libavcodec/dsputil.c

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/*
 * DSP utils
 * Copyright (c) 2000, 2001 Fabrice Bellard
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
 *
 * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "dsputil.h"
#include "simple_idct.h"
#include "faandct.h"
#include "faanidct.h"
#include "mathops.h"
#include "mpegvideo.h"
#include "config.h"
#include "vorbis.h"
#include "diracdsp.h"

uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
uint32_t ff_squareTbl[512] = {0, };

#define pixeltmp int16_t
#define BIT_DEPTH 9
#include "dsputil_template.c"
#undef BIT_DEPTH

#define BIT_DEPTH 10
#include "dsputil_template.c"
#undef BIT_DEPTH

#undef pixeltmp
#define pixeltmp int32_t
#define BIT_DEPTH 12
#include "dsputil_template.c"
#undef BIT_DEPTH

#define BIT_DEPTH 14
#include "dsputil_template.c"
#undef BIT_DEPTH

#undef pixeltmp
#define pixeltmp int16_t
#define BIT_DEPTH 8
#include "dsputil_template.c"
#undef pixeltmp

// 0x7f7f7f7f or 0x7f7f7f7f7f7f7f7f or whatever, depending on the cpu's native arithmetic size
#define pb_7f (~0UL/255 * 0x7f)
#define pb_80 (~0UL/255 * 0x80)

const uint8_t ff_zigzag_direct[64] = {
    0,   1,  8, 16,  9,  2,  3, 10,
    17, 24, 32, 25, 18, 11,  4,  5,
    12, 19, 26, 33, 40, 48, 41, 34,
    27, 20, 13,  6,  7, 14, 21, 28,
    35, 42, 49, 56, 57, 50, 43, 36,
    29, 22, 15, 23, 30, 37, 44, 51,
    58, 59, 52, 45, 38, 31, 39, 46,
    53, 60, 61, 54, 47, 55, 62, 63
};

/* Specific zigzag scan for 248 idct. NOTE that unlike the
   specification, we interleave the fields */
const uint8_t ff_zigzag248_direct[64] = {
     0,  8,  1,  9, 16, 24,  2, 10,
    17, 25, 32, 40, 48, 56, 33, 41,
    18, 26,  3, 11,  4, 12, 19, 27,
    34, 42, 49, 57, 50, 58, 35, 43,
    20, 28,  5, 13,  6, 14, 21, 29,
    36, 44, 51, 59, 52, 60, 37, 45,
    22, 30,  7, 15, 23, 31, 38, 46,
    53, 61, 54, 62, 39, 47, 55, 63,
};

/* not permutated inverse zigzag_direct + 1 for MMX quantizer */
DECLARE_ALIGNED(16, uint16_t, ff_inv_zigzag_direct16)[64];

const uint8_t ff_alternate_horizontal_scan[64] = {
    0,  1,   2,  3,  8,  9, 16, 17,
    10, 11,  4,  5,  6,  7, 15, 14,
    13, 12, 19, 18, 24, 25, 32, 33,
    26, 27, 20, 21, 22, 23, 28, 29,
    30, 31, 34, 35, 40, 41, 48, 49,
    42, 43, 36, 37, 38, 39, 44, 45,
    46, 47, 50, 51, 56, 57, 58, 59,
    52, 53, 54, 55, 60, 61, 62, 63,
};

const uint8_t ff_alternate_vertical_scan[64] = {
    0,  8,  16, 24,  1,  9,  2, 10,
    17, 25, 32, 40, 48, 56, 57, 49,
    41, 33, 26, 18,  3, 11,  4, 12,
    19, 27, 34, 42, 50, 58, 35, 43,
    51, 59, 20, 28,  5, 13,  6, 14,
    21, 29, 36, 44, 52, 60, 37, 45,
    53, 61, 22, 30,  7, 15, 23, 31,
    38, 46, 54, 62, 39, 47, 55, 63,
};

/* Input permutation for the simple_idct_mmx */
static const uint8_t simple_mmx_permutation[64]={
        0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
        0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
        0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
        0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
        0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
        0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
        0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
        0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
};

static const uint8_t idct_sse2_row_perm[8] = {0, 4, 1, 5, 2, 6, 3, 7};

void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
    int i;
    int end;

    st->scantable= src_scantable;

    for(i=0; i<64; i++){
        int j;
        j = src_scantable[i];
        st->permutated[i] = permutation[j];
    }

    end=-1;
    for(i=0; i<64; i++){
        int j;
        j = st->permutated[i];
        if(j>end) end=j;
        st->raster_end[i]= end;
    }
}

void ff_init_scantable_permutation(uint8_t *idct_permutation,
                                   int idct_permutation_type)
{
    int i;

    switch(idct_permutation_type){
    case FF_NO_IDCT_PERM:
        for(i=0; i<64; i++)
            idct_permutation[i]= i;
        break;
    case FF_LIBMPEG2_IDCT_PERM:
        for(i=0; i<64; i++)
            idct_permutation[i]= (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
        break;
    case FF_SIMPLE_IDCT_PERM:
        for(i=0; i<64; i++)
            idct_permutation[i]= simple_mmx_permutation[i];
        break;
    case FF_TRANSPOSE_IDCT_PERM:
        for(i=0; i<64; i++)
            idct_permutation[i]= ((i&7)<<3) | (i>>3);
        break;
    case FF_PARTTRANS_IDCT_PERM:
        for(i=0; i<64; i++)
            idct_permutation[i]= (i&0x24) | ((i&3)<<3) | ((i>>3)&3);
        break;
    case FF_SSE2_IDCT_PERM:
        for(i=0; i<64; i++)
            idct_permutation[i]= (i&0x38) | idct_sse2_row_perm[i&7];
        break;
    default:
        av_log(NULL, AV_LOG_ERROR, "Internal error, IDCT permutation not set\n");
    }
}

static int pix_sum_c(uint8_t * pix, int line_size)
{
    int s, i, j;

    s = 0;
    for (i = 0; i < 16; i++) {
        for (j = 0; j < 16; j += 8) {
            s += pix[0];
            s += pix[1];
            s += pix[2];
            s += pix[3];
            s += pix[4];
            s += pix[5];
            s += pix[6];
            s += pix[7];
            pix += 8;
        }
        pix += line_size - 16;
    }
    return s;
}

static int pix_norm1_c(uint8_t * pix, int line_size)
{
    int s, i, j;
    uint32_t *sq = ff_squareTbl + 256;

    s = 0;
    for (i = 0; i < 16; i++) {
        for (j = 0; j < 16; j += 8) {
#if 0
            s += sq[pix[0]];
            s += sq[pix[1]];
            s += sq[pix[2]];
            s += sq[pix[3]];
            s += sq[pix[4]];
            s += sq[pix[5]];
            s += sq[pix[6]];
            s += sq[pix[7]];
#else
#if HAVE_FAST_64BIT
            register uint64_t x=*(uint64_t*)pix;
            s += sq[x&0xff];
            s += sq[(x>>8)&0xff];
            s += sq[(x>>16)&0xff];
            s += sq[(x>>24)&0xff];
            s += sq[(x>>32)&0xff];
            s += sq[(x>>40)&0xff];
            s += sq[(x>>48)&0xff];
            s += sq[(x>>56)&0xff];
#else
            register uint32_t x=*(uint32_t*)pix;
            s += sq[x&0xff];
            s += sq[(x>>8)&0xff];
            s += sq[(x>>16)&0xff];
            s += sq[(x>>24)&0xff];
            x=*(uint32_t*)(pix+4);
            s += sq[x&0xff];
            s += sq[(x>>8)&0xff];
            s += sq[(x>>16)&0xff];
            s += sq[(x>>24)&0xff];
#endif
#endif
            pix += 8;
        }
        pix += line_size - 16;
    }
    return s;
}

static void bswap_buf(uint32_t *dst, const uint32_t *src, int w){
    int i;

    for(i=0; i+8<=w; i+=8){
        dst[i+0]= av_bswap32(src[i+0]);
        dst[i+1]= av_bswap32(src[i+1]);
        dst[i+2]= av_bswap32(src[i+2]);
        dst[i+3]= av_bswap32(src[i+3]);
        dst[i+4]= av_bswap32(src[i+4]);
        dst[i+5]= av_bswap32(src[i+5]);
        dst[i+6]= av_bswap32(src[i+6]);
        dst[i+7]= av_bswap32(src[i+7]);
    }
    for(;i<w; i++){
        dst[i+0]= av_bswap32(src[i+0]);
    }
}

static void bswap16_buf(uint16_t *dst, const uint16_t *src, int len)
{
    while (len--)
        *dst++ = av_bswap16(*src++);
}

static int sse4_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h)
{
    int s, i;
    uint32_t *sq = ff_squareTbl + 256;

    s = 0;
    for (i = 0; i < h; i++) {
        s += sq[pix1[0] - pix2[0]];
        s += sq[pix1[1] - pix2[1]];
        s += sq[pix1[2] - pix2[2]];
        s += sq[pix1[3] - pix2[3]];
        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static int sse8_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h)
{
    int s, i;
    uint32_t *sq = ff_squareTbl + 256;

    s = 0;
    for (i = 0; i < h; i++) {
        s += sq[pix1[0] - pix2[0]];
        s += sq[pix1[1] - pix2[1]];
        s += sq[pix1[2] - pix2[2]];
        s += sq[pix1[3] - pix2[3]];
        s += sq[pix1[4] - pix2[4]];
        s += sq[pix1[5] - pix2[5]];
        s += sq[pix1[6] - pix2[6]];
        s += sq[pix1[7] - pix2[7]];
        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static int sse16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;
    uint32_t *sq = ff_squareTbl + 256;

    s = 0;
    for (i = 0; i < h; i++) {
        s += sq[pix1[ 0] - pix2[ 0]];
        s += sq[pix1[ 1] - pix2[ 1]];
        s += sq[pix1[ 2] - pix2[ 2]];
        s += sq[pix1[ 3] - pix2[ 3]];
        s += sq[pix1[ 4] - pix2[ 4]];
        s += sq[pix1[ 5] - pix2[ 5]];
        s += sq[pix1[ 6] - pix2[ 6]];
        s += sq[pix1[ 7] - pix2[ 7]];
        s += sq[pix1[ 8] - pix2[ 8]];
        s += sq[pix1[ 9] - pix2[ 9]];
        s += sq[pix1[10] - pix2[10]];
        s += sq[pix1[11] - pix2[11]];
        s += sq[pix1[12] - pix2[12]];
        s += sq[pix1[13] - pix2[13]];
        s += sq[pix1[14] - pix2[14]];
        s += sq[pix1[15] - pix2[15]];

        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static void diff_pixels_c(DCTELEM *av_restrict block, const uint8_t *s1,
                          const uint8_t *s2, int stride){
    int i;

    /* read the pixels */
    for(i=0;i<8;i++) {
        block[0] = s1[0] - s2[0];
        block[1] = s1[1] - s2[1];
        block[2] = s1[2] - s2[2];
        block[3] = s1[3] - s2[3];
        block[4] = s1[4] - s2[4];
        block[5] = s1[5] - s2[5];
        block[6] = s1[6] - s2[6];
        block[7] = s1[7] - s2[7];
        s1 += stride;
        s2 += stride;
        block += 8;
    }
}


static void put_pixels_clamped_c(const DCTELEM *block, uint8_t *av_restrict pixels,
                                 int line_size)
{
    int i;

    /* read the pixels */
    for(i=0;i<8;i++) {
        pixels[0] = av_clip_uint8(block[0]);
        pixels[1] = av_clip_uint8(block[1]);
        pixels[2] = av_clip_uint8(block[2]);
        pixels[3] = av_clip_uint8(block[3]);
        pixels[4] = av_clip_uint8(block[4]);
        pixels[5] = av_clip_uint8(block[5]);
        pixels[6] = av_clip_uint8(block[6]);
        pixels[7] = av_clip_uint8(block[7]);

        pixels += line_size;
        block += 8;
    }
}

static void put_pixels_clamped4_c(const DCTELEM *block, uint8_t *av_restrict pixels,
                                 int line_size)
{
    int i;

    /* read the pixels */
    for(i=0;i<4;i++) {
        pixels[0] = av_clip_uint8(block[0]);
        pixels[1] = av_clip_uint8(block[1]);
        pixels[2] = av_clip_uint8(block[2]);
        pixels[3] = av_clip_uint8(block[3]);

        pixels += line_size;
        block += 8;
    }
}

static void put_pixels_clamped2_c(const DCTELEM *block, uint8_t *av_restrict pixels,
                                 int line_size)
{
    int i;

    /* read the pixels */
    for(i=0;i<2;i++) {
        pixels[0] = av_clip_uint8(block[0]);
        pixels[1] = av_clip_uint8(block[1]);

        pixels += line_size;
        block += 8;
    }
}

static void put_signed_pixels_clamped_c(const DCTELEM *block,
                                        uint8_t *av_restrict pixels,
                                        int line_size)
{
    int i, j;

    for (i = 0; i < 8; i++) {
        for (j = 0; j < 8; j++) {
            if (*block < -128)
                *pixels = 0;
            else if (*block > 127)
                *pixels = 255;
            else
                *pixels = (uint8_t)(*block + 128);
            block++;
            pixels++;
        }
        pixels += (line_size - 8);
    }
}

static void add_pixels_clamped_c(const DCTELEM *block, uint8_t *av_restrict pixels,
                                 int line_size)
{
    int i;

