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
|
/*
* Copyright (C) Texas Instruments - http://www.ti.com/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file Encoder_libjpeg.h
*
* This defines API for camerahal to encode YUV using libjpeg
*
*/
#ifndef ANDROID_CAMERA_HARDWARE_ENCODER_LIBJPEG_H
#define ANDROID_CAMERA_HARDWARE_ENCODER_LIBJPEG_H
#include <utils/threads.h>
#include <utils/RefBase.h>
extern "C" {
#include "jhead.h"
}
namespace android {
/**
* libjpeg encoder class - uses libjpeg to encode yuv
*/
#define MAX_EXIF_TAGS_SUPPORTED 30
typedef void (*encoder_libjpeg_callback_t) (size_t jpeg_size,
uint8_t* src,
CameraFrame::FrameType type,
void* cookie1,
void* cookie2,
void* cookie3);
static const char TAG_MODEL[] = "Model";
static const char TAG_MAKE[] = "Make";
static const char TAG_FOCALLENGTH[] = "FocalLength";
static const char TAG_DATETIME[] = "DateTime";
static const char TAG_IMAGE_WIDTH[] = "ImageWidth";
static const char TAG_IMAGE_LENGTH[] = "ImageLength";
static const char TAG_GPS_LAT[] = "GPSLatitude";
static const char TAG_GPS_LAT_REF[] = "GPSLatitudeRef";
static const char TAG_GPS_LONG[] = "GPSLongitude";
static const char TAG_GPS_LONG_REF[] = "GPSLongitudeRef";
static const char TAG_GPS_ALT[] = "GPSAltitude";
static const char TAG_GPS_ALT_REF[] = "GPSAltitudeRef";
static const char TAG_GPS_MAP_DATUM[] = "GPSMapDatum";
static const char TAG_GPS_PROCESSING_METHOD[] = "GPSProcessingMethod";
static const char TAG_GPS_VERSION_ID[] = "GPSVersionID";
static const char TAG_GPS_TIMESTAMP[] = "GPSTimeStamp";
static const char TAG_GPS_DATESTAMP[] = "GPSDateStamp";
static const char TAG_ORIENTATION[] = "Orientation";
class ExifElementsTable {
public:
ExifElementsTable() :
gps_tag_count(0), exif_tag_count(0), position(0),
jpeg_opened(false) { }
~ExifElementsTable();
status_t insertElement(const char* tag, const char* value);
void insertExifToJpeg(unsigned char* jpeg, size_t jpeg_size);
void saveJpeg(unsigned char* picture, size_t jpeg_size);
static const char* degreesToExifOrientation(const char*);
private:
ExifElement_t table[MAX_EXIF_TAGS_SUPPORTED];
unsigned int gps_tag_count;
unsigned int exif_tag_count;
unsigned int position;
bool jpeg_opened;
};
class Encoder_libjpeg : public Thread {
public:
Encoder_libjpeg(uint8_t* src,
int src_size,
uint8_t* dst,
int dst_size,
int quality,
int width,
int height,
encoder_libjpeg_callback_t cb,
CameraFrame::FrameType type,
void* cookie1,
void* cookie2,
void* cookie3)
: Thread(false), mSrc(src), mDest(dst), mSrcSize(src_size), mDestSize(dst_size),
mQuality(quality), mWidth(width), mHeight(height), mCb(cb), mCookie1(cookie1),
mCookie2(cookie2), mCookie3(cookie3), mType(type) {
this->incStrong(this);
}
~Encoder_libjpeg() {
}
virtual bool threadLoop() {
size_t size = encode();
mCb(size, mSrc, mType, mCookie1, mCookie2, mCookie3);
// encoder thread runs, self-destructs, and then exits
this->decStrong(this);
return false;
}
private:
uint8_t* mSrc;
uint8_t* mDest;
int mSrcSize, mDestSize;
int mQuality, mWidth, mHeight;
encoder_libjpeg_callback_t mCb;
void* mCookie1;
void* mCookie2;
void* mCookie3;
CameraFrame::FrameType mType;
size_t encode();
};
}
#endif
|
