1 /*****************************************************************************
2 * auhal.c: AUHAL and Coreaudio output plugin
3 *****************************************************************************
4 * Copyright (C) 2005, 2012 the VideoLAN team
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
8 * Felix Paul Kühne <fkuehne at videolan dot org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #import <vlc_common.h>
34 #import <vlc_plugin.h>
35 #import <vlc_dialog.h> // dialog_Fatal
36 #import <vlc_aout.h> // aout_*
37 #import <vlc_aout_intf.h>
39 #import <AudioUnit/AudioUnit.h> // AudioUnit
40 #import <CoreAudio/CoreAudio.h> // AudioDeviceID
41 #import <AudioToolbox/AudioFormat.h> // AudioFormatGetProperty
42 #import <CoreServices/CoreServices.h>
45 # define verify_noerr(a) assert((a) == noErr)
48 #define STREAM_FORMAT_MSG(pre, sfm) \
49 pre "[%f][%4.4s][%u][%u][%u][%u][%u][%u]", \
50 sfm.mSampleRate, (char *)&sfm.mFormatID, \
51 (unsigned int)sfm.mFormatFlags, (unsigned int)sfm.mBytesPerPacket, \
52 (unsigned int)sfm.mFramesPerPacket, (unsigned int)sfm.mBytesPerFrame, \
53 (unsigned int)sfm.mChannelsPerFrame, (unsigned int)sfm.mBitsPerChannel
55 #define FRAMESIZE 2048
56 #define BUFSIZE (FRAMESIZE * 8) * 8
57 #define AOUT_VAR_SPDIF_FLAG 0xf00000
61 * - clean up the debug info
62 * - be better at changing stream setup or devices setup changes while playing.
66 /*****************************************************************************
67 * aout_sys_t: private audio output method descriptor
68 *****************************************************************************
69 * This structure is part of the audio output thread descriptor.
70 * It describes the CoreAudio specific properties of an output thread.
71 *****************************************************************************/
75 AudioDeviceID i_default_dev; /* DeviceID of defaultOutputDevice */
76 AudioDeviceID i_selected_dev; /* DeviceID of the selected device */
77 AudioDeviceIOProcID i_procID; /* DeviceID of current device */
78 UInt32 i_devices; /* Number of CoreAudio Devices */
79 bool b_digital; /* Are we running in digital mode? */
80 mtime_t clock_diff; /* Difference between VLC clock and Device clock */
83 Component au_component; /* The Audiocomponent we use */
84 AudioUnit au_unit; /* The AudioUnit we use */
85 uint8_t p_remainder_buffer[BUFSIZE];
86 uint32_t i_read_bytes;
87 uint32_t i_total_bytes;
89 /* CoreAudio SPDIF mode specific */
90 pid_t i_hog_pid; /* The keep the pid of our hog status */
91 AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
92 int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
93 AudioStreamBasicDescription stream_format; /* The format we changed the stream to */
94 AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
95 bool b_revert; /* Wether we need to revert the stream format */
96 bool b_changed_mixing; /* Wether we need to set the mixing mode back */
99 /*****************************************************************************
101 *****************************************************************************/
102 static int Open (vlc_object_t *);
103 static int OpenAnalog (audio_output_t *);
104 static int OpenSPDIF (audio_output_t *);
105 static void Close (vlc_object_t *);
107 static void Probe (audio_output_t *);
109 static int AudioDeviceHasOutput (AudioDeviceID);
110 static int AudioDeviceSupportsDigital(audio_output_t *, AudioDeviceID);
111 static int AudioStreamSupportsDigital(audio_output_t *, AudioStreamID);
112 static int AudioStreamChangeFormat (audio_output_t *, AudioStreamID, AudioStreamBasicDescription);
114 static OSStatus RenderCallbackAnalog (vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
115 unsigned int, unsigned int, AudioBufferList *);
116 static OSStatus RenderCallbackSPDIF (AudioDeviceID, const AudioTimeStamp *, const void *, const AudioTimeStamp *,
117 AudioBufferList *, const AudioTimeStamp *, void *);
118 static OSStatus HardwareListener (AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *);
119 static OSStatus StreamListener (AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *);
120 static int AudioDeviceCallback (vlc_object_t *, const char *,
121 vlc_value_t, vlc_value_t, void *);
123 static int VolumeSet (audio_output_t *, float);
124 static int MuteSet (audio_output_t *, bool);
127 /*****************************************************************************
129 *****************************************************************************/
130 #define ADEV_TEXT N_("Audio Device")
131 #define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
132 "audio device, as listed in your 'Audio Device' menu. This device will " \
133 "then be used by default for audio playback.")