    /* read the pixels */
    for(i=0;i<8;i++) {
        pixels[0] = av_clip_uint8(pixels[0] + block[0]);
        pixels[1] = av_clip_uint8(pixels[1] + block[1]);
        pixels[2] = av_clip_uint8(pixels[2] + block[2]);
        pixels[3] = av_clip_uint8(pixels[3] + block[3]);
        pixels[4] = av_clip_uint8(pixels[4] + block[4]);
        pixels[5] = av_clip_uint8(pixels[5] + block[5]);
        pixels[6] = av_clip_uint8(pixels[6] + block[6]);
        pixels[7] = av_clip_uint8(pixels[7] + block[7]);
        pixels += line_size;
        block += 8;
    }
}

static void add_pixels_clamped4_c(const DCTELEM *block, uint8_t *av_restrict pixels,
                          int line_size)
{
    int i;

    /* read the pixels */
    for(i=0;i<4;i++) {
        pixels[0] = av_clip_uint8(pixels[0] + block[0]);
        pixels[1] = av_clip_uint8(pixels[1] + block[1]);
        pixels[2] = av_clip_uint8(pixels[2] + block[2]);
        pixels[3] = av_clip_uint8(pixels[3] + block[3]);
        pixels += line_size;
        block += 8;
    }
}

static void add_pixels_clamped2_c(const DCTELEM *block, uint8_t *av_restrict pixels,
                          int line_size)
{
    int i;

    /* read the pixels */
    for(i=0;i<2;i++) {
        pixels[0] = av_clip_uint8(pixels[0] + block[0]);
        pixels[1] = av_clip_uint8(pixels[1] + block[1]);
        pixels += line_size;
        block += 8;
    }
}

static int sum_abs_dctelem_c(DCTELEM *block)
{
    int sum=0, i;
    for(i=0; i<64; i++)
        sum+= FFABS(block[i]);
    return sum;
}

static void fill_block16_c(uint8_t *block, uint8_t value, int line_size, int h)
{
    int i;

    for (i = 0; i < h; i++) {
        memset(block, value, 16);
        block += line_size;
    }
}

static void fill_block8_c(uint8_t *block, uint8_t value, int line_size, int h)
{
    int i;

    for (i = 0; i < h; i++) {
        memset(block, value, 8);
        block += line_size;
    }
}

#define avg2(a,b) ((a+b+1)>>1)
#define avg4(a,b,c,d) ((a+b+c+d+2)>>2)

static void gmc1_c(uint8_t *dst, uint8_t *src, int stride, int h, int x16, int y16, int rounder)
{
    const int A=(16-x16)*(16-y16);
    const int B=(   x16)*(16-y16);
    const int C=(16-x16)*(   y16);
    const int D=(   x16)*(   y16);
    int i;

    for(i=0; i<h; i++)
    {
        dst[0]= (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + rounder)>>8;
        dst[1]= (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + rounder)>>8;
        dst[2]= (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + rounder)>>8;
        dst[3]= (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + rounder)>>8;
        dst[4]= (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + rounder)>>8;
        dst[5]= (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + rounder)>>8;
        dst[6]= (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + rounder)>>8;
        dst[7]= (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + rounder)>>8;
        dst+= stride;
        src+= stride;
    }
}

void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
                  int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height)
{
    int y, vx, vy;
    const int s= 1<<shift;

    width--;
    height--;

    for(y=0; y<h; y++){
        int x;

        vx= ox;
        vy= oy;
        for(x=0; x<8; x++){ //XXX FIXME optimize
            int src_x, src_y, frac_x, frac_y, index;

            src_x= vx>>16;
            src_y= vy>>16;
            frac_x= src_x&(s-1);
            frac_y= src_y&(s-1);
            src_x>>=shift;
            src_y>>=shift;

            if((unsigned)src_x < width){
                if((unsigned)src_y < height){
                    index= src_x + src_y*stride;
                    dst[y*stride + x]= (  (  src[index         ]*(s-frac_x)
                                           + src[index       +1]*   frac_x )*(s-frac_y)
                                        + (  src[index+stride  ]*(s-frac_x)
                                           + src[index+stride+1]*   frac_x )*   frac_y
                                        + r)>>(shift*2);
                }else{
                    index= src_x + av_clip(src_y, 0, height)*stride;
                    dst[y*stride + x]= ( (  src[index         ]*(s-frac_x)
                                          + src[index       +1]*   frac_x )*s
                                        + r)>>(shift*2);
                }
            }else{
                if((unsigned)src_y < height){
                    index= av_clip(src_x, 0, width) + src_y*stride;
                    dst[y*stride + x]= (  (  src[index         ]*(s-frac_y)
                                           + src[index+stride  ]*   frac_y )*s
                                        + r)>>(shift*2);
                }else{
                    index= av_clip(src_x, 0, width) + av_clip(src_y, 0, height)*stride;
                    dst[y*stride + x]=    src[index         ];
                }
            }

            vx+= dxx;
            vy+= dyx;
        }
        ox += dxy;
        oy += dyy;
    }
}

static inline void put_tpel_pixels_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    switch(width){
    case 2: put_pixels2_8_c (dst, src, stride, height); break;
    case 4: put_pixels4_8_c (dst, src, stride, height); break;
    case 8: put_pixels8_8_c (dst, src, stride, height); break;
    case 16:put_pixels16_8_c(dst, src, stride, height); break;
    }
}

static inline void put_tpel_pixels_mc10_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (683*(2*src[j] + src[j+1] + 1)) >> 11;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc20_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (683*(src[j] + 2*src[j+1] + 1)) >> 11;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc01_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (683*(2*src[j] + src[j+stride] + 1)) >> 11;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc11_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (2731*(4*src[j] + 3*src[j+1] + 3*src[j+stride] + 2*src[j+stride+1] + 6)) >> 15;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc12_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (2731*(3*src[j] + 2*src[j+1] + 4*src[j+stride] + 3*src[j+stride+1] + 6)) >> 15;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc02_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (683*(src[j] + 2*src[j+stride] + 1)) >> 11;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc21_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (2731*(3*src[j] + 4*src[j+1] + 2*src[j+stride] + 3*src[j+stride+1] + 6)) >> 15;
      }
      src += stride;
      dst += stride;
    }
}

static inline void put_tpel_pixels_mc22_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (2731*(2*src[j] + 3*src[j+1] + 3*src[j+stride] + 4*src[j+stride+1] + 6)) >> 15;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    switch(width){
    case 2: avg_pixels2_8_c (dst, src, stride, height); break;
    case 4: avg_pixels4_8_c (dst, src, stride, height); break;
    case 8: avg_pixels8_8_c (dst, src, stride, height); break;
    case 16:avg_pixels16_8_c(dst, src, stride, height); break;
    }
}

static inline void avg_tpel_pixels_mc10_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((683*(2*src[j] + src[j+1] + 1)) >> 11) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc20_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((683*(src[j] + 2*src[j+1] + 1)) >> 11) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc01_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((683*(2*src[j] + src[j+stride] + 1)) >> 11) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc11_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((2731*(4*src[j] + 3*src[j+1] + 3*src[j+stride] + 2*src[j+stride+1] + 6)) >> 15) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc12_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((2731*(3*src[j] + 2*src[j+1] + 4*src[j+stride] + 3*src[j+stride+1] + 6)) >> 15) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc02_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((683*(src[j] + 2*src[j+stride] + 1)) >> 11) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc21_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((2731*(3*src[j] + 4*src[j+1] + 2*src[j+stride] + 3*src[j+stride+1] + 6)) >> 15) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

static inline void avg_tpel_pixels_mc22_c(uint8_t *dst, const uint8_t *src, int stride, int width, int height){
    int i,j;
    for (i=0; i < height; i++) {
      for (j=0; j < width; j++) {
        dst[j] = (dst[j] + ((2731*(2*src[j] + 3*src[j+1] + 3*src[j+stride] + 4*src[j+stride+1] + 6)) >> 15) + 1) >> 1;
      }
      src += stride;
      dst += stride;
    }
}

