FFmpeg
libavcodec
cbs_jpeg.h
Go to the documentation of this file.
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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
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_CBS_JPEG_H
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#define AVCODEC_CBS_JPEG_H
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#include <stddef.h>
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#include <stdint.h>
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#include "
libavutil/buffer.h
"
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enum
{
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JPEG_MARKER_SOF0
= 0xc0,
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JPEG_MARKER_SOF1
= 0xc1,
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JPEG_MARKER_SOF2
= 0xc2,
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JPEG_MARKER_SOF3
= 0xc3,
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JPEG_MARKER_DHT
= 0xc4,
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JPEG_MARKER_SOI
= 0xd8,
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JPEG_MARKER_EOI
= 0xd9,
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JPEG_MARKER_SOS
= 0xda,
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JPEG_MARKER_DQT
= 0xdb,
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JPEG_MARKER_APPN
= 0xe0,
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JPEG_MARKER_JPGN
= 0xf0,
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JPEG_MARKER_COM
= 0xfe,
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};
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enum
{
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JPEG_MAX_COMPONENTS
= 255,
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JPEG_MAX_HEIGHT
= 65535,
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JPEG_MAX_WIDTH
= 65535,
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};
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typedef
struct
JPEGRawFrameHeader
{
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uint16_t
Lf
;
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uint8_t
P
;
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uint16_t
Y
;
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uint16_t
X
;
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uint16_t
Nf
;
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uint8_t
C
[
JPEG_MAX_COMPONENTS
];
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uint8_t
H
[
JPEG_MAX_COMPONENTS
];
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uint8_t
V
[
JPEG_MAX_COMPONENTS
];
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uint8_t
Tq
[
JPEG_MAX_COMPONENTS
];
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}
JPEGRawFrameHeader
;
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typedef
struct
JPEGRawScanHeader
{
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uint16_t
Ls
;
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uint8_t
Ns
;
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uint8_t
Cs
[
JPEG_MAX_COMPONENTS
];
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uint8_t
Td
[
JPEG_MAX_COMPONENTS
];
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uint8_t
Ta
[
JPEG_MAX_COMPONENTS
];
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uint8_t
Ss
;
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uint8_t
Se
;
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uint8_t
Ah
;
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uint8_t
Al
;
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}
JPEGRawScanHeader
;
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typedef
struct
JPEGRawScan
{
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JPEGRawScanHeader
header
;
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uint8_t *
data
;
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AVBufferRef
*
data_ref
;
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size_t
data_size
;
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}
JPEGRawScan
;
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typedef
struct
JPEGRawQuantisationTable
{
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uint8_t
Pq
;
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uint8_t
Tq
;
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uint16_t
Q
[64];
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}
JPEGRawQuantisationTable
;
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typedef
