The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * QEMU OS X CoreAudio audio driver |
| 3 | * |
| 4 | * Copyright (c) 2008 The Android Open Source Project |
| 5 | * Copyright (c) 2005 Mike Kronenberg |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | * THE SOFTWARE. |
| 24 | */ |
| 25 | |
| 26 | #include <CoreAudio/CoreAudio.h> |
| 27 | #include <string.h> /* strerror */ |
| 28 | #include <pthread.h> /* pthread_X */ |
| 29 | |
| 30 | #include "audio.h" |
| 31 | |
| 32 | #define AUDIO_CAP "coreaudio" |
| 33 | #include "audio_int.h" |
| 34 | |
| 35 | #define ENABLE_IN 1 |
| 36 | |
| 37 | #if 0 |
| 38 | # define D(...) fprintf(stderr, __VA_ARGS__) |
| 39 | #else |
| 40 | # define D(...) ((void)0) |
| 41 | #endif |
| 42 | |
| 43 | struct { |
| 44 | int out_buffer_frames; |
| 45 | int out_nbuffers; |
| 46 | int in_buffer_frames; |
| 47 | int in_nbuffers; |
| 48 | int isAtexit; |
| 49 | } conf = { |
| 50 | .out_buffer_frames = 512, |
| 51 | .out_nbuffers = 4, |
| 52 | .in_buffer_frames = 512, |
| 53 | .in_nbuffers = 4, |
| 54 | .isAtexit = 0 |
| 55 | }; |
| 56 | |
| 57 | /***************************************************************************************/ |
| 58 | /***************************************************************************************/ |
| 59 | /*** ***/ |
| 60 | /*** U T I L I T Y R O U T I N E S ***/ |
| 61 | /*** ***/ |
| 62 | /***************************************************************************************/ |
| 63 | /***************************************************************************************/ |
| 64 | |
| 65 | static void coreaudio_logstatus (OSStatus status) |
| 66 | { |
| 67 | char *str = "BUG"; |
| 68 | |
| 69 | switch(status) { |
| 70 | case kAudioHardwareNoError: |
| 71 | str = "kAudioHardwareNoError"; |
| 72 | break; |
| 73 | |
| 74 | case kAudioHardwareNotRunningError: |
| 75 | str = "kAudioHardwareNotRunningError"; |
| 76 | break; |
| 77 | |
| 78 | case kAudioHardwareUnspecifiedError: |
| 79 | str = "kAudioHardwareUnspecifiedError"; |
| 80 | break; |
| 81 | |
| 82 | case kAudioHardwareUnknownPropertyError: |
| 83 | str = "kAudioHardwareUnknownPropertyError"; |
| 84 | break; |
| 85 | |
| 86 | case kAudioHardwareBadPropertySizeError: |
| 87 | str = "kAudioHardwareBadPropertySizeError"; |
| 88 | break; |
| 89 | |
| 90 | case kAudioHardwareIllegalOperationError: |
| 91 | str = "kAudioHardwareIllegalOperationError"; |
| 92 | break; |
| 93 | |
| 94 | case kAudioHardwareBadDeviceError: |
| 95 | str = "kAudioHardwareBadDeviceError"; |
| 96 | break; |
| 97 | |
| 98 | case kAudioHardwareBadStreamError: |
| 99 | str = "kAudioHardwareBadStreamError"; |
| 100 | break; |
| 101 | |
| 102 | case kAudioHardwareUnsupportedOperationError: |
| 103 | str = "kAudioHardwareUnsupportedOperationError"; |
| 104 | break; |
| 105 | |
| 106 | case kAudioDeviceUnsupportedFormatError: |
| 107 | str = "kAudioDeviceUnsupportedFormatError"; |
| 108 | break; |
| 109 | |
| 110 | case kAudioDevicePermissionsError: |
| 111 | str = "kAudioDevicePermissionsError"; |
| 112 | break; |
| 113 | |
| 114 | default: |
| 115 | AUD_log (AUDIO_CAP, "Reason: status code %ld\n", status); |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | AUD_log (AUDIO_CAP, "Reason: %s\n", str); |
| 120 | } |
| 121 | |
