1 /*****************************************************************************
2 * auhal.c: AUHAL and Coreaudio output plugin
3 *****************************************************************************
4 * Copyright (C) 2005, 2011 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 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_dialog.h> // dialog_Fatal
36 #include <vlc_aout.h> // aout_*
38 #include <AudioUnit/AudioUnit.h> // AudioUnit
39 #include <CoreAudio/CoreAudio.h> // AudioDeviceID
40 #include <AudioToolbox/AudioFormat.h> // AudioFormatGetProperty
41 #include <CoreServices/CoreServices.h>
44 # define verify_noerr(a) assert((a) == noErr)
47 #define STREAM_FORMAT_MSG( pre, sfm ) \
48 pre "[%f][%4.4s][%u][%u][%u][%u][%u][%u]", \
49 sfm.mSampleRate, (char *)&sfm.mFormatID, \
50 (unsigned int)sfm.mFormatFlags, (unsigned int)sfm.mBytesPerPacket, \
51 (unsigned int)sfm.mFramesPerPacket, (unsigned int)sfm.mBytesPerFrame, \
52 (unsigned int)sfm.mChannelsPerFrame, (unsigned int)sfm.mBitsPerChannel
54 #define FRAMESIZE 2048
55 #define BUFSIZE (FRAMESIZE * 8) * 8
56 #define AOUT_VAR_SPDIF_FLAG 0xf00000
60 * - clean up the debug info
61 * - be better at changing stream setup or devices setup changes while playing.
65 /*****************************************************************************
66 * aout_sys_t: private audio output method descriptor
67 *****************************************************************************
68 * This structure is part of the audio output thread descriptor.
69 * It describes the CoreAudio specific properties of an output thread.
70 *****************************************************************************/
74 AudioDeviceID i_default_dev; /* DeviceID of defaultOutputDevice */
75 AudioDeviceID i_selected_dev; /* DeviceID of the selected device */
76 AudioDeviceIOProcID i_procID; /* DeviceID of current device */
77 UInt32 i_devices; /* Number of CoreAudio Devices */
78 bool b_digital; /* Are we running in digital mode? */
79 mtime_t clock_diff; /* Difference between VLC clock and Device clock */
82 Component au_component; /* The Audiocomponent we use */
83 AudioUnit au_unit; /* The AudioUnit we use */
84 uint8_t p_remainder_buffer[BUFSIZE];
85 uint32_t i_read_bytes;
86 uint32_t i_total_bytes;
88 /* CoreAudio SPDIF mode specific */
89 pid_t i_hog_pid; /* The keep the pid of our hog status */
90 AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
91 int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
92 AudioStreamBasicDescription stream_format; /* The format we changed the stream to */
93 AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
94 bool b_revert; /* Wether we need to revert the stream format */
95 bool b_changed_mixing; /* Wether we need to set the mixing mode back */
98 /*****************************************************************************
100 *****************************************************************************/
101 static int Open ( vlc_object_t * );
102 static int OpenAnalog ( audio_output_t * );
103 static int OpenSPDIF ( audio_output_t * );
104 static void Close ( vlc_object_t * );
106 static void Probe ( audio_output_t * );
108 static int AudioDeviceHasOutput ( AudioDeviceID );
109 static int AudioDeviceSupportsDigital( audio_output_t *, AudioDeviceID );
110 static int AudioStreamSupportsDigital( audio_output_t *, AudioStreamID );
111 static int AudioStreamChangeFormat ( audio_output_t *, AudioStreamID, AudioStreamBasicDescription );
113 static OSStatus RenderCallbackAnalog ( vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
114 unsigned int, unsigned int, AudioBufferList *);
115 static OSStatus RenderCallbackSPDIF ( AudioDeviceID, const AudioTimeStamp *, const void *, const AudioTimeStamp *,
116 AudioBufferList *, const AudioTimeStamp *, void * );
117 static OSStatus HardwareListener ( AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void * );
118 static OSStatus StreamListener ( AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void * );
119 static int AudioDeviceCallback ( vlc_object_t *, const char *,
120 vlc_value_t, vlc_value_t, void * );
122 static int VolumeSet ( audio_output_t *, float, bool );
125 /*****************************************************************************
127 *****************************************************************************/
128 #define ADEV_TEXT N_("Audio Device")
129 #define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
130 "audio device, as listed in your 'Audio Device' menu. This device will " \
131 "then be used by default for audio playback.")
