output.c 106 KB
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/*
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 * Copyright (C) 2001-2012 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
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
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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
 * 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
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <math.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

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#include "libavutil/attributes.h"
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#include "libavutil/avutil.h"
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#include "libavutil/avassert.h"
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#include "libavutil/bswap.h"
#include "libavutil/cpu.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "config.h"
#include "rgb2rgb.h"
#include "swscale.h"
#include "swscale_internal.h"

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DECLARE_ALIGNED(8, const uint8_t, ff_dither_2x2_4)[][8] = {
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{  1,   3,   1,   3,   1,   3,   1,   3, },
{  2,   0,   2,   0,   2,   0,   2,   0, },
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{  1,   3,   1,   3,   1,   3,   1,   3, },
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};

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DECLARE_ALIGNED(8, const uint8_t, ff_dither_2x2_8)[][8] = {
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{  6,   2,   6,   2,   6,   2,   6,   2, },
{  0,   4,   0,   4,   0,   4,   0,   4, },
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{  6,   2,   6,   2,   6,   2,   6,   2, },
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};

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DECLARE_ALIGNED(8, const uint8_t, ff_dither_4x4_16)[][8] = {
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{  8,   4,  11,   7,   8,   4,  11,   7, },
{  2,  14,   1,  13,   2,  14,   1,  13, },
{ 10,   6,   9,   5,  10,   6,   9,   5, },
{  0,  12,   3,  15,   0,  12,   3,  15, },
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{  8,   4,  11,   7,   8,   4,  11,   7, },
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};

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DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_32)[][8] = {
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{ 17,   9,  23,  15,  16,   8,  22,  14, },
{  5,  29,   3,  27,   4,  28,   2,  26, },
{ 21,  13,  19,  11,  20,  12,  18,  10, },
{  0,  24,   6,  30,   1,  25,   7,  31, },
{ 16,   8,  22,  14,  17,   9,  23,  15, },
{  4,  28,   2,  26,   5,  29,   3,  27, },
{ 20,  12,  18,  10,  21,  13,  19,  11, },
{  1,  25,   7,  31,   0,  24,   6,  30, },
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{ 17,   9,  23,  15,  16,   8,  22,  14, },
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};

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DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_73)[][8] = {
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{  0,  55,  14,  68,   3,  58,  17,  72, },
{ 37,  18,  50,  32,  40,  22,  54,  35, },
{  9,  64,   5,  59,  13,  67,   8,  63, },
{ 46,  27,  41,  23,  49,  31,  44,  26, },
{  2,  57,  16,  71,   1,  56,  15,  70, },
{ 39,  21,  52,  34,  38,  19,  51,  33, },
{ 11,  66,   7,  62,  10,  65,   6,  60, },
{ 48,  30,  43,  25,  47,  29,  42,  24, },
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{  0,  55,  14,  68,   3,  58,  17,  72, },
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};

#if 1
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DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[][8] = {
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{117,  62, 158, 103, 113,  58, 155, 100, },
{ 34, 199,  21, 186,  31, 196,  17, 182, },
{144,  89, 131,  76, 141,  86, 127,  72, },
{  0, 165,  41, 206,  10, 175,  52, 217, },
{110,  55, 151,  96, 120,  65, 162, 107, },
{ 28, 193,  14, 179,  38, 203,  24, 189, },
{138,  83, 124,  69, 148,  93, 134,  79, },
{  7, 172,  48, 213,   3, 168,  45, 210, },
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{117,  62, 158, 103, 113,  58, 155, 100, },
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};
#elif 1
// tries to correct a gamma of 1.5
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DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[][8] = {
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{  0, 143,  18, 200,   2, 156,  25, 215, },
{ 78,  28, 125,  64,  89,  36, 138,  74, },
{ 10, 180,   3, 161,  16, 195,   8, 175, },
{109,  51,  93,  38, 121,  60, 105,  47, },
{  1, 152,  23, 210,   0, 147,  20, 205, },
{ 85,  33, 134,  71,  81,  30, 130,  67, },
{ 14, 190,   6, 171,  12, 185,   5, 166, },
{117,  57, 101,  44, 113,  54,  97,  41, },
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{  0, 143,  18, 200,   2, 156,  25, 215, },
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};
#elif 1
// tries to correct a gamma of 2.0
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DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[][8] = {
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{  0, 124,   8, 193,   0, 140,  12, 213, },
{ 55,  14, 104,  42,  66,  19, 119,  52, },
{  3, 168,   1, 145,   6, 187,   3, 162, },
{ 86,  31,  70,  21,  99,  39,  82,  28, },
{  0, 134,  11, 206,   0, 129,   9, 200, },
{ 62,  17, 114,  48,  58,  16, 109,  45, },
{  5, 181,   2, 157,   4, 175,   1, 151, },
{ 95,  36,  78,  26,  90,  34,  74,  24, },
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{  0, 124,   8, 193,   0, 140,  12, 213, },
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};
#else
// tries to correct a gamma of 2.5
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DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_220)[][8] = {
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{  0, 107,   3, 187,   0, 125,   6, 212, },
{ 39,   7,  86,  28,  49,  11, 102,  36, },
{  1, 158,   0, 131,   3, 180,   1, 151, },
{ 68,  19,  52,  12,  81,  25,  64,  17, },
{  0, 119,   5, 203,   0, 113,   4, 195, },
{ 45,   9,  96,  33,  42,   8,  91,  30, },
{  2, 172,   1, 144,   2, 165,   0, 137, },
{ 77,  23,  60,  15,  72,  21,  56,  14, },
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{  0, 107,   3, 187,   0, 125,   6, 212, },
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};
#endif

#define output_pixel(pos, val, bias, signedness) \
    if (big_endian) { \
        AV_WB16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
    } else { \
        AV_WL16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
    }

static av_always_inline void
yuv2plane1_16_c_template(const int32_t *src, uint16_t *dest, int dstW,
                         int big_endian, int output_bits)
{
    int i;
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    int shift = 3;
    av_assert0(output_bits == 16);
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    for (i = 0; i < dstW; i++) {
        int val = src[i] + (1 << (shift - 1));
        output_pixel(&dest[i], val, 0, uint);
    }
}

static av_always_inline void
yuv2planeX_16_c_template(const int16_t *filter, int filterSize,
                         const int32_t **src, uint16_t *dest, int dstW,
                         int big_endian, int output_bits)
{
    int i;
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    int shift = 15;
    av_assert0(output_bits == 16);
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    for (i = 0; i < dstW; i++) {
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        int val = 1 << (shift - 1);
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        int j;

        /* range of val is [0,0x7FFFFFFF], so 31 bits, but with lanczos/spline
         * filters (or anything with negative coeffs, the range can be slightly
         * wider in both directions. To account for this overflow, we subtract
         * a constant so it always fits in the signed range (assuming a
         * reasonable filterSize), and re-add that at the end. */
        val -= 0x40000000;
        for (j = 0; j < filterSize; j++)
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            val += src[j][i] * (unsigned)filter[j];
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        output_pixel(&dest[i], val, 0x8000, int);
    }
}

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static void yuv2p016cX_c(SwsContext *c, const int16_t *chrFilter, int chrFilterSize,
                         const int16_t **chrUSrc, const int16_t **chrVSrc,
                         uint8_t *dest8, int chrDstW)
{
    uint16_t *dest = (uint16_t*)dest8;
    const int32_t **uSrc = (const int32_t **)chrUSrc;
    const int32_t **vSrc = (const int32_t **)chrVSrc;
    int shift = 15;
    int big_endian = c->dstFormat == AV_PIX_FMT_P016BE;
    int i, j;

    for (i = 0; i < chrDstW; i++) {
        int u = 1 << (shift - 1);
        int v = 1 << (shift - 1);

        /* See yuv2planeX_16_c_template for details. */
        u -= 0x40000000;
        v -= 0x40000000;
        for (j = 0; j < chrFilterSize; j++) {
            u += uSrc[j][i] * (unsigned)chrFilter[j];
            v += vSrc[j][i] * (unsigned)chrFilter[j];
        }

        output_pixel(&dest[2*i]  , u, 0x8000, int);
        output_pixel(&dest[2*i+1], v, 0x8000, int);
    }
}

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static av_always_inline void
yuv2plane1_float_c_template(const int32_t *src, float *dest, int dstW)
{
    static const int big_endian = HAVE_BIGENDIAN;
    static const int shift = 3;
    static const float float_mult = 1.0f / 65535.0f;
    int i, val;
    uint16_t val_uint;

    for (i = 0; i < dstW; ++i){
        val = src[i] + (1 << (shift - 1));
        output_pixel(&val_uint, val, 0, uint);
        dest[i] = float_mult * (float)val_uint;
    }
}

static av_always_inline void
yuv2plane1_float_bswap_c_template(const int32_t *src, uint32_t *dest, int dstW)
{
    static const int big_endian = HAVE_BIGENDIAN;
    static const int shift = 3;
    static const float float_mult = 1.0f / 65535.0f;
    int i, val;
    uint16_t val_uint;

    for (i = 0; i < dstW; ++i){
        val = src[i] + (1 << (shift - 1));
        output_pixel(&val_uint, val, 0, uint);
        dest[i] = av_bswap32(av_float2int(float_mult * (float)val_uint));
    }
}

static av_always_inline void
yuv2planeX_float_c_template(const int16_t *filter, int filterSize, const int32_t **src,
                            float *dest, int dstW)
{
    static const int big_endian = HAVE_BIGENDIAN;
    static const int shift = 15;
    static const float float_mult = 1.0f / 65535.0f;
    int i, j, val;
    uint16_t val_uint;

    for (i = 0; i < dstW; ++i){
        val = (1 << (shift - 1)) - 0x40000000;
        for (j = 0; j < filterSize; ++j){
            val += src[j][i] * (unsigned)filter[j];
        }
        output_pixel(&val_uint, val, 0x8000, int);
        dest[i] = float_mult * (float)val_uint;
    }
}

static av_always_inline void
yuv2planeX_float_bswap_c_template(const int16_t *filter, int filterSize, const int32_t **src,
                            uint32_t *dest, int dstW)
{
    static const int big_endian = HAVE_BIGENDIAN;
    static const int shift = 15;
    static const float float_mult = 1.0f / 65535.0f;
    int i, j, val;
    uint16_t val_uint;

    for (i = 0; i < dstW; ++i){
        val = (1 << (shift - 1)) - 0x40000000;
        for (j = 0; j < filterSize; ++j){
            val += src[j][i] * (unsigned)filter[j];
        }
        output_pixel(&val_uint, val, 0x8000, int);
        dest[i] = av_bswap32(av_float2int(float_mult * (float)val_uint));
    }
}

#define yuv2plane1_float(template, dest_type, BE_LE) \
static void yuv2plane1_float ## BE_LE ## _c(const int16_t *src, uint8_t *dest, int dstW, \
                                            const uint8_t *dither, int offset) \
{ \
    template((const int32_t *)src, (dest_type *)dest, dstW); \
}

#define yuv2planeX_float(template, dest_type, BE_LE) \
static void yuv2planeX_float ## BE_LE ## _c(const int16_t *filter, int filterSize, \
                                            const int16_t **src, uint8_t *dest, int dstW, \
                                            const uint8_t *dither, int offset) \
{ \
    template(filter, filterSize, (const int32_t **)src, (dest_type *)dest, dstW); \
}

#if HAVE_BIGENDIAN
yuv2plane1_float(yuv2plane1_float_c_template,       float,    BE)
yuv2plane1_float(yuv2plane1_float_bswap_c_template, uint32_t, LE)
yuv2planeX_float(yuv2planeX_float_c_template,       float,    BE)
yuv2planeX_float(yuv2planeX_float_bswap_c_template, uint32_t, LE)
#else
yuv2plane1_float(yuv2plane1_float_c_template,       float,    LE)
yuv2plane1_float(yuv2plane1_float_bswap_c_template, uint32_t, BE)
yuv2planeX_float(yuv2planeX_float_c_template,       float,    LE)
yuv2planeX_float(yuv2planeX_float_bswap_c_template, uint32_t, BE)
#endif

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#undef output_pixel

#define output_pixel(pos, val) \
    if (big_endian) { \
        AV_WB16(pos, av_clip_uintp2(val >> shift, output_bits)); \
    } else { \
        AV_WL16(pos, av_clip_uintp2(val >> shift, output_bits)); \
    }

static av_always_inline void
yuv2plane1_10_c_template(const int16_t *src, uint16_t *dest, int dstW,
                         int big_endian, int output_bits)
{
    int i;
    int shift = 15 - output_bits;

    for (i = 0; i < dstW; i++) {
        int val = src[i] + (1 << (shift - 1));
        output_pixel(&dest[i], val);
    }
}

static av_always_inline void
yuv2planeX_10_c_template(const int16_t *filter, int filterSize,
                         const int16_t **src, uint16_t *dest, int dstW,
                         int big_endian, int output_bits)
{
    int i;
    int shift = 11 + 16 - output_bits;

    for (i = 0; i < dstW; i++) {
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        int val = 1 << (shift - 1);
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        int j;

        for (j = 0; j < filterSize; j++)
            val += src[j][i] * filter[j];

        output_pixel(&dest[i], val);
    }
}

#undef output_pixel

#define yuv2NBPS(bits, BE_LE, is_be, template_size, typeX_t) \
static void yuv2plane1_ ## bits ## BE_LE ## _c(const int16_t *src, \
                              uint8_t *dest, int dstW, \
                              const uint8_t *dither, int offset)\
{ \
    yuv2plane1_ ## template_size ## _c_template((const typeX_t *) src, \
                         (uint16_t *) dest, dstW, is_be, bits); \
}\
static void yuv2planeX_ ## bits ## BE_LE ## _c(const int16_t *filter, int filterSize, \
                              const int16_t **src, uint8_t *dest, int dstW, \
                              const uint8_t *dither, int offset)\
{ \
    yuv2planeX_## template_size ## _c_template(filter, \
                         filterSize, (const typeX_t **) src, \
                         (uint16_t *) dest, dstW, is_be, bits); \
}
yuv2NBPS( 9, BE, 1, 10, int16_t)
yuv2NBPS( 9, LE, 0, 10, int16_t)
yuv2NBPS(10, BE, 1, 10, int16_t)
yuv2NBPS(10, LE, 0, 10, int16_t)
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yuv2NBPS(12, BE, 1, 10, int16_t)
yuv2NBPS(12, LE, 0, 10, int16_t)
yuv2NBPS(14, BE, 1, 10, int16_t)
yuv2NBPS(14, LE, 0, 10, int16_t)
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yuv2NBPS(16, BE, 1, 16, int32_t)
yuv2NBPS(16, LE, 0, 16, int32_t)

static void yuv2planeX_8_c(const int16_t *filter, int filterSize,
                           const int16_t **src, uint8_t *dest, int dstW,
                           const uint8_t *dither, int offset)
{
    int i;
    for (i=0; i<dstW; i++) {
        int val = dither[(i + offset) & 7] << 12;
        int j;
        for (j=0; j<filterSize; j++)
            val += src[j][i] * filter[j];

        dest[i]= av_clip_uint8(val>>19);
    }
}

static void yuv2plane1_8_c(const int16_t *src, uint8_t *dest, int dstW,
                           const uint8_t *dither, int offset)
{
    int i;
    for (i=0; i<dstW; i++) {
        int val = (src[i] + dither[(i + offset) & 7]) >> 7;
        dest[i]= av_clip_uint8(val);
    }
}

static void yuv2nv12cX_c(SwsContext *c, const int16_t *chrFilter, int chrFilterSize,
                        const int16_t **chrUSrc, const int16_t **chrVSrc,
                        uint8_t *dest, int chrDstW)
{
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    enum AVPixelFormat dstFormat = c->dstFormat;
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    const uint8_t *chrDither = c->chrDither8;
    int i;

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    if (dstFormat == AV_PIX_FMT_NV12 ||
        dstFormat == AV_PIX_FMT_NV24)
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        for (i=0; i<chrDstW; i++) {
            int u = chrDither[i & 7] << 12;
            int v = chrDither[(i + 3) & 7] << 12;
            int j;
            for (j=0; j<chrFilterSize; j++) {
                u += chrUSrc[j][i] * chrFilter[j];
                v += chrVSrc[j][i] * chrFilter[j];
            }

            dest[2*i]= av_clip_uint8(u>>19);
            dest[2*i+1]= av_clip_uint8(v>>19);
        }
    else
        for (i=0; i<chrDstW; i++) {
            int u = chrDither[i & 7] << 12;
            int v = chrDither[(i + 3) & 7] << 12;
            int j;
            for (j=0; j<chrFilterSize; j++) {
                u += chrUSrc[j][i] * chrFilter[j];
                v += chrVSrc[j][i] * chrFilter[j];
            }

            dest[2*i]= av_clip_uint8(v>>19);
            dest[2*i+1]= av_clip_uint8(u>>19);
        }
}