| 122 | static void GCC_FMT_ATTR (2, 3) coreaudio_logerr ( |
| 123 | OSStatus status, |
| 124 | const char *fmt, |
| 125 | ... |
| 126 | ) |
| 127 | { |
| 128 | va_list ap; |
| 129 | |
| 130 | va_start (ap, fmt); |
| 131 | AUD_log (AUDIO_CAP, fmt, ap); |
| 132 | va_end (ap); |
| 133 | |
| 134 | coreaudio_logstatus (status); |
| 135 | } |
| 136 | |
| 137 | static void GCC_FMT_ATTR (3, 4) coreaudio_logerr2 ( |
| 138 | OSStatus status, |
| 139 | const char *typ, |
| 140 | const char *fmt, |
| 141 | ... |
| 142 | ) |
| 143 | { |
| 144 | va_list ap; |
| 145 | |
| 146 | AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ); |
| 147 | |
| 148 | va_start (ap, fmt); |
| 149 | AUD_vlog (AUDIO_CAP, fmt, ap); |
| 150 | va_end (ap); |
| 151 | |
| 152 | coreaudio_logstatus (status); |
| 153 | } |
| 154 | |
| 155 | static void coreaudio_atexit (void) |
| 156 | { |
| 157 | conf.isAtexit = 1; |
| 158 | } |
| 159 | |
| 160 | /***************************************************************************************/ |
| 161 | /***************************************************************************************/ |
| 162 | /*** ***/ |
| 163 | /*** S H A R E D I N / O U T V O I C E ***/ |
| 164 | /*** ***/ |
| 165 | /***************************************************************************************/ |
| 166 | /***************************************************************************************/ |
| 167 | |
| 168 | typedef struct coreAudioVoice { |
| 169 | pthread_mutex_t mutex; |
| 170 | AudioDeviceID deviceID; |
| 171 | Boolean isInput; |
| 172 | UInt32 bufferFrameSize; |
| 173 | AudioStreamBasicDescription streamBasicDescription; |
| 174 | AudioDeviceIOProc ioproc; |
| 175 | int live; |
| 176 | int decr; |
| 177 | int pos; |
| 178 | } coreaudioVoice; |
| 179 | |
| 180 | |
| 181 | static inline UInt32 |
| 182 | coreaudio_voice_isPlaying (coreaudioVoice* core) |
| 183 | { |
| 184 | OSStatus status; |
| 185 | UInt32 result = 0; |
| 186 | UInt32 propertySize = sizeof(core->deviceID); |
| 187 | status = AudioDeviceGetProperty( |
| 188 | core->deviceID, 0, core->isInput, |
| 189 | kAudioDevicePropertyDeviceIsRunning, &propertySize, &result); |
| 190 | if (status != kAudioHardwareNoError) { |
| 191 | coreaudio_logerr(status, |
| 192 | "Could not determine whether Device is playing\n"); |
| 193 | } |
| 194 | return result; |
| 195 | } |
| 196 | |
| 197 | static int |
| 198 | coreaudio_voice_lock (coreaudioVoice* core, const char *fn_name) |
| 199 | { |
| 200 | int err; |
| 201 | |
| 202 | err = pthread_mutex_lock (&core->mutex); |
| 203 | if (err) { |
| 204 | dolog ("Could not lock voice for %s\nReason: %s\n", |
| 205 | fn_name, strerror (err)); |
| 206 | return -1; |
| 207 | } |
| 208 | return 0; |
| 209 | } |
| 210 | |
| 211 | static int |
| 212 | coreaudio_voice_unlock (coreaudioVoice* core, const char *fn_name) |
| 213 | { |
| 214 | int err; |
| 215 | |
| 216 | err = pthread_mutex_unlock (&core->mutex); |
| 217 | if (err) { |
| 218 | dolog ("Could not unlock voice for %s\nReason: %s\n", |
| 219 | fn_name, strerror (err)); |
| 220 | return -1; |
| 221 | } |
| 222 | return 0; |
| 223 | } |
| 224 | |
| 225 | static int |
| 226 | coreaudio_voice_ctl (coreaudioVoice* core, int cmd) |
| 227 | { |
| 228 | OSStatus status; |
| 229 | |
| 230 | switch (cmd) { |
| 231 | case VOICE_ENABLE: |
