IAudioFlinger.cpp revision d2304db2fcb5112292105a0949a55986a4c9875f
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 INVALIDATE_STREAM, 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 *pFrameCount, 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 size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0; 110 data.writeInt32(frameCount); 111 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 112 data.writeInt32(lFlags); 113 if (sharedBuffer != 0) { 114 data.writeInt32(true); 115 data.writeStrongBinder(sharedBuffer->asBinder()); 116 } else { 117 data.writeInt32(false); 118 } 119 data.writeInt32((int32_t) output); 120 data.writeInt32((int32_t) tid); 121 int lSessionId = AUDIO_SESSION_ALLOCATE; 122 if (sessionId != NULL) { 123 lSessionId = *sessionId; 124 } 125 data.writeInt32(lSessionId); 126 data.writeInt32(clientUid); 127 status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply); 128 if (lStatus != NO_ERROR) { 129 ALOGE("createTrack error: %s", strerror(-lStatus)); 130 } else { 131 frameCount = reply.readInt32(); 132 if (pFrameCount != NULL) { 133 *pFrameCount = frameCount; 134 } 135 lFlags = reply.readInt32(); 136 if (flags != NULL) { 137 *flags = lFlags; 138 } 139 lSessionId = reply.readInt32(); 140 if (sessionId != NULL) { 141 *sessionId = lSessionId; 142 } 143 name = reply.readString8(); 144 lStatus = reply.readInt32(); 145 track = interface_cast<IAudioTrack>(reply.readStrongBinder()); 146 if (lStatus == NO_ERROR) { 147 if (track == 0) { 148 ALOGE("createTrack should have returned an IAudioTrack"); 149 lStatus = UNKNOWN_ERROR; 150 } 151 } else { 152 if (track != 0) { 153 ALOGE("createTrack returned an IAudioTrack but with status %d", lStatus); 154 track.clear(); 155 } 156 } 157 } 158 if (status != NULL) { 159 *status = lStatus; 160 } 161 return track; 162 } 163 164 virtual sp<IAudioRecord> openRecord( 165 audio_io_handle_t input, 166 uint32_t sampleRate, 167 audio_format_t format, 168 audio_channel_mask_t channelMask, 169 size_t *pFrameCount, 170 track_flags_t *flags, 171 pid_t tid, 172 int *sessionId, 173 status_t *status) 174 { 175 Parcel data, reply; 176 sp<IAudioRecord> record; 177 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 178 data.writeInt32((int32_t) input); 179 data.writeInt32(sampleRate); 180 data.writeInt32(format); 181 data.writeInt32(channelMask); 182 size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0; 183 data.writeInt32(frameCount); 184 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 185 data.writeInt32(lFlags); 186 data.writeInt32((int32_t) tid); 187 int lSessionId = AUDIO_SESSION_ALLOCATE; 188 if (sessionId != NULL) { 189 lSessionId = *sessionId; 190 } 191 data.writeInt32(lSessionId); 192 status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply); 193 if (lStatus != NO_ERROR) { 194 ALOGE("openRecord error: %s", strerror(-lStatus)); 195 } else { 196 frameCount = reply.readInt32(); 197 if (pFrameCount != NULL) { 198 *pFrameCount = frameCount; 199 } 200 lFlags = reply.readInt32(); 201 if (flags != NULL) { 202 *flags = lFlags; 203 } 204 lSessionId = reply.readInt32(); 205 if (sessionId != NULL) { 206 *sessionId = lSessionId; 207 } 208 lStatus = reply.readInt32(); 209 record = interface_cast<IAudioRecord>(reply.readStrongBinder()); 210 if (lStatus == NO_ERROR) { 211 if (record == 0) { 212 ALOGE("openRecord should have returned an IAudioRecord"); 213 lStatus = UNKNOWN_ERROR; 214 } 215 } else { 216 if (record != 0) { 217 ALOGE("openRecord returned an IAudioRecord but with status %d", lStatus); 218 record.clear(); 219 } 220 } 221 } 222 if (status != NULL) { 223 *status = lStatus; 224 } 225 return record; 226 } 227 228 virtual uint32_t sampleRate(audio_io_handle_t output) const 229 { 230 Parcel data, reply; 231 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 232 data.writeInt32((int32_t) output); 233 remote()->transact(SAMPLE_RATE, data, &reply); 234 return reply.readInt32(); 235 } 236 237 virtual audio_format_t format(audio_io_handle_t output) const 238 { 239 Parcel data, reply; 240 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 241 data.writeInt32((int32_t) output); 242 remote()->transact(FORMAT, data, &reply); 243 return (audio_format_t) reply.readInt32(); 244 } 245 246 virtual size_t frameCount(audio_io_handle_t output) const 247 { 248 Parcel data, reply; 249 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 250 