FFmpeg
cbs_jpeg.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_CBS_JPEG_H
20 #define AVCODEC_CBS_JPEG_H
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 #include "libavutil/buffer.h"
26 
27 
28 enum {
33 
39 
43 };
44 
45 enum {
47 
48  JPEG_MAX_HEIGHT = 65535,
49  JPEG_MAX_WIDTH = 65535,
50 };
51 
52 
53 typedef struct JPEGRawFrameHeader {
54  uint16_t Lf;
55  uint8_t P;
56  uint16_t Y;
57  uint16_t X;
58  uint16_t Nf;
59 
65 
66 typedef struct JPEGRawScanHeader {
67  uint16_t Ls;
68  uint8_t Ns;
69 
73 
74  uint8_t Ss;
75  uint8_t Se;
76  uint8_t Ah;
77  uint8_t Al;
79 
80 typedef struct JPEGRawScan {
82  uint8_t *data;
84  size_t data_size;
85 } JPEGRawScan;
86 
87 typedef struct JPEGRawQuantisationTable {
88  uint8_t Pq;
89  uint8_t Tq;
90  uint16_t Q[64];
92 
94  uint16_t Lq;
97 
98 typedef struct JPEGRawHuffmanTable {
99  uint8_t Tc;
100  uint8_t Th;
101  uint8_t L[16];
102  uint8_t V[224];
104 
106  uint16_t Lh;
109 
110 typedef struct JPEGRawApplicationData {
111  uint16_t Lp;
112  uint8_t *Ap;
115 
116 typedef struct JPEGRawComment {
117  uint16_t Lc;
118  uint8_t *Cm;
121 
122 
123 #endif /* AVCODEC_CBS_JPEG_H */
JPEGRawApplicationData::Lp
uint16_t Lp
Definition: cbs_jpeg.h:111
JPEG_MARKER_DHT
@ JPEG_MARKER_DHT
Definition: cbs_jpeg.h:34
JPEG_MAX_WIDTH
@ JPEG_MAX_WIDTH
Definition: cbs_jpeg.h:49
JPEGRawHuffmanTableSpecification::table
JPEGRawHuffmanTable table[8]
Definition: cbs_jpeg.h:107
JPEGRawFrameHeader::Y
uint16_t Y
Definition: cbs_jpeg.h:56
JPEGRawHuffmanTable::L
uint8_t L[16]
Definition: cbs_jpeg.h:101
JPEGRawScan::data_ref
AVBufferRef * data_ref
Definition: cbs_jpeg.h:83
JPEGRawScan::data
uint8_t * data
Definition: cbs_jpeg.h:82
JPEGRawScanHeader::Ah
uint8_t Ah
Definition: cbs_jpeg.h:76
JPEGRawQuantisationTable::Tq
uint8_t Tq
Definition: cbs_jpeg.h:89
JPEG_MARKER_DQT
@ JPEG_MARKER_DQT
Definition: cbs_jpeg.h:38
JPEGRawQuantisationTable
Definition: cbs_jpeg.h:87
JPEGRawScan::data_size
size_t data_size
Definition: cbs_jpeg.h:84
JPEGRawQuantisationTableSpecification::Lq
uint16_t Lq
Definition: cbs_jpeg.h:94
JPEGRawQuantisationTableSpecification
Definition: cbs_jpeg.h:93
JPEGRawApplicationData::Ap_ref
AVBufferRef * Ap_ref
Definition: cbs_jpeg.h:113
JPEGRawFrameHeader::Tq
uint8_t Tq[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:63
JPEG_MARKER_COM
@ JPEG_MARKER_COM
Definition: cbs_jpeg.h:42
JPEG_MARKER_SOF1
@ JPEG_MARKER_SOF1
Definition: cbs_jpeg.h:30
JPEG_MARKER_EOI
@ JPEG_MARKER_EOI
Definition: cbs_jpeg.h:36
JPEGRawScanHeader::Al
uint8_t Al
Definition: cbs_jpeg.h:77
JPEGRawHuffmanTable::Th
uint8_t Th
Definition: cbs_jpeg.h:100
JPEG_MARKER_SOI
@ JPEG_MARKER_SOI
Definition: cbs_jpeg.h:35
