JpegProcessor.h revision b0fdc1ed2182fe851ef7ca98a1b4a552b53b3033 
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
29namespace android {
30
31class Camera2Client;
32class CameraDeviceBase;
33class MemoryHeapBase;
34
35namespace camera2 {
36
37class CaptureSequencer;
38struct Parameters;
39
40/***
41 * Still image capture output image processing
42 */
43class JpegProcessor:
44            public Thread, public CpuConsumer::FrameAvailableListener,
45            public camera3::Camera3StreamBufferListener {
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    // Camera3StreamBufferListener implementation
54    void onBufferAcquired(const BufferInfo& bufferInfo) override;
55    void onBufferReleased(const BufferInfo& bufferInfo) override;
56
57    status_t updateStream(const Parameters &params);
58    status_t deleteStream();
59    int getStreamId() const;
60
61    void dump(int fd, const Vector<String16>& args) const;
62  private:
63    static const nsecs_t kWaitDuration = 10000000; // 10 ms
64    wp<CameraDeviceBase> mDevice;
65    wp<CaptureSequencer> mSequencer;
66    int mId;
67
68    mutable Mutex mInputMutex;
69    bool mCaptureDone;
70    bool mCaptureSuccess;
71    Condition mCaptureDoneSignal;
72
73    enum {
74        NO_STREAM = -1
75    };
76
77    int mCaptureStreamId;
78    sp<CpuConsumer>    mCaptureConsumer;
79    sp<Surface>        mCaptureWindow;
80    sp<MemoryHeapBase> mCaptureHeap;
81
82    virtual bool threadLoop();
83
84    status_t processNewCapture(bool captureSuccess);
85    size_t findJpegSize(uint8_t* jpegBuffer, size_t maxSize);
86
87};
88
89
90}; //namespace camera2
91}; //namespace android
92
93#endif
94