IAudioFlinger.cpp revision 0cde076ddb283c84c3801a2df4cc3df99bd1577f
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 = AUDIO_SESSION_ALLOCATE; 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 if (lStatus == NO_ERROR) { 142 if (track == 0) { 143 ALOGE("createTrack should have returned an IAudioTrack"); 144 lStatus = UNKNOWN_ERROR; 145 } 146 } else { 147 if (track != 0) { 148 ALOGE("createTrack returned an IAudioTrack but with status %d", lStatus); 149 track.clear(); 150 } 151 } 152 } 153 if (status != NULL) { 154 *status = lStatus; 155 } 156 return track; 157 } 158 159 virtual sp<IAudioRecord> openRecord( 160 audio_io_handle_t input, 161 uint32_t sampleRate, 162 audio_format_t format, 163 audio_channel_mask_t channelMask, 164 size_t frameCount, 165 track_flags_t *flags, 166 pid_t tid, 167 int *sessionId, 168 status_t *status) 169 { 170 Parcel data, reply; 171 sp<IAudioRecord> record; 172 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 173 data.writeInt32((int32_t) input); 174 data.writeInt32(sampleRate); 175 data.writeInt32(format); 176 data.writeInt32(channelMask); 177 data.writeInt32(frameCount); 178 track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT; 179 data.writeInt32(lFlags); 180 data.writeInt32((int32_t) tid); 181 int lSessionId = AUDIO_SESSION_ALLOCATE; 182 if (sessionId != NULL) { 183 lSessionId = *sessionId; 184 } 185 data.writeInt32(lSessionId); 186 status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply); 187 if (lStatus != NO_ERROR) { 188 ALOGE("openRecord error: %s", strerror(-lStatus)); 189 } else { 190 lFlags = reply.readInt32(); 191 if (flags != NULL) { 192 *flags = lFlags; 193 } 194 lSessionId = reply.readInt32(); 195 if (sessionId != NULL) { 196 *sessionId = lSessionId; 197 } 198 lStatus = reply.readInt32(); 199 record = interface_cast<IAudioRecord>(reply.readStrongBinder()); 200 if (lStatus == NO_ERROR) { 201 if (record == 0) { 202 ALOGE("openRecord should have returned an IAudioRecord"); 203 lStatus = UNKNOWN_ERROR; 204 } 205 } else { 206 if (record != 0) { 207 ALOGE("openRecord returned an IAudioRecord but with status %d", lStatus); 208 record.clear(); 209 } 210 } 211 } 212 if (status != NULL) { 213 *status = lStatus; 214 } 215 return record; 216 } 217 218 virtual uint32_t sampleRate(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(SAMPLE_RATE, data, &reply); 224 return reply.readInt32(); 225 } 226 227 virtual audio_format_t format(audio_io_handle_t output) const 228 { 229 Parcel data, reply; 230 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 231 data.writeInt32((int32_t) output); 232 remote()->transact(FORMAT, data, &reply); 233 return (audio_format_t) reply.readInt32(); 234 } 235 236 virtual size_t frameCount(audio_io_handle_t output) const 237 { 238 Parcel data, reply; 239 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 240 data.writeInt32((int32_t) output); 241 remote()->transact(FRAME_COUNT, data, &reply); 242 return reply.readInt32(); 243 } 244 245 virtual uint32_t latency(audio_io_handle_t output) const 246 { 247 Parcel data, reply; 248 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 249 data.writeInt32((int32_t) output); 250 remote()->transact(LATENCY, data, &reply); 251 return reply.readInt32(); 252 } 253 254 virtual status_t setMasterVolume(float value) 255 { 256 Parcel data, reply; 257 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 258 data.writeFloat(value); 259 remote()->transact(SET_MASTER_VOLUME, data, &reply); 260 return reply.readInt32(); 261 } 262 263 virtual status_t setMasterMute(bool muted) 264 { 265 Parcel data, reply; 266 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 267 data.writeInt32(muted); 268 remote()->transact(SET_MASTER_MUTE, data, &reply); 269 return reply.readInt32(); 270 } 271 272 virtual float masterVolume() const 273 { 274 Parcel data, reply; 275 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 276 remote()->transact(MASTER_VOLUME, data, &reply); 277 return reply.readFloat(); 278 } 279 280 virtual bool masterMute() const 281 { 282 Parcel data, reply; 283 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 284 remote()->transact(MASTER_MUTE, data, &reply); 285 