IAudioFlinger.cpp revision 462fd2fa9eef642b0574aa7409de0bde3fec8d43
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 29namespace android { 30 31enum { 32 CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION, 33 OPEN_RECORD, 34 SAMPLE_RATE, 35 RESERVED, // obsolete, was CHANNEL_COUNT 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 SET_LOW_RAM_DEVICE, 77}; 78 79class BpAudioFlinger : public BpInterface<IAudioFlinger> 80{ 81public: 82 BpAudioFlinger(const sp<IBinder>& impl) 83 : BpInterface<IAudioFlinger>(impl) 84 { 85 } 86 87 virtual sp<IAudioTrack> createTrack( 88 audio_stream_type_t streamType, 89 uint32_t sampleRate, 90 audio_format_t format, 91 audio_channel_mask_t channelMask, 92 size_t 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 String8& name, 99 int clientUid, 100 status_t *status) 101 { 102 Parcel data, reply; 103 sp<IAudioTrack> track; 104 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 105 data.writeInt32((int32_t) streamType); 106 data.writeInt32(sampleRate); 107 data.writeInt32(format); 108 data.writeInt32(channelMask); 109 data.writeInt32(frameCount); 110 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 111 data.writeInt32(lFlags); 112 if (sharedBuffer != 0) { 113 data.writeInt32(true); 114 data.writeStrongBinder(sharedBuffer->asBinder()); 115 } else { 116 data.writeInt32(false); 117 } 118 data.writeInt32((int32_t) output); 119 data.writeInt32((int32_t) tid); 120 int lSessionId = 0; 121 if (sessionId != NULL) { 122 lSessionId = *sessionId; 123 } 124 data.writeInt32(lSessionId); 125 data.writeInt32(clientUid); 126 status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply); 127 if (lStatus != NO_ERROR) { 128 ALOGE("createTrack error: %s", strerror(-lStatus)); 129 } else { 130 lFlags = reply.readInt32(); 131 if (flags != NULL) { 132 *flags = lFlags; 133 } 134 lSessionId = reply.readInt32(); 135 if (sessionId != NULL) { 136 *sessionId = lSessionId; 137 } 138 name = reply.readString8(); 139 lStatus = reply.readInt32(); 140 track = interface_cast<IAudioTrack>(reply.readStrongBinder()); 141 } 142 if (status != NULL) { 143 *status = lStatus; 144 } 145 return track; 146 } 147 148 virtual sp<IAudioRecord> openRecord( 149 audio_io_handle_t input, 150 uint32_t sampleRate, 151 audio_format_t format, 152 audio_channel_mask_t channelMask, 153 size_t frameCount, 154 track_flags_t *flags, 155 pid_t tid, 156 int *sessionId, 157 status_t *status) 158 { 159 Parcel data, reply; 160 sp<IAudioRecord> record; 161 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 162 data.writeInt32((int32_t) input); 163 data.writeInt32(sampleRate); 164 data.writeInt32(format); 165 data.writeInt32(channelMask); 166 data.writeInt32(frameCount); 167 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 168 data.writeInt32(lFlags); 169 data.writeInt32((int32_t) tid); 170 int lSessionId = 0; 171 if (sessionId != NULL) { 172 lSessionId = *sessionId; 173 } 174 data.writeInt32(lSessionId); 175 status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply); 176 if (lStatus != NO_ERROR) { 177 ALOGE("openRecord error: %s", strerror(-lStatus)); 178 } else { 179 lFlags = reply.readInt32(); 180 if (flags != NULL) { 181 *flags = lFlags; 182 } 183 lSessionId = reply.readInt32(); 184 if (sessionId != NULL) { 185 *sessionId = lSessionId; 186 } 187 lStatus = reply.readInt32(); 188 record = interface_cast<IAudioRecord>(reply.readStrongBinder()); 189 if (lStatus == NO_ERROR) { 190 if (record == 0) { 191 ALOGE("openRecord should have returned an IAudioRecord"); 192 lStatus = UNKNOWN_ERROR; 193 } 194 } else { 195 if (record != 0) { 196 ALOGE("openRecord returned an IAudioRecord but with status %d", lStatus); 197 record.clear(); 198 } 199 } 200 } 201 if (status != NULL) { 202 *status = lStatus; 203 } 204 return record; 205 } 206 207 virtual uint32_t sampleRate(audio_io_handle_t output) const 208 { 209 Parcel data, reply; 210 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 211 data.writeInt32((int32_t) output); 212 remote()->transact(SAMPLE_RATE, data, &reply); 213 return reply.readInt32(); 214 } 215 216 virtual audio_format_t format(audio_io_handle_t output) const 217 { 218 Parcel data, reply; 219 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 220 data.writeInt32((int32_t) output); 221 remote()->transact(FORMAT, data, &reply); 222 return (audio_format_t) reply.readInt32(); 223 } 