1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ANDROID_SERVERS_CAMERA_CAMERA2_JPEGPROCESSOR_H
18 #define ANDROID_SERVERS_CAMERA_CAMERA2_JPEGPROCESSOR_H
19 
20 #include <utils/Thread.h>
21 #include <utils/String16.h>
22 #include <utils/Vector.h>
23 #include <utils/Mutex.h>
24 #include <utils/Condition.h>
25 #include <gui/CpuConsumer.h>
26 
27 #include "camera/CameraMetadata.h"
28 #include "device3/Camera3StreamBufferListener.h"
29 
30 namespace android {
31 
32 class Camera2Client;
33 class CameraDeviceBase;
34 class MemoryHeapBase;
35 
36 namespace camera2 {
37 
38 class CaptureSequencer;
39 struct Parameters;
40 
41 /***
42  * Still image capture output image processing
43  */
44 class JpegProcessor:
45             public Thread, public CpuConsumer::FrameAvailableListener {
46   public:
47     JpegProcessor(sp<Camera2Client> client, wp<CaptureSequencer> sequencer);
48     ~JpegProcessor();
49 
50     // CpuConsumer listener implementation
51     void onFrameAvailable(const BufferItem& item);
52 
53     status_t updateStream(const Parameters &params);
54     status_t deleteStream();
55     int getStreamId() const;
56 
57     void dump(int fd, const Vector<String16>& args) const;
58 
59     static size_t findJpegSize(uint8_t* jpegBuffer, size_t maxSize);
60 
61   private:
62     static const nsecs_t kWaitDuration = 10000000; // 10 ms
63     wp<CameraDeviceBase> mDevice;
64     wp<CaptureSequencer> mSequencer;
65     int mId;
66 
67     mutable Mutex mInputMutex;
68     bool mCaptureDone;
69     bool mCaptureSuccess;
70     Condition mCaptureDoneSignal;
71 
72     enum {
73         NO_STREAM = -1
74     };
75 
76     int mCaptureStreamId;
77     sp<CpuConsumer>    mCaptureConsumer;
78     sp<Surface>        mCaptureWindow;
79     sp<MemoryHeapBase> mCaptureHeap;
80 
81     virtual bool threadLoop();
82 
83     status_t processNewCapture(bool captureSuccess);
84 
85 };
86 
87 
88 }; //namespace camera2
89 }; //namespace android
90 
91 #endif
92