1 /* 2 ** 3 ** Copyright 2007, 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 #define LOG_TAG "IAudioFlinger" 19 //#define LOG_NDEBUG 0 20 #include <utils/Log.h> 21 22 #include <stdint.h> 23 #include <sys/types.h> 24 25 #include <binder/Parcel.h> 26 27 #include <media/IAudioFlinger.h> 28 29 namespace android { 30 31 enum { 32 CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION, 33 OPEN_RECORD, 34 SAMPLE_RATE, 35 CHANNEL_COUNT, // obsolete 36 FORMAT, 37 FRAME_COUNT, 38 LATENCY, 39 SET_MASTER_VOLUME, 40 SET_MASTER_MUTE, 41 MASTER_VOLUME, 42 MASTER_MUTE, 43 SET_STREAM_VOLUME, 44 SET_STREAM_MUTE, 45 STREAM_VOLUME, 46 STREAM_MUTE, 47 SET_MODE, 48 SET_MIC_MUTE, 49 GET_MIC_MUTE, 50 SET_PARAMETERS, 51 GET_PARAMETERS, 52 REGISTER_CLIENT, 53 GET_INPUTBUFFERSIZE, 54 OPEN_OUTPUT, 55 OPEN_DUPLICATE_OUTPUT, 56 CLOSE_OUTPUT, 57 SUSPEND_OUTPUT, 58 RESTORE_OUTPUT, 59 OPEN_INPUT, 60 CLOSE_INPUT, 61 SET_STREAM_OUTPUT, 62 SET_VOICE_VOLUME, 63 GET_RENDER_POSITION, 64 GET_INPUT_FRAMES_LOST, 65 NEW_AUDIO_SESSION_ID, 66 ACQUIRE_AUDIO_SESSION_ID, 67 RELEASE_AUDIO_SESSION_ID, 68 QUERY_NUM_EFFECTS, 69 QUERY_EFFECT, 70 GET_EFFECT_DESCRIPTOR, 71 CREATE_EFFECT, 72 MOVE_EFFECTS, 73 LOAD_HW_MODULE, 74 GET_PRIMARY_OUTPUT_SAMPLING_RATE, 75 GET_PRIMARY_OUTPUT_FRAME_COUNT, 76 }; 77 78 class BpAudioFlinger : public BpInterface<IAudioFlinger> 79 { 80 public: 81 BpAudioFlinger(const sp<IBinder>& impl) 82 : BpInterface<IAudioFlinger>(impl) 83 { 84 } 85 86 virtual sp<IAudioTrack> createTrack( 87 pid_t pid, 88 audio_stream_type_t streamType, 89 uint32_t sampleRate, 90 audio_format_t format, 91 audio_channel_mask_t channelMask, 92 int frameCount, 93 track_flags_t flags, 94 const sp<IMemory>& sharedBuffer, 95 audio_io_handle_t output, 96 pid_t tid, 97 int *sessionId, 98 status_t *status) 99 { 100 Parcel data, reply; 101 sp<IAudioTrack> track; 102 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 103 data.writeInt32(pid); 104 data.writeInt32((int32_t) streamType); 105 data.writeInt32(sampleRate); 106 data.writeInt32(format); 107 data.writeInt32(channelMask); 108 data.writeInt32(frameCount); 109 data.writeInt32((int32_t) flags); 110 data.writeStrongBinder(sharedBuffer->asBinder()); 111 data.writeInt32((int32_t) output); 112 data.writeInt32((int32_t) tid); 113 int lSessionId = 0; 114 if (sessionId != NULL) { 115 lSessionId = *sessionId; 116 } 117 data.writeInt32(lSessionId); 118 status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply); 119 if (lStatus != NO_ERROR) { 120 ALOGE("createTrack error: %s", strerror(-lStatus)); 121 } else { 122 lSessionId = reply.readInt32(); 123 if (sessionId != NULL) { 124 *sessionId = lSessionId; 125 } 126 lStatus = reply.readInt32(); 127 track = interface_cast<IAudioTrack>(reply.readStrongBinder()); 128 } 129 if (status) { 130 *status = lStatus; 131 } 132 return track; 133 } 134 135 virtual sp<IAudioRecord> openRecord( 136 pid_t pid, 137 audio_io_handle_t input, 138 uint32_t sampleRate, 139 audio_format_t format, 140 audio_channel_mask_t channelMask, 141 int frameCount, 142 track_flags_t flags, 143 pid_t tid, 144 int *sessionId, 145 status_t *status) 146 { 147 Parcel data, reply; 148 sp<IAudioRecord> record; 149 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 150 data.writeInt32(pid); 151 data.writeInt32((int32_t) input); 152 data.writeInt32(sampleRate); 153 data.writeInt32(format); 154 data.writeInt32(channelMask); 155 data.writeInt32(frameCount); 156 data.writeInt32(flags); 157 data.writeInt32((int32_t) tid); 158 int lSessionId = 0; 159 if (sessionId != NULL) { 160 lSessionId = *sessionId; 161 } 162 data.writeInt32(lSessionId); 163 status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply); 164 if (lStatus != NO_ERROR) { 165 ALOGE("openRecord error: %s", strerror(-lStatus)); 166 } else { 167 lSessionId = reply.readInt32(); 168 if (sessionId != NULL) { 169 *sessionId = lSessionId; 170 } 171 lStatus = reply.readInt32(); 172 record = interface_cast<IAudioRecord>(reply.readStrongBinder()); 173 } 174 if (status) { 175 *status = lStatus; 176 } 177 return record; 178 } 179 180 virtual uint32_t sampleRate(audio_io_handle_t output) const 181 { 182 Parcel data, reply; 183 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 184 data.writeInt32((int32_t) output); 