blob: ea2a84f016ff1c7644cdb759413e1efef8799a3d (
plain)
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
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.
*/
/**
* This class simulates a hardware JPEG compressor. It receives image buffers
* in RGBA_8888 format, processes them in a worker thread, and then pushes them
* out to their destination stream.
*/
#ifndef HW_EMULATOR_CAMERA2_JPEG_H
#define HW_EMULATOR_CAMERA2_JPEG_H
#include "utils/Thread.h"
#include "utils/Mutex.h"
#include "utils/Timers.h"
#include "Base.h"
#include <stdio.h>
extern "C" {
#include <jpeglib.h>
}
namespace android {
class EmulatedFakeCamera2;
class JpegCompressor: private Thread, public virtual RefBase {
public:
JpegCompressor(EmulatedFakeCamera2 *parent);
~JpegCompressor();
// Start compressing COMPRESSED format buffers; JpegCompressor takes
// ownership of the Buffers vector.
status_t start(Buffers *buffers,
nsecs_t captureTime);
status_t cancel();
bool isBusy();
bool isStreamInUse(uint32_t id);
bool waitForDone(nsecs_t timeout);
// TODO: Measure this
static const size_t kMaxJpegSize = 300000;
private:
Mutex mBusyMutex;
bool mIsBusy;
Condition mDone;
Mutex mMutex;
EmulatedFakeCamera2 *mParent;
Buffers *mBuffers;
nsecs_t mCaptureTime;
StreamBuffer mJpegBuffer, mAuxBuffer;
bool mFoundJpeg, mFoundAux;
jpeg_compress_struct mCInfo;
struct JpegError : public jpeg_error_mgr {
JpegCompressor *parent;
};
j_common_ptr mJpegErrorInfo;
struct JpegDestination : public jpeg_destination_mgr {
JpegCompressor *parent;
};
static void jpegErrorHandler(j_common_ptr cinfo);
static void jpegInitDestination(j_compress_ptr cinfo);
static boolean jpegEmptyOutputBuffer(j_compress_ptr cinfo);
static void jpegTermDestination(j_compress_ptr cinfo);
bool checkError(const char *msg);
void cleanUp();
/**
* Inherited Thread virtual overrides
*/
private:
virtual status_t readyToRun();
virtual bool threadLoop();
};
} // namespace android
#endif
|