1 /*****************************************************************************
2 * auhal.c: AUHAL and Coreaudio output plugin
3 *****************************************************************************
4 * Copyright (C) 2005 - 2013 VLC authors and VideoLAN
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
8 * Felix Paul Kühne <fkuehne at videolan dot org>
9 * David Fuhrmann <david dot fuhrmann at googlemail dot com>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 2.1 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software Foundation,
23 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
32 #import <vlc_common.h>
33 #import <vlc_plugin.h>
34 #import <vlc_dialog.h> // dialog_Fatal
35 #import <vlc_aout.h> // aout_*
37 #import <AudioUnit/AudioUnit.h> // AudioUnit
38 #import <CoreAudio/CoreAudio.h> // AudioDeviceID
39 #import <AudioToolbox/AudioFormat.h> // AudioFormatGetProperty
40 #import <CoreServices/CoreServices.h>
42 #import "TPCircularBuffer.h"
45 #pragma mark private declarations
48 # define verify_noerr(a) assert((a) == noErr)
51 #define STREAM_FORMAT_MSG(pre, sfm) \
52 pre "[%f][%4.4s][%u][%u][%u][%u][%u][%u]", \
53 sfm.mSampleRate, (char *)&sfm.mFormatID, \
54 (unsigned int)sfm.mFormatFlags, (unsigned int)sfm.mBytesPerPacket, \
55 (unsigned int)sfm.mFramesPerPacket, (unsigned int)sfm.mBytesPerFrame, \
56 (unsigned int)sfm.mChannelsPerFrame, (unsigned int)sfm.mBitsPerChannel
58 #define AOUT_VAR_SPDIF_FLAG 0xf00000
60 #define AUDIO_BUFFER_SIZE_IN_SECONDS (AOUT_MAX_ADVANCE_TIME / CLOCK_FREQ)
63 #define AOUT_VOLUME_DEFAULT 256
64 #define AOUT_VOLUME_MAX 512
66 #define VOLUME_TEXT N_("Audio volume")
67 #define VOLUME_LONGTEXT VOLUME_TEXT
69 #define DEVICE_TEXT N_("Last audio device")
70 #define DEVICE_LONGTEXT DEVICE_TEXT
72 /*****************************************************************************
73 * aout_sys_t: private audio output method descriptor
74 *****************************************************************************
75 * This structure is part of the audio output thread descriptor.
76 * It describes the CoreAudio specific properties of an output thread.
77 *****************************************************************************/
80 AudioObjectID i_selected_dev; /* DeviceID of the selected device */
81 AudioObjectID i_new_selected_dev; /* DeviceID of device which will be selected on start */
82 bool b_selected_dev_is_digital;
83 AudioDeviceIOProcID i_procID; /* DeviceID of current device */
84 bool b_digital; /* Are we running in digital mode? */
86 uint8_t chans_to_reorder; /* do we need channel reordering */
87 uint8_t chan_table[AOUT_CHAN_MAX];
89 TPCircularBuffer circular_buffer; /* circular buffer to swap the audio data */
92 AudioComponent au_component; /* The AudioComponent we use */
93 AudioUnit au_unit; /* The AudioUnit we use */
95 /* CoreAudio SPDIF mode specific */
96 pid_t i_hog_pid; /* The keep the pid of our hog status */
97 AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
98 int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
99 AudioStreamBasicDescription stream_format; /* The format we changed the stream to */
100 AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
101 bool b_revert; /* Whether we need to revert the stream format */
102 bool b_changed_mixing; /* Whether we need to set the mixing mode back */
105 bool b_got_first_sample; /* did the aout core provide something to render? */
107 int i_rate; /* media sample rate */
108 int i_bytes_per_sample;
110 CFArrayRef device_list;
112 vlc_mutex_t var_lock; /* protects access to device_list and i_selected_dev */
122 #pragma mark local prototypes & module descriptor
124 static int Open (vlc_object_t *);
125 static void Close (vlc_object_t *);
126 static int Start (audio_output_t *, audio_sample_format_t *);
127 static int StartAnalog (audio_output_t *, audio_sample_format_t *);
128 static int StartSPDIF (audio_output_t *, audio_sample_format_t *);
129 static void Stop (audio_output_t *);
131 static void RebuildDeviceList (audio_output_t *);
132 static int SwitchAudioDevice (audio_output_t *p_aout, const char *name);
133 static int VolumeSet (audio_output_t *, float);
134 static int MuteSet (audio_output_t *, bool);
136 static void Play (audio_output_t *, block_t *);
137 static void Pause (audio_output_t *, bool, mtime_t);
138 static void Flush (audio_output_t *, bool);
139 static int TimeGet (audio_output_t *, mtime_t *);
140 static OSStatus RenderCallbackAnalog (vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
141 UInt32 , UInt32, AudioBufferList *);
143 static OSStatus RenderCallbackSPDIF (AudioDeviceID, const AudioTimeStamp *, const void *, const AudioTimeStamp *,
144 AudioBufferList *, const AudioTimeStamp *, void *);
146 static OSStatus DevicesListener (AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *);
147 static OSStatus DeviceAliveListener (AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *);
148 static OSStatus StreamsChangedListener (AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *);
150 static OSStatus StreamListener (AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *);
152 static int ManageAudioStreamsCallback(audio_output_t *p_aout, AudioDeviceID i_dev_id, bool b_register);
153 static int AudioDeviceHasOutput (AudioDeviceID);
154 static int AudioDeviceSupportsDigital(audio_output_t *, AudioDeviceID);
155 static int AudioStreamSupportsDigital(audio_output_t *, AudioStreamID);
156 static int AudioStreamChangeFormat (audio_output_t *, AudioStreamID, AudioStreamBasicDescription);
160 set_shortname("auhal")
161 set_description(N_("HAL AudioUnit output"))
162 set_capability("audio output", 101)
163 set_category(CAT_AUDIO)
164 set_subcategory(SUBCAT_AUDIO_AOUT)
165 set_callbacks(Open, Close)
166 add_integer("auhal-volume", AOUT_VOLUME_DEFAULT,
167 VOLUME_TEXT, VOLUME_LONGTEXT, true)
168 change_integer_range(0, AOUT_VOLUME_MAX)
169 add_string("auhal-audio-device", "", DEVICE_TEXT, DEVICE_LONGTEXT, true)
170 add_obsolete_integer("macosx-audio-device") /* since 2.1.0 */
174 #pragma mark initialization
176 static int Open(vlc_object_t *obj)
178 audio_output_t *p_aout = (audio_output_t *)obj;
179 aout_sys_t *p_sys = malloc(sizeof (*p_sys));
180 if (unlikely(p_sys == NULL))
183 OSStatus err = noErr;
185 vlc_mutex_init(&p_sys->var_lock);
186 vlc_mutex_init(&p_sys->lock);
187 vlc_cond_init(&p_sys->cond);
188 p_sys->b_digital = false;
191 p_aout->start = Start;
193 p_aout->volume_set = VolumeSet;
194 p_aout->mute_set = MuteSet;
195 p_aout->device_select = SwitchAudioDevice;
196 p_sys->device_list = CFArrayCreate(kCFAllocatorDefault, NULL, 0, NULL);
198 /* Attach a Listener so that we are notified of a change in the Device setup */
199 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
200 err = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &audioDevicesAddress, DevicesListener, (void *)p_aout);
202 msg_Err(p_aout, "failed to add listener for audio device configuration [%4.4s]", (char *)&err);
204 RebuildDeviceList(p_aout);
206 /* remember the volume */
207 p_sys->f_volume = var_InheritInteger(p_aout, "auhal-volume") / (float)AOUT_VOLUME_DEFAULT;
