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_*
37 #include <vlc_aout_intf.h>
39 #include <AudioUnit/AudioUnit.h> // AudioUnit
40 #include <CoreAudio/CoreAudio.h> // AudioDeviceID
41 #include <AudioToolbox/AudioFormat.h> // AudioFormatGetProperty
42 #include <CoreServices/CoreServices.h>
45 # define verify_noerr(a) assert((a) == noErr)
48 #define STREAM_FORMAT_MSG( pre, sfm ) \
49 pre "[%f][%4.4s][%u][%u][%u][%u][%u][%u]", \
50 sfm.mSampleRate, (char *)&sfm.mFormatID, \
51 (unsigned int)sfm.mFormatFlags, (unsigned int)sfm.mBytesPerPacket, \
52 (unsigned int)sfm.mFramesPerPacket, (unsigned int)sfm.mBytesPerFrame, \
53 (unsigned int)sfm.mChannelsPerFrame, (unsigned int)sfm.mBitsPerChannel
55 #define FRAMESIZE 2048
56 #define BUFSIZE (FRAMESIZE * 8) * 8
57 #define AOUT_VAR_SPDIF_FLAG 0xf00000
61 * - clean up the debug info
62 * - be better at changing stream setup or devices setup changes while playing.
66 /*****************************************************************************
67 * aout_sys_t: private audio output method descriptor
68 *****************************************************************************
69 * This structure is part of the audio output thread descriptor.
70 * It describes the CoreAudio specific properties of an output thread.
71 *****************************************************************************/
75 AudioDeviceID i_default_dev; /* DeviceID of defaultOutputDevice */
76 AudioDeviceID i_selected_dev; /* DeviceID of the selected device */
77 AudioDeviceIOProcID i_procID; /* DeviceID of current device */
78 UInt32 i_devices; /* Number of CoreAudio Devices */
79 bool b_digital; /* Are we running in digital mode? */
80 mtime_t clock_diff; /* Difference between VLC clock and Device clock */
83 Component au_component; /* The Audiocomponent we use */
84 AudioUnit au_unit; /* The AudioUnit we use */
85 uint8_t p_remainder_buffer[BUFSIZE];
86 uint32_t i_read_bytes;
87 uint32_t i_total_bytes;
89 /* CoreAudio SPDIF mode specific */
90 pid_t i_hog_pid; /* The keep the pid of our hog status */
91 AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
92 int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
93 AudioStreamBasicDescription stream_format; /* The format we changed the stream to */
94 AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
95 bool b_revert; /* Wether we need to revert the stream format */
96 bool b_changed_mixing; /* Wether we need to set the mixing mode back */
99 /*****************************************************************************
101 *****************************************************************************/
102 static int Open ( vlc_object_t * );
103 static int OpenAnalog ( audio_output_t * );
104 static int OpenSPDIF ( audio_output_t * );
105 static void Close ( vlc_object_t * );
107 static void Probe ( audio_output_t * );
109 static int AudioDeviceHasOutput ( AudioDeviceID );
110 static int AudioDeviceSupportsDigital( audio_output_t *, AudioDeviceID );
111 static int AudioStreamSupportsDigital( audio_output_t *, AudioStreamID );
112 static int AudioStreamChangeFormat ( audio_output_t *, AudioStreamID, AudioStreamBasicDescription );
114 static OSStatus RenderCallbackAnalog ( vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
115 unsigned int, unsigned int, AudioBufferList *);
116 static OSStatus RenderCallbackSPDIF ( AudioDeviceID, const AudioTimeStamp *, const void *, const AudioTimeStamp *,
117 AudioBufferList *, const AudioTimeStamp *, void * );
118 static OSStatus HardwareListener ( AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void * );
119 static OSStatus StreamListener ( AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void * );
120 static int AudioDeviceCallback ( vlc_object_t *, const char *,
121 vlc_value_t, vlc_value_t, void * );
123 static int VolumeSet ( audio_output_t *, float, bool );
126 /*****************************************************************************
128 *****************************************************************************/
129 #define ADEV_TEXT N_("Audio Device")
130 #define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
131 "audio device, as listed in your 'Audio Device' menu. This device will " \
132 "then be used by default for audio playback.")