185 remote()->transact(SAMPLE_RATE, data, &reply); 186 return reply.readInt32(); 187 } 188 189 #if 0 190 virtual int channelCount(audio_io_handle_t output) const 191 { 192 Parcel data, reply; 193 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 194 data.writeInt32((int32_t) output); 195 remote()->transact(CHANNEL_COUNT, data, &reply); 196 return reply.readInt32(); 197 } 198 #endif 199 200 virtual audio_format_t format(audio_io_handle_t output) const 201 { 202 Parcel data, reply; 203 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 204 data.writeInt32((int32_t) output); 205 remote()->transact(FORMAT, data, &reply); 206 return (audio_format_t) reply.readInt32(); 207 } 208 209 virtual size_t frameCount(audio_io_handle_t output) const 210 { 211 Parcel data, reply; 212 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 213 data.writeInt32((int32_t) output); 214 remote()->transact(FRAME_COUNT, data, &reply); 215 return reply.readInt32(); 216 } 217 218 virtual uint32_t latency(audio_io_handle_t output) const 219 { 220 Parcel data, reply; 221 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 222 data.writeInt32((int32_t) output); 223 remote()->transact(LATENCY, data, &reply); 224 return reply.readInt32(); 225 } 226 227 virtual status_t setMasterVolume(float value) 228 { 229 Parcel data, reply; 230 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 231 data.writeFloat(value); 232 remote()->transact(SET_MASTER_VOLUME, data, &reply); 233 return reply.readInt32(); 234 } 235 236 virtual status_t setMasterMute(bool muted) 237 { 238 Parcel data, reply; 239 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 240 data.writeInt32(muted); 241 remote()->transact(SET_MASTER_MUTE, data, &reply); 242 return reply.readInt32(); 243 } 244 245 virtual float masterVolume() const 246 { 247 Parcel data, reply; 248 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 249 remote()->transact(MASTER_VOLUME, data, &reply); 250 return reply.readFloat(); 251 } 252 253 virtual bool masterMute() const 254 { 255 Parcel data, reply; 256 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 257 remote()->transact(MASTER_MUTE, data, &reply); 258 return reply.readInt32(); 259 } 260 261 virtual status_t setStreamVolume(audio_stream_type_t stream, float value, 262 audio_io_handle_t output) 263 { 264 Parcel data, reply; 265 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 266 data.writeInt32((int32_t) stream); 267 data.writeFloat(value); 268 data.writeInt32((int32_t) output); 269 remote()->transact(SET_STREAM_VOLUME, data, &reply); 270 return reply.readInt32(); 271 } 272 273 virtual status_t setStreamMute(audio_stream_type_t stream, bool muted) 274 { 275 Parcel data, reply; 276 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 277 data.writeInt32((int32_t) stream); 278 data.writeInt32(muted); 279 remote()->transact(SET_STREAM_MUTE, data, &reply); 280 return reply.readInt32(); 281 } 282 283 virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const 284 { 285 Parcel data, reply; 286 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 287 data.writeInt32((int32_t) stream); 288 data.writeInt32((int32_t) output); 289 remote()->transact(STREAM_VOLUME, data, &reply); 290 return reply.readFloat(); 291 } 292 293 virtual bool streamMute(audio_stream_type_t stream) const 294 { 295 Parcel data, reply; 296 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 297 data.writeInt32((int32_t) stream); 298 remote()->transact(STREAM_MUTE, data, &reply); 299 return reply.readInt32(); 300 } 301 302 virtual status_t setMode(audio_mode_t mode) 303 { 304 Parcel data, reply; 305 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 306 data.writeInt32(mode); 307 remote()->transact(SET_MODE, data, &reply); 308 return reply.readInt32(); 309 } 310 311 virtual status_t setMicMute(bool state) 312 { 313 Parcel data, reply; 314 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 315 data.writeInt32(state); 316 remote()->transact(SET_MIC_MUTE, data, &reply); 317 return reply.readInt32(); 318 } 319 320 virtual bool getMicMute() const 321 { 322 Parcel data, reply; 323 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 324 remote()->transact(GET_MIC_MUTE, data, &reply); 325 return reply.readInt32(); 326 } 327 328 virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs) 329 { 330 Parcel data, reply; 331 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 332 data.writeInt32((int32_t) ioHandle); 333 data.writeString8(keyValuePairs); 334 remote()->transact(SET_PARAMETERS, data, &reply); 335 return reply.readInt32(); 336 } 337 338 virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const 339 { 340 Parcel data, reply; 341 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 342 data.writeInt32((int32_t) ioHandle); 343 data.writeString8(keys); 344 remote()->transact(GET_PARAMETERS, data, &reply); 345 return reply.readString8(); 346 } 347 348 virtual void registerClient(const sp<IAudioFlingerClient>& client) 349 { 350 Parcel data, reply; 351 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 352 data.writeStrongBinder(client->asBinder()); 353 remote()->transact(REGISTER_CLIENT, data, &reply); 354 } 355 356 virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 357 audio_channel_mask_t channelMask) const 358 { 359 Parcel data, reply; 360 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 361 data.writeInt32(sampleRate); 362 data.writeInt32(format); 363 data.writeInt32(channelMask); 364 remote()->transact(GET_INPUTBUFFERSIZE, data, &reply); 365 return reply.readInt32(); 366 } 367 368 virtual audio_io_handle_t openOutput(audio_module_handle_t module, 369 audio_devices_t *pDevices, 370 uint32_t *pSamplingRate, 371 audio_format_t *pFormat, 372 audio_channel_mask_t *pChannelMask, 373 uint32_t *pLatencyMs, 374 audio_output_flags_t flags) 375 { 376 Parcel data, reply; 377 audio_devices_t devices = pDevices ? *pDevices : (audio_devices_t)0; 378 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 379 audio_format_t format = pFormat ? *pFormat : AUDIO_FORMAT_DEFAULT; 380 audio_channel_mask_t channelMask = pChannelMask ? *pChannelMask : (audio_channel_mask_t)0; 381 uint32_t latency = pLatencyMs ? *pLatencyMs : 0; 382 383 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 384 data.writeInt32(module); 385 data.writeInt32(devices); 386 data.writeInt32(samplingRate); 387 data.writeInt32(format); 388 data.writeInt32(channelMask); 389 data.writeInt32(latency); 390 data.writeInt32((int32_t) flags); 391 remote()->transact(OPEN_OUTPUT, data, &reply); 392 audio_io_handle_t output = (audio_io_handle_t) reply.readInt32(); 393 ALOGV("openOutput() returned output, %d", output); 394 devices = (audio_devices_t)reply.readInt32(); 395 if (pDevices) *pDevices = devices; 396 samplingRate = reply.readInt32(); 397 if (pSamplingRate) *pSamplingRate = samplingRate; 398 format = (audio_format_t) reply.readInt32(); 399 if (pFormat) *pFormat = format; 400 channelMask = (audio_channel_mask_t)reply.readInt32(); 401 if (pChannelMask) *pChannelMask = channelMask; 402 latency = reply.readInt32(); 403 if (pLatencyMs) *pLatencyMs = latency; 404 return output; 405 } 406 407 virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, 408 audio_io_handle_t output2) 409 { 410 Parcel data, reply; 411 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 412 data.writeInt32((int32_t) output1); 413 data.writeInt32((int32_t) output2); 414 remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply); 415 return (audio_io_handle_t) reply.readInt32(); 416 } 417 418 virtual status_t closeOutput(audio_io_handle_t output) 419 { 420 Parcel data, reply; 421 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 422 data.writeInt32((int32_t) output); 423 remote()->transact(CLOSE_OUTPUT, data, &reply); 424 return reply.readInt32(); 425 } 426 427 virtual status_t suspendOutput(audio_io_handle_t output) 428 { 429 Parcel data, reply; 430 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 431 data.writeInt32((int32_t) output); 432 remote()->transact(SUSPEND_OUTPUT, data, &reply); 433 return reply.readInt32(); 434 } 435 436 virtual status_t restoreOutput(audio_io_handle_t output) 437 { 438 Parcel data, reply; 439 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 440 data.writeInt32((int32_t) output); 441 remote()->transact(RESTORE_OUTPUT, data, &reply); 442 return reply.readInt32(); 443 } 444 445 virtual audio_io_handle_t openInput(audio_module_handle_t module, 446 audio_devices_t *pDevices, 447 uint32_t *pSamplingRate, 448 audio_format_t *pFormat, 449 audio_channel_mask_t *pChannelMask) 450 { 451 Parcel data, reply; 452 audio_devices_t devices = pDevices ? *pDevices : (audio_devices_t)0; 453 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 454 audio_format_t format = pFormat ? *pFormat : AUDIO_FORMAT_DEFAULT; 455 audio_channel_mask_t channelMask = pChannelMask ? *pChannelMask : (audio_channel_mask_t)0; 456 457 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 458 data.writeInt32(module); 459 data.writeInt32(devices); 460 data.writeInt32(samplingRate); 461 data.writeInt32(format); 462 data.writeInt32(channelMask); 463 remote()->transact(OPEN_INPUT, data, &reply); 464 audio_io_handle_t input = (audio_io_handle_t) reply.readInt32(); 465 devices = (audio_devices_t)reply.readInt32(); 466 if (pDevices) *pDevices = devices; 467 samplingRate = reply.readInt32(); 468 if (pSamplingRate) *pSamplingRate = samplingRate; 469 format = (audio_format_t) reply.readInt32(); 470 if (pFormat) *pFormat = format; 471 channelMask = (audio_channel_mask_t)reply.readInt32(); 472 if (pChannelMask) *pChannelMask = channelMask; 473 return input; 474 } 475 476 virtual status_t closeInput(int input) 477 { 478 Parcel data, reply; 479 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 480 data.writeInt32(input); 481 remote()->transact(CLOSE_INPUT, data, &reply); 482 return reply.readInt32(); 483 } 484 485 virtual status_t setStreamOutput(audio_stream_type_t stream, audio_io_handle_t output) 486 { 487 Parcel data, reply; 488 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 489 data.writeInt32((int32_t) stream); 490 data.writeInt32((int32_t) output); 491 remote()->transact(SET_STREAM_OUTPUT, data, &reply); 492 return reply.readInt32(); 493 } 494 495 virtual status_t setVoiceVolume(float volume) 496 { 497 Parcel data, reply; 498 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 499 data.writeFloat(volume); 500 remote()->transact(SET_VOICE_VOLUME, data, &reply); 501 return reply.readInt32(); 502 } 503 504 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, 505 audio_io_handle_t output) const 506 { 507 Parcel data, reply; 508 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 509 data.writeInt32((int32_t) output); 510 remote()->transact(GET_RENDER_POSITION, data, &reply); 511 status_t status = reply.readInt32(); 512 if (status == NO_ERROR) { 513 uint32_t tmp = reply.readInt32(); 514 if (halFrames) { 515 *halFrames = tmp; 516 } 517 tmp = reply.readInt32(); 518 if (dspFrames) { 519 *dspFrames = tmp; 520 } 521 } 522 return status; 523 } 524 525 virtual unsigned int getInputFramesLost(audio_io_handle_t ioHandle) const 526 { 527 Parcel data, reply; 528 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 529 data.writeInt32((int32_t) ioHandle); 530 remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply); 531 return reply.readInt32(); 532 } 533 534 virtual int newAudioSessionId() 535 { 536 Parcel data, reply; 537 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 538 status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply); 539 int id = 0; 540 if (status == NO_ERROR) { 541 id = reply.readInt32(); 542 } 543 return id; 544 } 545 546 virtual void acquireAudioSessionId(int audioSession) 547 { 548 Parcel data, reply; 549 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 550 data.writeInt32(audioSession); 551 remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply); 552 } 553 554 virtual void releaseAudioSessionId(int audioSession) 555 { 556 Parcel data, reply; 557 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 558 data.writeInt32(audioSession); 559 remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply); 560 } 561 562 virtual status_t queryNumberEffects(uint32_t *numEffects) const 563 { 564 Parcel data, reply; 565 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 566 status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply); 567 if (status != NO_ERROR) { 568 return status; 569 } 570 status = reply.readInt32(); 571 if (status != NO_ERROR) { 572 return status; 573 } 574 if (numEffects != NULL) { 575 *numEffects = (uint32_t)reply.readInt32(); 576 } 577 return NO_ERROR; 578 } 579 580 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const 581 { 582 if (pDescriptor == NULL) { 583 return