| 232 | /* start playback */ |
| 233 | D("%s: %s started\n", __FUNCTION__, core->isInput ? "input" : "output"); |
| 234 | if (!coreaudio_voice_isPlaying(core)) { |
| 235 | status = AudioDeviceStart(core->deviceID, core->ioproc); |
| 236 | if (status != kAudioHardwareNoError) { |
| 237 | coreaudio_logerr (status, "Could not resume playback\n"); |
| 238 | } |
| 239 | } |
| 240 | break; |
| 241 | |
| 242 | case VOICE_DISABLE: |
| 243 | /* stop playback */ |
| 244 | D("%s: %s stopped\n", __FUNCTION__, core->isInput ? "input" : "output"); |
| 245 | if (!conf.isAtexit) { |
| 246 | if (coreaudio_voice_isPlaying(core)) { |
| 247 | status = AudioDeviceStop(core->deviceID, core->ioproc); |
| 248 | if (status != kAudioHardwareNoError) { |
| 249 | coreaudio_logerr (status, "Could not pause playback\n"); |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | break; |
| 254 | } |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | static void |
| 259 | coreaudio_voice_fini (coreaudioVoice* core) |
| 260 | { |
| 261 | OSStatus status; |
| 262 | int err; |
| 263 | |
| 264 | if (!conf.isAtexit) { |
| 265 | /* stop playback */ |
| 266 | coreaudio_voice_ctl(core, VOICE_DISABLE); |
| 267 | |
| 268 | /* remove callback */ |
| 269 | status = AudioDeviceRemoveIOProc(core->deviceID, core->ioproc); |
| 270 | if (status != kAudioHardwareNoError) { |
| 271 | coreaudio_logerr (status, "Could not remove IOProc\n"); |
| 272 | } |
| 273 | } |
| 274 | core->deviceID = kAudioDeviceUnknown; |
| 275 | |
| 276 | /* destroy mutex */ |
| 277 | err = pthread_mutex_destroy(&core->mutex); |
| 278 | if (err) { |
| 279 | dolog("Could not destroy mutex\nReason: %s\n", strerror (err)); |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | |
| 284 | static int |
| 285 | coreaudio_voice_init (coreaudioVoice* core, |
| 286 | audsettings_t* as, |
| 287 | int frameSize, |
| 288 | AudioDeviceIOProc ioproc, |
| 289 | void* hw, |
| 290 | int input) |
| 291 | { |
| 292 | OSStatus status; |
| 293 | UInt32 propertySize; |
| 294 | int err; |
| 295 | int bits = 8; |
| 296 | AudioValueRange frameRange; |
| 297 | const char* typ = input ? "input" : "playback"; |
| 298 | |
| 299 | core->isInput = input ? true : false; |
| 300 | |
| 301 | /* create mutex */ |
| 302 | err = pthread_mutex_init(&core->mutex, NULL); |
| 303 | if (err) { |
| 304 | dolog("Could not create mutex\nReason: %s\n", strerror (err)); |
| 305 | return -1; |
| 306 | } |
| 307 | |
| 308 | if (as->fmt == AUD_FMT_S16 || as->fmt == AUD_FMT_U16) { |
| 309 | bits = 16; |
| 310 | } |
| 311 | |
| 312 | // TODO: audio_pcm_init_info (&hw->info, as); |
| 313 | /* open default output device */ |
| 314 | /* note: we use DefaultSystemOutputDevice because DefaultOutputDevice seems to |
| 315 | * always link to the internal speakers, and not the ones selected through system properties |
| 316 | * go figure... |
| 317 | */ |
| 318 | propertySize = sizeof(core->deviceID); |
| 319 | status = AudioHardwareGetProperty( |
| 320 | input ? kAudioHardwarePropertyDefaultInputDevice : |
| 321 | kAudioHardwarePropertyDefaultSystemOutputDevice, |
| 322 | &propertySize, |
| 323 | &core->deviceID); |
| 324 | if (status != kAudioHardwareNoError) { |
| 325 | coreaudio_logerr2 (status, typ, |
| 326 | "Could not get default %s device\n", typ); |
| 327 | return -1; |