data.writeInt32((int32_t) output); 251 remote()->transact(FRAME_COUNT, data, &reply); 252 return reply.readInt32(); 253 } 254 255 virtual uint32_t latency(audio_io_handle_t output) const 256 { 257 Parcel data, reply; 258 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 259 data.writeInt32((int32_t) output); 260 remote()->transact(LATENCY, data, &reply); 261 return reply.readInt32(); 262 } 263 264 virtual status_t setMasterVolume(float value) 265 { 266 Parcel data, reply; 267 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 268 data.writeFloat(value); 269 remote()->transact(SET_MASTER_VOLUME, data, &reply); 270 return reply.readInt32(); 271 } 272 273 virtual status_t setMasterMute(bool muted) 274 { 275 Parcel data, reply; 276 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 277 data.writeInt32(muted); 278 remote()->transact(SET_MASTER_MUTE, data, &reply); 279 return reply.readInt32(); 280 } 281 282 virtual float masterVolume() const 283 { 284 Parcel data, reply; 285 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 286 remote()->transact(MASTER_VOLUME, data, &reply); 287 return reply.readFloat(); 288 } 289 290 virtual bool masterMute() const 291 { 292 Parcel data, reply; 293 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 294 remote()->transact(MASTER_MUTE, data, &reply); 295 return reply.readInt32(); 296 } 297 298 virtual status_t setStreamVolume(audio_stream_type_t stream, float value, 299 audio_io_handle_t output) 300 { 301 Parcel data, reply; 302 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 303 data.writeInt32((int32_t) stream); 304 data.writeFloat(value); 305 data.writeInt32((int32_t) output); 306 remote()->transact(SET_STREAM_VOLUME, data, &reply); 307 return reply.readInt32(); 308 } 309 310 virtual status_t setStreamMute(audio_stream_type_t stream, bool muted) 311 { 312 Parcel data, reply; 313 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 314 data.writeInt32((int32_t) stream); 315 data.writeInt32(muted); 316 remote()->transact(SET_STREAM_MUTE, data, &reply); 317 return reply.readInt32(); 318 } 319 320 virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const 321 { 322 Parcel data, reply; 323 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 324 data.writeInt32((int32_t) stream); 325 data.writeInt32((int32_t) output); 326 remote()->transact(STREAM_VOLUME, data, &reply); 327 return reply.readFloat(); 328 } 329 330 virtual bool streamMute(audio_stream_type_t stream) const 331 { 332 Parcel data, reply; 333 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 334 data.writeInt32((int32_t) stream); 335 remote()->transact(STREAM_MUTE, data, &reply); 336 return reply.readInt32(); 337 } 338 339 virtual status_t setMode(audio_mode_t mode) 340 { 341 Parcel data, reply; 342 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 343 data.writeInt32(mode); 344 remote()->transact(SET_MODE, data, &reply); 345 return reply.readInt32(); 346 } 347 348 virtual status_t setMicMute(bool state) 349 { 350 Parcel data, reply; 351 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 352 data.writeInt32(state); 353 remote()->transact(SET_MIC_MUTE, data, &reply); 354 return reply.readInt32(); 355 } 356 357 virtual bool getMicMute() const 358 { 359 Parcel data, reply; 360 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 361 remote()->transact(GET_MIC_MUTE, data, &reply); 362 return reply.readInt32(); 363 } 364 365 virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs) 366 { 367 Parcel data, reply; 368 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 369 data.writeInt32((int32_t) ioHandle); 370 data.writeString8(keyValuePairs); 371 remote()->transact(SET_PARAMETERS, data, &reply); 372 return reply.readInt32(); 373 } 374 375 virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const 376 { 377 Parcel data, reply; 378 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 379 data.writeInt32((int32_t) ioHandle); 380 data.writeString8(keys); 381 remote()->transact(GET_PARAMETERS, data, &reply); 382 return reply.readString8(); 383 } 384 385 virtual void registerClient(const sp<IAudioFlingerClient>& client) 386 { 387 Parcel data, reply; 388 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 389 data.writeStrongBinder(client->asBinder()); 390 remote()->transact(REGISTER_CLIENT, data, &reply); 391 } 392 393 virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 