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/ICrypto.h> 24 #include <media/IDrm.h> 25 #include <media/IHDCP.h> 26 #include <media/IMediaPlayerService.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 DECODE_URL, 41 DECODE_FD, 42 CREATE_MEDIA_RECORDER, 43 CREATE_METADATA_RETRIEVER, 44 GET_OMX, 45 MAKE_CRYPTO, 46 MAKE_DRM, 47 MAKE_HDCP, 48 ADD_BATTERY_DATA, 49 PULL_BATTERY_DATA, 50 LISTEN_FOR_REMOTE_DISPLAY, 51 UPDATE_PROXY_CONFIG, 52 }; 53 54 class BpMediaPlayerService: public BpInterface<IMediaPlayerService> 55 { 56 public: 57 BpMediaPlayerService(const sp<IBinder>& impl) 58 : BpInterface<IMediaPlayerService>(impl) 59 { 60 } 61 62 virtual sp<IMediaMetadataRetriever> createMetadataRetriever() 63 { 64 Parcel data, reply; 65 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 66 remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply); 67 return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder()); 68 } 69 70 virtual sp<IMediaPlayer> create( 71 const sp<IMediaPlayerClient>& client, int audioSessionId) { 72 Parcel data, reply; 73 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 74 data.writeStrongBinder(client->asBinder()); 75 data.writeInt32(audioSessionId); 76 77 remote()->transact(CREATE, data, &reply); 78 return interface_cast<IMediaPlayer>(reply.readStrongBinder()); 79 } 80 81 virtual sp<IMediaRecorder> createMediaRecorder() 82 { 83 Parcel data, reply; 84 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 85 remote()->transact(CREATE_MEDIA_RECORDER, data, &reply); 86 return interface_cast<IMediaRecorder>(reply.readStrongBinder()); 87 } 88 89 virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) 90 { 91 Parcel data, reply; 92 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 93 data.writeCString(url); 94 remote()->transact(DECODE_URL, data, &reply); 95 *pSampleRate = uint32_t(reply.readInt32()); 96 *pNumChannels = reply.readInt32(); 97 *pFormat = (audio_format_t) reply.readInt32(); 98 return interface_cast<IMemory>(reply.readStrongBinder()); 99 } 100 101 virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) 102 { 103 Parcel data, reply; 104 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 105 data.writeFileDescriptor(fd); 106 data.writeInt64(offset); 107 data.writeInt64(length); 108 remote()->transact(DECODE_FD, data, &reply); 109 *pSampleRate = uint32_t(reply.readInt32()); 110 *pNumChannels = reply.readInt32(); 111 *pFormat = (audio_format_t) reply.readInt32(); 112 return interface_cast<IMemory>(reply.readStrongBinder()); 113 } 114 115 virtual sp<IOMX> getOMX() { 116 Parcel data, reply; 117 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 118 remote()->transact(GET_OMX, data, &reply); 119 return interface_cast<IOMX>(reply.readStrongBinder()); 120 } 121 122 virtual sp<ICrypto> makeCrypto() { 123 Parcel data, reply; 124 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 125 remote()->transact(MAKE_CRYPTO, data, &reply); 126 return interface_cast<ICrypto>(reply.readStrongBinder()); 127 } 128 129 virtual sp<IDrm> makeDrm() { 130 Parcel data, reply; 131 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 132 remote()->transact(MAKE_DRM, data, &reply); 133 return interface_cast<IDrm>(reply.readStrongBinder()); 134 } 135 136 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule) { 137 Parcel data, reply; 138 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 139 data.writeInt32(createEncryptionModule); 140 remote()->transact(MAKE_HDCP, data, &reply); 141 return interface_cast<IHDCP>(reply.readStrongBinder()); 142 } 143 144 virtual void addBatteryData(uint32_t params) { 145 Parcel data, reply; 146 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 147 data.writeInt32(params); 148 remote()->transact(ADD_BATTERY_DATA, data, &reply); 149 } 150 151 virtual status_t pullBatteryData(Parcel* reply) { 152 Parcel data; 153 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 154 return remote()->transact(PULL_BATTERY_DATA, data, reply); 155 } 156 157 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client, 158 const String8& iface) 159 { 160 Parcel data, reply; 161 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 162 data.writeStrongBinder(client->asBinder()); 163 data.writeString8(iface); 164 remote()->transact(LISTEN_FOR_REMOTE_DISPLAY, data, &reply); 165 return interface_cast<IRemoteDisplay>(reply.readStrongBinder()); 166 } 167 168 virtual status_t updateProxyConfig( 169 const char *host, int32_t port, const char *exclusionList) { 170 Parcel data, reply; 171 172 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 173 if (host == NULL) { 174 data.writeInt32(0); 