1 /* 2 ** 3 ** Copyright (C) 2008 The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #ifndef ANDROID_MEDIAMETADATARETRIEVERSERVICE_H 19 #define ANDROID_MEDIAMETADATARETRIEVERSERVICE_H 20 21 #include <utils/Log.h> 22 #include <utils/threads.h> 23 #include <utils/List.h> 24 #include <utils/Errors.h> 25 #include <utils/KeyedVector.h> 26 #include <binder/IMemory.h> 27 28 #include <media/MediaMetadataRetrieverInterface.h> 29 30 31 namespace android { 32 33 struct IMediaHTTPService; 34 class IMediaPlayerService; 35 class MemoryDealer; 36 37 class MetadataRetrieverClient : public BnMediaMetadataRetriever 38 { 39 public: 40 MetadataRetrieverClient(const sp<IMediaPlayerService>& service, pid_t pid, int32_t connId); 41 42 // Implements IMediaMetadataRetriever interface 43 // These methods are called in IMediaMetadataRetriever.cpp? 44 virtual void disconnect(); 45 46 virtual status_t setDataSource( 47 const sp<IMediaHTTPService> &httpService, 48 const char *url, 49 const KeyedVector<String8, String8> *headers); 50 51 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 52 virtual status_t setDataSource(const sp<IDataSource>& source); 53 virtual sp<IMemory> getFrameAtTime(int64_t timeUs, int option); 54 virtual sp<IMemory> extractAlbumArt(); 55 virtual const char* extractMetadata(int keyCode); 56 57 virtual status_t dump(int fd, const Vector<String16>& args); 58 59 private: 60 friend class MediaPlayerService; 61 62 explicit MetadataRetrieverClient(pid_t pid); 63 virtual ~MetadataRetrieverClient(); 64 65 mutable Mutex mLock; 66 static Mutex sLock; 67 sp<MediaMetadataRetrieverBase> mRetriever; 68 pid_t mPid; 69 70 // Keep the shared memory copy of album art and capture frame (for thumbnail) 71 sp<IMemory> mAlbumArt; 72 sp<IMemory> mThumbnail; 73 }; 74 75 }; // namespace android 76 77 #endif // ANDROID_MEDIAMETADATARETRIEVERSERVICE_H 78 79