394 audio_channel_mask_t channelMask) const 395 { 396 Parcel data, reply; 397 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 398 data.writeInt32(sampleRate); 399 data.writeInt32(format); 400 data.writeInt32(channelMask); 401 remote()->transact(GET_INPUTBUFFERSIZE, data, &reply); 402 return reply.readInt32(); 403 } 404 405 virtual audio_io_handle_t openOutput(audio_module_handle_t module, 406 audio_devices_t *pDevices, 407 uint32_t *pSamplingRate, 408 audio_format_t *pFormat, 409 audio_channel_mask_t *pChannelMask, 410 uint32_t *pLatencyMs, 411 audio_output_flags_t flags, 412 const audio_offload_info_t *offloadInfo) 413 { 414 Parcel data, reply; 415 audio_devices_t devices = pDevices != NULL ? *pDevices : (audio_devices_t)0; 416 uint32_t samplingRate = pSamplingRate != NULL ? *pSamplingRate : 0; 417 audio_format_t format = pFormat != NULL ? *pFormat : AUDIO_FORMAT_DEFAULT; 418 audio_channel_mask_t channelMask = pChannelMask != NULL ? 419 *pChannelMask : (audio_channel_mask_t)0; 420 uint32_t latency = pLatencyMs != NULL ? *pLatencyMs : 0; 421 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 422 data.writeInt32(module); 423 data.writeInt32(devices); 424 data.writeInt32(samplingRate); 425 data.writeInt32(format); 426 data.writeInt32(channelMask); 427 data.writeInt32(latency); 428 data.writeInt32((int32_t) flags); 429 if (offloadInfo == NULL) { 430 data.writeInt32(0); 431 } else { 432 data.writeInt32(1); 433 data.write(offloadInfo, sizeof(audio_offload_info_t)); 434 } 435 remote()->transact(OPEN_OUTPUT, data, &reply); 436 audio_io_handle_t output = (audio_io_handle_t) reply.readInt32(); 437 ALOGV("openOutput() returned output, %d", output); 438 devices = (audio_devices_t)reply.readInt32(); 439 if (pDevices != NULL) { 440 *pDevices = devices; 441 } 442 samplingRate = reply.readInt32(); 443 if (pSamplingRate != NULL) { 444 *pSamplingRate = samplingRate; 445 } 446 format = (audio_format_t) reply.readInt32(); 447 if (pFormat != NULL) { 448 *pFormat = format; 449 } 450 channelMask = (audio_channel_mask_t)reply.readInt32(); 451 if (pChannelMask != NULL) { 452 *pChannelMask = channelMask; 453 } 454 latency = reply.readInt32(); 455 if (pLatencyMs != NULL) { 456 *pLatencyMs = latency; 457 } 458 return output; 459 } 460 461 virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, 462 audio_io_handle_t output2) 463 { 464 Parcel data, reply; 465 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 466 data.writeInt32((int32_t) output1); 467 data.writeInt32((int32_t) output2); 468 remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply); 469 return (audio_io_handle_t) reply.readInt32(); 470 } 471 472 virtual status_t closeOutput(audio_io_handle_t output) 473 { 474 Parcel data, reply; 475 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 476 data.writeInt32((int32_t) output); 477 remote()->transact(CLOSE_OUTPUT, data, &reply); 478 return reply.readInt32(); 479 } 480 481 virtual status_t suspendOutput(audio_io_handle_t output) 482 { 483 Parcel data, reply; 484 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 485 data.writeInt32((int32_t) output); 486 remote()->transact(SUSPEND_OUTPUT, data, &reply); 487 return reply.readInt32(); 488 } 489 490 virtual status_t restoreOutput(audio_io_handle_t output) 491 { 492 Parcel data, reply; 493 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 494 data.writeInt32((int32_t) output); 495 remote()->transact(RESTORE_OUTPUT, data, &reply); 496 return reply.readInt32(); 497 } 498 499 virtual audio_io_handle_t openInput(audio_module_handle_t module, 500 audio_devices_t *pDevices, 501 uint32_t *pSamplingRate, 502 audio_format_t *pFormat, 503 audio_channel_mask_t *pChannelMask) 504 { 505 Parcel data, reply; 506 audio_devices_t devices = pDevices != NULL ? *pDevices : (audio_devices_t)0; 507 uint32_t samplingRate = pSamplingRate != NULL ? *pSamplingRate : 0; 508 audio_format_t format = pFormat != NULL ? *pFormat : AUDIO_FORMAT_DEFAULT; 509 audio_channel_mask_t channelMask = pChannelMask != NULL ? 