1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* Copyright (c) 2015 Kieran Kunhya
*
* 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
*/
#ifndef AVCODEC_CFHD_H
#define AVCODEC_CFHD_H
#include <stdint.h>
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "vlc.h"
#include "cfhddsp.h"
enum CFHDParam {
SampleType = 1,
SampleIndexTable = 2,
BitstreamMarker = 4,
VersionMajor = 5,
VersionMinor = 6,
VersionRevision = 7,
VersionEdit = 8,
TransformType = 10,
NumFrames = 11,
ChannelCount = 12,
WaveletCount = 13,
SubbandCount = 14,
NumSpatial = 15,
FirstWavelet = 16,
GroupTrailer = 18,
FrameType = 19,
ImageWidth = 20,
ImageHeight = 21,
FrameIndex = 23,
LowpassSubband = 25,
NumLevels = 26,
LowpassWidth = 27,
LowpassHeight = 28,
PixelOffset = 33,
LowpassQuantization=34,
LowpassPrecision = 35,
WaveletType = 37,
WaveletNumber = 38,
WaveletLevel = 39,
NumBands = 40,
HighpassWidth = 41,
HighpassHeight = 42,
LowpassBorder = 43,
HighpassBorder = 44,
LowpassScale = 45,
LowpassDivisor = 46,
SubbandNumber = 48,
BandWidth = 49,
BandHeight = 50,
SubbandBand = 51,
BandEncoding = 52,
Quantization = 53,
BandScale = 54,
BandHeader = 55,
BandTrailer = 56,
ChannelNumber = 62,
SampleFlags = 68,
FrameNumber = 69,
Precision = 70,
InputFormat = 71,
BandCodingFlags = 72,
PeakLevel = 74,
PeakOffsetLow = 75,
PeakOffsetHigh = 76,
Version = 79,
BandSecondPass = 82,
PrescaleTable = 83,
EncodedFormat = 84,
DisplayHeight = 85,
ChannelWidth = 104,
ChannelHeight = 105,
};
#define VLC_BITS 9
#define SUBBAND_COUNT 10
#define SUBBAND_COUNT_3D 17
typedef struct CFHD_RL_VLC_ELEM {
int16_t level;
int8_t len;
uint16_t run;
} CFHD_RL_VLC_ELEM;
#define DWT_LEVELS 3
#define DWT_LEVELS_3D 6
typedef struct SubBand {
ptrdiff_t stride;
int a_width;
int width;
int a_height;
int height;
int8_t read_ok;
} SubBand;
typedef struct Plane {
int width;
int height;
ptrdiff_t stride;
int16_t *idwt_buf;
int16_t *idwt_tmp;
int idwt_size;
/* TODO: merge this into SubBand structure */
int16_t *subband[SUBBAND_COUNT_3D];
int16_t *l_h[10];
SubBand band[DWT_LEVELS_3D][4];
} Plane;
typedef struct Peak {
int level;
int offset;
GetByteContext base;
} Peak;
typedef struct CFHDContext {
AVCodecContext *avctx;
CFHD_RL_VLC_ELEM table_9_rl_vlc[2088];
VLC vlc_9;
CFHD_RL_VLC_ELEM table_18_rl_vlc[4572];
VLC vlc_18;
int lut[2][256];
GetBitContext gb;
int planes;
int frame_type;
int frame_index;
int sample_type;
int transform_type;
int coded_width;
int coded_height;
int cropped_height;
enum AVPixelFormat coded_format;
int progressive;
int a_width;
int a_height;
int a_format;
int a_transform_type;
int bpc; // bits per channel/component
int channel_cnt;
int subband_cnt;
int band_encoding;
int channel_num;
uint8_t lowpass_precision;
uint16_t quantisation;
int codebook;
int difference_coding;
int subband_num;
int level;
int subband_num_actual;
uint8_t prescale_table[8];
Plane plane[4];
Peak peak;
CFHDDSPContext dsp;
} CFHDContext;
int ff_cfhd_init_vlcs(CFHDContext *s);
#endif /* AVCODEC_CFHD_H */
|