#define QPEL_MC(r, OPNAME, RND, OP) \
static void OPNAME ## mpeg4_qpel8_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h){\
    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
    int i;\
    for(i=0; i<h; i++)\
    {\
        OP(dst[0], (src[0]+src[1])*20 - (src[0]+src[2])*6 + (src[1]+src[3])*3 - (src[2]+src[4]));\
        OP(dst[1], (src[1]+src[2])*20 - (src[0]+src[3])*6 + (src[0]+src[4])*3 - (src[1]+src[5]));\
        OP(dst[2], (src[2]+src[3])*20 - (src[1]+src[4])*6 + (src[0]+src[5])*3 - (src[0]+src[6]));\
        OP(dst[3], (src[3]+src[4])*20 - (src[2]+src[5])*6 + (src[1]+src[6])*3 - (src[0]+src[7]));\
        OP(dst[4], (src[4]+src[5])*20 - (src[3]+src[6])*6 + (src[2]+src[7])*3 - (src[1]+src[8]));\
        OP(dst[5], (src[5]+src[6])*20 - (src[4]+src[7])*6 + (src[3]+src[8])*3 - (src[2]+src[8]));\
        OP(dst[6], (src[6]+src[7])*20 - (src[5]+src[8])*6 + (src[4]+src[8])*3 - (src[3]+src[7]));\
        OP(dst[7], (src[7]+src[8])*20 - (src[6]+src[8])*6 + (src[5]+src[7])*3 - (src[4]+src[6]));\
        dst+=dstStride;\
        src+=srcStride;\
    }\
}\
\
static void OPNAME ## mpeg4_qpel8_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    const int w=8;\
    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
    int i;\
    for(i=0; i<w; i++)\
    {\
        const int src0= src[0*srcStride];\
        const int src1= src[1*srcStride];\
        const int src2= src[2*srcStride];\
        const int src3= src[3*srcStride];\
        const int src4= src[4*srcStride];\
        const int src5= src[5*srcStride];\
        const int src6= src[6*srcStride];\
        const int src7= src[7*srcStride];\
        const int src8= src[8*srcStride];\
        OP(dst[0*dstStride], (src0+src1)*20 - (src0+src2)*6 + (src1+src3)*3 - (src2+src4));\
        OP(dst[1*dstStride], (src1+src2)*20 - (src0+src3)*6 + (src0+src4)*3 - (src1+src5));\
        OP(dst[2*dstStride], (src2+src3)*20 - (src1+src4)*6 + (src0+src5)*3 - (src0+src6));\
        OP(dst[3*dstStride], (src3+src4)*20 - (src2+src5)*6 + (src1+src6)*3 - (src0+src7));\
        OP(dst[4*dstStride], (src4+src5)*20 - (src3+src6)*6 + (src2+src7)*3 - (src1+src8));\
        OP(dst[5*dstStride], (src5+src6)*20 - (src4+src7)*6 + (src3+src8)*3 - (src2+src8));\
        OP(dst[6*dstStride], (src6+src7)*20 - (src5+src8)*6 + (src4+src8)*3 - (src3+src7));\
        OP(dst[7*dstStride], (src7+src8)*20 - (src6+src8)*6 + (src5+src7)*3 - (src4+src6));\
        dst++;\
        src++;\
    }\
}\
\
static void OPNAME ## mpeg4_qpel16_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h){\
    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
    int i;\
    \
    for(i=0; i<h; i++)\
    {\
        OP(dst[ 0], (src[ 0]+src[ 1])*20 - (src[ 0]+src[ 2])*6 + (src[ 1]+src[ 3])*3 - (src[ 2]+src[ 4]));\
        OP(dst[ 1], (src[ 1]+src[ 2])*20 - (src[ 0]+src[ 3])*6 + (src[ 0]+src[ 4])*3 - (src[ 1]+src[ 5]));\
        OP(dst[ 2], (src[ 2]+src[ 3])*20 - (src[ 1]+src[ 4])*6 + (src[ 0]+src[ 5])*3 - (src[ 0]+src[ 6]));\
        OP(dst[ 3], (src[ 3]+src[ 4])*20 - (src[ 2]+src[ 5])*6 + (src[ 1]+src[ 6])*3 - (src[ 0]+src[ 7]));\
        OP(dst[ 4], (src[ 4]+src[ 5])*20 - (src[ 3]+src[ 6])*6 + (src[ 2]+src[ 7])*3 - (src[ 1]+src[ 8]));\
        OP(dst[ 5], (src[ 5]+src[ 6])*20 - (src[ 4]+src[ 7])*6 + (src[ 3]+src[ 8])*3 - (src[ 2]+src[ 9]));\
        OP(dst[ 6], (src[ 6]+src[ 7])*20 - (src[ 5]+src[ 8])*6 + (src[ 4]+src[ 9])*3 - (src[ 3]+src[10]));\
        OP(dst[ 7], (src[ 7]+src[ 8])*20 - (src[ 6]+src[ 9])*6 + (src[ 5]+src[10])*3 - (src[ 4]+src[11]));\
        OP(dst[ 8], (src[ 8]+src[ 9])*20 - (src[ 7]+src[10])*6 + (src[ 6]+src[11])*3 - (src[ 5]+src[12]));\
        OP(dst[ 9], (src[ 9]+src[10])*20 - (src[ 8]+src[11])*6 + (src[ 7]+src[12])*3 - (src[ 6]+src[13]));\
        OP(dst[10], (src[10]+src[11])*20 - (src[ 9]+src[12])*6 + (src[ 8]+src[13])*3 - (src[ 7]+src[14]));\
        OP(dst[11], (src[11]+src[12])*20 - (src[10]+src[13])*6 + (src[ 9]+src[14])*3 - (src[ 8]+src[15]));\
        OP(dst[12], (src[12]+src[13])*20 - (src[11]+src[14])*6 + (src[10]+src[15])*3 - (src[ 9]+src[16]));\
        OP(dst[13], (src[13]+src[14])*20 - (src[12]+src[15])*6 + (src[11]+src[16])*3 - (src[10]+src[16]));\
        OP(dst[14], (src[14]+src[15])*20 - (src[13]+src[16])*6 + (src[12]+src[16])*3 - (src[11]+src[15]));\
        OP(dst[15], (src[15]+src[16])*20 - (src[14]+src[16])*6 + (src[13]+src[15])*3 - (src[12]+src[14]));\
        dst+=dstStride;\
        src+=srcStride;\
    }\
}\
\
static void OPNAME ## mpeg4_qpel16_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
    int i;\
    const int w=16;\
    for(i=0; i<w; i++)\
    {\
        const int src0= src[0*srcStride];\
        const int src1= src[1*srcStride];\
        const int src2= src[2*srcStride];\
        const int src3= src[3*srcStride];\
        const int src4= src[4*srcStride];\
        const int src5= src[5*srcStride];\
        const int src6= src[6*srcStride];\
        const int src7= src[7*srcStride];\
        const int src8= src[8*srcStride];\
        const int src9= src[9*srcStride];\
        const int src10= src[10*srcStride];\
        const int src11= src[11*srcStride];\
        const int src12= src[12*srcStride];\
        const int src13= src[13*srcStride];\
        const int src14= src[14*srcStride];\
        const int src15= src[15*srcStride];\
        const int src16= src[16*srcStride];\
        OP(dst[ 0*dstStride], (src0 +src1 )*20 - (src0 +src2 )*6 + (src1 +src3 )*3 - (src2 +src4 ));\
        OP(dst[ 1*dstStride], (src1 +src2 )*20 - (src0 +src3 )*6 + (src0 +src4 )*3 - (src1 +src5 ));\
        OP(dst[ 2*dstStride], (src2 +src3 )*20 - (src1 +src4 )*6 + (src0 +src5 )*3 - (src0 +src6 ));\
        OP(dst[ 3*dstStride], (src3 +src4 )*20 - (src2 +src5 )*6 + (src1 +src6 )*3 - (src0 +src7 ));\
        OP(dst[ 4*dstStride], (src4 +src5 )*20 - (src3 +src6 )*6 + (src2 +src7 )*3 - (src1 +src8 ));\
        OP(dst[ 5*dstStride], (src5 +src6 )*20 - (src4 +src7 )*6 + (src3 +src8 )*3 - (src2 +src9 ));\
        OP(dst[ 6*dstStride], (src6 +src7 )*20 - (src5 +src8 )*6 + (src4 +src9 )*3 - (src3 +src10));\
        OP(dst[ 7*dstStride], (src7 +src8 )*20 - (src6 +src9 )*6 + (src5 +src10)*3 - (src4 +src11));\
        OP(dst[ 8*dstStride], (src8 +src9 )*20 - (src7 +src10)*6 + (src6 +src11)*3 - (src5 +src12));\
        OP(dst[ 9*dstStride], (src9 +src10)*20 - (src8 +src11)*6 + (src7 +src12)*3 - (src6 +src13));\
        OP(dst[10*dstStride], (src10+src11)*20 - (src9 +src12)*6 + (src8 +src13)*3 - (src7 +src14));\
        OP(dst[11*dstStride], (src11+src12)*20 - (src10+src13)*6 + (src9 +src14)*3 - (src8 +src15));\
        OP(dst[12*dstStride], (src12+src13)*20 - (src11+src14)*6 + (src10+src15)*3 - (src9 +src16));\
        OP(dst[13*dstStride], (src13+src14)*20 - (src12+src15)*6 + (src11+src16)*3 - (src10+src16));\
        OP(dst[14*dstStride], (src14+src15)*20 - (src13+src16)*6 + (src12+src16)*3 - (src11+src15));\
        OP(dst[15*dstStride], (src15+src16)*20 - (src14+src16)*6 + (src13+src15)*3 - (src12+src14));\
        dst++;\
        src++;\
    }\
}\
\
static void OPNAME ## qpel8_mc10_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t half[64];\
    put ## RND ## mpeg4_qpel8_h_lowpass(half, src, 8, stride, 8);\
    OPNAME ## pixels8_l2_8(dst, src, half, stride, stride, 8, 8);\
}\
\
static void OPNAME ## qpel8_mc20_c(uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## mpeg4_qpel8_h_lowpass(dst, src, stride, stride, 8);\
}\
\
static void OPNAME ## qpel8_mc30_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t half[64];\
    put ## RND ## mpeg4_qpel8_h_lowpass(half, src, 8, stride, 8);\
    OPNAME ## pixels8_l2_8(dst, src+1, half, stride, stride, 8, 8);\
}\
\
static void OPNAME ## qpel8_mc01_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t half[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(half, full, 8, 16);\
    OPNAME ## pixels8_l2_8(dst, full, half, stride, 16, 8, 8);\
}\
\
static void OPNAME ## qpel8_mc02_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    copy_block9(full, src, 16, stride, 9);\
    OPNAME ## mpeg4_qpel8_v_lowpass(dst, full, stride, 16);\
}\
\
static void OPNAME ## qpel8_mc03_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t half[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(half, full, 8, 16);\
    OPNAME ## pixels8_l2_8(dst, full+16, half, stride, 16, 8, 8);\
}\
void ff_ ## OPNAME ## qpel8_mc11_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfV[64];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full, 8, 16);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l4_8(dst, full, halfH, halfV, halfHV, stride, 16, 8, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc11_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## pixels8_l2_8(halfH, halfH, full, 8, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfH, halfHV, stride, 8, 8, 8);\
}\
void ff_ ## OPNAME ## qpel8_mc31_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfV[64];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full+1, 8, 16);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l4_8(dst, full+1, halfH, halfV, halfHV, stride, 16, 8, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc31_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## pixels8_l2_8(halfH, halfH, full+1, 8, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfH, halfHV, stride, 8, 8, 8);\
}\
void ff_ ## OPNAME ## qpel8_mc13_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfV[64];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full, 8, 16);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l4_8(dst, full+16, halfH+8, halfV, halfHV, stride, 16, 8, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc13_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## pixels8_l2_8(halfH, halfH, full, 8, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfH+8, halfHV, stride, 8, 8, 8);\
}\
void ff_ ## OPNAME ## qpel8_mc33_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfV[64];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full  , 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full+1, 8, 16);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l4_8(dst, full+17, halfH+8, halfV, halfHV, stride, 16, 8, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## pixels8_l2_8(halfH, halfH, full+1, 8, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfH+8, halfHV, stride, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc21_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t halfH[72];\
    uint8_t halfHV[64];\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, src, 8, stride, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfH, halfHV, stride, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc23_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t halfH[72];\
    uint8_t halfHV[64];\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, src, 8, stride, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfH+8, halfHV, stride, 8, 8, 8);\
}\
void ff_ ## OPNAME ## qpel8_mc12_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfV[64];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full, 8, 16);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfV, halfHV, stride, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc12_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## pixels8_l2_8(halfH, halfH, full, 8, 8, 16, 9);\
    OPNAME ## mpeg4_qpel8_v_lowpass(dst, halfH, stride, 8);\
}\
void ff_ ## OPNAME ## qpel8_mc32_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    uint8_t halfV[64];\
    uint8_t halfHV[64];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full+1, 8, 16);\
    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);\
    OPNAME ## pixels8_l2_8(dst, halfV, halfHV, stride, 8, 8, 8);\
}\
static void OPNAME ## qpel8_mc32_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[16*9];\
    uint8_t halfH[72];\
    copy_block9(full, src, 16, stride, 9);\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);\
    put ## RND ## pixels8_l2_8(halfH, halfH, full+1, 8, 8, 16, 9);\
    OPNAME ## mpeg4_qpel8_v_lowpass(dst, halfH, stride, 8);\
}\
static void OPNAME ## qpel8_mc22_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t halfH[72];\
    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, src, 8, stride, 9);\
    OPNAME ## mpeg4_qpel8_v_lowpass(dst, halfH, stride, 8);\
}\
\
static void OPNAME ## qpel16_mc10_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t half[256];\
    put ## RND ## mpeg4_qpel16_h_lowpass(half, src, 16, stride, 16);\
    OPNAME ## pixels16_l2_8(dst, src, half, stride, stride, 16, 16);\
}\
\
static void OPNAME ## qpel16_mc20_c(uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## mpeg4_qpel16_h_lowpass(dst, src, stride, stride, 16);\
}\
\
static void OPNAME ## qpel16_mc30_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t half[256];\
    put ## RND ## mpeg4_qpel16_h_lowpass(half, src, 16, stride, 16);\
    OPNAME ## pixels16_l2_8(dst, src+1, half, stride, stride, 16, 16);\
}\
\
static void OPNAME ## qpel16_mc01_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t half[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(half, full, 16, 24);\
    OPNAME ## pixels16_l2_8(dst, full, half, stride, 24, 16, 16);\
}\
\
static void OPNAME ## qpel16_mc02_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    copy_block17(full, src, 24, stride, 17);\
    OPNAME ## mpeg4_qpel16_v_lowpass(dst, full, stride, 24);\
}\
\
static void OPNAME ## qpel16_mc03_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t half[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(half, full, 16, 24);\
    OPNAME ## pixels16_l2_8(dst, full+24, half, stride, 24, 16, 16);\
}\
void ff_ ## OPNAME ## qpel16_mc11_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfV[256];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full, 16, 24);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l4_8(dst, full, halfH, halfV, halfHV, stride, 24, 16, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc11_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## pixels16_l2_8(halfH, halfH, full, 16, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfH, halfHV, stride, 16, 16, 16);\
}\
void ff_ ## OPNAME ## qpel16_mc31_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfV[256];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full+1, 16, 24);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l4_8(dst, full+1, halfH, halfV, halfHV, stride, 24, 16, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc31_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## pixels16_l2_8(halfH, halfH, full+1, 16, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfH, halfHV, stride, 16, 16, 16);\
}\
void ff_ ## OPNAME ## qpel16_mc13_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfV[256];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full, 16, 24);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l4_8(dst, full+24, halfH+16, halfV, halfHV, stride, 24, 16, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc13_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## pixels16_l2_8(halfH, halfH, full, 16, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfH+16, halfHV, stride, 16, 16, 16);\
}\
void ff_ ## OPNAME ## qpel16_mc33_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfV[256];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full  , 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full+1, 16, 24);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l4_8(dst, full+25, halfH+16, halfV, halfHV, stride, 24, 16, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc33_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## pixels16_l2_8(halfH, halfH, full+1, 16, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfH+16, halfHV, stride, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc21_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t halfH[272];\
    uint8_t halfHV[256];\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, src, 16, stride, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfH, halfHV, stride, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc23_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t halfH[272];\
    uint8_t halfHV[256];\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, src, 16, stride, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfH+16, halfHV, stride, 16, 16, 16);\
}\
void ff_ ## OPNAME ## qpel16_mc12_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfV[256];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full, 16, 24);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfV, halfHV, stride, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc12_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## pixels16_l2_8(halfH, halfH, full, 16, 16, 24, 17);\
    OPNAME ## mpeg4_qpel16_v_lowpass(dst, halfH, stride, 16);\
}\
void ff_ ## OPNAME ## qpel16_mc32_old_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    uint8_t halfV[256];\
    uint8_t halfHV[256];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full+1, 16, 24);\
    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);\
    OPNAME ## pixels16_l2_8(dst, halfV, halfHV, stride, 16, 16, 16);\
}\
static void OPNAME ## qpel16_mc32_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t full[24*17];\
    uint8_t halfH[272];\
    copy_block17(full, src, 24, stride, 17);\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);\
    put ## RND ## pixels16_l2_8(halfH, halfH, full+1, 16, 16, 24, 17);\
    OPNAME ## mpeg4_qpel16_v_lowpass(dst, halfH, stride, 16);\
}\
static void OPNAME ## qpel16_mc22_c(uint8_t *dst, uint8_t *src, int stride){\
    uint8_t halfH[272];\
    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, src, 16, stride, 17);\
    OPNAME ## mpeg4_qpel16_v_lowpass(dst, halfH, stride, 16);\
}

#define op_avg(a, b) a = (((a)+cm[((b) + 16)>>5]+1)>>1)
#define op_avg_no_rnd(a, b) a = (((a)+cm[((b) + 15)>>5])>>1)
#define op_put(a, b) a = cm[((b) + 16)>>5]
#define op_put_no_rnd(a, b) a = cm[((b) + 15)>>5]

QPEL_MC(0, put_       , _       , op_put)
QPEL_MC(1, put_no_rnd_, _no_rnd_, op_put_no_rnd)
QPEL_MC(0, avg_       , _       , op_avg)
//QPEL_MC(1, avg_no_rnd , _       , op_avg)
#undef op_avg
#undef op_avg_no_rnd
#undef op_put
#undef op_put_no_rnd

#define put_qpel8_mc00_c  ff_put_pixels8x8_c
#define avg_qpel8_mc00_c  ff_avg_pixels8x8_c
#define put_qpel16_mc00_c ff_put_pixels16x16_c
#define avg_qpel16_mc00_c ff_avg_pixels16x16_c
#define put_no_rnd_qpel8_mc00_c  ff_put_pixels8x8_c
#define put_no_rnd_qpel16_mc00_c ff_put_pixels16x16_8_c

static void wmv2_mspel8_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h){
    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
    int i;

    for(i=0; i<h; i++){
        dst[0]= cm[(9*(src[0] + src[1]) - (src[-1] + src[2]) + 8)>>4];
        dst[1]= cm[(9*(src[1] + src[2]) - (src[ 0] + src[3]) + 8)>>4];
        dst[2]= cm[(9*(src[2] + src[3]) - (src[ 1] + src[4]) + 8)>>4];
        dst[3]= cm[(9*(src[3] + src[4]) - (src[ 2] + src[5]) + 8)>>4];
        dst[4]= cm[(9*(src[4] + src[5]) - (src[ 3] + src[6]) + 8)>>4];
        dst[5]= cm[(9*(src[5] + src[6]) - (src[ 4] + src[7]) + 8)>>4];
        dst[6]= cm[(9*(src[6] + src[7]) - (src[ 5] + src[8]) + 8)>>4];
        dst[7]= cm[(9*(src[7] + src[8]) - (src[ 6] + src[9]) + 8)>>4];
        dst+=dstStride;
        src+=srcStride;
    }
}

