/*
  * Header file for hardcoded DV tables
  *
  * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
  *
  * 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
  */
 

 #ifndef AVCODEC_DV_TABLEGEN_H
 #define AVCODEC_DV_TABLEGEN_H

 
 #include <stdint.h>
 #include "dv_vlc_data.h"
 
 #if CONFIG_SMALL
 #define DV_VLC_MAP_RUN_SIZE 15
 #define DV_VLC_MAP_LEV_SIZE 23
 #else
 #define DV_VLC_MAP_RUN_SIZE  64
 #define DV_VLC_MAP_LEV_SIZE 512 //FIXME sign was removed so this should be /2 but needs check
 #endif
 
 /* VLC encoding lookup table */

 typedef struct dv_vlc_pair {

    uint32_t vlc;
    uint32_t size;

 } dv_vlc_pair;

 
 #if CONFIG_HARDCODED_TABLES
 #define dv_vlc_map_tableinit()
 #include "libavcodec/dv_tables.h"
 #else
 static struct dv_vlc_pair dv_vlc_map[DV_VLC_MAP_RUN_SIZE][DV_VLC_MAP_LEV_SIZE];
 
 static void dv_vlc_map_tableinit(void)
 {
     int i, j;
     for (i = 0; i < NB_DV_VLC - 1; i++) {
        if (dv_vlc_run[i] >= DV_VLC_MAP_RUN_SIZE)
            continue;
 #if CONFIG_SMALL
        if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE)
            continue;
 #endif
 
        if (dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size != 0)
            continue;
 
        dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc  =
            dv_vlc_bits[i] << (!!dv_vlc_level[i]);
        dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size =
            dv_vlc_len[i] + (!!dv_vlc_level[i]);
     }
     for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) {
 #if CONFIG_SMALL
        for (j = 1; j < DV_VLC_MAP_LEV_SIZE; j++) {
           if (dv_vlc_map[i][j].size == 0) {
               dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
                         (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
               dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
                                       dv_vlc_map[0][j].size;
           }
        }
 #else
        for (j = 1; j < DV_VLC_MAP_LEV_SIZE/2; j++) {
           if (dv_vlc_map[i][j].size == 0) {
               dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
                         (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
               dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
                                       dv_vlc_map[0][j].size;
           }
           dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc =
                                         dv_vlc_map[i][j].vlc | 1;
           dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size =
                                         dv_vlc_map[i][j].size;
        }
 #endif
     }
 }
 #endif /* CONFIG_HARDCODED_TABLES */
 

 #endif /* AVCODEC_DV_TABLEGEN_H */