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 * );
123 /*****************************************************************************
125 *****************************************************************************/
126 #define ADEV_TEXT N_("Audio Device")
127 #define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
128 "audio device, as listed in your 'Audio Device' menu. This device will " \
129 "then be used by default for audio playback.")
132 set_shortname( "auhal" )
133 set_description( N_("HAL AudioUnit output") )
134 set_capability( "audio output", 101 )
135 set_category( CAT_AUDIO )
136 set_subcategory( SUBCAT_AUDIO_AOUT )
137 set_callbacks( Open, Close )
138 add_integer( "macosx-audio-device", 0, ADEV_TEXT, ADEV_LONGTEXT, false )
141 /*****************************************************************************
142 * Open: open macosx audio output
143 *****************************************************************************/
144 static int Open( vlc_object_t * p_this )
146 OSStatus err = noErr;
147 UInt32 i_param_size = 0;
148 struct aout_sys_t *p_sys = NULL;
150 audio_output_t *p_aout = (audio_output_t *)p_this;
152 /* Use int here, to match kAudioDevicePropertyDeviceIsAlive
156 /* Allocate structure */
157 p_aout->sys = malloc( sizeof( aout_sys_t ) );
158 if( p_aout->sys == NULL )
162 p_sys->i_default_dev = 0;
163 p_sys->i_selected_dev = 0;
164 p_sys->i_devices = 0;
165 p_sys->b_digital = false;
166 p_sys->au_component = NULL;
167 p_sys->au_unit = NULL;
168 p_sys->clock_diff = (mtime_t) 0;
169 p_sys->i_read_bytes = 0;
170 p_sys->i_total_bytes = 0;
171 p_sys->i_hog_pid = -1;
172 p_sys->i_stream_id = 0;
173 p_sys->i_stream_index = -1;
174 p_sys->b_revert = false;
175 p_sys->b_changed_mixing = false;
176 memset( p_sys->p_remainder_buffer, 0, sizeof(uint8_t) * BUFSIZE );
178 p_aout->pf_play = aout_PacketPlay;
179 p_aout->pf_pause = aout_PacketPause;
180 p_aout->pf_flush = aout_PacketFlush;
182 aout_FormatPrint( p_aout, "VLC is looking for:", &p_aout->format );
184 /* Persistent device variable */
185 if( var_Type( p_aout->p_libvlc, "macosx-audio-device" ) == 0 )
187 var_Create( p_aout->p_libvlc, "macosx-audio-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
190 /* Build a list of devices */
191 if( var_Type( p_aout, "audio-device" ) == 0 )
196 /* What device do we want? */
197 if( var_Get( p_aout, "audio-device", &val ) < 0 )
199 msg_Err( p_aout, "audio-device var does not exist. device probe failed." );
203 p_sys->i_selected_dev = val.i_int & ~AOUT_VAR_SPDIF_FLAG; /* remove SPDIF flag to get the true DeviceID */
204 bool b_supports_digital = ( val.i_int & AOUT_VAR_SPDIF_FLAG );
205 if( b_supports_digital )
206 msg_Dbg( p_aout, "audio device supports digital output" );
208 /* Check if the desired device is alive and usable */
209 /* TODO: add a callback to the device to alert us if the device dies */
210 i_param_size = sizeof( b_alive );
211 AudioObjectPropertyAddress audioDeviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive,
212 kAudioDevicePropertyScopeOutput,
213 kAudioObjectPropertyElementMaster };
214 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceAliveAddress, 0, NULL, &i_param_size, &b_alive );
218 /* Be tolerant, only give a warning here */
219 msg_Warn( p_aout, "could not check whether device [0x%x] is alive: %4.4s",
220 (unsigned int)p_sys->i_selected_dev, (char *)&err );
226 msg_Warn( p_aout, "selected audio device is not alive, switching to default device" );
227 p_sys->i_selected_dev = p_sys->i_default_dev;
230 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
231 kAudioDevicePropertyScopeOutput,
232 kAudioObjectPropertyElementMaster };
233 i_param_size = sizeof( p_sys->i_hog_pid );
234 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, &i_param_size, &p_sys->i_hog_pid );
237 /* This is not a fatal error. Some drivers simply don't support this property */
238 msg_Warn( p_aout, "could not check whether device is hogged: %4.4s",
240 p_sys->i_hog_pid = -1;
243 if( p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid() )
245 msg_Err( p_aout, "Selected audio device is exclusively in use by another program." );
246 dialog_Fatal( p_aout, _("Audio output failed"), "%s",
247 _("The selected audio output device is exclusively in "
248 "use by another program.") );
252 /* Check for Digital mode or Analog output mode */
253 if( AOUT_FMT_SPDIF( &p_aout->format ) && b_supports_digital )
255 if( OpenSPDIF( p_aout ) )
257 msg_Dbg( p_aout, "digital output successfully opened" );
263 if( OpenAnalog( p_aout ) )
265 msg_Dbg( p_aout, "analog output successfully opened" );
271 /* If we reach this, this aout has failed */
272 msg_Err( p_aout, "opening the auhal output failed" );
273 var_Destroy( p_aout, "audio-device" );
278 /*****************************************************************************
279 * Open: open and setup a HAL AudioUnit to do analog (multichannel) audio output
280 *****************************************************************************/
281 static int OpenAnalog( audio_output_t *p_aout )
283 struct aout_sys_t *p_sys = p_aout->sys;
284 OSStatus err = noErr;
285 UInt32 i_param_size = 0;
287 ComponentDescription desc;
288 AudioStreamBasicDescription DeviceFormat;
289 AudioChannelLayout *layout;