return reply.readInt32(); 286 } 287 288 virtual status_t setStreamVolume(audio_stream_type_t stream, float value, 289 audio_io_handle_t output) 290 { 291 Parcel data, reply; 292 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 293 data.writeInt32((int32_t) stream); 294 data.writeFloat(value); 295 data.writeInt32((int32_t) output); 296 remote()->transact(SET_STREAM_VOLUME, data, &reply); 297 return reply.readInt32(); 298 } 299 300 virtual status_t setStreamMute(audio_stream_type_t stream, bool muted) 301 { 302 Parcel data, reply; 303 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 304 data.writeInt32((int32_t) stream); 305 data.writeInt32(muted); 306 remote()->transact(SET_STREAM_MUTE, data, &reply); 307 return reply.readInt32(); 308 } 309 310 virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const 311 { 312 Parcel data, reply; 313 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 314 data.writeInt32((int32_t) stream); 315 data.writeInt32((int32_t) output); 316 remote()->transact(STREAM_VOLUME, data, &reply); 317 return reply.readFloat(); 318 } 319 320 virtual bool streamMute(audio_stream_type_t stream) const 321 { 322 Parcel data, reply; 323 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 324 data.writeInt32((int32_t) stream); 325 remote()->transact(STREAM_MUTE, data, &reply); 326 return reply.readInt32(); 327 } 328 329 virtual status_t setMode(audio_mode_t mode) 330 { 331 Parcel data, reply; 332 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 333 data.writeInt32(mode); 334 remote()->transact(SET_MODE, data, &reply); 335 return reply.readInt32(); 336 } 337 338 virtual status_t setMicMute(bool state) 339 { 340 Parcel data, reply; 341 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 342 data.writeInt32(state); 343 remote()->transact(SET_MIC_MUTE, data, &reply); 344 return reply.readInt32(); 345 } 346 347 virtual bool getMicMute() const 348 { 349 Parcel data, reply; 350 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 351 remote()->transact(GET_MIC_MUTE, data, &reply); 352 return reply.readInt32(); 353 } 354 355 virtual status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs) 356 { 357 Parcel data, reply; 358 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 359 data.writeInt32((int32_t) ioHandle); 360 data.writeString8(keyValuePairs); 361 remote()->transact(SET_PARAMETERS, data, &reply); 362 return reply.readInt32(); 363 } 364 365 virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const 366 { 367 Parcel data, reply; 368 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 369 data.writeInt32((int32_t) ioHandle); 370 data.writeString8(keys); 371 remote()->transact(GET_PARAMETERS, data, &reply); 372 return reply.readString8(); 373 } 374 375 virtual void registerClient(const sp<IAudioFlingerClient>& client) 376 { 377 Parcel data, reply; 378 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 379 data.writeStrongBinder(client->asBinder()); 380 remote()->transact(REGISTER_CLIENT, data, &reply); 381 } 382 383 virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 384 audio_channel_mask_t channelMask) const 385 { 386 Parcel data, reply; 387 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 388 data.writeInt32(sampleRate); 389 data.writeInt32(format); 390 data.writeInt32(channelMask); 391 remote()->transact(GET_INPUTBUFFERSIZE, data, &reply); 392 return reply.readInt32(); 393 } 394 395 virtual audio_io_handle_t openOutput(audio_module_handle_t module, 396 audio_devices_t *pDevices, 397 uint32_t *pSamplingRate, 398 audio_format_t *pFormat, 399 audio_channel_mask_t *pChannelMask, 400 uint32_t *pLatencyMs, 401 audio_output_flags_t flags, 402 const audio_offload_info_t *offloadInfo) 403 { 404 Parcel data, reply; 405 audio_devices_t devices = pDevices != NULL ? *pDevices : (audio_devices_t)0; 406 uint32_t samplingRate = pSamplingRate != NULL ? *pSamplingRate : 0; 407 audio_format_t format = pFormat != NULL ? *pFormat : AUDIO_FORMAT_DEFAULT; 408 audio_channel_mask_t channelMask = pChannelMask != NULL ? 