224 225 virtual size_t frameCount(audio_io_handle_t output) const 226 { 227 Parcel data, reply; 228 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 229 data.writeInt32((int32_t) output); 230 remote()->transact(FRAME_COUNT, data, &reply); 231 return reply.readInt32(); 232 } 233 234 virtual uint32_t latency(audio_io_handle_t output) const 235 { 236 Parcel data, reply; 237 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 238 data.writeInt32((int32_t) output); 239 remote()->transact(LATENCY, data, &reply); 240 return reply.readInt32(); 241 } 242 243 virtual status_t setMasterVolume(float value) 244 { 245 Parcel data, reply; 246 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 247 data.writeFloat(value); 248 remote()->transact(SET_MASTER_VOLUME, data, &reply); 249 return reply.readInt32(); 250 } 251 252 virtual status_t setMasterMute(bool muted) 253 { 254 Parcel data, reply; 255 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 256 data.writeInt32(muted); 257 remote()->transact(SET_MASTER_MUTE, data, &reply); 258 return reply.readInt32(); 259 } 260 261 virtual float masterVolume() const 262 { 263 Parcel data, reply; 264 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 265 remote()->transact(MASTER_VOLUME, data, &reply); 266 return reply.readFloat(); 267 } 268 269 virtual bool masterMute() const 270 { 271 Parcel data, reply; 272 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 273 remote()->transact(MASTER_MUTE, data, &reply); 274 return reply.readInt32(); 275 } 276 277 virtual status_t setStreamVolume(audio_stream_type_t stream, float value, 278 audio_io_handle_t output) 279 { 280 Parcel data, reply; 281 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 282 data.writeInt32((int32_t) stream); 283 data.writeFloat(value); 284 data.writeInt32((int32_t) output); 285 remote()->transact(SET_STREAM_VOLUME, data, &reply); 286 return reply.readInt32(); 287 } 288 289 virtual status_t setStreamMute(audio_stream_type_t stream, bool muted) 290 { 291 Parcel data, reply; 292 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 293 data.writeInt32((int32_t) stream); 294 data.writeInt32(muted); 295 remote()->transact(SET_STREAM_MUTE, data, &reply); 296 return reply.readInt32(); 297 } 298 299 virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const 300 { 301 Parcel data, reply; 302 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 303 data.writeInt32((int32_t) stream); 304 data.writeInt32((int32_t) output); 305 remote()->transact(STREAM_VOLUME, data, &reply); 306 return reply.readFloat(); 307 } 308 309 virtual bool streamMute(audio_stream_type_t stream) const 310 { 311 Parcel data, reply; 312 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 313 data.writeInt32((int32_t) stream); 314 remote()->transact(STREAM_MUTE, data, &reply); 315 return reply.readInt32(); 316 } 317 318 virtual status_t setMode(audio_mode_t mode) 319 { 320 Parcel data, reply; 321 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 322 data.writeInt32(mode); 323 remote()->transact(SET_MODE, data, &reply); 324 return reply.readInt32(); 325 } 326 327 virtual status_t setMicMute(bool state) 328 { 329 Parcel data, reply; 330 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 331 data.writeInt32(state); 332 remote()->transact(SET_MIC_MUTE, data, &reply); 333 return reply.readInt32(); 334 } 335 336 virtual bool getMicMute() const 337 { 338 Parcel data, reply; 339 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 340 remote()->transact(GET_MIC_MUTE, data, &reply); 341 return reply.readInt32(); 342 } 343 344 virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs) 345 { 346 Parcel data, reply; 347 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 348 data.writeInt32((int32_t) ioHandle); 349 data.writeString8(keyValuePairs); 350 remote()->transact(SET_PARAMETERS, data, &reply); 351 return reply.readInt32(); 352 } 353 354 virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const 355 { 356 Parcel data, reply; 357 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 358 data.writeInt32((int32_t) ioHandle); 359 data.writeString8(keys); 360 remote()->transact(GET_PARAMETERS, data, &reply); 361 return reply.readString8(); 362 } 363 364 virtual void registerClient(const sp<IAudioFlingerClient>& client) 365 { 366 Parcel data, reply; 367 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 