/*
  * VC-1 and WMV3 decoder
  * copyright (c) 2006 Konstantin Shishkov
  * (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer
  *

  * 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
  */
 

 /**

  * @file

  * VC-1 tables.

  */
 

 #ifndef AVCODEC_VC1DATA_H
 #define AVCODEC_VC1DATA_H

 #include <stdint.h>

 #include "libavutil/rational.h"

 #include "get_bits.h"

 /** Table for conversion between TTBLK and TTMB */

 extern const int ff_vc1_ttblk_to_tt[3][8];

 extern const int ff_vc1_ttfrm_to_tt[4];

 
 /** MV P mode - the 5th element is only used for mode 1 */

 extern const uint8_t ff_vc1_mv_pmode_table[2][5];
 extern const uint8_t ff_vc1_mv_pmode_table2[2][4];

 extern const int ff_vc1_fps_nr[5], ff_vc1_fps_dr[2];
 extern const uint8_t ff_vc1_pquant_table[3][32];

 
 /** @name VC-1 VLC tables and defines
  *  @todo TODO move this into the context
  */
 //@{
 #define VC1_BFRACTION_VLC_BITS 7

 extern VLC ff_vc1_bfraction_vlc;

 #define VC1_IMODE_VLC_BITS 4

 extern VLC ff_vc1_imode_vlc;

 #define VC1_NORM2_VLC_BITS 3

 extern VLC ff_vc1_norm2_vlc;

 #define VC1_NORM6_VLC_BITS 9

 extern VLC ff_vc1_norm6_vlc;

 /* Could be optimized, one table only needs 8 bits */
 #define VC1_TTMB_VLC_BITS 9 //12

 extern VLC ff_vc1_ttmb_vlc[3];

 #define VC1_MV_DIFF_VLC_BITS 9 //15

 extern VLC ff_vc1_mv_diff_vlc[4];

 #define VC1_CBPCY_P_VLC_BITS 9 //14

 extern VLC ff_vc1_cbpcy_p_vlc[4];

 #define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6

 extern VLC ff_vc1_4mv_block_pattern_vlc[4];

 #define VC1_TTBLK_VLC_BITS 5

 extern VLC ff_vc1_ttblk_vlc[3];

 #define VC1_SUBBLKPAT_VLC_BITS 6

 extern VLC ff_vc1_subblkpat_vlc[3];

 extern VLC ff_vc1_ac_coeff_table[8];

 //@}
 
 

 #if 0 //original bfraction from vc9data.h, not conforming to standard

 /* Denominator used for ff_vc1_bfraction_lut */

 #define B_FRACTION_DEN  840
 

 /* bfraction is fractional, we scale to the GCD 3*5*7*8 = 840 */

 extern const int16_t ff_vc1_bfraction_lut[23];

 #else

 /* Denominator used for ff_vc1_bfraction_lut */

 #define B_FRACTION_DEN  256
 
 /* pre-computed scales for all bfractions and base=256 */

 extern const int16_t ff_vc1_bfraction_lut[23];

 #endif
 

 extern const uint8_t ff_vc1_bfraction_bits[23];
 extern const uint8_t ff_vc1_bfraction_codes[23];

 
 //Same as H.264

 extern const AVRational ff_vc1_pixel_aspect[16];

 
 /* BitPlane IMODE - such a small table... */

 extern const uint8_t ff_vc1_imode_codes[7];
 extern const uint8_t ff_vc1_imode_bits[7];

 
 /* Normal-2 imode */

 extern const uint8_t ff_vc1_norm2_codes[4];
 extern const uint8_t ff_vc1_norm2_bits[4];
 extern const uint16_t ff_vc1_norm6_codes[64];
 extern const uint8_t ff_vc1_norm6_bits[64];

 /* Normal-6 imode */

 extern const uint8_t ff_vc1_norm6_spec[64][5];

 /* 4MV Block pattern VLC tables */

 extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16];
 extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16];

 extern const uint8_t wmv3_dc_scale_table[32];

 
 /* P-Picture CBPCY VLC tables */

 extern const uint16_t ff_vc1_cbpcy_p_codes[4][64];
 extern const uint8_t ff_vc1_cbpcy_p_bits[4][64];

 /* MacroBlock Transform Type: 7.1.3.11, p89

  * 8x8:B
  * 8x4:B:btm  8x4:B:top  8x4:B:both,
  * 4x8:B:right  4x8:B:left  4x8:B:both
  * 4x4:B  8x8:MB
  * 8x4:MB:btm  8x4:MB:top  8x4,MB,both
  * 4x8,MB,right  4x8,MB,left
  * 4x4,MB                               */

 extern const uint16_t ff_vc1_ttmb_codes[3][16];

 extern const uint8_t ff_vc1_ttmb_bits[3][16];

 /* TTBLK (Transform Type per Block) tables */

 extern const uint8_t ff_vc1_ttblk_codes[3][8];
 extern const uint8_t ff_vc1_ttblk_bits[3][8];

 
 /* SUBBLKPAT tables, p93-94, reordered */

 extern const uint8_t ff_vc1_subblkpat_codes[3][15];
 extern const uint8_t ff_vc1_subblkpat_bits[3][15];

 
 /* MV differential tables, p265 */

 extern const uint16_t ff_vc1_mv_diff_codes[4][73];
 extern const uint8_t ff_vc1_mv_diff_bits[4][73];

 /* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */

 
 /* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */

 extern const int8_t ff_vc1_simple_progressive_4x4_zz [16];
 extern const int8_t ff_vc1_adv_progressive_8x4_zz [32];
 extern const int8_t ff_vc1_adv_progressive_4x8_zz [32];
 extern const int8_t ff_vc1_adv_interlaced_8x8_zz [64];
 extern const int8_t ff_vc1_adv_interlaced_8x4_zz [32];
 extern const int8_t ff_vc1_adv_interlaced_4x8_zz [32];
 extern const int8_t ff_vc1_adv_interlaced_4x4_zz [16];

 
 /* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */

 extern const int32_t ff_vc1_dqscale[63];

 #endif /* AVCODEC_VC1DATA_H */