135 set_shortname( "auhal" )
136 set_description( N_("HAL AudioUnit output") )
137 set_capability( "audio output", 101 )
138 set_category( CAT_AUDIO )
139 set_subcategory( SUBCAT_AUDIO_AOUT )
140 set_callbacks( Open, Close )
141 add_integer( "macosx-audio-device", 0, ADEV_TEXT, ADEV_LONGTEXT, false )
144 /*****************************************************************************
145 * Open: open macosx audio output
146 *****************************************************************************/
147 static int Open( vlc_object_t * p_this )
149 OSStatus err = noErr;
150 UInt32 i_param_size = 0;
151 struct aout_sys_t *p_sys = NULL;
153 audio_output_t *p_aout = (audio_output_t *)p_this;
155 /* Use int here, to match kAudioDevicePropertyDeviceIsAlive
159 /* Allocate structure */
160 p_aout->sys = malloc( sizeof( aout_sys_t ) );
161 if( p_aout->sys == NULL )
165 p_sys->i_default_dev = 0;
166 p_sys->i_selected_dev = 0;
167 p_sys->i_devices = 0;
168 p_sys->b_digital = false;
169 p_sys->au_component = NULL;
170 p_sys->au_unit = NULL;
171 p_sys->clock_diff = (mtime_t) 0;
172 p_sys->i_read_bytes = 0;
173 p_sys->i_total_bytes = 0;
174 p_sys->i_hog_pid = -1;
175 p_sys->i_stream_id = 0;
176 p_sys->i_stream_index = -1;
177 p_sys->b_revert = false;
178 p_sys->b_changed_mixing = false;
179 memset( p_sys->p_remainder_buffer, 0, sizeof(uint8_t) * BUFSIZE );
181 p_aout->pf_play = aout_PacketPlay;
182 p_aout->pf_pause = aout_PacketPause;
183 p_aout->pf_flush = aout_PacketFlush;
185 aout_FormatPrint( p_aout, "VLC is looking for:", &p_aout->format );
187 /* Persistent device variable */
188 if( var_Type( p_aout->p_libvlc, "macosx-audio-device" ) == 0 )
190 var_Create( p_aout->p_libvlc, "macosx-audio-device", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
193 /* Build a list of devices */
194 if( var_Type( p_aout, "audio-device" ) == 0 )
199 /* What device do we want? */
200 if( var_Get( p_aout, "audio-device", &val ) < 0 )
202 msg_Err( p_aout, "audio-device var does not exist. device probe failed." );
206 p_sys->i_selected_dev = val.i_int & ~AOUT_VAR_SPDIF_FLAG; /* remove SPDIF flag to get the true DeviceID */
207 bool b_supports_digital = ( val.i_int & AOUT_VAR_SPDIF_FLAG );
208 if( b_supports_digital )
209 msg_Dbg( p_aout, "audio device supports digital output" );
211 /* Check if the desired device is alive and usable */
212 /* TODO: add a callback to the device to alert us if the device dies */
213 i_param_size = sizeof( b_alive );
214 AudioObjectPropertyAddress audioDeviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive,
215 kAudioDevicePropertyScopeOutput,
216 kAudioObjectPropertyElementMaster };
217 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceAliveAddress, 0, NULL, &i_param_size, &b_alive );
221 /* Be tolerant, only give a warning here */
222 msg_Warn( p_aout, "could not check whether device [0x%x] is alive: %4.4s",
223 (unsigned int)p_sys->i_selected_dev, (char *)&err );
229 msg_Warn( p_aout, "selected audio device is not alive, switching to default device" );
230 p_sys->i_selected_dev = p_sys->i_default_dev;
233 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
234 kAudioDevicePropertyScopeOutput,
235 kAudioObjectPropertyElementMaster };
236 i_param_size = sizeof( p_sys->i_hog_pid );
237 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, &i_param_size, &p_sys->i_hog_pid );
240 /* This is not a fatal error. Some drivers simply don't support this property */
241 msg_Warn( p_aout, "could not check whether device is hogged: %4.4s",
243 p_sys->i_hog_pid = -1;
246 if( p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid() )
248 msg_Err( p_aout, "Selected audio device is exclusively in use by another program." );
249 dialog_Fatal( p_aout, _("Audio output failed"), "%s",
250 _("The selected audio output device is exclusively in "
251 "use by another program.") );
255 /* If we change the device we want to use, we should renegotiate the audio chain */
256 var_AddCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
258 /* Check for Digital mode or Analog output mode */
259 if( AOUT_FMT_SPDIF( &p_aout->format ) && b_supports_digital )
261 if( OpenSPDIF( p_aout ) )
263 msg_Dbg( p_aout, "digital output successfully opened" );
269 if( OpenAnalog( p_aout ) )
271 msg_Dbg( p_aout, "analog output successfully opened" );
277 /* If we reach this, this aout has failed */
278 msg_Err( p_aout, "opening the auhal output failed" );
279 var_Destroy( p_aout, "audio-device" );
284 /*****************************************************************************
285 * Open: open and setup a HAL AudioUnit to do analog (multichannel) audio output
286 *****************************************************************************/
287 static int OpenAnalog( audio_output_t *p_aout )
289 struct aout_sys_t *p_sys = p_aout->sys;
290 OSStatus err = noErr;
291 UInt32 i_param_size = 0;
293 ComponentDescription desc;
294 AudioStreamBasicDescription DeviceFormat;
295 AudioChannelLayout *layout;
296 AudioChannelLayout new_layout;
297 AURenderCallbackStruct input;
299 /* Lets go find our Component */
300 desc.componentType = kAudioUnitType_Output;
301 desc.componentSubType = kAudioUnitSubType_HALOutput;
302 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
303 desc.componentFlags = 0;
304 desc.componentFlagsMask = 0;
306 p_sys->au_component = FindNextComponent( NULL, &desc );
307 if( p_sys->au_component == NULL )
309 msg_Warn( p_aout, "we cannot find our HAL component" );
313 err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
316 msg_Warn( p_aout, "we cannot open our HAL component" );
320 /* Set the device we will use for this output unit */
321 err = AudioUnitSetProperty( p_sys->au_unit,