#if CONFIG_RV40_DECODER
void ff_put_rv40_qpel16_mc33_c(uint8_t *dst, uint8_t *src, int stride){
    put_pixels16_xy2_8_c(dst, src, stride, 16);
}
void ff_avg_rv40_qpel16_mc33_c(uint8_t *dst, uint8_t *src, int stride){
    avg_pixels16_xy2_8_c(dst, src, stride, 16);
}
void ff_put_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride){
    put_pixels8_xy2_8_c(dst, src, stride, 8);
}
void ff_avg_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride){
    avg_pixels8_xy2_8_c(dst, src, stride, 8);
}
#endif /* CONFIG_RV40_DECODER */

#if CONFIG_DIRAC_DECODER
#define DIRAC_MC(OPNAME)\
void ff_ ## OPNAME ## _dirac_pixels8_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
     OPNAME ## _pixels8_8_c(dst, src[0], stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels16_8_c(dst, src[0], stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels16_8_c(dst   , src[0]   , stride, h);\
    OPNAME ## _pixels16_8_c(dst+16, src[0]+16, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels8_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels8_l2_8(dst, src[0], src[1], stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels16_l2_8(dst, src[0], src[1], stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels16_l2_8(dst   , src[0]   , src[1]   , stride, stride, stride, h);\
    OPNAME ## _pixels16_l2_8(dst+16, src[0]+16, src[1]+16, stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels8_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels8_l4_8(dst, src[0], src[1], src[2], src[3], stride, stride, stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels16_l4_8(dst, src[0], src[1], src[2], src[3], stride, stride, stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
    OPNAME ## _pixels16_l4_8(dst   , src[0]   , src[1]   , src[2]   , src[3]   , stride, stride, stride, stride, stride, h);\
    OPNAME ## _pixels16_l4_8(dst+16, src[0]+16, src[1]+16, src[2]+16, src[3]+16, stride, stride, stride, stride, stride, h);\
}
DIRAC_MC(put)
DIRAC_MC(avg)
#endif

static void wmv2_mspel8_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int w){
    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
    int i;

    for(i=0; i<w; i++){
        const int src_1= src[ -srcStride];
        const int src0 = src[0          ];
        const int src1 = src[  srcStride];
        const int src2 = src[2*srcStride];
        const int src3 = src[3*srcStride];
        const int src4 = src[4*srcStride];
        const int src5 = src[5*srcStride];
        const int src6 = src[6*srcStride];
        const int src7 = src[7*srcStride];
        const int src8 = src[8*srcStride];
        const int src9 = src[9*srcStride];
        dst[0*dstStride]= cm[(9*(src0 + src1) - (src_1 + src2) + 8)>>4];
        dst[1*dstStride]= cm[(9*(src1 + src2) - (src0  + src3) + 8)>>4];
        dst[2*dstStride]= cm[(9*(src2 + src3) - (src1  + src4) + 8)>>4];
        dst[3*dstStride]= cm[(9*(src3 + src4) - (src2  + src5) + 8)>>4];
        dst[4*dstStride]= cm[(9*(src4 + src5) - (src3  + src6) + 8)>>4];
        dst[5*dstStride]= cm[(9*(src5 + src6) - (src4  + src7) + 8)>>4];
        dst[6*dstStride]= cm[(9*(src6 + src7) - (src5  + src8) + 8)>>4];
        dst[7*dstStride]= cm[(9*(src7 + src8) - (src6  + src9) + 8)>>4];
        src++;
        dst++;
    }
}

static void put_mspel8_mc10_c(uint8_t *dst, uint8_t *src, int stride){
    uint8_t half[64];
    wmv2_mspel8_h_lowpass(half, src, 8, stride, 8);
    put_pixels8_l2_8(dst, src, half, stride, stride, 8, 8);
}

static void put_mspel8_mc20_c(uint8_t *dst, uint8_t *src, int stride){
    wmv2_mspel8_h_lowpass(dst, src, stride, stride, 8);
}

static void put_mspel8_mc30_c(uint8_t *dst, uint8_t *src, int stride){
    uint8_t half[64];
    wmv2_mspel8_h_lowpass(half, src, 8, stride, 8);
    put_pixels8_l2_8(dst, src+1, half, stride, stride, 8, 8);
}

static void put_mspel8_mc02_c(uint8_t *dst, uint8_t *src, int stride){
    wmv2_mspel8_v_lowpass(dst, src, stride, stride, 8);
}

static void put_mspel8_mc12_c(uint8_t *dst, uint8_t *src, int stride){
    uint8_t halfH[88];
    uint8_t halfV[64];
    uint8_t halfHV[64];
    wmv2_mspel8_h_lowpass(halfH, src-stride, 8, stride, 11);
    wmv2_mspel8_v_lowpass(halfV, src, 8, stride, 8);
    wmv2_mspel8_v_lowpass(halfHV, halfH+8, 8, 8, 8);
    put_pixels8_l2_8(dst, halfV, halfHV, stride, 8, 8, 8);
}
static void put_mspel8_mc32_c(uint8_t *dst, uint8_t *src, int stride){
    uint8_t halfH[88];
    uint8_t halfV[64];
    uint8_t halfHV[64];
    wmv2_mspel8_h_lowpass(halfH, src-stride, 8, stride, 11);
    wmv2_mspel8_v_lowpass(halfV, src+1, 8, stride, 8);
    wmv2_mspel8_v_lowpass(halfHV, halfH+8, 8, 8, 8);
    put_pixels8_l2_8(dst, halfV, halfHV, stride, 8, 8, 8);
}
static void put_mspel8_mc22_c(uint8_t *dst, uint8_t *src, int stride){
    uint8_t halfH[88];
    wmv2_mspel8_h_lowpass(halfH, src-stride, 8, stride, 11);
    wmv2_mspel8_v_lowpass(dst, halfH+8, stride, 8, 8);
}

static void h263_v_loop_filter_c(uint8_t *src, int stride, int qscale){
    if(CONFIG_H263_DECODER || CONFIG_H263_ENCODER) {
    int x;
    const int strength= ff_h263_loop_filter_strength[qscale];

    for(x=0; x<8; x++){
        int d1, d2, ad1;
        int p0= src[x-2*stride];
        int p1= src[x-1*stride];
        int p2= src[x+0*stride];
        int p3= src[x+1*stride];
        int d = (p0 - p3 + 4*(p2 - p1)) / 8;

        if     (d<-2*strength) d1= 0;
        else if(d<-  strength) d1=-2*strength - d;
        else if(d<   strength) d1= d;
        else if(d< 2*strength) d1= 2*strength - d;
        else                   d1= 0;

        p1 += d1;
        p2 -= d1;
        if(p1&256) p1= ~(p1>>31);
        if(p2&256) p2= ~(p2>>31);

        src[x-1*stride] = p1;
        src[x+0*stride] = p2;

        ad1= FFABS(d1)>>1;

        d2= av_clip((p0-p3)/4, -ad1, ad1);

        src[x-2*stride] = p0 - d2;
        src[x+  stride] = p3 + d2;
    }
    }
}

static void h263_h_loop_filter_c(uint8_t *src, int stride, int qscale){
    if(CONFIG_H263_DECODER || CONFIG_H263_ENCODER) {
    int y;
    const int strength= ff_h263_loop_filter_strength[qscale];

    for(y=0; y<8; y++){
        int d1, d2, ad1;
        int p0= src[y*stride-2];
        int p1= src[y*stride-1];
        int p2= src[y*stride+0];
        int p3= src[y*stride+1];
        int d = (p0 - p3 + 4*(p2 - p1)) / 8;

        if     (d<-2*strength) d1= 0;
        else if(d<-  strength) d1=-2*strength - d;
        else if(d<   strength) d1= d;
        else if(d< 2*strength) d1= 2*strength - d;
        else                   d1= 0;

        p1 += d1;
        p2 -= d1;
        if(p1&256) p1= ~(p1>>31);
        if(p2&256) p2= ~(p2>>31);

        src[y*stride-1] = p1;
        src[y*stride+0] = p2;

        ad1= FFABS(d1)>>1;

        d2= av_clip((p0-p3)/4, -ad1, ad1);

        src[y*stride-2] = p0 - d2;
        src[y*stride+1] = p3 + d2;
    }
    }
}

static void h261_loop_filter_c(uint8_t *src, int stride){
    int x,y,xy,yz;
    int temp[64];

    for(x=0; x<8; x++){
        temp[x      ] = 4*src[x           ];
        temp[x + 7*8] = 4*src[x + 7*stride];
    }
    for(y=1; y<7; y++){
        for(x=0; x<8; x++){
            xy = y * stride + x;
            yz = y * 8 + x;
            temp[yz] = src[xy - stride] + 2*src[xy] + src[xy + stride];
        }
    }

    for(y=0; y<8; y++){
        src[  y*stride] = (temp[  y*8] + 2)>>2;
        src[7+y*stride] = (temp[7+y*8] + 2)>>2;
        for(x=1; x<7; x++){
            xy = y * stride + x;
            yz = y * 8 + x;
            src[xy] = (temp[yz-1] + 2*temp[yz] + temp[yz+1] + 8)>>4;
        }
    }
}

static inline int pix_abs16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - pix2[0]);
        s += abs(pix1[1] - pix2[1]);
        s += abs(pix1[2] - pix2[2]);
        s += abs(pix1[3] - pix2[3]);
        s += abs(pix1[4] - pix2[4]);
        s += abs(pix1[5] - pix2[5]);
        s += abs(pix1[6] - pix2[6]);
        s += abs(pix1[7] - pix2[7]);
        s += abs(pix1[8] - pix2[8]);
        s += abs(pix1[9] - pix2[9]);
        s += abs(pix1[10] - pix2[10]);
        s += abs(pix1[11] - pix2[11]);
        s += abs(pix1[12] - pix2[12]);
        s += abs(pix1[13] - pix2[13]);
        s += abs(pix1[14] - pix2[14]);
        s += abs(pix1[15] - pix2[15]);
        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static int pix_abs16_x2_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
        s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
        s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
        s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
        s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
        s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
        s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
        s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
        s += abs(pix1[8] - avg2(pix2[8], pix2[9]));
        s += abs(pix1[9] - avg2(pix2[9], pix2[10]));
        s += abs(pix1[10] - avg2(pix2[10], pix2[11]));
        s += abs(pix1[11] - avg2(pix2[11], pix2[12]));
        s += abs(pix1[12] - avg2(pix2[12], pix2[13]));
        s += abs(pix1[13] - avg2(pix2[13], pix2[14]));
        s += abs(pix1[14] - avg2(pix2[14], pix2[15]));
        s += abs(pix1[15] - avg2(pix2[15], pix2[16]));
        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static int pix_abs16_y2_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;
    uint8_t *pix3 = pix2 + line_size;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
        s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
        s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
        s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
        s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
        s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
        s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
        s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
        s += abs(pix1[8] - avg2(pix2[8], pix3[8]));
        s += abs(pix1[9] - avg2(pix2[9], pix3[9]));
        s += abs(pix1[10] - avg2(pix2[10], pix3[10]));
        s += abs(pix1[11] - avg2(pix2[11], pix3[11]));
        s += abs(pix1[12] - avg2(pix2[12], pix3[12]));
        s += abs(pix1[13] - avg2(pix2[13], pix3[13]));
        s += abs(pix1[14] - avg2(pix2[14], pix3[14]));
        s += abs(pix1[15] - avg2(pix2[15], pix3[15]));
        pix1 += line_size;
        pix2 += line_size;
        pix3 += line_size;
    }
    return s;
}

static int pix_abs16_xy2_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;
    uint8_t *pix3 = pix2 + line_size;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
        s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
        s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
        s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
        s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
        s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
        s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
        s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
        s += abs(pix1[8] - avg4(pix2[8], pix2[9], pix3[8], pix3[9]));
        s += abs(pix1[9] - avg4(pix2[9], pix2[10], pix3[9], pix3[10]));
        s += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));
        s += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));
        s += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));
        s += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));
        s += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));
        s += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));
        pix1 += line_size;
        pix2 += line_size;
        pix3 += line_size;
    }
    return s;
}

static inline int pix_abs8_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - pix2[0]);
        s += abs(pix1[1] - pix2[1]);
        s += abs(pix1[2] - pix2[2]);
        s += abs(pix1[3] - pix2[3]);
        s += abs(pix1[4] - pix2[4]);
        s += abs(pix1[5] - pix2[5]);
        s += abs(pix1[6] - pix2[6]);
        s += abs(pix1[7] - pix2[7]);
        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static int pix_abs8_x2_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
        s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
        s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
        s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
        s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
        s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
        s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
        s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
        pix1 += line_size;
        pix2 += line_size;
    }
    return s;
}

static int pix_abs8_y2_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;
    uint8_t *pix3 = pix2 + line_size;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
        s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
        s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
        s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
        s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
        s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
        s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
        s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
        pix1 += line_size;
        pix2 += line_size;
        pix3 += line_size;
    }
    return s;
}

static int pix_abs8_xy2_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
    int s, i;
    uint8_t *pix3 = pix2 + line_size;

    s = 0;
    for(i=0;i<h;i++) {
        s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
        s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
        s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
        s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
        s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
        s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
        s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
        s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
        pix1 += line_size;
        pix2 += line_size;
        pix3 += line_size;
    }
    return s;
}

static int nsse16_c(void *v, uint8_t *s1, uint8_t *s2, int stride, int h){
    MpegEncContext *c = v;
    int score1=0;
    int score2=0;
    int x,y;