136 set_shortname("auhal")
137 set_description(N_("HAL AudioUnit output"))
138 set_capability("audio output", 101)
139 set_category(CAT_AUDIO)
140 set_subcategory(SUBCAT_AUDIO_AOUT)
141 set_callbacks(Open, Close)
142 add_integer("macosx-audio-device", 0, ADEV_TEXT, ADEV_LONGTEXT, false)
145 /*****************************************************************************
146 * Open: open macosx audio output
147 *****************************************************************************/
148 static int Start(audio_output_t *p_aout, audio_sample_format_t *restrict fmt)
150 OSStatus err = noErr;
151 UInt32 i_param_size = 0;
152 struct aout_sys_t *p_sys = NULL;
155 /* Use int here, to match kAudioDevicePropertyDeviceIsAlive
160 p_sys->i_default_dev = 0;
161 p_sys->i_selected_dev = 0;
162 p_sys->i_devices = 0;
163 p_sys->b_digital = false;
164 p_sys->au_component = NULL;
165 p_sys->au_unit = NULL;
166 p_sys->clock_diff = (mtime_t) 0;
167 p_sys->i_read_bytes = 0;
168 p_sys->i_total_bytes = 0;
169 p_sys->i_hog_pid = -1;
170 p_sys->i_stream_id = 0;
171 p_sys->i_stream_index = -1;
172 p_sys->b_revert = false;
173 p_sys->b_changed_mixing = false;
174 memset(p_sys->p_remainder_buffer, 0, sizeof(uint8_t) * BUFSIZE);
176 p_aout->play = aout_PacketPlay;
177 p_aout->pause = aout_PacketPause;
178 p_aout->flush = aout_PacketFlush;
180 aout_FormatPrint(p_aout, "VLC is looking for:", fmt);
182 /* Persistent device variable */
183 if (var_Type(p_aout->p_libvlc, "macosx-audio-device") == 0)
184 var_Create(p_aout->p_libvlc, "macosx-audio-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
186 /* Build a list of devices */
187 if (var_Type(p_aout, "audio-device") == 0)
190 /* What device do we want? */
191 if (var_Get(p_aout, "audio-device", &val) < 0) {
192 msg_Err(p_aout, "audio-device var does not exist. device probe failed.");
196 p_sys->i_selected_dev = val.i_int & ~AOUT_VAR_SPDIF_FLAG; /* remove SPDIF flag to get the true DeviceID */
197 bool b_supports_digital = (val.i_int & AOUT_VAR_SPDIF_FLAG);
198 if (b_supports_digital)
199 msg_Dbg(p_aout, "audio device supports digital output");
201 /* Check if the desired device is alive and usable */
202 i_param_size = sizeof(b_alive);
203 AudioObjectPropertyAddress audioDeviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive,
204 kAudioObjectPropertyScopeGlobal,
205 kAudioObjectPropertyElementMaster };
206 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceAliveAddress, 0, NULL, &i_param_size, &b_alive);
209 /* Be tolerant, only give a warning here */
210 msg_Warn(p_aout, "could not check whether device [0x%x] is alive: %4.4s",
211 (unsigned int)p_sys->i_selected_dev, (char *)&err);
216 msg_Warn(p_aout, "selected audio device is not alive, switching to default device");
217 p_sys->i_selected_dev = p_sys->i_default_dev;
220 /* add a callback to see if the device dies later on */
221 err = AudioObjectAddPropertyListener(p_sys->i_selected_dev, &audioDeviceAliveAddress, HardwareListener, (void *)p_aout);
223 /* Be tolerant, only give a warning here */
224 msg_Warn(p_aout, "could not set alive check callback on device [0x%x]: %4.4s",
225 (unsigned int)p_sys->i_selected_dev, (char *)&err);
228 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
229 kAudioDevicePropertyScopeOutput,
230 kAudioObjectPropertyElementMaster };
231 i_param_size = sizeof(p_sys->i_hog_pid);
232 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, &i_param_size, &p_sys->i_hog_pid);
234 /* This is not a fatal error. Some drivers simply don't support this property */
235 msg_Warn(p_aout, "could not check whether device is hogged: %4.4s",
237 p_sys->i_hog_pid = -1;
240 if (p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid()) {
241 msg_Err(p_aout, "Selected audio device is exclusively in use by another program.");
242 dialog_Fatal(p_aout, _("Audio output failed"), "%s",
243 _("The selected audio output device is exclusively in "
244 "use by another program."));
248 /* If we change the device we want to use, we should renegotiate the audio chain */
249 var_AddCallback(p_aout, "audio-device", AudioDeviceCallback, NULL);
251 /* Check for Digital mode or Analog output mode */
252 if (AOUT_FMT_SPDIF (fmt) && b_supports_digital) {
253 if (OpenSPDIF (p_aout)) {
254 msg_Dbg(p_aout, "digital output successfully opened");
258 if (OpenAnalog(p_aout)) {
259 msg_Dbg(p_aout, "analog output successfully opened");
265 /* If we reach this, this aout has failed */
266 msg_Err(p_aout, "opening the auhal output failed");
267 var_Destroy(p_aout, "audio-device");
271 /*****************************************************************************
272 * Open: open and setup a HAL AudioUnit to do analog (multichannel) audio output
273 *****************************************************************************/
274 static int OpenAnalog(audio_output_t *p_aout, audio_sample_format_t *fmt)
276 struct aout_sys_t *p_sys = p_aout->sys;
277 OSStatus err = noErr;
278 UInt32 i_param_size = 0;
280 ComponentDescription desc;
281 AudioStreamBasicDescription DeviceFormat;
282 AudioChannelLayout *layout;
283 AudioChannelLayout new_layout;
284 AURenderCallbackStruct input;
286 /* Lets go find our Component */
287 desc.componentType = kAudioUnitType_Output;
288 desc.componentSubType = kAudioUnitSubType_HALOutput;
289 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
290 desc.componentFlags = 0;
291 desc.componentFlagsMask = 0;
293 p_sys->au_component = FindNextComponent(NULL, &desc);
294 if (p_sys->au_component == NULL) {
295 msg_Warn(p_aout, "we cannot find our HAL component");
299 err = OpenAComponent(p_sys->au_component, &p_sys->au_unit);
301 msg_Warn(p_aout, "we cannot open our HAL component");
305 /* Set the device we will use for this output unit */
306 err = AudioUnitSetProperty(p_sys->au_unit,
307 kAudioOutputUnitProperty_CurrentDevice,
308 kAudioUnitScope_Global,
310 &p_sys->i_selected_dev,
311 sizeof(AudioDeviceID));
314 msg_Warn(p_aout, "we cannot select the audio device");
318 /* Get the current format */
319 i_param_size = sizeof(AudioStreamBasicDescription);
321 err = AudioUnitGetProperty(p_sys->au_unit,
322 kAudioUnitProperty_StreamFormat,
323 kAudioUnitScope_Input,
331 msg_Dbg(p_aout, STREAM_FORMAT_MSG("current format is: ", DeviceFormat));
333 /* Get the channel layout of the device side of the unit (vlc -> unit -> device) */
334 err = AudioUnitGetPropertyInfo(p_sys->au_unit,
335 kAudioDevicePropertyPreferredChannelLayout,
336 kAudioUnitScope_Output,