208 aout_VolumeReport(p_aout, p_sys->f_volume);
209 p_sys->b_mute = var_InheritBool(p_aout, "mute");
210 aout_MuteReport(p_aout, p_sys->b_mute);
212 char *psz_audio_device = config_GetPsz(p_aout, "auhal-audio-device");
213 SwitchAudioDevice(p_aout, psz_audio_device);
214 free(psz_audio_device);
219 static void Close(vlc_object_t *obj)
221 audio_output_t *p_aout = (audio_output_t *)obj;
222 aout_sys_t *p_sys = p_aout->sys;
224 OSStatus err = noErr;
226 /* remove audio devices callback */
227 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
228 err = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &audioDevicesAddress, DevicesListener, (void *)p_aout);
230 msg_Err(p_aout, "AudioHardwareRemovePropertyListener failed [%4.4s]", (char *)&err);
232 vlc_mutex_lock(&p_sys->var_lock);
233 /* remove streams callbacks */
234 CFIndex count = CFArrayGetCount(p_sys->device_list);
236 for (CFIndex x = 0; x < count; x++) {
237 AudioDeviceID deviceId = 0;
238 CFNumberRef cfn_device_id = CFArrayGetValueAtIndex(p_sys->device_list, x);
242 CFNumberGetValue(cfn_device_id, kCFNumberSInt32Type, &deviceId);
243 if (!(deviceId & AOUT_VAR_SPDIF_FLAG)) {
244 ManageAudioStreamsCallback(p_aout, deviceId, false);
249 CFRelease(p_sys->device_list);
250 vlc_mutex_unlock(&p_sys->var_lock);
252 char *psz_device = aout_DeviceGet(p_aout);
253 config_PutPsz(p_aout, "auhal-audio-device", psz_device);
256 vlc_mutex_destroy(&p_sys->var_lock);
257 vlc_mutex_destroy(&p_sys->lock);
258 vlc_cond_destroy(&p_sys->cond);
263 static int Start(audio_output_t *p_aout, audio_sample_format_t *restrict fmt)
265 OSStatus err = noErr;
266 UInt32 i_param_size = 0;
267 struct aout_sys_t *p_sys = NULL;
269 /* Use int here, to match kAudioDevicePropertyDeviceIsAlive
273 bool b_start_digital = false;
276 p_sys->b_digital = false;
277 p_sys->au_component = NULL;
278 p_sys->au_unit = NULL;
279 p_sys->i_hog_pid = -1;
280 p_sys->i_stream_id = 0;
281 p_sys->i_stream_index = -1;
282 p_sys->b_revert = false;
283 p_sys->b_changed_mixing = false;
284 p_sys->i_bytes_per_sample = 0;
286 vlc_mutex_lock(&p_sys->var_lock);
287 p_sys->i_selected_dev = p_sys->i_new_selected_dev;
289 aout_FormatPrint(p_aout, "VLC is looking for:", fmt);
291 msg_Dbg(p_aout, "attempting to use device %i", p_sys->i_selected_dev);
293 AudioObjectPropertyAddress audioDeviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
294 if (p_sys->i_selected_dev > 0) {
295 /* Check if the desired device is alive and usable */
296 i_param_size = sizeof(b_alive);
297 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceAliveAddress, 0, NULL, &i_param_size, &b_alive);
299 /* Be tolerant, only give a warning here */
300 msg_Warn(p_aout, "could not check whether device [0x%x] is alive [%4.4s]",
301 (unsigned int)p_sys->i_selected_dev, (char *)&err);
306 msg_Warn(p_aout, "selected audio device is not alive, switching to default device");
309 if (!b_alive || p_sys->i_selected_dev == 0) {
310 AudioObjectID defaultDeviceID = 0;
311 UInt32 propertySize = 0;
312 AudioObjectPropertyAddress defaultDeviceAddress = { kAudioHardwarePropertyDefaultOutputDevice, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
313 propertySize = sizeof(AudioObjectID);
314 err = AudioObjectGetPropertyData(kAudioObjectSystemObject, &defaultDeviceAddress, 0, NULL, &propertySize, &defaultDeviceID);
316 msg_Err(p_aout, "could not get default audio device [%4.4s]", (char *)&err);
320 msg_Dbg(p_aout, "using default audio device %i", defaultDeviceID);
322 p_sys->i_selected_dev = defaultDeviceID;
323 p_sys->b_selected_dev_is_digital = var_InheritBool(p_aout, "spdif");
326 // recheck if device still supports digital
327 b_start_digital = p_sys->b_selected_dev_is_digital;
328 if(!AudioDeviceSupportsDigital(p_aout, p_sys->i_selected_dev))
329 b_start_digital = false;
332 msg_Dbg(p_aout, "Using audio device for digital output");
334 msg_Dbg(p_aout, "Audio device supports PCM mode only");
336 /* add a callback to see if the device dies later on */
337 err = AudioObjectAddPropertyListener(p_sys->i_selected_dev, &audioDeviceAliveAddress, DeviceAliveListener, (void *)p_aout);
339 /* Be tolerant, only give a warning here */
340 msg_Warn(p_aout, "could not set alive check callback on device [0x%x] [%4.4s]",
341 (unsigned int)p_sys->i_selected_dev, (char *)&err);
344 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
345 kAudioDevicePropertyScopeOutput,
346 kAudioObjectPropertyElementMaster };
347 i_param_size = sizeof(p_sys->i_hog_pid);
348 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, &i_param_size, &p_sys->i_hog_pid);
350 /* This is not a fatal error. Some drivers simply don't support this property */
351 msg_Warn(p_aout, "could not check whether device is hogged [%4.4s]",
353 p_sys->i_hog_pid = -1;
356 if (p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid()) {
357 msg_Err(p_aout, "Selected audio device is exclusively in use by another program.");
358 dialog_Fatal(p_aout, _("Audio output failed"), "%s",
359 _("The selected audio output device is exclusively in "
360 "use by another program."));
364 bool b_success = false;
366 /* Check for Digital mode or Analog output mode */
367 if (AOUT_FMT_SPDIF (fmt) && b_start_digital) {
368 if (StartSPDIF (p_aout, fmt)) {
369 msg_Dbg(p_aout, "digital output successfully opened");
373 if (StartAnalog(p_aout, fmt)) {
374 msg_Dbg(p_aout, "analog output successfully opened");
378 vlc_mutex_unlock(&p_sys->var_lock);
382 p_aout->flush = Flush;
383 p_aout->time_get = TimeGet;
384 p_aout->pause = Pause;
389 /* If we reach this, this aout has failed */
390 vlc_mutex_unlock(&p_sys->var_lock);
391 msg_Err(p_aout, "opening auhal output failed");
396 * StartAnalog: open and setup a HAL AudioUnit to do PCM audio output
398 static int StartAnalog(audio_output_t *p_aout, audio_sample_format_t *fmt)
400 struct aout_sys_t *p_sys = p_aout->sys;
401 OSStatus err = noErr;
402 UInt32 i_param_size = 0;
404 AudioComponentDescription desc;
405 AudioStreamBasicDescription DeviceFormat;
406 AudioChannelLayout *layout;
407 AudioChannelLayout new_layout;
408 AURenderCallbackStruct input;
409 p_aout->sys->chans_to_reorder = 0;
411 SInt32 currentMinorSystemVersion;
412 if(Gestalt(gestaltSystemVersionMinor, ¤tMinorSystemVersion) != noErr)
413 msg_Err(p_aout, "failed to check OSX version");
415 /* Lets go find our Component */
416 desc.componentType = kAudioUnitType_Output;
417 desc.componentSubType = kAudioUnitSubType_HALOutput;
418 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
419 desc.componentFlags = 0;
420 desc.componentFlagsMask = 0;
422 p_sys->au_component = AudioComponentFindNext(NULL, &desc);
423 if (p_sys->au_component == NULL) {
424 msg_Err(p_aout, "cannot find any HAL component, PCM output failed");
428 err = AudioComponentInstanceNew(p_sys->au_component, &p_sys->au_unit);
430 msg_Err(p_aout, "cannot open HAL component, PCM output failed [%4.4s]", (char *)&err);
434 /* Set the device we will use for this output unit */
435 err = AudioUnitSetProperty(p_sys->au_unit,
436 kAudioOutputUnitProperty_CurrentDevice,
437 kAudioUnitScope_Global,
439 &p_sys->i_selected_dev,