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#define output_pixel(pos, val) \
    if (big_endian) { \
        AV_WB16(pos, av_clip_uintp2(val >> shift, 10) << 6); \
    } else { \
        AV_WL16(pos, av_clip_uintp2(val >> shift, 10) << 6); \
    }

static void yuv2p010l1_c(const int16_t *src,
                         uint16_t *dest, int dstW,
                         int big_endian)
{
    int i;
    int shift = 5;

    for (i = 0; i < dstW; i++) {
        int val = src[i] + (1 << (shift - 1));
        output_pixel(&dest[i], val);
    }
}

static void yuv2p010lX_c(const int16_t *filter, int filterSize,
                         const int16_t **src, uint16_t *dest, int dstW,
                         int big_endian)
{
    int i, j;
    int shift = 17;

    for (i = 0; i < dstW; i++) {
        int val = 1 << (shift - 1);

        for (j = 0; j < filterSize; j++)
            val += src[j][i] * filter[j];

        output_pixel(&dest[i], val);
    }
}

static void yuv2p010cX_c(SwsContext *c, const int16_t *chrFilter, int chrFilterSize,
                         const int16_t **chrUSrc, const int16_t **chrVSrc,
                         uint8_t *dest8, int chrDstW)
{
    uint16_t *dest = (uint16_t*)dest8;
    int shift = 17;
    int big_endian = c->dstFormat == AV_PIX_FMT_P010BE;
    int i, j;

    for (i = 0; i < chrDstW; i++) {
        int u = 1 << (shift - 1);
        int v = 1 << (shift - 1);

        for (j = 0; j < chrFilterSize; j++) {
            u += chrUSrc[j][i] * chrFilter[j];
            v += chrVSrc[j][i] * chrFilter[j];
        }

        output_pixel(&dest[2*i]  , u);
        output_pixel(&dest[2*i+1], v);
    }
}

static void yuv2p010l1_LE_c(const int16_t *src,
                            uint8_t *dest, int dstW,
                            const uint8_t *dither, int offset)
{
    yuv2p010l1_c(src, (uint16_t*)dest, dstW, 0);
}

static void yuv2p010l1_BE_c(const int16_t *src,
                            uint8_t *dest, int dstW,
                            const uint8_t *dither, int offset)
{
    yuv2p010l1_c(src, (uint16_t*)dest, dstW, 1);
}

static void yuv2p010lX_LE_c(const int16_t *filter, int filterSize,
                            const int16_t **src, uint8_t *dest, int dstW,
                            const uint8_t *dither, int offset)
{
    yuv2p010lX_c(filter, filterSize, src, (uint16_t*)dest, dstW, 0);
}

static void yuv2p010lX_BE_c(const int16_t *filter, int filterSize,
                            const int16_t **src, uint8_t *dest, int dstW,
                            const uint8_t *dither, int offset)
{
    yuv2p010lX_c(filter, filterSize, src, (uint16_t*)dest, dstW, 1);
}

#undef output_pixel


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#define accumulate_bit(acc, val) \
    acc <<= 1; \
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    acc |= (val) >= 234
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#define output_pixel(pos, acc) \
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    if (target == AV_PIX_FMT_MONOBLACK) { \
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        pos = acc; \
    } else { \
        pos = ~acc; \
    }

static av_always_inline void
yuv2mono_X_c_template(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,
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                      int y, enum AVPixelFormat target)
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{
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    const uint8_t * const d128 = ff_dither_8x8_220[y&7];
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    int i;
    unsigned acc = 0;
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    int err = 0;
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    for (i = 0; i < dstW; i += 2) {
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        int j;
        int Y1 = 1 << 18;
        int Y2 = 1 << 18;

        for (j = 0; j < lumFilterSize; j++) {
            Y1 += lumSrc[j][i]   * lumFilter[j];
            Y2 += lumSrc[j][i+1] * lumFilter[j];
        }
        Y1 >>= 19;
        Y2 >>= 19;
        if ((Y1 | Y2) & 0x100) {
            Y1 = av_clip_uint8(Y1);
            Y2 = av_clip_uint8(Y2);
        }
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        if (c->dither == SWS_DITHER_ED) {
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            Y1 += (7*err + 1*c->dither_error[0][i] + 5*c->dither_error[0][i+1] + 3*c->dither_error[0][i+2] + 8 - 256)>>4;
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            c->dither_error[0][i] = err;
            acc = 2*acc + (Y1 >= 128);
            Y1 -= 220*(acc&1);

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            err = Y2 + ((7*Y1 + 1*c->dither_error[0][i+1] + 5*c->dither_error[0][i+2] + 3*c->dither_error[0][i+3] + 8 - 256)>>4);
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            c->dither_error[0][i+1] = Y1;
            acc = 2*acc + (err >= 128);
            err -= 220*(acc&1);
        } else {
            accumulate_bit(acc, Y1 + d128[(i + 0) & 7]);
            accumulate_bit(acc, Y2 + d128[(i + 1) & 7]);
        }
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        if ((i & 7) == 6) {
            output_pixel(*dest++, acc);
        }
    }
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    c->dither_error[0][i] = err;
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    if (i & 6) {
        output_pixel(*dest, acc);
    }
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}

static av_always_inline void
yuv2mono_2_c_template(SwsContext *c, const int16_t *buf[2],
                      const int16_t *ubuf[2], const int16_t *vbuf[2],
                      const int16_t *abuf[2], uint8_t *dest, int dstW,
                      int yalpha, int uvalpha, int y,
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                      enum AVPixelFormat target)
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{
    const int16_t *buf0  = buf[0],  *buf1  = buf[1];
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    const uint8_t * const d128 = ff_dither_8x8_220[y & 7];
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    int  yalpha1 = 4096 - yalpha;
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    int i;
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    av_assert2(yalpha  <= 4096U);
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    if (c->dither == SWS_DITHER_ED) {
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        int err = 0;
        int acc = 0;
        for (i = 0; i < dstW; i +=2) {
            int Y;

            Y = (buf0[i + 0] * yalpha1 + buf1[i + 0] * yalpha) >> 19;
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            Y += (7*err + 1*c->dither_error[0][i] + 5*c->dither_error[0][i+1] + 3*c->dither_error[0][i+2] + 8 - 256)>>4;
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            c->dither_error[0][i] = err;
            acc = 2*acc + (Y >= 128);
            Y -= 220*(acc&1);

            err = (buf0[i + 1] * yalpha1 + buf1[i + 1] * yalpha) >> 19;
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            err += (7*Y + 1*c->dither_error[0][i+1] + 5*c->dither_error[0][i+2] + 3*c->dither_error[0][i+3] + 8 - 256)>>4;
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            c->dither_error[0][i+1] = Y;
            acc = 2*acc + (err >= 128);
            err -= 220*(acc&1);

            if ((i & 7) == 6)
                output_pixel(*dest++, acc);
        }
        c->dither_error[0][i] = err;
    } else {
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        for (i = 0; i < dstW; i += 8) {
            int Y, acc = 0;

            Y = (buf0[i + 0] * yalpha1 + buf1[i + 0] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[0]);
            Y = (buf0[i + 1] * yalpha1 + buf1[i + 1] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[1]);
            Y = (buf0[i + 2] * yalpha1 + buf1[i + 2] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[2]);
            Y = (buf0[i + 3] * yalpha1 + buf1[i + 3] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[3]);
            Y = (buf0[i + 4] * yalpha1 + buf1[i + 4] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[4]);
            Y = (buf0[i + 5] * yalpha1 + buf1[i + 5] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[5]);
            Y = (buf0[i + 6] * yalpha1 + buf1[i + 6] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[6]);
            Y = (buf0[i + 7] * yalpha1 + buf1[i + 7] * yalpha) >> 19;
            accumulate_bit(acc, Y + d128[7]);

            output_pixel(*dest++, acc);
        }
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    }
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}

static av_always_inline void
yuv2mono_1_c_template(SwsContext *c, const int16_t *buf0,
                      const int16_t *ubuf[2], const int16_t *vbuf[2],
                      const int16_t *abuf0, uint8_t *dest, int dstW,
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                      int uvalpha, int y, enum AVPixelFormat target)
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{
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    const uint8_t * const d128 = ff_dither_8x8_220[y & 7];
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    int i;

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    if (c->dither == SWS_DITHER_ED) {
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        int err = 0;
        int acc = 0;
        for (i = 0; i < dstW; i +=2) {
            int Y;

            Y = ((buf0[i + 0] + 64) >> 7);
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            Y += (7*err + 1*c->dither_error[0][i] + 5*c->dither_error[0][i+1] + 3*c->dither_error[0][i+2] + 8 - 256)>>4;
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            c->dither_error[0][i] = err;
            acc = 2*acc + (Y >= 128);
            Y -= 220*(acc&1);

            err = ((buf0[i + 1] + 64) >> 7);
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            err += (7*Y + 1*c->dither_error[0][i+1] + 5*c->dither_error[0][i+2] + 3*c->dither_error[0][i+3] + 8 - 256)>>4;
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            c->dither_error[0][i+1] = Y;
            acc = 2*acc + (err >= 128);
            err -= 220*(acc&1);

            if ((i & 7) == 6)
                output_pixel(*dest++, acc);
        }
        c->dither_error[0][i] = err;
    } else {
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        for (i = 0; i < dstW; i += 8) {
            int acc = 0;
            accumulate_bit(acc, ((buf0[i + 0] + 64) >> 7) + d128[0]);
            accumulate_bit(acc, ((buf0[i + 1] + 64) >> 7) + d128[1]);
            accumulate_bit(acc, ((buf0[i + 2] + 64) >> 7) + d128[2]);
            accumulate_bit(acc, ((buf0[i + 3] + 64) >> 7) + d128[3]);
            accumulate_bit(acc, ((buf0[i + 4] + 64) >> 7) + d128[4]);
            accumulate_bit(acc, ((buf0[i + 5] + 64) >> 7) + d128[5]);
            accumulate_bit(acc, ((buf0[i + 6] + 64) >> 7) + d128[6]);
            accumulate_bit(acc, ((buf0[i + 7] + 64) >> 7) + d128[7]);

            output_pixel(*dest++, acc);
        }
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    }
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}

#undef output_pixel
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#undef accumulate_bit
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#define YUV2PACKEDWRAPPER(name, base, ext, fmt) \
static void name ## ext ## _X_c(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) \
{ \
    name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \
                                  chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
                                  alpSrc, dest, dstW, y, fmt); \
} \
 \
static void name ## ext ## _2_c(SwsContext *c, const int16_t *buf[2], \
                                const int16_t *ubuf[2], const int16_t *vbuf[2], \
                                const int16_t *abuf[2], uint8_t *dest, int dstW, \
                                int yalpha, int uvalpha, int y) \
{ \
    name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \
                                  dest, dstW, yalpha, uvalpha, y, fmt); \
} \
 \
static void name ## ext ## _1_c(SwsContext *c, const int16_t *buf0, \
                                const int16_t *ubuf[2], const int16_t *vbuf[2], \
                                const int16_t *abuf0, uint8_t *dest, int dstW, \
                                int uvalpha, int y) \
{ \
    name ## base ## _1_c_template(c, buf0, ubuf, vbuf, \
                                  abuf0, dest, dstW, uvalpha, \
                                  y, fmt); \
}

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YUV2PACKEDWRAPPER(yuv2mono,, white, AV_PIX_FMT_MONOWHITE)
YUV2PACKEDWRAPPER(yuv2mono,, black, AV_PIX_FMT_MONOBLACK)
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#define output_pixels(pos, Y1, U, Y2, V) \
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    if (target == AV_PIX_FMT_YUYV422) { \
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        dest[pos + 0] = Y1; \
        dest[pos + 1] = U;  \
        dest[pos + 2] = Y2; \
        dest[pos + 3] = V;  \
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    } else if (target == AV_PIX_FMT_YVYU422) { \
        dest[pos + 0] = Y1; \
        dest[pos + 1] = V;  \
        dest[pos + 2] = Y2; \
        dest[pos + 3] = U;  \
    } else { /* AV_PIX_FMT_UYVY422 */ \
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        dest[pos + 0] = U;  \
        dest[pos + 1] = Y1; \
        dest[pos + 2] = V;  \
        dest[pos + 3] = Y2; \
    }

static av_always_inline void
yuv2422_X_c_template(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,
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                     int y, enum AVPixelFormat target)
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{
    int i;

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    for (i = 0; i < ((dstW + 1) >> 1); i++) {
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        int j;
        int Y1 = 1 << 18;
        int Y2 = 1 << 18;
        int U  = 1 << 18;
        int V  = 1 << 18;

        for (j = 0; j < lumFilterSize; j++) {
            Y1 += lumSrc[j][i * 2]     * lumFilter[j];
            Y2 += lumSrc[j][i * 2 + 1] * lumFilter[j];
        }
        for (j = 0; j < chrFilterSize; j++) {
            U += chrUSrc[j][i] * chrFilter[j];
            V += chrVSrc[j][i] * chrFilter[j];
        }
        Y1 >>= 19;
        Y2 >>= 19;
        U  >>= 19;
        V  >>= 19;
        if ((Y1 | Y2 | U | V) & 0x100) {
            Y1 = av_clip_uint8(Y1);
            Y2 = av_clip_uint8(Y2);
            U  = av_clip_uint8(U);
            V  = av_clip_uint8(V);
        }
        output_pixels(4*i, Y1, U, Y2, V);
    }
}

static av_always_inline void
yuv2422_2_c_template(SwsContext *c, const int16_t *buf[2],
                     const int16_t *ubuf[2], const int16_t *vbuf[2],
                     const int16_t *abuf[2], uint8_t *dest, int dstW,
                     int yalpha, int uvalpha, int y,
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                     enum AVPixelFormat target)
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{
    const int16_t *buf0  = buf[0],  *buf1  = buf[1],
                  *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
                  *vbuf0 = vbuf[0], *vbuf1 = vbuf[1];
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    int  yalpha1 = 4096 - yalpha;
    int uvalpha1 = 4096 - uvalpha;
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    int i;
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    av_assert2(yalpha  <= 4096U);
    av_assert2(uvalpha <= 4096U);
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    for (i = 0; i < ((dstW + 1) >> 1); i++) {
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        int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha)  >> 19;
        int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha)  >> 19;
        int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha) >> 19;
        int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha) >> 19;

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        if ((Y1 | Y2 | U | V) & 0x100) {
            Y1 = av_clip_uint8(Y1);
            Y2 = av_clip_uint8(Y2);
            U  = av_clip_uint8(U);
            V  = av_clip_uint8(V);
        }

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        output_pixels(i * 4, Y1, U, Y2, V);
    }
}

static av_always_inline void
yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,
                     const int16_t *ubuf[2], const int16_t *vbuf[2],
                     const int16_t *abuf0, uint8_t *dest, int dstW,
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                     int uvalpha, int y, enum AVPixelFormat target)
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{
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    const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
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    int i;

    if (uvalpha < 2048) {
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        for (i = 0; i < ((dstW + 1) >> 1); i++) {
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            int Y1 = (buf0[i * 2    ]+64) >> 7;
            int Y2 = (buf0[i * 2 + 1]+64) >> 7;
            int U  = (ubuf0[i]       +64) >> 7;
            int V  = (vbuf0[i]       +64) >> 7;
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            if ((Y1 | Y2 | U | V) & 0x100) {
                Y1 = av_clip_uint8(Y1);
                Y2 = av_clip_uint8(Y2);
                U  = av_clip_uint8(U);
                V  = av_clip_uint8(V);
            }

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            output_pixels(i * 4, Y1, U, Y2, V);
        }
    } else {
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        const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
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        for (i = 0; i < ((dstW + 1) >> 1); i++) {
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            int Y1 = (buf0[i * 2    ]    + 64) >> 7;
            int Y2 = (buf0[i * 2 + 1]    + 64) >> 7;
            int U  = (ubuf0[i] + ubuf1[i]+128) >> 8;
            int V  = (vbuf0[i] + vbuf1[i]+128) >> 8;
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            if ((Y1 | Y2 | U | V) & 0x100) {
                Y1 = av_clip_uint8(Y1);
                Y2 = av_clip_uint8(Y2);
                U  = av_clip_uint8(U);
                V  = av_clip_uint8(V);
            }

