1 /* 2 ** 3 ** Copyright 2012, 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_MEDIAPLAYERFACTORY_H 19 #define ANDROID_MEDIAPLAYERFACTORY_H 20 21 #include <media/MediaPlayerInterface.h> 22 #include <media/stagefright/foundation/ABase.h> 23 24 namespace android { 25 26 class MediaPlayerFactory { 27 public: 28 class IFactory { 29 public: ~IFactory()30 virtual ~IFactory() { } 31 scoreFactory(const sp<IMediaPlayer> &,const char *,float)32 virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/, 33 const char* /*url*/, 34 float /*curScore*/) { return 0.0; } 35 scoreFactory(const sp<IMediaPlayer> &,int,int64_t,int64_t,float)36 virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/, 37 int /*fd*/, 38 int64_t /*offset*/, 39 int64_t /*length*/, 40 float /*curScore*/) { return 0.0; } 41 scoreFactory(const sp<IMediaPlayer> &,const sp<IStreamSource> &,float)42 virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/, 43 const sp<IStreamSource> &/*source*/, 44 float /*curScore*/) { return 0.0; } 45 scoreFactory(const sp<IMediaPlayer> &,const sp<DataSource> &,float)46 virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/, 47 const sp<DataSource> &/*source*/, 48 float /*curScore*/) { return 0.0; } 49 50 virtual sp<MediaPlayerBase> createPlayer(pid_t pid) = 0; 51 }; 52 53 static status_t registerFactory(IFactory* factory, 54 player_type type); 55 static void unregisterFactory(player_type type); 56 static player_type getPlayerType(const sp<IMediaPlayer>& client, 57 const char* url); 58 static player_type getPlayerType(const sp<IMediaPlayer>& client, 59 int fd, 60 int64_t offset, 61 int64_t length); 62 static player_type getPlayerType(const sp<IMediaPlayer>& client, 63 const sp<IStreamSource> &source); 64 static player_type getPlayerType(const sp<IMediaPlayer>& client, 65 const sp<DataSource> &source); 66 67 static sp<MediaPlayerBase> createPlayer(player_type playerType, 68 const sp<MediaPlayerBase::Listener> &listener, 69 pid_t pid); 70 71 static void registerBuiltinFactories(); 72 73 private: 74 typedef KeyedVector<player_type, IFactory*> tFactoryMap; 75 MediaPlayerFactory()76 MediaPlayerFactory() { } 77 78 static status_t registerFactory_l(IFactory* factory, 79 player_type type); 80 81 static Mutex sLock; 82 static tFactoryMap sFactoryMap; 83 static bool sInitComplete; 84 85 DISALLOW_EVIL_CONSTRUCTORS(MediaPlayerFactory); 86 }; 87 88 } // namespace android 89 #endif // ANDROID_MEDIAPLAYERFACTORY_H 90