BAD_VALUE; 584 } 585 Parcel data, reply; 586 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 587 data.writeInt32(index); 588 status_t status = remote()->transact(QUERY_EFFECT, data, &reply); 589 if (status != NO_ERROR) { 590 return status; 591 } 592 status = reply.readInt32(); 593 if (status != NO_ERROR) { 594 return status; 595 } 596 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 597 return NO_ERROR; 598 } 599 600 virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid, 601 effect_descriptor_t *pDescriptor) const 602 { 603 if (pUuid == NULL || pDescriptor == NULL) { 604 return BAD_VALUE; 605 } 606 Parcel data, reply; 607 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 608 data.write(pUuid, sizeof(effect_uuid_t)); 609 status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply); 610 if (status != NO_ERROR) { 611 return status; 612 } 613 status = reply.readInt32(); 614 if (status != NO_ERROR) { 615 return status; 616 } 617 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 618 return NO_ERROR; 619 } 620 621 virtual sp<IEffect> createEffect(pid_t pid, 622 effect_descriptor_t *pDesc, 623 const sp<IEffectClient>& client, 624 int32_t priority, 625 audio_io_handle_t output, 626 int sessionId, 627 status_t *status, 628 int *id, 629 int *enabled) 630 { 631 Parcel data, reply; 632 sp<IEffect> effect; 633 634 if (pDesc == NULL) { 635 return effect; 636 if (status) { 637 *status = BAD_VALUE; 638 } 639 } 640 641 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 642 data.writeInt32(pid); 643 data.write(pDesc, sizeof(effect_descriptor_t)); 644 data.writeStrongBinder(client->asBinder()); 645 data.writeInt32(priority); 646 data.writeInt32((int32_t) output); 647 data.writeInt32(sessionId); 648 649 status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply); 650 if (lStatus != NO_ERROR) { 651 ALOGE("createEffect error: %s", strerror(-lStatus)); 652 } else { 653 lStatus = reply.readInt32(); 654 int tmp = reply.readInt32(); 655 if (id) { 656 *id = tmp; 657 } 658 tmp = reply.readInt32(); 659 if (enabled != NULL) { 660 *enabled = tmp; 661 } 662 effect = interface_cast<IEffect>(reply.readStrongBinder()); 663 reply.read(pDesc, sizeof(effect_descriptor_t)); 664 } 665 if (status) { 666 *status = lStatus; 667 } 668 669 return effect; 670 } 671 672 virtual status_t moveEffects(int session, audio_io_handle_t srcOutput, 673 audio_io_handle_t dstOutput) 674 { 675 Parcel data, reply; 676 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 677 data.writeInt32(session); 678 data.writeInt32((int32_t) srcOutput); 679 data.writeInt32((int32_t) dstOutput); 680 remote()->transact(MOVE_EFFECTS, data, &reply); 681 return reply.readInt32(); 682 } 683 684 virtual audio_module_handle_t loadHwModule(const char *name) 685 { 686 Parcel data, reply; 687 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 688 data.writeCString(name); 689 remote()->transact(LOAD_HW_MODULE, data, &reply); 690 return (audio_module_handle_t) reply.readInt32(); 691 } 692 693 virtual int32_t getPrimaryOutputSamplingRate() 694 { 695 Parcel data, reply; 696 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 697 remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply); 698 return reply.readInt32(); 699 } 700 701 virtual int32_t getPrimaryOutputFrameCount() 702 { 703 Parcel data, reply; 704 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 705 remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply); 706 return reply.readInt32(); 707 } 708 709 }; 710 711 IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger"); 712 713 // ---------------------------------------------------------------------- 714 715 status_t BnAudioFlinger::onTransact( 716 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 717 { 718 switch (code) { 719 case CREATE_TRACK: { 720 CHECK_INTERFACE(IAudioFlinger, data, reply); 721 pid_t pid = data.readInt32(); 722 int streamType = data.readInt32(); 723 uint32_t sampleRate = data.readInt32(); 724 audio_format_t format = (audio_format_t) data.readInt32(); 725 audio_channel_mask_t channelMask = data.readInt32(); 726 size_t bufferCount = data.readInt32(); 727 track_flags_t flags = (track_flags_t) data.readInt32(); 728 sp<IMemory> buffer = interface_cast<IMemory>(data.readStrongBinder()); 