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 class IMediaPlayerService; 34 class MemoryDealer; 35 36 class MetadataRetrieverClient : public BnMediaMetadataRetriever 37 { 38 public: 39 MetadataRetrieverClient(const sp<IMediaPlayerService>& service, pid_t pid, int32_t connId); 40 41 // Implements IMediaMetadataRetriever interface 42 // These methods are called in IMediaMetadataRetriever.cpp? 43 virtual void disconnect(); 44 45 virtual status_t setDataSource( 46 const char *url, const KeyedVector<String8, String8> *headers); 47 48 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 49 virtual sp<IMemory> getFrameAtTime(int64_t timeUs, int option); 50 virtual sp<IMemory> extractAlbumArt(); 51 virtual const char* extractMetadata(int keyCode); 52 53 virtual status_t dump(int fd, const Vector<String16>& args) const; 54 55 private: 56 friend class MediaPlayerService; 57 58 explicit MetadataRetrieverClient(pid_t pid); 59 virtual ~MetadataRetrieverClient(); 60 61 mutable Mutex mLock; 62 sp<MediaMetadataRetrieverBase> mRetriever; 63 pid_t mPid; 64 65 // Keep the shared memory copy of album art and capture frame (for thumbnail) 66 sp<IMemory> mAlbumArt; 67 sp<IMemory> mThumbnail; 68 }; 69 70 }; // namespace android 71 72 #endif // ANDROID_MEDIAMETADATARETRIEVERSERVICE_H 73 74