510 *pChannelMask : (audio_channel_mask_t)0; 511 512 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 513 data.writeInt32(module); 514 data.writeInt32(devices); 515 data.writeInt32(samplingRate); 516 data.writeInt32(format); 517 data.writeInt32(channelMask); 518 remote()->transact(OPEN_INPUT, data, &reply); 519 audio_io_handle_t input = (audio_io_handle_t) reply.readInt32(); 520 devices = (audio_devices_t)reply.readInt32(); 521 if (pDevices != NULL) { 522 *pDevices = devices; 523 } 524 samplingRate = reply.readInt32(); 525 if (pSamplingRate != NULL) { 526 *pSamplingRate = samplingRate; 527 } 528 format = (audio_format_t) reply.readInt32(); 529 if (pFormat != NULL) { 530 *pFormat = format; 531 } 532 channelMask = (audio_channel_mask_t)reply.readInt32(); 533 if (pChannelMask != NULL) { 534 *pChannelMask = channelMask; 535 } 536 return input; 537 } 538 539 virtual status_t closeInput(int input) 540 { 541 Parcel data, reply; 542 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 543 data.writeInt32(input); 544 remote()->transact(CLOSE_INPUT, data, &reply); 545 return reply.readInt32(); 546 } 547 548 virtual status_t invalidateStream(audio_stream_type_t stream) 549 { 550 Parcel data, reply; 551 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 552 data.writeInt32((int32_t) stream); 553 remote()->transact(INVALIDATE_STREAM, data, &reply); 554 return reply.readInt32(); 555 } 556 557 virtual status_t setVoiceVolume(float volume) 558 { 559 Parcel data, reply; 560 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 561 data.writeFloat(volume); 562 remote()->transact(SET_VOICE_VOLUME, data, &reply); 563 return reply.readInt32(); 564 } 565 566 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, 567 audio_io_handle_t output) const 568 { 569 Parcel data, reply; 570 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 571 data.writeInt32((int32_t) output); 572 remote()->transact(GET_RENDER_POSITION, data, &reply); 573 status_t status = reply.readInt32(); 574 if (status == NO_ERROR) { 575 uint32_t tmp = reply.readInt32(); 576 if (halFrames != NULL) { 577 *halFrames = tmp; 578 } 579 tmp = reply.readInt32(); 580 if (dspFrames != NULL) { 581 *dspFrames = tmp; 582 } 583 } 584 return status; 585 } 586 587 virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const 588 { 589 Parcel data, reply; 590 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 591 data.writeInt32((int32_t) ioHandle); 592 status_t status = remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply); 593 if (status != NO_ERROR) { 594 return 0; 595 } 596 return (uint32_t) reply.readInt32(); 597 } 598 599 virtual int newAudioSessionId() 600 { 601 Parcel data, reply; 602 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 603 status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply); 604 int id = 0; 605 if (status == NO_ERROR) { 606 id = reply.readInt32(); 607 } 608 return id; 609 } 610 611 virtual void acquireAudioSessionId(int audioSession, int pid) 612 { 613 Parcel data, reply; 614 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 615 data.writeInt32(audioSession); 616 data.writeInt32(pid); 617 remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply); 618 } 619 620 virtual void releaseAudioSessionId(int audioSession, int pid) 621 { 622 Parcel data, reply; 623 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 624 data.writeInt32(audioSession); 625 data.writeInt32(pid); 626 remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply); 627 } 628 629 virtual status_t queryNumberEffects(uint32_t *numEffects) const 630 { 631 Parcel data, reply; 632 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 633 status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply); 634 if (status != NO_ERROR) { 635 return status; 636 } 637 status = reply.readInt32(); 638 if (status != NO_ERROR) { 639 return status; 640 } 641 if (numEffects != NULL) { 642 *numEffects = (uint32_t)reply.readInt32(); 643 } 644 return NO_ERROR; 645 } 646 647 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const 648 { 649 if (pDescriptor == NULL) { 650 return BAD_VALUE; 651 } 652 Parcel data, reply; 653 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 654 data.writeInt32(index); 655 status_t status = remote()->transact(QUERY_EFFECT, data, &reply); 656 if (status != NO_ERROR) { 657 return status; 658 } 659 status = reply.readInt32(); 660 if (status != NO_ERROR) { 661 return status; 662 } 663 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 664 return NO_ERROR; 665 } 666 667 virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid, 668 effect_descriptor_t *pDescriptor) const 669 { 670 if (pUuid == NULL || pDescriptor == NULL) { 671 return BAD_VALUE; 672 } 673 Parcel data, reply; 674 