printf("Unknown vq code: %d\n", vqid);
av_log(ri->avctx, AV_LOG_ERROR, "Unknown vq code: %d\n", vqid);
static void roqvideo_decode_frame(RoqContext *ri){    unsigned int chunk_id = 0, chunk_arg = 0;    unsigned long chunk_size = 0;    int i, j, k, nv1, nv2, vqflg = 0, vqflg_pos = -1;    int vqid, bpos, xpos, ypos, xp, yp, x, y;    int frame_stats[2][4] = {{0},{0}};    roq_qcell *qcell;    unsigned char *buf = ri->buf;    unsigned char *buf_end = ri->buf + ri->size;    while (buf < buf_end) {        chunk_id = get_word(buf);        chunk_size = get_long(buf);        chunk_arg = get_word(buf);        if(chunk_id == RoQ_QUAD_VQ)            break;        if(chunk_id == RoQ_QUAD_CODEBOOK) {            if((nv1 = chunk_arg >> 8) == 0)                nv1 = 256;            if((nv2 = chunk_arg & 0xff) == 0 && nv1 * 6 < chunk_size)                nv2 = 256;            for(i = 0; i < nv1; i++) {                ri->cells[i].y0 = get_byte(buf);                ri->cells[i].y1 = get_byte(buf);                ri->cells[i].y2 = get_byte(buf);                ri->cells[i].y3 = get_byte(buf);                ri->cells[i].u = get_byte(buf);                ri->cells[i].v = get_byte(buf);            }            for(i = 0; i < nv2; i++)                for(j = 0; j < 4; j++)                    ri->qcells[i].idx[j] = get_byte(buf);        }    }    bpos = xpos = ypos = 0;    while(bpos < chunk_size) {        for (yp = ypos; yp < ypos + 16; yp += 8)            for (xp = xpos; xp < xpos + 16; xp += 8) {                if (vqflg_pos < 0) {                    vqflg = buf[bpos++]; vqflg |= (buf[bpos++] << 8);                    vqflg_pos = 7;                }                vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;                frame_stats[0][vqid]++;                vqflg_pos--;                switch(vqid) {                case RoQ_ID_MOT:                    apply_motion_8x8(ri, xp, yp, 0, 8, 8);                    break;                case RoQ_ID_FCC:                    apply_motion_8x8(ri, xp, yp, buf[bpos++], chunk_arg >> 8,                        chunk_arg & 0xff);                    break;                case RoQ_ID_SLD:                    qcell = ri->qcells + buf[bpos++];                    apply_vector_4x4(ri, xp, yp, ri->cells + qcell->idx[0]);                    apply_vector_4x4(ri, xp+4, yp, ri->cells + qcell->idx[1]);                    apply_vector_4x4(ri, xp, yp+4, ri->cells + qcell->idx[2]);                    apply_vector_4x4(ri, xp+4, yp+4, ri->cells + qcell->idx[3]);                    break;                case RoQ_ID_CCC:                    for (k = 0; k < 4; k++) {                        x = xp; y = yp;                        if(k & 0x01) x += 4;                        if(k & 0x02) y += 4;                        if (vqflg_pos < 0) {                            vqflg = buf[bpos++];                            vqflg |= (buf[bpos++] << 8);                            vqflg_pos = 7;                        }                        vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;                        frame_stats[1][vqid]++;                        vqflg_pos--;                        switch(vqid) {                        case RoQ_ID_MOT:                            apply_motion_4x4(ri, x, y, 0, 8, 8);                            break;                        case RoQ_ID_FCC:                            apply_motion_4x4(ri, x, y, buf[bpos++],                                 chunk_arg >> 8, chunk_arg & 0xff);                            break;                        case RoQ_ID_SLD:                            qcell = ri->qcells + buf[bpos++];                            apply_vector_2x2(ri, x, y, ri->cells + qcell->idx[0]);                            apply_vector_2x2(ri, x+2, y, ri->cells + qcell->idx[1]);                            apply_vector_2x2(ri, x, y+2, ri->cells + qcell->idx[2]);                            apply_vector_2x2(ri, x+2, y+2, ri->cells + qcell->idx[3]);                            break;                        case RoQ_ID_CCC:                            apply_vector_2x2(ri, x, y, ri->cells + buf[bpos]);                            apply_vector_2x2(ri, x+2, y, ri->cells + buf[bpos+1]);                            apply_vector_2x2(ri, x, y+2, ri->cells + buf[bpos+2]);                            apply_vector_2x2(ri, x+2, y+2, ri->cells + buf[bpos+3]);                            bpos += 4;                            break;                        }                    }                    break;                default:                    printf("Unknown vq code: %d\n", vqid);            }        }        xpos += 16;        if (xpos >= ri->avctx->width) {            xpos -= ri->avctx->width;            ypos += 16;        }        if(ypos >= ri->avctx->height)            break;    }}