342 layout = (AudioChannelLayout *)malloc(i_param_size);
344 verify_noerr(AudioUnitGetProperty(p_sys->au_unit,
345 kAudioDevicePropertyPreferredChannelLayout,
346 kAudioUnitScope_Output,
351 /* We need to "fill out" the ChannelLayout, because there are multiple ways that it can be set */
352 if (layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap) {
353 /* bitmap defined channellayout */
354 verify_noerr(AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForBitmap,
355 sizeof(UInt32), &layout->mChannelBitmap,
358 } else if (layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions)
360 /* layouttags defined channellayout */
361 verify_noerr(AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForTag,
362 sizeof(AudioChannelLayoutTag), &layout->mChannelLayoutTag,
367 msg_Dbg(p_aout, "layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions);
369 /* Initialize the VLC core channel count */
370 fmt->i_physical_channels = 0;
371 i_original = fmt->i_original_channels & AOUT_CHAN_PHYSMASK;
373 if (i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2) {
374 /* We only need Mono or cannot output more than 1 channel */
375 fmt->i_physical_channels = AOUT_CHAN_CENTER;
376 } else if (i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3) {
377 /* We only need Stereo or cannot output more than 2 channels */
378 fmt->i_physical_channels = AOUT_CHANS_STEREO;
380 /* We want more than stereo and we can do that */
381 for (unsigned int i = 0; i < layout->mNumberChannelDescriptions; i++) {
382 msg_Dbg(p_aout, "this is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel);
384 switch(layout->mChannelDescriptions[i].mChannelLabel) {
385 case kAudioChannelLabel_Left:
386 fmt->i_physical_channels |= AOUT_CHAN_LEFT;
388 case kAudioChannelLabel_Right:
389 fmt->i_physical_channels |= AOUT_CHAN_RIGHT;
391 case kAudioChannelLabel_Center:
392 fmt->i_physical_channels |= AOUT_CHAN_CENTER;
394 case kAudioChannelLabel_LFEScreen:
395 fmt->i_physical_channels |= AOUT_CHAN_LFE;
397 case kAudioChannelLabel_LeftSurround:
398 fmt->i_physical_channels |= AOUT_CHAN_REARLEFT;
400 case kAudioChannelLabel_RightSurround:
401 fmt->i_physical_channels |= AOUT_CHAN_REARRIGHT;
403 case kAudioChannelLabel_RearSurroundLeft:
404 fmt->i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
406 case kAudioChannelLabel_RearSurroundRight:
407 fmt->i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
409 case kAudioChannelLabel_CenterSurround:
410 fmt->i_physical_channels |= AOUT_CHAN_REARCENTER;
413 msg_Warn(p_aout, "unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel);
416 if (fmt->i_physical_channels == 0) {
417 fmt->i_physical_channels = AOUT_CHANS_STEREO;
418 msg_Err(p_aout, "You should configure your speaker layout with Audio Midi Setup Utility in /Applications/Utilities. Now using Stereo mode.");
419 dialog_Fatal(p_aout, _("Audio device is not configured"), "%s",
420 _("You should configure your speaker layout with "
421 "the \"Audio Midi Setup\" utility in /Applications/"
422 "Utilities. Stereo mode is being used now."));
427 msg_Warn(p_aout, "this driver does not support kAudioDevicePropertyPreferredChannelLayout. BAD DRIVER AUTHOR !!!");
428 fmt->i_physical_channels = AOUT_CHANS_STEREO;
431 msg_Dbg(p_aout, "selected %d physical channels for device output", aout_FormatNbChannels(fmt));
432 msg_Dbg(p_aout, "VLC will output: %s", aout_FormatPrintChannels(fmt));
434 memset (&new_layout, 0, sizeof(new_layout));
435 switch(aout_FormatNbChannels(fmt)) {
437 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
440 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
443 if (fmt->i_physical_channels & AOUT_CHAN_CENTER)
444 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
445 else if (fmt->i_physical_channels & AOUT_CHAN_LFE)
446 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
449 if (fmt->i_physical_channels & (AOUT_CHAN_CENTER | AOUT_CHAN_LFE))
450 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
451 else if (fmt->i_physical_channels & (AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT))
452 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
453 else if (fmt->i_physical_channels & (AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER))
454 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
457 if (fmt->i_physical_channels & (AOUT_CHAN_CENTER))
458 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
459 else if (fmt->i_physical_channels & (AOUT_CHAN_LFE))
460 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
463 if (fmt->i_physical_channels & (AOUT_CHAN_LFE))
464 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
466 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_AudioUnit_6_0; // L R Ls Rs C Cs
469 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
470 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
473 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
474 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
478 /* Set up the format to be used */
479 DeviceFormat.mSampleRate = fmt->i_rate;
480 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
482 /* We use float 32. It's the best supported format by both VLC and Coreaudio */
483 fmt->i_format = VLC_CODEC_FL32;
484 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
485 DeviceFormat.mBitsPerChannel = 32;
486 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels(fmt);
488 /* Calculate framesizes and stuff */
489 DeviceFormat.mFramesPerPacket = 1;
490 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
491 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
493 /* Set the desired format */
494 i_param_size = sizeof(AudioStreamBasicDescription);
495 verify_noerr(AudioUnitSetProperty(p_sys->au_unit,
496 kAudioUnitProperty_StreamFormat,
497 kAudioUnitScope_Input,
502 msg_Dbg(p_aout, STREAM_FORMAT_MSG("we set the AU format: " , DeviceFormat));
504 /* Retrieve actual format */
505 verify_noerr(AudioUnitGetProperty(p_sys->au_unit,
506 kAudioUnitProperty_StreamFormat,
507 kAudioUnitScope_Input,
512 msg_Dbg(p_aout, STREAM_FORMAT_MSG("the actual set AU format is " , DeviceFormat));
514 /* Do the last VLC aout setups */
515 aout_FormatPrepare(fmt);
516 aout_PacketInit(p_aout, &p_sys->packet, FRAMESIZE, fmt);
518 /* set the IOproc callback */
519 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
520 input.inputProcRefCon = p_aout;
522 verify_noerr(AudioUnitSetProperty(p_sys->au_unit,
523 kAudioUnitProperty_SetRenderCallback,
524 kAudioUnitScope_Input,
