1 /* 2 ** 3 ** Copyright 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 #include <stdint.h> 19 #include <sys/types.h> 20 21 #include <binder/Parcel.h> 22 #include <binder/IMemory.h> 23 #include <media/IMediaCodecList.h> 24 #include <media/IMediaHTTPService.h> 25 #include <media/IMediaPlayerService.h> 26 #include <media/IMediaPlayer.h> 27 #include <media/IMediaRecorder.h> 28 #include <media/IOMX.h> 29 #include <media/IRemoteDisplay.h> 30 #include <media/IRemoteDisplayClient.h> 31 #include <media/IStreamSource.h> 32 33 #include <utils/Errors.h> // for status_t 34 #include <utils/String8.h> 35 36 namespace android { 37 38 enum { 39 CREATE = IBinder::FIRST_CALL_TRANSACTION, 40 CREATE_MEDIA_RECORDER, 41 CREATE_METADATA_RETRIEVER, 42 ADD_BATTERY_DATA, 43 PULL_BATTERY_DATA, 44 LISTEN_FOR_REMOTE_DISPLAY, 45 GET_CODEC_LIST, 46 }; 47 48 class BpMediaPlayerService: public BpInterface<IMediaPlayerService> 49 { 50 public: 51 explicit BpMediaPlayerService(const sp<IBinder>& impl) 52 : BpInterface<IMediaPlayerService>(impl) 53 { 54 } 55 56 virtual sp<IMediaMetadataRetriever> createMetadataRetriever() 57 { 58 Parcel data, reply; 59 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 60 remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply); 61 return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder()); 62 } 63 64 virtual sp<IMediaPlayer> create( 65 const sp<IMediaPlayerClient>& client, audio_session_t audioSessionId) { 66 Parcel data, reply; 67 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 68 data.writeStrongBinder(IInterface::asBinder(client)); 69 data.writeInt32(audioSessionId); 70 71 remote()->transact(CREATE, data, &reply); 72 return interface_cast<IMediaPlayer>(reply.readStrongBinder()); 73 } 74 75 virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName) 76 { 77 Parcel data, reply; 78 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 79 data.writeString16(opPackageName); 80 remote()->transact(CREATE_MEDIA_RECORDER, data, &reply); 81 return interface_cast<IMediaRecorder>(reply.readStrongBinder()); 82 } 83 84 virtual void addBatteryData(uint32_t params) { 85 Parcel data, reply; 86 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 87 data.writeInt32(params); 88 remote()->transact(ADD_BATTERY_DATA, data, &reply); 89 } 90 91 virtual status_t pullBatteryData(Parcel* reply) { 92 Parcel data; 93 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 94 return remote()->transact(PULL_BATTERY_DATA, data, reply); 95 } 96 97 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName, 98 const sp<IRemoteDisplayClient>& client, const String8& iface) 99 { 100 Parcel data, reply; 101 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 102 data.writeString16(opPackageName); 103 data.writeStrongBinder(IInterface::asBinder(client)); 104 data.writeString8(iface); 105 remote()->transact(LISTEN_FOR_REMOTE_DISPLAY, data, &reply); 106 return interface_cast<IRemoteDisplay>(reply.readStrongBinder()); 107 } 108 109 virtual sp<IMediaCodecList> getCodecList() const { 110 Parcel data, reply; 111 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 112 remote()->transact(GET_CODEC_LIST, data, &reply); 113 return interface_cast<IMediaCodecList>(reply.readStrongBinder()); 114 } 115 }; 116 117 IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService"); 118 119 // ---------------------------------------------------------------------- 120 121 status_t BnMediaPlayerService::onTransact( 122 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 123 { 124 switch (code) { 125 case CREATE: { 126 CHECK_INTERFACE(IMediaPlayerService, data, reply); 127 sp<IMediaPlayerClient> client = 128 interface_cast<IMediaPlayerClient>(data.readStrongBinder()); 129 audio_session_t audioSessionId = (audio_session_t) data.readInt32(); 130 sp<IMediaPlayer> player = create(client, audioSessionId); 131 reply->writeStrongBinder(IInterface::asBinder(player)); 132 return NO_ERROR; 133 } break; 134 case CREATE_MEDIA_RECORDER: { 135 CHECK_INTERFACE(IMediaPlayerService, data, reply); 136 const String16 opPackageName = data.readString16(); 137 sp<IMediaRecorder> recorder = createMediaRecorder(opPackageName); 138 reply->writeStrongBinder(IInterface::asBinder(recorder)); 139 return NO_ERROR; 140 } break; 141 case CREATE_METADATA_RETRIEVER: { 142 CHECK_INTERFACE(IMediaPlayerService, data, reply); 143 sp<IMediaMetadataRetriever> retriever = createMetadataRetriever(); 144 reply->writeStrongBinder(IInterface::asBinder(retriever)); 145 return NO_ERROR; 146 } break; 147 case ADD_BATTERY_DATA: { 148 CHECK_INTERFACE(IMediaPlayerService, data, reply); 149 uint32_t params = data.readInt32(); 150 addBatteryData(params); 151 return NO_ERROR; 152 } break; 153 case PULL_BATTERY_DATA: { 154 CHECK_INTERFACE(IMediaPlayerService, data, reply); 155 pullBatteryData(reply); 156 return NO_ERROR; 157 } break; 158 case LISTEN_FOR_REMOTE_DISPLAY: { 159 CHECK_INTERFACE(IMediaPlayerService, data, reply); 160 const String16 opPackageName = data.readString16(); 161 sp<IRemoteDisplayClient> client( 162 interface_cast<IRemoteDisplayClient>(data.readStrongBinder())); 163 if (client == NULL) { 164 reply->writeStrongBinder(NULL); 165 return NO_ERROR; 166 } 167 String8 iface(data.readString8()); 168 sp<IRemoteDisplay> display(listenForRemoteDisplay(opPackageName, client, iface)); 169 reply->writeStrongBinder(IInterface::asBinder(display)); 170 return NO_ERROR; 171 } break; 172 case GET_CODEC_LIST: { 173 CHECK_INTERFACE(IMediaPlayerService, data, reply); 174 sp<IMediaCodecList> mcl = getCodecList(); 175 reply->writeStrongBinder(IInterface::asBinder(mcl)); 176 return NO_ERROR; 177 } break; 178 default: 179 return BBinder::onTransact(code, data, reply, flags); 180 } 181 } 182 183 // ---------------------------------------------------------------------------- 184 185 } // namespace android 186