322 kAudioOutputUnitProperty_CurrentDevice,
323 kAudioUnitScope_Global,
325 &p_sys->i_selected_dev,
326 sizeof( AudioDeviceID ));
330 msg_Warn( p_aout, "we cannot select the audio device" );
334 /* Get the current format */
335 i_param_size = sizeof(AudioStreamBasicDescription);
337 err = AudioUnitGetProperty( p_sys->au_unit,
338 kAudioUnitProperty_StreamFormat,
339 kAudioUnitScope_Input,
344 if( err != noErr ) return false;
345 else msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is: ", DeviceFormat ) );
347 /* Get the channel layout of the device side of the unit (vlc -> unit -> device) */
348 err = AudioUnitGetPropertyInfo( p_sys->au_unit,
349 kAudioDevicePropertyPreferredChannelLayout,
350 kAudioUnitScope_Output,
357 layout = (AudioChannelLayout *)malloc( i_param_size);
359 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
360 kAudioDevicePropertyPreferredChannelLayout,
361 kAudioUnitScope_Output,
366 /* We need to "fill out" the ChannelLayout, because there are multiple ways that it can be set */
367 if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
369 /* bitmap defined channellayout */
370 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
371 sizeof( UInt32), &layout->mChannelBitmap,
375 else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
377 /* layouttags defined channellayout */
378 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
379 sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
384 msg_Dbg( p_aout, "layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
386 /* Initialize the VLC core channel count */
387 p_aout->format.i_physical_channels = 0;
388 i_original = p_aout->format.i_original_channels & AOUT_CHAN_PHYSMASK;
390 if( i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2 )
392 /* We only need Mono or cannot output more than 1 channel */
393 p_aout->format.i_physical_channels = AOUT_CHAN_CENTER;
395 else if( i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3 )
397 /* We only need Stereo or cannot output more than 2 channels */
398 p_aout->format.i_physical_channels = AOUT_CHAN_RIGHT | AOUT_CHAN_LEFT;
402 /* We want more than stereo and we can do that */
403 for( unsigned int i = 0; i < layout->mNumberChannelDescriptions; i++ )
405 msg_Dbg( p_aout, "this is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
407 switch( layout->mChannelDescriptions[i].mChannelLabel )
409 case kAudioChannelLabel_Left:
410 p_aout->format.i_physical_channels |= AOUT_CHAN_LEFT;
412 case kAudioChannelLabel_Right:
413 p_aout->format.i_physical_channels |= AOUT_CHAN_RIGHT;
415 case kAudioChannelLabel_Center:
416 p_aout->format.i_physical_channels |= AOUT_CHAN_CENTER;
418 case kAudioChannelLabel_LFEScreen:
419 p_aout->format.i_physical_channels |= AOUT_CHAN_LFE;
421 case kAudioChannelLabel_LeftSurround:
422 p_aout->format.i_physical_channels |= AOUT_CHAN_REARLEFT;
424 case kAudioChannelLabel_RightSurround:
425 p_aout->format.i_physical_channels |= AOUT_CHAN_REARRIGHT;
427 case kAudioChannelLabel_RearSurroundLeft:
428 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
430 case kAudioChannelLabel_RearSurroundRight:
431 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
433 case kAudioChannelLabel_CenterSurround:
434 p_aout->format.i_physical_channels |= AOUT_CHAN_REARCENTER;
437 msg_Warn( p_aout, "unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
440 if( p_aout->format.i_physical_channels == 0 )
442 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
443 msg_Err( p_aout, "You should configure your speaker layout with Audio Midi Setup Utility in /Applications/Utilities. Now using Stereo mode." );
444 dialog_Fatal( p_aout, _("Audio device is not configured"), "%s",
445 _("You should configure your speaker layout with "
446 "the \"Audio Midi Setup\" utility in /Applications/"
447 "Utilities. Stereo mode is being used now.") );
454 msg_Warn( p_aout, "this driver does not support kAudioDevicePropertyPreferredChannelLayout. BAD DRIVER AUTHOR !!!" );
455 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
458 msg_Dbg( p_aout, "selected %d physical channels for device output", aout_FormatNbChannels( &p_aout->format ) );
459 msg_Dbg( p_aout, "VLC will output: %s", aout_FormatPrintChannels( &p_aout->format ));
461 memset (&new_layout, 0, sizeof(new_layout));
462 switch( aout_FormatNbChannels( &p_aout->format ) )
465 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
468 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
471 if( p_aout->format.i_physical_channels & AOUT_CHAN_CENTER )
473 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
475 else if( p_aout->format.i_physical_channels & AOUT_CHAN_LFE )
477 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
481 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_LFE ) )
483 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
485 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT ) )
487 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
489 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER ) )
491 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
495 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER ) )
497 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
499 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
501 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
505 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
507 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
511 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_AudioUnit_6_0; // L R Ls Rs C Cs
515 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
516 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
519 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
520 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