    for(y=0; y<h; y++){
        for(x=0; x<16; x++){
            score1+= (s1[x  ] - s2[x ])*(s1[x  ] - s2[x ]);
        }
        if(y+1<h){
            for(x=0; x<15; x++){
                score2+= FFABS(  s1[x  ] - s1[x  +stride]
                             - s1[x+1] + s1[x+1+stride])
                        -FFABS(  s2[x  ] - s2[x  +stride]
                             - s2[x+1] + s2[x+1+stride]);
            }
        }
        s1+= stride;
        s2+= stride;
    }

    if(c) return score1 + FFABS(score2)*c->avctx->nsse_weight;
    else  return score1 + FFABS(score2)*8;
}

static int nsse8_c(void *v, uint8_t *s1, uint8_t *s2, int stride, int h){
    MpegEncContext *c = v;
    int score1=0;
    int score2=0;
    int x,y;

    for(y=0; y<h; y++){
        for(x=0; x<8; x++){
            score1+= (s1[x  ] - s2[x ])*(s1[x  ] - s2[x ]);
        }
        if(y+1<h){
            for(x=0; x<7; x++){
                score2+= FFABS(  s1[x  ] - s1[x  +stride]
                             - s1[x+1] + s1[x+1+stride])
                        -FFABS(  s2[x  ] - s2[x  +stride]
                             - s2[x+1] + s2[x+1+stride]);
            }
        }
        s1+= stride;
        s2+= stride;
    }

    if(c) return score1 + FFABS(score2)*c->avctx->nsse_weight;
    else  return score1 + FFABS(score2)*8;
}

static int try_8x8basis_c(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale){
    int i;
    unsigned int sum=0;

    for(i=0; i<8*8; i++){
        int b= rem[i] + ((basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT));
        int w= weight[i];
        b>>= RECON_SHIFT;
        assert(-512<b && b<512);

        sum += (w*b)*(w*b)>>4;
    }
    return sum>>2;
}

static void add_8x8basis_c(int16_t rem[64], int16_t basis[64], int scale){
    int i;

    for(i=0; i<8*8; i++){
        rem[i] += (basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT);
    }
}

void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last)
{
    int i;
    DCTELEM temp[64];

    if(last<=0) return;
    //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations

    for(i=0; i<=last; i++){
        const int j= scantable[i];
        temp[j]= block[j];
        block[j]=0;
    }

    for(i=0; i<=last; i++){
        const int j= scantable[i];
        const int perm_j= permutation[j];
        block[perm_j]= temp[j];
    }
}

static int zero_cmp(void *s, uint8_t *a, uint8_t *b, int stride, int h){
    return 0;
}

void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type){
    int i;

    memset(cmp, 0, sizeof(void*)*6);

    for(i=0; i<6; i++){
        switch(type&0xFF){
        case FF_CMP_SAD:
            cmp[i]= c->sad[i];
            break;
        case FF_CMP_SATD:
            cmp[i]= c->hadamard8_diff[i];
            break;
        case FF_CMP_SSE:
            cmp[i]= c->sse[i];
            break;
        case FF_CMP_DCT:
            cmp[i]= c->dct_sad[i];
            break;
        case FF_CMP_DCT264:
            cmp[i]= c->dct264_sad[i];
            break;
        case FF_CMP_DCTMAX:
            cmp[i]= c->dct_max[i];
            break;
        case FF_CMP_PSNR:
            cmp[i]= c->quant_psnr[i];
            break;
        case FF_CMP_BIT:
            cmp[i]= c->bit[i];
            break;
        case FF_CMP_RD:
            cmp[i]= c->rd[i];
            break;
        case FF_CMP_VSAD:
            cmp[i]= c->vsad[i];
            break;
        case FF_CMP_VSSE:
            cmp[i]= c->vsse[i];
            break;
        case FF_CMP_ZERO:
            cmp[i]= zero_cmp;
            break;
        case FF_CMP_NSSE:
            cmp[i]= c->nsse[i];
            break;
#if CONFIG_DWT
        case FF_CMP_W53:
            cmp[i]= c->w53[i];
            break;
        case FF_CMP_W97:
            cmp[i]= c->w97[i];
            break;
#endif
        default:
            av_log(NULL, AV_LOG_ERROR,"internal error in cmp function selection\n");
        }
    }
}

static void add_bytes_c(uint8_t *dst, uint8_t *src, int w){
    long i;
    for(i=0; i<=w-sizeof(long); i+=sizeof(long)){
        long a = *(long*)(src+i);
        long b = *(long*)(dst+i);
        *(long*)(dst+i) = ((a&pb_7f) + (b&pb_7f)) ^ ((a^b)&pb_80);
    }
    for(; i<w; i++)
        dst[i+0] += src[i+0];
}

static void diff_bytes_c(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w){
    long i;
#if !HAVE_FAST_UNALIGNED
    if((long)src2 & (sizeof(long)-1)){
        for(i=0; i+7<w; i+=8){
            dst[i+0] = src1[i+0]-src2[i+0];
            dst[i+1] = src1[i+1]-src2[i+1];
            dst[i+2] = src1[i+2]-src2[i+2];
            dst[i+3] = src1[i+3]-src2[i+3];
            dst[i+4] = src1[i+4]-src2[i+4];
            dst[i+5] = src1[i+5]-src2[i+5];
            dst[i+6] = src1[i+6]-src2[i+6];
            dst[i+7] = src1[i+7]-src2[i+7];
        }
    }else
#endif
    for(i=0; i<=w-sizeof(long); i+=sizeof(long)){
        long a = *(long*)(src1+i);
        long b = *(long*)(src2+i);
        *(long*)(dst+i) = ((a|pb_80) - (b&pb_7f)) ^ ((a^b^pb_80)&pb_80);
    }
    for(; i<w; i++)
        dst[i+0] = src1[i+0]-src2[i+0];
}

static void add_hfyu_median_prediction_c(uint8_t *dst, const uint8_t *src1, const uint8_t *diff, int w, int *left, int *left_top){
    int i;
    uint8_t l, lt;

    l= *left;
    lt= *left_top;

    for(i=0; i<w; i++){
        l= mid_pred(l, src1[i], (l + src1[i] - lt)&0xFF) + diff[i];
        lt= src1[i];
        dst[i]= l;
    }

    *left= l;
    *left_top= lt;
}

static void sub_hfyu_median_prediction_c(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w, int *left, int *left_top){
    int i;
    uint8_t l, lt;

    l= *left;
    lt= *left_top;

    for(i=0; i<w; i++){
        const int pred= mid_pred(l, src1[i], (l + src1[i] - lt)&0xFF);
        lt= src1[i];
        l= src2[i];
        dst[i]= l - pred;
    }

    *left= l;
    *left_top= lt;
}

static int add_hfyu_left_prediction_c(uint8_t *dst, const uint8_t *src, int w, int acc){
    int i;

    for(i=0; i<w-1; i++){
        acc+= src[i];
        dst[i]= acc;
        i++;
        acc+= src[i];
        dst[i]= acc;
    }

    for(; i<w; i++){
        acc+= src[i];
        dst[i]= acc;
    }

    return acc;
}

#if HAVE_BIGENDIAN
#define B 3
#define G 2
#define R 1
#define A 0
#else
#define B 0
#define G 1
#define R 2
#define A 3
#endif
static void add_hfyu_left_prediction_bgr32_c(uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue, int *alpha){
    int i;
    int r,g,b,a;
    r= *red;
    g= *green;
    b= *blue;
    a= *alpha;

    for(i=0; i<w; i++){
        b+= src[4*i+B];
        g+= src[4*i+G];
        r+= src[4*i+R];
        a+= src[4*i+A];

        dst[4*i+B]= b;
        dst[4*i+G]= g;
        dst[4*i+R]= r;
        dst[4*i+A]= a;
    }

    *red= r;
    *green= g;
    *blue= b;
    *alpha= a;
}
#undef B
#undef G
#undef R
#undef A

#define BUTTERFLY2(o1,o2,i1,i2) \
o1= (i1)+(i2);\
o2= (i1)-(i2);

#define BUTTERFLY1(x,y) \
{\
    int a,b;\
    a= x;\
    b= y;\
    x= a+b;\
    y= a-b;\
}

#define BUTTERFLYA(x,y) (FFABS((x)+(y)) + FFABS((x)-(y)))

static int hadamard8_diff8x8_c(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
    int i;
    int temp[64];
    int sum=0;

    av_assert2(h==8);

    for(i=0; i<8; i++){
        //FIXME try pointer walks
        BUTTERFLY2(temp[8*i+0], temp[8*i+1], src[stride*i+0]-dst[stride*i+0],src[stride*i+1]-dst[stride*i+1]);
        BUTTERFLY2(temp[8*i+2], temp[8*i+3], src[stride*i+2]-dst[stride*i+2],src[stride*i+3]-dst[stride*i+3]);
        BUTTERFLY2(temp[8*i+4], temp[8*i+5], src[stride*i+4]-dst[stride*i+4],src[stride*i+5]-dst[stride*i+5]);
        BUTTERFLY2(temp[8*i+6], temp[8*i+7], src[stride*i+6]-dst[stride*i+6],src[stride*i+7]-dst[stride*i+7]);

        BUTTERFLY1(temp[8*i+0], temp[8*i+2]);
        BUTTERFLY1(temp[8*i+1], temp[8*i+3]);
        BUTTERFLY1(temp[8*i+4], temp[8*i+6]);
        BUTTERFLY1(temp[8*i+5], temp[8*i+7]);

        BUTTERFLY1(temp[8*i+0], temp[8*i+4]);
        BUTTERFLY1(temp[8*i+1], temp[8*i+5]);
        BUTTERFLY1(temp[8*i+2], temp[8*i+6]);
        BUTTERFLY1(temp[8*i+3], temp[8*i+7]);
    }

    for(i=0; i<8; i++){
        BUTTERFLY1(temp[8*0+i], temp[8*1+i]);
        BUTTERFLY1(temp[8*2+i], temp[8*3+i]);
        BUTTERFLY1(temp[8*4+i], temp[8*5+i]);
        BUTTERFLY1(temp[8*6+i], temp[8*7+i]);

        BUTTERFLY1(temp[8*0+i], temp[8*2+i]);
        BUTTERFLY1(temp[8*1+i], temp[8*3+i]);
        BUTTERFLY1(temp[8*4+i], temp[8*6+i]);
        BUTTERFLY1(temp[8*5+i], temp[8*7+i]);

        sum +=
             BUTTERFLYA(temp[8*0+i], temp[8*4+i])
            +BUTTERFLYA(temp[8*1+i], temp[8*5+i])
            +BUTTERFLYA(temp[8*2+i], temp[8*6+i])
            +BUTTERFLYA(temp[8*3+i], temp[8*7+i]);
    }
    return sum;
}

static int hadamard8_intra8x8_c(/*MpegEncContext*/ void *s, uint8_t *src, uint8_t *dummy, int stride, int h){
    int i;
    int temp[64];
    int sum=0;

    av_assert2(h==8);

    for(i=0; i<8; i++){
        //FIXME try pointer walks
        BUTTERFLY2(temp[8*i+0], temp[8*i+1], src[stride*i+0],src[stride*i+1]);
        BUTTERFLY2(temp[8*i+2], temp[8*i+3], src[stride*i+2],src[stride*i+3]);
        BUTTERFLY2(temp[8*i+4], temp[8*i+5], src[stride*i+4],src[stride*i+5]);
        BUTTERFLY2(temp[8*i+6], temp[8*i+7], src[stride*i+6],src[stride*i+7]);

        BUTTERFLY1(temp[8*i+0], temp[8*i+2]);
        BUTTERFLY1(temp[8*i+1], temp[8*i+3]);
        BUTTERFLY1(temp[8*i+4], temp[8*i+6]);
        BUTTERFLY1(temp[8*i+5], temp[8*i+7]);

        BUTTERFLY1(temp[8*i+0], temp[8*i+4]);
        BUTTERFLY1(temp[8*i+1], temp[8*i+5]);
        BUTTERFLY1(temp[8*i+2], temp[8*i+6]);
        BUTTERFLY1(temp[8*i+3], temp[8*i+7]);
    }

    for(i=0; i<8; i++){
        BUTTERFLY1(temp[8*0+i], temp[8*1+i]);
        BUTTERFLY1(temp[8*2+i], temp[8*3+i]);
        BUTTERFLY1(temp[8*4+i], temp[8*5+i]);
        BUTTERFLY1(temp[8*6+i], temp[8*7+i]);

        BUTTERFLY1(temp[8*0+i], temp[8*2+i]);
        BUTTERFLY1(temp[8*1+i], temp[8*3+i]);
        BUTTERFLY1(temp[8*4+i], temp[8*6+i]);
        BUTTERFLY1(temp[8*5+i], temp[8*7+i]);

        sum +=
             BUTTERFLYA(temp[8*0+i], temp[8*4+i])
            +BUTTERFLYA(temp[8*1+i], temp[8*5+i])
            +BUTTERFLYA(temp[8*2+i], temp[8*6+i])
            +BUTTERFLYA(temp[8*3+i], temp[8*7+i]);
    }

    sum -= FFABS(temp[8*0] + temp[8*4]); // -mean

    return sum;
}

static int dct_sad8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
    MpegEncContext * const s= (MpegEncContext *)c;
    LOCAL_ALIGNED_16(DCTELEM, temp, [64]);

    av_assert2(h==8);

    s->dsp.diff_pixels(temp, src1, src2, stride);
    s->dsp.fdct(temp);
    return s->dsp.sum_abs_dctelem(temp);
}