729 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 730 pid_t tid = (pid_t) data.readInt32(); 731 int sessionId = data.readInt32(); 732 status_t status; 733 sp<IAudioTrack> track = createTrack(pid, 734 (audio_stream_type_t) streamType, sampleRate, format, 735 channelMask, bufferCount, flags, buffer, output, tid, &sessionId, &status); 736 reply->writeInt32(sessionId); 737 reply->writeInt32(status); 738 reply->writeStrongBinder(track->asBinder()); 739 return NO_ERROR; 740 } break; 741 case OPEN_RECORD: { 742 CHECK_INTERFACE(IAudioFlinger, data, reply); 743 pid_t pid = data.readInt32(); 744 audio_io_handle_t input = (audio_io_handle_t) data.readInt32(); 745 uint32_t sampleRate = data.readInt32(); 746 audio_format_t format = (audio_format_t) data.readInt32(); 747 audio_channel_mask_t channelMask = data.readInt32(); 748 size_t bufferCount = data.readInt32(); 749 track_flags_t flags = (track_flags_t) data.readInt32(); 750 pid_t tid = (pid_t) data.readInt32(); 751 int sessionId = data.readInt32(); 752 status_t status; 753 sp<IAudioRecord> record = openRecord(pid, input, 754 sampleRate, format, channelMask, bufferCount, flags, tid, &sessionId, &status); 755 reply->writeInt32(sessionId); 756 reply->writeInt32(status); 757 reply->writeStrongBinder(record->asBinder()); 758 return NO_ERROR; 759 } break; 760 case SAMPLE_RATE: { 761 CHECK_INTERFACE(IAudioFlinger, data, reply); 762 reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) ); 763 return NO_ERROR; 764 } break; 765 #if 0 766 case CHANNEL_COUNT: { 767 CHECK_INTERFACE(IAudioFlinger, data, reply); 768 reply->writeInt32( channelCount((audio_io_handle_t) data.readInt32()) ); 769 return NO_ERROR; 770 } break; 771 #endif 772 case FORMAT: { 773 CHECK_INTERFACE(IAudioFlinger, data, reply); 774 reply->writeInt32( format((audio_io_handle_t) data.readInt32()) ); 775 return NO_ERROR; 776 } break; 777 case FRAME_COUNT: { 778 CHECK_INTERFACE(IAudioFlinger, data, reply); 779 reply->writeInt32( frameCount((audio_io_handle_t) data.readInt32()) ); 780 return NO_ERROR; 781 } break; 782 case LATENCY: { 783 CHECK_INTERFACE(IAudioFlinger, data, reply); 784 reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) ); 785 return NO_ERROR; 786 } break; 787 case SET_MASTER_VOLUME: { 788 CHECK_INTERFACE(IAudioFlinger, data, reply); 789 reply->writeInt32( setMasterVolume(data.readFloat()) ); 790 return NO_ERROR; 791 } break; 792 case SET_MASTER_MUTE: { 793 CHECK_INTERFACE(IAudioFlinger, data, reply); 794 reply->writeInt32( setMasterMute(data.readInt32()) ); 795 return NO_ERROR; 796 } break; 797 case MASTER_VOLUME: { 798 CHECK_INTERFACE(IAudioFlinger, data, reply); 799 reply->writeFloat( masterVolume() ); 800 return NO_ERROR; 801 } break; 802 case MASTER_MUTE: { 803 CHECK_INTERFACE(IAudioFlinger, data, reply); 804 reply->writeInt32( masterMute() ); 805 return NO_ERROR; 806 } break; 807 case SET_STREAM_VOLUME: { 808 CHECK_INTERFACE(IAudioFlinger, data, reply); 809 int stream = data.readInt32(); 810 float volume = data.readFloat(); 811 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 812 reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) ); 813 return NO_ERROR; 814 } break; 815 case SET_STREAM_MUTE: { 816 CHECK_INTERFACE(IAudioFlinger, data, reply); 817 int stream = data.readInt32(); 818 reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) ); 819 return NO_ERROR; 820 } break; 821 case STREAM_VOLUME: { 822 CHECK_INTERFACE(IAudioFlinger, data, reply); 823 int stream = data.readInt32(); 824 int output = data.readInt32(); 825 reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) ); 826 return NO_ERROR; 827 } break; 828 case STREAM_MUTE: { 829 CHECK_INTERFACE(IAudioFlinger, data, reply); 830 int stream = data.readInt32(); 831 reply->writeInt32( streamMute((audio_stream_type_t) stream) ); 832 return NO_ERROR; 833 } break; 834 case SET_MODE: { 835 CHECK_INTERFACE(IAudioFlinger, data, reply); 836 audio_mode_t mode = (audio_mode_t) data.readInt32(); 837 reply->writeInt32( setMode(mode) ); 838 return NO_ERROR; 839 } break; 840 case SET_MIC_MUTE: { 841 CHECK_INTERFACE(IAudioFlinger, data, reply); 842 int state = data.readInt32(); 843 reply->writeInt32( setMicMute(state) ); 844 return NO_ERROR; 845 } break; 846 case GET_MIC_MUTE: { 847 