290 AudioChannelLayout new_layout;
291 AURenderCallbackStruct input;
293 /* Lets go find our Component */
294 desc.componentType = kAudioUnitType_Output;
295 desc.componentSubType = kAudioUnitSubType_HALOutput;
296 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
297 desc.componentFlags = 0;
298 desc.componentFlagsMask = 0;
300 p_sys->au_component = FindNextComponent( NULL, &desc );
301 if( p_sys->au_component == NULL )
303 msg_Warn( p_aout, "we cannot find our HAL component" );
307 err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
310 msg_Warn( p_aout, "we cannot open our HAL component" );
314 /* Set the device we will use for this output unit */
315 err = AudioUnitSetProperty( p_sys->au_unit,
316 kAudioOutputUnitProperty_CurrentDevice,
317 kAudioUnitScope_Global,
319 &p_sys->i_selected_dev,
320 sizeof( AudioDeviceID ));
324 msg_Warn( p_aout, "we cannot select the audio device" );
328 /* Get the current format */
329 i_param_size = sizeof(AudioStreamBasicDescription);
331 err = AudioUnitGetProperty( p_sys->au_unit,
332 kAudioUnitProperty_StreamFormat,
333 kAudioUnitScope_Input,
338 if( err != noErr ) return false;
339 else msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is: ", DeviceFormat ) );
341 /* Get the channel layout of the device side of the unit (vlc -> unit -> device) */
342 err = AudioUnitGetPropertyInfo( p_sys->au_unit,
343 kAudioDevicePropertyPreferredChannelLayout,
344 kAudioUnitScope_Output,
351 layout = (AudioChannelLayout *)malloc( i_param_size);
353 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
354 kAudioDevicePropertyPreferredChannelLayout,
355 kAudioUnitScope_Output,
360 /* We need to "fill out" the ChannelLayout, because there are multiple ways that it can be set */
361 if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
363 /* bitmap defined channellayout */
364 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
365 sizeof( UInt32), &layout->mChannelBitmap,
369 else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
371 /* layouttags defined channellayout */
372 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
373 sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
378 msg_Dbg( p_aout, "layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
380 /* Initialize the VLC core channel count */
381 p_aout->format.i_physical_channels = 0;
382 i_original = p_aout->format.i_original_channels & AOUT_CHAN_PHYSMASK;
384 if( i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2 )
386 /* We only need Mono or cannot output more than 1 channel */
387 p_aout->format.i_physical_channels = AOUT_CHAN_CENTER;
389 else if( i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3 )
391 /* We only need Stereo or cannot output more than 2 channels */
392 p_aout->format.i_physical_channels = AOUT_CHAN_RIGHT | AOUT_CHAN_LEFT;
396 /* We want more than stereo and we can do that */
397 for( unsigned int i = 0; i < layout->mNumberChannelDescriptions; i++ )
399 msg_Dbg( p_aout, "this is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
401 switch( layout->mChannelDescriptions[i].mChannelLabel )
403 case kAudioChannelLabel_Left:
404 p_aout->format.i_physical_channels |= AOUT_CHAN_LEFT;
406 case kAudioChannelLabel_Right:
407 p_aout->format.i_physical_channels |= AOUT_CHAN_RIGHT;
409 case kAudioChannelLabel_Center:
410 p_aout->format.i_physical_channels |= AOUT_CHAN_CENTER;
412 case kAudioChannelLabel_LFEScreen:
413 p_aout->format.i_physical_channels |= AOUT_CHAN_LFE;
415 case kAudioChannelLabel_LeftSurround:
416 p_aout->format.i_physical_channels |= AOUT_CHAN_REARLEFT;
418 case kAudioChannelLabel_RightSurround:
419 p_aout->format.i_physical_channels |= AOUT_CHAN_REARRIGHT;
421 case kAudioChannelLabel_RearSurroundLeft:
422 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
424 case kAudioChannelLabel_RearSurroundRight:
425 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
427 case kAudioChannelLabel_CenterSurround:
428 p_aout->format.i_physical_channels |= AOUT_CHAN_REARCENTER;
431 msg_Warn( p_aout, "unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
434 if( p_aout->format.i_physical_channels == 0 )
436 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
437 msg_Err( p_aout, "You should configure your speaker layout with Audio Midi Setup Utility in /Applications/Utilities. Now using Stereo mode." );
438 dialog_Fatal( p_aout, _("Audio device is not configured"), "%s",
439 _("You should configure your speaker layout with "
440 "the \"Audio Midi Setup\" utility in /Applications/"
441 "Utilities. Stereo mode is being used now.") );
448 msg_Warn( p_aout, "this driver does not support kAudioDevicePropertyPreferredChannelLayout. BAD DRIVER AUTHOR !!!" );
449 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
452 msg_Dbg( p_aout, "selected %d physical channels for device output", aout_FormatNbChannels( &p_aout->format ) );
453 msg_Dbg( p_aout, "VLC will output: %s", aout_FormatPrintChannels( &p_aout->format ));
455 memset (&new_layout, 0, sizeof(new_layout));
456 switch( aout_FormatNbChannels( &p_aout->format ) )
459 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
462 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
465 if( p_aout->format.i_physical_channels & AOUT_CHAN_CENTER )
467 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