134 set_shortname( "auhal" )
135 set_description( N_("HAL AudioUnit output") )
136 set_capability( "audio output", 101 )
137 set_category( CAT_AUDIO )
138 set_subcategory( SUBCAT_AUDIO_AOUT )
139 set_callbacks( Open, Close )
140 add_integer( "macosx-audio-device", 0, ADEV_TEXT, ADEV_LONGTEXT, false )
143 /*****************************************************************************
144 * Open: open macosx audio output
145 *****************************************************************************/
146 static int Open( vlc_object_t * p_this )
148 OSStatus err = noErr;
149 UInt32 i_param_size = 0;
150 struct aout_sys_t *p_sys = NULL;
152 audio_output_t *p_aout = (audio_output_t *)p_this;
154 /* Use int here, to match kAudioDevicePropertyDeviceIsAlive
158 /* Allocate structure */
159 p_aout->sys = malloc( sizeof( aout_sys_t ) );
160 if( p_aout->sys == NULL )
164 p_sys->i_default_dev = 0;
165 p_sys->i_selected_dev = 0;
166 p_sys->i_devices = 0;
167 p_sys->b_digital = false;
168 p_sys->au_component = NULL;
169 p_sys->au_unit = NULL;
170 p_sys->clock_diff = (mtime_t) 0;
171 p_sys->i_read_bytes = 0;
172 p_sys->i_total_bytes = 0;
173 p_sys->i_hog_pid = -1;
174 p_sys->i_stream_id = 0;
175 p_sys->i_stream_index = -1;
176 p_sys->b_revert = false;
177 p_sys->b_changed_mixing = false;
178 memset( p_sys->p_remainder_buffer, 0, sizeof(uint8_t) * BUFSIZE );
180 p_aout->pf_play = aout_PacketPlay;
181 p_aout->pf_pause = aout_PacketPause;
182 p_aout->pf_flush = aout_PacketFlush;
184 aout_FormatPrint( p_aout, "VLC is looking for:", &p_aout->format );
186 /* Persistent device variable */
187 if( var_Type( p_aout->p_libvlc, "macosx-audio-device" ) == 0 )
189 var_Create( p_aout->p_libvlc, "macosx-audio-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
192 /* Build a list of devices */
193 if( var_Type( p_aout, "audio-device" ) == 0 )
198 /* What device do we want? */
199 if( var_Get( p_aout, "audio-device", &val ) < 0 )
201 msg_Err( p_aout, "audio-device var does not exist. device probe failed." );
205 p_sys->i_selected_dev = val.i_int & ~AOUT_VAR_SPDIF_FLAG; /* remove SPDIF flag to get the true DeviceID */
206 bool b_supports_digital = ( val.i_int & AOUT_VAR_SPDIF_FLAG );
207 if( b_supports_digital )
208 msg_Dbg( p_aout, "audio device supports digital output" );
210 /* Check if the desired device is alive and usable */
211 /* TODO: add a callback to the device to alert us if the device dies */
212 i_param_size = sizeof( b_alive );
213 AudioObjectPropertyAddress audioDeviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive,
214 kAudioDevicePropertyScopeOutput,
215 kAudioObjectPropertyElementMaster };
216 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceAliveAddress, 0, NULL, &i_param_size, &b_alive );
220 /* Be tolerant, only give a warning here */
221 msg_Warn( p_aout, "could not check whether device [0x%x] is alive: %4.4s",
222 (unsigned int)p_sys->i_selected_dev, (char *)&err );
228 msg_Warn( p_aout, "selected audio device is not alive, switching to default device" );
229 p_sys->i_selected_dev = p_sys->i_default_dev;
232 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
233 kAudioDevicePropertyScopeOutput,
234 kAudioObjectPropertyElementMaster };
235 i_param_size = sizeof( p_sys->i_hog_pid );
236 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, &i_param_size, &p_sys->i_hog_pid );
239 /* This is not a fatal error. Some drivers simply don't support this property */
240 msg_Warn( p_aout, "could not check whether device is hogged: %4.4s",
242 p_sys->i_hog_pid = -1;
245 if( p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid() )
247 msg_Err( p_aout, "Selected audio device is exclusively in use by another program." );
248 dialog_Fatal( p_aout, _("Audio output failed"), "%s",
249 _("The selected audio output device is exclusively in "
250 "use by another program.") );
254 /* If we change the device we want to use, we should renegotiate the audio chain */
255 var_AddCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
257 /* Check for Digital mode or Analog output mode */
258 if( AOUT_FMT_SPDIF( &p_aout->format ) && b_supports_digital )
260 if( OpenSPDIF( p_aout ) )
262 msg_Dbg( p_aout, "digital output successfully opened" );
268 if( OpenAnalog( p_aout ) )
270 msg_Dbg( p_aout, "analog output successfully opened" );
276 /* If we reach this, this aout has failed */
277 msg_Err( p_aout, "opening the auhal output failed" );
278 var_Destroy( p_aout, "audio-device" );
283 /*****************************************************************************
284 * Open: open and setup a HAL AudioUnit to do analog (multichannel) audio output
285 *****************************************************************************/
286 static int OpenAnalog( audio_output_t *p_aout )
288 struct aout_sys_t *p_sys = p_aout->sys;
289 OSStatus err = noErr;
290 UInt32 i_param_size = 0;
292 ComponentDescription desc;
293 AudioStreamBasicDescription DeviceFormat;
294 AudioChannelLayout *layout;
295 AudioChannelLayout new_layout;
296 AURenderCallbackStruct input;
298 /* Lets go find our Component */
299 desc.componentType = kAudioUnitType_Output;
300 desc.componentSubType = kAudioUnitSubType_HALOutput;
301 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
302 desc.componentFlags = 0;
303 desc.componentFlagsMask = 0;
305 p_sys->au_component = FindNextComponent( NULL, &desc );
306 if( p_sys->au_component == NULL )
308 msg_Warn( p_aout, "we cannot find our HAL component" );
312 err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
315 msg_Warn( p_aout, "we cannot open our HAL component" );
319 /* Set the device we will use for this output unit */
320 err = AudioUnitSetProperty( p_sys->au_unit,
321 kAudioOutputUnitProperty_CurrentDevice,
322 kAudioUnitScope_Global,
324 &p_sys->i_selected_dev,
325 sizeof( AudioDeviceID ));
329 msg_Warn( p_aout, "we cannot select the audio device" );
333 /* Get the current format */
334 i_param_size = sizeof(AudioStreamBasicDescription);
336 err = AudioUnitGetProperty( p_sys->au_unit,
337 kAudioUnitProperty_StreamFormat,
338 kAudioUnitScope_Input,
343 if( err != noErr ) return false;
344 else msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is: ", DeviceFormat ) );
346 /* Get the channel layout of the device side of the unit (vlc -> unit -> device) */