| 328 | } |
| 329 | if (core->deviceID == kAudioDeviceUnknown) { |
| 330 | dolog ("Could not initialize %s - Unknown Audiodevice\n", typ); |
| 331 | return -1; |
| 332 | } |
| 333 | |
| 334 | /* get minimum and maximum buffer frame sizes */ |
| 335 | propertySize = sizeof(frameRange); |
| 336 | status = AudioDeviceGetProperty( |
| 337 | core->deviceID, |
| 338 | 0, |
| 339 | core->isInput, |
| 340 | kAudioDevicePropertyBufferFrameSizeRange, |
| 341 | &propertySize, |
| 342 | &frameRange); |
| 343 | if (status != kAudioHardwareNoError) { |
| 344 | coreaudio_logerr2 (status, typ, |
| 345 | "Could not get device buffer frame range\n"); |
| 346 | return -1; |
| 347 | } |
| 348 | |
| 349 | if (frameRange.mMinimum > frameSize) { |
| 350 | core->bufferFrameSize = (UInt32) frameRange.mMinimum; |
| 351 | dolog ("warning: Upsizing Output Buffer Frames to %f\n", frameRange.mMinimum); |
| 352 | } |
| 353 | else if (frameRange.mMaximum < frameSize) { |
| 354 | core->bufferFrameSize = (UInt32) frameRange.mMaximum; |
| 355 | dolog ("warning: Downsizing Output Buffer Frames to %f\n", frameRange.mMaximum); |
| 356 | } |
| 357 | else { |
| 358 | core->bufferFrameSize = frameSize; |
| 359 | } |
| 360 | |
| 361 | /* set Buffer Frame Size */ |
| 362 | propertySize = sizeof(core->bufferFrameSize); |
| 363 | status = AudioDeviceSetProperty( |
| 364 | core->deviceID, |
| 365 | NULL, |
| 366 | 0, |
| 367 | core->isInput, |
| 368 | kAudioDevicePropertyBufferFrameSize, |
| 369 | propertySize, |
| 370 | &core->bufferFrameSize); |
| 371 | if (status != kAudioHardwareNoError) { |
| 372 | coreaudio_logerr2 (status, typ, |
| 373 | "Could not set device buffer frame size %ld\n", |
| 374 | core->bufferFrameSize); |
| 375 | return -1; |
| 376 | } |
| 377 | |
| 378 | /* get Buffer Frame Size */ |
| 379 | propertySize = sizeof(core->bufferFrameSize); |
| 380 | status = AudioDeviceGetProperty( |
| 381 | core->deviceID, |
| 382 | 0, |
| 383 | core->isInput, |
| 384 | kAudioDevicePropertyBufferFrameSize, |
| 385 | &propertySize, |
| 386 | &core->bufferFrameSize); |
| 387 | if (status != kAudioHardwareNoError) { |
| 388 | coreaudio_logerr2 (status, typ, |
| 389 | "Could not get device buffer frame size\n"); |
| 390 | return -1; |
| 391 | } |
| 392 | // TODO: hw->samples = *pNBuffers * core->bufferFrameSize; |
| 393 | |
| 394 | /* get StreamFormat */ |
| 395 | propertySize = sizeof(core->streamBasicDescription); |
| 396 | status = AudioDeviceGetProperty( |
| 397 | core->deviceID, |
| 398 | 0, |
| 399 | core->isInput, |
| 400 | kAudioDevicePropertyStreamFormat, |
| 401 | &propertySize, |
| 402 | &core->streamBasicDescription); |
| 403 | if (status != kAudioHardwareNoError) { |
| 404 | coreaudio_logerr2 (status, typ, |
| 405 | "Could not get Device Stream properties\n"); |
| 406 | core->deviceID = kAudioDeviceUnknown; |
| 407 | return -1; |
| 408 | } |
| 409 | |
| 410 | /* set Samplerate */ |
| 411 | core->streamBasicDescription.mSampleRate = (Float64) as->freq; |
| 412 | propertySize = sizeof(core->streamBasicDescription); |
| 413 | status = AudioDeviceSetProperty( |
| 414 | core->deviceID, |
| 415 | 0, |
| 416 | 0, |
| 417 | core->isInput, |
| 418 | kAudioDevicePropertyStreamFormat, |
| 419 | propertySize, |
| 420 | &core->streamBasicDescription); |
| 421 | if (status != kAudioHardwareNoError) { |