409 *pChannelMask : (audio_channel_mask_t)0; 410 uint32_t latency = pLatencyMs != NULL ? *pLatencyMs : 0; 411 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 412 data.writeInt32(module); 413 data.writeInt32(devices); 414 data.writeInt32(samplingRate); 415 data.writeInt32(format); 416 data.writeInt32(channelMask); 417 data.writeInt32(latency); 418 data.writeInt32((int32_t) flags); 419 if (offloadInfo == NULL) { 420 data.writeInt32(0); 421 } else { 422 data.writeInt32(1); 423 data.write(offloadInfo, sizeof(audio_offload_info_t)); 424 } 425 remote()->transact(OPEN_OUTPUT, data, &reply); 426 audio_io_handle_t output = (audio_io_handle_t) reply.readInt32(); 427 ALOGV("openOutput() returned output, %d", output); 428 devices = (audio_devices_t)reply.readInt32(); 429 if (pDevices != NULL) { 430 *pDevices = devices; 431 } 432 samplingRate = reply.readInt32(); 433 if (pSamplingRate != NULL) { 434 *pSamplingRate = samplingRate; 435 } 436 format = (audio_format_t) reply.readInt32(); 437 if (pFormat != NULL) { 438 *pFormat = format; 439 } 440 channelMask = (audio_channel_mask_t)reply.readInt32(); 441 if (pChannelMask != NULL) { 442 *pChannelMask = channelMask; 443 } 444 latency = reply.readInt32(); 445 if (pLatencyMs != NULL) { 446 *pLatencyMs = latency; 447 } 448 return output; 449 } 450 451 virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, 452 audio_io_handle_t output2) 453 { 454 Parcel data, reply; 455 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 456 data.writeInt32((int32_t) output1); 457 data.writeInt32((int32_t) output2); 458 remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply); 459 return (audio_io_handle_t) reply.readInt32(); 460 } 461 462 virtual status_t closeOutput(audio_io_handle_t output) 463 { 464 Parcel data, reply; 465 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 466 data.writeInt32((int32_t) output); 467 remote()->transact(CLOSE_OUTPUT, data, &reply); 468 return reply.readInt32(); 469 } 470 471 virtual status_t suspendOutput(audio_io_handle_t output) 472 { 473 Parcel data, reply; 474 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 475 data.writeInt32((int32_t) output); 476 remote()->transact(SUSPEND_OUTPUT, data, &reply); 477 return reply.readInt32(); 478 } 479 480 virtual status_t restoreOutput(audio_io_handle_t output) 481 { 482 Parcel data, reply; 483 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 484 data.writeInt32((int32_t) output); 485 remote()->transact(RESTORE_OUTPUT, data, &reply); 486 return reply.readInt32(); 487 } 488 489 virtual audio_io_handle_t openInput(audio_module_handle_t module, 490 audio_devices_t *pDevices, 491 uint32_t *pSamplingRate, 492 audio_format_t *pFormat, 493 audio_channel_mask_t *pChannelMask) 494 { 495 Parcel data, reply; 496 audio_devices_t devices = pDevices != NULL ? *pDevices : (audio_devices_t)0; 497 uint32_t samplingRate = pSamplingRate != NULL ? *pSamplingRate : 0; 498 audio_format_t format = pFormat != NULL ? *pFormat : AUDIO_FORMAT_DEFAULT; 499 audio_channel_mask_t channelMask = pChannelMask != NULL ? 500 *pChannelMask : (audio_channel_mask_t)0; 501 502 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 503 data.writeInt32(module); 504 data.writeInt32(devices); 505 data.writeInt32(samplingRate); 506 data.writeInt32(format); 507 data.writeInt32(channelMask); 508 remote()->transact(OPEN_INPUT, data, &reply); 509 audio_io_handle_t input = (audio_io_handle_t) reply.readInt32(); 510 devices = (audio_devices_t)reply.readInt32(); 511 if (pDevices != NULL) { 512 *pDevices = devices; 513 } 514 samplingRate = reply.readInt32(); 515 if (pSamplingRate != NULL) { 516 *pSamplingRate = samplingRate; 517 } 518 format = (audio_format_t) reply.readInt32(); 519 if (pFormat != NULL) { 520 *pFormat = format; 521 } 522 channelMask = (audio_channel_mask_t)reply.readInt32(); 523 if (pChannelMask != NULL) { 524 *pChannelMask = channelMask; 525 } 526 return input; 527 } 528 529 virtual status_t closeInput(int input) 530 { 531 Parcel data, reply; 532 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 533 data.writeInt32(input); 534 remote()->transact(CLOSE_INPUT, data, &reply); 535 return reply.readInt32(); 536 } 537 538 virtual status_t setStreamOutput(audio_stream_type_t stream, audio_io_handle_t output) 539 { 540 Parcel data, reply; 541 