347 err = AudioUnitGetPropertyInfo( p_sys->au_unit,
348 kAudioDevicePropertyPreferredChannelLayout,
349 kAudioUnitScope_Output,
356 layout = (AudioChannelLayout *)malloc( i_param_size);
358 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
359 kAudioDevicePropertyPreferredChannelLayout,
360 kAudioUnitScope_Output,
365 /* We need to "fill out" the ChannelLayout, because there are multiple ways that it can be set */
366 if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
368 /* bitmap defined channellayout */
369 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
370 sizeof( UInt32), &layout->mChannelBitmap,
374 else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
376 /* layouttags defined channellayout */
377 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
378 sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
383 msg_Dbg( p_aout, "layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
385 /* Initialize the VLC core channel count */
386 p_aout->format.i_physical_channels = 0;
387 i_original = p_aout->format.i_original_channels & AOUT_CHAN_PHYSMASK;
389 if( i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2 )
391 /* We only need Mono or cannot output more than 1 channel */
392 p_aout->format.i_physical_channels = AOUT_CHAN_CENTER;
394 else if( i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3 )
396 /* We only need Stereo or cannot output more than 2 channels */
397 p_aout->format.i_physical_channels = AOUT_CHAN_RIGHT | AOUT_CHAN_LEFT;
401 /* We want more than stereo and we can do that */
402 for( unsigned int i = 0; i < layout->mNumberChannelDescriptions; i++ )
404 msg_Dbg( p_aout, "this is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
406 switch( layout->mChannelDescriptions[i].mChannelLabel )
408 case kAudioChannelLabel_Left:
409 p_aout->format.i_physical_channels |= AOUT_CHAN_LEFT;
411 case kAudioChannelLabel_Right:
412 p_aout->format.i_physical_channels |= AOUT_CHAN_RIGHT;
414 case kAudioChannelLabel_Center:
415 p_aout->format.i_physical_channels |= AOUT_CHAN_CENTER;
417 case kAudioChannelLabel_LFEScreen:
418 p_aout->format.i_physical_channels |= AOUT_CHAN_LFE;
420 case kAudioChannelLabel_LeftSurround:
421 p_aout->format.i_physical_channels |= AOUT_CHAN_REARLEFT;
423 case kAudioChannelLabel_RightSurround:
424 p_aout->format.i_physical_channels |= AOUT_CHAN_REARRIGHT;
426 case kAudioChannelLabel_RearSurroundLeft:
427 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
429 case kAudioChannelLabel_RearSurroundRight:
430 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
432 case kAudioChannelLabel_CenterSurround:
433 p_aout->format.i_physical_channels |= AOUT_CHAN_REARCENTER;
436 msg_Warn( p_aout, "unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
439 if( p_aout->format.i_physical_channels == 0 )
441 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
442 msg_Err( p_aout, "You should configure your speaker layout with Audio Midi Setup Utility in /Applications/Utilities. Now using Stereo mode." );
443 dialog_Fatal( p_aout, _("Audio device is not configured"), "%s",
444 _("You should configure your speaker layout with "
445 "the \"Audio Midi Setup\" utility in /Applications/"
446 "Utilities. Stereo mode is being used now.") );
453 msg_Warn( p_aout, "this driver does not support kAudioDevicePropertyPreferredChannelLayout. BAD DRIVER AUTHOR !!!" );
454 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
457 msg_Dbg( p_aout, "selected %d physical channels for device output", aout_FormatNbChannels( &p_aout->format ) );
458 msg_Dbg( p_aout, "VLC will output: %s", aout_FormatPrintChannels( &p_aout->format ));
460 memset (&new_layout, 0, sizeof(new_layout));
461 switch( aout_FormatNbChannels( &p_aout->format ) )
464 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
467 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
470 if( p_aout->format.i_physical_channels & AOUT_CHAN_CENTER )
472 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
474 else if( p_aout->format.i_physical_channels & AOUT_CHAN_LFE )
476 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
480 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_LFE ) )
482 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
484 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT ) )
486 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
488 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER ) )
490 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
494 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER ) )
496 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
498 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
500 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
504 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
506 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
510 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_AudioUnit_6_0; // L R Ls Rs C Cs
514 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
515 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
518 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
519 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
523 /* Set up the format to be used */
524 DeviceFormat.mSampleRate = p_aout->format.i_rate;
525 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
527 /* We use float 32. It's the best supported format by both VLC and Coreaudio */
528 p_aout->format.i_format = VLC_CODEC_FL32;
529 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
530 DeviceFormat.mBitsPerChannel = 32;
531 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->format );
533 /* Calculate framesizes and stuff */
534 DeviceFormat.mFramesPerPacket = 1;
535 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
536 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
538 /* Set the desired format */
539 i_param_size = sizeof(AudioStreamBasicDescription);
540 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
541 kAudioUnitProperty_StreamFormat,
542 kAudioUnitScope_Input,
547 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
549 /* Retrieve actual format */
550 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
551 kAudioUnitProperty_StreamFormat,
552 kAudioUnitScope_Input,