| 422 | coreaudio_logerr2 (status, typ, "Could not set samplerate %d\n", |
| 423 | as->freq); |
| 424 | core->deviceID = kAudioDeviceUnknown; |
| 425 | return -1; |
| 426 | } |
| 427 | |
| 428 | /* set Callback */ |
| 429 | core->ioproc = ioproc; |
| 430 | status = AudioDeviceAddIOProc(core->deviceID, ioproc, hw); |
| 431 | if (status != kAudioHardwareNoError) { |
| 432 | coreaudio_logerr2 (status, typ, "Could not set IOProc\n"); |
| 433 | core->deviceID = kAudioDeviceUnknown; |
| 434 | return -1; |
| 435 | } |
| 436 | |
| 437 | /* start Playback */ |
| 438 | if (!input && !coreaudio_voice_isPlaying(core)) { |
| 439 | status = AudioDeviceStart(core->deviceID, core->ioproc); |
| 440 | if (status != kAudioHardwareNoError) { |
| 441 | coreaudio_logerr2 (status, typ, "Could not start playback\n"); |
| 442 | AudioDeviceRemoveIOProc(core->deviceID, core->ioproc); |
| 443 | core->deviceID = kAudioDeviceUnknown; |
| 444 | return -1; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | return 0; |
| 449 | } |
| 450 | |
| 451 | |
| 452 | /***************************************************************************************/ |
| 453 | /***************************************************************************************/ |
| 454 | /*** ***/ |
| 455 | /*** O U T P U T V O I C E ***/ |
| 456 | /*** ***/ |
| 457 | /***************************************************************************************/ |
| 458 | /***************************************************************************************/ |
| 459 | |
| 460 | typedef struct coreaudioVoiceOut { |
| 461 | HWVoiceOut hw; |
| 462 | coreaudioVoice core[1]; |
| 463 | } coreaudioVoiceOut; |
| 464 | |
| 465 | #define CORE_OUT(hw) ((coreaudioVoiceOut*)(hw))->core |
| 466 | |
| 467 | |
| 468 | static int |
| 469 | coreaudio_run_out (HWVoiceOut *hw) |
| 470 | { |
| 471 | int live, decr; |
| 472 | coreaudioVoice *core = CORE_OUT(hw); |
| 473 | |
| 474 | if (coreaudio_voice_lock (core, "coreaudio_run_out")) { |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | live = audio_pcm_hw_get_live_out (hw); |
| 479 | |
| 480 | if (core->decr > live) { |
| 481 | ldebug ("core->decr %d live %d core->live %d\n", |
| 482 | core->decr, |
| 483 | live, |
| 484 | core->live); |
| 485 | } |
| 486 | |
| 487 | decr = audio_MIN (core->decr, live); |
| 488 | core->decr -= decr; |
| 489 | core->live = live - decr; |
| 490 | hw->rpos = core->pos; |
| 491 | |
| 492 | coreaudio_voice_unlock (core, "coreaudio_run_out"); |
| 493 | return decr; |
| 494 | } |
| 495 | |
| 496 | |
| 497 | /* callback to feed audiooutput buffer */ |
| 498 | static OSStatus |
| 499 | audioOutDeviceIOProc( |
| 500 | AudioDeviceID inDevice, |
| 501 | const AudioTimeStamp* inNow, |
| 502 | const AudioBufferList* inInputData, |
| 503 | const AudioTimeStamp* inInputTime, |
| 504 | AudioBufferList* outOutputData, |
| 505 | const AudioTimeStamp* inOutputTime, |
| 506 | void* hwptr) |
| 507 | { |
| 508 | UInt32 frame, frameCount; |
| 509 | float *out = outOutputData->mBuffers[0].mData; |
| 510 | HWVoiceOut *hw = hwptr; |
| 511 | coreaudioVoice *core = CORE_OUT(hw); |
| 512 | int rpos, live; |
| 513 | st_sample_t *src; |
| 514 | #ifndef FLOAT_MIXENG |
| 515 | #ifdef RECIPROCAL |
| 516 | const float scale = 1.f / UINT_MAX; |
| 517 | #else |