368 data.writeStrongBinder(client->asBinder()); 369 remote()->transact(REGISTER_CLIENT, data, &reply); 370 } 371 372 virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 373 audio_channel_mask_t channelMask) const 374 { 375 Parcel data, reply; 376 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 377 data.writeInt32(sampleRate); 378 data.writeInt32(format); 379 data.writeInt32(channelMask); 380 remote()->transact(GET_INPUTBUFFERSIZE, data, &reply); 381 return reply.readInt32(); 382 } 383 384 virtual audio_io_handle_t openOutput(audio_module_handle_t module, 385 audio_devices_t *pDevices, 386 uint32_t *pSamplingRate, 387 audio_format_t *pFormat, 388 audio_channel_mask_t *pChannelMask, 389 uint32_t *pLatencyMs, 390 audio_output_flags_t flags, 391 const audio_offload_info_t *offloadInfo) 392 { 393 Parcel data, reply; 394 audio_devices_t devices = pDevices != NULL ? *pDevices : (audio_devices_t)0; 395 uint32_t samplingRate = pSamplingRate != NULL ? *pSamplingRate : 0; 396 audio_format_t format = pFormat != NULL ? *pFormat : AUDIO_FORMAT_DEFAULT; 397 audio_channel_mask_t channelMask = pChannelMask != NULL ? 398 *pChannelMask : (audio_channel_mask_t)0; 399 uint32_t latency = pLatencyMs != NULL ? *pLatencyMs : 0; 400 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 401 data.writeInt32(module); 402 data.writeInt32(devices); 403 data.writeInt32(samplingRate); 404 data.writeInt32(format); 405 data.writeInt32(channelMask); 406 data.writeInt32(latency); 407 data.writeInt32((int32_t) flags); 408 if (offloadInfo == NULL) { 409 data.writeInt32(0); 410 } else { 411 data.writeInt32(1); 412 data.write(offloadInfo, sizeof(audio_offload_info_t)); 413 } 414 remote()->transact(OPEN_OUTPUT, data, &reply); 415 audio_io_handle_t output = (audio_io_handle_t) reply.readInt32(); 416 ALOGV("openOutput() returned output, %d", output); 417 devices = (audio_devices_t)reply.readInt32(); 418 if (pDevices != NULL) { 419 *pDevices = devices; 420 } 421 samplingRate = reply.readInt32(); 422 if (pSamplingRate != NULL) { 423 *pSamplingRate = samplingRate; 424 } 425 format = (audio_format_t) reply.readInt32(); 426 if (pFormat != NULL) { 427 *pFormat = format; 428 } 429 channelMask = (audio_channel_mask_t)reply.readInt32(); 430 if (pChannelMask != NULL) { 431 *pChannelMask = channelMask; 432 } 433 latency = reply.readInt32(); 434 if (pLatencyMs != NULL) { 435 *pLatencyMs = latency; 436 } 437 return output; 438 } 439 440 virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, 441 audio_io_handle_t output2) 442 { 443 Parcel data, reply; 444 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 445 data.writeInt32((int32_t) output1); 446 data.writeInt32((int32_t) output2); 447 remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply); 448 return (audio_io_handle_t) reply.readInt32(); 449 } 450 451 virtual status_t closeOutput(audio_io_handle_t output) 452 { 453 Parcel data, reply; 454 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 455 data.writeInt32((int32_t) output); 456 remote()->transact(CLOSE_OUTPUT, data, &reply); 457 return reply.readInt32(); 458 } 459 460 virtual status_t suspendOutput(audio_io_handle_t output) 461 { 462 Parcel data, reply; 463 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 464 data.writeInt32((int32_t) output); 465 remote()->transact(SUSPEND_OUTPUT, data, &reply); 466 return reply.readInt32(); 467 } 468 469 virtual status_t restoreOutput(audio_io_handle_t output) 470 { 471 Parcel data, reply; 472 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 473 data.writeInt32((int32_t) output); 474 remote()->transact(RESTORE_OUTPUT, data, &reply); 475 return reply.readInt32(); 476 } 477 478 virtual audio_io_handle_t openInput(audio_module_handle_t module, 479 audio_devices_t *pDevices, 480 uint32_t *pSamplingRate, 481 audio_format_t *pFormat, 482 audio_channel_mask_t *pChannelMask) 483 { 484 Parcel data, reply; 485 audio_devices_t devices = pDevices != NULL ? *pDevices : (audio_devices_t)0; 486 uint32_t samplingRate = pSamplingRate != NULL ? *pSamplingRate : 0; 487 audio_format_t format = pFormat != NULL ? *pFormat : AUDIO_FORMAT_DEFAULT; 488 audio_channel_mask_t channelMask = pChannelMask != NULL ? 