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            output_pixels(i * 4, Y1, U, Y2, V);
        }
    }
}

#undef output_pixels

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YUV2PACKEDWRAPPER(yuv2, 422, yuyv422, AV_PIX_FMT_YUYV422)
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YUV2PACKEDWRAPPER(yuv2, 422, yvyu422, AV_PIX_FMT_YVYU422)
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YUV2PACKEDWRAPPER(yuv2, 422, uyvy422, AV_PIX_FMT_UYVY422)
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#define R_B ((target == AV_PIX_FMT_RGB48LE || target == AV_PIX_FMT_RGB48BE || target == AV_PIX_FMT_RGBA64LE || target == AV_PIX_FMT_RGBA64BE) ? R : B)
#define B_R ((target == AV_PIX_FMT_RGB48LE || target == AV_PIX_FMT_RGB48BE || target == AV_PIX_FMT_RGBA64LE || target == AV_PIX_FMT_RGBA64BE) ? B : R)
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#define output_pixel(pos, val) \
    if (isBE(target)) { \
        AV_WB16(pos, val); \
    } else { \
        AV_WL16(pos, val); \
    }

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static av_always_inline void
yuv2ya16_X_c_template(SwsContext *c, const int16_t *lumFilter,
                        const int32_t **lumSrc, int lumFilterSize,
                        const int16_t *chrFilter, const int32_t **unused_chrUSrc,
                        const int32_t **unused_chrVSrc, int unused_chrFilterSize,
                        const int32_t **alpSrc, uint16_t *dest, int dstW,
                        int y, enum AVPixelFormat target, int unused_hasAlpha, int unused_eightbytes)
{
    int hasAlpha = !!alpSrc;
    int i;

    for (i = 0; i < dstW; i++) {
        int j;
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        int Y = -0x40000000;
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        int A = 0xffff;
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        for (j = 0; j < lumFilterSize; j++)
            Y += lumSrc[j][i] * lumFilter[j];

        Y >>= 15;
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        Y += (1<<3) + 0x8000;
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        Y = av_clip_uint16(Y);

        if (hasAlpha) {
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            A = -0x40000000 + (1<<14);
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            for (j = 0; j < lumFilterSize; j++)
                A += alpSrc[j][i] * lumFilter[j];

            A >>= 15;
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            A += 0x8000;
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            A = av_clip_uint16(A);
        }

        output_pixel(&dest[2 * i    ], Y);
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        output_pixel(&dest[2 * i + 1], A);
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    }
}

static av_always_inline void
yuv2ya16_2_c_template(SwsContext *c, const int32_t *buf[2],
                        const int32_t *unused_ubuf[2], const int32_t *unused_vbuf[2],
                        const int32_t *abuf[2], uint16_t *dest, int dstW,
                        int yalpha, int unused_uvalpha, int y,
                        enum AVPixelFormat target, int unused_hasAlpha, int unused_eightbytes)
{
    int hasAlpha = abuf && abuf[0] && abuf[1];
    const int32_t *buf0  = buf[0],  *buf1  = buf[1],
    *abuf0 = hasAlpha ? abuf[0] : NULL,
    *abuf1 = hasAlpha ? abuf[1] : NULL;
    int  yalpha1 = 4096 - yalpha;
    int i;

    av_assert2(yalpha  <= 4096U);

    for (i = 0; i < dstW; i++) {
        int Y = (buf0[i] * yalpha1 + buf1[i] * yalpha) >> 15;
        int A;

        Y = av_clip_uint16(Y);

        if (hasAlpha) {
            A = (abuf0[i] * yalpha1 + abuf1[i] * yalpha) >> 15;
            A = av_clip_uint16(A);
        }

        output_pixel(&dest[2 * i    ], Y);
        output_pixel(&dest[2 * i + 1], hasAlpha ? A : 65535);
    }
}

static av_always_inline void
yuv2ya16_1_c_template(SwsContext *c, const int32_t *buf0,
                        const int32_t *unused_ubuf[2], const int32_t *unused_vbuf[2],
                        const int32_t *abuf0, uint16_t *dest, int dstW,
                        int unused_uvalpha, int y, enum AVPixelFormat target, int unused_hasAlpha, int unused_eightbytes)
{
    int hasAlpha = !!abuf0;
    int i;

    for (i = 0; i < dstW; i++) {
        int Y = buf0[i] >> 3;/* 19 - 16 */
        int A;

        Y = av_clip_uint16(Y);

        if (hasAlpha) {
            A = abuf0[i] >> 3;
            if (A & 0x100)
                A = av_clip_uint16(A);
        }

        output_pixel(&dest[2 * i    ], Y);
        output_pixel(&dest[2 * i + 1], hasAlpha ? A : 65535);
    }
}

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static av_always_inline void
yuv2rgba64_X_c_template(SwsContext *c, const int16_t *lumFilter,
                       const int32_t **lumSrc, int lumFilterSize,
                       const int16_t *chrFilter, const int32_t **chrUSrc,
                       const int32_t **chrVSrc, int chrFilterSize,
                       const int32_t **alpSrc, uint16_t *dest, int dstW,
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                       int y, enum AVPixelFormat target, int hasAlpha, int eightbytes)
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{
    int i;
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    int A1 = 0xffff<<14, A2 = 0xffff<<14;
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    for (i = 0; i < ((dstW + 1) >> 1); i++) {
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        int j;
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        int Y1 = -0x40000000;
        int Y2 = -0x40000000;
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        int U  = -(128 << 23); // 19
        int V  = -(128 << 23);
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        int R, G, B;

        for (j = 0; j < lumFilterSize; j++) {
            Y1 += lumSrc[j][i * 2]     * (unsigned)lumFilter[j];
            Y2 += lumSrc[j][i * 2 + 1] * (unsigned)lumFilter[j];
        }
        for (j = 0; j < chrFilterSize; j++) {;
            U += chrUSrc[j][i] * (unsigned)chrFilter[j];
            V += chrVSrc[j][i] * (unsigned)chrFilter[j];
        }

        if (hasAlpha) {
            A1 = -0x40000000;
            A2 = -0x40000000;
            for (j = 0; j < lumFilterSize; j++) {
                A1 += alpSrc[j][i * 2]     * (unsigned)lumFilter[j];
                A2 += alpSrc[j][i * 2 + 1] * (unsigned)lumFilter[j];
            }
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            A1 >>= 1;
            A1 += 0x20002000;
            A2 >>= 1;
            A2 += 0x20002000;
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        }

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        // 8 bits: 12+15=27; 16 bits: 12+19=31
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        Y1 >>= 14; // 10
        Y1 += 0x10000;
        Y2 >>= 14;
        Y2 += 0x10000;
        U  >>= 14;
        V  >>= 14;

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        // 8 bits: 27 -> 17 bits, 16 bits: 31 - 14 = 17 bits
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        Y1 -= c->yuv2rgb_y_offset;
        Y2 -= c->yuv2rgb_y_offset;
        Y1 *= c->yuv2rgb_y_coeff;
        Y2 *= c->yuv2rgb_y_coeff;
        Y1 += 1 << 13; // 21
        Y2 += 1 << 13;
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        // 8 bits: 17 + 13 bits = 30 bits, 16 bits: 17 + 13 bits = 30 bits
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        R = V * c->yuv2rgb_v2r_coeff;
        G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
        B =                            U * c->yuv2rgb_u2b_coeff;

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        // 8 bits: 30 - 22 = 8 bits, 16 bits: 30 bits - 14 = 16 bits
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        output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);
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        output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);
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        output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);
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        if (eightbytes) {
            output_pixel(&dest[3], av_clip_uintp2(A1      , 30) >> 14);
            output_pixel(&dest[4], av_clip_uintp2(R_B + Y2, 30) >> 14);
            output_pixel(&dest[5], av_clip_uintp2(  G + Y2, 30) >> 14);
            output_pixel(&dest[6], av_clip_uintp2(B_R + Y2, 30) >> 14);
            output_pixel(&dest[7], av_clip_uintp2(A2      , 30) >> 14);
            dest += 8;
        } else {
            output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);
            output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);
            output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);
            dest += 6;
        }
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    }
}

static av_always_inline void
yuv2rgba64_2_c_template(SwsContext *c, const int32_t *buf[2],
                       const int32_t *ubuf[2], const int32_t *vbuf[2],
                       const int32_t *abuf[2], uint16_t *dest, int dstW,
                       int yalpha, int uvalpha, int y,
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                       enum AVPixelFormat target, int hasAlpha, int eightbytes)
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{
    const int32_t *buf0  = buf[0],  *buf1  = buf[1],
                  *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
                  *vbuf0 = vbuf[0], *vbuf1 = vbuf[1],
                  *abuf0 = hasAlpha ? abuf[0] : NULL,
                  *abuf1 = hasAlpha ? abuf[1] : NULL;
    int  yalpha1 = 4096 - yalpha;
    int uvalpha1 = 4096 - uvalpha;
    int i;
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    int A1 = 0xffff<<14, A2 = 0xffff<<14;
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    av_assert2(yalpha  <= 4096U);
    av_assert2(uvalpha <= 4096U);

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    for (i = 0; i < ((dstW + 1) >> 1); i++) {
        int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha) >> 14;
        int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha) >> 14;
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        int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha - (128 << 23)) >> 14;
        int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha - (128 << 23)) >> 14;
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        int R, G, B;

        Y1 -= c->yuv2rgb_y_offset;
        Y2 -= c->yuv2rgb_y_offset;
        Y1 *= c->yuv2rgb_y_coeff;
        Y2 *= c->yuv2rgb_y_coeff;
        Y1 += 1 << 13;
        Y2 += 1 << 13;

        R = V * c->yuv2rgb_v2r_coeff;
        G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
        B =                            U * c->yuv2rgb_u2b_coeff;

        if (hasAlpha) {
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            A1 = (abuf0[i * 2    ] * yalpha1 + abuf1[i * 2    ] * yalpha) >> 1;
            A2 = (abuf0[i * 2 + 1] * yalpha1 + abuf1[i * 2 + 1] * yalpha) >> 1;
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            A1 += 1 << 13;
            A2 += 1 << 13;
        }

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        output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);
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        output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);
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        output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);
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        if (eightbytes) {
            output_pixel(&dest[3], av_clip_uintp2(A1      , 30) >> 14);
            output_pixel(&dest[4], av_clip_uintp2(R_B + Y2, 30) >> 14);
            output_pixel(&dest[5], av_clip_uintp2(  G + Y2, 30) >> 14);
            output_pixel(&dest[6], av_clip_uintp2(B_R + Y2, 30) >> 14);
            output_pixel(&dest[7], av_clip_uintp2(A2      , 30) >> 14);
            dest += 8;
        } else {
            output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);
            output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);
            output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);
            dest += 6;
        }
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    }
}

static av_always_inline void
yuv2rgba64_1_c_template(SwsContext *c, const int32_t *buf0,
                       const int32_t *ubuf[2], const int32_t *vbuf[2],
                       const int32_t *abuf0, uint16_t *dest, int dstW,
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                       int uvalpha, int y, enum AVPixelFormat target, int hasAlpha, int eightbytes)
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{
    const int32_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
    int i;
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    int A1 = 0xffff<<14, A2= 0xffff<<14;
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    if (uvalpha < 2048) {
        for (i = 0; i < ((dstW + 1) >> 1); i++) {
            int Y1 = (buf0[i * 2]    ) >> 2;
            int Y2 = (buf0[i * 2 + 1]) >> 2;
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            int U  = (ubuf0[i] - (128 << 11)) >> 2;
            int V  = (vbuf0[i] - (128 << 11)) >> 2;
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            int R, G, B;

            Y1 -= c->yuv2rgb_y_offset;
            Y2 -= c->yuv2rgb_y_offset;
            Y1 *= c->yuv2rgb_y_coeff;
            Y2 *= c->yuv2rgb_y_coeff;
            Y1 += 1 << 13;
            Y2 += 1 << 13;

            if (hasAlpha) {
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                A1 = abuf0[i * 2    ] << 11;
                A2 = abuf0[i * 2 + 1] << 11;
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                A1 += 1 << 13;
                A2 += 1 << 13;
            }

            R = V * c->yuv2rgb_v2r_coeff;
            G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
            B =                            U * c->yuv2rgb_u2b_coeff;

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            output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);
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            output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);
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            output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);
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            if (eightbytes) {
                output_pixel(&dest[3], av_clip_uintp2(A1      , 30) >> 14);
                output_pixel(&dest[4], av_clip_uintp2(R_B + Y2, 30) >> 14);
                output_pixel(&dest[5], av_clip_uintp2(  G + Y2, 30) >> 14);
                output_pixel(&dest[6], av_clip_uintp2(B_R + Y2, 30) >> 14);
                output_pixel(&dest[7], av_clip_uintp2(A2      , 30) >> 14);
                dest += 8;
            } else {
                output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);
                output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);
                output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);
                dest += 6;
            }
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        }
    } else {
        const int32_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
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        int A1 = 0xffff<<14, A2 = 0xffff<<14;
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        for (i = 0; i < ((dstW + 1) >> 1); i++) {
            int Y1 = (buf0[i * 2]    ) >> 2;
            int Y2 = (buf0[i * 2 + 1]) >> 2;
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            int U  = (ubuf0[i] + ubuf1[i] - (128 << 12)) >> 3;
            int V  = (vbuf0[i] + vbuf1[i] - (128 << 12)) >> 3;
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            int R, G, B;

            Y1 -= c->yuv2rgb_y_offset;
            Y2 -= c->yuv2rgb_y_offset;
            Y1 *= c->yuv2rgb_y_coeff;
            Y2 *= c->yuv2rgb_y_coeff;
            Y1 += 1 << 13;
            Y2 += 1 << 13;

            if (hasAlpha) {
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                A1 = abuf0[i * 2    ] << 11;
                A2 = abuf0[i * 2 + 1] << 11;
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                A1 += 1 << 13;
                A2 += 1 << 13;
            }

            R = V * c->yuv2rgb_v2r_coeff;
            G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
            B =                            U * c->yuv2rgb_u2b_coeff;

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            output_pixel(&dest[0], av_clip_uintp2(R_B + Y1, 30) >> 14);
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            output_pixel(&dest[1], av_clip_uintp2(  G + Y1, 30) >> 14);
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            output_pixel(&dest[2], av_clip_uintp2(B_R + Y1, 30) >> 14);
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            if (eightbytes) {
                output_pixel(&dest[3], av_clip_uintp2(A1      , 30) >> 14);
                output_pixel(&dest[4], av_clip_uintp2(R_B + Y2, 30) >> 14);
                output_pixel(&dest[5], av_clip_uintp2(  G + Y2, 30) >> 14);
                output_pixel(&dest[6], av_clip_uintp2(B_R + Y2, 30) >> 14);
                output_pixel(&dest[7], av_clip_uintp2(A2      , 30) >> 14);
                dest += 8;
            } else {
                output_pixel(&dest[3], av_clip_uintp2(R_B + Y2, 30) >> 14);
                output_pixel(&dest[4], av_clip_uintp2(  G + Y2, 30) >> 14);
                output_pixel(&dest[5], av_clip_uintp2(B_R + Y2, 30) >> 14);
                dest += 6;
            }
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        }
    }
}

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static av_always_inline void
yuv2rgba64_full_X_c_template(SwsContext *c, const int16_t *lumFilter,
                       const int32_t **lumSrc, int lumFilterSize,
                       const int16_t *chrFilter, const int32_t **chrUSrc,
                       const int32_t **chrVSrc, int chrFilterSize,
                       const int32_t **alpSrc, uint16_t *dest, int dstW,
                       int y, enum AVPixelFormat target, int hasAlpha, int eightbytes)
{
    int i;
    int A = 0xffff<<14;

    for (i = 0; i < dstW; i++) {
        int j;
        int Y  = -0x40000000;
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        int U  = -(128 << 23); // 19
        int V  = -(128 << 23);
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        int R, G, B;

        for (j = 0; j < lumFilterSize; j++) {
            Y += lumSrc[j][i]  * (unsigned)lumFilter[j];
        }
        for (j = 0; j < chrFilterSize; j++) {;
            U += chrUSrc[j][i] * (unsigned)chrFilter[j];
            V += chrVSrc[j][i] * (unsigned)chrFilter[j];
        }

        if (hasAlpha) {
            A = -0x40000000;
            for (j = 0; j < lumFilterSize; j++) {
                A += alpSrc[j][i] * (unsigned)lumFilter[j];
            }
            A >>= 1;
            A += 0x20002000;
        }