440 sizeof(AudioObjectID));
443 msg_Err(p_aout, "cannot select audio output device, PCM output failed [%4.4s]", (char *)&err);
447 /* Get the current format */
448 i_param_size = sizeof(AudioStreamBasicDescription);
450 err = AudioUnitGetProperty(p_sys->au_unit,
451 kAudioUnitProperty_StreamFormat,
452 kAudioUnitScope_Output,
458 msg_Err(p_aout, "failed to detect supported stream formats [%4.4s]", (char *)&err);
461 msg_Dbg(p_aout, STREAM_FORMAT_MSG("current format is: ", DeviceFormat));
463 /* Get the channel layout of the device side of the unit (vlc -> unit -> device) */
464 err = AudioUnitGetPropertyInfo(p_sys->au_unit,
465 kAudioDevicePropertyPreferredChannelLayout,
466 kAudioUnitScope_Output,
472 layout = (AudioChannelLayout *)malloc(i_param_size);
474 verify_noerr(AudioUnitGetProperty(p_sys->au_unit,
475 kAudioDevicePropertyPreferredChannelLayout,
476 kAudioUnitScope_Output,
481 /* We need to "fill out" the ChannelLayout, because there are multiple ways that it can be set */
482 if (layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap) {
483 /* bitmap defined channellayout */
484 verify_noerr(AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForBitmap,
485 sizeof(UInt32), &layout->mChannelBitmap,
488 } else if (layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions)
490 /* layouttags defined channellayout */
491 verify_noerr(AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForTag,
492 sizeof(AudioChannelLayoutTag), &layout->mChannelLayoutTag,
497 msg_Dbg(p_aout, "layout of AUHAL has %i channels" , layout->mNumberChannelDescriptions);
499 if (layout->mNumberChannelDescriptions == 0) {
500 msg_Err(p_aout, "insufficient number of output channels");
504 /* Initialize the VLC core channel count */
505 fmt->i_physical_channels = 0;
506 i_original = fmt->i_original_channels & AOUT_CHAN_PHYSMASK;
508 if (i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2) {
509 /* We only need Mono or cannot output more than 1 channel */
510 fmt->i_physical_channels = AOUT_CHAN_CENTER;
511 } else if (i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3) {
512 /* We only need Stereo or cannot output more than 2 channels */
513 fmt->i_physical_channels = AOUT_CHANS_STEREO;
515 /* We want more than stereo and we can do that */
516 for (unsigned int i = 0; i < layout->mNumberChannelDescriptions; i++) {
518 msg_Dbg(p_aout, "this is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel);
521 switch(layout->mChannelDescriptions[i].mChannelLabel) {
522 case kAudioChannelLabel_Left:
523 fmt->i_physical_channels |= AOUT_CHAN_LEFT;
525 case kAudioChannelLabel_Right:
526 fmt->i_physical_channels |= AOUT_CHAN_RIGHT;
528 case kAudioChannelLabel_Center:
529 fmt->i_physical_channels |= AOUT_CHAN_CENTER;
531 case kAudioChannelLabel_LFEScreen:
532 fmt->i_physical_channels |= AOUT_CHAN_LFE;
534 case kAudioChannelLabel_LeftSurround:
535 fmt->i_physical_channels |= AOUT_CHAN_REARLEFT;
537 case kAudioChannelLabel_RightSurround:
538 fmt->i_physical_channels |= AOUT_CHAN_REARRIGHT;
540 case kAudioChannelLabel_RearSurroundLeft:
541 fmt->i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
543 case kAudioChannelLabel_RearSurroundRight:
544 fmt->i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
546 case kAudioChannelLabel_CenterSurround:
547 fmt->i_physical_channels |= AOUT_CHAN_REARCENTER;
550 msg_Warn(p_aout, "unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel);
553 if (fmt->i_physical_channels == 0) {
554 fmt->i_physical_channels = AOUT_CHANS_STEREO;
555 msg_Err(p_aout, "You should configure your speaker layout with Audio Midi Setup in /Applications/Utilities. VLC will output Stereo only.");
556 dialog_Fatal(p_aout, _("Audio device is not configured"), "%s",
557 _("You should configure your speaker layout with "
558 "\"Audio Midi Setup\" in /Applications/"
559 "Utilities. VLC will output Stereo only."));
564 msg_Warn(p_aout, "device driver does not support kAudioDevicePropertyPreferredChannelLayout - using stereo fallback [%4.4s]", (char *)&err);
565 fmt->i_physical_channels = AOUT_CHANS_STEREO;
568 msg_Dbg(p_aout, "selected %d physical channels for device output", aout_FormatNbChannels(fmt));
569 msg_Dbg(p_aout, "VLC will output: %s", aout_FormatPrintChannels(fmt));
571 memset (&new_layout, 0, sizeof(new_layout));
572 uint32_t chans_out[AOUT_CHAN_MAX];
574 /* Some channel abbreviations used below:
579 * Rs - right surround
580 * Cs - center surround
581 * Rls - rear left surround
582 * Rrs - rear right surround
585 * Lsd - left surround direct
586 * Rsd - right surround direct
590 * Vhl - vertical height left
591 * Vhc - vertical height center
592 * Vhr - vertical height right
593 * Lt - left matrix total. for matrix encoded stereo.
594 * Rt - right matrix total. for matrix encoded stereo. */
596 switch(aout_FormatNbChannels(fmt)) {
598 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
601 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
604 if (fmt->i_physical_channels & AOUT_CHAN_CENTER)
605 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
606 else if (fmt->i_physical_channels & AOUT_CHAN_LFE)
607 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
610 if (fmt->i_physical_channels & (AOUT_CHAN_CENTER | AOUT_CHAN_LFE))
611 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
612 else if (fmt->i_physical_channels & (AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT))
613 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
614 else if (fmt->i_physical_channels & (AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER))
615 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
618 if (fmt->i_physical_channels & (AOUT_CHAN_CENTER))
619 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
620 else if (fmt->i_physical_channels & (AOUT_CHAN_LFE))
621 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
624 if (fmt->i_physical_channels & (AOUT_CHAN_LFE)) {
625 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
627 chans_out[0] = AOUT_CHAN_LEFT;
628 chans_out[1] = AOUT_CHAN_RIGHT;
629 chans_out[2] = AOUT_CHAN_REARLEFT;
630 chans_out[3] = AOUT_CHAN_REARRIGHT;
631 chans_out[4] = AOUT_CHAN_CENTER;
632 chans_out[5] = AOUT_CHAN_LFE;
634 p_aout->sys->chans_to_reorder = aout_CheckChannelReorder(NULL, chans_out, fmt->i_physical_channels, p_aout->sys->chan_table);
635 if (p_aout->sys->chans_to_reorder)
636 msg_Dbg(p_aout, "channel reordering needed for 5.1 output");
638 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_AudioUnit_6_0; // L R Ls Rs C Cs
640 chans_out[0] = AOUT_CHAN_LEFT;
641 chans_out[1] = AOUT_CHAN_RIGHT;
642 chans_out[2] = AOUT_CHAN_REARLEFT;
643 chans_out[3] = AOUT_CHAN_REARRIGHT;
644 chans_out[4] = AOUT_CHAN_CENTER;
645 chans_out[5] = AOUT_CHAN_REARCENTER;
647 p_aout->sys->chans_to_reorder = aout_CheckChannelReorder(NULL, chans_out, fmt->i_physical_channels, p_aout->sys->chan_table);
648 if (p_aout->sys->chans_to_reorder)
649 msg_Dbg(p_aout, "channel reordering needed for 6.0 output");
653 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
655 chans_out[0] = AOUT_CHAN_LEFT;
656 chans_out[1] = AOUT_CHAN_RIGHT;
657 chans_out[2] = AOUT_CHAN_CENTER;