469 else if( p_aout->format.i_physical_channels & AOUT_CHAN_LFE )
471 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
475 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_LFE ) )
477 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
479 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT ) )
481 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
483 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER ) )
485 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
489 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER ) )
491 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
493 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
495 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
499 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
501 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
505 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_AudioUnit_6_0; // L R Ls Rs C Cs
509 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
510 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
513 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
514 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
518 /* Set up the format to be used */
519 DeviceFormat.mSampleRate = p_aout->format.i_rate;
520 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
522 /* We use float 32. It's the best supported format by both VLC and Coreaudio */
523 p_aout->format.i_format = VLC_CODEC_FL32;
524 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
525 DeviceFormat.mBitsPerChannel = 32;
526 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->format );
528 /* Calculate framesizes and stuff */
529 DeviceFormat.mFramesPerPacket = 1;
530 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
531 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
533 /* Set the desired format */
534 i_param_size = sizeof(AudioStreamBasicDescription);
535 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
536 kAudioUnitProperty_StreamFormat,
537 kAudioUnitScope_Input,
542 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
544 /* Retrieve actual format */
545 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
546 kAudioUnitProperty_StreamFormat,
547 kAudioUnitScope_Input,
552 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
554 /* Do the last VLC aout setups */
555 aout_FormatPrepare( &p_aout->format );
556 aout_PacketInit( p_aout, &p_sys->packet, FRAMESIZE );
557 aout_VolumeSoftInit( p_aout );
559 /* set the IOproc callback */
560 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
561 input.inputProcRefCon = p_aout;
563 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
564 kAudioUnitProperty_SetRenderCallback,
565 kAudioUnitScope_Input,
566 0, &input, sizeof( input ) ) );
568 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
569 input.inputProcRefCon = p_aout;
571 /* Set the new_layout as the layout VLC will use to feed the AU unit */
572 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
573 kAudioUnitProperty_AudioChannelLayout,
574 kAudioUnitScope_Input,
575 0, &new_layout, sizeof(new_layout) ) );
577 if( new_layout.mNumberChannelDescriptions > 0 )
578 free( new_layout.mChannelDescriptions );
581 verify_noerr( AudioUnitInitialize(p_sys->au_unit) );
583 /* Find the difference between device clock and mdate clock */
584 p_sys->clock_diff = - (mtime_t)
585 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
586 p_sys->clock_diff += mdate();
589 verify_noerr( AudioOutputUnitStart(p_sys->au_unit) );
594 /*****************************************************************************
595 * Setup a encoded digital stream (SPDIF)
596 *****************************************************************************/
597 static int OpenSPDIF( audio_output_t * p_aout )
599 struct aout_sys_t *p_sys = p_aout->sys;
600 OSStatus err = noErr;
601 UInt32 i_param_size = 0, b_mix = 0;
602 Boolean b_writeable = false;
603 AudioStreamID *p_streams = NULL;
606 /* Start doing the SPDIF setup proces */
607 p_sys->b_digital = true;
610 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
611 i_param_size = sizeof( p_sys->i_hog_pid );
612 p_sys->i_hog_pid = getpid() ;
614 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
618 msg_Err( p_aout, "failed to set hogmode: [%4.4s]", (char *)&err );
622 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
624 if (AudioObjectHasProperty(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress))
626 /* Set mixable to false if we are allowed to */
627 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
628 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size );
629 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
631 if( err == noErr && b_writeable )
634 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
635 p_sys->b_changed_mixing = true;
640 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
645 /* Get a list of all the streams on this device */
646 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
647 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size );
650 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
654 i_streams = i_param_size / sizeof( AudioStreamID );
655 p_streams = (AudioStreamID *)malloc( i_param_size );
656 if( p_streams == NULL )