        // 8bit: 12+15=27; 16-bit: 12+19=31
        Y  >>= 14; // 10
        Y += 0x10000;
        U  >>= 14;
        V  >>= 14;

        // 8bit: 27 -> 17bit, 16bit: 31 - 14 = 17bit
        Y -= c->yuv2rgb_y_offset;
        Y *= c->yuv2rgb_y_coeff;
        Y += 1 << 13; // 21
        // 8bit: 17 + 13bit = 30bit, 16bit: 17 + 13bit = 30bit

        R = V * c->yuv2rgb_v2r_coeff;
        G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
        B =                            U * c->yuv2rgb_u2b_coeff;

        // 8bit: 30 - 22 = 8bit, 16bit: 30bit - 14 = 16bit
        output_pixel(&dest[0], av_clip_uintp2(R_B + Y, 30) >> 14);
        output_pixel(&dest[1], av_clip_uintp2(  G + Y, 30) >> 14);
        output_pixel(&dest[2], av_clip_uintp2(B_R + Y, 30) >> 14);
        if (eightbytes) {
            output_pixel(&dest[3], av_clip_uintp2(A, 30) >> 14);
            dest += 4;
        } else {
            dest += 3;
        }
    }
}

static av_always_inline void
yuv2rgba64_full_2_c_template(SwsContext *c, const int32_t *buf[2],
                       const int32_t *ubuf[2], const int32_t *vbuf[2],
                       const int32_t *abuf[2], uint16_t *dest, int dstW,
                       int yalpha, int uvalpha, int y,
                       enum AVPixelFormat target, int hasAlpha, int eightbytes)
{
    const int32_t *buf0  = buf[0],  *buf1  = buf[1],
                  *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
                  *vbuf0 = vbuf[0], *vbuf1 = vbuf[1],
                  *abuf0 = hasAlpha ? abuf[0] : NULL,
                  *abuf1 = hasAlpha ? abuf[1] : NULL;
    int  yalpha1 = 4096 - yalpha;
    int uvalpha1 = 4096 - uvalpha;
    int i;
    int A = 0xffff<<14;

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    av_assert2(yalpha  <= 4096U);
    av_assert2(uvalpha <= 4096U);

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    for (i = 0; i < dstW; i++) {
        int Y  = (buf0[i]     * yalpha1  + buf1[i]     * yalpha) >> 14;
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        int U  = (ubuf0[i]   * uvalpha1 + ubuf1[i]     * uvalpha - (128 << 23)) >> 14;
        int V  = (vbuf0[i]   * uvalpha1 + vbuf1[i]     * uvalpha - (128 << 23)) >> 14;
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        int R, G, B;

        Y -= c->yuv2rgb_y_offset;
        Y *= c->yuv2rgb_y_coeff;
        Y += 1 << 13;

        R = V * c->yuv2rgb_v2r_coeff;
        G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
        B =                            U * c->yuv2rgb_u2b_coeff;

        if (hasAlpha) {
            A = (abuf0[i] * yalpha1 + abuf1[i] * yalpha) >> 1;

            A += 1 << 13;
        }

        output_pixel(&dest[0], av_clip_uintp2(R_B + Y, 30) >> 14);
        output_pixel(&dest[1], av_clip_uintp2(  G + Y, 30) >> 14);
        output_pixel(&dest[2], av_clip_uintp2(B_R + Y, 30) >> 14);
        if (eightbytes) {
            output_pixel(&dest[3], av_clip_uintp2(A, 30) >> 14);
            dest += 4;
        } else {
            dest += 3;
        }
    }
}

static av_always_inline void
yuv2rgba64_full_1_c_template(SwsContext *c, const int32_t *buf0,
                       const int32_t *ubuf[2], const int32_t *vbuf[2],
                       const int32_t *abuf0, uint16_t *dest, int dstW,
                       int uvalpha, int y, enum AVPixelFormat target, int hasAlpha, int eightbytes)
{
    const int32_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
    int i;
    int A = 0xffff<<14;

    if (uvalpha < 2048) {
        for (i = 0; i < dstW; i++) {
            int Y  = (buf0[i]) >> 2;
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            int U  = (ubuf0[i] - (128 << 11)) >> 2;
            int V  = (vbuf0[i] - (128 << 11)) >> 2;
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            int R, G, B;

            Y -= c->yuv2rgb_y_offset;
            Y *= c->yuv2rgb_y_coeff;
            Y += 1 << 13;

            if (hasAlpha) {
                A = abuf0[i] << 11;

                A += 1 << 13;
            }

            R = V * c->yuv2rgb_v2r_coeff;
            G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
            B =                            U * c->yuv2rgb_u2b_coeff;

            output_pixel(&dest[0], av_clip_uintp2(R_B + Y, 30) >> 14);
            output_pixel(&dest[1], av_clip_uintp2(  G + Y, 30) >> 14);
            output_pixel(&dest[2], av_clip_uintp2(B_R + Y, 30) >> 14);
            if (eightbytes) {
                output_pixel(&dest[3], av_clip_uintp2(A, 30) >> 14);
                dest += 4;
            } else {
                dest += 3;
            }
        }
    } else {
        const int32_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
        int A = 0xffff<<14;
        for (i = 0; i < dstW; i++) {
            int Y  = (buf0[i]    ) >> 2;
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            int U  = (ubuf0[i] + ubuf1[i] - (128 << 12)) >> 3;
            int V  = (vbuf0[i] + vbuf1[i] - (128 << 12)) >> 3;
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            int R, G, B;

            Y -= c->yuv2rgb_y_offset;
            Y *= c->yuv2rgb_y_coeff;
            Y += 1 << 13;

            if (hasAlpha) {
                A = abuf0[i] << 11;

                A += 1 << 13;
            }

            R = V * c->yuv2rgb_v2r_coeff;
            G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
            B =                            U * c->yuv2rgb_u2b_coeff;

            output_pixel(&dest[0], av_clip_uintp2(R_B + Y, 30) >> 14);
            output_pixel(&dest[1], av_clip_uintp2(  G + Y, 30) >> 14);
            output_pixel(&dest[2], av_clip_uintp2(B_R + Y, 30) >> 14);
            if (eightbytes) {
                output_pixel(&dest[3], av_clip_uintp2(A, 30) >> 14);
                dest += 4;
            } else {
                dest += 3;
            }
        }
    }
}

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#undef output_pixel
#undef r_b
#undef b_r

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#define YUV2PACKED16WRAPPER(name, base, ext, fmt, hasAlpha, eightbytes) \
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static void name ## ext ## _X_c(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) \
{ \
    const int32_t **lumSrc  = (const int32_t **) _lumSrc, \
                  **chrUSrc = (const int32_t **) _chrUSrc, \
                  **chrVSrc = (const int32_t **) _chrVSrc, \
                  **alpSrc  = (const int32_t **) _alpSrc; \
    uint16_t *dest = (uint16_t *) _dest; \
    name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \
                          chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
1452
                          alpSrc, dest, dstW, y, fmt, hasAlpha, eightbytes); \
1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465
} \
 \
static void name ## ext ## _2_c(SwsContext *c, const int16_t *_buf[2], \
                        const int16_t *_ubuf[2], const int16_t *_vbuf[2], \
                        const int16_t *_abuf[2], uint8_t *_dest, int dstW, \
                        int yalpha, int uvalpha, int y) \
{ \
    const int32_t **buf  = (const int32_t **) _buf, \
                  **ubuf = (const int32_t **) _ubuf, \
                  **vbuf = (const int32_t **) _vbuf, \
                  **abuf = (const int32_t **) _abuf; \
    uint16_t *dest = (uint16_t *) _dest; \
    name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \
1466
                          dest, dstW, yalpha, uvalpha, y, fmt, hasAlpha, eightbytes); \
1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479
} \
 \
static void name ## ext ## _1_c(SwsContext *c, const int16_t *_buf0, \
                        const int16_t *_ubuf[2], const int16_t *_vbuf[2], \
                        const int16_t *_abuf0, uint8_t *_dest, int dstW, \
                        int uvalpha, int y) \
{ \
    const int32_t *buf0  = (const int32_t *)  _buf0, \
                 **ubuf  = (const int32_t **) _ubuf, \
                 **vbuf  = (const int32_t **) _vbuf, \
                  *abuf0 = (const int32_t *)  _abuf0; \
    uint16_t *dest = (uint16_t *) _dest; \
    name ## base ## _1_c_template(c, buf0, ubuf, vbuf, abuf0, dest, \
1480
                                  dstW, uvalpha, y, fmt, hasAlpha, eightbytes); \
1481 1482
}

1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494
YUV2PACKED16WRAPPER(yuv2, rgba64, rgb48be, AV_PIX_FMT_RGB48BE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64, rgb48le, AV_PIX_FMT_RGB48LE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64, bgr48be, AV_PIX_FMT_BGR48BE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64, bgr48le, AV_PIX_FMT_BGR48LE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64, rgba64be, AV_PIX_FMT_RGBA64BE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, rgba64le, AV_PIX_FMT_RGBA64LE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, rgbx64be, AV_PIX_FMT_RGBA64BE, 0, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, rgbx64le, AV_PIX_FMT_RGBA64LE, 0, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, bgra64be, AV_PIX_FMT_BGRA64BE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, bgra64le, AV_PIX_FMT_BGRA64LE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, bgrx64be, AV_PIX_FMT_BGRA64BE, 0, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64, bgrx64le, AV_PIX_FMT_BGRA64LE, 0, 1)
1495 1496
YUV2PACKED16WRAPPER(yuv2, ya16, ya16be, AV_PIX_FMT_YA16BE, 1, 0)
YUV2PACKED16WRAPPER(yuv2, ya16, ya16le, AV_PIX_FMT_YA16LE, 1, 0)
1497

1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510
YUV2PACKED16WRAPPER(yuv2, rgba64_full, rgb48be_full, AV_PIX_FMT_RGB48BE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, rgb48le_full, AV_PIX_FMT_RGB48LE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, bgr48be_full, AV_PIX_FMT_BGR48BE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, bgr48le_full, AV_PIX_FMT_BGR48LE, 0, 0)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, rgba64be_full, AV_PIX_FMT_RGBA64BE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, rgba64le_full, AV_PIX_FMT_RGBA64LE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, rgbx64be_full, AV_PIX_FMT_RGBA64BE, 0, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, rgbx64le_full, AV_PIX_FMT_RGBA64LE, 0, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, bgra64be_full, AV_PIX_FMT_BGRA64BE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, bgra64le_full, AV_PIX_FMT_BGRA64LE, 1, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, bgrx64be_full, AV_PIX_FMT_BGRA64BE, 0, 1)
YUV2PACKED16WRAPPER(yuv2, rgba64_full, bgrx64le_full, AV_PIX_FMT_BGRA64LE, 0, 1)

1511 1512 1513 1514 1515 1516 1517 1518 1519
/*
 * Write out 2 RGB pixels in the target pixel format. This function takes a
 * R/G/B LUT as generated by ff_yuv2rgb_c_init_tables(), which takes care of
 * things like endianness conversion and shifting. The caller takes care of
 * setting the correct offset in these tables from the chroma (U/V) values.
 * This function then uses the luminance (Y1/Y2) values to write out the
 * correct RGB values into the destination buffer.
 */
static av_always_inline void
1520
yuv2rgb_write(uint8_t *_dest, int i, int Y1, int Y2,
1521 1522
              unsigned A1, unsigned A2,
              const void *_r, const void *_g, const void *_b, int y,
1523
              enum AVPixelFormat target, int hasAlpha)
1524
{
1525 1526
    if (target == AV_PIX_FMT_ARGB || target == AV_PIX_FMT_RGBA ||
        target == AV_PIX_FMT_ABGR || target == AV_PIX_FMT_BGRA) {
1527 1528 1529 1530 1531 1532
        uint32_t *dest = (uint32_t *) _dest;
        const uint32_t *r = (const uint32_t *) _r;
        const uint32_t *g = (const uint32_t *) _g;
        const uint32_t *b = (const uint32_t *) _b;

#if CONFIG_SMALL
1533
        int sh = hasAlpha ? ((target == AV_PIX_FMT_RGB32_1 || target == AV_PIX_FMT_BGR32_1) ? 0 : 24) : 0;
1534 1535 1536 1537 1538

        dest[i * 2 + 0] = r[Y1] + g[Y1] + b[Y1] + (hasAlpha ? A1 << sh : 0);
        dest[i * 2 + 1] = r[Y2] + g[Y2] + b[Y2] + (hasAlpha ? A2 << sh : 0);
#else
        if (hasAlpha) {
1539
            int sh = (target == AV_PIX_FMT_RGB32_1 || target == AV_PIX_FMT_BGR32_1) ? 0 : 24;
1540

1541
            av_assert2((((r[Y1] + g[Y1] + b[Y1]) >> sh) & 0xFF) == 0);
1542 1543 1544
            dest[i * 2 + 0] = r[Y1] + g[Y1] + b[Y1] + (A1 << sh);
            dest[i * 2 + 1] = r[Y2] + g[Y2] + b[Y2] + (A2 << sh);
        } else {
1545
#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
1546 1547 1548 1549
            int sh = (target == AV_PIX_FMT_RGB32_1 || target == AV_PIX_FMT_BGR32_1) ? 0 : 24;

            av_assert2((((r[Y1] + g[Y1] + b[Y1]) >> sh) & 0xFF) == 0xFF);
#endif
1550 1551 1552 1553
            dest[i * 2 + 0] = r[Y1] + g[Y1] + b[Y1];
            dest[i * 2 + 1] = r[Y2] + g[Y2] + b[Y2];
        }
#endif
1554
    } else if (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) {
1555 1556 1557 1558 1559
        uint8_t *dest = (uint8_t *) _dest;
        const uint8_t *r = (const uint8_t *) _r;
        const uint8_t *g = (const uint8_t *) _g;
        const uint8_t *b = (const uint8_t *) _b;

1560 1561
#define r_b ((target == AV_PIX_FMT_RGB24) ? r : b)
#define b_r ((target == AV_PIX_FMT_RGB24) ? b : r)
1562

1563 1564 1565 1566 1567 1568 1569 1570
        dest[i * 6 + 0] = r_b[Y1];
        dest[i * 6 + 1] =   g[Y1];
        dest[i * 6 + 2] = b_r[Y1];
        dest[i * 6 + 3] = r_b[Y2];
        dest[i * 6 + 4] =   g[Y2];
        dest[i * 6 + 5] = b_r[Y2];
#undef r_b
#undef b_r
1571 1572 1573
    } else if (target == AV_PIX_FMT_RGB565 || target == AV_PIX_FMT_BGR565 ||
               target == AV_PIX_FMT_RGB555 || target == AV_PIX_FMT_BGR555 ||
               target == AV_PIX_FMT_RGB444 || target == AV_PIX_FMT_BGR444) {
1574 1575 1576 1577 1578 1579
        uint16_t *dest = (uint16_t *) _dest;
        const uint16_t *r = (const uint16_t *) _r;
        const uint16_t *g = (const uint16_t *) _g;
        const uint16_t *b = (const uint16_t *) _b;
        int dr1, dg1, db1, dr2, dg2, db2;