658 chans_out[3] = AOUT_CHAN_LFE;
659 chans_out[4] = AOUT_CHAN_REARLEFT;
660 chans_out[5] = AOUT_CHAN_REARRIGHT;
661 chans_out[6] = AOUT_CHAN_REARCENTER;
663 p_aout->sys->chans_to_reorder = aout_CheckChannelReorder(NULL, chans_out, fmt->i_physical_channels, p_aout->sys->chan_table);
664 if (p_aout->sys->chans_to_reorder)
665 msg_Dbg(p_aout, "channel reordering needed for 6.1 output");
669 if (fmt->i_physical_channels & (AOUT_CHAN_LFE) || currentMinorSystemVersion < 7) {
670 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
672 chans_out[0] = AOUT_CHAN_LEFT;
673 chans_out[1] = AOUT_CHAN_RIGHT;
674 chans_out[2] = AOUT_CHAN_CENTER;
675 chans_out[3] = AOUT_CHAN_LFE;
676 chans_out[4] = AOUT_CHAN_MIDDLELEFT;
677 chans_out[5] = AOUT_CHAN_MIDDLERIGHT;
678 chans_out[6] = AOUT_CHAN_REARLEFT;
679 chans_out[7] = AOUT_CHAN_REARRIGHT;
681 if (!(fmt->i_physical_channels & (AOUT_CHAN_LFE)))
682 msg_Warn(p_aout, "8.0 audio output not supported on OS X 10.%i, layout will be incorrect", currentMinorSystemVersion);
684 #ifdef MAC_OS_X_VERSION_10_7
686 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DTS_8_0_B; // Lc C Rc L R Ls Cs Rs
688 chans_out[0] = AOUT_CHAN_MIDDLELEFT;
689 chans_out[1] = AOUT_CHAN_CENTER;
690 chans_out[2] = AOUT_CHAN_MIDDLERIGHT;
691 chans_out[3] = AOUT_CHAN_LEFT;
692 chans_out[4] = AOUT_CHAN_RIGHT;
693 chans_out[5] = AOUT_CHAN_REARLEFT;
694 chans_out[6] = AOUT_CHAN_REARCENTER;
695 chans_out[7] = AOUT_CHAN_REARRIGHT;
698 p_aout->sys->chans_to_reorder = aout_CheckChannelReorder(NULL, chans_out, fmt->i_physical_channels, p_aout->sys->chan_table);
699 if (p_aout->sys->chans_to_reorder)
700 msg_Dbg(p_aout, "channel reordering needed for 7.1 / 8.0 output");
704 if (currentMinorSystemVersion < 7) {
705 msg_Warn(p_aout, "8.1 audio output not supported on OS X 10.%i", currentMinorSystemVersion);
709 #ifdef MAC_OS_X_VERSION_10_7
710 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DTS_8_1_B; // Lc C Rc L R Ls Cs Rs LFE
711 chans_out[0] = AOUT_CHAN_MIDDLELEFT;
712 chans_out[1] = AOUT_CHAN_CENTER;
713 chans_out[2] = AOUT_CHAN_MIDDLERIGHT;
714 chans_out[3] = AOUT_CHAN_LEFT;
715 chans_out[4] = AOUT_CHAN_RIGHT;
716 chans_out[5] = AOUT_CHAN_REARLEFT;
717 chans_out[6] = AOUT_CHAN_REARCENTER;
718 chans_out[7] = AOUT_CHAN_REARRIGHT;
719 chans_out[8] = AOUT_CHAN_LFE;
721 p_aout->sys->chans_to_reorder = aout_CheckChannelReorder(NULL, chans_out, fmt->i_physical_channels, p_aout->sys->chan_table);
722 if (p_aout->sys->chans_to_reorder)
723 msg_Dbg(p_aout, "channel reordering needed for 8.1 output");
728 /* Set up the format to be used */
729 DeviceFormat.mSampleRate = fmt->i_rate;
730 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
731 p_sys->i_rate = fmt->i_rate;
733 /* We use float 32 since this is VLC's endorsed format */
734 fmt->i_format = VLC_CODEC_FL32;
735 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
736 DeviceFormat.mBitsPerChannel = 32;
737 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels(fmt);
739 /* Calculate framesizes and stuff */
740 DeviceFormat.mFramesPerPacket = 1;
741 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
742 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
744 /* Set the desired format */
745 i_param_size = sizeof(AudioStreamBasicDescription);
746 verify_noerr(AudioUnitSetProperty(p_sys->au_unit,
747 kAudioUnitProperty_StreamFormat,
748 kAudioUnitScope_Input,
753 msg_Dbg(p_aout, STREAM_FORMAT_MSG("we set the AU format: " , DeviceFormat));
755 /* Retrieve actual format */
756 verify_noerr(AudioUnitGetProperty(p_sys->au_unit,
757 kAudioUnitProperty_StreamFormat,
758 kAudioUnitScope_Input,
763 msg_Dbg(p_aout, STREAM_FORMAT_MSG("the actual set AU format is " , DeviceFormat));
765 /* Do the last VLC aout setups */
766 aout_FormatPrepare(fmt);
768 /* set the IOproc callback */
769 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
770 input.inputProcRefCon = p_aout;
772 verify_noerr(AudioUnitSetProperty(p_sys->au_unit,
773 kAudioUnitProperty_SetRenderCallback,
774 kAudioUnitScope_Input,
775 0, &input, sizeof(input)));
777 /* Set the new_layout as the layout VLC will use to feed the AU unit */
778 verify_noerr(AudioUnitSetProperty(p_sys->au_unit,
779 kAudioUnitProperty_AudioChannelLayout,
780 kAudioUnitScope_Output,
781 0, &new_layout, sizeof(new_layout)));
783 if (new_layout.mNumberChannelDescriptions > 0)
784 free(new_layout.mChannelDescriptions);
787 verify_noerr(AudioUnitInitialize(p_sys->au_unit));
789 /* setup circular buffer */
790 TPCircularBufferInit(&p_sys->circular_buffer, AUDIO_BUFFER_SIZE_IN_SECONDS *
791 fmt->i_rate * fmt->i_bytes_per_frame);
793 p_sys->b_got_first_sample = false;
795 /* Set volume for output unit */
796 VolumeSet(p_aout, p_sys->f_volume);
797 MuteSet(p_aout, p_sys->b_mute);
803 * StartSPDIF: Setup an encoded digital stream (SPDIF) output
805 static int StartSPDIF(audio_output_t * p_aout, audio_sample_format_t *fmt)
807 struct aout_sys_t *p_sys = p_aout->sys;
808 OSStatus err = noErr;
809 UInt32 i_param_size = 0, b_mix = 0;
810 Boolean b_writeable = false;
811 AudioStreamID *p_streams = NULL;
812 unsigned i_streams = 0;
814 /* Start doing the SPDIF setup proces */
815 p_sys->b_digital = true;
818 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
819 i_param_size = sizeof(p_sys->i_hog_pid);
820 p_sys->i_hog_pid = getpid() ;
822 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid);
825 msg_Err(p_aout, "failed to set hogmode [%4.4s]", (char *)&err);
829 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
831 if (AudioObjectHasProperty(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress)) {
832 /* Set mixable to false if we are allowed to */
833 err = AudioObjectIsPropertySettable(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable);
834 err = AudioObjectGetPropertyDataSize(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size);
835 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix);
837 if (err == noErr && b_writeable) {
839 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix);
840 p_sys->b_changed_mixing = true;
844 msg_Err(p_aout, "failed to set mixmode [%4.4s]", (char *)&err);
849 /* Get a list of all the streams on this device */
850 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
851 err = AudioObjectGetPropertyDataSize(p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size);
853 msg_Err(p_aout, "could not get size of stream description packet [%4.4s]", (char *)&err);
857 i_streams = i_param_size / sizeof(AudioStreamID);
858 p_streams = (AudioStreamID *)malloc(i_param_size);
859 if (p_streams == NULL)
862 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams);
865 msg_Err(p_aout, "could not fetch stream descriptions [%4.4s]", (char *)&err);
870 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
871 for (unsigned i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++) {
872 /* Find a stream with a cac3 stream */
873 AudioStreamRangedDescription *p_format_list = NULL;
875 bool b_digital = false;
877 /* Retrieve all the stream formats supported by each output stream */
878 err = AudioObjectGetPropertyDataSize(p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size);