557 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
559 /* Do the last VLC aout setups */
560 aout_FormatPrepare( &p_aout->format );
561 aout_PacketInit( p_aout, &p_sys->packet, FRAMESIZE );
562 aout_VolumeHardInit (p_aout, VolumeSet);
564 /* set the IOproc callback */
565 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
566 input.inputProcRefCon = p_aout;
568 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
569 kAudioUnitProperty_SetRenderCallback,
570 kAudioUnitScope_Input,
571 0, &input, sizeof( input ) ) );
573 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
574 input.inputProcRefCon = p_aout;
576 /* Set the new_layout as the layout VLC will use to feed the AU unit */
577 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
578 kAudioUnitProperty_AudioChannelLayout,
579 kAudioUnitScope_Input,
580 0, &new_layout, sizeof(new_layout) ) );
582 if( new_layout.mNumberChannelDescriptions > 0 )
583 free( new_layout.mChannelDescriptions );
586 verify_noerr( AudioUnitInitialize(p_sys->au_unit) );
588 /* Find the difference between device clock and mdate clock */
589 p_sys->clock_diff = - (mtime_t)
590 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
591 p_sys->clock_diff += mdate();
594 verify_noerr( AudioOutputUnitStart(p_sys->au_unit) );
599 /*****************************************************************************
600 * Setup a encoded digital stream (SPDIF)
601 *****************************************************************************/
602 static int OpenSPDIF( audio_output_t * p_aout )
604 struct aout_sys_t *p_sys = p_aout->sys;
605 OSStatus err = noErr;
606 UInt32 i_param_size = 0, b_mix = 0;
607 Boolean b_writeable = false;
608 AudioStreamID *p_streams = NULL;
609 unsigned i_streams = 0;
611 /* Start doing the SPDIF setup proces */
612 p_sys->b_digital = true;
615 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
616 i_param_size = sizeof( p_sys->i_hog_pid );
617 p_sys->i_hog_pid = getpid() ;
619 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
623 msg_Err( p_aout, "failed to set hogmode: [%4.4s]", (char *)&err );
627 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
629 if (AudioObjectHasProperty(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress))
631 /* Set mixable to false if we are allowed to */
632 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
633 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size );
634 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
636 if( err == noErr && b_writeable )
639 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
640 p_sys->b_changed_mixing = true;
645 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
650 /* Get a list of all the streams on this device */
651 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
652 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size );
655 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
659 i_streams = i_param_size / sizeof( AudioStreamID );
660 p_streams = (AudioStreamID *)malloc( i_param_size );
661 if( p_streams == NULL )
664 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams );
668 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
673 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
674 for( unsigned i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++ )
676 /* Find a stream with a cac3 stream */
677 AudioStreamRangedDescription *p_format_list = NULL;
679 bool b_digital = false;
681 /* Retrieve all the stream formats supported by each output stream */
682 err = AudioObjectGetPropertyDataSize( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size );
685 msg_Err( p_aout, "OpenSPDIF: could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
689 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
690 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
691 if( p_format_list == NULL )
694 err = AudioObjectGetPropertyData( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
697 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
698 free( p_format_list );
702 /* Check if one of the supported formats is a digital format */
703 for( int j = 0; j < i_formats; j++ )
705 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
706 p_format_list[j].mFormat.mFormatID == 'iac3' ||
707 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
708 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3 )
717 /* if this stream supports a digital (cac3) format, then go set it. */
718 int i_requested_rate_format = -1;
719 int i_current_rate_format = -1;
720 int i_backup_rate_format = -1;
722 p_sys->i_stream_id = p_streams[i];
723 p_sys->i_stream_index = i;
725 if( !p_sys->b_revert )
727 AudioObjectPropertyAddress currentPhysicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
728 /* Retrieve the original format of this stream first if not done so already */
729 i_param_size = sizeof( p_sys->sfmt_revert );
730 err = AudioObjectGetPropertyData( p_sys->i_stream_id, ¤tPhysicalFormatAddress, 0, NULL, &i_param_size, &p_sys->sfmt_revert );
733 msg_Err( p_aout, "could not retrieve the original streamformat: [%4.4s]", (char *)&err );
736 p_sys->b_revert = true;
739 for( int j = 0; j < i_formats; j++ )
741 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
742 p_format_list[j].mFormat.mFormatID == 'iac3' ||
743 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
744 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3 )
746 if( p_format_list[j].mFormat.mSampleRate == p_aout->format.i_rate )
748 i_requested_rate_format = j;
751 else if( p_format_list[j].mFormat.mSampleRate == p_sys->sfmt_revert.mSampleRate )
753 i_current_rate_format = j;
757 if( i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate )
758 i_backup_rate_format = j;
764 if( i_requested_rate_format >= 0 ) /* We prefer to output at the samplerate of the original audio */
765 p_sys->stream_format = p_format_list[i_requested_rate_format].mFormat;
766 else if( i_current_rate_format >= 0 ) /* If not possible, we will try to use the current samplerate of the device */
767 p_sys->stream_format = p_format_list[i_current_rate_format].mFormat;
768 else 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) */
770 free( p_format_list );
774 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "original stream format: ", p_sys->sfmt_revert ) );