#if CONFIG_GPL
#define DCT8_1D {\
    const int s07 = SRC(0) + SRC(7);\
    const int s16 = SRC(1) + SRC(6);\
    const int s25 = SRC(2) + SRC(5);\
    const int s34 = SRC(3) + SRC(4);\
    const int a0 = s07 + s34;\
    const int a1 = s16 + s25;\
    const int a2 = s07 - s34;\
    const int a3 = s16 - s25;\
    const int d07 = SRC(0) - SRC(7);\
    const int d16 = SRC(1) - SRC(6);\
    const int d25 = SRC(2) - SRC(5);\
    const int d34 = SRC(3) - SRC(4);\
    const int a4 = d16 + d25 + (d07 + (d07>>1));\
    const int a5 = d07 - d34 - (d25 + (d25>>1));\
    const int a6 = d07 + d34 - (d16 + (d16>>1));\
    const int a7 = d16 - d25 + (d34 + (d34>>1));\
    DST(0,  a0 + a1     ) ;\
    DST(1,  a4 + (a7>>2)) ;\
    DST(2,  a2 + (a3>>1)) ;\
    DST(3,  a5 + (a6>>2)) ;\
    DST(4,  a0 - a1     ) ;\
    DST(5,  a6 - (a5>>2)) ;\
    DST(6, (a2>>1) - a3 ) ;\
    DST(7, (a4>>2) - a7 ) ;\
}

static int dct264_sad8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
    MpegEncContext * const s= (MpegEncContext *)c;
    DCTELEM dct[8][8];
    int i;
    int sum=0;

    s->dsp.diff_pixels(dct[0], src1, src2, stride);

#define SRC(x) dct[i][x]
#define DST(x,v) dct[i][x]= v
    for( i = 0; i < 8; i++ )
        DCT8_1D
#undef SRC
#undef DST

#define SRC(x) dct[x][i]
#define DST(x,v) sum += FFABS(v)
    for( i = 0; i < 8; i++ )
        DCT8_1D
#undef SRC
#undef DST
    return sum;
}
#endif

static int dct_max8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
    MpegEncContext * const s= (MpegEncContext *)c;
    LOCAL_ALIGNED_16(DCTELEM, temp, [64]);
    int sum=0, i;

    av_assert2(h==8);

    s->dsp.diff_pixels(temp, src1, src2, stride);
    s->dsp.fdct(temp);

    for(i=0; i<64; i++)
        sum= FFMAX(sum, FFABS(temp[i]));

    return sum;
}

static int quant_psnr8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
    MpegEncContext * const s= (MpegEncContext *)c;
    LOCAL_ALIGNED_16(DCTELEM, temp, [64*2]);
    DCTELEM * const bak = temp+64;
    int sum=0, i;

    av_assert2(h==8);
    s->mb_intra=0;

    s->dsp.diff_pixels(temp, src1, src2, stride);

    memcpy(bak, temp, 64*sizeof(DCTELEM));

    s->block_last_index[0/*FIXME*/]= s->fast_dct_quantize(s, temp, 0/*FIXME*/, s->qscale, &i);
    s->dct_unquantize_inter(s, temp, 0, s->qscale);
    ff_simple_idct_8(temp); //FIXME

    for(i=0; i<64; i++)
        sum+= (temp[i]-bak[i])*(temp[i]-bak[i]);

    return sum;
}

static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
    MpegEncContext * const s= (MpegEncContext *)c;
    const uint8_t *scantable= s->intra_scantable.permutated;
    LOCAL_ALIGNED_16(DCTELEM, temp, [64]);
    LOCAL_ALIGNED_16(uint8_t, lsrc1, [64]);
    LOCAL_ALIGNED_16(uint8_t, lsrc2, [64]);
    int i, last, run, bits, level, distortion, start_i;
    const int esc_length= s->ac_esc_length;
    uint8_t * length;
    uint8_t * last_length;

    av_assert2(h==8);

    copy_block8(lsrc1, src1, 8, stride, 8);
    copy_block8(lsrc2, src2, 8, stride, 8);

    s->dsp.diff_pixels(temp, lsrc1, lsrc2, 8);

    s->block_last_index[0/*FIXME*/]= last= s->fast_dct_quantize(s, temp, 0/*FIXME*/, s->qscale, &i);

    bits=0;

    if (s->mb_intra) {
        start_i = 1;
        length     = s->intra_ac_vlc_length;
        last_length= s->intra_ac_vlc_last_length;
        bits+= s->luma_dc_vlc_length[temp[0] + 256]; //FIXME chroma
    } else {
        start_i = 0;
        length     = s->inter_ac_vlc_length;
        last_length= s->inter_ac_vlc_last_length;
    }

    if(last>=start_i){
        run=0;
        for(i=start_i; i<last; i++){
            int j= scantable[i];
            level= temp[j];

            if(level){
                level+=64;
                if((level&(~127)) == 0){
                    bits+= length[UNI_AC_ENC_INDEX(run, level)];
                }else
                    bits+= esc_length;
                run=0;
            }else
                run++;
        }
        i= scantable[last];

        level= temp[i] + 64;

        assert(level - 64);

        if((level&(~127)) == 0){
            bits+= last_length[UNI_AC_ENC_INDEX(run, level)];
        }else
            bits+= esc_length;

    }

    if(last>=0){
        if(s->mb_intra)
            s->dct_unquantize_intra(s, temp, 0, s->qscale);
        else
            s->dct_unquantize_inter(s, temp, 0, s->qscale);
    }

    s->dsp.idct_add(lsrc2, 8, temp);

    distortion= s->dsp.sse[1](NULL, lsrc2, lsrc1, 8, 8);

    return distortion + ((bits*s->qscale*s->qscale*109 + 64)>>7);
}

static int bit8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
    MpegEncContext * const s= (MpegEncContext *)c;
    const uint8_t *scantable= s->intra_scantable.permutated;
    LOCAL_ALIGNED_16(DCTELEM, temp, [64]);
    int i, last, run, bits, level, start_i;
    const int esc_length= s->ac_esc_length;
    uint8_t * length;
    uint8_t * last_length;

    av_assert2(h==8);

    s->dsp.diff_pixels(temp, src1, src2, stride);

    s->block_last_index[0/*FIXME*/]= last= s->fast_dct_quantize(s, temp, 0/*FIXME*/, s->qscale, &i);

    bits=0;

    if (s->mb_intra) {
        start_i = 1;
        length     = s->intra_ac_vlc_length;
        last_length= s->intra_ac_vlc_last_length;
        bits+= s->luma_dc_vlc_length[temp[0] + 256]; //FIXME chroma
    } else {
        start_i = 0;
        length     = s->inter_ac_vlc_length;
        last_length= s->inter_ac_vlc_last_length;
    }

    if(last>=start_i){
        run=0;
        for(i=start_i; i<last; i++){
            int j= scantable[i];
            level= temp[j];

            if(level){
                level+=64;
                if((level&(~127)) == 0){
                    bits+= length[UNI_AC_ENC_INDEX(run, level)];
                }else
                    bits+= esc_length;
                run=0;
            }else
                run++;
        }
        i= scantable[last];

        level= temp[i] + 64;

        assert(level - 64);

        if((level&(~127)) == 0){
            bits+= last_length[UNI_AC_ENC_INDEX(run, level)];
        }else
            bits+= esc_length;
    }

    return bits;
}

#define VSAD_INTRA(size) \
static int vsad_intra##size##_c(/*MpegEncContext*/ void *c, uint8_t *s, uint8_t *dummy, int stride, int h){ \
    int score=0;                                                                                            \
    int x,y;                                                                                                \
                                                                                                            \
    for(y=1; y<h; y++){                                                                                     \
        for(x=0; x<size; x+=4){                                                                             \
            score+= FFABS(s[x  ] - s[x  +stride]) + FFABS(s[x+1] - s[x+1+stride])                           \
                   +FFABS(s[x+2] - s[x+2+stride]) + FFABS(s[x+3] - s[x+3+stride]);                          \
        }                                                                                                   \
        s+= stride;                                                                                         \
    }                                                                                                       \
                                                                                                            \
    return score;                                                                                           \
}
VSAD_INTRA(8)
VSAD_INTRA(16)

static int vsad16_c(/*MpegEncContext*/ void *c, uint8_t *s1, uint8_t *s2, int stride, int h){
    int score=0;
    int x,y;

    for(y=1; y<h; y++){
        for(x=0; x<16; x++){
            score+= FFABS(s1[x  ] - s2[x ] - s1[x  +stride] + s2[x +stride]);
        }
        s1+= stride;
        s2+= stride;
    }

    return score;
}

#define SQ(a) ((a)*(a))
#define VSSE_INTRA(size) \
static int vsse_intra##size##_c(/*MpegEncContext*/ void *c, uint8_t *s, uint8_t *dummy, int stride, int h){ \
    int score=0;                                                                                            \
    int x,y;                                                                                                \
                                                                                                            \
    for(y=1; y<h; y++){                                                                                     \
        for(x=0; x<size; x+=4){                                                                               \
            score+= SQ(s[x  ] - s[x  +stride]) + SQ(s[x+1] - s[x+1+stride])                                 \
                   +SQ(s[x+2] - s[x+2+stride]) + SQ(s[x+3] - s[x+3+stride]);                                \
        }                                                                                                   \
        s+= stride;                                                                                         \
    }                                                                                                       \
                                                                                                            \
    return score;                                                                                           \
}
VSSE_INTRA(8)
VSSE_INTRA(16)

static int vsse16_c(/*MpegEncContext*/ void *c, uint8_t *s1, uint8_t *s2, int stride, int h){
    int score=0;
    int x,y;

    for(y=1; y<h; y++){
        for(x=0; x<16; x++){
            score+= SQ(s1[x  ] - s2[x ] - s1[x  +stride] + s2[x +stride]);
        }
        s1+= stride;
        s2+= stride;
    }

    return score;
}

static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2,
                               int size){
    int score=0;
    int i;
    for(i=0; i<size; i++)
        score += (pix1[i]-pix2[i])*(pix1[i]-pix2[i]);
    return score;
}

WRAPPER8_16_SQ(hadamard8_diff8x8_c, hadamard8_diff16_c)
WRAPPER8_16_SQ(hadamard8_intra8x8_c, hadamard8_intra16_c)
WRAPPER8_16_SQ(dct_sad8x8_c, dct_sad16_c)
#if CONFIG_GPL
WRAPPER8_16_SQ(dct264_sad8x8_c, dct264_sad16_c)
#endif
WRAPPER8_16_SQ(dct_max8x8_c, dct_max16_c)
WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)
WRAPPER8_16_SQ(rd8x8_c, rd16_c)
WRAPPER8_16_SQ(bit8x8_c, bit16_c)

static void vector_fmul_reverse_c(float *dst, const float *src0, const float *src1, int len){
    int i;
    src1 += len-1;
    for(i=0; i<len; i++)
        dst[i] = src0[i] * src1[-i];
}

static void vector_fmul_add_c(float *dst, const float *src0, const float *src1, const float *src2, int len){
    int i;
    for(i=0; i<len; i++)
        dst[i] = src0[i] * src1[i] + src2[i];
}

static void vector_fmul_window_c(float *dst, const float *src0,
                                 const float *src1, const float *win, int len)
{
    int i,j;
    dst += len;
    win += len;
    src0+= len;
    for(i=-len, j=len-1; i<0; i++, j--) {
        float s0 = src0[i];
        float s1 = src1[j];
        float wi = win[i];
        float wj = win[j];
        dst[i] = s0*wj - s1*wi;
        dst[j] = s0*wi + s1*wj;
    }
}

static void vector_fmul_scalar_c(float *dst, const float *src, float mul,
                                 int len)
{
    int i;
    for (i = 0; i < len; i++)
        dst[i] = src[i] * mul;
}

static void butterflies_float_c(float *av_restrict v1, float *av_restrict v2,
                                int len)
{
    int i;
    for (i = 0; i < len; i++) {
        float t = v1[i] - v2[i];
        v1[i] += v2[i];
        v2[i] = t;
    }
}

static void butterflies_float_interleave_c(float *dst, const float *src0,
                                           const float *src1, int len)
{
    int i;
    for (i = 0; i < len; i++) {
        float f1 = src0[i];
        float f2 = src1[i];
        dst[2*i    ] = f1 + f2;
        dst[2*i + 1] = f1 - f2;
    }
}

float ff_scalarproduct_float_c(const float *v1, const float *v2, int len)
{
    float p = 0.0;
    int i;

    for (i = 0; i < len; i++)
        p += v1[i] * v2[i];

    return p;
}

static inline uint32_t clipf_c_one(uint32_t a, uint32_t mini,
                   uint32_t maxi, uint32_t maxisign)
{

    if(a > mini) return mini;
    else if((a^(1U<<31)) > maxisign) return maxi;
    else return a;
}

static void vector_clipf_c_opposite_sign(float *dst, const float *src, float *min, float *max, int len){
    int i;
    uint32_t mini = *(uint32_t*)min;
    uint32_t maxi = *(uint32_t*)max;
    uint32_t maxisign = maxi ^ (1U<<31);
    uint32_t *dsti = (uint32_t*)dst;
    const uint32_t *srci = (const uint32_t*)src;
    for(i=0; i<len; i+=8) {
        dsti[i + 0] = clipf_c_one(srci[i + 0], mini, maxi, maxisign);
        dsti[i + 1] = clipf_c_one(srci[i + 1], mini, maxi, maxisign);
        dsti[i + 2] = clipf_c_one(srci[i + 2], mini, maxi, maxisign);
        dsti[i + 3] = clipf_c_one(srci[i + 3], mini, maxi, maxisign);
        dsti[i + 4] = clipf_c_one(srci[i + 4], mini, maxi, maxisign);
        dsti[i + 5] = clipf_c_one(srci[i + 5], mini, maxi, maxisign);
        dsti[i + 6] = clipf_c_one(srci[i + 6], mini, maxi, maxisign);
        dsti[i + 7] = clipf_c_one(srci[i + 7], mini, maxi, maxisign);
    }
}
static void vector_clipf_c(float *dst, const float *src, float min, float max, int len){
    int i;
    if(min < 0 && max > 0) {
        vector_clipf_c_opposite_sign(dst, src, &min, &max, len);
    } else {
        for(i=0; i < len; i+=8) {
            dst[i    ] = av_clipf(src[i    ], min, max);
            dst[i + 1] = av_clipf(src[i + 1], min, max);
            dst[i + 2] = av_clipf(src[i + 2], min, max);
            dst[i + 3] = av_clipf(src[i + 3], min, max);
            dst[i + 4] = av_clipf(src[i + 4], min, max);
            dst[i + 5] = av_clipf(src[i + 5], min, max);
            dst[i + 6] = av_clipf(src[i + 6], min, max);
            dst[i + 7] = av_clipf(src[i + 7], min, max);
        }
    }
}

static int32_t scalarproduct_int16_c(const int16_t * v1, const int16_t * v2, int order)
{
    int res = 0;

    while (order--)
        res += *v1++ * *v2++;

    return res;
}

static int32_t scalarproduct_and_madd_int16_c(int16_t *v1, const int16_t *v2, const int16_t *v3, int order, int mul)
{
    int res = 0;
    while (order--) {
        res   += *v1 * *v2++;
        *v1++ += mul * *v3++;
    }
    return res;
}

static void apply_window_int16_c(int16_t *output, const int16_t *input,
                                 const int16_t *window, unsigned int len)
{
    int i;
    int len2 = len >> 1;

    for (i = 0; i < len2; i++) {
        int16_t w       = window[i];
        output[i]       = (MUL16(input[i],       w) + (1 << 14)) >> 15;
        output[len-i-1] = (MUL16(input[len-i-1], w) + (1 << 14)) >> 15;
    }
}

static void vector_clip_int32_c(int32_t *dst, const int32_t *src, int32_t min,
                                int32_t max, unsigned int len)
{
    do {
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        *dst++ = av_clip(*src++, min, max);
        len -= 8;
    } while (len > 0);
}

