MetadataRetrieverClient.h revision 7b5eb023f8d87cca6d830ae6c11c6aadbe02aca8
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.h> 22#include <utils/KeyedVector.h> 23#include <utils/IMemory.h> 24 25#include <media/MediaMetadataRetrieverInterface.h> 26 27 28namespace android { 29 30class IMediaPlayerService; 31class MemoryDealer; 32 33class MetadataRetrieverClient : public BnMediaMetadataRetriever 34{ 35public: 36 MetadataRetrieverClient(const sp<IMediaPlayerService>& service, pid_t pid, int32_t connId); 37 38 // Implements IMediaMetadataRetriever interface 39 // These methods are called in IMediaMetadataRetriever.cpp? 40 virtual void disconnect(); 41 virtual status_t setDataSource(const char *url); 42 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 43 virtual status_t setMode(int mode); 44 virtual status_t getMode(int* mode) const; 45 virtual sp<IMemory> captureFrame(); 46 virtual sp<IMemory> extractAlbumArt(); 47 virtual const char* extractMetadata(int keyCode); 48 49 virtual status_t dump(int fd, const Vector<String16>& args) const; 50 51private: 52 friend class MediaPlayerService; 53 54 explicit MetadataRetrieverClient(pid_t pid); 55 virtual ~MetadataRetrieverClient(); 56 57 mutable Mutex mLock; 58 sp<MediaMetadataRetrieverBase> mRetriever; 59 pid_t mPid; 60 61 // Keep the shared memory copy of album art and capture frame (for thumbnail) 62 sp<MemoryDealer> mAlbumArtDealer; 63 sp<MemoryDealer> mThumbnailDealer; 64 sp<IMemory> mAlbumArt; 65 sp<IMemory> mThumbnail; 66}; 67 68}; // namespace android 69 70#endif // ANDROID_MEDIAMETADATARETRIEVERSERVICE_H 71 72