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 542 data.writeInt32((int32_t) stream); 543 data.writeInt32((int32_t) output); 544 remote()->transact(SET_STREAM_OUTPUT, data, &reply); 545 return reply.readInt32(); 546 } 547 548 virtual status_t setVoiceVolume(float volume) 549 { 550 Parcel data, reply; 551 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 552 data.writeFloat(volume); 553 remote()->transact(SET_VOICE_VOLUME, data, &reply); 554 return reply.readInt32(); 555 } 556 557 virtual status_t getRenderPosition(size_t *halFrames, size_t *dspFrames, 558 audio_io_handle_t output) const 559 { 560 Parcel data, reply; 561 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 562 data.writeInt32((int32_t) output); 563 remote()->transact(GET_RENDER_POSITION, data, &reply); 564 status_t status = reply.readInt32(); 565 if (status == NO_ERROR) { 566 uint32_t tmp = reply.readInt32(); 567 if (halFrames != NULL) { 568 *halFrames = tmp; 569 } 570 tmp = reply.readInt32(); 571 if (dspFrames != NULL) { 572 *dspFrames = tmp; 573 } 574 } 575 return status; 576 } 577 578 virtual size_t getInputFramesLost(audio_io_handle_t ioHandle) const 579 { 580 Parcel data, reply; 581 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 582 data.writeInt32((int32_t) ioHandle); 583 remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply); 584 return reply.readInt32(); 585 } 586 587 virtual int newAudioSessionId() 588 { 589 Parcel data, reply; 590 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 591 status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply); 592 int id = 0; 593 if (status == NO_ERROR) { 594 id = reply.readInt32(); 595 } 596 return id; 597 } 598 599 virtual void acquireAudioSessionId(int audioSession) 600 { 601 Parcel data, reply; 602 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 603 data.writeInt32(audioSession); 604 remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply); 605 } 606 607 virtual void releaseAudioSessionId(int audioSession) 608 { 609 Parcel data, reply; 610 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 611 data.writeInt32(audioSession); 612 remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply); 613 } 614 615 virtual status_t queryNumberEffects(uint32_t *numEffects) const 616 { 617 Parcel data, reply; 618 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 619 status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply); 620 if (status != NO_ERROR) { 621 return status; 622 } 623 status = reply.readInt32(); 624 if (status != NO_ERROR) { 625 return status; 626 } 627 if (numEffects != NULL) { 628 *numEffects = (uint32_t)reply.readInt32(); 629 } 630 return NO_ERROR; 631 } 632 633 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const 634 { 635 if (pDescriptor == NULL) { 636 return BAD_VALUE; 637 } 638 Parcel data, reply; 639 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 640 data.writeInt32(index); 641 status_t status = remote()->transact(QUERY_EFFECT, data, &reply); 642 if (status != NO_ERROR) { 643 return status; 644 } 645 status = reply.readInt32(); 646 if (status != NO_ERROR) { 647 return status; 648 } 649 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 650 return NO_ERROR; 651 } 652 653 virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid, 654 effect_descriptor_t *pDescriptor) const 655 { 656 if (pUuid == NULL || pDescriptor == NULL) { 657 return BAD_VALUE; 658 } 659 Parcel data, reply; 660 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 661 data.write(pUuid, sizeof(effect_uuid_t)); 662 status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply); 663 if (status != NO_ERROR) { 664 return status; 665 } 666 status = reply.readInt32(); 667 if (status != NO_ERROR) { 668 return status; 669 } 670 reply.read(pDescriptor, sizeof(effect_descriptor_t)); 671 return NO_ERROR; 672 } 673 674 virtual sp<IEffect> createEffect( 675 effect_descriptor_t *pDesc, 676 const sp<IEffectClient>& client, 677 int32_t priority, 678 audio_io_handle_t output, 679 int sessionId, 680 status_t *status, 681 int *id, 682 int *enabled) 683 { 684 Parcel data, reply; 685 sp<IEffect> effect; 686 687 if (pDesc == NULL) { 688 return effect; 689 if (status != NULL) { 690 *status = BAD_VALUE; 691 } 692 } 693 694 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 695 data.write(pDesc, sizeof(effect_descriptor_t)); 696 data.writeStrongBinder(client->asBinder()); 697 data.writeInt32(priority); 698 data.writeInt32((int32_t) output); 699 data.writeInt32(sessionId); 700 701 status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply); 702 if (lStatus != NO_ERROR) { 703 ALOGE("createEffect error: %s", strerror(-lStatus)); 704 } else { 705 lStatus = reply.readInt32(); 706 int tmp = reply.readInt32(); 707 if (id != NULL) { 708 *id = tmp; 709 } 710 tmp = reply.readInt32(); 711 if (enabled != NULL) { 712 *enabled = tmp; 713 } 714 effect = interface_cast<IEffect>(reply.readStrongBinder()); 715 reply.read(pDesc, sizeof(effect_descriptor_t)); 716 } 717 if (status != NULL) { 718 *status = lStatus; 719 } 720 721 return effect; 722 } 723 724 virtual status_t moveEffects(int session, audio_io_handle_t srcOutput, 725 audio_io_handle_t dstOutput) 726 { 727 Parcel data, reply; 728 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 729 data.writeInt32(session); 730 data.writeInt32((int32_t) srcOutput); 731 data.writeInt32((int32_t) dstOutput); 732 remote()->transact(MOVE_EFFECTS, data, &reply); 733 return reply.readInt32(); 734 } 735 736 virtual audio_module_handle_t loadHwModule(const char *name) 737 { 738 Parcel data, reply; 739 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 740 data.writeCString(name); 741 remote()->transact(LOAD_HW_MODULE, data, &reply); 742 return (audio_module_handle_t) reply.readInt32(); 743 } 744 745 virtual uint32_t getPrimaryOutputSamplingRate() 746 { 747 Parcel data, reply; 748 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 749 remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply); 750 return reply.readInt32(); 751 } 752 753 virtual size_t getPrimaryOutputFrameCount() 754 { 755 Parcel data, reply; 756 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 757 remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply); 758 return reply.readInt32(); 759 } 760 761 virtual status_t setLowRamDevice(bool isLowRamDevice) 762 { 763 Parcel data, reply; 764 data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); 765 data.writeInt32((int) isLowRamDevice); 766 remote()->transact(SET_LOW_RAM_DEVICE, data, &reply); 767 return reply.readInt32(); 768 } 769 770}; 771 772IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger"); 773 774// ---------------------------------------------------------------------- 775 776status_t BnAudioFlinger::onTransact( 777 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 778{ 779 switch (code) { 780 case CREATE_TRACK: { 781 CHECK_INTERFACE(IAudioFlinger, data, reply); 782 int streamType = data.readInt32(); 783 uint32_t sampleRate = data.readInt32(); 784 audio_format_t format = (audio_format_t) data.readInt32(); 785 audio_channel_mask_t channelMask = data.readInt32(); 786 size_t frameCount = data.readInt32(); 787 track_flags_t flags = (track_flags_t) data.readInt32(); 788 bool haveSharedBuffer = data.readInt32() != 0; 789 sp<IMemory> buffer; 790 if (haveSharedBuffer) { 791 buffer = interface_cast<IMemory>(data.readStrongBinder()); 792 } 793 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 794 pid_t tid = (pid_t) data.readInt32(); 795 int sessionId = data.readInt32(); 796 int clientUid = data.readInt32(); 797 String8 name; 798 status_t status; 799 sp<IAudioTrack> track; 800 if ((haveSharedBuffer && (buffer == 0)) || 801 ((buffer != 0) && (buffer->pointer() == NULL))) { 802 ALOGW("CREATE_TRACK: cannot retrieve shared memory"); 803 status = DEAD_OBJECT; 804 } else { 805 track = createTrack( 806 (audio_stream_type_t) streamType, sampleRate, format, 807 channelMask, frameCount, &flags, buffer, output, tid, 808 &sessionId, name, clientUid, &status); 809 LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR)); 810 } 811 reply->writeInt32(flags); 812 reply->writeInt32(sessionId); 813 reply->writeString8(name); 814 reply->writeInt32(status); 815 reply->writeStrongBinder(track->asBinder()); 816 return NO_ERROR; 817 } break; 818 case OPEN_RECORD: { 819 CHECK_INTERFACE(IAudioFlinger, data, reply); 