880 msg_Err(p_aout, "could not get number of streamformats: [%4.4s] (%i)", (char *)&err, (int32_t)err);
884 i_formats = i_param_size / sizeof(AudioStreamRangedDescription);
885 p_format_list = (AudioStreamRangedDescription *)malloc(i_param_size);
886 if (p_format_list == NULL)
889 err = AudioObjectGetPropertyData(p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list);
891 msg_Err(p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err);
896 /* Check if one of the supported formats is a digital format */
897 for (int j = 0; j < i_formats; j++) {
898 if (p_format_list[j].mFormat.mFormatID == 'IAC3' ||
899 p_format_list[j].mFormat.mFormatID == 'iac3' ||
900 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
901 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3) {
908 /* if this stream supports a digital (cac3) format, then go set it. */
909 int i_requested_rate_format = -1;
910 int i_current_rate_format = -1;
911 int i_backup_rate_format = -1;
913 p_sys->i_stream_id = p_streams[i];
914 p_sys->i_stream_index = i;
916 if (!p_sys->b_revert) {
917 AudioObjectPropertyAddress currentPhysicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
918 /* Retrieve the original format of this stream first if not done so already */
919 i_param_size = sizeof(p_sys->sfmt_revert);
920 err = AudioObjectGetPropertyData(p_sys->i_stream_id, ¤tPhysicalFormatAddress, 0, NULL, &i_param_size, &p_sys->sfmt_revert);
922 msg_Err(p_aout, "could not retrieve the original streamformat [%4.4s]", (char *)&err);
925 p_sys->b_revert = true;
928 for (int j = 0; j < i_formats; j++) {
929 if (p_format_list[j].mFormat.mFormatID == 'IAC3' ||
930 p_format_list[j].mFormat.mFormatID == 'iac3' ||
931 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
932 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3) {
933 if (p_format_list[j].mFormat.mSampleRate == fmt->i_rate) {
934 i_requested_rate_format = j;
936 } else if (p_format_list[j].mFormat.mSampleRate == p_sys->sfmt_revert.mSampleRate)
937 i_current_rate_format = j;
939 if (i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate)
940 i_backup_rate_format = j;
946 if (i_requested_rate_format >= 0) /* We prefer to output at the samplerate of the original audio */
947 p_sys->stream_format = p_format_list[i_requested_rate_format].mFormat;
948 else if (i_current_rate_format >= 0) /* If not possible, we will try to use the current samplerate of the device */
949 p_sys->stream_format = p_format_list[i_current_rate_format].mFormat;
951 p_sys->stream_format = p_format_list[i_backup_rate_format].mFormat; /* And if we have to, any digital format will be just fine (highest rate possible) */
957 msg_Dbg(p_aout, STREAM_FORMAT_MSG("original stream format: ", p_sys->sfmt_revert));
959 if (!AudioStreamChangeFormat(p_aout, p_sys->i_stream_id, p_sys->stream_format)) {
960 msg_Err(p_aout, "failed to change stream format for SPDIF output");
964 /* Set the format flags */
965 if (p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian)
966 fmt->i_format = VLC_CODEC_SPDIFB;
968 fmt->i_format = VLC_CODEC_SPDIFL;
969 fmt->i_bytes_per_frame = AOUT_SPDIF_SIZE;
970 fmt->i_frame_length = A52_FRAME_NB;
971 fmt->i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
972 p_sys->i_rate = fmt->i_rate;
973 aout_FormatPrepare(fmt);
975 /* Add IOProc callback */
976 err = AudioDeviceCreateIOProcID(p_sys->i_selected_dev,
977 (AudioDeviceIOProc)RenderCallbackSPDIF,
981 msg_Err(p_aout, "Failed to create Process ID [%4.4s]", (char *)&err);
986 err = AudioDeviceStart(p_sys->i_selected_dev, p_sys->i_procID);
988 msg_Err(p_aout, "Failed to start audio device [%4.4s]", (char *)&err);
990 err = AudioDeviceDestroyIOProcID(p_sys->i_selected_dev, p_sys->i_procID);
992 msg_Err(p_aout, "Failed to destroy process ID [%4.4s]", (char *)&err);
997 /* setup circular buffer */
998 TPCircularBufferInit(&p_sys->circular_buffer, 200 * AOUT_SPDIF_SIZE);
1003 static void Stop(audio_output_t *p_aout)
1005 struct aout_sys_t *p_sys = p_aout->sys;
1006 OSStatus err = noErr;
1007 UInt32 i_param_size = 0;
1009 if (p_sys->au_unit) {
1010 verify_noerr(AudioOutputUnitStop(p_sys->au_unit));
1011 verify_noerr(AudioUnitUninitialize(p_sys->au_unit));
1012 verify_noerr(AudioComponentInstanceDispose(p_sys->au_unit));
1015 vlc_mutex_lock(&p_sys->var_lock);
1016 if (p_sys->b_digital) {
1018 err = AudioDeviceStop(p_sys->i_selected_dev,
1021 msg_Err(p_aout, "Failed to stop audio device [%4.4s]", (char *)&err);
1023 /* Remove IOProc callback */
1024 err = AudioDeviceDestroyIOProcID(p_sys->i_selected_dev,
1027 msg_Err(p_aout, "Failed to destroy Process ID [%4.4s]", (char *)&err);
1029 if (p_sys->b_revert)
1030 AudioStreamChangeFormat(p_aout, p_sys->i_stream_id, p_sys->sfmt_revert);
1032 if (p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3) {
1034 Boolean b_writeable = false;
1035 /* Revert mixable to true if we are allowed to */
1036 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1037 err = AudioObjectIsPropertySettable(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable);
1038 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix);
1040 if (err == noErr && b_writeable) {
1041 msg_Dbg(p_aout, "mixable is: %d", b_mix);
1043 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix);
1047 msg_Err(p_aout, "failed to re-set mixmode [%4.4s]", (char *)&err);
1051 if (p_sys->i_hog_pid == getpid()) {
1052 p_sys->i_hog_pid = -1;
1053 i_param_size = sizeof(p_sys->i_hog_pid);
1054 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
1055 kAudioDevicePropertyScopeOutput,
1056 kAudioObjectPropertyElementMaster };
1057 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid);
1059 msg_Err(p_aout, "Failed to release hogmode [%4.4s]", (char *)&err);
1062 /* remove audio device alive callback */
1063 AudioObjectPropertyAddress deviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1064 err = AudioObjectRemovePropertyListener(p_sys->i_selected_dev, &deviceAliveAddress, DeviceAliveListener, (void *)p_aout);
1066 /* Be tolerant, only give a warning here */
1067 msg_Warn(p_aout, "failed to remove audio device life checker [%4.4s]", (char *)&err);
1070 vlc_mutex_unlock(&p_sys->var_lock);
1072 p_sys->i_bytes_per_sample = 0;
1073 p_sys->b_digital = false;
1075 /* clean-up circular buffer */
1076 TPCircularBufferCleanup(&p_sys->circular_buffer);
1080 #pragma mark core interaction
1082 static void ReportDevice(audio_output_t *p_aout, UInt32 i_id, char *name)
1085 sprintf(deviceid, "%i", i_id);
1087 aout_HotplugReport(p_aout, deviceid, name);
1090 static void RebuildDeviceList(audio_output_t * p_aout)
1092 OSStatus err = noErr;
1093 UInt32 propertySize = 0;
1094 AudioObjectID *deviceIDs;
1095 UInt32 numberOfDevices;
1096 CFMutableArrayRef currentListOfDevices;
1098 struct aout_sys_t *p_sys = p_aout->sys;
1100 ReportDevice(p_aout, 0, _("System Sound Output Device"));
1102 /* setup local array */
1103 currentListOfDevices = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
1105 /* Get number of devices */
1106 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1107 err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &propertySize);