489 *pChannelMask : (audio_channel_mask_t)0; 490 491 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 492 data.writeInt32(module); 493 data.writeInt32(devices); 494 data.writeInt32(samplingRate); 495 data.writeInt32(format); 496 data.writeInt32(channelMask); 497 remote()->transact(OPEN_INPUT, data, &reply); 498 audio_io_handle_t input = (audio_io_handle_t) reply.readInt32(); 499 devices = (audio_devices_t)reply.readInt32(); 500 if (pDevices != NULL) { 501 *pDevices = devices; 502 } 503 samplingRate = reply.readInt32(); 504 if (pSamplingRate != NULL) { 505 *pSamplingRate = samplingRate; 506 } 507 format = (audio_format_t) reply.readInt32(); 508 if (pFormat != NULL) { 509 *pFormat = format; 510 } 511 channelMask = (audio_channel_mask_t)reply.readInt32(); 512 if (pChannelMask != NULL) { 513 *pChannelMask = channelMask; 514 } 515 return input; 516 } 517 518 virtual status_t closeInput(int input) 519 { 520 Parcel data, reply; 521 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 522 data.writeInt32(input); 523 remote()->transact(CLOSE_INPUT, data, &reply); 524 return reply.readInt32(); 525 } 526 527 virtual status_t setStreamOutput(audio_stream_type_t stream, audio_io_handle_t output) 528 { 529 Parcel data, reply; 530 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 531 data.writeInt32((int32_t) stream); 532 data.writeInt32((int32_t) output); 533 remote()->transact(SET_STREAM_OUTPUT, data, &reply); 534 return reply.readInt32(); 535 } 536 537 virtual status_t setVoiceVolume(float volume) 538 { 539 Parcel data, reply; 540 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 541 data.writeFloat(volume); 542 remote()->transact(SET_VOICE_VOLUME, data, &reply); 543 return reply.readInt32(); 544 } 545 546 virtual status_t getRenderPosition(size_t *halFrames, size_t *dspFrames, 547 audio_io_handle_t output) const 548 { 549 Parcel data, reply; 550 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 551 data.writeInt32((int32_t) output); 552 remote()->transact(GET_RENDER_POSITION, data, &reply); 553 status_t status = reply.readInt32(); 554 if (status == NO_ERROR) { 555 uint32_t tmp = reply.readInt32(); 556 if (halFrames != NULL) { 557 *halFrames = tmp; 558 } 559 tmp = reply.readInt32(); 560 if (dspFrames != NULL) { 561 *dspFrames = tmp; 562 } 563 } 564 return status; 565 } 566 567 virtual size_t getInputFramesLost(audio_io_handle_t ioHandle) const 568 { 569 Parcel data, reply; 570 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 571 data.writeInt32((int32_t) ioHandle); 572 remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply); 573 return reply.readInt32(); 574 } 575 576 virtual int newAudioSessionId() 577 { 578 Parcel data, reply; 579 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 580 status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply); 581 int id = 0; 582 if (status == NO_ERROR) { 583 id = reply.readInt32(); 584 } 585 return id; 586 } 587 588 virtual void acquireAudioSessionId(int audioSession) 589 { 590 Parcel data, reply; 591 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 592 data.writeInt32(audioSession); 593 remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply); 594 } 595 596 virtual void releaseAudioSessionId(int audioSession) 597 { 598 Parcel data, reply; 599 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 600 data.writeInt32(audioSession); 601 remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply); 602 } 603 604 virtual status_t queryNumberEffects(uint32_t *numEffects) const 605 { 606 Parcel data, reply; 607 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 608 status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply); 609 if (status != NO_ERROR) { 610 return status; 611 } 612 status = reply.readInt32(); 613 if (status != NO_ERROR) { 614 return status; 615 } 616 if (numEffects != NULL) { 617 *numEffects = (uint32_t)reply.readInt32(); 618 } 619 return NO_ERROR; 620 } 621 622 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const 623 { 624 if (pDescriptor == NULL) { 625 return BAD_VALUE; 626 } 627 Parcel data, reply; 628 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 629 data.writeInt32(index); 630 status_t status = remote()->transact(QUERY_EFFECT, data, &reply); 631 if (status != NO_ERROR) { 632 return status; 633 } 634 status = reply.readInt32(); 635 if (status != NO_ERROR) { 636 return status; 637 } 638 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 639 return NO_ERROR; 640 } 641 642 virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid, 643 effect_descriptor_t *pDescriptor) const 644 { 645 if (pUuid == NULL || pDescriptor == NULL) { 646 return BAD_VALUE; 647 } 648 Parcel data, reply; 649 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 650 data.write(pUuid, sizeof(effect_uuid_t)); 651 status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply); 652 if (status != NO_ERROR) { 653 return status; 654 } 655 status = reply.readInt32(); 656 if (status != NO_ERROR) { 657 return status; 658 } 659 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 660 return NO_ERROR; 661 } 662 663 virtual sp<IEffect> createEffect( 664 effect_descriptor_t *pDesc, 665 const sp<IEffectClient>& client, 666 int32_t priority, 667 audio_io_handle_t output, 668 int sessionId, 669 status_t *status, 670 int *id, 671 int *enabled) 672 { 673 Parcel data, reply; 674 sp<IEffect> effect; 675 676 if (pDesc == NULL) { 677 return effect; 678 if (status != NULL) { 679 *status = BAD_VALUE; 680 } 681 } 682 683 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 684 data.write(pDesc, sizeof(effect_descriptor_t)); 685 data.writeStrongBinder(client->asBinder()); 686 data.writeInt32(priority); 687 data.writeInt32((int32_t) output); 688 data.writeInt32(sessionId); 689 690 status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply); 691 if (lStatus != NO_ERROR) { 692 ALOGE("createEffect error: %s", strerror(-lStatus)); 693 } else { 694 lStatus = reply.readInt32(); 695 int tmp = reply.readInt32(); 696 if (id != NULL) { 697 *id = tmp; 698 } 699 tmp = reply.readInt32(); 700 if (enabled != NULL) { 701 *enabled = tmp; 702 } 703 effect = interface_cast<IEffect>(reply.readStrongBinder()); 704 reply.read(pDesc, sizeof(effect_descriptor_t)); 705 } 706 if (status != NULL) { 707 *status = lStatus; 708 } 709 710 return effect; 711 } 712 713 virtual status_t moveEffects(int session, audio_io_handle_t srcOutput, 714 audio_io_handle_t dstOutput) 715 { 716 Parcel data, reply; 717 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 718 data.writeInt32(session); 719 data.writeInt32((int32_t) srcOutput); 720 data.writeInt32((int32_t) dstOutput); 721 remote()->transact(MOVE_EFFECTS, data, &reply); 722 return reply.readInt32(); 723 } 724 725 virtual audio_module_handle_t loadHwModule(const char *name) 726 { 727 Parcel data, reply; 728 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 729 data.writeCString(name); 730 remote()->transact(LOAD_HW_MODULE, data, &reply); 731 return (audio_module_handle_t) reply.readInt32(); 732 } 733 734 virtual uint32_t getPrimaryOutputSamplingRate() 735 { 736 Parcel data, reply; 737 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 738 remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply); 739 return reply.readInt32(); 740 } 741 742 virtual size_t getPrimaryOutputFrameCount() 743 { 744 Parcel data, reply; 745 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 746 remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply); 747 return reply.readInt32(); 748 } 749 750 virtual status_t setLowRamDevice(bool isLowRamDevice) 751 { 752 Parcel data, reply; 753 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 754 data.writeInt32((int) isLowRamDevice); 755 remote()->transact(SET_LOW_RAM_DEVICE, data, &reply); 756 return reply.readInt32(); 757 } 758 759}; 760 761IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger"); 762 763// ---------------------------------------------------------------------- 764 765status_t BnAudioFlinger::onTransact( 766 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 767{ 768 switch (code) { 769 case CREATE_TRACK: { 770 CHECK_INTERFACE(IAudioFlinger, data, reply); 771 int streamType = data.readInt32(); 772 uint32_t sampleRate = data.readInt32(); 773 audio_format_t format = (audio_format_t) data.readInt32(); 774 audio_channel_mask_t channelMask = data.readInt32(); 775 size_t frameCount = data.readInt32(); 776 track_flags_t flags = (track_flags_t) data.readInt32(); 777 bool haveSharedBuffer = data.readInt32() != 0; 778 sp<IMemory> buffer; 779 if (haveSharedBuffer) { 780 buffer = interface_cast<IMemory>(data.readStrongBinder()); 781 } 782 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 783 pid_t tid = (pid_t) data.readInt32(); 784 int sessionId = data.readInt32(); 785 int clientUid = data.readInt32(); 786 String8 name; 787 status_t status; 788 sp<IAudioTrack> track; 789 if ((haveSharedBuffer && (buffer == 0)) || 790 ((buffer != 0) && (buffer->pointer() == NULL))) { 791 ALOGW("CREATE_TRACK: cannot retrieve shared memory"); 792 status = DEAD_OBJECT; 793 } else { 794 track = createTrack( 795 (audio_stream_type_t) streamType, sampleRate, format, 796 channelMask, frameCount, &flags, buffer, output, tid, 797 &sessionId, name, clientUid, &status); 798 } 799 reply->writeInt32(flags); 800 reply->writeInt32(sessionId); 801 reply->writeString8(name); 802 reply->writeInt32(status); 803 reply->writeStrongBinder(track->asBinder()); 804 return NO_ERROR; 805 } break; 806 case OPEN_RECORD: { 807 CHECK_INTERFACE(IAudioFlinger, data, reply); 808 audio_io_handle_t input = (audio_io_handle_t) data.readInt32(); 809 uint32_t sampleRate = data.readInt32(); 810 audio_format_t format = (audio_format_t) data.readInt32(); 811 audio_channel_mask_t channelMask = data.readInt32(); 812 size_t frameCount = data.readInt32(); 813 track_flags_t flags = (track_flags_t) data.readInt32(); 814 pid_t tid = (pid_t) data.readInt32(); 815 int sessionId = data.readInt32(); 816 status_t status; 817 sp<IAudioRecord> record = openRecord(input, 818 sampleRate, format, channelMask, frameCount, &flags, tid, &sessionId, &status); 819 LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR)); 820 reply->writeInt32(flags); 821 reply->writeInt32(sessionId); 822 reply->writeInt32(status); 823 reply->writeStrongBinder(record->asBinder()); 824 return NO_ERROR; 825 } break; 826 case SAMPLE_RATE: { 827 CHECK_INTERFACE(IAudioFlinger, data, reply); 828 reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) ); 829 return NO_ERROR; 830 } break; 831 case FORMAT: { 832 CHECK_INTERFACE(IAudioFlinger, data, reply); 833 reply->writeInt32( format((audio_io_handle_t) data.readInt32()) ); 834 return NO_ERROR; 835 } break; 836 case FRAME_COUNT: { 837 CHECK_INTERFACE(IAudioFlinger, data, reply); 838 reply->writeInt32( frameCount((audio_io_handle_t) data.readInt32()) ); 839 return NO_ERROR; 840 } break; 841 case LATENCY: { 842 CHECK_INTERFACE(IAudioFlinger, data, reply); 843 reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) ); 844 return NO_ERROR; 845 } break; 846 case SET_MASTER_VOLUME: { 847 CHECK_INTERFACE(IAudioFlinger, data, reply); 848 reply->writeInt32( setMasterVolume(data.readFloat()) ); 849 return NO_ERROR; 850 } break; 851 case SET_MASTER_MUTE: { 852 CHECK_INTERFACE(IAudioFlinger, data, reply); 853 reply->writeInt32( setMasterMute(data.readInt32()) ); 854 return NO_ERROR; 855 } break; 856 case MASTER_VOLUME: { 857 CHECK_INTERFACE(IAudioFlinger, data, reply); 858 reply->writeFloat( masterVolume() ); 859 return NO_ERROR; 860 } break; 861 case MASTER_MUTE: { 862 CHECK_INTERFACE(IAudioFlinger, data, reply); 863 reply->writeInt32( masterMute() ); 864 return NO_ERROR; 865 } break; 866 case SET_STREAM_VOLUME: { 867 CHECK_INTERFACE(IAudioFlinger, data, reply); 868 int stream = data.readInt32(); 869 float volume = data.readFloat(); 870 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 871 reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) ); 872 return NO_ERROR; 873 } break; 874 case SET_STREAM_MUTE: { 875 CHECK_INTERFACE(IAudioFlinger, data, reply); 876 int stream = data.readInt32(); 877 reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) ); 878 return NO_ERROR; 879 } break; 880 case STREAM_VOLUME: { 881 CHECK_INTERFACE(IAudioFlinger, data, reply); 882 int stream = data.readInt32(); 883 int output = data.readInt32(); 884 reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) ); 885 return NO_ERROR; 886 } break; 887 case STREAM_MUTE: { 888 CHECK_INTERFACE(IAudioFlinger, data, reply); 889 int stream = data.readInt32(); 890 reply->writeInt32( streamMute((audio_stream_type_t) stream) ); 891 return NO_ERROR; 892 } break; 893 case SET_MODE: { 894 CHECK_INTERFACE(IAudioFlinger, data, reply); 895 audio_mode_t mode = (audio_mode_t) data.readInt32(); 896 reply->writeInt32( setMode(mode) ); 897 return NO_ERROR; 898 } break; 899 case SET_MIC_MUTE: { 900 CHECK_INTERFACE(IAudioFlinger, data, reply); 901 int state = data.readInt32(); 902 reply->writeInt32( setMicMute(state) ); 903 return NO_ERROR; 904 } break; 905 case GET_MIC_MUTE: { 906 CHECK_INTERFACE(IAudioFlinger, data, reply); 907 reply->writeInt32( getMicMute() ); 908 return NO_ERROR; 909 } break; 910 case SET_PARAMETERS: { 911 CHECK_INTERFACE(IAudioFlinger, data, reply); 912 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 