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 675 data.write(pUuid, sizeof(effect_uuid_t)); 676 status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply); 677 if (status != NO_ERROR) { 678 return status; 679 } 680 status = reply.readInt32(); 681 if (status != NO_ERROR) { 682 return status; 683 } 684 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 685 return NO_ERROR; 686 } 687 688 virtual sp<IEffect> createEffect( 689 effect_descriptor_t *pDesc, 690 const sp<IEffectClient>& client, 691 int32_t priority, 692 audio_io_handle_t output, 693 int sessionId, 694 status_t *status, 695 int *id, 696 int *enabled) 697 { 698 Parcel data, reply; 699 sp<IEffect> effect; 700 701 if (pDesc == NULL) { 702 return effect; 703 if (status != NULL) { 704 *status = BAD_VALUE; 705 } 706 } 707 708 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 709 data.write(pDesc, sizeof(effect_descriptor_t)); 710 data.writeStrongBinder(client->asBinder()); 711 data.writeInt32(priority); 712 data.writeInt32((int32_t) output); 713 data.writeInt32(sessionId); 714 715 status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply); 716 if (lStatus != NO_ERROR) { 717 ALOGE("createEffect error: %s", strerror(-lStatus)); 718 } else { 719 lStatus = reply.readInt32(); 720 int tmp = reply.readInt32(); 721 if (id != NULL) { 722 *id = tmp; 723 } 724 tmp = reply.readInt32(); 725 if (enabled != NULL) { 726 *enabled = tmp; 727 } 728 effect = interface_cast<IEffect>(reply.readStrongBinder()); 729 reply.read(pDesc, sizeof(effect_descriptor_t)); 730 } 731 if (status != NULL) { 732 *status = lStatus; 733 } 734 735 return effect; 736 } 737 738 virtual status_t moveEffects(int session, audio_io_handle_t srcOutput, 739 audio_io_handle_t dstOutput) 740 { 741 Parcel data, reply; 742 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 743 data.writeInt32(session); 744 data.writeInt32((int32_t) srcOutput); 745 data.writeInt32((int32_t) dstOutput); 746 remote()->transact(MOVE_EFFECTS, data, &reply); 747 return reply.readInt32(); 748 } 749 750 virtual audio_module_handle_t loadHwModule(const char *name) 751 { 752 Parcel data, reply; 753 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 754 data.writeCString(name); 755 remote()->transact(LOAD_HW_MODULE, data, &reply); 756 return (audio_module_handle_t) reply.readInt32(); 757 } 758 759 virtual uint32_t getPrimaryOutputSamplingRate() 760 { 761 Parcel data, reply; 762 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 763 remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply); 764 return reply.readInt32(); 765 } 766 767 virtual size_t getPrimaryOutputFrameCount() 768 { 769 Parcel data, reply; 770 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 771 remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply); 772 return reply.readInt32(); 773 } 774 775 virtual status_t setLowRamDevice(bool isLowRamDevice) 776 { 777 Parcel data, reply; 778 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 779 data.writeInt32((int) isLowRamDevice); 780 remote()->transact(SET_LOW_RAM_DEVICE, data, &reply); 781 return reply.readInt32(); 782 } 783 784}; 785 786IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger"); 787 788// ---------------------------------------------------------------------- 789 790status_t BnAudioFlinger::onTransact( 791 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 792{ 793 switch (code) { 794 case CREATE_TRACK: { 795 CHECK_INTERFACE(IAudioFlinger, data, reply); 796 int streamType = data.readInt32(); 797 uint32_t sampleRate = data.readInt32(); 798 audio_format_t format = (audio_format_t) data.readInt32(); 799 audio_channel_mask_t channelMask = data.readInt32(); 800 size_t frameCount = data.readInt32(); 801 track_flags_t flags = (track_flags_t) data.readInt32(); 802 bool haveSharedBuffer = data.readInt32() != 0; 803 sp<IMemory> buffer; 804 if (haveSharedBuffer) { 805 buffer = interface_cast<IMemory>(data.readStrongBinder()); 806 } 807 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 808 pid_t tid = (pid_t) data.readInt32(); 809 int sessionId = data.readInt32(); 810 int clientUid = data.readInt32(); 811 String8 name; 812 status_t status; 813 sp<IAudioTrack> track; 814 if ((haveSharedBuffer && (buffer == 0)) || 815 ((buffer != 0) && (buffer->pointer() == NULL))) { 816 ALOGW("CREATE_TRACK: cannot retrieve shared memory"); 817 status = DEAD_OBJECT; 818 } else { 819 track = createTrack( 820 (audio_stream_type_t) streamType, sampleRate, format, 821 channelMask, &frameCount, &flags, buffer, output, tid, 822 &sessionId, name, clientUid, &status); 823 LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR)); 824 } 825 reply->writeInt32(frameCount); 826 reply->writeInt32(flags); 827 reply->writeInt32(sessionId); 828 reply->writeString8(name); 829 reply->writeInt32(status); 830 reply->writeStrongBinder(track->asBinder()); 831 return NO_ERROR; 832 } break; 833 case OPEN_RECORD: { 834 CHECK_INTERFACE(IAudioFlinger, data, reply); 835 audio_io_handle_t input = (audio_io_handle_t) data.readInt32(); 836 uint32_t sampleRate = data.readInt32(); 837 audio_format_t format = (audio_format_t) data.readInt32(); 838 audio_channel_mask_t channelMask = data.readInt32(); 839 size_t frameCount = data.readInt32(); 840 track_flags_t flags = (track_flags_t) data.readInt32(); 841 pid_t tid = (pid_t) data.readInt32(); 842 int sessionId = data.readInt32(); 843 status_t status; 844 sp<IAudioRecord> record = openRecord(input, 845 sampleRate, format, channelMask, &frameCount, &flags, tid, &sessionId, &status); 846 LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR)); 847 reply->writeInt32(frameCount); 848 reply->writeInt32(flags); 849 reply->writeInt32(sessionId); 850 reply->writeInt32(status); 851 reply->writeStrongBinder(record->asBinder()); 852 return NO_ERROR; 853 } break; 854 case SAMPLE_RATE: { 855 CHECK_INTERFACE(IAudioFlinger, data, reply); 856 reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) ); 857 return NO_ERROR; 858 } break; 859 case FORMAT: { 860 CHECK_INTERFACE(IAudioFlinger, data, reply); 861 reply->writeInt32( format((audio_io_handle_t) data.readInt32()) ); 862 return NO_ERROR; 863 } break; 864 case FRAME_COUNT: { 865 CHECK_INTERFACE(IAudioFlinger, data, reply); 866 reply->writeInt32( frameCount((audio_io_handle_t) data.readInt32()) ); 867 return NO_ERROR; 868 } break; 869 case LATENCY: { 870 CHECK_INTERFACE(IAudioFlinger, data, reply); 871 reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) ); 872 return NO_ERROR; 873 } break; 874 case SET_MASTER_VOLUME: { 875 CHECK_INTERFACE(IAudioFlinger, data, reply); 876 reply->writeInt32( setMasterVolume(data.readFloat()) ); 877 return NO_ERROR; 878 } break; 879 case SET_MASTER_MUTE: { 880 CHECK_INTERFACE(IAudioFlinger, data, reply); 881 reply->writeInt32( setMasterMute(data.readInt32()) ); 882 return NO_ERROR; 883 } break; 884 case MASTER_VOLUME: { 885 CHECK_INTERFACE(IAudioFlinger, data, reply); 886 reply->writeFloat( masterVolume() ); 887 return NO_ERROR; 888 } break; 889 case MASTER_MUTE: { 890 CHECK_INTERFACE(IAudioFlinger, data, reply); 891 reply->writeInt32( masterMute() ); 892 return NO_ERROR; 893 } break; 894 case SET_STREAM_VOLUME: { 895 CHECK_INTERFACE(IAudioFlinger, data, reply); 896 int stream = data.readInt32(); 897 float volume = data.readFloat(); 898 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 899 reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) ); 900 return NO_ERROR; 901 } break; 902 case SET_STREAM_MUTE: { 903 CHECK_INTERFACE(IAudioFlinger, data, reply); 904 int stream = data.readInt32(); 905 reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) ); 906 return NO_ERROR; 907 } break; 908 case STREAM_VOLUME: { 909 CHECK_INTERFACE(IAudioFlinger, data, reply); 910 int stream = data.readInt32(); 911 int output = data.readInt32(); 912 reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) ); 913 return NO_ERROR; 914 } break; 915 case STREAM_MUTE: { 916 CHECK_INTERFACE(IAudioFlinger, data, reply); 917 int stream = data.readInt32(); 918 reply->writeInt32( streamMute((audio_stream_type_t) stream) ); 919 return NO_ERROR; 920 } break; 921 case SET_MODE: { 922 CHECK_INTERFACE(IAudioFlinger, data, reply); 923 audio_mode_t mode = (audio_mode_t) data.readInt32(); 924 reply->writeInt32( setMode(mode) ); 925 return NO_ERROR; 926 } break; 927 case SET_MIC_MUTE: { 928 CHECK_INTERFACE(IAudioFlinger, data, reply); 929 int state = data.readInt32(); 930 reply->writeInt32( setMicMute(state) ); 931 return NO_ERROR; 932 } break; 933 case GET_MIC_MUTE: { 934 CHECK_INTERFACE(IAudioFlinger, data, reply); 935 reply->writeInt32( getMicMute() ); 936 return NO_ERROR; 937 } break; 938 case SET_PARAMETERS: { 939 CHECK_INTERFACE(IAudioFlinger, data, reply); 940 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 941 String8 