1109 msg_Err(p_aout, "Could not get number of devices: [%4.4s]", (char *)&err);
1113 numberOfDevices = propertySize / sizeof(AudioDeviceID);
1115 if (numberOfDevices < 1) {
1116 msg_Err(p_aout, "No audio output devices found.");
1119 msg_Dbg(p_aout, "found %i audio device(s)", numberOfDevices);
1121 /* Allocate DeviceID array */
1122 deviceIDs = (AudioDeviceID *)calloc(numberOfDevices, sizeof(AudioDeviceID));
1123 if (deviceIDs == NULL)
1126 /* Populate DeviceID array */
1127 err = AudioObjectGetPropertyData(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &propertySize, deviceIDs);
1129 msg_Err(p_aout, "could not get the device IDs [%4.4s]", (char *)&err);
1133 AudioObjectPropertyAddress deviceNameAddress = { kAudioObjectPropertyName, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1135 for (unsigned int i = 0; i < numberOfDevices; i++) {
1136 CFStringRef device_name_ref;
1139 bool b_digital = false;
1140 UInt32 i_id = deviceIDs[i];
1142 /* Retrieve the length of the device name */
1143 err = AudioObjectGetPropertyDataSize(deviceIDs[i], &deviceNameAddress, 0, NULL, &propertySize);
1145 msg_Dbg(p_aout, "failed to get name size for device %i", deviceIDs[i]);
1149 /* Retrieve the name of the device */
1150 err = AudioObjectGetPropertyData(deviceIDs[i], &deviceNameAddress, 0, NULL, &propertySize, &device_name_ref);
1152 msg_Dbg(p_aout, "failed to get name for device %i", deviceIDs[i]);
1155 length = CFStringGetLength(device_name_ref);
1157 psz_name = (char *)malloc(length);
1158 CFStringGetCString(device_name_ref, psz_name, length, kCFStringEncodingUTF8);
1160 msg_Dbg(p_aout, "DevID: %i DevName: %s", deviceIDs[i], psz_name);
1162 if (!AudioDeviceHasOutput(deviceIDs[i])) {
1163 msg_Dbg(p_aout, "this '%s' is INPUT only. skipping...", psz_name);
1168 ReportDevice(p_aout, i_id, psz_name);
1169 CFArrayAppendValue(currentListOfDevices, CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &i_id));
1171 if (AudioDeviceSupportsDigital(p_aout, deviceIDs[i])) {
1173 msg_Dbg(p_aout, "'%s' supports digital output", psz_name);
1174 char *psz_encoded_name = nil;
1175 asprintf(&psz_encoded_name, _("%s (Encoded Output)"), psz_name);
1176 i_id = i_id | AOUT_VAR_SPDIF_FLAG;
1177 ReportDevice(p_aout, i_id, psz_encoded_name);
1178 CFArrayAppendValue(currentListOfDevices, CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &i_id));
1179 free(psz_encoded_name);
1182 // TODO: only register once for each device
1183 ManageAudioStreamsCallback(p_aout, deviceIDs[i], true);
1185 CFRelease(device_name_ref);
1189 vlc_mutex_lock(&p_sys->var_lock);
1191 if (p_sys->device_list)
1192 count = CFArrayGetCount(p_sys->device_list);
1195 CFNumberRef cfn_device_id;
1196 int i_device_id = 0;
1197 for (CFIndex x = 0; x < count; x++) {
1198 if (!CFArrayContainsValue(currentListOfDevices, CFRangeMake(0, count), CFArrayGetValueAtIndex(p_sys->device_list, x))) {
1199 cfn_device_id = CFArrayGetValueAtIndex(p_sys->device_list, x);
1201 if (cfn_device_id) {
1202 CFNumberGetValue(cfn_device_id, kCFNumberSInt32Type, &i_device_id);
1203 ReportDevice(p_aout, i_device_id, NULL);
1208 CFRelease(p_sys->device_list);
1209 p_sys->device_list = CFArrayCreateCopy(kCFAllocatorDefault, currentListOfDevices);
1210 CFRelease(currentListOfDevices);
1211 vlc_mutex_unlock(&p_sys->var_lock);
1216 static int SwitchAudioDevice(audio_output_t *p_aout, const char *name)
1218 struct aout_sys_t *p_sys = p_aout->sys;
1221 p_sys->i_new_selected_dev = atoi(name);
1223 p_sys->i_new_selected_dev = 0;
1225 bool b_supports_digital = (p_sys->i_new_selected_dev & AOUT_VAR_SPDIF_FLAG);
1226 if (b_supports_digital)
1227 p_sys->b_selected_dev_is_digital = true;
1229 p_sys->b_selected_dev_is_digital = false;
1231 p_sys->i_new_selected_dev = p_sys->i_new_selected_dev & ~AOUT_VAR_SPDIF_FLAG;
1233 aout_DeviceReport(p_aout, name);
1234 aout_RestartRequest(p_aout, AOUT_RESTART_OUTPUT);
1239 static int VolumeSet(audio_output_t * p_aout, float volume)
1241 struct aout_sys_t *p_sys = p_aout->sys;
1244 if(p_sys->b_digital)
1245 return VLC_EGENERIC;
1247 p_sys->f_volume = volume;
1248 aout_VolumeReport(p_aout, volume);
1250 /* Set volume for output unit */
1251 ostatus = AudioUnitSetParameter(p_sys->au_unit,
1252 kHALOutputParam_Volume,
1253 kAudioUnitScope_Global,
1255 volume * volume * volume,
1258 if (var_InheritBool(p_aout, "volume-save"))
1259 config_PutInt(p_aout, "auhal-volume", lroundf(volume * AOUT_VOLUME_DEFAULT));
1264 static int MuteSet(audio_output_t * p_aout, bool mute)
1266 struct aout_sys_t *p_sys = p_aout->sys;
1269 if(p_sys->b_digital)
1270 return VLC_EGENERIC;
1272 p_sys->b_mute = mute;
1273 aout_MuteReport(p_aout, mute);
1277 volume = p_sys->f_volume;
1279 ostatus = AudioUnitSetParameter(p_sys->au_unit,
1280 kHALOutputParam_Volume,
1281 kAudioUnitScope_Global,
1283 volume * volume * volume,
1290 #pragma mark actual playback
1292 static void Play(audio_output_t * p_aout, block_t * p_block)
1294 struct aout_sys_t *p_sys = p_aout->sys;
1296 if (p_block->i_nb_samples > 0) {
1297 if (!p_sys->b_got_first_sample) {
1299 verify_noerr(AudioOutputUnitStart(p_sys->au_unit));
1300 p_sys->b_got_first_sample = true;
1303 /* Do the channel reordering */
1304 if (p_sys->chans_to_reorder && !p_sys->b_digital) {
1305 aout_ChannelReorder(p_block->p_buffer,
1307 p_sys->chans_to_reorder,
1312 /* move data to buffer */
1313 if (unlikely(!TPCircularBufferProduceBytes(&p_sys->circular_buffer, p_block->p_buffer, p_block->i_buffer)))
1314 msg_Warn(p_aout, "dropped buffer");
1316 if (!p_sys->i_bytes_per_sample)
1317 p_sys->i_bytes_per_sample = p_block->i_buffer / p_block->i_nb_samples;
1320 block_Release(p_block);
1323 static void Pause(audio_output_t *p_aout, bool pause, mtime_t date)
1325 struct aout_sys_t * p_sys = p_aout->sys;
1328 if (p_aout->sys->b_digital) {
1330 AudioDeviceStop(p_sys->i_selected_dev, p_sys->i_procID);
1332 AudioDeviceStart(p_sys->i_selected_dev, p_sys->i_procID);
1335 AudioOutputUnitStop(p_sys->au_unit);
1337 AudioOutputUnitStart(p_sys->au_unit);
1341 static void Flush(audio_output_t *p_aout, bool wait)
1343 struct aout_sys_t *p_sys = p_aout->sys;
1346 int32_t availableBytes;
1347 vlc_mutex_lock(&p_sys->lock);
1348 TPCircularBufferTail(&p_sys->circular_buffer, &availableBytes);
1349 while (availableBytes > 0) {
1350 vlc_cond_wait(&p_sys->cond, &p_sys->lock);
1351 TPCircularBufferTail(&p_sys->circular_buffer, &availableBytes);
1353 vlc_mutex_unlock(&p_sys->lock);
1356 p_sys->b_got_first_sample = false;
1358 /* flush circular buffer */
1359 AudioOutputUnitStop(p_aout->sys->au_unit);
1360 TPCircularBufferClear(&p_aout->sys->circular_buffer);
1364 static int TimeGet(audio_output_t *p_aout, mtime_t *delay)
1366 struct aout_sys_t * p_sys = p_aout->sys;
1368 if (!p_sys->i_bytes_per_sample)
1371 int32_t availableBytes;
1372 TPCircularBufferTail(&p_sys->circular_buffer, &availableBytes);
1374 *delay = (availableBytes / p_sys->i_bytes_per_sample) * CLOCK_FREQ / p_sys->i_rate;
1379 /*****************************************************************************
1380 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1381 * us to provide some more audio data.
