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Diffstat (limited to 'contrib/ffmpeg/libavcodec/vc1data.h')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/vc1data.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/vc1data.h b/contrib/ffmpeg/libavcodec/vc1data.h new file mode 100644 index 000000000..5d995d754 --- /dev/null +++ b/contrib/ffmpeg/libavcodec/vc1data.h @@ -0,0 +1,163 @@ +/* + * 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 "bitstream.h" +#include "rational.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_normal_zz[64]; +extern const int8_t ff_vc1_horizontal_zz [64]; +extern const int8_t ff_vc1_vertical_zz [64]; +extern const int8_t ff_vc1_simple_progressive_8x8_zz [64]; +extern const int8_t ff_vc1_simple_progressive_8x4_zz [32]; +extern const int8_t ff_vc1_simple_progressive_4x8_zz [32]; +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 */ |