FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
cfhd.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Kieran Kunhya
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVCODEC_CFHD_H
22 #define AVCODEC_CFHD_H
23 
24 #include <stdint.h>
25 
26 #include "libavutil/avassert.h"
27 
28 #include "avcodec.h"
29 #include "get_bits.h"
30 #include "vlc.h"
31 
32 #define VLC_BITS 9
33 #define SUBBAND_COUNT 10
34 
35 typedef struct CFHD_RL_VLC_ELEM {
36  int16_t level;
37  int8_t len;
38  uint16_t run;
40 
41 #define DWT_LEVELS 3
42 
43 typedef struct SubBand {
44  int level;
46  ptrdiff_t stride;
47  int a_width;
48  int width;
49  int a_height;
50  int height;
51  int pshift;
52  int quant;
54 } SubBand;
55 
56 typedef struct Plane {
57  int width;
58  int height;
59  ptrdiff_t stride;
60 
61  int16_t *idwt_buf;
62  int16_t *idwt_tmp;
63 
64  /* TODO: merge this into SubBand structure */
66  int16_t *l_h[8];
67 
69 } Plane;
70 
71 typedef struct CFHDContext {
73 
76 
79 
81 
86 
87  int a_width;
88  int a_height;
89  int a_format;
90 
91  int bpc; // bits per channel/component
96  uint16_t quantisation;
98  int pshift;
99 
100  int codebook;
102  int level;
104 
107 } CFHDContext;
108 
110 
111 #endif /* AVCODEC_CFHD_H */
int quant
Definition: cfhd.h:52
int channel_cnt
Definition: cfhd.h:92
const char * s
Definition: avisynth_c.h:768
VLC vlc_18
Definition: cfhd.h:78
AVCodecContext * avctx
Definition: cfhd.h:72
int a_height
Definition: cfhd.h:49
int cropped_height
Definition: cfhd.h:84
int16_t * idwt_tmp
Definition: cfhd.h:62
int a_width
Definition: cfhd.h:87
ptrdiff_t stride
Definition: cfhd.h:46
int subband_num_actual
Definition: cfhd.h:103
int width
Definition: cfhd.h:48
uint8_t
int16_t * idwt_buf
Definition: cfhd.h:61
int a_format
Definition: cfhd.h:89
bitstream reader API header.
#define SUBBAND_COUNT
Definition: cfhd.h:33
Definition: cfhd.h:43
int8_t len
Definition: cfhd.h:37
CFHD_RL_VLC_ELEM table_18_rl_vlc[4572]
Definition: cfhd.h:77
CFHD_RL_VLC_ELEM table_9_rl_vlc[2088]
Definition: cfhd.h:74
uint8_t prescale_shift[3]
Definition: cfhd.h:105
VLC vlc_9
Definition: cfhd.h:75
int16_t * l_h[8]
Definition: cfhd.h:66
#define DWT_LEVELS
Definition: cfhd.h:41
simple assert() macros that are a bit more flexible than ISO C assert().
Definition: vlc.h:26
int a_width
Definition: cfhd.h:47
int orientation
Definition: cfhd.h:45
uint16_t run
Definition: cfhd.h:38
SubBand band[DWT_LEVELS][4]
Definition: cfhd.h:68
uint8_t * ibuf
Definition: cfhd.h:53
int subband_cnt
Definition: cfhd.h:93
uint16_t quantisation
Definition: cfhd.h:96
int channel_num
Definition: cfhd.h:94
GetBitContext gb
Definition: cfhd.h:80
int wavelet_depth
Definition: cfhd.h:97
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1488
int codebook
Definition: cfhd.h:100
int subband_num
Definition: cfhd.h:101
int pshift
Definition: cfhd.h:98
enum AVPixelFormat coded_format
Definition: cfhd.h:85
int level
Definition: cfhd.h:102
int pshift
Definition: cfhd.h:51
int coded_width
Definition: cfhd.h:82
ptrdiff_t stride
Definition: cfhd.h:59
int bpc
Definition: cfhd.h:91
int a_height
Definition: cfhd.h:88
int height
Definition: cfhd.h:50
int width
Definition: cfhd.h:57
int ff_cfhd_init_vlcs(CFHDContext *s)
Definition: cfhddata.c:276
int16_t level
Definition: cfhd.h:36
Plane plane[4]
Definition: cfhd.h:106
int height
Definition: cfhd.h:58
uint8_t lowpass_precision
Definition: cfhd.h:95
int16_t * subband[SUBBAND_COUNT]
Definition: cfhd.h:65
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
Definition: cfhd.h:56
int level
Definition: cfhd.h:44
int coded_height
Definition: cfhd.h:83