CHECK_INTERFACE(IAudioFlinger, data, reply); 848 reply->writeInt32( getMicMute() ); 849 return NO_ERROR; 850 } break; 851 case SET_PARAMETERS: { 852 CHECK_INTERFACE(IAudioFlinger, data, reply); 853 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 854 String8 keyValuePairs(data.readString8()); 855 reply->writeInt32(setParameters(ioHandle, keyValuePairs)); 856 return NO_ERROR; 857 } break; 858 case GET_PARAMETERS: { 859 CHECK_INTERFACE(IAudioFlinger, data, reply); 860 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 861 String8 keys(data.readString8()); 862 reply->writeString8(getParameters(ioHandle, keys)); 863 return NO_ERROR; 864 } break; 865 866 case REGISTER_CLIENT: { 867 CHECK_INTERFACE(IAudioFlinger, data, reply); 868 sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>(data.readStrongBinder()); 869 registerClient(client); 870 return NO_ERROR; 871 } break; 872 case GET_INPUTBUFFERSIZE: { 873 CHECK_INTERFACE(IAudioFlinger, data, reply); 874 uint32_t sampleRate = data.readInt32(); 875 audio_format_t format = (audio_format_t) data.readInt32(); 876 audio_channel_mask_t channelMask = data.readInt32(); 877 reply->writeInt32( getInputBufferSize(sampleRate, format, channelMask) ); 878 return NO_ERROR; 879 } break; 880 case OPEN_OUTPUT: { 881 CHECK_INTERFACE(IAudioFlinger, data, reply); 882 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 883 audio_devices_t devices = (audio_devices_t)data.readInt32(); 884 uint32_t samplingRate = data.readInt32(); 885 audio_format_t format = (audio_format_t) data.readInt32(); 886 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 887 uint32_t latency = data.readInt32(); 888 audio_output_flags_t flags = (audio_output_flags_t) data.readInt32(); 889 audio_io_handle_t output = openOutput(module, 890 &devices, 891 &samplingRate, 892 &format, 893 &channelMask, 894 &latency, 895 flags); 896 ALOGV("OPEN_OUTPUT output, %p", output); 897 reply->writeInt32((int32_t) output); 898 reply->writeInt32(devices); 899 reply->writeInt32(samplingRate); 900 reply->writeInt32(format); 901 reply->writeInt32(channelMask); 902 reply->writeInt32(latency); 903 return NO_ERROR; 904 } break; 905 case OPEN_DUPLICATE_OUTPUT: { 906 CHECK_INTERFACE(IAudioFlinger, data, reply); 907 audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32(); 908 audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32(); 909 reply->writeInt32((int32_t) openDuplicateOutput(output1, output2)); 910 return NO_ERROR; 911 } break; 912 case CLOSE_OUTPUT: { 913 CHECK_INTERFACE(IAudioFlinger, data, reply); 914 reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32())); 915 return NO_ERROR; 916 } break; 917 case SUSPEND_OUTPUT: { 918 CHECK_INTERFACE(IAudioFlinger, data, reply); 919 reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32())); 920 return NO_ERROR; 921 } break; 922 case RESTORE_OUTPUT: { 923 CHECK_INTERFACE(IAudioFlinger, data, reply); 924 reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32())); 925 return NO_ERROR; 926 } break; 927 case OPEN_INPUT: { 928 CHECK_INTERFACE(IAudioFlinger, data, reply); 929 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 930 audio_devices_t devices = (audio_devices_t)data.readInt32(); 931 uint32_t samplingRate = data.readInt32(); 932 audio_format_t format = (audio_format_t) data.readInt32(); 933 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 934 935 audio_io_handle_t input = openInput(module, 936 &devices, 937 &samplingRate, 938 &format, 939 &channelMask); 940 reply->writeInt32((int32_t) input); 941 reply->writeInt32(devices); 942 reply->writeInt32(samplingRate); 943 reply->writeInt32(format); 944 reply->writeInt32(channelMask); 945 return NO_ERROR; 946 } break; 947 case CLOSE_INPUT: { 948 CHECK_INTERFACE(IAudioFlinger, data, reply); 949 reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32())); 950 return NO_ERROR; 951 } break; 952 case SET_STREAM_OUTPUT: { 953 CHECK_INTERFACE(IAudioFlinger, data, reply); 954 uint32_t stream = data.readInt32(); 955 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 956 reply->writeInt32(setStreamOutput((audio_stream_type_t) stream, output)); 957 return NO_ERROR; 958 } break; 959 case SET_VOICE_VOLUME: { 960 CHECK_INTERFACE(IAudioFlinger, data, reply); 961 float volume = data.readFloat(); 