| 518 | const float scale = UINT_MAX; |
| 519 | #endif |
| 520 | #endif |
| 521 | |
| 522 | if (coreaudio_voice_lock (core, "audioDeviceIOProc")) { |
| 523 | inInputTime = 0; |
| 524 | return 0; |
| 525 | } |
| 526 | |
| 527 | frameCount = core->bufferFrameSize; |
| 528 | live = core->live; |
| 529 | |
| 530 | /* if there are not enough samples, set signal and return */ |
| 531 | if (live < frameCount) { |
| 532 | inInputTime = 0; |
| 533 | coreaudio_voice_unlock (core, "audioDeviceIOProc(empty)"); |
| 534 | return 0; |
| 535 | } |
| 536 | |
| 537 | rpos = core->pos; |
| 538 | src = hw->mix_buf + rpos; |
| 539 | |
| 540 | /* fill buffer */ |
| 541 | for (frame = 0; frame < frameCount; frame++) { |
| 542 | #ifdef FLOAT_MIXENG |
| 543 | *out++ = src[frame].l; /* left channel */ |
| 544 | *out++ = src[frame].r; /* right channel */ |
| 545 | #else |
| 546 | #ifdef RECIPROCAL |
| 547 | *out++ = src[frame].l * scale; /* left channel */ |
| 548 | *out++ = src[frame].r * scale; /* right channel */ |
| 549 | #else |
| 550 | *out++ = src[frame].l / scale; /* left channel */ |
| 551 | *out++ = src[frame].r / scale; /* right channel */ |
| 552 | #endif |
| 553 | #endif |
| 554 | } |
| 555 | |
| 556 | rpos = (rpos + frameCount) % hw->samples; |
| 557 | core->decr += frameCount; |
| 558 | core->pos = rpos; |
| 559 | |
| 560 | coreaudio_voice_unlock (core, "audioDeviceIOProc"); |
| 561 | return 0; |
| 562 | } |
| 563 | |
| 564 | static int |
| 565 | coreaudio_write (SWVoiceOut *sw, void *buf, int len) |
| 566 | { |
| 567 | return audio_pcm_sw_write (sw, buf, len); |
| 568 | } |
| 569 | |
| 570 | static int |
| 571 | coreaudio_init_out (HWVoiceOut *hw, audsettings_t *as) |
| 572 | { |
| 573 | coreaudioVoice* core = CORE_OUT(hw); |
| 574 | int err; |
| 575 | |
| 576 | audio_pcm_init_info (&hw->info, as); |
| 577 | |
| 578 | err = coreaudio_voice_init( core, as, conf.out_buffer_frames, audioOutDeviceIOProc, hw, 0 ); |
| 579 | if (err < 0) |
| 580 | return err; |
| 581 | |
| 582 | hw->samples = core->bufferFrameSize * conf.out_nbuffers; |
| 583 | return 0; |
| 584 | } |
| 585 | |
| 586 | static void |
| 587 | coreaudio_fini_out (HWVoiceOut *hw) |
| 588 | { |
| 589 | |
| 590 | coreaudioVoice* core = CORE_OUT(hw); |
| 591 | |
| 592 | coreaudio_voice_fini(core); |
| 593 | } |
| 594 | |
| 595 | static int |
| 596 | coreaudio_ctl_out (HWVoiceOut *hw, int cmd, ...) |
| 597 | { |
| 598 | coreaudioVoice* core = CORE_OUT(hw); |
| 599 | |
| 600 | return coreaudio_voice_ctl(core, cmd); |
| 601 | } |
| 602 | |
| 603 | /***************************************************************************************/ |
| 604 | /***************************************************************************************/ |
| 605 | /*** ***/ |
| 606 | /*** I N P U T V O I C E ***/ |
| 607 | /*** ***/ |
| 608 | /***************************************************************************************/ |
| 609 | /***************************************************************************************/ |
| 610 | |
| 611 | |
| 612 | |
| 613 | typedef struct coreaudioVoiceIn { |
| 614 | HWVoiceIn hw; |
| 615 | coreaudioVoice core[1]; |
| 616 | } coreaudioVoiceIn; |
| 617 | |
| 618 | #define CORE_IN(hw) ((coreaudioVoiceIn*)(hw))->core |
| 619 | |
| 620 | |
| 621 | static int |
| 622 | coreaudio_run_in (HWVoiceIn *hw) |
