_x86(SwsContext *c); +void ff_sws_init_swscale_aarch64(SwsContext *c); +void ff_sws_init_swscale_arm(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); + +/** + * Allocate and return an SwsContext. + * This is like sws_getContext() but does not perform the init step, allowing + * the user to set additional AVOptions. + * + * @see sws_getContext() + */ +struct SwsContext *sws_alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat, + int dstW, int dstH, enum AVPixelFormat dstFormat, + int flags, const double *param); + +int ff_sws_alphablendaway(SwsContext *c, const uint8_t *src[], + int srcStride[], int srcSliceY, int srcSliceH, + uint8_t *dst[], int dstStride[]); + +static inline void fillPlane16(uint8_t *plane, int stride, int width, int height, int y, + int alpha, int bits, const int big_endian) +{ + int i, j; + uint8_t *ptr = plane + stride * y; + int v = alpha ? 0xFFFF>>(16-bits) : (1<<(bits-1)); + for (i = 0; i < height; i++) { +#define FILL(wfunc) \ + for (j = 0; j < width; j++) {\ + wfunc(ptr+2*j, v);\ + } + if (big_endian) { + FILL(AV_WB16); + } else { + FILL(AV_WL16); + } + ptr += stride; + } +} + +#define MAX_SLICE_PLANES 4 + +/// Slice plane +typedef struct SwsPlane +{ + int available_lines; ///< max number of lines that can be hold by this plane + int sliceY; ///< index of first line + int sliceH; ///< number of lines + uint8_t **line; ///< line buffer + uint8_t **tmp; ///< Tmp line buffer used by mmx code +} SwsPlane; + +/** + * Struct which defines a slice of an image to be scaled or an output for + * a scaled slice. + * A slice can also be used as intermediate ring buffer for scaling steps. + */ +typedef struct SwsSlice +{ + int width; ///< Slice line width + int h_chr_sub_sample; ///< horizontal chroma subsampling factor + int v_chr_sub_sample; ///< vertical chroma subsampling factor + int is_ring; ///< flag to identify if this slice is a ring buffer + int should_free_lines; ///< flag to identify if there are dynamic allocated lines + enum AVPixelFormat fmt; ///< planes pixel format + SwsPlane plane[MAX_SLICE_PLANES]; ///< color planes +} SwsSlice; + +/** + * Struct which holds all necessary data for processing a slice. + * A processing step can be a color conversion or horizontal/vertical scaling. + */ +typedef struct SwsFilterDescriptor +{ + SwsSlice *src; ///< Source slice + SwsSlice *dst; ///< Output slice + + int alpha; ///< Flag for processing alpha channel + void *instance; ///< Filter instance data + + /// Function for processing input slice sliceH lines starting from line sliceY + int (*process)(SwsContext *c, struct SwsFilterDescriptor *desc, int sliceY, int sliceH); +} SwsFilterDescriptor; + +// warp input lines in the form (src + width*i + j) to slice format (line[i][j]) +// relative=true means first line src[x][0] otherwise first line is src[x][lum/crh Y] +int ff_init_slice_from_src(SwsSlice * s, uint8_t *src[4], int stride[4], int srcW, int lumY, int lumH, int chrY, int chrH, int relative); + +// Initialize scaler filter descriptor chain +int ff_init_filters(SwsContext *c); + +// Free all filter data +int ff_free_filters(SwsContext *c); + +/* + function for applying ring buffer logic into slice s + It checks if the slice can hold more @lum lines, if yes + do nothing otherwise remove @lum least used lines. + It applies the same procedure for @chr lines. +*/ +int ff_rotate_slice(SwsSlice *s, int lum, int chr); + +/// initializes gamma conversion descriptor +int ff_init_gamma_convert(SwsFilterDescriptor *desc, SwsSlice * src, uint16_t *table); + +/// initializes lum pixel format conversion descriptor +int ff_init_desc_fmt_convert(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst, uint32_t *pal); + +/// initializes lum horizontal scaling descriptor +int ff_init_desc_hscale(SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst, uint16_t *filter, int * filter_pos, int filter_size, int xInc); + +/// initializes chr pixel format conversion descriptor +int ff_init_desc_cfmt_convert(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst, uint32_t *pal); + +/// initializes chr horizontal scaling descriptor +int ff_init_desc_chscale(SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst, uint16_t *filter, int * filter_pos, int filter_size, int xInc); + +int ff_init_desc_no_chr(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst); + +/// initializes vertical scaling descriptors +int ff_init_vscale(SwsContext *c, SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst); + +/// setup vertical scaler functions +void ff_init_vscale_pfn(SwsContext *c, yuv2planar1_fn yuv2plane1, yuv2planarX_fn yuv2planeX, + yuv2interleavedX_fn yuv2nv12cX, yuv2packed1_fn yuv2packed1, yuv2packed2_fn yuv2packed2, + yuv2packedX_fn yuv2packedX, yuv2anyX_fn yuv2anyX, int use_mmx); + +//number of extra lines to process +#define MAX_LINES_AHEAD 4 #endif /* SWSCALE_SWSCALE_INTERNAL_H */ |