525 0, &input, sizeof(input)));
527 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
528 input.inputProcRefCon = p_aout;
530 /* Set the new_layout as the layout VLC will use to feed the AU unit */
531 verify_noerr(AudioUnitSetProperty(p_sys->au_unit,
532 kAudioUnitProperty_AudioChannelLayout,
533 kAudioUnitScope_Input,
534 0, &new_layout, sizeof(new_layout)));
536 if (new_layout.mNumberChannelDescriptions > 0)
537 free(new_layout.mChannelDescriptions);
540 verify_noerr(AudioUnitInitialize(p_sys->au_unit));
542 /* Find the difference between device clock and mdate clock */
543 p_sys->clock_diff = - (mtime_t)
544 AudioConvertHostTimeToNanos(AudioGetCurrentHostTime()) / 1000;
545 p_sys->clock_diff += mdate();
548 verify_noerr(AudioOutputUnitStart(p_sys->au_unit));
553 /*****************************************************************************
554 * Setup a encoded digital stream (SPDIF)
555 *****************************************************************************/
556 static int OpenSPDIF (audio_output_t * p_aout, audio_sample_format_t *fmt)
558 struct aout_sys_t *p_sys = p_aout->sys;
559 OSStatus err = noErr;
560 UInt32 i_param_size = 0, b_mix = 0;
561 Boolean b_writeable = false;
562 AudioStreamID *p_streams = NULL;
563 unsigned i_streams = 0;
565 /* Start doing the SPDIF setup proces */
566 p_sys->b_digital = true;
569 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
570 i_param_size = sizeof(p_sys->i_hog_pid);
571 p_sys->i_hog_pid = getpid() ;
573 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid);
576 msg_Err(p_aout, "failed to set hogmode: [%4.4s]", (char *)&err);
580 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
582 if (AudioObjectHasProperty(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress)) {
583 /* Set mixable to false if we are allowed to */
584 err = AudioObjectIsPropertySettable(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable);
585 err = AudioObjectGetPropertyDataSize(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size);
586 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix);
588 if (err == noErr && b_writeable) {
590 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix);
591 p_sys->b_changed_mixing = true;
595 msg_Err(p_aout, "failed to set mixmode: [%4.4s]", (char *)&err);
600 /* Get a list of all the streams on this device */
601 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
602 err = AudioObjectGetPropertyDataSize(p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size);
604 msg_Err(p_aout, "could not get number of streams: [%4.4s]", (char *)&err);
608 i_streams = i_param_size / sizeof(AudioStreamID);
609 p_streams = (AudioStreamID *)malloc(i_param_size);
610 if (p_streams == NULL)
613 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams);
616 msg_Err(p_aout, "could not get number of streams: [%4.4s]", (char *)&err);
621 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
622 for (unsigned i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++) {
623 /* Find a stream with a cac3 stream */
624 AudioStreamRangedDescription *p_format_list = NULL;
626 bool b_digital = false;
628 /* Retrieve all the stream formats supported by each output stream */
629 err = AudioObjectGetPropertyDataSize(p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size);
631 msg_Err(p_aout, "OpenSPDIF: could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err);
635 i_formats = i_param_size / sizeof(AudioStreamRangedDescription);
636 p_format_list = (AudioStreamRangedDescription *)malloc(i_param_size);
637 if (p_format_list == NULL)
640 err = AudioObjectGetPropertyData(p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list);
642 msg_Err(p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err);
647 /* Check if one of the supported formats is a digital format */
648 for (int j = 0; j < i_formats; j++) {
649 if (p_format_list[j].mFormat.mFormatID == 'IAC3' ||
650 p_format_list[j].mFormat.mFormatID == 'iac3' ||
651 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
652 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3) {
659 /* if this stream supports a digital (cac3) format, then go set it. */
660 int i_requested_rate_format = -1;
661 int i_current_rate_format = -1;
662 int i_backup_rate_format = -1;
664 p_sys->i_stream_id = p_streams[i];
665 p_sys->i_stream_index = i;
667 if (!p_sys->b_revert) {
668 AudioObjectPropertyAddress currentPhysicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
669 /* Retrieve the original format of this stream first if not done so already */
670 i_param_size = sizeof(p_sys->sfmt_revert);
671 err = AudioObjectGetPropertyData(p_sys->i_stream_id, ¤tPhysicalFormatAddress, 0, NULL, &i_param_size, &p_sys->sfmt_revert);
673 msg_Err(p_aout, "could not retrieve the original streamformat: [%4.4s]", (char *)&err);
676 p_sys->b_revert = true;
679 for (int j = 0; j < i_formats; j++) {
680 if (p_format_list[j].mFormat.mFormatID == 'IAC3' ||
681 p_format_list[j].mFormat.mFormatID == 'iac3' ||
682 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
683 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3) {
684 if (p_format_list[j].mFormat.mSampleRate == fmt->i_rate) {
685 i_requested_rate_format = j;
687 } else if (p_format_list[j].mFormat.mSampleRate == p_sys->sfmt_revert.mSampleRate)
688 i_current_rate_format = j;
690 if (i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate)
691 i_backup_rate_format = j;
697 if (i_requested_rate_format >= 0) /* We prefer to output at the samplerate of the original audio */
698 p_sys->stream_format = p_format_list[i_requested_rate_format].mFormat;
699 else if (i_current_rate_format >= 0) /* If not possible, we will try to use the current samplerate of the device */
700 p_sys->stream_format = p_format_list[i_current_rate_format].mFormat;
702 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) */
708 /* get notified when we don't have spdif-output anymore */
709 err = AudioObjectAddPropertyListener(p_sys->i_stream_id, &physicalFormatsAddress, HardwareListener, (void *)p_aout);
711 msg_Warn(p_aout, "could not set audio device property streams callback on device: %4.4s",
715 msg_Dbg(p_aout, STREAM_FORMAT_MSG("original stream format: ", p_sys->sfmt_revert));
717 if (!AudioStreamChangeFormat(p_aout, p_sys->i_stream_id, p_sys->stream_format))
720 /* Set the format flags */
721 if (p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian)
722 fmt->i_format = VLC_CODEC_SPDIFB;
724 fmt->i_format = VLC_CODEC_SPDIFL;