175 } else { 176 data.writeInt32(1); 177 data.writeCString(host); 178 data.writeInt32(port); 179 data.writeCString(exclusionList); 180 } 181 182 remote()->transact(UPDATE_PROXY_CONFIG, data, &reply); 183 184 return reply.readInt32(); 185 } 186 }; 187 188 IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService"); 189 190 // ---------------------------------------------------------------------- 191 192 status_t BnMediaPlayerService::onTransact( 193 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 194 { 195 switch (code) { 196 case CREATE: { 197 CHECK_INTERFACE(IMediaPlayerService, data, reply); 198 sp<IMediaPlayerClient> client = 199 interface_cast<IMediaPlayerClient>(data.readStrongBinder()); 200 int audioSessionId = data.readInt32(); 201 sp<IMediaPlayer> player = create(client, audioSessionId); 202 reply->writeStrongBinder(player->asBinder()); 203 return NO_ERROR; 204 } break; 205 case DECODE_URL: { 206 CHECK_INTERFACE(IMediaPlayerService, data, reply); 207 const char* url = data.readCString(); 208 uint32_t sampleRate; 209 int numChannels; 210 audio_format_t format; 211 sp<IMemory> player = decode(url, &sampleRate, &numChannels, &format); 212 reply->writeInt32(sampleRate); 213 reply->writeInt32(numChannels); 214 reply->writeInt32((int32_t) format); 215 reply->writeStrongBinder(player->asBinder()); 216 return NO_ERROR; 217 } break; 218 case DECODE_FD: { 219 CHECK_INTERFACE(IMediaPlayerService, data, reply); 220 int fd = dup(data.readFileDescriptor()); 221 int64_t offset = data.readInt64(); 222 int64_t length = data.readInt64(); 223 uint32_t sampleRate; 224 int numChannels; 225 audio_format_t format; 226 sp<IMemory> player = decode(fd, offset, length, &sampleRate, &numChannels, &format); 227 reply->writeInt32(sampleRate); 228 reply->writeInt32(numChannels); 229 reply->writeInt32((int32_t) format); 230 reply->writeStrongBinder(player->asBinder()); 231 return NO_ERROR; 232 } break; 233 case CREATE_MEDIA_RECORDER: { 234 CHECK_INTERFACE(IMediaPlayerService, data, reply); 235 sp<IMediaRecorder> recorder = createMediaRecorder(); 236 reply->writeStrongBinder(recorder->asBinder()); 237 return NO_ERROR; 238 } break; 239 case CREATE_METADATA_RETRIEVER: { 240 CHECK_INTERFACE(IMediaPlayerService, data, reply); 241 sp<IMediaMetadataRetriever> retriever = createMetadataRetriever(); 242 reply->writeStrongBinder(retriever->asBinder()); 243 return NO_ERROR; 244 } break; 245 case GET_OMX: { 246 CHECK_INTERFACE(IMediaPlayerService, data, reply); 247 sp<IOMX> omx = getOMX(); 248 reply->writeStrongBinder(omx->asBinder()); 249 return NO_ERROR; 250 } break; 251 case MAKE_CRYPTO: { 252 CHECK_INTERFACE(IMediaPlayerService, data, reply); 253 sp<ICrypto> crypto = makeCrypto(); 254 reply->writeStrongBinder(crypto->asBinder()); 255 return NO_ERROR; 256 } break; 257 case MAKE_DRM: { 258 CHECK_INTERFACE(IMediaPlayerService, data, reply); 259 sp<IDrm> drm = makeDrm(); 260 reply->writeStrongBinder(drm->asBinder()); 261 return NO_ERROR; 262 } break; 263 case MAKE_HDCP: { 264 CHECK_INTERFACE(IMediaPlayerService, data, reply); 265 bool createEncryptionModule = data.readInt32(); 266 sp<IHDCP> hdcp = makeHDCP(createEncryptionModule); 267 reply->writeStrongBinder(hdcp->asBinder()); 268 return NO_ERROR; 269 } break; 270 case ADD_BATTERY_DATA: { 271 CHECK_INTERFACE(IMediaPlayerService, data, reply); 272 uint32_t params = data.readInt32(); 273 addBatteryData(params); 274 return NO_ERROR; 275 } break; 276 case PULL_BATTERY_DATA: { 277 CHECK_INTERFACE(IMediaPlayerService, data, reply); 278 pullBatteryData(reply); 279 return NO_ERROR; 280 } break; 281 case LISTEN_FOR_REMOTE_DISPLAY: { 282 CHECK_INTERFACE(IMediaPlayerService, data, reply); 283 sp<IRemoteDisplayClient> client( 284 interface_cast<IRemoteDisplayClient>(data.readStrongBinder())); 285 String8 iface(data.readString8()); 286 sp<IRemoteDisplay> display(listenForRemoteDisplay(client, iface)); 287 reply->writeStrongBinder(display->asBinder()); 288 return NO_ERROR; 289 } break; 290 case UPDATE_PROXY_CONFIG: 291 { 292 CHECK_INTERFACE(IMediaPlayerService, data, reply); 293 294 const char *host = NULL; 295 int32_t port = 0; 296 const char *exclusionList = NULL; 297 298 if (data.readInt32()) { 299 host = data.readCString(); 300 port = data.readInt32(); 301 exclusionList = data.readCString(); 302 } 303 304 reply->writeInt32(updateProxyConfig(host, port, exclusionList)); 305 306 return OK; 307 } 308 default: 309 return BBinder::onTransact(code, data, reply, flags); 310 } 311 } 312 313 // ---------------------------------------------------------------------------- 314 315 }; // namespace android 316