524 /* Set up the format to be used */
525 DeviceFormat.mSampleRate = p_aout->format.i_rate;
526 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
528 /* We use float 32. It's the best supported format by both VLC and Coreaudio */
529 p_aout->format.i_format = VLC_CODEC_FL32;
530 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
531 DeviceFormat.mBitsPerChannel = 32;
532 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->format );
534 /* Calculate framesizes and stuff */
535 DeviceFormat.mFramesPerPacket = 1;
536 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
537 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
539 /* Set the desired format */
540 i_param_size = sizeof(AudioStreamBasicDescription);
541 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
542 kAudioUnitProperty_StreamFormat,
543 kAudioUnitScope_Input,
548 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
550 /* Retrieve actual format */
551 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
552 kAudioUnitProperty_StreamFormat,
553 kAudioUnitScope_Input,
558 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
560 /* Do the last VLC aout setups */
561 aout_FormatPrepare( &p_aout->format );
562 aout_PacketInit( p_aout, &p_sys->packet, FRAMESIZE );
563 aout_VolumeHardInit( p_aout, VolumeSet );
565 /* Initialize starting volume */
566 audio_volume_t volume = var_InheritInteger (p_aout, "volume");
567 bool mute = var_InheritBool (p_aout, "mute");
568 VolumeSet(p_aout, volume / (float)AOUT_VOLUME_DEFAULT, mute);
570 /* set the IOproc callback */
571 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
572 input.inputProcRefCon = p_aout;
574 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
575 kAudioUnitProperty_SetRenderCallback,
576 kAudioUnitScope_Input,
577 0, &input, sizeof( input ) ) );
579 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
580 input.inputProcRefCon = p_aout;
582 /* Set the new_layout as the layout VLC will use to feed the AU unit */
583 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
584 kAudioUnitProperty_AudioChannelLayout,
585 kAudioUnitScope_Input,
586 0, &new_layout, sizeof(new_layout) ) );
588 if( new_layout.mNumberChannelDescriptions > 0 )
589 free( new_layout.mChannelDescriptions );
592 verify_noerr( AudioUnitInitialize(p_sys->au_unit) );
594 /* Find the difference between device clock and mdate clock */
595 p_sys->clock_diff = - (mtime_t)
596 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
597 p_sys->clock_diff += mdate();
600 verify_noerr( AudioOutputUnitStart(p_sys->au_unit) );
605 /*****************************************************************************
606 * Setup a encoded digital stream (SPDIF)
607 *****************************************************************************/
608 static int OpenSPDIF( audio_output_t * p_aout )
610 struct aout_sys_t *p_sys = p_aout->sys;
611 OSStatus err = noErr;
612 UInt32 i_param_size = 0, b_mix = 0;
613 Boolean b_writeable = false;
614 AudioStreamID *p_streams = NULL;
615 unsigned i_streams = 0;
617 /* Start doing the SPDIF setup proces */
618 p_sys->b_digital = true;
621 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
622 i_param_size = sizeof( p_sys->i_hog_pid );
623 p_sys->i_hog_pid = getpid() ;
625 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
629 msg_Err( p_aout, "failed to set hogmode: [%4.4s]", (char *)&err );
633 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
635 if (AudioObjectHasProperty(p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress))
637 /* Set mixable to false if we are allowed to */
638 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
639 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size );
640 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
642 if( err == noErr && b_writeable )
645 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
646 p_sys->b_changed_mixing = true;
651 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
656 /* Get a list of all the streams on this device */
657 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
658 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size );
661 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
665 i_streams = i_param_size / sizeof( AudioStreamID );
666 p_streams = (AudioStreamID *)malloc( i_param_size );
667 if( p_streams == NULL )
670 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams );
674 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
679 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
680 for( unsigned i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++ )
682 /* Find a stream with a cac3 stream */
683 AudioStreamRangedDescription *p_format_list = NULL;
685 bool b_digital = false;
687 /* Retrieve all the stream formats supported by each output stream */
688 err = AudioObjectGetPropertyDataSize( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size );
691 msg_Err( p_aout, "OpenSPDIF: could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
695 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
696 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
697 if( p_format_list == NULL )
700 err = AudioObjectGetPropertyData( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
703 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
704 free( p_format_list );
708 /* Check if one of the supported formats is a digital format */
709 for( int j = 0; j < i_formats; j++ )
711 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
712 p_format_list[j].mFormat.mFormatID == 'iac3' ||
713 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
714 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3 )
723 /* if this stream supports a digital (cac3) format, then go set it. */
