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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 #include "Parameters.h"
27 #include "CameraMetadata.h"
28 
29 namespace android {
30 
31 class Camera2Client;
32 class MemoryHeapBase;
33 
34 namespace camera2 {
35 
36 class CaptureSequencer;
37 
38 /***
39  * Still image capture output image processing
40  */
41 class JpegProcessor:
42             public Thread, public CpuConsumer::FrameAvailableListener {
43   public:
44     JpegProcessor(wp<Camera2Client> client, wp<CaptureSequencer> sequencer);
45     ~JpegProcessor();
46 
47     void onFrameAvailable();
48 
49     status_t updateStream(const Parameters &params);
50     status_t deleteStream();
51     int getStreamId() const;
52 
53     void dump(int fd, const Vector<String16>& args) const;
54   private:
55     static const nsecs_t kWaitDuration = 10000000; // 10 ms
56     wp<Camera2Client> mClient;
57     wp<CaptureSequencer> mSequencer;
58 
59     mutable Mutex mInputMutex;
60     bool mCaptureAvailable;
61     Condition mCaptureAvailableSignal;
62 
63     enum {
64         NO_STREAM = -1
65     };
66 
67     int mCaptureStreamId;
68     sp<CpuConsumer>    mCaptureConsumer;
69     sp<ANativeWindow>  mCaptureWindow;
70     sp<MemoryHeapBase>    mCaptureHeap;
71 
72     virtual bool threadLoop();
73 
74     status_t processNewCapture(sp<Camera2Client> &client);
75     size_t findJpegSize(uint8_t* jpegBuffer, size_t maxSize);
76 
77 };
78 
79 
80 }; //namespace camera2
81 }; //namespace android
82 
83 #endif
84