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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_BURST_CAPTURE_H
     18 #define ANDROID_SERVERS_CAMERA_BURST_CAPTURE_H
     19 
     20 #include <camera/CameraMetadata.h>
     21 #include <binder/MemoryBase.h>
     22 #include <binder/MemoryHeapBase.h>
     23 #include <gui/CpuConsumer.h>
     24 
     25 #include "device2/Camera2Device.h"
     26 
     27 namespace android {
     28 
     29 class Camera2Client;
     30 
     31 namespace camera2 {
     32 
     33 class CaptureSequencer;
     34 
     35 class BurstCapture : public virtual Thread,
     36                      public virtual CpuConsumer::FrameAvailableListener
     37 {
     38 public:
     39     BurstCapture(wp<Camera2Client> client, wp<CaptureSequencer> sequencer);
     40     virtual ~BurstCapture();
     41 
     42     virtual void onFrameAvailable();
     43     virtual status_t start(Vector<CameraMetadata> &metadatas, int32_t firstCaptureId);
     44 
     45 protected:
     46     Mutex mInputMutex;
     47     bool mInputChanged;
     48     Condition mInputSignal;
     49     int mCaptureStreamId;
     50     wp<Camera2Client> mClient;
     51     wp<CaptureSequencer> mSequencer;
     52 
     53     // Should only be accessed by processing thread
     54     enum {
     55         NO_STREAM = -1
     56     };
     57 
     58     CpuConsumer::LockedBuffer* jpegEncode(
     59         CpuConsumer::LockedBuffer *imgBuffer,
     60         int quality);
     61 
     62     virtual status_t processFrameAvailable(sp<Camera2Client> &client);
     63 
     64 private:
     65     virtual bool threadLoop();
     66     static const nsecs_t kWaitDuration = 10000000; // 10 ms
     67 };
     68 
     69 } // namespace camera2
     70 } // namespace android
     71 
     72 #endif
     73