JPEGRawQuantisationTableSpecification::table
JPEGRawQuantisationTable table[4]
Definition: cbs_jpeg.h:95
JPEGRawScanHeader::Ns
uint8_t Ns
Definition: cbs_jpeg.h:68
JPEG_MARKER_SOS
@ JPEG_MARKER_SOS
Definition: cbs_jpeg.h:37
JPEGRawFrameHeader::H
uint8_t H[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:61
JPEGRawQuantisationTable::Pq
uint8_t Pq
Definition: cbs_jpeg.h:88
JPEGRawHuffmanTable::Tc
uint8_t Tc
Definition: cbs_jpeg.h:99
JPEGRawFrameHeader::P
uint8_t P
Definition: cbs_jpeg.h:55
JPEG_MARKER_SOF3
@ JPEG_MARKER_SOF3
Definition: cbs_jpeg.h:32
JPEGRawHuffmanTableSpecification
Definition: cbs_jpeg.h:105
JPEGRawFrameHeader::X
uint16_t X
Definition: cbs_jpeg.h:57
JPEG_MARKER_JPGN
@ JPEG_MARKER_JPGN
Definition: cbs_jpeg.h:41
JPEGRawScanHeader::Ss
uint8_t Ss
Definition: cbs_jpeg.h:74
JPEGRawComment::Lc
uint16_t Lc
Definition: cbs_jpeg.h:117
buffer.h
JPEGRawScanHeader::Cs
uint8_t Cs[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:70
JPEG_MAX_COMPONENTS
@ JPEG_MAX_COMPONENTS
Definition: cbs_jpeg.h:46
JPEGRawScanHeader::Ls
uint16_t Ls
Definition: cbs_jpeg.h:67
JPEGRawScanHeader::Td
uint8_t Td[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:71
JPEGRawScan::header
JPEGRawScanHeader header
Definition: cbs_jpeg.h:81
JPEGRawQuantisationTable::Q
uint16_t Q[64]
Definition: cbs_jpeg.h:90
JPEGRawFrameHeader::Nf
uint16_t Nf
Definition: cbs_jpeg.h:58
JPEGRawApplicationData
Definition: cbs_jpeg.h:110
JPEGRawScan
Definition: cbs_jpeg.h:80
JPEGRawComment::Cm_ref
AVBufferRef * Cm_ref
Definition: cbs_jpeg.h:119
JPEGRawFrameHeader::C
uint8_t C[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:60
JPEGRawFrameHeader::V
uint8_t V[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:62
JPEG_MARKER_SOF0
@ JPEG_MARKER_SOF0
Definition: cbs_jpeg.h:29
JPEGRawHuffmanTableSpecification::Lh
uint16_t Lh
Definition: cbs_jpeg.h:106
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:84
JPEGRawFrameHeader
Definition: cbs_jpeg.h:53
JPEG_MAX_HEIGHT
@ JPEG_MAX_HEIGHT
Definition: cbs_jpeg.h:48
JPEGRawComment
Definition: cbs_jpeg.h:116
JPEGRawFrameHeader::Lf
uint16_t Lf
Definition: cbs_jpeg.h:54
JPEGRawHuffmanTable
Definition: cbs_jpeg.h:98
JPEG_MARKER_SOF2
@ JPEG_MARKER_SOF2
Definition: cbs_jpeg.h:31
JPEGRawApplicationData::Ap
uint8_t * Ap
Definition: cbs_jpeg.h:112
JPEGRawScanHeader::Ta
uint8_t Ta[JPEG_MAX_COMPONENTS]
Definition: cbs_jpeg.h:72
JPEGRawHuffmanTable::V
uint8_t V[224]
Definition: cbs_jpeg.h:102
JPEGRawComment::Cm
uint8_t * Cm
Definition: cbs_jpeg.h:118
JPEGRawScanHeader::Se
uint8_t Se
Definition: cbs_jpeg.h:75
JPEGRawScanHeader
Definition: cbs_jpeg.h:66
JPEG_MARKER_APPN
@ JPEG_MARKER_APPN
Definition: cbs_jpeg.h:40