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ffmpeg / libswscale / swscale_internal.h @ 911406f2

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/*
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 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#ifndef SWSCALE_INTERNAL_H
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#define SWSCALE_INTERNAL_H
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#ifdef HAVE_ALTIVEC_H
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#include <altivec.h>
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#endif
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#include "avutil.h"
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#ifdef CONFIG_DARWIN
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#define AVV(x...) (x)
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#else
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#define AVV(x...) {x}
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#endif
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#define MAX_FILTER_SIZE 256
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typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
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             int srcSliceH, uint8_t* dst[], int dstStride[]);
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/* this struct should be aligned on at least 32-byte boundary */
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typedef struct SwsContext{
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        /**
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         * info on struct for av_log
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         */
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        AVClass *av_class;
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        /**
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         *
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         * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here
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         */
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        SwsFunc swScale;
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        int srcW, srcH, dstH;
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        int chrSrcW, chrSrcH, chrDstW, chrDstH;
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        int lumXInc, chrXInc;
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        int lumYInc, chrYInc;
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        int dstFormat, srcFormat;               ///< format 4:2:0 type is always YV12
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        int origDstFormat, origSrcFormat;       ///< format
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        int chrSrcHSubSample, chrSrcVSubSample;
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        int chrIntHSubSample, chrIntVSubSample;
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        int chrDstHSubSample, chrDstVSubSample;
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        int vChrDrop;
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        int sliceDir;
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        double param[2];
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        int16_t **lumPixBuf;
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        int16_t **chrPixBuf;
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        int16_t *hLumFilter;
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        int16_t *hLumFilterPos;
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        int16_t *hChrFilter;
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        int16_t *hChrFilterPos;
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        int16_t *vLumFilter;
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        int16_t *vLumFilterPos;
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        int16_t *vChrFilter;
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        int16_t *vChrFilterPos;
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        uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change a lot of code for this to be useful
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        int hLumFilterSize;
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        int hChrFilterSize;
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        int vLumFilterSize;
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        int vChrFilterSize;
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        int vLumBufSize;
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        int vChrBufSize;
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        uint8_t *funnyYCode;
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        uint8_t *funnyUVCode;
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        int32_t *lumMmx2FilterPos;
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        int32_t *chrMmx2FilterPos;
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        int16_t *lumMmx2Filter;
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        int16_t *chrMmx2Filter;
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        int canMMX2BeUsed;
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        int lastInLumBuf;
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        int lastInChrBuf;
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        int lumBufIndex;
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        int chrBufIndex;
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        int dstY;
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        int flags;
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        void * yuvTable;                        // pointer to the yuv->rgb table start so it can be freed()
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        uint8_t * table_rV[256];
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        uint8_t * table_gU[256];
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        int    table_gV[256];
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        uint8_t * table_bU[256];
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        //Colorspace stuff
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        int contrast, brightness, saturation;        // for sws_getColorspaceDetails
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        int srcColorspaceTable[4];
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        int dstColorspaceTable[4];
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        int srcRange, dstRange;
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#define RED_DITHER   "0*8"
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#define GREEN_DITHER "1*8"
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#define BLUE_DITHER  "2*8"
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#define Y_COEFF      "3*8"
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#define VR_COEFF     "4*8"
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#define UB_COEFF     "5*8"
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#define VG_COEFF     "6*8"
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#define UG_COEFF     "7*8"
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#define Y_OFFSET     "8*8"
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#define U_OFFSET     "9*8"
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#define V_OFFSET     "10*8"
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#define LUM_MMX_FILTER_OFFSET "11*8"
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#define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
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#define DSTW_OFFSET  "11*8+4*4*256*2" //do not change, its hardcoded in the asm
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#define ESP_OFFSET  "11*8+4*4*256*2+8"