659 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams );
663 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
668 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
669 for( unsigned i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++ )
671 /* Find a stream with a cac3 stream */
672 AudioStreamRangedDescription *p_format_list = NULL;
674 bool b_digital = false;
676 /* Retrieve all the stream formats supported by each output stream */
677 err = AudioObjectGetPropertyDataSize( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size );
680 msg_Err( p_aout, "OpenSPDIF: could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
684 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
685 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
686 if( p_format_list == NULL )
689 err = AudioObjectGetPropertyData( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
692 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
693 free( p_format_list );
697 /* Check if one of the supported formats is a digital format */
698 for( int j = 0; j < i_formats; j++ )
700 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
701 p_format_list[j].mFormat.mFormatID == 'iac3' ||
702 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
703 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3 )
712 /* if this stream supports a digital (cac3) format, then go set it. */
713 int i_requested_rate_format = -1;
714 int i_current_rate_format = -1;
715 int i_backup_rate_format = -1;
717 p_sys->i_stream_id = p_streams[i];
718 p_sys->i_stream_index = i;
720 if( !p_sys->b_revert )
722 AudioObjectPropertyAddress currentPhysicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
723 /* Retrieve the original format of this stream first if not done so already */
724 i_param_size = sizeof( p_sys->sfmt_revert );
725 err = AudioObjectGetPropertyData( p_sys->i_stream_id, ¤tPhysicalFormatAddress, 0, NULL, &i_param_size, &p_sys->sfmt_revert );
728 msg_Err( p_aout, "could not retrieve the original streamformat: [%4.4s]", (char *)&err );
731 p_sys->b_revert = true;
734 for( int j = 0; j < i_formats; j++ )
736 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
737 p_format_list[j].mFormat.mFormatID == 'iac3' ||
738 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
739 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3 )
741 if( p_format_list[j].mFormat.mSampleRate == p_aout->format.i_rate )
743 i_requested_rate_format = j;
746 else if( p_format_list[j].mFormat.mSampleRate == p_sys->sfmt_revert.mSampleRate )
748 i_current_rate_format = j;
752 if( i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate )
753 i_backup_rate_format = j;
759 if( i_requested_rate_format >= 0 ) /* We prefer to output at the samplerate of the original audio */
760 p_sys->stream_format = p_format_list[i_requested_rate_format].mFormat;
761 else if( i_current_rate_format >= 0 ) /* If not possible, we will try to use the current samplerate of the device */
762 p_sys->stream_format = p_format_list[i_current_rate_format].mFormat;
763 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) */
765 free( p_format_list );
769 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "original stream format: ", p_sys->sfmt_revert ) );
771 if( !AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->stream_format ) )
774 /* Set the format flags */
775 if( p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian )
776 p_aout->format.i_format = VLC_CODEC_SPDIFB;
778 p_aout->format.i_format = VLC_CODEC_SPDIFL;
779 p_aout->format.i_bytes_per_frame = AOUT_SPDIF_SIZE;
780 p_aout->format.i_frame_length = A52_FRAME_NB;
781 p_aout->format.i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
782 aout_FormatPrepare( &p_aout->format );
783 aout_PacketInit( p_aout, &p_sys->packet, A52_FRAME_NB );
784 aout_VolumeNoneInit( p_aout );
786 /* Add IOProc callback */
787 err = AudioDeviceCreateIOProcID( p_sys->i_selected_dev,
788 (AudioDeviceIOProc)RenderCallbackSPDIF,
793 msg_Err( p_aout, "AudioDeviceCreateIOProcID failed: [%4.4s]", (char *)&err );
794 aout_PacketDestroy (p_aout);
798 /* Check for the difference between the Device clock and mdate */
799 p_sys->clock_diff = - (mtime_t)
800 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
801 p_sys->clock_diff += mdate();
804 err = AudioDeviceStart( p_sys->i_selected_dev, p_sys->i_procID );
807 msg_Err( p_aout, "AudioDeviceStart failed: [%4.4s]", (char *)&err );
809 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
813 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
815 aout_PacketDestroy (p_aout);
823 /*****************************************************************************
824 * Close: Close HAL AudioUnit
825 *****************************************************************************/
826 static void Close( vlc_object_t * p_this )
828 audio_output_t *p_aout = (audio_output_t *)p_this;
829 struct aout_sys_t *p_sys = p_aout->sys;
830 OSStatus err = noErr;
831 UInt32 i_param_size = 0;
835 verify_noerr( AudioOutputUnitStop( p_sys->au_unit ) );
836 verify_noerr( AudioUnitUninitialize( p_sys->au_unit ) );
837 verify_noerr( CloseComponent( p_sys->au_unit ) );
840 if( p_sys->b_digital )
843 err = AudioDeviceStop( p_sys->i_selected_dev,
847 msg_Err( p_aout, "AudioDeviceStop failed: [%4.4s]", (char *)&err );
