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 33class IMediaPlayerService; 34class MemoryDealer; 35 36class MetadataRetrieverClient : public BnMediaMetadataRetriever 37{ 38public: 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 55private: 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