1580
        if (target == AV_PIX_FMT_RGB565 || target == AV_PIX_FMT_BGR565) {
1581 1582 1583 1584 1585 1586
            dr1 = ff_dither_2x2_8[ y & 1     ][0];
            dg1 = ff_dither_2x2_4[ y & 1     ][0];
            db1 = ff_dither_2x2_8[(y & 1) ^ 1][0];
            dr2 = ff_dither_2x2_8[ y & 1     ][1];
            dg2 = ff_dither_2x2_4[ y & 1     ][1];
            db2 = ff_dither_2x2_8[(y & 1) ^ 1][1];
1587
        } else if (target == AV_PIX_FMT_RGB555 || target == AV_PIX_FMT_BGR555) {
1588 1589 1590 1591 1592 1593
            dr1 = ff_dither_2x2_8[ y & 1     ][0];
            dg1 = ff_dither_2x2_8[ y & 1     ][1];
            db1 = ff_dither_2x2_8[(y & 1) ^ 1][0];
            dr2 = ff_dither_2x2_8[ y & 1     ][1];
            dg2 = ff_dither_2x2_8[ y & 1     ][0];
            db2 = ff_dither_2x2_8[(y & 1) ^ 1][1];
1594
        } else {
1595 1596 1597 1598 1599 1600
            dr1 = ff_dither_4x4_16[ y & 3     ][0];
            dg1 = ff_dither_4x4_16[ y & 3     ][1];
            db1 = ff_dither_4x4_16[(y & 3) ^ 3][0];
            dr2 = ff_dither_4x4_16[ y & 3     ][1];
            dg2 = ff_dither_4x4_16[ y & 3     ][0];
            db2 = ff_dither_4x4_16[(y & 3) ^ 3][1];
1601 1602 1603 1604
        }

        dest[i * 2 + 0] = r[Y1 + dr1] + g[Y1 + dg1] + b[Y1 + db1];
        dest[i * 2 + 1] = r[Y2 + dr2] + g[Y2 + dg2] + b[Y2 + db2];
1605
    } else /* 8/4 bits */ {
1606 1607 1608 1609 1610 1611
        uint8_t *dest = (uint8_t *) _dest;
        const uint8_t *r = (const uint8_t *) _r;
        const uint8_t *g = (const uint8_t *) _g;
        const uint8_t *b = (const uint8_t *) _b;
        int dr1, dg1, db1, dr2, dg2, db2;

1612
        if (target == AV_PIX_FMT_RGB8 || target == AV_PIX_FMT_BGR8) {
1613 1614
            const uint8_t * const d64 = ff_dither_8x8_73[y & 7];
            const uint8_t * const d32 = ff_dither_8x8_32[y & 7];
1615 1616 1617 1618 1619
            dr1 = dg1 = d32[(i * 2 + 0) & 7];
            db1 =       d64[(i * 2 + 0) & 7];
            dr2 = dg2 = d32[(i * 2 + 1) & 7];
            db2 =       d64[(i * 2 + 1) & 7];
        } else {
1620 1621
            const uint8_t * const d64  = ff_dither_8x8_73 [y & 7];
            const uint8_t * const d128 = ff_dither_8x8_220[y & 7];
1622 1623 1624 1625 1626 1627
            dr1 = db1 = d128[(i * 2 + 0) & 7];
            dg1 =        d64[(i * 2 + 0) & 7];
            dr2 = db2 = d128[(i * 2 + 1) & 7];
            dg2 =        d64[(i * 2 + 1) & 7];
        }

1628
        if (target == AV_PIX_FMT_RGB4 || target == AV_PIX_FMT_BGR4) {
1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643
            dest[i] = r[Y1 + dr1] + g[Y1 + dg1] + b[Y1 + db1] +
                    ((r[Y2 + dr2] + g[Y2 + dg2] + b[Y2 + db2]) << 4);
        } else {
            dest[i * 2 + 0] = r[Y1 + dr1] + g[Y1 + dg1] + b[Y1 + db1];
            dest[i * 2 + 1] = r[Y2 + dr2] + g[Y2 + dg2] + b[Y2 + db2];
        }
    }
}

static av_always_inline void
yuv2rgb_X_c_template(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,
1644
                     int y, enum AVPixelFormat target, int hasAlpha)
1645 1646 1647
{
    int i;

1648
    for (i = 0; i < ((dstW + 1) >> 1); i++) {
1649
        int j, A1, A2;
1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682
        int Y1 = 1 << 18;
        int Y2 = 1 << 18;
        int U  = 1 << 18;
        int V  = 1 << 18;
        const void *r, *g, *b;

        for (j = 0; j < lumFilterSize; j++) {
            Y1 += lumSrc[j][i * 2]     * lumFilter[j];
            Y2 += lumSrc[j][i * 2 + 1] * lumFilter[j];
        }
        for (j = 0; j < chrFilterSize; j++) {
            U += chrUSrc[j][i] * chrFilter[j];
            V += chrVSrc[j][i] * chrFilter[j];
        }
        Y1 >>= 19;
        Y2 >>= 19;
        U  >>= 19;
        V  >>= 19;
        if (hasAlpha) {
            A1 = 1 << 18;
            A2 = 1 << 18;
            for (j = 0; j < lumFilterSize; j++) {
                A1 += alpSrc[j][i * 2    ] * lumFilter[j];
                A2 += alpSrc[j][i * 2 + 1] * lumFilter[j];
            }
            A1 >>= 19;
            A2 >>= 19;
            if ((A1 | A2) & 0x100) {
                A1 = av_clip_uint8(A1);
                A2 = av_clip_uint8(A2);
            }
        }

1683 1684 1685
        r =  c->table_rV[V + YUVRGB_TABLE_HEADROOM];
        g = (c->table_gU[U + YUVRGB_TABLE_HEADROOM] + c->table_gV[V + YUVRGB_TABLE_HEADROOM]);
        b =  c->table_bU[U + YUVRGB_TABLE_HEADROOM];
1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696

        yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,
                      r, g, b, y, target, hasAlpha);
    }
}

static av_always_inline void
yuv2rgb_2_c_template(SwsContext *c, const int16_t *buf[2],
                     const int16_t *ubuf[2], const int16_t *vbuf[2],
                     const int16_t *abuf[2], uint8_t *dest, int dstW,
                     int yalpha, int uvalpha, int y,
1697
                     enum AVPixelFormat target, int hasAlpha)
1698 1699 1700 1701 1702 1703
{
    const int16_t *buf0  = buf[0],  *buf1  = buf[1],
                  *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
                  *vbuf0 = vbuf[0], *vbuf1 = vbuf[1],
                  *abuf0 = hasAlpha ? abuf[0] : NULL,
                  *abuf1 = hasAlpha ? abuf[1] : NULL;
1704 1705
    int  yalpha1 = 4096 - yalpha;
    int uvalpha1 = 4096 - uvalpha;
1706
    int i;
1707 1708
    av_assert2(yalpha  <= 4096U);
    av_assert2(uvalpha <= 4096U);
1709

1710
    for (i = 0; i < ((dstW + 1) >> 1); i++) {
1711 1712 1713 1714 1715
        int Y1 = (buf0[i * 2]     * yalpha1  + buf1[i * 2]     * yalpha)  >> 19;
        int Y2 = (buf0[i * 2 + 1] * yalpha1  + buf1[i * 2 + 1] * yalpha)  >> 19;
        int U  = (ubuf0[i]        * uvalpha1 + ubuf1[i]        * uvalpha) >> 19;
        int V  = (vbuf0[i]        * uvalpha1 + vbuf1[i]        * uvalpha) >> 19;
        int A1, A2;
1716 1717 1718
        const void *r =  c->table_rV[V + YUVRGB_TABLE_HEADROOM],
                   *g = (c->table_gU[U + YUVRGB_TABLE_HEADROOM] + c->table_gV[V + YUVRGB_TABLE_HEADROOM]),
                   *b =  c->table_bU[U + YUVRGB_TABLE_HEADROOM];
1719 1720 1721 1722

        if (hasAlpha) {
            A1 = (abuf0[i * 2    ] * yalpha1 + abuf1[i * 2    ] * yalpha) >> 19;
            A2 = (abuf0[i * 2 + 1] * yalpha1 + abuf1[i * 2 + 1] * yalpha) >> 19;
1723 1724
            A1 = av_clip_uint8(A1);
            A2 = av_clip_uint8(A2);
1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735
        }

        yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,
                      r, g, b, y, target, hasAlpha);
    }
}

static av_always_inline void
yuv2rgb_1_c_template(SwsContext *c, const int16_t *buf0,
                     const int16_t *ubuf[2], const int16_t *vbuf[2],
                     const int16_t *abuf0, uint8_t *dest, int dstW,
1736
                     int uvalpha, int y, enum AVPixelFormat target,
1737 1738
                     int hasAlpha)
{
1739
    const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
1740 1741 1742
    int i;

    if (uvalpha < 2048) {
1743
        for (i = 0; i < ((dstW + 1) >> 1); i++) {
1744 1745 1746 1747
            int Y1 = (buf0[i * 2    ] + 64) >> 7;
            int Y2 = (buf0[i * 2 + 1] + 64) >> 7;
            int U  = (ubuf0[i]        + 64) >> 7;
            int V  = (vbuf0[i]        + 64) >> 7;
1748
            int A1, A2;
1749 1750 1751
            const void *r =  c->table_rV[V + YUVRGB_TABLE_HEADROOM],
                       *g = (c->table_gU[U + YUVRGB_TABLE_HEADROOM] + c->table_gV[V + YUVRGB_TABLE_HEADROOM]),
                       *b =  c->table_bU[U + YUVRGB_TABLE_HEADROOM];
1752 1753

            if (hasAlpha) {
1754 1755
                A1 = abuf0[i * 2    ] * 255 + 16384 >> 15;
                A2 = abuf0[i * 2 + 1] * 255 + 16384 >> 15;
1756 1757
                A1 = av_clip_uint8(A1);
                A2 = av_clip_uint8(A2);
1758 1759 1760 1761 1762 1763
            }

            yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,
                          r, g, b, y, target, hasAlpha);
        }
    } else {
1764
        const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
1765
        for (i = 0; i < ((dstW + 1) >> 1); i++) {
1766 1767 1768 1769
            int Y1 = (buf0[i * 2    ]     +  64) >> 7;
            int Y2 = (buf0[i * 2 + 1]     +  64) >> 7;
            int U  = (ubuf0[i] + ubuf1[i] + 128) >> 8;
            int V  = (vbuf0[i] + vbuf1[i] + 128) >> 8;
1770
            int A1, A2;
1771 1772 1773
            const void *r =  c->table_rV[V + YUVRGB_TABLE_HEADROOM],
                       *g = (c->table_gU[U + YUVRGB_TABLE_HEADROOM] + c->table_gV[V + YUVRGB_TABLE_HEADROOM]),
                       *b =  c->table_bU[U + YUVRGB_TABLE_HEADROOM];
1774 1775

            if (hasAlpha) {
1776 1777
                A1 = (abuf0[i * 2    ] + 64) >> 7;
                A2 = (abuf0[i * 2 + 1] + 64) >> 7;
1778 1779
                A1 = av_clip_uint8(A1);
                A2 = av_clip_uint8(A2);
1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799
            }

            yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,
                          r, g, b, y, target, hasAlpha);
        }
    }
}

#define YUV2RGBWRAPPERX(name, base, ext, fmt, hasAlpha) \
static void name ## ext ## _X_c(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) \
{ \
    name ## base ## _X_c_template(c, lumFilter, lumSrc, lumFilterSize, \
                                  chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
                                  alpSrc, dest, dstW, y, fmt, hasAlpha); \
}
1800 1801

#define YUV2RGBWRAPPERX2(name, base, ext, fmt, hasAlpha) \
1802 1803 1804 1805 1806 1807 1808 1809
YUV2RGBWRAPPERX(name, base, ext, fmt, hasAlpha) \
static void name ## ext ## _2_c(SwsContext *c, const int16_t *buf[2], \
                                const int16_t *ubuf[2], const int16_t *vbuf[2], \
                                const int16_t *abuf[2], uint8_t *dest, int dstW, \
                                int yalpha, int uvalpha, int y) \
{ \
    name ## base ## _2_c_template(c, buf, ubuf, vbuf, abuf, \
                                  dest, dstW, yalpha, uvalpha, y, fmt, hasAlpha); \
1810 1811 1812 1813
}

#define YUV2RGBWRAPPER(name, base, ext, fmt, hasAlpha) \
YUV2RGBWRAPPERX2(name, base, ext, fmt, hasAlpha) \
1814 1815 1816 1817 1818 1819 1820 1821 1822 1823
static void name ## ext ## _1_c(SwsContext *c, const int16_t *buf0, \
                                const int16_t *ubuf[2], const int16_t *vbuf[2], \
                                const int16_t *abuf0, uint8_t *dest, int dstW, \
                                int uvalpha, int y) \
{ \
    name ## base ## _1_c_template(c, buf0, ubuf, vbuf, abuf0, dest, \
                                  dstW, uvalpha, y, fmt, hasAlpha); \
}

#if CONFIG_SMALL
1824 1825
YUV2RGBWRAPPER(yuv2rgb,,  32_1,  AV_PIX_FMT_RGB32_1,   CONFIG_SWSCALE_ALPHA && c->needAlpha)
YUV2RGBWRAPPER(yuv2rgb,,  32,    AV_PIX_FMT_RGB32,     CONFIG_SWSCALE_ALPHA && c->needAlpha)
1826 1827
#else
#if CONFIG_SWSCALE_ALPHA
1828 1829
YUV2RGBWRAPPER(yuv2rgb,, a32_1,  AV_PIX_FMT_RGB32_1,   1)
YUV2RGBWRAPPER(yuv2rgb,, a32,    AV_PIX_FMT_RGB32,     1)
1830
#endif
1831 1832
YUV2RGBWRAPPER(yuv2rgb,, x32_1,  AV_PIX_FMT_RGB32_1,   0)
YUV2RGBWRAPPER(yuv2rgb,, x32,    AV_PIX_FMT_RGB32,     0)
1833
#endif
1834 1835 1836 1837 1838 1839 1840 1841
YUV2RGBWRAPPER(yuv2, rgb, rgb24, AV_PIX_FMT_RGB24,   0)
YUV2RGBWRAPPER(yuv2, rgb, bgr24, AV_PIX_FMT_BGR24,   0)
YUV2RGBWRAPPER(yuv2rgb,,  16,    AV_PIX_FMT_RGB565,    0)
YUV2RGBWRAPPER(yuv2rgb,,  15,    AV_PIX_FMT_RGB555,    0)
YUV2RGBWRAPPER(yuv2rgb,,  12,    AV_PIX_FMT_RGB444,    0)
YUV2RGBWRAPPER(yuv2rgb,,   8,    AV_PIX_FMT_RGB8,      0)
YUV2RGBWRAPPER(yuv2rgb,,   4,    AV_PIX_FMT_RGB4,      0)
YUV2RGBWRAPPER(yuv2rgb,,   4b,   AV_PIX_FMT_RGB4_BYTE, 0)
1842

1843 1844 1845 1846 1847 1848 1849 1850 1851 1852
static av_always_inline void yuv2rgb_write_full(SwsContext *c,
    uint8_t *dest, int i, int Y, int A, int U, int V,
    int y, enum AVPixelFormat target, int hasAlpha, int err[4])
{
    int R, G, B;
    int isrgb8 = target == AV_PIX_FMT_BGR8 || target == AV_PIX_FMT_RGB8;