820 audio_io_handle_t input = (audio_io_handle_t) data.readInt32(); 821 uint32_t sampleRate = data.readInt32(); 822 audio_format_t format = (audio_format_t) data.readInt32(); 823 audio_channel_mask_t channelMask = data.readInt32(); 824 size_t frameCount = data.readInt32(); 825 track_flags_t flags = (track_flags_t) data.readInt32(); 826 pid_t tid = (pid_t) data.readInt32(); 827 int sessionId = data.readInt32(); 828 status_t status; 829 sp<IAudioRecord> record = openRecord(input, 830 sampleRate, format, channelMask, frameCount, &flags, tid, &sessionId, &status); 831 LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR)); 832 reply->writeInt32(flags); 833 reply->writeInt32(sessionId); 834 reply->writeInt32(status); 835 reply->writeStrongBinder(record->asBinder()); 836 return NO_ERROR; 837 } break; 838 case SAMPLE_RATE: { 839 CHECK_INTERFACE(IAudioFlinger, data, reply); 840 reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) ); 841 return NO_ERROR; 842 } break; 843 case FORMAT: { 844 CHECK_INTERFACE(IAudioFlinger, data, reply); 845 reply->writeInt32( format((audio_io_handle_t) data.readInt32()) ); 846 return NO_ERROR; 847 } break; 848 case FRAME_COUNT: { 849 CHECK_INTERFACE(IAudioFlinger, data, reply); 850 reply->writeInt32( frameCount((audio_io_handle_t) data.readInt32()) ); 851 return NO_ERROR; 852 } break; 853 case LATENCY: { 854 CHECK_INTERFACE(IAudioFlinger, data, reply); 855 reply->writeInt32( latency((audio_io_handle_t) data.readInt32()) ); 856 return NO_ERROR; 857 } break; 858 case SET_MASTER_VOLUME: { 859 CHECK_INTERFACE(IAudioFlinger, data, reply); 860 reply->writeInt32( setMasterVolume(data.readFloat()) ); 861 return NO_ERROR; 862 } break; 863 case SET_MASTER_MUTE: { 864 CHECK_INTERFACE(IAudioFlinger, data, reply); 865 reply->writeInt32( setMasterMute(data.readInt32()) ); 866 return NO_ERROR; 867 } break; 868 case MASTER_VOLUME: { 869 CHECK_INTERFACE(IAudioFlinger, data, reply); 870 reply->writeFloat( masterVolume() ); 871 return NO_ERROR; 872 } break; 873 case MASTER_MUTE: { 874 CHECK_INTERFACE(IAudioFlinger, data, reply); 875 reply->writeInt32( masterMute() ); 876 return NO_ERROR; 877 } break; 878 case SET_STREAM_VOLUME: { 879 CHECK_INTERFACE(IAudioFlinger, data, reply); 880 int stream = data.readInt32(); 881 float volume = data.readFloat(); 882 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 883 reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) ); 884 return NO_ERROR; 885 } break; 886 case SET_STREAM_MUTE: { 887 CHECK_INTERFACE(IAudioFlinger, data, reply); 888 int stream = data.readInt32(); 889 reply->writeInt32( setStreamMute((audio_stream_type_t) stream, data.readInt32()) ); 890 return NO_ERROR; 891 } break; 892 case STREAM_VOLUME: { 893 CHECK_INTERFACE(IAudioFlinger, data, reply); 894 int stream = data.readInt32(); 895 int output = data.readInt32(); 896 reply->writeFloat( streamVolume((audio_stream_type_t) stream, output) ); 897 return NO_ERROR; 898 } break; 899 case STREAM_MUTE: { 900 CHECK_INTERFACE(IAudioFlinger, data, reply); 901 int stream = data.readInt32(); 902 reply->writeInt32( streamMute((audio_stream_type_t) stream) ); 903 return NO_ERROR; 904 } break; 905 case SET_MODE: { 906 CHECK_INTERFACE(IAudioFlinger, data, reply); 907 audio_mode_t mode = (audio_mode_t) data.readInt32(); 908 reply->writeInt32( setMode(mode) ); 909 return NO_ERROR; 910 } break; 911 case SET_MIC_MUTE: { 912 CHECK_INTERFACE(IAudioFlinger, data, reply); 913 int state = data.readInt32(); 914 reply->writeInt32( setMicMute(state) ); 915 return NO_ERROR; 916 } break; 917 case GET_MIC_MUTE: { 918 CHECK_INTERFACE(IAudioFlinger, data, reply); 919 reply->writeInt32( getMicMute() ); 920 return NO_ERROR; 921 } break; 922 case SET_PARAMETERS: { 923 CHECK_INTERFACE(IAudioFlinger, data, reply); 924 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 925 String8 keyValuePairs(data.readString8()); 926 reply->writeInt32(setParameters(ioHandle, keyValuePairs)); 927 return NO_ERROR; 928 } break; 929 case GET_PARAMETERS: { 930 CHECK_INTERFACE(IAudioFlinger, data, reply); 931 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 932 String8 keys(data.readString8()); 933 