#define W0 2048
#define W1 2841 /* 2048*sqrt (2)*cos (1*pi/16) */
#define W2 2676 /* 2048*sqrt (2)*cos (2*pi/16) */
#define W3 2408 /* 2048*sqrt (2)*cos (3*pi/16) */
#define W4 2048 /* 2048*sqrt (2)*cos (4*pi/16) */
#define W5 1609 /* 2048*sqrt (2)*cos (5*pi/16) */
#define W6 1108 /* 2048*sqrt (2)*cos (6*pi/16) */
#define W7 565  /* 2048*sqrt (2)*cos (7*pi/16) */

static void wmv2_idct_row(short * b)
{
    int s1,s2;
    int a0,a1,a2,a3,a4,a5,a6,a7;
    /*step 1*/
    a1 = W1*b[1]+W7*b[7];
    a7 = W7*b[1]-W1*b[7];
    a5 = W5*b[5]+W3*b[3];
    a3 = W3*b[5]-W5*b[3];
    a2 = W2*b[2]+W6*b[6];
    a6 = W6*b[2]-W2*b[6];
    a0 = W0*b[0]+W0*b[4];
    a4 = W0*b[0]-W0*b[4];
    /*step 2*/
    s1 = (181*(a1-a5+a7-a3)+128)>>8;//1,3,5,7,
    s2 = (181*(a1-a5-a7+a3)+128)>>8;
    /*step 3*/
    b[0] = (a0+a2+a1+a5 + (1<<7))>>8;
    b[1] = (a4+a6 +s1   + (1<<7))>>8;
    b[2] = (a4-a6 +s2   + (1<<7))>>8;
    b[3] = (a0-a2+a7+a3 + (1<<7))>>8;
    b[4] = (a0-a2-a7-a3 + (1<<7))>>8;
    b[5] = (a4-a6 -s2   + (1<<7))>>8;
    b[6] = (a4+a6 -s1   + (1<<7))>>8;
    b[7] = (a0+a2-a1-a5 + (1<<7))>>8;
}
static void wmv2_idct_col(short * b)
{
    int s1,s2;
    int a0,a1,a2,a3,a4,a5,a6,a7;
    /*step 1, with extended precision*/
    a1 = (W1*b[8*1]+W7*b[8*7] + 4)>>3;
    a7 = (W7*b[8*1]-W1*b[8*7] + 4)>>3;
    a5 = (W5*b[8*5]+W3*b[8*3] + 4)>>3;
    a3 = (W3*b[8*5]-W5*b[8*3] + 4)>>3;
    a2 = (W2*b[8*2]+W6*b[8*6] + 4)>>3;
    a6 = (W6*b[8*2]-W2*b[8*6] + 4)>>3;
    a0 = (W0*b[8*0]+W0*b[8*4]    )>>3;
    a4 = (W0*b[8*0]-W0*b[8*4]    )>>3;
    /*step 2*/
    s1 = (181*(a1-a5+a7-a3)+128)>>8;
    s2 = (181*(a1-a5-a7+a3)+128)>>8;
    /*step 3*/
    b[8*0] = (a0+a2+a1+a5 + (1<<13))>>14;
    b[8*1] = (a4+a6 +s1   + (1<<13))>>14;
    b[8*2] = (a4-a6 +s2   + (1<<13))>>14;
    b[8*3] = (a0-a2+a7+a3 + (1<<13))>>14;

    b[8*4] = (a0-a2-a7-a3 + (1<<13))>>14;
    b[8*5] = (a4-a6 -s2   + (1<<13))>>14;
    b[8*6] = (a4+a6 -s1   + (1<<13))>>14;
    b[8*7] = (a0+a2-a1-a5 + (1<<13))>>14;
}
void ff_wmv2_idct_c(short * block){
    int i;

    for(i=0;i<64;i+=8){
        wmv2_idct_row(block+i);
    }
    for(i=0;i<8;i++){
        wmv2_idct_col(block+i);
    }
}
/* XXX: those functions should be suppressed ASAP when all IDCTs are
 converted */
static void ff_wmv2_idct_put_c(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_wmv2_idct_c(block);
    put_pixels_clamped_c(block, dest, line_size);
}
static void ff_wmv2_idct_add_c(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_wmv2_idct_c(block);
    add_pixels_clamped_c(block, dest, line_size);
}
static void ff_jref_idct_put(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_j_rev_dct (block);
    put_pixels_clamped_c(block, dest, line_size);
}
static void ff_jref_idct_add(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_j_rev_dct (block);
    add_pixels_clamped_c(block, dest, line_size);
}

static void ff_jref_idct4_put(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_j_rev_dct4 (block);
    put_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct4_add(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_j_rev_dct4 (block);
    add_pixels_clamped4_c(block, dest, line_size);
}

static void ff_jref_idct2_put(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_j_rev_dct2 (block);
    put_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct2_add(uint8_t *dest, int line_size, DCTELEM *block)
{
    ff_j_rev_dct2 (block);
    add_pixels_clamped2_c(block, dest, line_size);
}

static void ff_jref_idct1_put(uint8_t *dest, int line_size, DCTELEM *block)
{
    dest[0] = av_clip_uint8((block[0] + 4)>>3);
}
static void ff_jref_idct1_add(uint8_t *dest, int line_size, DCTELEM *block)
{
    dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3));
}

static void just_return(void *mem av_unused, int stride av_unused, int h av_unused) { return; }

/* init static data */
av_cold void ff_dsputil_static_init(void)
{
    int i;

    for(i=0;i<256;i++) ff_cropTbl[i + MAX_NEG_CROP] = i;
    for(i=0;i<MAX_NEG_CROP;i++) {
        ff_cropTbl[i] = 0;
        ff_cropTbl[i + MAX_NEG_CROP + 256] = 255;
    }

    for(i=0;i<512;i++) {
        ff_squareTbl[i] = (i - 256) * (i - 256);
    }

    for(i=0; i<64; i++) ff_inv_zigzag_direct16[ff_zigzag_direct[i]]= i+1;
}

int ff_check_alignment(void){
    static int did_fail=0;
    LOCAL_ALIGNED_16(int, aligned, [4]);

    if((intptr_t)aligned & 15){
        if(!did_fail){
#if HAVE_MMX || HAVE_ALTIVEC
            av_log(NULL, AV_LOG_ERROR,
                "Compiler did not align stack variables. Libavcodec has been miscompiled\n"
                "and may be very slow or crash. This is not a bug in libavcodec,\n"
                "but in the compiler. You may try recompiling using gcc >= 4.2.\n"
                "Do not report crashes to FFmpeg developers.\n");
#endif
            did_fail=1;
        }
        return -1;
    }
    return 0;
}

av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
{
    int i, j;

    ff_check_alignment();

#if CONFIG_ENCODERS
    if (avctx->bits_per_raw_sample == 10) {
        c->fdct    = ff_jpeg_fdct_islow_10;
        c->fdct248 = ff_fdct248_islow_10;
    } else {
        if(avctx->dct_algo==FF_DCT_FASTINT) {
            c->fdct    = ff_fdct_ifast;
            c->fdct248 = ff_fdct_ifast248;
        }
        else if(avctx->dct_algo==FF_DCT_FAAN) {
            c->fdct    = ff_faandct;
            c->fdct248 = ff_faandct248;
        }
        else {
            c->fdct    = ff_jpeg_fdct_islow_8; //slow/accurate/default
            c->fdct248 = ff_fdct248_islow_8;
        }
    }
#endif //CONFIG_ENCODERS

    if(avctx->lowres==1){
        c->idct_put= ff_jref_idct4_put;
        c->idct_add= ff_jref_idct4_add;
        c->idct    = ff_j_rev_dct4;
        c->idct_permutation_type= FF_NO_IDCT_PERM;
    }else if(avctx->lowres==2){
        c->idct_put= ff_jref_idct2_put;
        c->idct_add= ff_jref_idct2_add;
        c->idct    = ff_j_rev_dct2;
        c->idct_permutation_type= FF_NO_IDCT_PERM;
    }else if(avctx->lowres==3){
        c->idct_put= ff_jref_idct1_put;
        c->idct_add= ff_jref_idct1_add;
        c->idct    = ff_j_rev_dct1;
        c->idct_permutation_type= FF_NO_IDCT_PERM;
    }else{
        if (avctx->bits_per_raw_sample == 10) {
            c->idct_put              = ff_simple_idct_put_10;
            c->idct_add              = ff_simple_idct_add_10;
            c->idct                  = ff_simple_idct_10;
            c->idct_permutation_type = FF_NO_IDCT_PERM;
        } else {
        if(avctx->idct_algo==FF_IDCT_INT){
            c->idct_put= ff_jref_idct_put;
            c->idct_add= ff_jref_idct_add;
            c->idct    = ff_j_rev_dct;
            c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
        }else if(avctx->idct_algo==FF_IDCT_WMV2){
            c->idct_put= ff_wmv2_idct_put_c;
            c->idct_add= ff_wmv2_idct_add_c;
            c->idct    = ff_wmv2_idct_c;
            c->idct_permutation_type= FF_NO_IDCT_PERM;
        }else if(avctx->idct_algo==FF_IDCT_FAAN){
            c->idct_put= ff_faanidct_put;
            c->idct_add= ff_faanidct_add;
            c->idct    = ff_faanidct;
            c->idct_permutation_type= FF_NO_IDCT_PERM;
        }else{ //accurate/default
            c->idct_put = ff_simple_idct_put_8;
            c->idct_add = ff_simple_idct_add_8;
            c->idct     = ff_simple_idct_8;
            c->idct_permutation_type= FF_NO_IDCT_PERM;
        }
        }
    }

    c->diff_pixels = diff_pixels_c;
    c->put_pixels_clamped = put_pixels_clamped_c;
    c->put_signed_pixels_clamped = put_signed_pixels_clamped_c;
    c->add_pixels_clamped = add_pixels_clamped_c;
    c->sum_abs_dctelem = sum_abs_dctelem_c;
    c->gmc1 = gmc1_c;
    c->gmc = ff_gmc_c;
    c->pix_sum = pix_sum_c;
    c->pix_norm1 = pix_norm1_c;

    c->fill_block_tab[0] = fill_block16_c;
    c->fill_block_tab[1] = fill_block8_c;

    /* TODO [0] 16  [1] 8 */
    c->pix_abs[0][0] = pix_abs16_c;
    c->pix_abs[0][1] = pix_abs16_x2_c;
    c->pix_abs[0][2] = pix_abs16_y2_c;
    c->pix_abs[0][3] = pix_abs16_xy2_c;
    c->pix_abs[1][0] = pix_abs8_c;
    c->pix_abs[1][1] = pix_abs8_x2_c;
    c->pix_abs[1][2] = pix_abs8_y2_c;
    c->pix_abs[1][3] = pix_abs8_xy2_c;

    c->put_tpel_pixels_tab[ 0] = put_tpel_pixels_mc00_c;
    c->put_tpel_pixels_tab[ 1] = put_tpel_pixels_mc10_c;
    c->put_tpel_pixels_tab[ 2] = put_tpel_pixels_mc20_c;
    c->put_tpel_pixels_tab[ 4] = put_tpel_pixels_mc01_c;
    c->put_tpel_pixels_tab[ 5] = put_tpel_pixels_mc11_c;
    c->put_tpel_pixels_tab[ 6] = put_tpel_pixels_mc21_c;
    c->put_tpel_pixels_tab[ 8] = put_tpel_pixels_mc02_c;
    c->put_tpel_pixels_tab[ 9] = put_tpel_pixels_mc12_c;
    c->put_tpel_pixels_tab[10] = put_tpel_pixels_mc22_c;

    c->avg_tpel_pixels_tab[ 0] = avg_tpel_pixels_mc00_c;
    c->avg_tpel_pixels_tab[ 1] = avg_tpel_pixels_mc10_c;
    c->avg_tpel_pixels_tab[ 2] = avg_tpel_pixels_mc20_c;
    c->avg_tpel_pixels_tab[ 4] = avg_tpel_pixels_mc01_c;
    c->avg_tpel_pixels_tab[ 5] = avg_tpel_pixels_mc11_c;
    c->avg_tpel_pixels_tab[ 6] = avg_tpel_pixels_mc21_c;
    c->avg_tpel_pixels_tab[ 8] = avg_tpel_pixels_mc02_c;
    c->avg_tpel_pixels_tab[ 9] = avg_tpel_pixels_mc12_c;
    c->avg_tpel_pixels_tab[10] = avg_tpel_pixels_mc22_c;

