2 * MSMPEG4 backend for ffmpeg encoder and decoder
3 * copyright (c) 2001 Fabrice Bellard
4 * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
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.
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.
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
27 * MSMPEG4 data tables.
30 #ifndef FFMPEG_MSMPEG4DATA_H
31 #define FFMPEG_MSMPEG4DATA_H
33 #include "libavutil/common.h"
34 #include "bitstream.h"
37 /* motion vector table */
38 typedef struct MVTable
{
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 */
48 extern VLC ff_msmp4_mb_i_vlc
;
49 extern VLC ff_msmp4_dc_luma_vlc
[2];
50 extern VLC ff_msmp4_dc_chroma_vlc
[2];
52 /* intra picture macro block coded block pattern */
53 extern const uint16_t ff_msmp4_mb_i_table
[64][2];
55 extern const uint8_t cbpy_tab
[16][2];
57 extern const uint8_t DCtab_lum
[13][2];
58 extern const uint8_t DCtab_chrom
[13][2];
60 extern const uint8_t mvtab
[33][2];
62 extern const uint8_t intra_MCBPC_code
[9];
63 extern const uint8_t intra_MCBPC_bits
[9];
65 extern const uint8_t inter_MCBPC_code
[28];
66 extern const uint8_t inter_MCBPC_bits
[28];
68 #define WMV1_SCANTABLE_COUNT 4
70 extern const uint8_t wmv1_scantable
[WMV1_SCANTABLE_COUNT
][64];
72 #define NB_RL_TABLES 6
74 extern RLTable rl_table
[NB_RL_TABLES
];
76 extern const uint8_t wmv1_y_dc_scale_table
[32];
77 extern const uint8_t wmv1_c_dc_scale_table
[32];
78 extern const uint8_t old_ff_y_dc_scale_table
[32];
80 extern MVTable mv_tables
[2];
82 extern const uint8_t v2_mb_type
[8][2];
83 extern const uint8_t v2_intra_cbpc
[4][2];
85 extern const uint32_t table_mb_non_intra
[128][2];
86 extern const uint8_t table_inter_intra
[4][2];
88 extern const uint32_t ff_table0_dc_lum
[120][2];
89 extern const uint32_t ff_table1_dc_lum
[120][2];
90 extern const uint32_t ff_table0_dc_chroma
[120][2];
91 extern const uint32_t ff_table1_dc_chroma
[120][2];
93 #define WMV2_INTER_CBP_TABLE_COUNT 4
94 extern const uint32_t (*wmv2_inter_table
[WMV2_INTER_CBP_TABLE_COUNT
])[2];
96 extern const uint8_t wmv2_scantableA
[64];
97 extern const uint8_t wmv2_scantableB
[64];
99 #endif /* FFMPEG_MSMPEG4DATA_H */