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#define VROUNDER_OFFSET "11*8+4*4*256*2+16"
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#define U_TEMP       "11*8+4*4*256*2+24"
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#define V_TEMP       "11*8+4*4*256*2+32"
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        uint64_t redDither   __attribute__((aligned(8)));
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        uint64_t greenDither __attribute__((aligned(8)));
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        uint64_t blueDither  __attribute__((aligned(8)));
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        uint64_t yCoeff      __attribute__((aligned(8)));
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        uint64_t vrCoeff     __attribute__((aligned(8)));
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        uint64_t ubCoeff     __attribute__((aligned(8)));
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        uint64_t vgCoeff     __attribute__((aligned(8)));
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        uint64_t ugCoeff     __attribute__((aligned(8)));
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        uint64_t yOffset     __attribute__((aligned(8)));
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        uint64_t uOffset     __attribute__((aligned(8)));
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        uint64_t vOffset     __attribute__((aligned(8)));
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        int32_t  lumMmxFilter[4*MAX_FILTER_SIZE];
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        int32_t  chrMmxFilter[4*MAX_FILTER_SIZE];
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        int dstW;
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        uint64_t esp __attribute__((aligned(8)));
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        uint64_t vRounder     __attribute__((aligned(8)));
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        uint64_t u_temp       __attribute__((aligned(8)));
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        uint64_t v_temp       __attribute__((aligned(8)));
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#ifdef HAVE_ALTIVEC
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  vector signed short   CY;
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  vector signed short   CRV;
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  vector signed short   CBU;
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  vector signed short   CGU;
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  vector signed short   CGV;
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  vector signed short   OY;
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  vector unsigned short CSHIFT;
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  vector signed short *vYCoeffsBank, *vCCoeffsBank;
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#endif
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} SwsContext;
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//FIXME check init (where 0)
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SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
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int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);
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char *sws_format_name(int format);
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//FIXME replace this with something faster
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#define isPlanarYUV(x) ((x)==PIX_FMT_YUV410P || (x)==PIX_FMT_YUV420P        \
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                        || (x)==PIX_FMT_YUV411P || (x)==PIX_FMT_YUV422P        \
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                        || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_NV12        \
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                        || (x)==PIX_FMT_NV21)
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#define isYUV(x)       ((x)==PIX_FMT_UYVY422 || (x)==PIX_FMT_YUYV422 || isPlanarYUV(x))
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#define isGray(x)      ((x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
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#define isGray16(x)    ((x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
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#define isRGB(x)       ((x)==PIX_FMT_BGR32 || (x)==PIX_FMT_RGB24        \
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                        || (x)==PIX_FMT_RGB565 || (x)==PIX_FMT_RGB555        \
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                        || (x)==PIX_FMT_RGB8 || (x)==PIX_FMT_RGB4 || (x)==PIX_FMT_RGB4_BYTE        \
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                        || (x)==PIX_FMT_MONOBLACK)
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#define isBGR(x)       ((x)==PIX_FMT_RGB32 || (x)==PIX_FMT_BGR24        \
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                        || (x)==PIX_FMT_BGR565 || (x)==PIX_FMT_BGR555        \
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                        || (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_BGR4 || (x)==PIX_FMT_BGR4_BYTE        \
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                        || (x)==PIX_FMT_MONOBLACK)
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static inline int fmt_depth(int fmt)
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{
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    switch(fmt) {
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        case PIX_FMT_BGRA:
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        case PIX_FMT_ABGR:
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        case PIX_FMT_RGBA:
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        case PIX_FMT_ARGB:
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            return 32;
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        case PIX_FMT_BGR24:
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        case PIX_FMT_RGB24:
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            return 24;
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        case PIX_FMT_BGR565:
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        case PIX_FMT_RGB565:
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        case PIX_FMT_GRAY16BE:
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        case PIX_FMT_GRAY16LE:
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            return 16;
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        case PIX_FMT_BGR555:
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        case PIX_FMT_RGB555:
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            return 15;
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        case PIX_FMT_BGR8:
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        case PIX_FMT_RGB8:
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            return 8;
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        case PIX_FMT_BGR4:
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        case PIX_FMT_RGB4:
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        case PIX_FMT_BGR4_BYTE:
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        case PIX_FMT_RGB4_BYTE:
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            return 4;
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        case PIX_FMT_MONOBLACK:
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            return 1;
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        default:
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            return 0;
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    }
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}
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#endif