keyValuePairs(data.readString8()); 942 reply->writeInt32(setParameters(ioHandle, keyValuePairs)); 943 return NO_ERROR; 944 } break; 945 case GET_PARAMETERS: { 946 CHECK_INTERFACE(IAudioFlinger, data, reply); 947 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 948 String8 keys(data.readString8()); 949 reply->writeString8(getParameters(ioHandle, keys)); 950 return NO_ERROR; 951 } break; 952 953 case REGISTER_CLIENT: { 954 CHECK_INTERFACE(IAudioFlinger, data, reply); 955 sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>( 956 data.readStrongBinder()); 957 registerClient(client); 958 return NO_ERROR; 959 } break; 960 case GET_INPUTBUFFERSIZE: { 961 CHECK_INTERFACE(IAudioFlinger, data, reply); 962 uint32_t sampleRate = data.readInt32(); 963 audio_format_t format = (audio_format_t) data.readInt32(); 964 audio_channel_mask_t channelMask = data.readInt32(); 965 reply->writeInt32( getInputBufferSize(sampleRate, format, channelMask) ); 966 return NO_ERROR; 967 } break; 968 case OPEN_OUTPUT: { 969 CHECK_INTERFACE(IAudioFlinger, data, reply); 970 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 971 audio_devices_t devices = (audio_devices_t)data.readInt32(); 972 uint32_t samplingRate = data.readInt32(); 973 audio_format_t format = (audio_format_t) data.readInt32(); 974 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 975 uint32_t latency = data.readInt32(); 976 audio_output_flags_t flags = (audio_output_flags_t) data.readInt32(); 977 bool hasOffloadInfo = data.readInt32() != 0; 978 audio_offload_info_t offloadInfo; 979 if (hasOffloadInfo) { 980 data.read(&offloadInfo, sizeof(audio_offload_info_t)); 981 } 982 audio_io_handle_t output = openOutput(module, 983 &devices, 984 &samplingRate, 985 &format, 986 &channelMask, 987 &latency, 988 flags, 989 hasOffloadInfo ? &offloadInfo : NULL); 990 ALOGV("OPEN_OUTPUT output, %d", output); 991 reply->writeInt32((int32_t) output); 992 reply->writeInt32(devices); 993 reply->writeInt32(samplingRate); 994 reply->writeInt32(format); 995 reply->writeInt32(channelMask); 996 reply->writeInt32(latency); 997 return NO_ERROR; 998 } break; 999 case OPEN_DUPLICATE_OUTPUT: { 1000 CHECK_INTERFACE(IAudioFlinger, data, reply); 1001 audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32(); 1002 audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32(); 1003 reply->writeInt32((int32_t) openDuplicateOutput(output1, output2)); 1004 return NO_ERROR; 1005 } break; 1006 case CLOSE_OUTPUT: { 1007 CHECK_INTERFACE(IAudioFlinger, data, reply); 1008 reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32())); 1009 return NO_ERROR; 1010 } break; 1011 case SUSPEND_OUTPUT: { 1012 CHECK_INTERFACE(IAudioFlinger, data, reply); 1013 reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32())); 1014 return NO_ERROR; 1015 } break; 1016 case RESTORE_OUTPUT: { 1017 CHECK_INTERFACE(IAudioFlinger, data, reply); 1018 reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32())); 1019 return NO_ERROR; 1020 } break; 1021 case OPEN_INPUT: { 1022 CHECK_INTERFACE(IAudioFlinger, data, reply); 1023 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 1024 audio_devices_t devices = (audio_devices_t)data.readInt32(); 1025 uint32_t samplingRate = data.readInt32(); 1026 audio_format_t format = (audio_format_t) data.readInt32(); 1027 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 1028 1029 audio_io_handle_t input = openInput(module, 1030 &devices, 1031 &samplingRate, 1032 &format, 1033 &channelMask); 1034 reply->writeInt32((int32_t) input); 1035 reply->writeInt32(devices); 1036 reply->writeInt32(samplingRate); 1037 reply->writeInt32(format); 1038 reply->writeInt32(channelMask); 1039 return NO_ERROR; 1040 } break; 1041 case CLOSE_INPUT: { 1042 CHECK_INTERFACE(IAudioFlinger, data, reply); 1043 reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32())); 1044 return NO_ERROR; 1045 } break; 1046 case INVALIDATE_STREAM: { 1047 CHECK_INTERFACE(IAudioFlinger, data, reply); 1048 audio_stream_type_t stream = (audio_stream_type_t) data.readInt32(); 1049 reply->writeInt32(invalidateStream(stream)); 1050 return NO_ERROR; 1051 } break; 1052 case SET_VOICE_VOLUME: { 1053 CHECK_INTERFACE(IAudioFlinger, data, reply); 1054 float volume = data.readFloat(); 1055 reply->writeInt32( setVoiceVolume(volume) ); 1056 return NO_ERROR; 1057 } break; 1058 case GET_RENDER_POSITION: { 1059 CHECK_INTERFACE(IAudioFlinger, data, reply); 