    Y -= c->yuv2rgb_y_offset;
    Y *= c->yuv2rgb_y_coeff;
    Y += 1 << 21;
1853 1854 1855
    R = (unsigned)Y + V*c->yuv2rgb_v2r_coeff;
    G = (unsigned)Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;
    B = (unsigned)Y +                          U*c->yuv2rgb_u2b_coeff;
1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902
    if ((R | G | B) & 0xC0000000) {
        R = av_clip_uintp2(R, 30);
        G = av_clip_uintp2(G, 30);
        B = av_clip_uintp2(B, 30);
    }

    switch(target) {
    case AV_PIX_FMT_ARGB:
        dest[0] = hasAlpha ? A : 255;
        dest[1] = R >> 22;
        dest[2] = G >> 22;
        dest[3] = B >> 22;
        break;
    case AV_PIX_FMT_RGB24:
        dest[0] = R >> 22;
        dest[1] = G >> 22;
        dest[2] = B >> 22;
        break;
    case AV_PIX_FMT_RGBA:
        dest[0] = R >> 22;
        dest[1] = G >> 22;
        dest[2] = B >> 22;
        dest[3] = hasAlpha ? A : 255;
        break;
    case AV_PIX_FMT_ABGR:
        dest[0] = hasAlpha ? A : 255;
        dest[1] = B >> 22;
        dest[2] = G >> 22;
        dest[3] = R >> 22;
        break;
    case AV_PIX_FMT_BGR24:
        dest[0] = B >> 22;
        dest[1] = G >> 22;
        dest[2] = R >> 22;
        break;
    case AV_PIX_FMT_BGRA:
        dest[0] = B >> 22;
        dest[1] = G >> 22;
        dest[2] = R >> 22;
        dest[3] = hasAlpha ? A : 255;
        break;
    case AV_PIX_FMT_BGR4_BYTE:
    case AV_PIX_FMT_RGB4_BYTE:
    case AV_PIX_FMT_BGR8:
    case AV_PIX_FMT_RGB8:
    {
        int r,g,b;
1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933

        switch (c->dither) {
        default:
        case SWS_DITHER_AUTO:
        case SWS_DITHER_ED:
            R >>= 22;
            G >>= 22;
            B >>= 22;
            R += (7*err[0] + 1*c->dither_error[0][i] + 5*c->dither_error[0][i+1] + 3*c->dither_error[0][i+2])>>4;
            G += (7*err[1] + 1*c->dither_error[1][i] + 5*c->dither_error[1][i+1] + 3*c->dither_error[1][i+2])>>4;
            B += (7*err[2] + 1*c->dither_error[2][i] + 5*c->dither_error[2][i+1] + 3*c->dither_error[2][i+2])>>4;
            c->dither_error[0][i] = err[0];
            c->dither_error[1][i] = err[1];
            c->dither_error[2][i] = err[2];
            r = R >> (isrgb8 ? 5 : 7);
            g = G >> (isrgb8 ? 5 : 6);
            b = B >> (isrgb8 ? 6 : 7);
            r = av_clip(r, 0, isrgb8 ? 7 : 1);
            g = av_clip(g, 0, isrgb8 ? 7 : 3);
            b = av_clip(b, 0, isrgb8 ? 3 : 1);
            err[0] = R - r*(isrgb8 ? 36 : 255);
            err[1] = G - g*(isrgb8 ? 36 : 85);
            err[2] = B - b*(isrgb8 ? 85 : 255);
            break;
        case SWS_DITHER_A_DITHER:
            if (isrgb8) {
  /* see http://pippin.gimp.org/a_dither/ for details/origin */
#define A_DITHER(u,v)   (((((u)+((v)*236))*119)&0xff))
                r = (((R >> 19) + A_DITHER(i,y)  -96)>>8);
                g = (((G >> 19) + A_DITHER(i + 17,y) - 96)>>8);
                b = (((B >> 20) + A_DITHER(i + 17*2,y) -96)>>8);
1934 1935 1936
                r = av_clip_uintp2(r, 3);
                g = av_clip_uintp2(g, 3);
                b = av_clip_uintp2(b, 2);
1937 1938 1939 1940
            } else {
                r = (((R >> 21) + A_DITHER(i,y)-256)>>8);
                g = (((G >> 19) + A_DITHER(i + 17,y)-256)>>8);
                b = (((B >> 21) + A_DITHER(i + 17*2,y)-256)>>8);
1941 1942 1943
                r = av_clip_uintp2(r, 1);
                g = av_clip_uintp2(g, 2);
                b = av_clip_uintp2(b, 1);
1944 1945 1946 1947 1948 1949 1950 1951 1952
            }
            break;
        case SWS_DITHER_X_DITHER:
            if (isrgb8) {
  /* see http://pippin.gimp.org/a_dither/ for details/origin */
#define X_DITHER(u,v)   (((((u)^((v)*237))*181)&0x1ff)/2)
                r = (((R >> 19) + X_DITHER(i,y) - 96)>>8);
                g = (((G >> 19) + X_DITHER(i + 17,y) - 96)>>8);
                b = (((B >> 20) + X_DITHER(i + 17*2,y) - 96)>>8);
1953 1954 1955
                r = av_clip_uintp2(r, 3);
                g = av_clip_uintp2(g, 3);
                b = av_clip_uintp2(b, 2);
1956 1957 1958 1959
            } else {
                r = (((R >> 21) + X_DITHER(i,y)-256)>>8);
                g = (((G >> 19) + X_DITHER(i + 17,y)-256)>>8);
                b = (((B >> 21) + X_DITHER(i + 17*2,y)-256)>>8);
1960 1961 1962
                r = av_clip_uintp2(r, 1);
                g = av_clip_uintp2(g, 2);
                b = av_clip_uintp2(b, 1);
1963 1964 1965 1966 1967
            }

            break;
        }

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981
        if(target == AV_PIX_FMT_BGR4_BYTE) {
            dest[0] = r + 2*g + 8*b;
        } else if(target == AV_PIX_FMT_RGB4_BYTE) {
            dest[0] = b + 2*g + 8*r;
        } else if(target == AV_PIX_FMT_BGR8) {
            dest[0] = r + 8*g + 64*b;
        } else if(target == AV_PIX_FMT_RGB8) {
            dest[0] = b + 4*g + 32*r;
        } else
            av_assert2(0);
        break;}
    }
}

1982 1983 1984 1985 1986 1987
static av_always_inline void
yuv2rgb_full_X_c_template(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,
1988
                          int dstW, int y, enum AVPixelFormat target, int hasAlpha)
1989 1990
{
    int i;
1991
    int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;
1992
    int err[4] = {0};
1993
    int A = 0; //init to silence warning
1994 1995 1996 1997

    if(   target == AV_PIX_FMT_BGR4_BYTE || target == AV_PIX_FMT_RGB4_BYTE
       || target == AV_PIX_FMT_BGR8      || target == AV_PIX_FMT_RGB8)
        step = 1;
1998 1999 2000

    for (i = 0; i < dstW; i++) {
        int j;
2001 2002 2003
        int Y = 1<<9;
        int U = (1<<9)-(128 << 19);
        int V = (1<<9)-(128 << 19);
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

        for (j = 0; j < lumFilterSize; j++) {
            Y += lumSrc[j][i] * lumFilter[j];
        }
        for (j = 0; j < chrFilterSize; j++) {
            U += chrUSrc[j][i] * chrFilter[j];
            V += chrVSrc[j][i] * chrFilter[j];
        }
        Y >>= 10;
        U >>= 10;
        V >>= 10;
        if (hasAlpha) {
2016
            A = 1 << 18;
2017 2018 2019 2020 2021 2022 2023
            for (j = 0; j < lumFilterSize; j++) {
                A += alpSrc[j][i] * lumFilter[j];
            }
            A >>= 19;
            if (A & 0x100)
                A = av_clip_uint8(A);
        }
2024
        yuv2rgb_write_full(c, dest, i, Y, A, U, V, y, target, hasAlpha, err);
2025 2026
        dest += step;
    }
2027 2028 2029
    c->dither_error[0][i] = err[0];
    c->dither_error[1][i] = err[1];
    c->dither_error[2][i] = err[2];
2030 2031
}

2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048
static av_always_inline void
yuv2rgb_full_2_c_template(SwsContext *c, const int16_t *buf[2],
                     const int16_t *ubuf[2], const int16_t *vbuf[2],
                     const int16_t *abuf[2], uint8_t *dest, int dstW,
                     int yalpha, int uvalpha, int y,
                     enum AVPixelFormat target, int hasAlpha)
{
    const int16_t *buf0  = buf[0],  *buf1  = buf[1],
                  *ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
                  *vbuf0 = vbuf[0], *vbuf1 = vbuf[1],
                  *abuf0 = hasAlpha ? abuf[0] : NULL,
                  *abuf1 = hasAlpha ? abuf[1] : NULL;
    int  yalpha1 = 4096 - yalpha;
    int uvalpha1 = 4096 - uvalpha;
    int i;
    int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;
    int err[4] = {0};
2049
    int A = 0; // init to silcene warning
2050

2051 2052 2053
    av_assert2(yalpha  <= 4096U);
    av_assert2(uvalpha <= 4096U);

2054 2055 2056 2057 2058 2059 2060 2061 2062 2063
    if(   target == AV_PIX_FMT_BGR4_BYTE || target == AV_PIX_FMT_RGB4_BYTE
       || target == AV_PIX_FMT_BGR8      || target == AV_PIX_FMT_RGB8)
        step = 1;

    for (i = 0; i < dstW; i++) {
        int Y = ( buf0[i] * yalpha1  +  buf1[i] * yalpha             ) >> 10; //FIXME rounding
        int U = (ubuf0[i] * uvalpha1 + ubuf1[i] * uvalpha-(128 << 19)) >> 10;
        int V = (vbuf0[i] * uvalpha1 + vbuf1[i] * uvalpha-(128 << 19)) >> 10;

        if (hasAlpha) {
2064 2065 2066
            A = (abuf0[i] * yalpha1 + abuf1[i] * yalpha + (1<<18)) >> 19;
            if (A & 0x100)
                A = av_clip_uint8(A);
2067 2068 2069 2070 2071 2072 2073 2074 2075 2076
        }

        yuv2rgb_write_full(c, dest, i, Y, A, U, V, y, target, hasAlpha, err);
        dest += step;
    }
    c->dither_error[0][i] = err[0];
    c->dither_error[1][i] = err[1];
    c->dither_error[2][i] = err[2];
}

2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093
static av_always_inline void
yuv2rgb_full_1_c_template(SwsContext *c, const int16_t *buf0,
                     const int16_t *ubuf[2], const int16_t *vbuf[2],
                     const int16_t *abuf0, uint8_t *dest, int dstW,
                     int uvalpha, int y, enum AVPixelFormat target,
                     int hasAlpha)
{
    const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
    int i;
    int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;
    int err[4] = {0};

    if(   target == AV_PIX_FMT_BGR4_BYTE || target == AV_PIX_FMT_RGB4_BYTE
       || target == AV_PIX_FMT_BGR8      || target == AV_PIX_FMT_RGB8)
        step = 1;

    if (uvalpha < 2048) {
2094
        int A = 0; //init to silence warning
2095
        for (i = 0; i < dstW; i++) {
2096
            int Y = buf0[i] * 4;
2097 2098
            int U = (ubuf0[i] - (128<<7)) * 4;
            int V = (vbuf0[i] - (128<<7)) * 4;
2099 2100

            if (hasAlpha) {
2101 2102 2103
                A = (abuf0[i] + 64) >> 7;
                if (A & 0x100)
                    A = av_clip_uint8(A);
2104 2105 2106 2107 2108 2109 2110
            }

            yuv2rgb_write_full(c, dest, i, Y, A, U, V, y, target, hasAlpha, err);
            dest += step;
        }
    } else {
        const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
2111
        int A = 0; //init to silence warning
2112
        for (i = 0; i < dstW; i++) {
2113 2114 2115
            int Y = buf0[i] * 4;
            int U = (ubuf0[i] + ubuf1[i] - (128<<8)) * 2;
            int V = (vbuf0[i] + vbuf1[i] - (128<<8)) * 2;
2116 2117

            if (hasAlpha) {
2118 2119 2120
                A = (abuf0[i] + 64) >> 7;
                if (A & 0x100)
                    A = av_clip_uint8(A);
2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132
            }

            yuv2rgb_write_full(c, dest, i, Y, A, U, V, y, target, hasAlpha, err);
            dest += step;
        }
    }

    c->dither_error[0][i] = err[0];
    c->dither_error[1][i] = err[1];
    c->dither_error[2][i] = err[2];
}

2133
#if CONFIG_SMALL
2134 2135 2136 2137
YUV2RGBWRAPPER(yuv2, rgb_full, bgra32_full, AV_PIX_FMT_BGRA,  CONFIG_SWSCALE_ALPHA && c->needAlpha)
YUV2RGBWRAPPER(yuv2, rgb_full, abgr32_full, AV_PIX_FMT_ABGR,  CONFIG_SWSCALE_ALPHA && c->needAlpha)
YUV2RGBWRAPPER(yuv2, rgb_full, rgba32_full, AV_PIX_FMT_RGBA,  CONFIG_SWSCALE_ALPHA && c->needAlpha)
YUV2RGBWRAPPER(yuv2, rgb_full, argb32_full, AV_PIX_FMT_ARGB,  CONFIG_SWSCALE_ALPHA && c->needAlpha)
2138 2139
#else
#if CONFIG_SWSCALE_ALPHA
2140 2141 2142 2143
YUV2RGBWRAPPER(yuv2, rgb_full, bgra32_full, AV_PIX_FMT_BGRA,  1)
YUV2RGBWRAPPER(yuv2, rgb_full, abgr32_full, AV_PIX_FMT_ABGR,  1)
YUV2RGBWRAPPER(yuv2, rgb_full, rgba32_full, AV_PIX_FMT_RGBA,  1)
YUV2RGBWRAPPER(yuv2, rgb_full, argb32_full, AV_PIX_FMT_ARGB,  1)
2144
#endif
2145 2146 2147 2148
YUV2RGBWRAPPER(yuv2, rgb_full, bgrx32_full, AV_PIX_FMT_BGRA,  0)
YUV2RGBWRAPPER(yuv2, rgb_full, xbgr32_full, AV_PIX_FMT_ABGR,  0)
YUV2RGBWRAPPER(yuv2, rgb_full, rgbx32_full, AV_PIX_FMT_RGBA,  0)
YUV2RGBWRAPPER(yuv2, rgb_full, xrgb32_full, AV_PIX_FMT_ARGB,  0)
2149
#endif
2150 2151
YUV2RGBWRAPPER(yuv2, rgb_full, bgr24_full,  AV_PIX_FMT_BGR24, 0)
YUV2RGBWRAPPER(yuv2, rgb_full, rgb24_full,  AV_PIX_FMT_RGB24, 0)
2152

2153 2154 2155 2156
YUV2RGBWRAPPER(yuv2, rgb_full, bgr4_byte_full,  AV_PIX_FMT_BGR4_BYTE, 0)
YUV2RGBWRAPPER(yuv2, rgb_full, rgb4_byte_full,  AV_PIX_FMT_RGB4_BYTE, 0)
YUV2RGBWRAPPER(yuv2, rgb_full, bgr8_full,   AV_PIX_FMT_BGR8,  0)
YUV2RGBWRAPPER(yuv2, rgb_full, rgb8_full,   AV_PIX_FMT_RGB8,  0)
2157

2158 2159
static void
yuv2gbrp_full_X_c(SwsContext *c, const int16_t *lumFilter,
2160 2161 2162 2163 2164
                  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)
2165
{
2166
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->dstFormat);
2167
    int i;
2168
    int hasAlpha = (desc->flags & AV_PIX_FMT_FLAG_ALPHA) && alpSrc;
2169
    uint16_t **dest16 = (uint16_t**)dest;
2170
    int SH = 22 + 8 - desc->comp[0].depth;
2171
    int A = 0; // init to silence warning
2172 2173 2174

    for (i = 0; i < dstW; i++) {
        int j;
2175 2176 2177
        int Y = 1 << 9;
        int U = (1 << 9) - (128 << 19);
        int V = (1 << 9) - (128 << 19);
2178
        int R, G, B;
2179

2180
        for (j = 0; j < lumFilterSize; j++)
2181
            Y += lumSrc[j][i] * lumFilter[j];
2182

2183 2184 2185 2186
        for (j = 0; j < chrFilterSize; j++) {
            U += chrUSrc[j][i] * chrFilter[j];
            V += chrVSrc[j][i] * chrFilter[j];
        }
2187

2188 2189 2190
        Y >>= 10;
        U >>= 10;
        V >>= 10;
2191

2192 2193
        if (hasAlpha) {
            A = 1 << 18;
2194 2195

            for (j = 0; j < lumFilterSize; j++)
2196
                A += alpSrc[j][i] * lumFilter[j];
2197

2198 2199
            if (A & 0xF8000000)
                A =  av_clip_uintp2(A, 27);
2200
        }
2201

2202 2203
        Y -= c->yuv2rgb_y_offset;
        Y *= c->yuv2rgb_y_coeff;
2204
        Y += 1 << (SH-1);
2205 2206 2207 2208
        R = Y + V * c->yuv2rgb_v2r_coeff;
        G = Y + V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
        B = Y +                            U * c->yuv2rgb_u2b_coeff;

2209 2210 2211 2212 2213 2214
        if ((R | G | B) & 0xC0000000) {
            R = av_clip_uintp2(R, 30);
            G = av_clip_uintp2(G, 30);
            B = av_clip_uintp2(B, 30);
        }

