1/* 2 * MSMPEG4 backend for ffmpeg encoder and decoder 3 * copyright (c) 2001 Fabrice Bellard 4 * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> 5 * 6 * msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at> 7 * 8 * This file is part of FFmpeg. 9 * 10 * FFmpeg is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Lesser General Public 12 * License as published by the Free Software Foundation; either 13 * version 2.1 of the License, or (at your option) any later version. 14 * 15 * FFmpeg is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Lesser General Public License for more details. 19 * 20 * You should have received a copy of the GNU Lesser General Public 21 * License along with FFmpeg; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 23 */ 24 25/** 26 * @file libavcodec/msmpeg4data.h 27 * MSMPEG4 data tables. 28 */ 29 30#ifndef AVCODEC_MSMPEG4DATA_H 31#define AVCODEC_MSMPEG4DATA_H 32 33#include "libavutil/common.h" 34#include "bitstream.h" 35#include "rl.h" 36 37/* motion vector table */ 38typedef struct MVTable { 39 int n; 40 const uint16_t *table_mv_code; 41 const uint8_t *table_mv_bits; 42 const uint8_t *table_mvx; 43 const uint8_t *table_mvy; 44 uint16_t *table_mv_index; /* encoding: convert mv to index in table_mv */ 45 VLC vlc; /* decoding: vlc */ 46} MVTable; 47 48extern VLC ff_msmp4_mb_i_vlc; 49extern VLC ff_msmp4_dc_luma_vlc[2]; 50extern VLC ff_msmp4_dc_chroma_vlc[2]; 51 52/* intra picture macroblock coded block pattern */ 53extern const uint16_t ff_msmp4_mb_i_table[64][2]; 54 55extern const uint8_t cbpy_tab[16][2]; 56 57extern const uint8_t DCtab_lum[13][2]; 58extern const uint8_t DCtab_chrom[13][2]; 59 60extern const uint8_t mvtab[33][2]; 61 62extern const uint8_t intra_MCBPC_code[9]; 63extern const uint8_t intra_MCBPC_bits[9]; 64 65extern const uint8_t inter_MCBPC_code[28]; 66extern const uint8_t inter_MCBPC_bits[28]; 67 68#define WMV1_SCANTABLE_COUNT 4 69 70extern const uint8_t wmv1_scantable[WMV1_SCANTABLE_COUNT][64]; 71 72#define NB_RL_TABLES 6 73 74extern RLTable rl_table[NB_RL_TABLES]; 75 76extern const uint8_t wmv1_y_dc_scale_table[32]; 77extern const uint8_t wmv1_c_dc_scale_table[32]; 78extern const uint8_t old_ff_y_dc_scale_table[32]; 79 80extern MVTable mv_tables[2]; 81 82extern const uint8_t v2_mb_type[8][2]; 83extern const uint8_t v2_intra_cbpc[4][2]; 84 85extern const uint32_t table_mb_non_intra[128][2]; 86extern const uint8_t table_inter_intra[4][2]; 87 88extern const uint32_t ff_table0_dc_lum[120][2]; 89extern const uint32_t ff_table1_dc_lum[120][2]; 90extern const uint32_t ff_table0_dc_chroma[120][2]; 91extern const uint32_t ff_table1_dc_chroma[120][2]; 92 93#define WMV2_INTER_CBP_TABLE_COUNT 4 94extern const uint32_t (* const wmv2_inter_table[WMV2_INTER_CBP_TABLE_COUNT])[2]; 95 96extern const uint8_t wmv2_scantableA[64]; 97extern const uint8_t wmv2_scantableB[64]; 98 99#endif /* AVCODEC_MSMPEG4DATA_H */ 100