1382 * Don't print anything during normal playback, calling blocking function from
1383 * this callback is not allowed.
1384 *****************************************************************************/
1385 static OSStatus RenderCallbackAnalog(vlc_object_t *p_obj,
1386 AudioUnitRenderActionFlags *ioActionFlags,
1387 const AudioTimeStamp *inTimeStamp,
1389 UInt32 inNumberFrames,
1390 AudioBufferList *ioData) {
1391 VLC_UNUSED(ioActionFlags);
1392 VLC_UNUSED(inTimeStamp);
1393 VLC_UNUSED(inBusNumber);
1394 VLC_UNUSED(inNumberFrames);
1396 audio_output_t * p_aout = (audio_output_t *)p_obj;
1397 struct aout_sys_t * p_sys = p_aout->sys;
1399 int bytesRequested = ioData->mBuffers[0].mDataByteSize;
1400 Float32 *targetBuffer = (Float32*)ioData->mBuffers[0].mData;
1402 vlc_mutex_lock(&p_sys->lock);
1403 /* Pull audio from buffer */
1404 int32_t availableBytes;
1405 Float32 *buffer = TPCircularBufferTail(&p_sys->circular_buffer, &availableBytes);
1407 /* check if we have enough data */
1408 if (!availableBytes) {
1409 /* return an empty buffer so silence is played until we have data */
1410 memset(targetBuffer, 0, ioData->mBuffers[0].mDataByteSize);
1412 int32_t bytesToCopy = __MIN(bytesRequested, availableBytes);
1414 memcpy(targetBuffer, buffer, bytesToCopy);
1415 TPCircularBufferConsume(&p_sys->circular_buffer, bytesToCopy);
1416 ioData->mBuffers[0].mDataByteSize = bytesToCopy;
1419 vlc_cond_signal(&p_sys->cond);
1420 vlc_mutex_unlock(&p_sys->lock);
1426 * RenderCallbackSPDIF: callback for SPDIF audio output
1428 static OSStatus RenderCallbackSPDIF(AudioDeviceID inDevice,
1429 const AudioTimeStamp * inNow,
1430 const void * inInputData,
1431 const AudioTimeStamp * inInputTime,
1432 AudioBufferList * outOutputData,
1433 const AudioTimeStamp * inOutputTime,
1434 void * threadGlobals)
1437 VLC_UNUSED(inDevice);
1438 VLC_UNUSED(inInputData);
1439 VLC_UNUSED(inInputTime);
1440 VLC_UNUSED(inOutputTime);
1442 audio_output_t * p_aout = (audio_output_t *)threadGlobals;
1443 struct aout_sys_t * p_sys = p_aout->sys;
1445 int bytesRequested = outOutputData->mBuffers[p_sys->i_stream_index].mDataByteSize;
1446 char *targetBuffer = outOutputData->mBuffers[p_sys->i_stream_index].mData;
1448 vlc_mutex_lock(&p_sys->lock);
1449 /* Pull audio from buffer */
1450 int32_t availableBytes;
1451 char *buffer = TPCircularBufferTail(&p_sys->circular_buffer, &availableBytes);
1453 /* check if we have enough data */
1454 if (!availableBytes) {
1455 /* return an empty buffer so silence is played until we have data */
1456 memset(targetBuffer, 0, outOutputData->mBuffers[p_sys->i_stream_index].mDataByteSize);
1458 int32_t bytesToCopy = __MIN(bytesRequested, availableBytes);
1460 memcpy(targetBuffer, buffer, bytesToCopy);
1461 TPCircularBufferConsume(&p_sys->circular_buffer, bytesToCopy);
1462 outOutputData->mBuffers[p_sys->i_stream_index].mDataByteSize = bytesToCopy;
1465 vlc_cond_signal(&p_sys->cond);
1466 vlc_mutex_unlock(&p_sys->lock);
1472 #pragma mark Stream / Hardware Listeners
1475 * Callback when device list changed
1477 static OSStatus DevicesListener(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1479 VLC_UNUSED(inObjectID);
1480 VLC_UNUSED(inNumberAddresses);
1481 VLC_UNUSED(inAddresses);
1483 audio_output_t *p_aout = (audio_output_t *)inClientData;
1486 aout_sys_t *p_sys = p_aout->sys;
1488 msg_Dbg(p_aout, "audio device configuration changed, resetting cache");
1489 RebuildDeviceList(p_aout);
1491 vlc_mutex_lock(&p_sys->var_lock);
1492 if(!CFArrayContainsValue(p_sys->device_list, CFRangeMake(0, CFArrayGetCount(p_sys->device_list)),CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &p_sys->i_selected_dev)))
1493 aout_RestartRequest(p_aout, AOUT_RESTART_OUTPUT);
1494 vlc_mutex_unlock(&p_sys->var_lock);
1500 * Callback when current device is not alive anymore
1502 static OSStatus DeviceAliveListener(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1504 VLC_UNUSED(inObjectID);
1505 VLC_UNUSED(inNumberAddresses);
1506 VLC_UNUSED(inAddresses);
1508 audio_output_t *p_aout = (audio_output_t *)inClientData;
1512 msg_Warn(p_aout, "audio device died, resetting aout");
1513 aout_RestartRequest(p_aout, AOUT_RESTART_OUTPUT);
1519 * Callback when streams of any audio device changed (e.g. SPDIF gets (un)available)
1521 static OSStatus StreamsChangedListener(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1523 OSStatus err = noErr;
1524 UInt32 i_param_size = 0;
1525 AudioStreamID *p_streams = NULL;
1528 VLC_UNUSED(inNumberAddresses);
1529 VLC_UNUSED(inAddresses);
1531 audio_output_t *p_aout = (audio_output_t *)inClientData;
1535 aout_sys_t *p_sys = p_aout->sys;
1537 msg_Dbg(p_aout, "available physical formats for audio device changed");
1538 RebuildDeviceList(p_aout);
1541 * check if changed stream id belongs to current device
1543 vlc_mutex_lock(&p_sys->var_lock);
1544 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1545 err = AudioObjectGetPropertyDataSize(p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size);
1547 msg_Err(p_aout, "could not get number of streams [%4.4s]", (char *)&err);
1548 return VLC_EGENERIC;
1551 i_streams = i_param_size / sizeof(AudioStreamID);
1552 p_streams = (AudioStreamID *)malloc(i_param_size);
1553 if (p_streams == NULL)
1556 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams);
1558 msg_Err(p_aout, "could not get list of streams [%4.4s]", (char *)&err);
1559 return VLC_EGENERIC;
1561 vlc_mutex_unlock(&p_sys->var_lock);
1563 for (int i = 0; i < i_streams; i++) {
1564 if (p_streams[i] == inObjectID) {
1565 msg_Dbg(p_aout, "Restart aout as this affects current device");
1566 aout_RestartRequest(p_aout, AOUT_RESTART_OUTPUT);
1576 * StreamListener: check whether the device's physical format changes on-the-fly (unlikely)
1578 static OSStatus StreamListener(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1580 OSStatus err = noErr;
1581 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1583 VLC_UNUSED(inObjectID);
1585 for (unsigned int i = 0; i < inNumberAddresses; i++) {
1586 if (inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat) {
1587 vlc_mutex_lock(&w->lock);
1588 vlc_cond_signal(&w->cond);
1589 vlc_mutex_unlock(&w->lock);
1597 #pragma mark helpers
1599 static int ManageAudioStreamsCallback(audio_output_t *p_aout, AudioDeviceID i_dev_id, bool b_register)
1601 OSStatus err = noErr;
1602 UInt32 i_param_size = 0;
1603 AudioStreamID *p_streams = NULL;
1606 /* Retrieve all the output streams */
1607 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1608 err = AudioObjectGetPropertyDataSize(i_dev_id, &streamsAddress, 0, NULL, &i_param_size);
1610 msg_Err(p_aout, "could not get number of streams for device id %i [%4.4s]", i_dev_id, (char *)&err);