2215 2216 2217 2218
        if (SH != 22) {
            dest16[0][i] = G >> SH;
            dest16[1][i] = B >> SH;
            dest16[2][i] = R >> SH;
2219
            if (hasAlpha)
2220
                dest16[3][i] = A >> (SH - 3);
2221 2222 2223 2224
        } else {
            dest[0][i] = G >> 22;
            dest[1][i] = B >> 22;
            dest[2][i] = R >> 22;
2225
            if (hasAlpha)
2226
                dest[3][i] = A >> 19;
2227 2228 2229 2230 2231 2232 2233
        }
    }
    if (SH != 22 && (!isBE(c->dstFormat)) != (!HAVE_BIGENDIAN)) {
        for (i = 0; i < dstW; i++) {
            dest16[0][i] = av_bswap16(dest16[0][i]);
            dest16[1][i] = av_bswap16(dest16[1][i]);
            dest16[2][i] = av_bswap16(dest16[2][i]);
2234 2235
            if (hasAlpha)
                dest16[3][i] = av_bswap16(dest16[3][i]);
2236
        }
2237 2238 2239
    }
}

2240 2241 2242 2243 2244
static void
yuv2gbrp16_full_X_c(SwsContext *c, const int16_t *lumFilter,
                    const int16_t **lumSrcx, int lumFilterSize,
                    const int16_t *chrFilter, const int16_t **chrUSrcx,
                    const int16_t **chrVSrcx, int chrFilterSize,
2245
                    const int16_t **alpSrcx, uint8_t **dest,
2246 2247 2248 2249
                    int dstW, int y)
{
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->dstFormat);
    int i;
2250
    int hasAlpha = (desc->flags & AV_PIX_FMT_FLAG_ALPHA) && alpSrcx;
2251 2252 2253 2254
    uint16_t **dest16 = (uint16_t**)dest;
    const int32_t **lumSrc  = (const int32_t**)lumSrcx;
    const int32_t **chrUSrc = (const int32_t**)chrUSrcx;
    const int32_t **chrVSrc = (const int32_t**)chrVSrcx;
2255
    const int32_t **alpSrc  = (const int32_t**)alpSrcx;
2256 2257 2258 2259 2260 2261

    for (i = 0; i < dstW; i++) {
        int j;
        int Y = -0x40000000;
        int U = -(128 << 23);
        int V = -(128 << 23);
2262
        int R, G, B, A;
2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277

        for (j = 0; j < lumFilterSize; j++)
            Y += lumSrc[j][i] * (unsigned)lumFilter[j];

        for (j = 0; j < chrFilterSize; j++) {
            U += chrUSrc[j][i] * (unsigned)chrFilter[j];
            V += chrVSrc[j][i] * (unsigned)chrFilter[j];
        }

        Y >>= 14;
        Y += 0x10000;
        U >>= 14;
        V >>= 14;

        if (hasAlpha) {
2278
            A = -0x40000000;
2279 2280

            for (j = 0; j < lumFilterSize; j++)
2281
                A += alpSrc[j][i] * (unsigned)lumFilter[j];
2282

2283 2284
            A >>= 1;
            A += 0x20002000;
2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301
        }

        Y -= c->yuv2rgb_y_offset;
        Y *= c->yuv2rgb_y_coeff;
        Y += 1 << 13;
        R = V * c->yuv2rgb_v2r_coeff;
        G = V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
        B =                            U * c->yuv2rgb_u2b_coeff;

        R = av_clip_uintp2(Y + R, 30);
        G = av_clip_uintp2(Y + G, 30);
        B = av_clip_uintp2(Y + B, 30);

        dest16[0][i] = G >> 14;
        dest16[1][i] = B >> 14;
        dest16[2][i] = R >> 14;
        if (hasAlpha)
2302
            dest16[3][i] = av_clip_uintp2(A, 30) >> 14;
2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314
    }
    if ((!isBE(c->dstFormat)) != (!HAVE_BIGENDIAN)) {
        for (i = 0; i < dstW; i++) {
            dest16[0][i] = av_bswap16(dest16[0][i]);
            dest16[1][i] = av_bswap16(dest16[1][i]);
            dest16[2][i] = av_bswap16(dest16[2][i]);
            if (hasAlpha)
                dest16[3][i] = av_bswap16(dest16[3][i]);
        }
    }
}

2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346
static void
yuv2ya8_1_c(SwsContext *c, const int16_t *buf0,
            const int16_t *ubuf[2], const int16_t *vbuf[2],
            const int16_t *abuf0, uint8_t *dest, int dstW,
            int uvalpha, int y)
{
    int hasAlpha = !!abuf0;
    int i;

    for (i = 0; i < dstW; i++) {
        int Y = (buf0[i] + 64) >> 7;
        int A;

        Y = av_clip_uint8(Y);

        if (hasAlpha) {
            A = (abuf0[i] + 64) >> 7;
            if (A & 0x100)
                A = av_clip_uint8(A);
        }

        dest[i * 2    ] = Y;
        dest[i * 2 + 1] = hasAlpha ? A : 255;
    }
}

static void
yuv2ya8_2_c(SwsContext *c, const int16_t *buf[2],
            const int16_t *ubuf[2], const int16_t *vbuf[2],
            const int16_t *abuf[2], uint8_t *dest, int dstW,
            int yalpha, int uvalpha, int y)
{
2347
    int hasAlpha = abuf && abuf[0] && abuf[1];
2348 2349 2350 2351 2352 2353
    const int16_t *buf0  = buf[0],  *buf1  = buf[1],
                  *abuf0 = hasAlpha ? abuf[0] : NULL,
                  *abuf1 = hasAlpha ? abuf[1] : NULL;
    int  yalpha1 = 4096 - yalpha;
    int i;

2354 2355
    av_assert2(yalpha  <= 4096U);

2356
    for (i = 0; i < dstW; i++) {
2357
        int Y = (buf0[i] * yalpha1 + buf1[i] * yalpha) >> 19;
2358 2359 2360 2361 2362
        int A;

        Y = av_clip_uint8(Y);

        if (hasAlpha) {
2363
            A = (abuf0[i] * yalpha1 + abuf1[i] * yalpha) >> 19;
2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407
            A = av_clip_uint8(A);
        }

        dest[i * 2    ] = Y;
        dest[i * 2 + 1] = hasAlpha ? A : 255;
    }
}

static void
yuv2ya8_X_c(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)
{
    int hasAlpha = !!alpSrc;
    int i;

    for (i = 0; i < dstW; i++) {
        int j;
        int Y = 1 << 18, A = 1 << 18;

        for (j = 0; j < lumFilterSize; j++)
            Y += lumSrc[j][i] * lumFilter[j];

        Y >>= 19;
        if (Y  & 0x100)
            Y = av_clip_uint8(Y);

        if (hasAlpha) {
            for (j = 0; j < lumFilterSize; j++)
                A += alpSrc[j][i] * lumFilter[j];

            A >>= 19;

            if (A & 0x100)
                A = av_clip_uint8(A);
        }

        dest[2 * i    ] = Y;
        dest[2 * i + 1] = hasAlpha ? A : 255;
    }
}

2408 2409
static void
yuv2ayuv64le_X_c(SwsContext *c, const int16_t *lumFilter,
2410 2411 2412 2413
                 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)
2414
{
2415 2416 2417 2418
    const int32_t **lumSrc  = (const int32_t **) _lumSrc,
                  **chrUSrc = (const int32_t **) _chrUSrc,
                  **chrVSrc = (const int32_t **) _chrVSrc,
                  **alpSrc  = (const int32_t **) _alpSrc;
2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456
    int hasAlpha = !!alpSrc;
    int i;

    for (i = 0; i < dstW; i++) {
        int Y = 1 << 14, U = 1 << 14;
        int V = 1 << 14, A = 1 << 14;
        int j;

        Y -= 0x40000000;
        U -= 0x40000000;
        V -= 0x40000000;
        A -= 0x40000000;

        for (j = 0; j < lumFilterSize; j++)
            Y += lumSrc[j][i] * (unsigned)lumFilter[j];

        for (j = 0; j < chrFilterSize; j++)
            U += chrUSrc[j][i] * (unsigned)chrFilter[j];

        for (j = 0; j < chrFilterSize; j++)
            V += chrVSrc[j][i] * (unsigned)chrFilter[j];

        if (hasAlpha)
            for (j = 0; j < lumFilterSize; j++)
                A += alpSrc[j][i] * (unsigned)lumFilter[j];

        Y = 0x8000 + av_clip_int16(Y >> 15);
        U = 0x8000 + av_clip_int16(U >> 15);
        V = 0x8000 + av_clip_int16(V >> 15);
        A = 0x8000 + av_clip_int16(A >> 15);

        AV_WL16(dest + 8 * i, hasAlpha ? A : 65535);
        AV_WL16(dest + 8 * i + 2, Y);
        AV_WL16(dest + 8 * i + 4, U);
        AV_WL16(dest + 8 * i + 6, V);
    }
}

2457 2458 2459 2460 2461 2462
av_cold void ff_sws_init_output_funcs(SwsContext *c,
                                      yuv2planar1_fn *yuv2plane1,
                                      yuv2planarX_fn *yuv2planeX,
                                      yuv2interleavedX_fn *yuv2nv12cX,
                                      yuv2packed1_fn *yuv2packed1,
                                      yuv2packed2_fn *yuv2packed2,
2463 2464
                                      yuv2packedX_fn *yuv2packedX,
                                      yuv2anyX_fn *yuv2anyX)
2465
{
2466
    enum AVPixelFormat dstFormat = c->dstFormat;
2467
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);
2468

2469 2470 2471 2472 2473
    if (dstFormat == AV_PIX_FMT_P010LE || dstFormat == AV_PIX_FMT_P010BE) {
        *yuv2plane1 = isBE(dstFormat) ? yuv2p010l1_BE_c : yuv2p010l1_LE_c;
        *yuv2planeX = isBE(dstFormat) ? yuv2p010lX_BE_c : yuv2p010lX_LE_c;
        *yuv2nv12cX = yuv2p010cX_c;
    } else if (is16BPS(dstFormat)) {
2474 2475
        *yuv2planeX = isBE(dstFormat) ? yuv2planeX_16BE_c  : yuv2planeX_16LE_c;
        *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_16BE_c  : yuv2plane1_16LE_c;
2476 2477 2478
        if (dstFormat == AV_PIX_FMT_P016LE || dstFormat == AV_PIX_FMT_P016BE) {
          *yuv2nv12cX = yuv2p016cX_c;
        }
2479
    } else if (isNBPS(dstFormat)) {
2480
        if (desc->comp[0].depth == 9) {
2481 2482
            *yuv2planeX = isBE(dstFormat) ? yuv2planeX_9BE_c  : yuv2planeX_9LE_c;
            *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_9BE_c  : yuv2plane1_9LE_c;
2483
        } else if (desc->comp[0].depth == 10) {
2484 2485
            *yuv2planeX = isBE(dstFormat) ? yuv2planeX_10BE_c  : yuv2planeX_10LE_c;
            *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_10BE_c  : yuv2plane1_10LE_c;
2486
        } else if (desc->comp[0].depth == 12) {
2487 2488
            *yuv2planeX = isBE(dstFormat) ? yuv2planeX_12BE_c  : yuv2planeX_12LE_c;
            *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_12BE_c  : yuv2plane1_12LE_c;
2489
        } else if (desc->comp[0].depth == 14) {
2490 2491 2492 2493
            *yuv2planeX = isBE(dstFormat) ? yuv2planeX_14BE_c  : yuv2planeX_14LE_c;
            *yuv2plane1 = isBE(dstFormat) ? yuv2plane1_14BE_c  : yuv2plane1_14LE_c;
        } else
            av_assert0(0);
2494 2495 2496 2497 2498 2499
    } else if (dstFormat == AV_PIX_FMT_GRAYF32BE) {
        *yuv2planeX = yuv2planeX_floatBE_c;
        *yuv2plane1 = yuv2plane1_floatBE_c;
    } else if (dstFormat == AV_PIX_FMT_GRAYF32LE) {
        *yuv2planeX = yuv2planeX_floatLE_c;
        *yuv2plane1 = yuv2plane1_floatLE_c;
2500 2501 2502
    } else {
        *yuv2plane1 = yuv2plane1_8_c;
        *yuv2planeX = yuv2planeX_8_c;
2503 2504
        if (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21 ||
            dstFormat == AV_PIX_FMT_NV24 || dstFormat == AV_PIX_FMT_NV42)
2505 2506 2507 2508 2509
            *yuv2nv12cX = yuv2nv12cX_c;
    }

    if(c->flags & SWS_FULL_CHR_H_INT) {
        switch (dstFormat) {
2510
            case AV_PIX_FMT_RGBA:
2511 2512
#if CONFIG_SMALL
                *yuv2packedX = yuv2rgba32_full_X_c;
2513
                *yuv2packed2 = yuv2rgba32_full_2_c;
2514
                *yuv2packed1 = yuv2rgba32_full_1_c;
2515 2516
#else
#if CONFIG_SWSCALE_ALPHA
2517
                if (c->needAlpha) {
2518
                    *yuv2packedX = yuv2rgba32_full_X_c;
2519
                    *yuv2packed2 = yuv2rgba32_full_2_c;
2520
                    *yuv2packed1 = yuv2rgba32_full_1_c;
2521 2522 2523 2524
                } else
#endif /* CONFIG_SWSCALE_ALPHA */
                {
                    *yuv2packedX = yuv2rgbx32_full_X_c;
2525
                    *yuv2packed2 = yuv2rgbx32_full_2_c;
2526
                    *yuv2packed1 = yuv2rgbx32_full_1_c;
2527 2528 2529
                }
#endif /* !CONFIG_SMALL */
                break;
2530
            case AV_PIX_FMT_ARGB:
2531 2532
#if CONFIG_SMALL
                *yuv2packedX = yuv2argb32_full_X_c;
2533
                *yuv2packed2 = yuv2argb32_full_2_c;
2534
                *yuv2packed1 = yuv2argb32_full_1_c;
2535 2536
#else
#if CONFIG_SWSCALE_ALPHA
2537
                if (c->needAlpha) {
2538
                    *yuv2packedX = yuv2argb32_full_X_c;
2539
                    *yuv2packed2 = yuv2argb32_full_2_c;
2540
                    *yuv2packed1 = yuv2argb32_full_1_c;
2541 2542 2543 2544
                } else
#endif /* CONFIG_SWSCALE_ALPHA */
                {
                    *yuv2packedX = yuv2xrgb32_full_X_c;
2545
                    *yuv2packed2 = yuv2xrgb32_full_2_c;
2546
                    *yuv2packed1 = yuv2xrgb32_full_1_c;
2547 2548 2549
                }
#endif /* !CONFIG_SMALL */
                break;
2550
            case AV_PIX_FMT_BGRA:
2551 2552
#if CONFIG_SMALL
                *yuv2packedX = yuv2bgra32_full_X_c;
2553
                *yuv2packed2 = yuv2bgra32_full_2_c;
2554
                *yuv2packed1 = yuv2bgra32_full_1_c;
2555 2556
#else
#if CONFIG_SWSCALE_ALPHA
2557
                if (c->needAlpha) {
2558
                    *yuv2packedX = yuv2bgra32_full_X_c;
2559
                    *yuv2packed2 = yuv2bgra32_full_2_c;
2560
                    *yuv2packed1 = yuv2bgra32_full_1_c;
2561 2562 2563 2564
                } else
#endif /* CONFIG_SWSCALE_ALPHA */
                {
                    *yuv2packedX = yuv2bgrx32_full_X_c;
2565
                    *yuv2packed2 = yuv2bgrx32_full_2_c;
2566
                    *yuv2packed1 = yuv2bgrx32_full_1_c;
2567 2568 2569
                }
#endif /* !CONFIG_SMALL */
                break;
2570
            case AV_PIX_FMT_ABGR:
2571 2572
#if CONFIG_SMALL
                *yuv2packedX = yuv2abgr32_full_X_c;
2573
                *yuv2packed2 = yuv2abgr32_full_2_c;
2574
                *yuv2packed1 = yuv2abgr32_full_1_c;
2575 2576
#else
#if CONFIG_SWSCALE_ALPHA
2577
                if (c->needAlpha) {
2578
                    *yuv2packedX = yuv2abgr32_full_X_c;
2579
                    *yuv2packed2 = yuv2abgr32_full_2_c;
2580
                    *yuv2packed1 = yuv2abgr32_full_1_c;
2581 2582 2583 2584
                } else
#endif /* CONFIG_SWSCALE_ALPHA */
                {
                    *yuv2packedX = yuv2xbgr32_full_X_c;
2585
                    *yuv2packed2 = yuv2xbgr32_full_2_c;
2586
                    *yuv2packed1 = yuv2xbgr32_full_1_c;
2587 2588 2589
                }
#endif /* !CONFIG_SMALL */
                break;
2590 2591
        case AV_PIX_FMT_RGBA64LE:
#if CONFIG_SWSCALE_ALPHA
2592
            if (c->needAlpha) {
2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605
                *yuv2packedX = yuv2rgba64le_full_X_c;
                *yuv2packed2 = yuv2rgba64le_full_2_c;
                *yuv2packed1 = yuv2rgba64le_full_1_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packedX = yuv2rgbx64le_full_X_c;
                *yuv2packed2 = yuv2rgbx64le_full_2_c;
                *yuv2packed1 = yuv2rgbx64le_full_1_c;
            }
            break;
        case AV_PIX_FMT_RGBA64BE:
#if CONFIG_SWSCALE_ALPHA
2606
            if (c->needAlpha) {
2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619
                *yuv2packedX = yuv2rgba64be_full_X_c;
                *yuv2packed2 = yuv2rgba64be_full_2_c;
                *yuv2packed1 = yuv2rgba64be_full_1_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packedX = yuv2rgbx64be_full_X_c;
                *yuv2packed2 = yuv2rgbx64be_full_2_c;
                *yuv2packed1 = yuv2rgbx64be_full_1_c;
            }
            break;
        case AV_PIX_FMT_BGRA64LE:
#if CONFIG_SWSCALE_ALPHA
2620
            if (c->needAlpha) {
2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633
                *yuv2packedX = yuv2bgra64le_full_X_c;
                *yuv2packed2 = yuv2bgra64le_full_2_c;
                *yuv2packed1 = yuv2bgra64le_full_1_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packedX = yuv2bgrx64le_full_X_c;
                *yuv2packed2 = yuv2bgrx64le_full_2_c;
                *yuv2packed1 = yuv2bgrx64le_full_1_c;
            }
            break;
        case AV_PIX_FMT_BGRA64BE:
#if CONFIG_SWSCALE_ALPHA
2634
            if (c->needAlpha) {
2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647
                *yuv2packedX = yuv2bgra64be_full_X_c;
                *yuv2packed2 = yuv2bgra64be_full_2_c;
                *yuv2packed1 = yuv2bgra64be_full_1_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packedX = yuv2bgrx64be_full_X_c;
                *yuv2packed2 = yuv2bgrx64be_full_2_c;
                *yuv2packed1 = yuv2bgrx64be_full_1_c;
            }
            break;