850 /* Remove IOProc callback */
851 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
855 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
858 if( p_sys->b_revert )
860 AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->sfmt_revert );
863 if( p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3 )
866 Boolean b_writeable = false;
867 /* Revert mixable to true if we are allowed to */
868 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
869 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
870 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
872 if( err == noErr && b_writeable )
874 msg_Dbg( p_aout, "mixable is: %d", b_mix );
876 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
881 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
886 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
887 err = AudioObjectRemovePropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, NULL );
891 msg_Err( p_aout, "AudioHardwareRemovePropertyListener failed: [%4.4s]", (char *)&err );
894 if( p_sys->i_hog_pid == getpid() )
896 p_sys->i_hog_pid = -1;
897 i_param_size = sizeof( p_sys->i_hog_pid );
898 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
899 kAudioDevicePropertyScopeOutput,
900 kAudioObjectPropertyElementMaster };
901 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
902 if( err != noErr ) msg_Err( p_aout, "Could not release hogmode: [%4.4s]", (char *)&err );
905 aout_PacketDestroy( p_aout );
909 /*****************************************************************************
910 * Probe: Check which devices the OS has, and add them to our audio-device menu
911 *****************************************************************************/
912 static void Probe( audio_output_t * p_aout )
914 OSStatus err = noErr;
915 UInt32 i_param_size = 0;
916 AudioDeviceID devid_def = 0;
917 AudioDeviceID *p_devices = NULL;
918 vlc_value_t val, text;
920 struct aout_sys_t *p_sys = p_aout->sys;
922 /* Get number of devices */
923 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
924 err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size);
927 msg_Err( p_aout, "Could not get number of devices: [%s]", (char *)&err );
931 p_sys->i_devices = i_param_size / sizeof( AudioDeviceID );
933 if( p_sys->i_devices < 1 )
935 msg_Err( p_aout, "No audio output devices were found." );
938 msg_Dbg( p_aout, "found %u audio device(s)", (unsigned)p_sys->i_devices );
940 /* Allocate DeviceID array */
941 p_devices = (AudioDeviceID*)malloc( sizeof(AudioDeviceID) * p_sys->i_devices );
942 if( p_devices == NULL )
945 /* Populate DeviceID array */
946 err = AudioObjectGetPropertyData( kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size, p_devices );
949 msg_Err( p_aout, "could not get the device IDs: [%s]", (char *)&err );
953 /* Find the ID of the default Device */
954 AudioObjectPropertyAddress defaultDeviceAddress = { kAudioHardwarePropertyDefaultOutputDevice, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
955 i_param_size = sizeof( AudioDeviceID );
956 err= AudioObjectGetPropertyData( kAudioObjectSystemObject, &defaultDeviceAddress, 0, NULL, &i_param_size, &devid_def );
959 msg_Err( p_aout, "could not get default audio device: [%s]", (char *)&err );
962 p_sys->i_default_dev = devid_def;
964 var_Create( p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE );
965 text.psz_string = (char*)_("Audio Device");
966 var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
968 AudioObjectPropertyAddress deviceNameAddress = { kAudioDevicePropertyDeviceName, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
970 for( unsigned int i = 0; i < p_sys->i_devices; i++ )
975 /* Retrieve the length of the device name */
976 err = AudioObjectGetPropertyDataSize( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size );
977 if( err ) goto error;
979 /* Retrieve the name of the device */
980 psz_name = (char *)malloc( i_param_size );
981 err = AudioObjectGetPropertyData( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size, psz_name );
982 if( err ) goto error;
984 msg_Dbg( p_aout, "DevID: %u DevName: %s", (unsigned)p_devices[i], psz_name );
986 if( !AudioDeviceHasOutput( p_devices[i]) )
988 msg_Dbg( p_aout, "this device is INPUT only. skipping..." );
993 /* Add the menu entries */
994 val.i_int = (int)p_devices[i];
995 text.psz_string = psz_name;
996 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
997 text.psz_string = NULL;
998 if( p_sys->i_default_dev == p_devices[i] )
1000 /* The default device is the selected device normally */
1001 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1002 var_Set( p_aout, "audio-device", val );
1005 if( AudioDeviceSupportsDigital( p_aout, p_devices[i] ) )
1007 val.i_int = (int)p_devices[i] | AOUT_VAR_SPDIF_FLAG;
1008 if( asprintf( &text.psz_string, _("%s (Encoded Output)"), psz_name ) != -1 )
1010 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1011 free( text.psz_string );
1012 if( p_sys->i_default_dev == p_devices[i]
1013 && var_InheritBool( p_aout, "spdif" ) )
1015 /* We selected to prefer SPDIF output if available
1016 * then this "dummy" entry should be selected */
1017 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1018 var_Set( p_aout, "audio-device", val );