962 reply->writeInt32( setVoiceVolume(volume) ); 963 return NO_ERROR; 964 } break; 965 case GET_RENDER_POSITION: { 966 CHECK_INTERFACE(IAudioFlinger, data, reply); 967 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 968 uint32_t halFrames; 969 uint32_t dspFrames; 970 status_t status = getRenderPosition(&halFrames, &dspFrames, output); 971 reply->writeInt32(status); 972 if (status == NO_ERROR) { 973 reply->writeInt32(halFrames); 974 reply->writeInt32(dspFrames); 975 } 976 return NO_ERROR; 977 } 978 case GET_INPUT_FRAMES_LOST: { 979 CHECK_INTERFACE(IAudioFlinger, data, reply); 980 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 981 reply->writeInt32(getInputFramesLost(ioHandle)); 982 return NO_ERROR; 983 } break; 984 case NEW_AUDIO_SESSION_ID: { 985 CHECK_INTERFACE(IAudioFlinger, data, reply); 986 reply->writeInt32(newAudioSessionId()); 987 return NO_ERROR; 988 } break; 989 case ACQUIRE_AUDIO_SESSION_ID: { 990 CHECK_INTERFACE(IAudioFlinger, data, reply); 991 int audioSession = data.readInt32(); 992 acquireAudioSessionId(audioSession); 993 return NO_ERROR; 994 } break; 995 case RELEASE_AUDIO_SESSION_ID: { 996 CHECK_INTERFACE(IAudioFlinger, data, reply); 997 int audioSession = data.readInt32(); 998 releaseAudioSessionId(audioSession); 999 return NO_ERROR; 1000 } break; 1001 case QUERY_NUM_EFFECTS: { 1002 CHECK_INTERFACE(IAudioFlinger, data, reply); 1003 uint32_t numEffects; 1004 status_t status = queryNumberEffects(&numEffects); 1005 reply->writeInt32(status); 1006 if (status == NO_ERROR) { 1007 reply->writeInt32((int32_t)numEffects); 1008 } 1009 return NO_ERROR; 1010 } 1011 case QUERY_EFFECT: { 1012 CHECK_INTERFACE(IAudioFlinger, data, reply); 1013 effect_descriptor_t desc; 1014 status_t status = queryEffect(data.readInt32(), &desc); 1015 reply->writeInt32(status); 1016 if (status == NO_ERROR) { 1017 reply->write(&desc, sizeof(effect_descriptor_t)); 1018 } 1019 return NO_ERROR; 1020 } 1021 case GET_EFFECT_DESCRIPTOR: { 1022 CHECK_INTERFACE(IAudioFlinger, data, reply); 1023 effect_uuid_t uuid; 1024 data.read(&uuid, sizeof(effect_uuid_t)); 1025 effect_descriptor_t desc; 1026 status_t status = getEffectDescriptor(&uuid, &desc); 1027 reply->writeInt32(status); 1028 if (status == NO_ERROR) { 1029 reply->write(&desc, sizeof(effect_descriptor_t)); 1030 } 1031 return NO_ERROR; 1032 } 1033 case CREATE_EFFECT: { 1034 CHECK_INTERFACE(IAudioFlinger, data, reply); 1035 pid_t pid = data.readInt32(); 1036 effect_descriptor_t desc; 1037 data.read(&desc, sizeof(effect_descriptor_t)); 1038 sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder()); 1039 int32_t priority = data.readInt32(); 1040 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1041 int sessionId = data.readInt32(); 1042 status_t status; 1043 int id; 1044 int enabled; 1045 1046 sp<IEffect> effect = createEffect(pid, &desc, client, priority, output, sessionId, &status, &id, &enabled); 1047 reply->writeInt32(status); 1048 reply->writeInt32(id); 1049 reply->writeInt32(enabled); 1050 reply->writeStrongBinder(effect->asBinder()); 1051 reply->write(&desc, sizeof(effect_descriptor_t)); 1052 return NO_ERROR; 1053 } break; 1054 case MOVE_EFFECTS: { 1055 CHECK_INTERFACE(IAudioFlinger, data, reply); 1056 int session = data.readInt32(); 1057 audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32(); 1058 audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32(); 1059 reply->writeInt32(moveEffects(session, srcOutput, dstOutput)); 1060 return NO_ERROR; 1061 } break; 1062 case LOAD_HW_MODULE: { 1063 CHECK_INTERFACE(IAudioFlinger, data, reply); 1064 reply->writeInt32(loadHwModule(data.readCString())); 1065 return NO_ERROR; 1066 } break; 1067 case GET_PRIMARY_OUTPUT_SAMPLING_RATE: { 1068 CHECK_INTERFACE(IAudioFlinger, data, reply); 1069 reply->writeInt32(getPrimaryOutputSamplingRate()); 1070 return NO_ERROR; 1071 } break; 1072 case GET_PRIMARY_OUTPUT_FRAME_COUNT: { 1073 CHECK_INTERFACE(IAudioFlinger, data, reply); 1074 reply->writeInt32(getPrimaryOutputFrameCount()); 1075 return NO_ERROR; 1076 } break; 1077 default: 1078 return BBinder::onTransact(code, data, reply, flags); 1079 } 1080 } 1081 1082 // ---------------------------------------------------------------------------- 1083 1084 }; // namespace android 1085