        case AV_PIX_FMT_RGB24:
2648
            *yuv2packedX = yuv2rgb24_full_X_c;
2649
            *yuv2packed2 = yuv2rgb24_full_2_c;
2650
            *yuv2packed1 = yuv2rgb24_full_1_c;
2651
            break;
2652
        case AV_PIX_FMT_BGR24:
2653
            *yuv2packedX = yuv2bgr24_full_X_c;
2654
            *yuv2packed2 = yuv2bgr24_full_2_c;
2655
            *yuv2packed1 = yuv2bgr24_full_1_c;
2656
            break;
2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676
        case AV_PIX_FMT_RGB48LE:
            *yuv2packedX = yuv2rgb48le_full_X_c;
            *yuv2packed2 = yuv2rgb48le_full_2_c;
            *yuv2packed1 = yuv2rgb48le_full_1_c;
            break;
        case AV_PIX_FMT_BGR48LE:
            *yuv2packedX = yuv2bgr48le_full_X_c;
            *yuv2packed2 = yuv2bgr48le_full_2_c;
            *yuv2packed1 = yuv2bgr48le_full_1_c;
            break;
        case AV_PIX_FMT_RGB48BE:
            *yuv2packedX = yuv2rgb48be_full_X_c;
            *yuv2packed2 = yuv2rgb48be_full_2_c;
            *yuv2packed1 = yuv2rgb48be_full_1_c;
            break;
        case AV_PIX_FMT_BGR48BE:
            *yuv2packedX = yuv2bgr48be_full_X_c;
            *yuv2packed2 = yuv2bgr48be_full_2_c;
            *yuv2packed1 = yuv2bgr48be_full_1_c;
            break;
2677 2678
        case AV_PIX_FMT_BGR4_BYTE:
            *yuv2packedX = yuv2bgr4_byte_full_X_c;
2679
            *yuv2packed2 = yuv2bgr4_byte_full_2_c;
2680
            *yuv2packed1 = yuv2bgr4_byte_full_1_c;
2681 2682 2683
            break;
        case AV_PIX_FMT_RGB4_BYTE:
            *yuv2packedX = yuv2rgb4_byte_full_X_c;
2684
            *yuv2packed2 = yuv2rgb4_byte_full_2_c;
2685
            *yuv2packed1 = yuv2rgb4_byte_full_1_c;
2686 2687 2688
            break;
        case AV_PIX_FMT_BGR8:
            *yuv2packedX = yuv2bgr8_full_X_c;
2689
            *yuv2packed2 = yuv2bgr8_full_2_c;
2690
            *yuv2packed1 = yuv2bgr8_full_1_c;
2691 2692 2693
            break;
        case AV_PIX_FMT_RGB8:
            *yuv2packedX = yuv2rgb8_full_X_c;
2694
            *yuv2packed2 = yuv2rgb8_full_2_c;
2695
            *yuv2packed1 = yuv2rgb8_full_1_c;
2696
            break;
2697
        case AV_PIX_FMT_GBRP:
2698 2699 2700 2701 2702 2703 2704 2705
        case AV_PIX_FMT_GBRP9BE:
        case AV_PIX_FMT_GBRP9LE:
        case AV_PIX_FMT_GBRP10BE:
        case AV_PIX_FMT_GBRP10LE:
        case AV_PIX_FMT_GBRP12BE:
        case AV_PIX_FMT_GBRP12LE:
        case AV_PIX_FMT_GBRP14BE:
        case AV_PIX_FMT_GBRP14LE:
2706
        case AV_PIX_FMT_GBRAP:
2707 2708
        case AV_PIX_FMT_GBRAP10BE:
        case AV_PIX_FMT_GBRAP10LE:
2709 2710
        case AV_PIX_FMT_GBRAP12BE:
        case AV_PIX_FMT_GBRAP12LE:
2711 2712
            *yuv2anyX = yuv2gbrp_full_X_c;
            break;
2713 2714 2715 2716 2717 2718
        case AV_PIX_FMT_GBRP16BE:
        case AV_PIX_FMT_GBRP16LE:
        case AV_PIX_FMT_GBRAP16BE:
        case AV_PIX_FMT_GBRAP16LE:
            *yuv2anyX = yuv2gbrp16_full_X_c;
            break;
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        }
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        if (!*yuv2packedX && !*yuv2anyX)
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            goto YUV_PACKED;
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    } else {
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        YUV_PACKED:
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        switch (dstFormat) {
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        case AV_PIX_FMT_RGBA64LE:
#if CONFIG_SWSCALE_ALPHA
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            if (c->needAlpha) {
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                *yuv2packed1 = yuv2rgba64le_1_c;
                *yuv2packed2 = yuv2rgba64le_2_c;
                *yuv2packedX = yuv2rgba64le_X_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packed1 = yuv2rgbx64le_1_c;
                *yuv2packed2 = yuv2rgbx64le_2_c;
                *yuv2packedX = yuv2rgbx64le_X_c;
            }
            break;
        case AV_PIX_FMT_RGBA64BE:
#if CONFIG_SWSCALE_ALPHA
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            if (c->needAlpha) {
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                *yuv2packed1 = yuv2rgba64be_1_c;
                *yuv2packed2 = yuv2rgba64be_2_c;
                *yuv2packedX = yuv2rgba64be_X_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packed1 = yuv2rgbx64be_1_c;
                *yuv2packed2 = yuv2rgbx64be_2_c;
                *yuv2packedX = yuv2rgbx64be_X_c;
            }
            break;
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        case AV_PIX_FMT_BGRA64LE:
#if CONFIG_SWSCALE_ALPHA
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            if (c->needAlpha) {
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                *yuv2packed1 = yuv2bgra64le_1_c;
                *yuv2packed2 = yuv2bgra64le_2_c;
                *yuv2packedX = yuv2bgra64le_X_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packed1 = yuv2bgrx64le_1_c;
                *yuv2packed2 = yuv2bgrx64le_2_c;
                *yuv2packedX = yuv2bgrx64le_X_c;
            }
            break;
        case AV_PIX_FMT_BGRA64BE:
#if CONFIG_SWSCALE_ALPHA
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            if (c->needAlpha) {
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                *yuv2packed1 = yuv2bgra64be_1_c;
                *yuv2packed2 = yuv2bgra64be_2_c;
                *yuv2packedX = yuv2bgra64be_X_c;
            } else
#endif /* CONFIG_SWSCALE_ALPHA */
            {
                *yuv2packed1 = yuv2bgrx64be_1_c;
                *yuv2packed2 = yuv2bgrx64be_2_c;
                *yuv2packedX = yuv2bgrx64be_X_c;
            }
            break;
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        case AV_PIX_FMT_RGB48LE:
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            *yuv2packed1 = yuv2rgb48le_1_c;
            *yuv2packed2 = yuv2rgb48le_2_c;
            *yuv2packedX = yuv2rgb48le_X_c;
            break;
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        case AV_PIX_FMT_RGB48BE:
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            *yuv2packed1 = yuv2rgb48be_1_c;
            *yuv2packed2 = yuv2rgb48be_2_c;
            *yuv2packedX = yuv2rgb48be_X_c;
            break;
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        case AV_PIX_FMT_BGR48LE:
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            *yuv2packed1 = yuv2bgr48le_1_c;
            *yuv2packed2 = yuv2bgr48le_2_c;
            *yuv2packedX = yuv2bgr48le_X_c;
            break;
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        case AV_PIX_FMT_BGR48BE:
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            *yuv2packed1 = yuv2bgr48be_1_c;
            *yuv2packed2 = yuv2bgr48be_2_c;
            *yuv2packedX = yuv2bgr48be_X_c;
            break;
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        case AV_PIX_FMT_RGB32:
        case AV_PIX_FMT_BGR32:
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#if CONFIG_SMALL
            *yuv2packed1 = yuv2rgb32_1_c;
            *yuv2packed2 = yuv2rgb32_2_c;
            *yuv2packedX = yuv2rgb32_X_c;
#else
#if CONFIG_SWSCALE_ALPHA
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                if (c->needAlpha) {
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                    *yuv2packed1 = yuv2rgba32_1_c;
                    *yuv2packed2 = yuv2rgba32_2_c;
                    *yuv2packedX = yuv2rgba32_X_c;
                } else
#endif /* CONFIG_SWSCALE_ALPHA */
                {
                    *yuv2packed1 = yuv2rgbx32_1_c;
                    *yuv2packed2 = yuv2rgbx32_2_c;
                    *yuv2packedX = yuv2rgbx32_X_c;
                }
#endif /* !CONFIG_SMALL */
            break;
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        case AV_PIX_FMT_RGB32_1:
        case AV_PIX_FMT_BGR32_1:
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#if CONFIG_SMALL
                *yuv2packed1 = yuv2rgb32_1_1_c;
                *yuv2packed2 = yuv2rgb32_1_2_c;
                *yuv2packedX = yuv2rgb32_1_X_c;
#else
#if CONFIG_SWSCALE_ALPHA
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                if (c->needAlpha) {
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                    *yuv2packed1 = yuv2rgba32_1_1_c;
                    *yuv2packed2 = yuv2rgba32_1_2_c;
                    *yuv2packedX = yuv2rgba32_1_X_c;
                } else
#endif /* CONFIG_SWSCALE_ALPHA */
                {
                    *yuv2packed1 = yuv2rgbx32_1_1_c;
                    *yuv2packed2 = yuv2rgbx32_1_2_c;
                    *yuv2packedX = yuv2rgbx32_1_X_c;
                }
#endif /* !CONFIG_SMALL */
                break;
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        case AV_PIX_FMT_RGB24:
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            *yuv2packed1 = yuv2rgb24_1_c;
            *yuv2packed2 = yuv2rgb24_2_c;
            *yuv2packedX = yuv2rgb24_X_c;
            break;
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        case AV_PIX_FMT_BGR24:
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            *yuv2packed1 = yuv2bgr24_1_c;
            *yuv2packed2 = yuv2bgr24_2_c;
            *yuv2packedX = yuv2bgr24_X_c;
            break;
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        case AV_PIX_FMT_RGB565LE:
        case AV_PIX_FMT_RGB565BE:
        case AV_PIX_FMT_BGR565LE:
        case AV_PIX_FMT_BGR565BE:
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            *yuv2packed1 = yuv2rgb16_1_c;
            *yuv2packed2 = yuv2rgb16_2_c;
            *yuv2packedX = yuv2rgb16_X_c;
            break;
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        case AV_PIX_FMT_RGB555LE:
        case AV_PIX_FMT_RGB555BE:
        case AV_PIX_FMT_BGR555LE:
        case AV_PIX_FMT_BGR555BE:
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            *yuv2packed1 = yuv2rgb15_1_c;
            *yuv2packed2 = yuv2rgb15_2_c;
            *yuv2packedX = yuv2rgb15_X_c;
            break;
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        case AV_PIX_FMT_RGB444LE:
        case AV_PIX_FMT_RGB444BE:
        case AV_PIX_FMT_BGR444LE:
        case AV_PIX_FMT_BGR444BE:
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            *yuv2packed1 = yuv2rgb12_1_c;
            *yuv2packed2 = yuv2rgb12_2_c;
            *yuv2packedX = yuv2rgb12_X_c;
            break;
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        case AV_PIX_FMT_RGB8:
        case AV_PIX_FMT_BGR8:
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            *yuv2packed1 = yuv2rgb8_1_c;
            *yuv2packed2 = yuv2rgb8_2_c;
            *yuv2packedX = yuv2rgb8_X_c;
            break;
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        case AV_PIX_FMT_RGB4:
        case AV_PIX_FMT_BGR4:
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            *yuv2packed1 = yuv2rgb4_1_c;
            *yuv2packed2 = yuv2rgb4_2_c;
            *yuv2packedX = yuv2rgb4_X_c;
            break;
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        case AV_PIX_FMT_RGB4_BYTE:
        case AV_PIX_FMT_BGR4_BYTE:
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            *yuv2packed1 = yuv2rgb4b_1_c;
            *yuv2packed2 = yuv2rgb4b_2_c;
            *yuv2packedX = yuv2rgb4b_X_c;
            break;
        }
    }
    switch (dstFormat) {
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    case AV_PIX_FMT_MONOWHITE:
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        *yuv2packed1 = yuv2monowhite_1_c;
        *yuv2packed2 = yuv2monowhite_2_c;
        *yuv2packedX = yuv2monowhite_X_c;
        break;
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    case AV_PIX_FMT_MONOBLACK:
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        *yuv2packed1 = yuv2monoblack_1_c;
        *yuv2packed2 = yuv2monoblack_2_c;
        *yuv2packedX = yuv2monoblack_X_c;
        break;
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    case AV_PIX_FMT_YUYV422:
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        *yuv2packed1 = yuv2yuyv422_1_c;
        *yuv2packed2 = yuv2yuyv422_2_c;
        *yuv2packedX = yuv2yuyv422_X_c;
        break;
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    case AV_PIX_FMT_YVYU422:
        *yuv2packed1 = yuv2yvyu422_1_c;
        *yuv2packed2 = yuv2yvyu422_2_c;
        *yuv2packedX = yuv2yvyu422_X_c;
        break;
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    case AV_PIX_FMT_UYVY422:
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        *yuv2packed1 = yuv2uyvy422_1_c;
        *yuv2packed2 = yuv2uyvy422_2_c;
        *yuv2packedX = yuv2uyvy422_X_c;
        break;
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    case AV_PIX_FMT_YA8:
        *yuv2packed1 = yuv2ya8_1_c;
        *yuv2packed2 = yuv2ya8_2_c;
        *yuv2packedX = yuv2ya8_X_c;
        break;
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    case AV_PIX_FMT_YA16LE:
        *yuv2packed1 = yuv2ya16le_1_c;
        *yuv2packed2 = yuv2ya16le_2_c;
        *yuv2packedX = yuv2ya16le_X_c;
        break;
    case AV_PIX_FMT_YA16BE:
        *yuv2packed1 = yuv2ya16be_1_c;
        *yuv2packed2 = yuv2ya16be_2_c;
        *yuv2packedX = yuv2ya16be_X_c;
        break;
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    case AV_PIX_FMT_AYUV64LE:
        *yuv2packedX = yuv2ayuv64le_X_c;
        break;
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    }
}