1026 /* If a device is already "preselected", then use this device */
1027 var_Get( p_aout->p_libvlc, "macosx-audio-device", &val );
1030 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1031 var_Set( p_aout, "audio-device", val );
1034 /* If we change the device we want to use, we should renegotiate the audio chain */
1035 var_AddCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
1037 /* Attach a Listener so that we are notified of a change in the Device setup */
1038 err = AudioObjectAddPropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, (void *)p_aout );
1046 msg_Warn( p_aout, "audio device already in use" );
1051 /*****************************************************************************
1052 * AudioDeviceHasOutput: Checks if the Device actually provides any outputs at all
1053 *****************************************************************************/
1054 static int AudioDeviceHasOutput( AudioDeviceID i_dev_id )
1058 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1059 verify_noerr( AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &dataSize ) );
1060 if (dataSize == 0) return FALSE;
1065 /*****************************************************************************
1066 * AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
1067 *****************************************************************************/
1068 static int AudioDeviceSupportsDigital( audio_output_t *p_aout, AudioDeviceID i_dev_id )
1070 OSStatus err = noErr;
1071 UInt32 i_param_size = 0;
1072 AudioStreamID *p_streams = NULL;
1074 bool b_return = false;
1076 /* Retrieve all the output streams */
1077 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1078 err = AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &i_param_size );
1081 msg_Err( p_aout, "could not get number of streams: [%s] (%i)", (char *)&err, (int32_t)err );
1085 i_streams = i_param_size / sizeof( AudioStreamID );
1086 p_streams = (AudioStreamID *)malloc( i_param_size );
1087 if( p_streams == NULL )
1090 err = AudioObjectGetPropertyData( i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams );
1093 msg_Err( p_aout, "could not get list of streams: [%s]", (char *)&err );
1097 for( int i = 0; i < i_streams; i++ )
1099 if( AudioStreamSupportsDigital( p_aout, p_streams[i] ) )
1107 /*****************************************************************************
1108 * AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
1109 *****************************************************************************/
1110 static int AudioStreamSupportsDigital( audio_output_t *p_aout, AudioStreamID i_stream_id )
1112 OSStatus err = noErr;
1113 UInt32 i_param_size = 0;
1114 AudioStreamRangedDescription *p_format_list = NULL;
1116 bool b_return = false;
1118 /* Retrieve all the stream formats supported by each output stream */
1119 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1120 err = AudioObjectGetPropertyDataSize( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size );
1123 msg_Err( p_aout, "could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
1127 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
1128 msg_Dbg( p_aout, "found %i stream formats", i_formats );
1130 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
1131 if( p_format_list == NULL )
1134 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
1137 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
1138 free( p_format_list);
1139 p_format_list = NULL;
1143 for( int i = 0; i < i_formats; i++ )
1145 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "supported format: ", p_format_list[i].mFormat ) );
1147 if( p_format_list[i].mFormat.mFormatID == 'IAC3' ||
1148 p_format_list[i].mFormat.mFormatID == 'iac3' ||
1149 p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 ||
1150 p_format_list[i].mFormat.mFormatID == kAudioFormatAC3 )
1156 free( p_format_list );
1160 /*****************************************************************************
1161 * AudioStreamChangeFormat: Change i_stream_id to change_format
1162 *****************************************************************************/
1163 static int AudioStreamChangeFormat( audio_output_t *p_aout, AudioStreamID i_stream_id, AudioStreamBasicDescription change_format )
1165 OSStatus err = noErr;
1166 UInt32 i_param_size = 0;
1168 AudioObjectPropertyAddress physicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1170 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
1172 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "setting stream format: ", change_format ) );
1174 /* Condition because SetProperty is asynchronious */
1175 vlc_cond_init( &w.cond );
1176 vlc_mutex_init( &w.lock );
1177 vlc_mutex_lock( &w.lock );
1179 /* Install the callback */
1180 err = AudioObjectAddPropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1183 msg_Err( p_aout, "AudioObjectAddPropertyListener for kAudioStreamPropertyPhysicalFormat failed: [%4.4s]", (char *)&err );
1187 /* change the format */
1188 err = AudioObjectSetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, sizeof( AudioStreamBasicDescription ),
1192 msg_Err( p_aout, "could not set the stream format: [%4.4s]", (char *)&err );
1196 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
1197 * it is also not atomic in its behaviour.