| 623 | { |
| 624 | int decr; |
| 625 | |
| 626 | coreaudioVoice *core = CORE_IN(hw); |
| 627 | |
| 628 | if (coreaudio_voice_lock (core, "coreaudio_run_in")) { |
| 629 | return 0; |
| 630 | } |
| 631 | D("%s: core.decr=%d core.pos=%d\n", __FUNCTION__, core->decr, core->pos); |
| 632 | decr = core->decr; |
| 633 | core->decr -= decr; |
| 634 | hw->wpos = core->pos; |
| 635 | |
| 636 | coreaudio_voice_unlock (core, "coreaudio_run_in"); |
| 637 | return decr; |
| 638 | } |
| 639 | |
| 640 | |
| 641 | /* callback to feed audiooutput buffer */ |
| 642 | static OSStatus |
| 643 | audioInDeviceIOProc( |
| 644 | AudioDeviceID inDevice, |
| 645 | const AudioTimeStamp* inNow, |
| 646 | const AudioBufferList* inInputData, |
| 647 | const AudioTimeStamp* inInputTime, |
| 648 | AudioBufferList* outOutputData, |
| 649 | const AudioTimeStamp* inOutputTime, |
| 650 | void* hwptr) |
| 651 | { |
| 652 | UInt32 frame, frameCount; |
| 653 | float *in = inInputData->mBuffers[0].mData; |
| 654 | HWVoiceIn *hw = hwptr; |
| 655 | coreaudioVoice *core = CORE_IN(hw); |
| 656 | int wpos, avail; |
| 657 | st_sample_t *dst; |
| 658 | #ifndef FLOAT_MIXENG |
| 659 | #ifdef RECIPROCAL |
| 660 | const float scale = 1.f / UINT_MAX; |
| 661 | #else |
| 662 | const float scale = UINT_MAX; |
| 663 | #endif |
| 664 | #endif |
| 665 | |
| 666 | if (coreaudio_voice_lock (core, "audioDeviceIOProc")) { |
| 667 | inInputTime = 0; |
| 668 | return 0; |
| 669 | } |
| 670 | |
| 671 | frameCount = core->bufferFrameSize; |
| 672 | avail = hw->samples - hw->total_samples_captured - core->decr; |
| 673 | |
| 674 | D("%s: enter avail=%d core.decr=%d core.pos=%d hw.samples=%d hw.total_samples_captured=%d frameCount=%d\n", |
| 675 | __FUNCTION__, avail, core->decr, core->pos, hw->samples, hw->total_samples_captured, (int)frameCount); |
| 676 | |
| 677 | /* if there are not enough samples, set signal and return */ |
| 678 | if (avail < frameCount) { |
| 679 | inInputTime = 0; |
| 680 | coreaudio_voice_unlock (core, "audioDeviceIOProc(empty)"); |
| 681 | return 0; |
| 682 | } |
| 683 | |
| 684 | wpos = core->pos; |
| 685 | dst = hw->conv_buf + wpos; |
| 686 | |
| 687 | /* fill buffer */ |
| 688 | for (frame = 0; frame < frameCount; frame++) { |
| 689 | #ifdef FLOAT_MIXENG |
| 690 | dst[frame].l = *in++; /* left channel */ |
| 691 | dst[frame].r = *in++; /* right channel */ |
| 692 | #else |
| 693 | #ifdef RECIPROCAL |
| 694 | dst[frame].l = *in++ * scale; /* left channel */ |
| 695 | dst[frame].r = *in++ * scale; /* right channel */ |
| 696 | #else |
| 697 | dst[frame].l = *in++ / scale; /* left channel */ |
| 698 | dst[frame].r = *in++ / scale; /* right channel */ |
| 699 | #endif |
| 700 | #endif |
| 701 | } |
| 702 | |
| 703 | wpos = (wpos + frameCount) % hw->samples; |
| 704 | core->decr += frameCount; |
| 705 | core->pos = wpos; |
| 706 | |
| 707 | D("exit: core.decr=%d core.pos=%d\n", core->decr, core->pos); |
| 708 | coreaudio_voice_unlock (core, "audioDeviceIOProc"); |
| 709 | return 0; |
| 710 | } |
| 711 | |
| 712 | static int |
| 713 | coreaudio_read (SWVoiceIn *sw, void *buf, int len) |
| 714 | { |
| 715 | int result = audio_pcm_sw_read(sw, buf, len); |
| 716 | D("%s: audio_pcm_sw_read(%d) returned %d\n", __FUNCTION__, len, result); |
| 717 | return result; |