776 if( !AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->stream_format ) )
779 /* Set the format flags */
780 if( p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian )
781 p_aout->format.i_format = VLC_CODEC_SPDIFB;
783 p_aout->format.i_format = VLC_CODEC_SPDIFL;
784 p_aout->format.i_bytes_per_frame = AOUT_SPDIF_SIZE;
785 p_aout->format.i_frame_length = A52_FRAME_NB;
786 p_aout->format.i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
787 aout_FormatPrepare( &p_aout->format );
788 aout_PacketInit( p_aout, &p_sys->packet, A52_FRAME_NB );
789 aout_VolumeNoneInit( p_aout );
791 /* Add IOProc callback */
792 err = AudioDeviceCreateIOProcID( p_sys->i_selected_dev,
793 (AudioDeviceIOProc)RenderCallbackSPDIF,
798 msg_Err( p_aout, "AudioDeviceCreateIOProcID failed: [%4.4s]", (char *)&err );
799 aout_PacketDestroy (p_aout);
803 /* Check for the difference between the Device clock and mdate */
804 p_sys->clock_diff = - (mtime_t)
805 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
806 p_sys->clock_diff += mdate();
809 err = AudioDeviceStart( p_sys->i_selected_dev, p_sys->i_procID );
812 msg_Err( p_aout, "AudioDeviceStart failed: [%4.4s]", (char *)&err );
814 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
818 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
820 aout_PacketDestroy (p_aout);
828 /*****************************************************************************
829 * Close: Close HAL AudioUnit
830 *****************************************************************************/
831 static void Close( vlc_object_t * p_this )
833 audio_output_t *p_aout = (audio_output_t *)p_this;
834 struct aout_sys_t *p_sys = p_aout->sys;
835 OSStatus err = noErr;
836 UInt32 i_param_size = 0;
840 verify_noerr( AudioOutputUnitStop( p_sys->au_unit ) );
841 verify_noerr( AudioUnitUninitialize( p_sys->au_unit ) );
842 verify_noerr( CloseComponent( p_sys->au_unit ) );
845 if( p_sys->b_digital )
848 err = AudioDeviceStop( p_sys->i_selected_dev,
852 msg_Err( p_aout, "AudioDeviceStop failed: [%4.4s]", (char *)&err );
855 /* Remove IOProc callback */
856 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
860 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
863 if( p_sys->b_revert )
865 AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->sfmt_revert );
868 if( p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3 )
871 Boolean b_writeable = false;
872 /* Revert mixable to true if we are allowed to */
873 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
874 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
875 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
877 if( err == noErr && b_writeable )
879 msg_Dbg( p_aout, "mixable is: %d", b_mix );
881 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
886 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
891 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
892 err = AudioObjectRemovePropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, NULL );
896 msg_Err( p_aout, "AudioHardwareRemovePropertyListener failed: [%4.4s]", (char *)&err );
899 if( p_sys->i_hog_pid == getpid() )
901 p_sys->i_hog_pid = -1;
902 i_param_size = sizeof( p_sys->i_hog_pid );
903 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
904 kAudioDevicePropertyScopeOutput,
905 kAudioObjectPropertyElementMaster };
906 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
907 if( err != noErr ) msg_Err( p_aout, "Could not release hogmode: [%4.4s]", (char *)&err );
910 var_DelCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
912 aout_PacketDestroy( p_aout );
916 /*****************************************************************************
917 * Probe: Check which devices the OS has, and add them to our audio-device menu
918 *****************************************************************************/
919 static void Probe( audio_output_t * p_aout )
921 OSStatus err = noErr;
922 UInt32 i_param_size = 0;
923 AudioDeviceID devid_def = 0;
924 AudioDeviceID *p_devices = NULL;
925 vlc_value_t val, text;
927 struct aout_sys_t *p_sys = p_aout->sys;
929 /* Get number of devices */
930 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
931 err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size);
934 msg_Err( p_aout, "Could not get number of devices: [%s]", (char *)&err );
938 p_sys->i_devices = i_param_size / sizeof( AudioDeviceID );
940 if( p_sys->i_devices < 1 )
942 msg_Err( p_aout, "No audio output devices were found." );
945 msg_Dbg( p_aout, "found %u audio device(s)", (unsigned)p_sys->i_devices );
947 /* Allocate DeviceID array */
948 p_devices = (AudioDeviceID*)malloc( sizeof(AudioDeviceID) * p_sys->i_devices );
949 if( p_devices == NULL )
952 /* Populate DeviceID array */
953 err = AudioObjectGetPropertyData( kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size, p_devices );
956 msg_Err( p_aout, "could not get the device IDs: [%s]", (char *)&err );
960 /* Find the ID of the default Device */
961 AudioObjectPropertyAddress defaultDeviceAddress = { kAudioHardwarePropertyDefaultOutputDevice, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
962 i_param_size = sizeof( AudioDeviceID );
963 err= AudioObjectGetPropertyData( kAudioObjectSystemObject, &defaultDeviceAddress, 0, NULL, &i_param_size, &devid_def );
966 msg_Err( p_aout, "could not get default audio device: [%s]", (char *)&err );
969 p_sys->i_default_dev = devid_def;
971 var_Create( p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE );
972 text.psz_string = (char*)_("Audio Device");
973 var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
975 AudioObjectPropertyAddress deviceNameAddress = { kAudioDevicePropertyDeviceName, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
977 for( unsigned int i = 0; i < p_sys->i_devices; i++ )
982 /* Retrieve the length of the device name */
983 err = AudioObjectGetPropertyDataSize( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size );
984 if( err ) goto error;
986 /* Retrieve the name of the device */
987 psz_name = (char *)malloc( i_param_size );
988 err = AudioObjectGetPropertyData( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size, psz_name );
989 if( err ) goto error;
991 msg_Dbg( p_aout, "DevID: %u DevName: %s", (unsigned)p_devices[i], psz_name );