1198 * Therefore we check 5 times before we really give up.
1199 * FIXME: failing isn't actually implemented yet. */
1200 for( int i = 0; i < 5; i++ )
1202 AudioStreamBasicDescription actual_format;
1203 mtime_t timeout = mdate() + 500000;
1205 if( vlc_cond_timedwait( &w.cond, &w.lock, timeout ) )
1207 msg_Dbg( p_aout, "reached timeout" );
1210 i_param_size = sizeof( AudioStreamBasicDescription );
1211 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, &i_param_size, &actual_format );
1213 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "actual format in use: ", actual_format ) );
1214 if( actual_format.mSampleRate == change_format.mSampleRate &&
1215 actual_format.mFormatID == change_format.mFormatID &&
1216 actual_format.mFramesPerPacket == change_format.mFramesPerPacket )
1218 /* The right format is now active */
1221 /* We need to check again */
1224 /* Removing the property listener */
1225 err = AudioObjectRemovePropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1228 msg_Err( p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err );
1232 /* Destroy the lock and condition */
1233 vlc_mutex_unlock( &w.lock );
1234 vlc_mutex_destroy( &w.lock );
1235 vlc_cond_destroy( &w.cond );
1240 /*****************************************************************************
1241 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1242 * us to provide some more audio data.
1243 * Don't print anything during normal playback, calling blocking function from
1244 * this callback is not allowed.
1245 *****************************************************************************/
1246 static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
1247 AudioUnitRenderActionFlags *ioActionFlags,
1248 const AudioTimeStamp *inTimeStamp,
1249 unsigned int inBusNumber,
1250 unsigned int inNumberFrames,
1251 AudioBufferList *ioData )
1253 AudioTimeStamp host_time;
1254 mtime_t current_date = 0;
1255 uint32_t i_mData_bytes = 0;
1257 audio_output_t * p_aout = (audio_output_t *)_p_aout;
1258 struct aout_sys_t * p_sys = p_aout->sys;
1260 VLC_UNUSED(ioActionFlags);
1261 VLC_UNUSED(inBusNumber);
1262 VLC_UNUSED(inNumberFrames);
1264 host_time.mFlags = kAudioTimeStampHostTimeValid;
1265 AudioDeviceTranslateTime( p_sys->i_selected_dev, inTimeStamp, &host_time );
1267 /* Check for the difference between the Device clock and mdate */
1268 p_sys->clock_diff = - (mtime_t)
1269 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
1270 p_sys->clock_diff += mdate();
1272 current_date = p_sys->clock_diff +
1273 AudioConvertHostTimeToNanos( host_time.mHostTime ) / 1000;
1274 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1276 if( ioData == NULL && ioData->mNumberBuffers < 1 )
1278 msg_Err( p_aout, "no iodata or buffers");
1281 if( ioData->mNumberBuffers > 1 )
1282 msg_Err( p_aout, "well this is weird. seems like there is more than one buffer..." );
1285 if( p_sys->i_total_bytes > 0 )
1287 i_mData_bytes = __MIN( p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize );
1288 vlc_memcpy( ioData->mBuffers[0].mData,
1289 &p_sys->p_remainder_buffer[p_sys->i_read_bytes],
1291 p_sys->i_read_bytes += i_mData_bytes;
1292 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1293 ( i_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1295 if( p_sys->i_read_bytes >= p_sys->i_total_bytes )
1296 p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
1299 while( i_mData_bytes < ioData->mBuffers[0].mDataByteSize )
1301 /* We don't have enough data yet */
1302 aout_buffer_t * p_buffer;
1303 p_buffer = aout_PacketNext( p_aout, current_date );
1305 if( p_buffer != NULL )
1307 uint32_t i_second_mData_bytes = __MIN( p_buffer->i_buffer, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1309 vlc_memcpy( (uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes,
1310 p_buffer->p_buffer, i_second_mData_bytes );
1311 i_mData_bytes += i_second_mData_bytes;
1313 if( i_mData_bytes >= ioData->mBuffers[0].mDataByteSize )
1315 p_sys->i_total_bytes = p_buffer->i_buffer - i_second_mData_bytes;
1316 vlc_memcpy( p_sys->p_remainder_buffer,
1317 &p_buffer->p_buffer[i_second_mData_bytes],
1318 p_sys->i_total_bytes );
