1 /* 2 * Copyright (C) 2009 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 CAMERA_SOURCE_H_ 18 19 #define CAMERA_SOURCE_H_ 20 21 #include <media/stagefright/MediaBuffer.h> 22 #include <media/stagefright/MediaSource.h> 23 #include <utils/List.h> 24 #include <utils/RefBase.h> 25 #include <utils/threads.h> 26 27 namespace android { 28 29 class ICamera; 30 class ICameraClient; 31 class IMemory; 32 33 class CameraSource : public MediaSource, 34 public MediaBufferObserver { 35 public: 36 static CameraSource *Create(); 37 38 virtual ~CameraSource(); 39 40 virtual status_t start(MetaData *params = NULL); 41 virtual status_t stop(); 42 43 virtual sp<MetaData> getFormat(); 44 45 virtual status_t read( 46 MediaBuffer **buffer, const ReadOptions *options = NULL); 47 48 virtual void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2); 49 virtual void dataCallback(int32_t msgType, const sp<IMemory>& data); 50 51 virtual void signalBufferReturned(MediaBuffer *buffer); 52 53 private: 54 CameraSource(const sp<ICamera> &camera, const sp<ICameraClient> &client); 55 56 sp<ICamera> mCamera; 57 sp<ICameraClient> mCameraClient; 58 59 Mutex mLock; 60 Condition mFrameAvailableCondition; 61 List<sp<IMemory> > mFrames; 62 63 int mNumFrames; 64 bool mStarted; 65 66 CameraSource(const CameraSource &); 67 CameraSource &operator=(const CameraSource &); 68 }; 69 70 } // namespace android 71 72 #endif // CAMERA_SOURCE_H_ 73