724 int i_requested_rate_format = -1;
725 int i_current_rate_format = -1;
726 int i_backup_rate_format = -1;
728 p_sys->i_stream_id = p_streams[i];
729 p_sys->i_stream_index = i;
731 if( !p_sys->b_revert )
733 AudioObjectPropertyAddress currentPhysicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
734 /* Retrieve the original format of this stream first if not done so already */
735 i_param_size = sizeof( p_sys->sfmt_revert );
736 err = AudioObjectGetPropertyData( p_sys->i_stream_id, ¤tPhysicalFormatAddress, 0, NULL, &i_param_size, &p_sys->sfmt_revert );
739 msg_Err( p_aout, "could not retrieve the original streamformat: [%4.4s]", (char *)&err );
742 p_sys->b_revert = true;
745 for( int j = 0; j < i_formats; j++ )
747 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
748 p_format_list[j].mFormat.mFormatID == 'iac3' ||
749 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
750 p_format_list[j].mFormat.mFormatID == kAudioFormatAC3 )
752 if( p_format_list[j].mFormat.mSampleRate == p_aout->format.i_rate )
754 i_requested_rate_format = j;
757 else if( p_format_list[j].mFormat.mSampleRate == p_sys->sfmt_revert.mSampleRate )
759 i_current_rate_format = j;
763 if( i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate )
764 i_backup_rate_format = j;
770 if( i_requested_rate_format >= 0 ) /* We prefer to output at the samplerate of the original audio */
771 p_sys->stream_format = p_format_list[i_requested_rate_format].mFormat;
772 else if( i_current_rate_format >= 0 ) /* If not possible, we will try to use the current samplerate of the device */
773 p_sys->stream_format = p_format_list[i_current_rate_format].mFormat;
774 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) */
776 free( p_format_list );
780 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "original stream format: ", p_sys->sfmt_revert ) );
782 if( !AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->stream_format ) )
785 /* Set the format flags */
786 if( p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian )
787 p_aout->format.i_format = VLC_CODEC_SPDIFB;
789 p_aout->format.i_format = VLC_CODEC_SPDIFL;
790 p_aout->format.i_bytes_per_frame = AOUT_SPDIF_SIZE;
791 p_aout->format.i_frame_length = A52_FRAME_NB;
792 p_aout->format.i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
793 aout_FormatPrepare( &p_aout->format );
794 aout_PacketInit( p_aout, &p_sys->packet, A52_FRAME_NB );
795 aout_VolumeNoneInit( p_aout );
797 /* Add IOProc callback */
798 err = AudioDeviceCreateIOProcID( p_sys->i_selected_dev,
799 (AudioDeviceIOProc)RenderCallbackSPDIF,
804 msg_Err( p_aout, "AudioDeviceCreateIOProcID failed: [%4.4s]", (char *)&err );
805 aout_PacketDestroy (p_aout);
809 /* Check for the difference between the Device clock and mdate */
810 p_sys->clock_diff = - (mtime_t)
811 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
812 p_sys->clock_diff += mdate();
815 err = AudioDeviceStart( p_sys->i_selected_dev, p_sys->i_procID );
818 msg_Err( p_aout, "AudioDeviceStart failed: [%4.4s]", (char *)&err );
820 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
824 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
826 aout_PacketDestroy (p_aout);
834 /*****************************************************************************
835 * Close: Close HAL AudioUnit
836 *****************************************************************************/
837 static void Close( vlc_object_t * p_this )
839 audio_output_t *p_aout = (audio_output_t *)p_this;
840 struct aout_sys_t *p_sys = p_aout->sys;
841 OSStatus err = noErr;
842 UInt32 i_param_size = 0;
846 verify_noerr( AudioOutputUnitStop( p_sys->au_unit ) );
847 verify_noerr( AudioUnitUninitialize( p_sys->au_unit ) );
848 verify_noerr( CloseComponent( p_sys->au_unit ) );
851 if( p_sys->b_digital )
854 err = AudioDeviceStop( p_sys->i_selected_dev,
858 msg_Err( p_aout, "AudioDeviceStop failed: [%4.4s]", (char *)&err );
861 /* Remove IOProc callback */
862 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
866 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
869 if( p_sys->b_revert )
871 AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->sfmt_revert );
874 if( p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3 )
877 Boolean b_writeable = false;
878 /* Revert mixable to true if we are allowed to */
879 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
880 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
881 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
883 if( err == noErr && b_writeable )
885 msg_Dbg( p_aout, "mixable is: %d", b_mix );
887 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
892 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
897 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
898 err = AudioObjectRemovePropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, NULL );
902 msg_Err( p_aout, "AudioHardwareRemovePropertyListener failed: [%4.4s]", (char *)&err );
905 if( p_sys->i_hog_pid == getpid() )
907 p_sys->i_hog_pid = -1;
908 i_param_size = sizeof( p_sys->i_hog_pid );
909 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
910 kAudioDevicePropertyScopeOutput,
911 kAudioObjectPropertyElementMaster };
912 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
913 if( err != noErr ) msg_Err( p_aout, "Could not release hogmode: [%4.4s]", (char *)&err );
916 var_DelCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
918 aout_PacketDestroy( p_aout );
922 /*****************************************************************************
923 * Probe: Check which devices the OS has, and add them to our audio-device menu
924 *****************************************************************************/
