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 31namespace android { 32 33struct IMediaHTTPService; 34class IMediaPlayerService; 35class MemoryDealer; 36 37class MetadataRetrieverClient : public BnMediaMetadataRetriever 38{ 39public: 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 59private: 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