993 if( !AudioDeviceHasOutput( p_devices[i]) )
995 msg_Dbg( p_aout, "this device is INPUT only. skipping..." );
1000 /* Add the menu entries */
1001 val.i_int = (int)p_devices[i];
1002 text.psz_string = psz_name;
1003 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1004 text.psz_string = NULL;
1005 if( p_sys->i_default_dev == p_devices[i] )
1007 /* The default device is the selected device normally */
1008 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1009 var_Set( p_aout, "audio-device", val );
1012 if( AudioDeviceSupportsDigital( p_aout, p_devices[i] ) )
1014 val.i_int = (int)p_devices[i] | AOUT_VAR_SPDIF_FLAG;
1015 if( asprintf( &text.psz_string, _("%s (Encoded Output)"), psz_name ) != -1 )
1017 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1018 free( text.psz_string );
1019 if( p_sys->i_default_dev == p_devices[i]
1020 && var_InheritBool( p_aout, "spdif" ) )
1022 /* We selected to prefer SPDIF output if available
1023 * then this "dummy" entry should be selected */
1024 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1025 var_Set( p_aout, "audio-device", val );
1033 /* If a device is already "preselected", then use this device */
1034 var_Get( p_aout->p_libvlc, "macosx-audio-device", &val );
1037 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1038 var_Set( p_aout, "audio-device", val );
1041 /* Attach a Listener so that we are notified of a change in the Device setup */
1042 err = AudioObjectAddPropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, (void *)p_aout );
1050 msg_Warn( p_aout, "audio device already in use" );
1055 /*****************************************************************************
1056 * AudioDeviceHasOutput: Checks if the Device actually provides any outputs at all
1057 *****************************************************************************/
1058 static int AudioDeviceHasOutput( AudioDeviceID i_dev_id )
1062 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1063 verify_noerr( AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &dataSize ) );
1064 if (dataSize == 0) return FALSE;
1069 /*****************************************************************************
1070 * AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
1071 *****************************************************************************/
1072 static int AudioDeviceSupportsDigital( audio_output_t *p_aout, AudioDeviceID i_dev_id )
1074 OSStatus err = noErr;
1075 UInt32 i_param_size = 0;
1076 AudioStreamID *p_streams = NULL;
1078 bool b_return = false;
1080 /* Retrieve all the output streams */
1081 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1082 err = AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &i_param_size );
1085 msg_Err( p_aout, "could not get number of streams: [%s] (%i)", (char *)&err, (int32_t)err );
1089 i_streams = i_param_size / sizeof( AudioStreamID );
1090 p_streams = (AudioStreamID *)malloc( i_param_size );
1091 if( p_streams == NULL )
1094 err = AudioObjectGetPropertyData( i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams );
1097 msg_Err( p_aout, "could not get list of streams: [%s]", (char *)&err );
1101 for( int i = 0; i < i_streams; i++ )
1103 if( AudioStreamSupportsDigital( p_aout, p_streams[i] ) )
1111 /*****************************************************************************
1112 * AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
1113 *****************************************************************************/
1114 static int AudioStreamSupportsDigital( audio_output_t *p_aout, AudioStreamID i_stream_id )
1116 OSStatus err = noErr;
1117 UInt32 i_param_size = 0;
1118 AudioStreamRangedDescription *p_format_list = NULL;
1120 bool b_return = false;
1122 /* Retrieve all the stream formats supported by each output stream */
1123 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1124 err = AudioObjectGetPropertyDataSize( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size );
1127 msg_Err( p_aout, "could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
1131 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
1132 msg_Dbg( p_aout, "found %i stream formats", i_formats );
1134 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
1135 if( p_format_list == NULL )
1138 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
1141 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
1142 free( p_format_list);
1143 p_format_list = NULL;
1147 for( int i = 0; i < i_formats; i++ )
1149 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "supported format: ", p_format_list[i].mFormat ) );
1151 if( p_format_list[i].mFormat.mFormatID == 'IAC3' ||
1152 p_format_list[i].mFormat.mFormatID == 'iac3' ||
1153 p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 ||
1154 p_format_list[i].mFormat.mFormatID == kAudioFormatAC3 )
1160 free( p_format_list );
1164 /*****************************************************************************
1165 * AudioStreamChangeFormat: Change i_stream_id to change_format
1166 *****************************************************************************/
1167 static int AudioStreamChangeFormat( audio_output_t *p_aout, AudioStreamID i_stream_id, AudioStreamBasicDescription change_format )
1169 OSStatus err = noErr;
1170 UInt32 i_param_size = 0;
1172 AudioObjectPropertyAddress physicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1174 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
1176 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "setting stream format: ", change_format ) );
1178 /* Condition because SetProperty is asynchronious */
1179 vlc_cond_init( &w.cond );
1180 vlc_mutex_init( &w.lock );
1181 vlc_mutex_lock( &w.lock );
1183 /* Install the callback */
1184 err = AudioObjectAddPropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1187 msg_Err( p_aout, "AudioObjectAddPropertyListener for kAudioStreamPropertyPhysicalFormat failed: [%4.4s]", (char *)&err );
1191 /* change the format */
1192 err = AudioObjectSetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, sizeof( AudioStreamBasicDescription ),
1196 msg_Err( p_aout, "could not set the stream format: [%4.4s]", (char *)&err );
1200 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
1201 * it is also not atomic in its behaviour.
