static void mm_decode_inter(MmContext * s, int half_horiz, int half_vert, const uint8_t *buf, int buf_size)

{

    const int data_ptr = 2 + AV_RL16(&buf[0]);

    int d, r, y;

    d = data_ptr; r = 2; y = 0;



    while(r < data_ptr) {

        int i, j;

        int length = buf[r] & 0x7f;

        int x = buf[r+1] + ((buf[r] & 0x80) << 1);

        r += 2;



        if (length==0) {

            y += x;

            continue;

        }



        for(i=0; i<length; i++) {

            for(j=0; j<8; j++) {

                int replace = (buf[r+i] >> (7-j)) & 1;

                if (replace) {

                    int color = buf[d];

                    s->frame.data[0][y*s->frame.linesize[0] + x] = color;

                    if (half_horiz)

                        s->frame.data[0][y*s->frame.linesize[0] + x + 1] = color;

                    if (half_vert) {

                        s->frame.data[0][(y+1)*s->frame.linesize[0] + x] = color;

                        if (half_horiz)

                            s->frame.data[0][(y+1)*s->frame.linesize[0] + x + 1] = color;

                    }

                    d++;

                }

                x += half_horiz ? 2 : 1;

            }

        }



        r += length;

        y += half_vert ? 2 : 1;

    }

}