1319 aout_BufferFree( p_buffer );
1324 /* update current_date */
1325 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1326 ( i_second_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1328 aout_BufferFree( p_buffer );
1332 vlc_memset( (uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes,
1333 0,ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1334 i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
1340 /*****************************************************************************
1341 * RenderCallbackSPDIF: callback for SPDIF audio output
1342 *****************************************************************************/
1343 static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
1344 const AudioTimeStamp * inNow,
1345 const void * inInputData,
1346 const AudioTimeStamp * inInputTime,
1347 AudioBufferList * outOutputData,
1348 const AudioTimeStamp * inOutputTime,
1349 void * threadGlobals )
1351 aout_buffer_t * p_buffer;
1352 mtime_t current_date;
1354 audio_output_t * p_aout = (audio_output_t *)threadGlobals;
1355 struct aout_sys_t * p_sys = p_aout->sys;
1357 VLC_UNUSED(inDevice);
1358 VLC_UNUSED(inInputData);
1359 VLC_UNUSED(inInputTime);
1361 /* Check for the difference between the Device clock and mdate */
1362 p_sys->clock_diff = - (mtime_t)
1363 AudioConvertHostTimeToNanos( inNow->mHostTime ) / 1000;
1364 p_sys->clock_diff += mdate();
1366 current_date = p_sys->clock_diff +
1367 AudioConvertHostTimeToNanos( inOutputTime->mHostTime ) / 1000;
1368 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1370 p_buffer = aout_PacketNext( p_aout, current_date );
1372 #define BUFFER outOutputData->mBuffers[p_sys->i_stream_index]
1373 if( p_buffer != NULL )
1375 if( (int)BUFFER.mDataByteSize != (int)p_buffer->i_buffer)
1376 msg_Warn( p_aout, "bytesize: %d nb_bytes: %d", (int)BUFFER.mDataByteSize, (int)p_buffer->i_buffer );
1378 /* move data into output data buffer */
1379 vlc_memcpy( BUFFER.mData, p_buffer->p_buffer, p_buffer->i_buffer );
1380 aout_BufferFree( p_buffer );
1384 vlc_memset( BUFFER.mData, 0, BUFFER.mDataByteSize );
1391 /*****************************************************************************
1392 * HardwareListener: Warns us of changes in the list of registered devices
1393 *****************************************************************************/
1394 static OSStatus HardwareListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1396 OSStatus err = noErr;
1397 audio_output_t *p_aout = (audio_output_t *)inClientData;
1398 VLC_UNUSED(inObjectID);
1400 for ( unsigned int i = 0; i < inNumberAddresses; i++ )
1402 if( inAddresses[i].mSelector == kAudioHardwarePropertyDevices )
1404 /* something changed in the list of devices */
1405 /* We trigger the audio-device's aout_ChannelsRestart callback */
1406 var_TriggerCallback( p_aout, "audio-device" );
1407 var_Destroy( p_aout, "audio-device" );
1414 /*****************************************************************************
1416 *****************************************************************************/
1417 static OSStatus StreamListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1419 OSStatus err = noErr;
1420 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1422 VLC_UNUSED(inObjectID);
1424 for( unsigned int i = 0; i < inNumberAddresses; i++ )
1426 if( inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat )
1428 vlc_mutex_lock( &w->lock );
1429 vlc_cond_signal( &w->cond );
1430 vlc_mutex_unlock( &w->lock );
1437 /*****************************************************************************
1438 * AudioDeviceCallback: Callback triggered when the audio-device variable is changed
1439 *****************************************************************************/
1440 static int AudioDeviceCallback( vlc_object_t *p_this, const char *psz_variable,
1441 vlc_value_t old_val, vlc_value_t new_val, void *param )
1443 audio_output_t *p_aout = (audio_output_t *)p_this;
1444 var_Set( p_aout->p_libvlc, "macosx-audio-device", new_val );
1445 msg_Dbg( p_aout, "Set Device: %#"PRIx64, new_val.i_int );
1446 return aout_ChannelsRestart( p_this, psz_variable, old_val, new_val, param );