1202 * Therefore we check 5 times before we really give up.
1203 * FIXME: failing isn't actually implemented yet. */
1204 for( int i = 0; i < 5; i++ )
1206 AudioStreamBasicDescription actual_format;
1207 mtime_t timeout = mdate() + 500000;
1209 if( vlc_cond_timedwait( &w.cond, &w.lock, timeout ) )
1211 msg_Dbg( p_aout, "reached timeout" );
1214 i_param_size = sizeof( AudioStreamBasicDescription );
1215 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, &i_param_size, &actual_format );
1217 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "actual format in use: ", actual_format ) );
1218 if( actual_format.mSampleRate == change_format.mSampleRate &&
1219 actual_format.mFormatID == change_format.mFormatID &&
1220 actual_format.mFramesPerPacket == change_format.mFramesPerPacket )
1222 /* The right format is now active */
1225 /* We need to check again */
1228 /* Removing the property listener */
1229 err = AudioObjectRemovePropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1232 msg_Err( p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err );
1236 /* Destroy the lock and condition */
1237 vlc_mutex_unlock( &w.lock );
1238 vlc_mutex_destroy( &w.lock );
1239 vlc_cond_destroy( &w.cond );
1244 /*****************************************************************************
1245 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1246 * us to provide some more audio data.
1247 * Don't print anything during normal playback, calling blocking function from
1248 * this callback is not allowed.
1249 *****************************************************************************/
1250 static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
1251 AudioUnitRenderActionFlags *ioActionFlags,
1252 const AudioTimeStamp *inTimeStamp,
1253 unsigned int inBusNumber,
1254 unsigned int inNumberFrames,
1255 AudioBufferList *ioData )
1257 AudioTimeStamp host_time;
1258 mtime_t current_date = 0;
1259 uint32_t i_mData_bytes = 0;
1261 audio_output_t * p_aout = (audio_output_t *)_p_aout;
1262 struct aout_sys_t * p_sys = p_aout->sys;
1264 VLC_UNUSED(ioActionFlags);
1265 VLC_UNUSED(inBusNumber);
1266 VLC_UNUSED(inNumberFrames);
1268 host_time.mFlags = kAudioTimeStampHostTimeValid;
1269 AudioDeviceTranslateTime( p_sys->i_selected_dev, inTimeStamp, &host_time );
1271 /* Check for the difference between the Device clock and mdate */
1272 p_sys->clock_diff = - (mtime_t)
1273 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
1274 p_sys->clock_diff += mdate();
1276 current_date = p_sys->clock_diff +
1277 AudioConvertHostTimeToNanos( host_time.mHostTime ) / 1000;
1278 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1280 if( ioData == NULL && ioData->mNumberBuffers < 1 )
1282 msg_Err( p_aout, "no iodata or buffers");
1285 if( ioData->mNumberBuffers > 1 )
1286 msg_Err( p_aout, "well this is weird. seems like there is more than one buffer..." );
1289 if( p_sys->i_total_bytes > 0 )
1291 i_mData_bytes = __MIN( p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize );
1292 vlc_memcpy( ioData->mBuffers[0].mData,
1293 &p_sys->p_remainder_buffer[p_sys->i_read_bytes],
1295 p_sys->i_read_bytes += i_mData_bytes;
1296 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1297 ( i_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1299 if( p_sys->i_read_bytes >= p_sys->i_total_bytes )
1300 p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
1303 while( i_mData_bytes < ioData->mBuffers[0].mDataByteSize )
1305 /* We don't have enough data yet */
1306 aout_buffer_t * p_buffer;
1307 p_buffer = aout_PacketNext( p_aout, current_date );
1309 if( p_buffer != NULL )
1311 uint32_t i_second_mData_bytes = __MIN( p_buffer->i_buffer, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1313 vlc_memcpy( (uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes,
1314 p_buffer->p_buffer, i_second_mData_bytes );
1315 i_mData_bytes += i_second_mData_bytes;
1317 if( i_mData_bytes >= ioData->mBuffers[0].mDataByteSize )
1319 p_sys->i_total_bytes = p_buffer->i_buffer - i_second_mData_bytes;
1320 vlc_memcpy( p_sys->p_remainder_buffer,
1321 &p_buffer->p_buffer[i_second_mData_bytes],
1322 p_sys->i_total_bytes );
1323 aout_BufferFree( p_buffer );
1328 /* update current_date */
1329 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1330 ( i_second_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1332 aout_BufferFree( p_buffer );
1336 vlc_memset( (uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes,