925 static void Probe( audio_output_t * p_aout )
927 OSStatus err = noErr;
928 UInt32 i_param_size = 0;
929 AudioDeviceID devid_def = 0;
930 AudioDeviceID *p_devices = NULL;
931 vlc_value_t val, text;
933 struct aout_sys_t *p_sys = p_aout->sys;
935 /* Get number of devices */
936 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
937 err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size);
940 msg_Err( p_aout, "Could not get number of devices: [%s]", (char *)&err );
944 p_sys->i_devices = i_param_size / sizeof( AudioDeviceID );
946 if( p_sys->i_devices < 1 )
948 msg_Err( p_aout, "No audio output devices were found." );
951 msg_Dbg( p_aout, "found %u audio device(s)", (unsigned)p_sys->i_devices );
953 /* Allocate DeviceID array */
954 p_devices = (AudioDeviceID*)malloc( sizeof(AudioDeviceID) * p_sys->i_devices );
955 if( p_devices == NULL )
958 /* Populate DeviceID array */
959 err = AudioObjectGetPropertyData( kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size, p_devices );
962 msg_Err( p_aout, "could not get the device IDs: [%s]", (char *)&err );
966 /* Find the ID of the default Device */
967 AudioObjectPropertyAddress defaultDeviceAddress = { kAudioHardwarePropertyDefaultOutputDevice, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
968 i_param_size = sizeof( AudioDeviceID );
969 err= AudioObjectGetPropertyData( kAudioObjectSystemObject, &defaultDeviceAddress, 0, NULL, &i_param_size, &devid_def );
972 msg_Err( p_aout, "could not get default audio device: [%s]", (char *)&err );
975 p_sys->i_default_dev = devid_def;
977 var_Create( p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE );
978 text.psz_string = (char*)_("Audio Device");
979 var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
981 AudioObjectPropertyAddress deviceNameAddress = { kAudioDevicePropertyDeviceName, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
983 for( unsigned int i = 0; i < p_sys->i_devices; i++ )
988 /* Retrieve the length of the device name */
989 err = AudioObjectGetPropertyDataSize( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size );
990 if( err ) goto error;
992 /* Retrieve the name of the device */
993 psz_name = (char *)malloc( i_param_size );
994 err = AudioObjectGetPropertyData( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size, psz_name );
995 if( err ) goto error;
997 msg_Dbg( p_aout, "DevID: %u DevName: %s", (unsigned)p_devices[i], psz_name );
999 if( !AudioDeviceHasOutput( p_devices[i]) )
1001 msg_Dbg( p_aout, "this device is INPUT only. skipping..." );
1006 /* Add the menu entries */
1007 val.i_int = (int)p_devices[i];
1008 text.psz_string = psz_name;
1009 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1010 text.psz_string = NULL;
1011 if( p_sys->i_default_dev == p_devices[i] )
1013 /* The default device is the selected device normally */
1014 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1015 var_Set( p_aout, "audio-device", val );
1018 if( AudioDeviceSupportsDigital( p_aout, p_devices[i] ) )
1020 val.i_int = (int)p_devices[i] | AOUT_VAR_SPDIF_FLAG;
1021 if( asprintf( &text.psz_string, _("%s (Encoded Output)"), psz_name ) != -1 )
1023 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1024 free( text.psz_string );
1025 if( p_sys->i_default_dev == p_devices[i]
1026 && var_InheritBool( p_aout, "spdif" ) )
1028 /* We selected to prefer SPDIF output if available
1029 * then this "dummy" entry should be selected */
1030 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1031 var_Set( p_aout, "audio-device", val );
1039 /* If a device is already "preselected", then use this device */
1040 var_Get( p_aout->p_libvlc, "macosx-audio-device", &val );
1043 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1044 var_Set( p_aout, "audio-device", val );
1047 /* Attach a Listener so that we are notified of a change in the Device setup */
1048 err = AudioObjectAddPropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, (void *)p_aout );
1056 msg_Warn( p_aout, "audio device already in use" );
1061 /*****************************************************************************
1062 * AudioDeviceHasOutput: Checks if the Device actually provides any outputs at all
1063 *****************************************************************************/
1064 static int AudioDeviceHasOutput( AudioDeviceID i_dev_id )
1068 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1069 verify_noerr( AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &dataSize ) );
1070 if (dataSize == 0) return FALSE;
1075 /*****************************************************************************
1076 * AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
1077 *****************************************************************************/
1078 static int AudioDeviceSupportsDigital( audio_output_t *p_aout, AudioDeviceID i_dev_id )
1080 OSStatus err = noErr;
1081 UInt32 i_param_size = 0;
1082 AudioStreamID *p_streams = NULL;
1084 bool b_return = false;
1086 /* Retrieve all the output streams */
1087 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1088 err = AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &i_param_size );
1091 msg_Err( p_aout, "could not get number of streams: [%s] (%i)", (char *)&err, (int32_t)err );
1095 i_streams = i_param_size / sizeof( AudioStreamID );
1096 p_streams = (AudioStreamID *)malloc( i_param_size );
1097 if( p_streams == NULL )
1100 err = AudioObjectGetPropertyData( i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams );
1103 msg_Err( p_aout, "could not get list of streams: [%s]", (char *)&err );
1107 for( int i = 0; i < i_streams; i++ )
1109 if( AudioStreamSupportsDigital( p_aout, p_streams[i] ) )
