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libavcodec
mpeg12vlc.h
Go to the documentation of this file.
1
/*
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* MPEG-1/2 VLC
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* copyright (c) 2000,2001 Fabrice Bellard
4
* copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
9
* modify it under the terms of the GNU Lesser General Public
10
* License as published by the Free Software Foundation; either
11
* version 2.1 of the License, or (at your option) any later version.
12
*
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* FFmpeg is distributed in the hope that it will be useful,
14
* but WITHOUT ANY WARRANTY; without even the implied warranty of
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16
* Lesser General Public License for more details.
17
*
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* You should have received a copy of the GNU Lesser General Public
19
* License along with FFmpeg; if not, write to the Free Software
20
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21
*/
22
23
/**
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* @file
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* MPEG-1/2 VLC.
26
*/
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#ifndef AVCODEC_MPEG12VLC_H
29
#define AVCODEC_MPEG12VLC_H
30
31
#include "
vlc.h
"
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#define DC_VLC_BITS 9
34
#define MV_VLC_BITS 8
35
#define TEX_VLC_BITS 9
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#define MBINCR_VLC_BITS 9
38
#define MB_PAT_VLC_BITS 9
39
#define MB_PTYPE_VLC_BITS 6
40
#define MB_BTYPE_VLC_BITS 6
41
42
extern
VLC
ff_dc_lum_vlc
;
43
extern
VLC
ff_dc_chroma_vlc
;
44
extern
VLC
ff_mbincr_vlc
;
45
extern
VLC
ff_mb_ptype_vlc
;
46
extern
VLC
ff_mb_btype_vlc
;
47
extern
VLC
ff_mb_pat_vlc
;
48
extern
VLC
ff_mv_vlc
;
49
50
void
ff_mpeg12_init_vlcs
(
void
);
51
52
#define MPEG12_RL_NB_ELEMS 111
53
54
extern
const
int8_t
ff_mpeg12_level
[
MPEG12_RL_NB_ELEMS
];
55
extern
const
int8_t
ff_mpeg12_run
[
MPEG12_RL_NB_ELEMS
];
56
57
extern
const
uint16_t
ff_mpeg1_vlc_table
[
MPEG12_RL_NB_ELEMS
+ 2][2];
58
extern
const
uint16_t
ff_mpeg2_vlc_table
[
MPEG12_RL_NB_ELEMS
+ 2][2];
59
60
extern
RL_VLC_ELEM
ff_mpeg1_rl_vlc
[];
61
extern
RL_VLC_ELEM
ff_mpeg2_rl_vlc
[];
62
63
void
ff_init_2d_vlc_rl
(
const
uint16_t table_vlc[][2],
RL_VLC_ELEM
rl_vlc
[],
64
const
int8_t table_run[],
const
uint8_t table_level[],
65
int
n,
unsigned
static_size,
int
flags
);
66
67
void
ff_mpeg1_init_uni_ac_vlc
(
const
int8_t max_level[],
const
uint8_t index_run[],
68
const
uint16_t table_vlc[][2], uint8_t uni_ac_vlc_len[]);
69
70
#endif
/* AVCODEC_MPEG12VLC_H */
ff_dc_lum_vlc
VLC ff_dc_lum_vlc
Definition:
mpeg12.c:120
MPEG12_RL_NB_ELEMS
#define MPEG12_RL_NB_ELEMS
Definition:
mpeg12vlc.h:52
ff_mb_btype_vlc
VLC ff_mb_btype_vlc
Definition:
mpeg12.c:125
ff_mb_pat_vlc
VLC ff_mb_pat_vlc
Definition:
mpeg12.c:126
ff_mbincr_vlc
VLC ff_mbincr_vlc
Definition:
mpeg12.c:123
ff_mpeg1_init_uni_ac_vlc
void ff_mpeg1_init_uni_ac_vlc(const int8_t max_level[], const uint8_t index_run[], const uint16_t table_vlc[][2], uint8_t uni_ac_vlc_len[])
Definition:
mpeg12enc.c:101
ff_mb_ptype_vlc
VLC ff_mb_ptype_vlc
Definition:
mpeg12.c:124
ff_mpeg1_vlc_table
const uint16_t ff_mpeg1_vlc_table[MPEG12_RL_NB_ELEMS+2][2]
Definition:
mpeg12data.c:67
ff_mpeg1_rl_vlc
RL_VLC_ELEM ff_mpeg1_rl_vlc[]
Definition:
mpeg12.c:128
ff_init_2d_vlc_rl
void ff_init_2d_vlc_rl(const uint16_t table_vlc[][2], RL_VLC_ELEM rl_vlc[], const int8_t table_run[], const uint8_t table_level[], int n, unsigned static_size, int flags)
Definition:
mpeg12.c:67
ff_dc_chroma_vlc
VLC ff_dc_chroma_vlc
Definition:
mpeg12.c:121
ff_mpeg2_vlc_table
const uint16_t ff_mpeg2_vlc_table[MPEG12_RL_NB_ELEMS+2][2]
Definition:
mpeg12data.c:100
RL_VLC_ELEM
Definition:
vlc.h:50
ff_mpeg12_run
const int8_t ff_mpeg12_run[MPEG12_RL_NB_ELEMS]
Definition:
mpeg12data.c:150
ff_mpeg12_level
const int8_t ff_mpeg12_level[MPEG12_RL_NB_ELEMS]
Definition:
mpeg12data.c:133
ff_mpeg2_rl_vlc
RL_VLC_ELEM ff_mpeg2_rl_vlc[]
Definition:
mpeg12.c:129
ff_mpeg12_init_vlcs
void ff_mpeg12_init_vlcs(void)
Definition:
mpeg12.c:164
ff_mv_vlc
VLC ff_mv_vlc
Definition:
mpeg12.c:118
VLC
Definition:
vlc.h:33
vlc.h
flags
#define flags(name, subs,...)
Definition:
cbs_av1.c:474
rl_vlc
static VLC rl_vlc[2]
Definition:
mobiclip.c:277
Generated on Thu Apr 18 2024 22:42:02 for FFmpeg by
1.8.17