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                                             void* cookie,
69                                             notify_callback_f notifyFunc,
70                                             pid_t pid);
71 
72     static void registerBuiltinFactories();
73 
74   private:
75     typedef KeyedVector<player_type, IFactory*> tFactoryMap;
76 
MediaPlayerFactory()77     MediaPlayerFactory() { }
78 
79     static status_t registerFactory_l(IFactory* factory,
80                                       player_type type);
81 
82     static Mutex       sLock;
83     static tFactoryMap sFactoryMap;
84     static bool        sInitComplete;
85 
86     DISALLOW_EVIL_CONSTRUCTORS(MediaPlayerFactory);
87 };
88 
89 }  // namespace android
90 #endif  // ANDROID_MEDIAPLAYERFACTORY_H
91