1060 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1061 uint32_t halFrames; 1062 uint32_t dspFrames; 1063 status_t status = getRenderPosition(&halFrames, &dspFrames, output); 1064 reply->writeInt32(status); 1065 if (status == NO_ERROR) { 1066 reply->writeInt32(halFrames); 1067 reply->writeInt32(dspFrames); 1068 } 1069 return NO_ERROR; 1070 } 1071 case GET_INPUT_FRAMES_LOST: { 1072 CHECK_INTERFACE(IAudioFlinger, data, reply); 1073 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 1074 reply->writeInt32((int32_t) getInputFramesLost(ioHandle)); 1075 return NO_ERROR; 1076 } break; 1077 case NEW_AUDIO_SESSION_ID: { 1078 CHECK_INTERFACE(IAudioFlinger, data, reply); 1079 reply->writeInt32(newAudioSessionId()); 1080 return NO_ERROR; 1081 } break; 1082 case ACQUIRE_AUDIO_SESSION_ID: { 1083 CHECK_INTERFACE(IAudioFlinger, data, reply); 1084 int audioSession = data.readInt32(); 1085 int pid = data.readInt32(); 1086 acquireAudioSessionId(audioSession, pid); 1087 return NO_ERROR; 1088 } break; 1089 case RELEASE_AUDIO_SESSION_ID: { 1090 CHECK_INTERFACE(IAudioFlinger, data, reply); 1091 int audioSession = data.readInt32(); 1092 int pid = data.readInt32(); 1093 releaseAudioSessionId(audioSession, pid); 1094 return NO_ERROR; 1095 } break; 1096 case QUERY_NUM_EFFECTS: { 1097 CHECK_INTERFACE(IAudioFlinger, data, reply); 1098 uint32_t numEffects; 1099 status_t status = queryNumberEffects(&numEffects); 1100 reply->writeInt32(status); 1101 if (status == NO_ERROR) { 1102 reply->writeInt32((int32_t)numEffects); 1103 } 1104 return NO_ERROR; 1105 } 1106 case QUERY_EFFECT: { 1107 CHECK_INTERFACE(IAudioFlinger, data, reply); 1108 effect_descriptor_t desc; 1109 status_t status = queryEffect(data.readInt32(), &desc); 1110 reply->writeInt32(status); 1111 if (status == NO_ERROR) { 1112 reply->write(&desc, sizeof(effect_descriptor_t)); 1113 } 1114 return NO_ERROR; 1115 } 1116 case GET_EFFECT_DESCRIPTOR: { 1117 CHECK_INTERFACE(IAudioFlinger, data, reply); 1118 effect_uuid_t uuid; 1119 data.read(&uuid, sizeof(effect_uuid_t)); 1120 effect_descriptor_t desc; 1121 status_t status = getEffectDescriptor(&uuid, &desc); 1122 reply->writeInt32(status); 1123 if (status == NO_ERROR) { 1124 reply->write(&desc, sizeof(effect_descriptor_t)); 1125 } 1126 return NO_ERROR; 1127 } 1128 case CREATE_EFFECT: { 1129 CHECK_INTERFACE(IAudioFlinger, data, reply); 1130 effect_descriptor_t desc; 1131 data.read(&desc, sizeof(effect_descriptor_t)); 1132 sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder()); 1133 int32_t priority = data.readInt32(); 1134 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1135 int sessionId = data.readInt32(); 1136 status_t status; 1137 int id; 1138 int enabled; 1139 1140 sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId, 1141 &status, &id, &enabled); 1142 reply->writeInt32(status); 1143 reply->writeInt32(id); 1144 reply->writeInt32(enabled); 1145 reply->writeStrongBinder(effect->asBinder()); 1146 reply->write(&desc, sizeof(effect_descriptor_t)); 1147 return NO_ERROR; 1148 } break; 1149 case MOVE_EFFECTS: { 1150 CHECK_INTERFACE(IAudioFlinger, data, reply); 1151 int session = data.readInt32(); 1152 audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32(); 1153 audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32(); 1154 reply->writeInt32(moveEffects(session, srcOutput, dstOutput)); 1155 return NO_ERROR; 1156 } break; 1157 case LOAD_HW_MODULE: { 1158 CHECK_INTERFACE(IAudioFlinger, data, reply); 1159 reply->writeInt32(loadHwModule(data.readCString())); 1160 return NO_ERROR; 1161 } break; 1162 case GET_PRIMARY_OUTPUT_SAMPLING_RATE: { 1163 CHECK_INTERFACE(IAudioFlinger, data, reply); 1164 reply->writeInt32(getPrimaryOutputSamplingRate()); 1165 return NO_ERROR; 1166 } break; 1167 case GET_PRIMARY_OUTPUT_FRAME_COUNT: { 1168 CHECK_INTERFACE(IAudioFlinger, data, reply); 1169 reply->writeInt32(getPrimaryOutputFrameCount()); 1170 return NO_ERROR; 1171 } break; 1172 case SET_LOW_RAM_DEVICE: { 1173 CHECK_INTERFACE(IAudioFlinger, data, reply); 1174 bool isLowRamDevice = data.readInt32() != 0; 1175 reply->writeInt32(setLowRamDevice(isLowRamDevice)); 1176 return NO_ERROR; 1177 } break; 1178 default: 1179 return BBinder::onTransact(code, data, reply, flags); 1180 } 1181} 1182 1183// ---------------------------------------------------------------------------- 1184 1185}; // namespace android 1186