| 718 | } |
| 719 | |
| 720 | static int |
| 721 | coreaudio_init_in (HWVoiceIn *hw, audsettings_t *as) |
| 722 | { |
| 723 | coreaudioVoice* core = CORE_IN(hw); |
| 724 | int err; |
| 725 | |
| 726 | audio_pcm_init_info (&hw->info, as); |
| 727 | |
| 728 | err = coreaudio_voice_init( core, as, conf.in_buffer_frames, audioInDeviceIOProc, hw, 1 ); |
| 729 | if (err < 0) { |
| 730 | return err; |
| 731 | } |
| 732 | |
| 733 | hw->samples = core->bufferFrameSize * conf.in_nbuffers; |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | static void |
| 738 | coreaudio_fini_in (HWVoiceIn *hw) |
| 739 | { |
| 740 | |
| 741 | coreaudioVoice* core = CORE_IN(hw); |
| 742 | |
| 743 | coreaudio_voice_fini(core); |
| 744 | } |
| 745 | |
| 746 | static int |
| 747 | coreaudio_ctl_in (HWVoiceIn *hw, int cmd, ...) |
| 748 | { |
| 749 | coreaudioVoice* core = CORE_IN(hw); |
| 750 | |
| 751 | return coreaudio_voice_ctl(core, cmd); |
| 752 | } |
| 753 | |
| 754 | static void* |
| 755 | coreaudio_audio_init (void) |
| 756 | { |
| 757 | atexit(coreaudio_atexit); |
| 758 | return &coreaudio_audio_init; |
| 759 | } |
| 760 | |
| 761 | static void |
| 762 | coreaudio_audio_fini (void *opaque) |
| 763 | { |
| 764 | (void) opaque; |
| 765 | } |
| 766 | |
| 767 | static struct audio_option coreaudio_options[] = { |
| 768 | {"OUT_BUFFER_SIZE", AUD_OPT_INT, &conf.out_buffer_frames, |
| 769 | "Size of the output buffer in frames", NULL, 0}, |
| 770 | {"OUT_BUFFER_COUNT", AUD_OPT_INT, &conf.out_nbuffers, |
| 771 | "Number of output buffers", NULL, 0}, |
| 772 | {"IN_BUFFER_SIZE", AUD_OPT_INT, &conf.in_buffer_frames, |
| 773 | "Size of the input buffer in frames", NULL, 0}, |
| 774 | {"IN_BUFFER_COUNT", AUD_OPT_INT, &conf.in_nbuffers, |
| 775 | "Number of input buffers", NULL, 0}, |
| 776 | {NULL, 0, NULL, NULL, NULL, 0} |
| 777 | }; |
| 778 | |
| 779 | static struct audio_pcm_ops coreaudio_pcm_ops = { |
| 780 | coreaudio_init_out, |
| 781 | coreaudio_fini_out, |
| 782 | coreaudio_run_out, |
| 783 | coreaudio_write, |
| 784 | coreaudio_ctl_out, |
| 785 | |
| 786 | #if ENABLE_IN |
| 787 | coreaudio_init_in, |
| 788 | coreaudio_fini_in, |
| 789 | coreaudio_run_in, |
| 790 | coreaudio_read, |
| 791 | coreaudio_ctl_in |
| 792 | #else |
| 793 | NULL, |
| 794 | NULL, |
| 795 | NULL, |
| 796 | NULL, |
| 797 | NULL |
| 798 | #endif |
| 799 | }; |
| 800 | |
| 801 | struct audio_driver coreaudio_audio_driver = { |
| 802 | INIT_FIELD (name = ) "coreaudio", |
| 803 | INIT_FIELD (descr = ) |
| 804 | "CoreAudio (developer.apple.com/audio/coreaudio.html)", |
| 805 | INIT_FIELD (options = ) coreaudio_options, |
| 806 | INIT_FIELD (init = ) coreaudio_audio_init, |
| 807 | INIT_FIELD (fini = ) coreaudio_audio_fini, |
| 808 | INIT_FIELD (pcm_ops = ) &coreaudio_pcm_ops, |
| 809 | INIT_FIELD (can_be_default = ) 1, |
| 810 | #if ENABLE_IN |
| 811 | INIT_FIELD (max_voices_out = ) 1, |
| 812 | INIT_FIELD (max_voices_in = ) 1, |
| 813 | INIT_FIELD (voice_size_out = ) sizeof (coreaudioVoiceOut), |
| 814 | INIT_FIELD (voice_size_in = ) sizeof (coreaudioVoiceIn), |
| 815 | #else |
| 816 | INIT_FIELD (max_voices_out = ) 1, |
| 817 | INIT_FIELD (max_voices_in = ) 0, |
| 818 | INIT_FIELD (voice_size_out = ) sizeof (coreaudioVoiceOut), |
| 819 | INIT_FIELD (voice_size_in = ) 0, |
| 820 | #endif |
| 821 | }; |