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_CALLBACKPROCESSOR_H 18 #define ANDROID_SERVERS_CAMERA_CAMERA2_CALLBACKPROCESSOR_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 "camera/CameraMetadata.h" 28 #include "Camera2Heap.h" 29 30 namespace android { 31 32 class Camera2Client; 33 class CameraDeviceBase; 34 35 namespace camera2 { 36 37 /*** 38 * Still image capture output image processing 39 */ 40 class CallbackProcessor: 41 public Thread, public CpuConsumer::FrameAvailableListener { 42 public: 43 CallbackProcessor(sp<Camera2Client> client); 44 ~CallbackProcessor(); 45 46 void onFrameAvailable(); 47 48 status_t updateStream(const Parameters ¶ms); 49 status_t deleteStream(); 50 int getStreamId() const; 51 52 void dump(int fd, const Vector<String16>& args) const; 53 private: 54 static const nsecs_t kWaitDuration = 10000000; // 10 ms 55 wp<Camera2Client> mClient; 56 wp<CameraDeviceBase> mDevice; 57 int mId; 58 59 mutable Mutex mInputMutex; 60 bool mCallbackAvailable; 61 Condition mCallbackAvailableSignal; 62 63 enum { 64 NO_STREAM = -1 65 }; 66 67 int mCallbackStreamId; 68 static const size_t kCallbackHeapCount = 6; 69 sp<CpuConsumer> mCallbackConsumer; 70 sp<ANativeWindow> mCallbackWindow; 71 sp<Camera2Heap> mCallbackHeap; 72 int mCallbackHeapId; 73 size_t mCallbackHeapHead, mCallbackHeapFree; 74 75 virtual bool threadLoop(); 76 77 status_t processNewCallback(sp<Camera2Client> &client); 78 // Used when shutting down 79 status_t discardNewCallback(); 80 81 // Convert from flexible YUV to NV21 or YV12 82 status_t convertFromFlexibleYuv(int32_t previewFormat, 83 uint8_t *dst, 84 const CpuConsumer::LockedBuffer &src, 85 uint32_t dstYStride, 86 uint32_t dstCStride) const; 87 }; 88 89 90 }; //namespace camera2 91 }; //namespace android 92 93 #endif 94