1611 return VLC_EGENERIC;
1614 i_streams = i_param_size / sizeof(AudioStreamID);
1615 p_streams = (AudioStreamID *)malloc(i_param_size);
1616 if (p_streams == NULL)
1619 err = AudioObjectGetPropertyData(i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams);
1621 msg_Err(p_aout, "could not get list of streams [%4.4s]", (char *)&err);
1622 return VLC_EGENERIC;
1625 for (int i = 0; i < i_streams; i++) {
1626 /* get notified when physical formats change */
1627 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1630 err = AudioObjectAddPropertyListener(p_streams[i], &physicalFormatsAddress, StreamsChangedListener, (void *)p_aout);
1632 // nope just means that we already have a callback
1633 if (err == kAudioHardwareIllegalOperationError) {
1634 msg_Warn(p_aout, "could not set audio stream formats property callback on stream id %i, callback already set? [%4.4s]", p_streams[i],
1637 msg_Err(p_aout, "could not set audio stream formats property callback on stream id %i [%4.4s]", p_streams[i],
1642 } else { /* unregister callback */
1643 err = AudioObjectRemovePropertyListener(p_streams[i], &physicalFormatsAddress, StreamsChangedListener, (void *)p_aout);
1645 msg_Err(p_aout, "failed to remove audio device property streams callback [%4.4s]", (char *)&err);
1655 * AudioDeviceHasOutput: Checks if the device is actually an output device
1657 static int AudioDeviceHasOutput(AudioDeviceID i_dev_id)
1659 UInt32 dataSize = 0;
1662 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1663 status = AudioObjectGetPropertyDataSize(i_dev_id, &streamsAddress, 0, NULL, &dataSize);
1665 if (dataSize == 0 || status != noErr)
1672 * AudioDeviceSupportsDigital: Checks if device supports raw bitstreams
1674 static int AudioDeviceSupportsDigital(audio_output_t *p_aout, AudioDeviceID i_dev_id)
1676 OSStatus err = noErr;
1677 UInt32 i_param_size = 0;
1678 AudioStreamID *p_streams = NULL;
1680 bool b_return = false;
1682 /* Retrieve all the output streams */
1683 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1684 err = AudioObjectGetPropertyDataSize(i_dev_id, &streamsAddress, 0, NULL, &i_param_size);
1686 msg_Err(p_aout, "could not get number of streams [%4.4s] (%i)", (char *)&err, (int32_t)err);
1690 i_streams = i_param_size / sizeof(AudioStreamID);
1691 p_streams = (AudioStreamID *)malloc(i_param_size);
1692 if (p_streams == NULL)
1695 err = AudioObjectGetPropertyData(i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams);
1697 msg_Err(p_aout, "could not get list of streams [%4.4s]", (char *)&err);
1701 for (int i = 0; i < i_streams; i++) {
1702 if (AudioStreamSupportsDigital(p_aout, p_streams[i]))
1711 * AudioStreamSupportsDigital: Checks if audio stream is compatible with raw bitstreams
1713 static int AudioStreamSupportsDigital(audio_output_t *p_aout, AudioStreamID i_stream_id)
1715 OSStatus err = noErr;
1716 UInt32 i_param_size = 0;
1717 AudioStreamRangedDescription *p_format_list = NULL;
1719 bool b_return = false;
1721 /* Retrieve all the stream formats supported by each output stream */
1722 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1723 err = AudioObjectGetPropertyDataSize(i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size);
1725 msg_Err(p_aout, "could not get number of streamformats [%4.4s] (%i)", (char *)&err, (int32_t)err);
1729 i_formats = i_param_size / sizeof(AudioStreamRangedDescription);
1730 msg_Dbg(p_aout, "found %i stream formats for stream id %i", i_formats, i_stream_id);
1732 p_format_list = (AudioStreamRangedDescription *)malloc(i_param_size);
1733 if (p_format_list == NULL)
1736 err = AudioObjectGetPropertyData(i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list);
1738 msg_Err(p_aout, "could not get the list of streamformats [%4.4s]", (char *)&err);
1739 free(p_format_list);
1740 p_format_list = NULL;
1744 for (int i = 0; i < i_formats; i++) {
1746 msg_Dbg(p_aout, STREAM_FORMAT_MSG("supported format: ", p_format_list[i].mFormat));
1749 if (p_format_list[i].mFormat.mFormatID == 'IAC3' ||
1750 p_format_list[i].mFormat.mFormatID == 'iac3' ||
1751 p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 ||
1752 p_format_list[i].mFormat.mFormatID == kAudioFormatAC3)
1756 free(p_format_list);
1761 * AudioStreamChangeFormat: switch stream format based on the provided description
1763 static int AudioStreamChangeFormat(audio_output_t *p_aout, AudioStreamID i_stream_id, AudioStreamBasicDescription change_format)
1765 OSStatus err = noErr;
1766 UInt32 i_param_size = 0;
1768 AudioObjectPropertyAddress physicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1770 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
1772 msg_Dbg(p_aout, STREAM_FORMAT_MSG("setting stream format: ", change_format));
1774 /* Condition because SetProperty is asynchronious */
1775 vlc_cond_init(&w.cond);
1776 vlc_mutex_init(&w.lock);
1777 vlc_mutex_lock(&w.lock);
1779 /* Install the callback */
1780 err = AudioObjectAddPropertyListener(i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w);
1782 msg_Err(p_aout, "AudioObjectAddPropertyListener for kAudioStreamPropertyPhysicalFormat failed [%4.4s]", (char *)&err);
1786 /* change the format */
1787 err = AudioObjectSetPropertyData(i_stream_id, &physicalFormatAddress, 0, NULL, sizeof(AudioStreamBasicDescription),
1790 msg_Err(p_aout, "could not set the stream format [%4.4s]", (char *)&err);
1794 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
1795 * it is also not atomic in its behaviour.
1796 * Therefore we check 5 times before we really give up.
1797 * FIXME: failing isn't actually implemented yet. */
1798 for (int i = 0; i < 5; i++) {
1799 AudioStreamBasicDescription actual_format;
1800 mtime_t timeout = mdate() + 500000;
1802 if (vlc_cond_timedwait(&w.cond, &w.lock, timeout))
1803 msg_Dbg(p_aout, "reached timeout");
1805 i_param_size = sizeof(AudioStreamBasicDescription);
1806 err = AudioObjectGetPropertyData(i_stream_id, &physicalFormatAddress, 0, NULL, &i_param_size, &actual_format);
1808 msg_Dbg(p_aout, STREAM_FORMAT_MSG("actual format in use: ", actual_format));
1809 if (actual_format.mSampleRate == change_format.mSampleRate &&
1810 actual_format.mFormatID == change_format.mFormatID &&
1811 actual_format.mFramesPerPacket == change_format.mFramesPerPacket) {
1812 /* The right format is now active */
1815 /* We need to check again */
1818 /* Removing the property listener */
1819 err = AudioObjectRemovePropertyListener(i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w);
1821 msg_Err(p_aout, "AudioStreamRemovePropertyListener failed [%4.4s]", (char *)&err);
1825 /* Destroy the lock and condition */
1826 vlc_mutex_unlock(&w.lock);
1827 vlc_mutex_destroy(&w.lock);
1828 vlc_cond_destroy(&w.cond);