1117 /*****************************************************************************
1118 * AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
1119 *****************************************************************************/
1120 static int AudioStreamSupportsDigital( audio_output_t *p_aout, AudioStreamID i_stream_id )
1122 OSStatus err = noErr;
1123 UInt32 i_param_size = 0;
1124 AudioStreamRangedDescription *p_format_list = NULL;
1126 bool b_return = false;
1128 /* Retrieve all the stream formats supported by each output stream */
1129 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1130 err = AudioObjectGetPropertyDataSize( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size );
1133 msg_Err( p_aout, "could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
1137 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
1138 msg_Dbg( p_aout, "found %i stream formats", i_formats );
1140 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
1141 if( p_format_list == NULL )
1144 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
1147 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
1148 free( p_format_list);
1149 p_format_list = NULL;
1153 for( int i = 0; i < i_formats; i++ )
1155 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "supported format: ", p_format_list[i].mFormat ) );
1157 if( p_format_list[i].mFormat.mFormatID == 'IAC3' ||
1158 p_format_list[i].mFormat.mFormatID == 'iac3' ||
1159 p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 ||
1160 p_format_list[i].mFormat.mFormatID == kAudioFormatAC3 )
1166 free( p_format_list );
1170 /*****************************************************************************
1171 * AudioStreamChangeFormat: Change i_stream_id to change_format
1172 *****************************************************************************/
1173 static int AudioStreamChangeFormat( audio_output_t *p_aout, AudioStreamID i_stream_id, AudioStreamBasicDescription change_format )
1175 OSStatus err = noErr;
1176 UInt32 i_param_size = 0;
1178 AudioObjectPropertyAddress physicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
1180 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
1182 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "setting stream format: ", change_format ) );
1184 /* Condition because SetProperty is asynchronious */
1185 vlc_cond_init( &w.cond );
1186 vlc_mutex_init( &w.lock );
1187 vlc_mutex_lock( &w.lock );
1189 /* Install the callback */
1190 err = AudioObjectAddPropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1193 msg_Err( p_aout, "AudioObjectAddPropertyListener for kAudioStreamPropertyPhysicalFormat failed: [%4.4s]", (char *)&err );
1197 /* change the format */
1198 err = AudioObjectSetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, sizeof( AudioStreamBasicDescription ),
1202 msg_Err( p_aout, "could not set the stream format: [%4.4s]", (char *)&err );
1206 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
1207 * it is also not atomic in its behaviour.
1208 * Therefore we check 5 times before we really give up.
1209 * FIXME: failing isn't actually implemented yet. */
1210 for( int i = 0; i < 5; i++ )
1212 AudioStreamBasicDescription actual_format;
1213 mtime_t timeout = mdate() + 500000;
1215 if( vlc_cond_timedwait( &w.cond, &w.lock, timeout ) )
1217 msg_Dbg( p_aout, "reached timeout" );
1220 i_param_size = sizeof( AudioStreamBasicDescription );
1221 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, &i_param_size, &actual_format );
1223 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "actual format in use: ", actual_format ) );
1224 if( actual_format.mSampleRate == change_format.mSampleRate &&
1225 actual_format.mFormatID == change_format.mFormatID &&
1226 actual_format.mFramesPerPacket == change_format.mFramesPerPacket )
1228 /* The right format is now active */
1231 /* We need to check again */
1234 /* Removing the property listener */
1235 err = AudioObjectRemovePropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1238 msg_Err( p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err );
1242 /* Destroy the lock and condition */
1243 vlc_mutex_unlock( &w.lock );
1244 vlc_mutex_destroy( &w.lock );
1245 vlc_cond_destroy( &w.cond );
1250 /*****************************************************************************
1251 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1252 * us to provide some more audio data.
1253 * Don't print anything during normal playback, calling blocking function from
1254 * this callback is not allowed.
1255 *****************************************************************************/
1256 static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
1257 AudioUnitRenderActionFlags *ioActionFlags,
1258 const AudioTimeStamp *inTimeStamp,
1259 unsigned int inBusNumber,
1260 unsigned int inNumberFrames,
1261 AudioBufferList *ioData )
1263 AudioTimeStamp host_time;
1264 mtime_t current_date = 0;
1265 uint32_t i_mData_bytes = 0;
1267 audio_output_t * p_aout = (audio_output_t *)_p_aout;
1268 struct aout_sys_t * p_sys = p_aout->sys;
1270 VLC_UNUSED(ioActionFlags);
1271 VLC_UNUSED(inBusNumber);
1272 VLC_UNUSED(inNumberFrames);
1274 host_time.mFlags = kAudioTimeStampHostTimeValid;
1275 AudioDeviceTranslateTime( p_sys->i_selected_dev, inTimeStamp, &host_time );
1277 /* Check for the difference between the Device clock and mdate */
1278 p_sys->clock_diff = - (mtime_t)
1279 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
1280 p_sys->clock_diff += mdate();
1282 current_date = p_sys->clock_diff +
1283 AudioConvertHostTimeToNanos( host_time.mHostTime ) / 1000;
1284 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1286 if( ioData == NULL && ioData->mNumberBuffers < 1 )
1288 msg_Err( p_aout, "no iodata or buffers");