725 fmt->i_bytes_per_frame = AOUT_SPDIF_SIZE;
726 fmt->i_frame_length = A52_FRAME_NB;
727 fmt->i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
728 aout_FormatPrepare(fmt);
729 aout_PacketInit(p_aout, &p_sys->packet, A52_FRAME_NB, fmt);
731 /* Add IOProc callback */
732 err = AudioDeviceCreateIOProcID(p_sys->i_selected_dev,
733 (AudioDeviceIOProc)RenderCallbackSPDIF,
737 msg_Err(p_aout, "AudioDeviceCreateIOProcID failed: [%4.4s]", (char *)&err);
738 aout_PacketDestroy (p_aout);
742 /* Check for the difference between the Device clock and mdate */
743 p_sys->clock_diff = - (mtime_t)
744 AudioConvertHostTimeToNanos(AudioGetCurrentHostTime()) / 1000;
745 p_sys->clock_diff += mdate();
748 err = AudioDeviceStart(p_sys->i_selected_dev, p_sys->i_procID);
750 msg_Err(p_aout, "AudioDeviceStart failed: [%4.4s]", (char *)&err);
752 err = AudioDeviceDestroyIOProcID(p_sys->i_selected_dev, p_sys->i_procID);
754 msg_Err(p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err);
756 aout_PacketDestroy (p_aout);
764 /*****************************************************************************
765 * Close: Close HAL AudioUnit
766 *****************************************************************************/
767 static void Stop(audio_output_t *p_aout)
769 struct aout_sys_t *p_sys = p_aout->sys;
770 OSStatus err = noErr;
771 UInt32 i_param_size = 0;
773 AudioObjectPropertyAddress deviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
774 err = AudioObjectRemovePropertyListener(p_sys->i_selected_dev, &deviceAliveAddress, HardwareListener, NULL);
776 msg_Err(p_aout, "failed to remove audio device life checker: [%4.4s]", (char *)&err);
778 if (p_sys->b_digital) {
779 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
780 err = AudioObjectRemovePropertyListener(p_sys->i_stream_id, &physicalFormatsAddress, HardwareListener, NULL);
782 msg_Err(p_aout, "failed to remove audio device property streams callback: [%4.4s]", (char *)&err);
785 if (p_sys->au_unit) {
786 verify_noerr(AudioOutputUnitStop(p_sys->au_unit));
787 verify_noerr(AudioUnitUninitialize(p_sys->au_unit));
788 verify_noerr(CloseComponent(p_sys->au_unit));
791 if (p_sys->b_digital) {
793 err = AudioDeviceStop(p_sys->i_selected_dev,
796 msg_Err(p_aout, "AudioDeviceStop failed: [%4.4s]", (char *)&err);
798 /* Remove IOProc callback */
799 err = AudioDeviceDestroyIOProcID(p_sys->i_selected_dev,
802 msg_Err(p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err);
805 AudioStreamChangeFormat(p_aout, p_sys->i_stream_id, p_sys->sfmt_revert);
807 if (p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3) {
809 Boolean b_writeable = false;
810 /* Revert mixable to true if we are allowed to */
811 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
812 err = AudioObjectIsPropertySettable(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable);
813 err = AudioObjectGetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix);
815 if (err == noErr && b_writeable) {
816 msg_Dbg(p_aout, "mixable is: %d", b_mix);
818 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix);
822 msg_Err(p_aout, "failed to set mixmode: [%4.4s]", (char *)&err);
826 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
827 err = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, NULL);
830 msg_Err(p_aout, "AudioHardwareRemovePropertyListener failed: [%4.4s]", (char *)&err);
832 if (p_sys->i_hog_pid == getpid()) {
833 p_sys->i_hog_pid = -1;
834 i_param_size = sizeof(p_sys->i_hog_pid);
835 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
836 kAudioDevicePropertyScopeOutput,
837 kAudioObjectPropertyElementMaster };
838 err = AudioObjectSetPropertyData(p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid);
840 msg_Err(p_aout, "Could not release hogmode: [%4.4s]", (char *)&err);
843 var_DelCallback(p_aout, "audio-device", AudioDeviceCallback, NULL);
845 aout_PacketDestroy(p_aout);
848 /*****************************************************************************
849 * Probe: Check which devices the OS has, and add them to our audio-device menu
850 *****************************************************************************/
851 static void Probe(audio_output_t * p_aout)
853 OSStatus err = noErr;
854 UInt32 i_param_size = 0;
855 AudioDeviceID devid_def = 0;
856 AudioDeviceID *p_devices = NULL;
857 vlc_value_t val, text;
859 struct aout_sys_t *p_sys = p_aout->sys;
861 /* Get number of devices */
862 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
863 err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size);
865 msg_Err(p_aout, "Could not get number of devices: [%s]", (char *)&err);
869 p_sys->i_devices = i_param_size / sizeof(AudioDeviceID);
871 if (p_sys->i_devices < 1) {
872 msg_Err(p_aout, "No audio output devices were found.");
875 msg_Dbg(p_aout, "found %u audio device(s)", (unsigned)p_sys->i_devices);
877 /* Allocate DeviceID array */
878 p_devices = (AudioDeviceID*)malloc(sizeof(AudioDeviceID) * p_sys->i_devices);
879 if (p_devices == NULL)
882 /* Populate DeviceID array */
883 err = AudioObjectGetPropertyData(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size, p_devices);
885 msg_Err(p_aout, "could not get the device IDs: [%s]", (char *)&err);
889 /* Find the ID of the default Device */
890 AudioObjectPropertyAddress defaultDeviceAddress = { kAudioHardwarePropertyDefaultOutputDevice, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
891 i_param_size = sizeof(AudioDeviceID);
892 err= AudioObjectGetPropertyData(kAudioObjectSystemObject, &defaultDeviceAddress, 0, NULL, &i_param_size, &devid_def);
894 msg_Err(p_aout, "could not get default audio device: [%s]", (char *)&err);
897 p_sys->i_default_dev = devid_def;
899 var_Create(p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE);
900 text.psz_string = (char*)_("Audio Device");
901 var_Change(p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL);
903 AudioObjectPropertyAddress deviceNameAddress = { kAudioDevicePropertyDeviceName, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
905 for (unsigned int i = 0; i < p_sys->i_devices; i++) {
909 /* Retrieve the length of the device name */
910 err = AudioObjectGetPropertyDataSize(p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size);
914 /* Retrieve the name of the device */
915 psz_name = (char *)malloc(i_param_size);
916 err = AudioObjectGetPropertyData(p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size, psz_name);