reply->writeString8(getParameters(ioHandle, keys)); 934 return NO_ERROR; 935 } break; 936 937 case REGISTER_CLIENT: { 938 CHECK_INTERFACE(IAudioFlinger, data, reply); 939 sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>( 940 data.readStrongBinder()); 941 registerClient(client); 942 return NO_ERROR; 943 } break; 944 case GET_INPUTBUFFERSIZE: { 945 CHECK_INTERFACE(IAudioFlinger, data, reply); 946 uint32_t sampleRate = data.readInt32(); 947 audio_format_t format = (audio_format_t) data.readInt32(); 948 audio_channel_mask_t channelMask = data.readInt32(); 949 reply->writeInt32( getInputBufferSize(sampleRate, format, channelMask) ); 950 return NO_ERROR; 951 } break; 952 case OPEN_OUTPUT: { 953 CHECK_INTERFACE(IAudioFlinger, data, reply); 954 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 955 audio_devices_t devices = (audio_devices_t)data.readInt32(); 956 uint32_t samplingRate = data.readInt32(); 957 audio_format_t format = (audio_format_t) data.readInt32(); 958 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 959 uint32_t latency = data.readInt32(); 960 audio_output_flags_t flags = (audio_output_flags_t) data.readInt32(); 961 bool hasOffloadInfo = data.readInt32() != 0; 962 audio_offload_info_t offloadInfo; 963 if (hasOffloadInfo) { 964 data.read(&offloadInfo, sizeof(audio_offload_info_t)); 965 } 966 audio_io_handle_t output = openOutput(module, 967 &devices, 968 &samplingRate, 969 &format, 970 &channelMask, 971 &latency, 972 flags, 973 hasOffloadInfo ? &offloadInfo : NULL); 974 ALOGV("OPEN_OUTPUT output, %p", output); 975 reply->writeInt32((int32_t) output); 976 reply->writeInt32(devices); 977 reply->writeInt32(samplingRate); 978 reply->writeInt32(format); 979 reply->writeInt32(channelMask); 980 reply->writeInt32(latency); 981 return NO_ERROR; 982 } break; 983 case OPEN_DUPLICATE_OUTPUT: { 984 CHECK_INTERFACE(IAudioFlinger, data, reply); 985 audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32(); 986 audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32(); 987 reply->writeInt32((int32_t) openDuplicateOutput(output1, output2)); 988 return NO_ERROR; 989 } break; 990 case CLOSE_OUTPUT: { 991 CHECK_INTERFACE(IAudioFlinger, data, reply); 992 reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32())); 993 return NO_ERROR; 994 } break; 995 case SUSPEND_OUTPUT: { 996 CHECK_INTERFACE(IAudioFlinger, data, reply); 997 reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32())); 998 return NO_ERROR; 999 } break; 1000 case RESTORE_OUTPUT: { 1001 CHECK_INTERFACE(IAudioFlinger, data, reply); 1002 reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32())); 1003 return NO_ERROR; 1004 } break; 1005 case OPEN_INPUT: { 1006 CHECK_INTERFACE(IAudioFlinger, data, reply); 1007 audio_module_handle_t module = (audio_module_handle_t)data.readInt32(); 1008 audio_devices_t devices = (audio_devices_t)data.readInt32(); 1009 uint32_t samplingRate = data.readInt32(); 1010 audio_format_t format = (audio_format_t) data.readInt32(); 1011 audio_channel_mask_t channelMask = (audio_channel_mask_t)data.readInt32(); 1012 1013 audio_io_handle_t input = openInput(module, 1014 &devices, 1015 &samplingRate, 1016 &format, 1017 &channelMask); 1018 reply->writeInt32((int32_t) input); 1019 reply->writeInt32(devices); 1020 reply->writeInt32(samplingRate); 1021 reply->writeInt32(format); 1022 reply->writeInt32(channelMask); 1023 return NO_ERROR; 1024 } break; 1025 case CLOSE_INPUT: { 1026 CHECK_INTERFACE(IAudioFlinger, data, reply); 1027 reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32())); 1028 return NO_ERROR; 1029 } break; 1030 case SET_STREAM_OUTPUT: { 1031 CHECK_INTERFACE(IAudioFlinger, data, reply); 1032 uint32_t stream = data.readInt32(); 1033 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1034 reply->writeInt32(setStreamOutput((audio_stream_type_t) stream, output)); 1035 return NO_ERROR; 1036 } break; 1037 case SET_VOICE_VOLUME: { 1038 CHECK_INTERFACE(IAudioFlinger, data, reply); 1039 float volume = data.readFloat(); 1040 reply->writeInt32( setVoiceVolume(volume) ); 1041 return NO_ERROR; 1042 } break; 1043 case GET_RENDER_POSITION: { 1044 CHECK_INTERFACE(IAudioFlinger, data, reply); 1045 