/* * 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 vc1data.h * VC-1 tables. */ #ifndef FFMPEG_VC1DATA_H #define FFMPEG_VC1DATA_H #include <stdint.h> #include "libavutil/rational.h" #include "bitstream.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 /* FFMPEG_VC1DATA_H */