1337 0,ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1338 i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
1344 /*****************************************************************************
1345 * RenderCallbackSPDIF: callback for SPDIF audio output
1346 *****************************************************************************/
1347 static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
1348 const AudioTimeStamp * inNow,
1349 const void * inInputData,
1350 const AudioTimeStamp * inInputTime,
1351 AudioBufferList * outOutputData,
1352 const AudioTimeStamp * inOutputTime,
1353 void * threadGlobals )
1355 aout_buffer_t * p_buffer;
1356 mtime_t current_date;
1358 audio_output_t * p_aout = (audio_output_t *)threadGlobals;
1359 struct aout_sys_t * p_sys = p_aout->sys;
1361 VLC_UNUSED(inDevice);
1362 VLC_UNUSED(inInputData);
1363 VLC_UNUSED(inInputTime);
1365 /* Check for the difference between the Device clock and mdate */
1366 p_sys->clock_diff = - (mtime_t)
1367 AudioConvertHostTimeToNanos( inNow->mHostTime ) / 1000;
1368 p_sys->clock_diff += mdate();
1370 current_date = p_sys->clock_diff +
1371 AudioConvertHostTimeToNanos( inOutputTime->mHostTime ) / 1000;
1372 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1374 p_buffer = aout_PacketNext( p_aout, current_date );
1376 #define BUFFER outOutputData->mBuffers[p_sys->i_stream_index]
1377 if( p_buffer != NULL )
1379 if( (int)BUFFER.mDataByteSize != (int)p_buffer->i_buffer)
1380 msg_Warn( p_aout, "bytesize: %d nb_bytes: %d", (int)BUFFER.mDataByteSize, (int)p_buffer->i_buffer );
1382 /* move data into output data buffer */
1383 vlc_memcpy( BUFFER.mData, p_buffer->p_buffer, p_buffer->i_buffer );
1384 aout_BufferFree( p_buffer );
1388 vlc_memset( BUFFER.mData, 0, BUFFER.mDataByteSize );
1395 /*****************************************************************************
1396 * HardwareListener: Warns us of changes in the list of registered devices
1397 *****************************************************************************/
1398 static OSStatus HardwareListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1400 OSStatus err = noErr;
1401 audio_output_t *p_aout = (audio_output_t *)inClientData;
1402 VLC_UNUSED(inObjectID);
1404 for ( unsigned int i = 0; i < inNumberAddresses; i++ )
1406 if( inAddresses[i].mSelector == kAudioHardwarePropertyDevices )
1408 /* something changed in the list of devices */
1409 /* We trigger the audio-device's aout_ChannelsRestart callback */
1410 var_TriggerCallback( p_aout, "audio-device" );
1411 var_Destroy( p_aout, "audio-device" );
1418 /*****************************************************************************
1420 *****************************************************************************/
1421 static OSStatus StreamListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1423 OSStatus err = noErr;
1424 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1426 VLC_UNUSED(inObjectID);
1428 for( unsigned int i = 0; i < inNumberAddresses; i++ )
1430 if( inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat )
1432 vlc_mutex_lock( &w->lock );
1433 vlc_cond_signal( &w->cond );
1434 vlc_mutex_unlock( &w->lock );
1441 /*****************************************************************************
1442 * AudioDeviceCallback: Callback triggered when the audio-device variable is changed
1443 *****************************************************************************/
1444 static int AudioDeviceCallback( vlc_object_t *p_this, const char *psz_variable,
1445 vlc_value_t old_val, vlc_value_t new_val, void *param )
1447 audio_output_t *p_aout = (audio_output_t *)p_this;
1448 var_Set( p_aout->p_libvlc, "macosx-audio-device", new_val );
1449 msg_Dbg( p_aout, "Set Device: %#"PRIx64, new_val.i_int );
1450 return aout_ChannelsRestart( p_this, psz_variable, old_val, new_val, param );
1454 /*****************************************************************************
1455 * VolumeSet: Implements pf_volume_set(). Update the CoreAudio AU volume immediately.
1456 *****************************************************************************/
1457 static int VolumeSet( audio_output_t * p_aout, float volume, bool mute )
1459 struct aout_sys_t *p_sys = p_aout->sys;
1465 volume = volume * volume * volume; // cubic mapping from output.c
1467 /* Set volume for output unit */
1468 ostatus = AudioUnitSetParameter( p_sys->au_unit,
1469 kHALOutputParam_Volume,
1470 kAudioUnitScope_Global,