920 msg_Dbg(p_aout, "DevID: %u DevName: %s", (unsigned)p_devices[i], psz_name);
922 if (!AudioDeviceHasOutput(p_devices[i])) {
923 msg_Dbg(p_aout, "this device is INPUT only. skipping...");
928 /* Add the menu entries */
929 val.i_int = (int)p_devices[i];
930 text.psz_string = psz_name;
931 var_Change(p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text);
932 text.psz_string = NULL;
933 if (p_sys->i_default_dev == p_devices[i]) {
934 /* The default device is the selected device normally */
935 var_Change(p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL);
936 var_Set(p_aout, "audio-device", val);
939 if (AudioDeviceSupportsDigital(p_aout, p_devices[i])) {
940 val.i_int = (int)p_devices[i] | AOUT_VAR_SPDIF_FLAG;
941 if (asprintf(&text.psz_string, _("%s (Encoded Output)"), psz_name) != -1) {
942 var_Change(p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text);
943 free(text.psz_string);
944 if (p_sys->i_default_dev == p_devices[i] && var_InheritBool(p_aout, "spdif")) {
945 /* We selected to prefer SPDIF output if available
946 * then this "dummy" entry should be selected */
947 var_Change(p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL);
948 var_Set(p_aout, "audio-device", val);
956 /* If a device is already "preselected", then use this device */
957 var_Get(p_aout->p_libvlc, "macosx-audio-device", &val);
959 msg_Dbg(p_aout, "using preselected output device %#"PRIx64, val.i_int);
960 var_Change(p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL);
961 var_Set(p_aout, "audio-device", val);
964 /* Attach a Listener so that we are notified of a change in the Device setup */
965 err = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, (void *)p_aout);
967 msg_Warn(p_aout, "failed to add listener for audio device configuration (%i)", err);
975 msg_Warn(p_aout, "audio device already in use");
980 /*****************************************************************************
981 * AudioDeviceHasOutput: Checks if the Device actually provides any outputs at all
982 *****************************************************************************/
983 static int AudioDeviceHasOutput(AudioDeviceID i_dev_id)
987 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
988 verify_noerr(AudioObjectGetPropertyDataSize(i_dev_id, &streamsAddress, 0, NULL, &dataSize));
995 /*****************************************************************************
996 * AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
997 *****************************************************************************/
998 static int AudioDeviceSupportsDigital(audio_output_t *p_aout, AudioDeviceID i_dev_id)
1000 OSStatus err = noErr;
1001 UInt32 i_param_size = 0;
1002 AudioStreamID *p_streams = NULL;
1004 bool b_return = false;
1006 /* Retrieve all the output streams */
1007 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1008 err = AudioObjectGetPropertyDataSize(i_dev_id, &streamsAddress, 0, NULL, &i_param_size);
1010 msg_Err(p_aout, "could not get number of streams: [%s] (%i)", (char *)&err, (int32_t)err);
1014 i_streams = i_param_size / sizeof(AudioStreamID);
1015 p_streams = (AudioStreamID *)malloc(i_param_size);
1016 if (p_streams == NULL)
1019 err = AudioObjectGetPropertyData(i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams);
1021 msg_Err(p_aout, "could not get list of streams: [%s]", (char *)&err);
1025 for (int i = 0; i < i_streams; i++) {
1026 if (AudioStreamSupportsDigital(p_aout, p_streams[i]))
1034 /*****************************************************************************
1035 * AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
1036 *****************************************************************************/
1037 static int AudioStreamSupportsDigital(audio_output_t *p_aout, AudioStreamID i_stream_id)
1039 OSStatus err = noErr;
1040 UInt32 i_param_size = 0;
1041 AudioStreamRangedDescription *p_format_list = NULL;
1043 bool b_return = false;
1045 /* Retrieve all the stream formats supported by each output stream */
1046 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1047 err = AudioObjectGetPropertyDataSize(i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size);
1049 msg_Err(p_aout, "could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err);
1053 i_formats = i_param_size / sizeof(AudioStreamRangedDescription);
1054 msg_Dbg(p_aout, "found %i stream formats", i_formats);
1056 p_format_list = (AudioStreamRangedDescription *)malloc(i_param_size);
1057 if (p_format_list == NULL)
1060 err = AudioObjectGetPropertyData(i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list);
1062 msg_Err(p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err);
1063 free(p_format_list);
1064 p_format_list = NULL;
1068 for (int i = 0; i < i_formats; i++) {
1069 msg_Dbg(p_aout, STREAM_FORMAT_MSG("supported format: ", p_format_list[i].mFormat));
1071 if (p_format_list[i].mFormat.mFormatID == 'IAC3' ||
1072 p_format_list[i].mFormat.mFormatID == 'iac3' ||
1073 p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 ||
1074 p_format_list[i].mFormat.mFormatID == kAudioFormatAC3)
1078 free(p_format_list);
1082 /*****************************************************************************
1083 * AudioStreamChangeFormat: Change i_stream_id to change_format
1084 *****************************************************************************/
1085 static int AudioStreamChangeFormat(audio_output_t *p_aout, AudioStreamID i_stream_id, AudioStreamBasicDescription change_format)
1087 OSStatus err = noErr;
1088 UInt32 i_param_size = 0;
1090 AudioObjectPropertyAddress physicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1092 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
1094 msg_Dbg(p_aout, STREAM_FORMAT_MSG("setting stream format: ", change_format));
1096 /* Condition because SetProperty is asynchronious */
1097 vlc_cond_init(&w.cond);
1098 vlc_mutex_init(&w.lock);
1099 vlc_mutex_lock(&w.lock);
1101 /* Install the callback */
1102 err = AudioObjectAddPropertyListener(i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w);
1104 msg_Err(p_aout, "AudioObjectAddPropertyListener for kAudioStreamPropertyPhysicalFormat failed: [%4.4s]", (char *)&err);
1108 /* change the format */
1109 err = AudioObjectSetPropertyData(i_stream_id, &physicalFormatAddress, 0, NULL, sizeof(AudioStreamBasicDescription),
1112 msg_Err(p_aout, "could not set the stream format: [%4.4s]", (char *)&err);
1116 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
1117 * it is also not atomic in its behaviour.