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1046 size_t halFrames; 1047 size_t dspFrames; 1048 status_t status = getRenderPosition(&halFrames, &dspFrames, output); 1049 reply->writeInt32(status); 1050 if (status == NO_ERROR) { 1051 reply->writeInt32(halFrames); 1052 reply->writeInt32(dspFrames); 1053 } 1054 return NO_ERROR; 1055 } 1056 case GET_INPUT_FRAMES_LOST: { 1057 CHECK_INTERFACE(IAudioFlinger, data, reply); 1058 audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32(); 1059 reply->writeInt32(getInputFramesLost(ioHandle)); 1060 return NO_ERROR; 1061 } break; 1062 case NEW_AUDIO_SESSION_ID: { 1063 CHECK_INTERFACE(IAudioFlinger, data, reply); 1064 reply->writeInt32(newAudioSessionId()); 1065 return NO_ERROR; 1066 } break; 1067 case ACQUIRE_AUDIO_SESSION_ID: { 1068 CHECK_INTERFACE(IAudioFlinger, data, reply); 1069 int audioSession = data.readInt32(); 1070 acquireAudioSessionId(audioSession); 1071 return NO_ERROR; 1072 } break; 1073 case RELEASE_AUDIO_SESSION_ID: { 1074 CHECK_INTERFACE(IAudioFlinger, data, reply); 1075 int audioSession = data.readInt32(); 1076 releaseAudioSessionId(audioSession); 1077 return NO_ERROR; 1078 } break; 1079 case QUERY_NUM_EFFECTS: { 1080 CHECK_INTERFACE(IAudioFlinger, data, reply); 1081 uint32_t numEffects; 1082 status_t status = queryNumberEffects(&numEffects); 1083 reply->writeInt32(status); 1084 if (status == NO_ERROR) { 1085 reply->writeInt32((int32_t)numEffects); 1086 } 1087 return NO_ERROR; 1088 } 1089 case QUERY_EFFECT: { 1090 CHECK_INTERFACE(IAudioFlinger, data, reply); 1091 effect_descriptor_t desc; 1092 status_t status = queryEffect(data.readInt32(), &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 GET_EFFECT_DESCRIPTOR: { 1100 CHECK_INTERFACE(IAudioFlinger, data, reply); 1101 effect_uuid_t uuid; 1102 data.read(&uuid, sizeof(effect_uuid_t)); 1103 effect_descriptor_t desc; 1104 status_t status = getEffectDescriptor(&uuid, &desc); 1105 reply->writeInt32(status); 1106 if (status == NO_ERROR) { 1107 reply->write(&desc, sizeof(effect_descriptor_t)); 1108 } 1109 return NO_ERROR; 1110 } 1111 case CREATE_EFFECT: { 1112 CHECK_INTERFACE(IAudioFlinger, data, reply); 1113 effect_descriptor_t desc; 1114 data.read(&desc, sizeof(effect_descriptor_t)); 1115 sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder()); 1116 int32_t priority = data.readInt32(); 1117 audio_io_handle_t output = (audio_io_handle_t) data.readInt32(); 1118 int sessionId = data.readInt32(); 1119 status_t status; 1120 int id; 1121 int enabled; 1122 1123 sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId, 1124 &status, &id, &enabled); 1125 reply->writeInt32(status); 1126 reply->writeInt32(id); 1127 reply->writeInt32(enabled); 1128 reply->writeStrongBinder(effect->asBinder()); 1129 reply->write(&desc, sizeof(effect_descriptor_t)); 1130 return NO_ERROR; 1131 } break; 1132 case MOVE_EFFECTS: { 1133 CHECK_INTERFACE(IAudioFlinger, data, reply); 1134 int session = data.readInt32(); 1135 audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32(); 1136 audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32(); 1137 reply->writeInt32(moveEffects(session, srcOutput, dstOutput)); 1138 return NO_ERROR; 1139 } break; 1140 case LOAD_HW_MODULE: { 1141 CHECK_INTERFACE(IAudioFlinger, data, reply); 1142 reply->writeInt32(loadHwModule(data.readCString())); 1143 return NO_ERROR; 1144 } break; 1145 case GET_PRIMARY_OUTPUT_SAMPLING_RATE: { 1146 CHECK_INTERFACE(IAudioFlinger, data, reply); 1147 reply->writeInt32(getPrimaryOutputSamplingRate()); 1148 return NO_ERROR; 1149 } break; 1150 case GET_PRIMARY_OUTPUT_FRAME_COUNT: { 1151 CHECK_INTERFACE(IAudioFlinger, data, reply); 1152 reply->writeInt32(getPrimaryOutputFrameCount()); 1153 return NO_ERROR; 1154 } break; 1155 case SET_LOW_RAM_DEVICE: { 1156 CHECK_INTERFACE(IAudioFlinger, data, reply); 1157 bool isLowRamDevice = data.readInt32() != 0; 1158 reply->writeInt32(setLowRamDevice(isLowRamDevice)); 1159 return NO_ERROR; 1160 } break; 1161 default: 1162 return BBinder::onTransact(code, data, reply, flags); 1163 } 1164} 1165 1166// ---------------------------------------------------------------------------- 1167 1168}; // namespace android 1169