913 String8 keyValuePairs(data.readString8()); 914 reply->writeInt32(setParameters(ioHandle, keyValuePairs)); 915 return NO_ERROR; 916 } break; 917 case GET_PARAMETERS: { 918 CHECK_INTERFACE(IAudioFlinger, data, reply); 919 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 920 String8 keys(data.readString8()); 921 reply->writeString8(getParameters(ioHandle, keys)); 922 return NO_ERROR; 923 } break; 924 925 case REGISTER_CLIENT: { 926 CHECK_INTERFACE(IAudioFlinger, data, reply); 927 sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>( 928 data.readStrongBinder()); 929 registerClient(client); 930 return NO_ERROR; 931 } break; 932 case GET_INPUTBUFFERSIZE: { 933 CHECK_INTERFACE(IAudioFlinger, data, reply); 934 uint32_t sampleRate = data.readInt32(); 935 audio_format_t format = (audio_format_t) data.readInt32(); 936 audio_channel_mask_t channelMask = data.readInt32(); 937 reply->writeInt32( getInputBufferSize(sampleRate, format, channelMask) ); 938 return NO_ERROR; 939 } break; 940 case OPEN_OUTPUT: { 941 CHECK_INTERFACE(IAudioFlinger, data, reply); 942 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 943 audio_devices_t devices = (audio_devices_t)data.readInt32(); 944 uint32_t samplingRate = data.readInt32(); 945 audio_format_t format = (audio_format_t) data.readInt32(); 946 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 947 uint32_t latency = data.readInt32(); 948 audio_output_flags_t flags = (audio_output_flags_t) data.readInt32(); 949 bool hasOffloadInfo = data.readInt32() != 0; 950 audio_offload_info_t offloadInfo; 951 if (hasOffloadInfo) { 952 data.read(&offloadInfo, sizeof(audio_offload_info_t)); 953 } 954 audio_io_handle_t output = openOutput(module, 955 &devices, 956 &samplingRate, 957 &format, 958 &channelMask, 959 &latency, 960 flags, 961 hasOffloadInfo ? &offloadInfo : NULL); 962 ALOGV("OPEN_OUTPUT output, %p", output); 963 reply->writeInt32((int32_t) output); 964 reply->writeInt32(devices); 965 reply->writeInt32(samplingRate); 966 reply->writeInt32(format); 967 reply->writeInt32(channelMask); 968 reply->writeInt32(latency); 969 return NO_ERROR; 970 } break; 971 case OPEN_DUPLICATE_OUTPUT: { 972 CHECK_INTERFACE(IAudioFlinger, data, reply); 973 audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32(); 974 audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32(); 975 reply->writeInt32((int32_t) openDuplicateOutput(output1, output2)); 976 return NO_ERROR; 977 } break; 978 case CLOSE_OUTPUT: { 979 CHECK_INTERFACE(IAudioFlinger, data, reply); 980 reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32())); 981 return NO_ERROR; 982 } break; 983 case SUSPEND_OUTPUT: { 984 CHECK_INTERFACE(IAudioFlinger, data, reply); 985 reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32())); 986 return NO_ERROR; 987 } break; 988 case RESTORE_OUTPUT: { 989 CHECK_INTERFACE(IAudioFlinger, data, reply); 990 reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32())); 991 return NO_ERROR; 992 } break; 993 case OPEN_INPUT: { 994 CHECK_INTERFACE(IAudioFlinger, data, reply); 995 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 996 audio_devices_t devices = (audio_devices_t)data.readInt32(); 997 uint32_t samplingRate = data.readInt32(); 998 audio_format_t format = (audio_format_t) data.readInt32(); 999 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 1000 1001 audio_io_handle_t input = openInput(module, 1002 &devices, 1003 &samplingRate, 1004 &format, 1005 &channelMask); 1006 reply->writeInt32((int32_t) input); 1007 reply->writeInt32(devices); 1008 reply->writeInt32(samplingRate); 1009 reply->writeInt32(format); 1010 reply->writeInt32(channelMask); 1011 return NO_ERROR; 1012 } break; 1013 case CLOSE_INPUT: { 1014 CHECK_INTERFACE(IAudioFlinger, data, reply); 1015 reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32())); 1016 return NO_ERROR; 1017 } break; 1018 case SET_STREAM_OUTPUT: { 1019 CHECK_INTERFACE(IAudioFlinger, data, reply); 1020 uint32_t stream = data.readInt32(); 1021 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1022 reply->writeInt32(setStreamOutput((audio_stream_type_t) stream, output)); 1023 return NO_ERROR; 1024 } break; 1025 case SET_VOICE_VOLUME: { 1026 CHECK_INTERFACE(IAudioFlinger, data, reply); 1027 float volume = data.readFloat(); 1028 reply->writeInt32( setVoiceVolume(volume) ); 1029 return NO_ERROR; 1030 } break; 1031 case GET_RENDER_POSITION: { 1032 CHECK_INTERFACE(IAudioFlinger, data, reply); 1033 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1034 size_t halFrames; 1035 size_t dspFrames; 1036 status_t status = getRenderPosition(&halFrames, &dspFrames, output); 1037 reply->writeInt32(status); 1038 if (status == NO_ERROR) { 1039 reply->writeInt32(halFrames); 1040 reply->writeInt32(dspFrames); 1041 } 1042 return NO_ERROR; 1043 } 1044 case GET_INPUT_FRAMES_LOST: { 1045 CHECK_INTERFACE(IAudioFlinger, data, reply); 1046 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 1047 reply->writeInt32(getInputFramesLost(ioHandle)); 1048 return NO_ERROR; 1049 } break; 1050 case NEW_AUDIO_SESSION_ID: { 1051 CHECK_INTERFACE(IAudioFlinger, data, reply); 1052 reply->writeInt32(newAudioSessionId()); 1053 return NO_ERROR; 1054 } break; 1055 case ACQUIRE_AUDIO_SESSION_ID: { 1056 CHECK_INTERFACE(IAudioFlinger, data, reply); 1057 int audioSession = data.readInt32(); 1058 acquireAudioSessionId(audioSession); 1059 return NO_ERROR; 1060 } break; 1061 case RELEASE_AUDIO_SESSION_ID: { 1062 CHECK_INTERFACE(IAudioFlinger, data, reply); 1063 int audioSession = data.readInt32(); 1064 releaseAudioSessionId(audioSession); 1065 return NO_ERROR; 1066 } break; 1067 case QUERY_NUM_EFFECTS: { 1068 CHECK_INTERFACE(IAudioFlinger, data, reply); 1069 uint32_t numEffects; 1070 status_t status = queryNumberEffects(&numEffects); 1071 reply->writeInt32(status); 1072 if (status == NO_ERROR) { 1073 reply->writeInt32((int32_t)numEffects); 1074 } 1075 return NO_ERROR; 1076 } 1077 case QUERY_EFFECT: { 1078 CHECK_INTERFACE(IAudioFlinger, data, reply); 1079 effect_descriptor_t desc; 1080 status_t status = queryEffect(data.readInt32(), &desc); 1081 reply->writeInt32(status); 1082 if (status == NO_ERROR) { 1083 reply->write(&desc, sizeof(effect_descriptor_t)); 1084 } 1085 return NO_ERROR; 1086 } 1087 case GET_EFFECT_DESCRIPTOR: { 1088 CHECK_INTERFACE(IAudioFlinger, data, reply); 1089 effect_uuid_t uuid; 1090 data.read(&uuid, sizeof(effect_uuid_t)); 1091 effect_descriptor_t desc; 1092 status_t status = getEffectDescriptor(&uuid, &desc); 1093 reply->writeInt32(status); 1094 if (status == NO_ERROR) { 1095 reply->write(&desc, sizeof(effect_descriptor_t)); 1096 } 1097 return NO_ERROR; 1098 } 1099 case CREATE_EFFECT: { 1100 CHECK_INTERFACE(IAudioFlinger, data, reply); 1101 effect_descriptor_t desc; 1102 data.read(&desc, sizeof(effect_descriptor_t)); 1103 sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder()); 1104 int32_t priority = data.readInt32(); 1105 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1106 int sessionId = data.readInt32(); 1107 status_t status; 1108 int id; 1109 int enabled; 1110 1111 sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId, 1112 &status, &id, &enabled); 1113 reply->writeInt32(status); 1114 reply->writeInt32(id); 1115 reply->writeInt32(enabled); 1116 reply->writeStrongBinder(effect->asBinder()); 1117 reply->write(&desc, sizeof(effect_descriptor_t)); 1118 return NO_ERROR; 1119 } break; 1120 case MOVE_EFFECTS: { 1121 CHECK_INTERFACE(IAudioFlinger, data, reply); 1122 int session = data.readInt32(); 1123 audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32(); 1124 audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32(); 1125 reply->writeInt32(moveEffects(session, srcOutput, dstOutput)); 1126 return NO_ERROR; 1127 } break; 1128 case LOAD_HW_MODULE: { 1129 CHECK_INTERFACE(IAudioFlinger, data, reply); 1130 reply->writeInt32(loadHwModule(data.readCString())); 1131 return NO_ERROR; 1132 } break; 1133 case GET_PRIMARY_OUTPUT_SAMPLING_RATE: { 1134 CHECK_INTERFACE(IAudioFlinger, data, reply); 1135 reply->writeInt32(getPrimaryOutputSamplingRate()); 1136 return NO_ERROR; 1137 } break; 1138 case GET_PRIMARY_OUTPUT_FRAME_COUNT: { 1139 CHECK_INTERFACE(IAudioFlinger, data, reply); 1140 reply->writeInt32(getPrimaryOutputFrameCount()); 1141 return NO_ERROR; 1142 } break; 1143 case SET_LOW_RAM_DEVICE: { 1144 CHECK_INTERFACE(IAudioFlinger, data, reply); 1145 bool isLowRamDevice = data.readInt32() != 0; 1146 reply->writeInt32(setLowRamDevice(isLowRamDevice)); 1147 return NO_ERROR; 1148 } break; 1149 default: 1150 return BBinder::onTransact(code, data, reply, flags); 1151 } 1152} 1153 1154// ---------------------------------------------------------------------------- 1155 1156}; // namespace android 1157