1118 * Therefore we check 5 times before we really give up.
1119 * FIXME: failing isn't actually implemented yet. */
1120 for (int i = 0; i < 5; i++) {
1121 AudioStreamBasicDescription actual_format;
1122 mtime_t timeout = mdate() + 500000;
1124 if (vlc_cond_timedwait(&w.cond, &w.lock, timeout))
1125 msg_Dbg(p_aout, "reached timeout");
1127 i_param_size = sizeof(AudioStreamBasicDescription);
1128 err = AudioObjectGetPropertyData(i_stream_id, &physicalFormatAddress, 0, NULL, &i_param_size, &actual_format);
1130 msg_Dbg(p_aout, STREAM_FORMAT_MSG("actual format in use: ", actual_format));
1131 if (actual_format.mSampleRate == change_format.mSampleRate &&
1132 actual_format.mFormatID == change_format.mFormatID &&
1133 actual_format.mFramesPerPacket == change_format.mFramesPerPacket) {
1134 /* The right format is now active */
1137 /* We need to check again */
1140 /* Removing the property listener */
1141 err = AudioObjectRemovePropertyListener(i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w);
1143 msg_Err(p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err);
1147 /* Destroy the lock and condition */
1148 vlc_mutex_unlock(&w.lock);
1149 vlc_mutex_destroy(&w.lock);
1150 vlc_cond_destroy(&w.cond);
1155 /*****************************************************************************
1156 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1157 * us to provide some more audio data.
1158 * Don't print anything during normal playback, calling blocking function from
1159 * this callback is not allowed.
1160 *****************************************************************************/
1161 static OSStatus RenderCallbackAnalog(vlc_object_t *_p_aout,
1162 AudioUnitRenderActionFlags *ioActionFlags,
1163 const AudioTimeStamp *inTimeStamp,
1164 unsigned int inBusNumber,
1165 unsigned int inNumberFrames,
1166 AudioBufferList *ioData)
1168 AudioTimeStamp host_time;
1169 mtime_t current_date = 0;
1170 uint32_t i_mData_bytes = 0;
1172 audio_output_t * p_aout = (audio_output_t *)_p_aout;
1173 struct aout_sys_t * p_sys = p_aout->sys;
1175 VLC_UNUSED(ioActionFlags);
1176 VLC_UNUSED(inBusNumber);
1177 VLC_UNUSED(inNumberFrames);
1179 host_time.mFlags = kAudioTimeStampHostTimeValid;
1180 AudioDeviceTranslateTime(p_sys->i_selected_dev, inTimeStamp, &host_time);
1182 /* Check for the difference between the Device clock and mdate */
1183 p_sys->clock_diff = - (mtime_t)
1184 AudioConvertHostTimeToNanos(AudioGetCurrentHostTime()) / 1000;
1185 p_sys->clock_diff += mdate();
1187 current_date = p_sys->clock_diff +
1188 AudioConvertHostTimeToNanos(host_time.mHostTime) / 1000;
1189 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31); // 31 = Latency in Frames. retrieve somewhere
1191 if (ioData == NULL || ioData->mNumberBuffers < 1) {
1192 msg_Err(p_aout, "no iodata or buffers");
1195 if (ioData->mNumberBuffers > 1)
1196 msg_Err(p_aout, "well this is weird. seems like there is more than one buffer...");
1199 if (p_sys->i_total_bytes > 0) {
1200 i_mData_bytes = __MIN(p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize);
1201 memcpy(ioData->mBuffers[0].mData,
1202 &p_sys->p_remainder_buffer[p_sys->i_read_bytes],
1204 p_sys->i_read_bytes += i_mData_bytes;
1205 current_date += (mtime_t) ((mtime_t) 1000000 / p_sys->packet.format.i_rate) *
1206 (i_mData_bytes / 4 / aout_FormatNbChannels(&p_sys->packet.format)); // 4 is fl32 specific
1208 if (p_sys->i_read_bytes >= p_sys->i_total_bytes)
1209 p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
1212 while(i_mData_bytes < ioData->mBuffers[0].mDataByteSize) {
1213 /* We don't have enough data yet */
1215 p_buffer = aout_PacketNext(p_aout, current_date);
1217 if (p_buffer != NULL)
1219 uint32_t i_second_mData_bytes = __MIN(p_buffer->i_buffer, ioData->mBuffers[0].mDataByteSize - i_mData_bytes);
1221 memcpy((uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes,
1222 p_buffer->p_buffer, i_second_mData_bytes);
1223 i_mData_bytes += i_second_mData_bytes;
1225 if (i_mData_bytes >= ioData->mBuffers[0].mDataByteSize)
1227 p_sys->i_total_bytes = p_buffer->i_buffer - i_second_mData_bytes;
1228 memcpy(p_sys->p_remainder_buffer,
1229 &p_buffer->p_buffer[i_second_mData_bytes],
1230 p_sys->i_total_bytes);
1231 block_Release(p_buffer);
1234 /* update current_date */
1235 current_date += (mtime_t) ((mtime_t) 1000000 / p_sys->packet.format.i_rate) *
1236 (i_second_mData_bytes / 4 / aout_FormatNbChannels(&p_sys->packet.format)); // 4 is fl32 specific
1237 block_Release(p_buffer);
1239 memset((uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes,
1240 0,ioData->mBuffers[0].mDataByteSize - i_mData_bytes);
1241 i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
1247 /*****************************************************************************
1248 * RenderCallbackSPDIF: callback for SPDIF audio output
1249 *****************************************************************************/
1250 static OSStatus RenderCallbackSPDIF (AudioDeviceID inDevice,
1251 const AudioTimeStamp * inNow,
1252 const void * inInputData,