#define dspfunc(PFX, IDX, NUM) \
    c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_c; \
    c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_c; \
    c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_c; \
    c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_c; \
    c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_c; \
    c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_c; \
    c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_c; \
    c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_c; \
    c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_c; \
    c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_c; \
    c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_c; \
    c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_c; \
    c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_c; \
    c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_c; \
    c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_c; \
    c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_c

    dspfunc(put_qpel, 0, 16);
    dspfunc(put_no_rnd_qpel, 0, 16);

    dspfunc(avg_qpel, 0, 16);
    /* dspfunc(avg_no_rnd_qpel, 0, 16); */

    dspfunc(put_qpel, 1, 8);
    dspfunc(put_no_rnd_qpel, 1, 8);

    dspfunc(avg_qpel, 1, 8);
    /* dspfunc(avg_no_rnd_qpel, 1, 8); */

#undef dspfunc

#if CONFIG_MLP_DECODER || CONFIG_TRUEHD_DECODER
    ff_mlp_init(c, avctx);
#endif

    c->put_mspel_pixels_tab[0]= ff_put_pixels8x8_c;
    c->put_mspel_pixels_tab[1]= put_mspel8_mc10_c;
    c->put_mspel_pixels_tab[2]= put_mspel8_mc20_c;
    c->put_mspel_pixels_tab[3]= put_mspel8_mc30_c;
    c->put_mspel_pixels_tab[4]= put_mspel8_mc02_c;
    c->put_mspel_pixels_tab[5]= put_mspel8_mc12_c;
    c->put_mspel_pixels_tab[6]= put_mspel8_mc22_c;
    c->put_mspel_pixels_tab[7]= put_mspel8_mc32_c;

#define SET_CMP_FUNC(name) \
    c->name[0]= name ## 16_c;\
    c->name[1]= name ## 8x8_c;

    SET_CMP_FUNC(hadamard8_diff)
    c->hadamard8_diff[4]= hadamard8_intra16_c;
    c->hadamard8_diff[5]= hadamard8_intra8x8_c;
    SET_CMP_FUNC(dct_sad)
    SET_CMP_FUNC(dct_max)
#if CONFIG_GPL
    SET_CMP_FUNC(dct264_sad)
#endif
    c->sad[0]= pix_abs16_c;
    c->sad[1]= pix_abs8_c;
    c->sse[0]= sse16_c;
    c->sse[1]= sse8_c;
    c->sse[2]= sse4_c;
    SET_CMP_FUNC(quant_psnr)
    SET_CMP_FUNC(rd)
    SET_CMP_FUNC(bit)
    c->vsad[0]= vsad16_c;
    c->vsad[4]= vsad_intra16_c;
    c->vsad[5]= vsad_intra8_c;
    c->vsse[0]= vsse16_c;
    c->vsse[4]= vsse_intra16_c;
    c->vsse[5]= vsse_intra8_c;
    c->nsse[0]= nsse16_c;
    c->nsse[1]= nsse8_c;
#if CONFIG_DWT
    ff_dsputil_init_dwt(c);
#endif

    c->ssd_int8_vs_int16 = ssd_int8_vs_int16_c;

    c->add_bytes= add_bytes_c;
    c->diff_bytes= diff_bytes_c;
    c->add_hfyu_median_prediction= add_hfyu_median_prediction_c;
    c->sub_hfyu_median_prediction= sub_hfyu_median_prediction_c;
    c->add_hfyu_left_prediction  = add_hfyu_left_prediction_c;
    c->add_hfyu_left_prediction_bgr32 = add_hfyu_left_prediction_bgr32_c;
    c->bswap_buf= bswap_buf;
    c->bswap16_buf = bswap16_buf;

    if (CONFIG_H263_DECODER || CONFIG_H263_ENCODER) {
        c->h263_h_loop_filter= h263_h_loop_filter_c;
        c->h263_v_loop_filter= h263_v_loop_filter_c;
    }

    c->h261_loop_filter= h261_loop_filter_c;

    c->try_8x8basis= try_8x8basis_c;
    c->add_8x8basis= add_8x8basis_c;

#if CONFIG_VORBIS_DECODER
    c->vorbis_inverse_coupling = ff_vorbis_inverse_coupling;
#endif
    c->vector_fmul_reverse = vector_fmul_reverse_c;
    c->vector_fmul_add = vector_fmul_add_c;
    c->vector_fmul_window = vector_fmul_window_c;
    c->vector_clipf = vector_clipf_c;
    c->scalarproduct_int16 = scalarproduct_int16_c;
    c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_c;
    c->apply_window_int16 = apply_window_int16_c;
    c->vector_clip_int32 = vector_clip_int32_c;
    c->scalarproduct_float = ff_scalarproduct_float_c;
    c->butterflies_float = butterflies_float_c;
    c->butterflies_float_interleave = butterflies_float_interleave_c;
    c->vector_fmul_scalar = vector_fmul_scalar_c;

    c->shrink[0]= av_image_copy_plane;
    c->shrink[1]= ff_shrink22;
    c->shrink[2]= ff_shrink44;
    c->shrink[3]= ff_shrink88;

    c->prefetch= just_return;

    memset(c->put_2tap_qpel_pixels_tab, 0, sizeof(c->put_2tap_qpel_pixels_tab));
    memset(c->avg_2tap_qpel_pixels_tab, 0, sizeof(c->avg_2tap_qpel_pixels_tab));

#undef FUNC
#undef FUNCC
#define FUNC(f, depth) f ## _ ## depth
#define FUNCC(f, depth) f ## _ ## depth ## _c

#define dspfunc1(PFX, IDX, NUM, depth)\
    c->PFX ## _pixels_tab[IDX][0] = FUNCC(PFX ## _pixels ## NUM        , depth);\
    c->PFX ## _pixels_tab[IDX][1] = FUNCC(PFX ## _pixels ## NUM ## _x2 , depth);\
    c->PFX ## _pixels_tab[IDX][2] = FUNCC(PFX ## _pixels ## NUM ## _y2 , depth);\
    c->PFX ## _pixels_tab[IDX][3] = FUNCC(PFX ## _pixels ## NUM ## _xy2, depth)

#define dspfunc2(PFX, IDX, NUM, depth)\
    c->PFX ## _pixels_tab[IDX][ 0] = FUNCC(PFX ## NUM ## _mc00, depth);\
    c->PFX ## _pixels_tab[IDX][ 1] = FUNCC(PFX ## NUM ## _mc10, depth);\
    c->PFX ## _pixels_tab[IDX][ 2] = FUNCC(PFX ## NUM ## _mc20, depth);\
    c->PFX ## _pixels_tab[IDX][ 3] = FUNCC(PFX ## NUM ## _mc30, depth);\
    c->PFX ## _pixels_tab[IDX][ 4] = FUNCC(PFX ## NUM ## _mc01, depth);\
    c->PFX ## _pixels_tab[IDX][ 5] = FUNCC(PFX ## NUM ## _mc11, depth);\
    c->PFX ## _pixels_tab[IDX][ 6] = FUNCC(PFX ## NUM ## _mc21, depth);\
    c->PFX ## _pixels_tab[IDX][ 7] = FUNCC(PFX ## NUM ## _mc31, depth);\
    c->PFX ## _pixels_tab[IDX][ 8] = FUNCC(PFX ## NUM ## _mc02, depth);\
    c->PFX ## _pixels_tab[IDX][ 9] = FUNCC(PFX ## NUM ## _mc12, depth);\
    c->PFX ## _pixels_tab[IDX][10] = FUNCC(PFX ## NUM ## _mc22, depth);\
    c->PFX ## _pixels_tab[IDX][11] = FUNCC(PFX ## NUM ## _mc32, depth);\
    c->PFX ## _pixels_tab[IDX][12] = FUNCC(PFX ## NUM ## _mc03, depth);\
    c->PFX ## _pixels_tab[IDX][13] = FUNCC(PFX ## NUM ## _mc13, depth);\
    c->PFX ## _pixels_tab[IDX][14] = FUNCC(PFX ## NUM ## _mc23, depth);\
    c->PFX ## _pixels_tab[IDX][15] = FUNCC(PFX ## NUM ## _mc33, depth)


#define BIT_DEPTH_FUNCS(depth, dct)\
    c->get_pixels                    = FUNCC(get_pixels   ## dct   , depth);\
    c->draw_edges                    = FUNCC(draw_edges            , depth);\
    c->emulated_edge_mc              = FUNC (ff_emulated_edge_mc   , depth);\
    c->clear_block                   = FUNCC(clear_block  ## dct   , depth);\
    c->clear_blocks                  = FUNCC(clear_blocks ## dct   , depth);\
    c->add_pixels8                   = FUNCC(add_pixels8  ## dct   , depth);\
    c->add_pixels4                   = FUNCC(add_pixels4  ## dct   , depth);\
    c->put_no_rnd_pixels_l2[0]       = FUNCC(put_no_rnd_pixels16_l2, depth);\
    c->put_no_rnd_pixels_l2[1]       = FUNCC(put_no_rnd_pixels8_l2 , depth);\
\
    c->put_h264_chroma_pixels_tab[0] = FUNCC(put_h264_chroma_mc8   , depth);\
    c->put_h264_chroma_pixels_tab[1] = FUNCC(put_h264_chroma_mc4   , depth);\
    c->put_h264_chroma_pixels_tab[2] = FUNCC(put_h264_chroma_mc2   , depth);\
    c->avg_h264_chroma_pixels_tab[0] = FUNCC(avg_h264_chroma_mc8   , depth);\
    c->avg_h264_chroma_pixels_tab[1] = FUNCC(avg_h264_chroma_mc4   , depth);\
    c->avg_h264_chroma_pixels_tab[2] = FUNCC(avg_h264_chroma_mc2   , depth);\
\
    dspfunc1(put       , 0, 16, depth);\
    dspfunc1(put       , 1,  8, depth);\
    dspfunc1(put       , 2,  4, depth);\
    dspfunc1(put       , 3,  2, depth);\
    dspfunc1(put_no_rnd, 0, 16, depth);\
    dspfunc1(put_no_rnd, 1,  8, depth);\
    dspfunc1(avg       , 0, 16, depth);\
    dspfunc1(avg       , 1,  8, depth);\
    dspfunc1(avg       , 2,  4, depth);\
    dspfunc1(avg       , 3,  2, depth);\
    dspfunc1(avg_no_rnd, 0, 16, depth);\
    dspfunc1(avg_no_rnd, 1,  8, depth);\
\
    dspfunc2(put_h264_qpel, 0, 16, depth);\
    dspfunc2(put_h264_qpel, 1,  8, depth);\
    dspfunc2(put_h264_qpel, 2,  4, depth);\
    dspfunc2(put_h264_qpel, 3,  2, depth);\
    dspfunc2(avg_h264_qpel, 0, 16, depth);\
    dspfunc2(avg_h264_qpel, 1,  8, depth);\
    dspfunc2(avg_h264_qpel, 2,  4, depth);

    switch (avctx->bits_per_raw_sample) {
    case 9:
        if (c->dct_bits == 32) {
            BIT_DEPTH_FUNCS(9, _32);
        } else {
            BIT_DEPTH_FUNCS(9, _16);
        }
        break;
    case 10:
        if (c->dct_bits == 32) {
            BIT_DEPTH_FUNCS(10, _32);
        } else {
            BIT_DEPTH_FUNCS(10, _16);
        }
        break;
    case 12:
        if (c->dct_bits == 32) {
            BIT_DEPTH_FUNCS(12, _32);
        } else {
            BIT_DEPTH_FUNCS(12, _16);
        }
        break;
    case 14:
        if (c->dct_bits == 32) {
            BIT_DEPTH_FUNCS(14, _32);
        } else {
            BIT_DEPTH_FUNCS(14, _16);
        }
        break;
    default:
        if(avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) {
            BIT_DEPTH_FUNCS(8, _16);
        }
        break;
    }


    if (HAVE_MMX)        ff_dsputil_init_mmx   (c, avctx);
    if (ARCH_ARM)        ff_dsputil_init_arm   (c, avctx);
    if (HAVE_VIS)        ff_dsputil_init_vis   (c, avctx);
    if (ARCH_ALPHA)      ff_dsputil_init_alpha (c, avctx);
    if (ARCH_PPC)        ff_dsputil_init_ppc   (c, avctx);
    if (HAVE_MMI)        ff_dsputil_init_mmi   (c, avctx);
    if (ARCH_SH4)        ff_dsputil_init_sh4   (c, avctx);
    if (ARCH_BFIN)       ff_dsputil_init_bfin  (c, avctx);
    if (HAVE_MIPSFPU)    ff_dsputil_init_mips  (c, avctx);

    for (i = 0; i < 4; i++) {
        for (j = 0; j < 16; j++) {
            if(!c->put_2tap_qpel_pixels_tab[i][j])
                c->put_2tap_qpel_pixels_tab[i][j] =
                    c->put_h264_qpel_pixels_tab[i][j];
            if(!c->avg_2tap_qpel_pixels_tab[i][j])
                c->avg_2tap_qpel_pixels_tab[i][j] =
                    c->avg_h264_qpel_pixels_tab[i][j];
        }
    }

    ff_init_scantable_permutation(c->idct_permutation,
                                  c->idct_permutation_type);
}

av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
{
    ff_dsputil_init(c, avctx);
}

---