static av_always_inline
void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
                   int mb_x, int mb_y)
{
    int x_off = mb_x << 4, y_off = mb_y << 4;
    int width = 16*s->mb_width, height = 16*s->mb_height;
    AVFrame *ref = s->framep[mb->ref_frame];
    VP56mv *bmv = mb->bmv;

    switch (mb->partitioning) {
    case VP8_SPLITMVMODE_NONE:
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    0, 0, 16, 16, width, height, &mb->mv);
        break;
    case VP8_SPLITMVMODE_4x4: {
        int x, y;
        VP56mv uvmv;

        /* Y */
        for (y = 0; y < 4; y++) {
            for (x = 0; x < 4; x++) {
                vp8_mc_luma(s, dst[0] + 4*y*s->linesize + x*4,
                            ref->data[0], &bmv[4*y + x],
                            4*x + x_off, 4*y + y_off, 4, 4,
                            width, height, s->linesize,
                            s->put_pixels_tab[2]);
            }
        }

        /* U/V */
        x_off >>= 1; y_off >>= 1; width >>= 1; height >>= 1;
        for (y = 0; y < 2; y++) {
            for (x = 0; x < 2; x++) {
                uvmv.x = mb->bmv[ 2*y    * 4 + 2*x  ].x +
                         mb->bmv[ 2*y    * 4 + 2*x+1].x +
                         mb->bmv[(2*y+1) * 4 + 2*x  ].x +
                         mb->bmv[(2*y+1) * 4 + 2*x+1].x;
                uvmv.y = mb->bmv[ 2*y    * 4 + 2*x  ].y +
                         mb->bmv[ 2*y    * 4 + 2*x+1].y +
                         mb->bmv[(2*y+1) * 4 + 2*x  ].y +
                         mb->bmv[(2*y+1) * 4 + 2*x+1].y;
                uvmv.x = (uvmv.x + 2 + (uvmv.x >> (INT_BIT-1))) >> 2;
                uvmv.y = (uvmv.y + 2 + (uvmv.y >> (INT_BIT-1))) >> 2;
                if (s->profile == 3) {
                    uvmv.x &= ~7;
                    uvmv.y &= ~7;
                }
                vp8_mc_chroma(s, dst[1] + 4*y*s->uvlinesize + x*4,
                              dst[2] + 4*y*s->uvlinesize + x*4,
                              ref->data[1], ref->data[2], &uvmv,
                              4*x + x_off, 4*y + y_off, 4, 4,
                              width, height, s->uvlinesize,
                              s->put_pixels_tab[2]);
            }
        }
        break;
    }
    case VP8_SPLITMVMODE_16x8:
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    0, 0, 16, 8, width, height, &bmv[0]);
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    0, 8, 16, 8, width, height, &bmv[1]);
        break;
    case VP8_SPLITMVMODE_8x16:
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    0, 0, 8, 16, width, height, &bmv[0]);
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    8, 0, 8, 16, width, height, &bmv[1]);
        break;
    case VP8_SPLITMVMODE_8x8:
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    0, 0, 8, 8, width, height, &bmv[0]);
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    8, 0, 8, 8, width, height, &bmv[1]);
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    0, 8, 8, 8, width, height, &bmv[2]);
        vp8_mc_part(s, dst, ref, x_off, y_off,
                    8, 8, 8, 8, width, height, &bmv[3]);
        break;
    }
}