1253 const AudioTimeStamp * inInputTime,
1254 AudioBufferList * outOutputData,
1255 const AudioTimeStamp * inOutputTime,
1256 void * threadGlobals)
1259 mtime_t current_date;
1261 audio_output_t * p_aout = (audio_output_t *)threadGlobals;
1262 struct aout_sys_t * p_sys = p_aout->sys;
1264 VLC_UNUSED(inDevice);
1265 VLC_UNUSED(inInputData);
1266 VLC_UNUSED(inInputTime);
1268 /* Check for the difference between the Device clock and mdate */
1269 p_sys->clock_diff = - (mtime_t)
1270 AudioConvertHostTimeToNanos(inNow->mHostTime) / 1000;
1271 p_sys->clock_diff += mdate();
1273 current_date = p_sys->clock_diff +
1274 AudioConvertHostTimeToNanos(inOutputTime->mHostTime) / 1000;
1275 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31); // 31 = Latency in Frames. retrieve somewhere
1277 p_buffer = aout_PacketNext(p_aout, current_date);
1279 #define BUFFER outOutputData->mBuffers[p_sys->i_stream_index]
1280 if (p_buffer != NULL) {
1281 if ((int)BUFFER.mDataByteSize != (int)p_buffer->i_buffer)
1282 msg_Warn(p_aout, "bytesize: %d nb_bytes: %d", (int)BUFFER.mDataByteSize, (int)p_buffer->i_buffer);
1284 /* move data into output data buffer */
1285 memcpy(BUFFER.mData, p_buffer->p_buffer, p_buffer->i_buffer);
1286 block_Release(p_buffer);
1289 memset(BUFFER.mData, 0, BUFFER.mDataByteSize);
1295 /*****************************************************************************
1296 * HardwareListener: Warns us of changes in the list of registered devices
1297 *****************************************************************************/
1298 static OSStatus HardwareListener(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1300 OSStatus err = noErr;
1301 audio_output_t *p_aout = (audio_output_t *)inClientData;
1302 VLC_UNUSED(inObjectID);
1304 for (unsigned int i = 0; i < inNumberAddresses; i++) {
1305 if (inAddresses[i].mSelector == kAudioHardwarePropertyDevices) {
1306 /* something changed in the list of devices */
1307 /* We trigger the audio-device's aout_ChannelsRestart callback */
1308 msg_Warn(p_aout, "audio device configuration changed, resetting cache");
1309 var_TriggerCallback(p_aout, "audio-device");
1310 var_Destroy(p_aout, "audio-device");
1311 } else if (inAddresses[i].mSelector == kAudioDevicePropertyDeviceIsAlive) {
1312 msg_Warn(p_aout, "audio device died, resetting aout");
1313 var_TriggerCallback(p_aout, "audio-device");
1314 var_Destroy(p_aout, "audio-device");
1315 } else if (inAddresses[i].mSelector == kAudioStreamPropertyAvailablePhysicalFormats) {
1316 msg_Warn(p_aout, "available physical formats for audio device changed, resetting aout");
1317 var_TriggerCallback(p_aout, "audio-device");
1318 var_Destroy(p_aout, "audio-device");
1325 /*****************************************************************************
1327 *****************************************************************************/
1328 static OSStatus StreamListener(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1330 OSStatus err = noErr;
1331 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1333 VLC_UNUSED(inObjectID);
1335 for (unsigned int i = 0; i < inNumberAddresses; i++) {
1336 if (inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat) {
1337 vlc_mutex_lock(&w->lock);
1338 vlc_cond_signal(&w->cond);
1339 vlc_mutex_unlock(&w->lock);
1346 /*****************************************************************************
1347 * AudioDeviceCallback: Callback triggered when the audio-device variable is changed
1348 *****************************************************************************/
1349 static int AudioDeviceCallback(vlc_object_t *p_this, const char *psz_variable,
1350 vlc_value_t old_val, vlc_value_t new_val, void *param)
1352 audio_output_t *p_aout = (audio_output_t *)p_this;
1353 var_Set(p_aout->p_libvlc, "macosx-audio-device", new_val);
1354 msg_Dbg(p_aout, "Set Device: %#"PRIx64, new_val.i_int);
1355 return aout_ChannelsRestart(p_this, psz_variable, old_val, new_val, param);
1359 /*****************************************************************************
1360 * VolumeSet: Implements volume_set(). Update the CoreAudio AU volume immediately.
1361 *****************************************************************************/
1362 static int VolumeSet(audio_output_t * p_aout, float volume)
1364 struct aout_sys_t *p_sys = p_aout->sys;
1367 aout_VolumeReport(p_aout, volume);
1369 volume = volume * volume * volume; // cubic mapping from output.c
1371 /* Set volume for output unit */
1372 ostatus = AudioUnitSetParameter(p_sys->au_unit,
1373 kHALOutputParam_Volume,
1374 kAudioUnitScope_Global,
1382 static int MuteSet(audio_output_t * p_aout, bool mute)
1384 aout_MuteReport(p_aout, mute);
1389 static int Open(vlc_object_t *obj)
1391 audio_output_t *aout = (audio_output_t *)obj;
1392 aout_sys_t *sys = malloc(sizeof (*sys));
1394 if (unlikely(sys == NULL))
1397 aout->start = Start;
1399 aout->volume_set = VolumeSet;
1400 aout->mute_set = MuteSet;
1404 static void Close(vlc_object_t *obj)
1406 audio_output_t *aout = (audio_output_t *)obj;
1407 aout_sys_t *sys = aout->sys;