struct
JPEGRawQuantisationTableSpecification
{
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uint16_t
Lq
;
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JPEGRawQuantisationTable
table
[4];
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}
JPEGRawQuantisationTableSpecification
;
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typedef
struct
JPEGRawHuffmanTable
{
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uint8_t
Tc
;
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uint8_t
Th
;
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uint8_t
L
[16];
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uint8_t
V
[256];
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}
JPEGRawHuffmanTable
;
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typedef
struct
JPEGRawHuffmanTableSpecification
{
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uint16_t
Lh
;
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JPEGRawHuffmanTable
table
[8];
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}
JPEGRawHuffmanTableSpecification
;
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typedef
struct
JPEGRawApplicationData
{
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uint16_t
Lp
;
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uint8_t *
Ap
;
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AVBufferRef
*
Ap_ref
;
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}
JPEGRawApplicationData
;
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typedef
struct
JPEGRawComment
{
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uint16_t
Lc
;
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uint8_t *
Cm
;
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AVBufferRef
*
Cm_ref
;
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}
JPEGRawComment
;
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#endif
/* AVCODEC_CBS_JPEG_H */
JPEG_MAX_COMPONENTS
@ JPEG_MAX_COMPONENTS
Definition:
cbs_jpeg.h:46
JPEGRawApplicationData::Lp
uint16_t Lp
Definition:
cbs_jpeg.h:111
JPEG_MARKER_COM
@ JPEG_MARKER_COM
Definition:
cbs_jpeg.h:42
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
JPEG_MARKER_APPN
@ JPEG_MARKER_APPN
Definition:
cbs_jpeg.h:40
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_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
JPEGRawQuantisationTableSpecification::table
JPEGRawQuantisationTable table[4]
Definition:
cbs_jpeg.h:95
JPEG_MARKER_SOF0
@ JPEG_MARKER_SOF0
Definition:
cbs_jpeg.h:29
JPEGRawScanHeader::Ns
uint8_t Ns
Definition:
cbs_jpeg.h:68
JPEGRawFrameHeader::H
uint8_t H[JPEG_MAX_COMPONENTS]
Definition:
cbs_jpeg.h:61
JPEG_MARKER_SOI
@ JPEG_MARKER_SOI
Definition:
cbs_jpeg.h:35
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
JPEGRawHuffmanTableSpecification
Definition:
cbs_jpeg.h:105
JPEG_MARKER_SOF2
@ JPEG_MARKER_SOF2
Definition:
cbs_jpeg.h:31
JPEGRawFrameHeader::X
uint16_t X
Definition:
cbs_jpeg.h:57
JPEGRawScanHeader::Ss
uint8_t Ss
Definition:
cbs_jpeg.h:74
JPEGRawComment::Lc
uint16_t Lc
Definition:
cbs_jpeg.h:117
JPEG_MARKER_SOF1
@ JPEG_MARKER_SOF1
Definition:
cbs_jpeg.h:30
buffer.h
JPEGRawScanHeader::Cs
uint8_t Cs[JPEG_MAX_COMPONENTS]
Definition:
cbs_jpeg.h:70
JPEG_MARKER_SOF3
@ JPEG_MARKER_SOF3
Definition:
cbs_jpeg.h:32
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
JPEGRawHuffmanTable::V
uint8_t V[256]
Definition:
cbs_jpeg.h:102
JPEG_MARKER_SOS
@ JPEG_MARKER_SOS
Definition:
cbs_jpeg.h:37
JPEG_MAX_HEIGHT
@ JPEG_MAX_HEIGHT
Definition:
cbs_jpeg.h:48
JPEGRawFrameHeader::V
uint8_t V[JPEG_MAX_COMPONENTS]
Definition:
cbs_jpeg.h:62
JPEGRawHuffmanTableSpecification::Lh
uint16_t Lh
Definition:
cbs_jpeg.h:106
JPEG_MAX_WIDTH
@ JPEG_MAX_WIDTH
Definition:
cbs_jpeg.h:49
AVBufferRef
A reference to a data buffer.
Definition:
buffer.h:82
JPEG_MARKER_DHT
@ JPEG_MARKER_DHT
Definition:
cbs_jpeg.h:34
JPEGRawFrameHeader
Definition:
cbs_jpeg.h:53
JPEGRawComment
Definition:
cbs_jpeg.h:116
JPEGRawFrameHeader::Lf
uint16_t Lf
Definition:
cbs_jpeg.h:54
JPEGRawHuffmanTable
Definition:
cbs_jpeg.h:98
JPEGRawApplicationData::Ap
uint8_t * Ap
Definition:
cbs_jpeg.h:112
JPEGRawScanHeader::Ta
uint8_t Ta[JPEG_MAX_COMPONENTS]
Definition:
cbs_jpeg.h:72
JPEGRawComment::Cm
uint8_t * Cm
Definition:
cbs_jpeg.h:118
JPEG_MARKER_JPGN
@ JPEG_MARKER_JPGN
Definition:
cbs_jpeg.h:41
JPEGRawScanHeader::Se
uint8_t Se
Definition:
cbs_jpeg.h:75
JPEGRawScanHeader
Definition:
cbs_jpeg.h:66
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