1291 if( ioData->mNumberBuffers > 1 )
1292 msg_Err( p_aout, "well this is weird. seems like there is more than one buffer..." );
1295 if( p_sys->i_total_bytes > 0 )
1297 i_mData_bytes = __MIN( p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize );
1298 vlc_memcpy( ioData->mBuffers[0].mData,
1299 &p_sys->p_remainder_buffer[p_sys->i_read_bytes],
1301 p_sys->i_read_bytes += i_mData_bytes;
1302 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1303 ( i_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1305 if( p_sys->i_read_bytes >= p_sys->i_total_bytes )
1306 p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
1309 while( i_mData_bytes < ioData->mBuffers[0].mDataByteSize )
1311 /* We don't have enough data yet */
1312 aout_buffer_t * p_buffer;
1313 p_buffer = aout_PacketNext( p_aout, current_date );
1315 if( p_buffer != NULL )
1317 uint32_t i_second_mData_bytes = __MIN( p_buffer->i_buffer, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1319 vlc_memcpy( (uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes,
1320 p_buffer->p_buffer, i_second_mData_bytes );
1321 i_mData_bytes += i_second_mData_bytes;
1323 if( i_mData_bytes >= ioData->mBuffers[0].mDataByteSize )
1325 p_sys->i_total_bytes = p_buffer->i_buffer - i_second_mData_bytes;
1326 vlc_memcpy( p_sys->p_remainder_buffer,
1327 &p_buffer->p_buffer[i_second_mData_bytes],
1328 p_sys->i_total_bytes );
1329 aout_BufferFree( p_buffer );
1334 /* update current_date */
1335 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1336 ( i_second_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1338 aout_BufferFree( p_buffer );
1342 vlc_memset( (uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes,
1343 0,ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1344 i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
1350 /*****************************************************************************
1351 * RenderCallbackSPDIF: callback for SPDIF audio output
1352 *****************************************************************************/
1353 static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
1354 const AudioTimeStamp * inNow,
1355 const void * inInputData,
1356 const AudioTimeStamp * inInputTime,
1357 AudioBufferList * outOutputData,
1358 const AudioTimeStamp * inOutputTime,
1359 void * threadGlobals )
1361 aout_buffer_t * p_buffer;
1362 mtime_t current_date;
1364 audio_output_t * p_aout = (audio_output_t *)threadGlobals;
1365 struct aout_sys_t * p_sys = p_aout->sys;
1367 VLC_UNUSED(inDevice);
1368 VLC_UNUSED(inInputData);
1369 VLC_UNUSED(inInputTime);
1371 /* Check for the difference between the Device clock and mdate */
1372 p_sys->clock_diff = - (mtime_t)
1373 AudioConvertHostTimeToNanos( inNow->mHostTime ) / 1000;
1374 p_sys->clock_diff += mdate();
1376 current_date = p_sys->clock_diff +
1377 AudioConvertHostTimeToNanos( inOutputTime->mHostTime ) / 1000;
1378 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1380 p_buffer = aout_PacketNext( p_aout, current_date );
1382 #define BUFFER outOutputData->mBuffers[p_sys->i_stream_index]
1383 if( p_buffer != NULL )
1385 if( (int)BUFFER.mDataByteSize != (int)p_buffer->i_buffer)
1386 msg_Warn( p_aout, "bytesize: %d nb_bytes: %d", (int)BUFFER.mDataByteSize, (int)p_buffer->i_buffer );
1388 /* move data into output data buffer */
1389 vlc_memcpy( BUFFER.mData, p_buffer->p_buffer, p_buffer->i_buffer );
1390 aout_BufferFree( p_buffer );
1394 vlc_memset( BUFFER.mData, 0, BUFFER.mDataByteSize );
1401 /*****************************************************************************
1402 * HardwareListener: Warns us of changes in the list of registered devices
1403 *****************************************************************************/
1404 static OSStatus HardwareListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1406 OSStatus err = noErr;
1407 audio_output_t *p_aout = (audio_output_t *)inClientData;
1408 VLC_UNUSED(inObjectID);
1410 for ( unsigned int i = 0; i < inNumberAddresses; i++ )
1412 if( inAddresses[i].mSelector == kAudioHardwarePropertyDevices )
1414 /* something changed in the list of devices */
1415 /* We trigger the audio-device's aout_ChannelsRestart callback */
1416 var_TriggerCallback( p_aout, "audio-device" );
1417 var_Destroy( p_aout, "audio-device" );
1424 /*****************************************************************************
1426 *****************************************************************************/
1427 static OSStatus StreamListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1429 OSStatus err = noErr;
1430 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1432 VLC_UNUSED(inObjectID);
1434 for( unsigned int i = 0; i < inNumberAddresses; i++ )
1436 if( inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat )
1438 vlc_mutex_lock( &w->lock );
1439 vlc_cond_signal( &w->cond );
1440 vlc_mutex_unlock( &w->lock );
1447 /*****************************************************************************
1448 * AudioDeviceCallback: Callback triggered when the audio-device variable is changed
1449 *****************************************************************************/
1450 static int AudioDeviceCallback( vlc_object_t *p_this, const char *psz_variable,
1451 vlc_value_t old_val, vlc_value_t new_val, void *param )
1453 audio_output_t *p_aout = (audio_output_t *)p_this;
1454 var_Set( p_aout->p_libvlc, "macosx-audio-device", new_val );
1455 msg_Dbg( p_aout, "Set Device: %#"PRIx64, new_val.i_int );
1456 return aout_ChannelsRestart( p_this, psz_variable, old_val, new_val, param );
1460 /*****************************************************************************
1461 * VolumeSet: Implements pf_volume_set(). Update the CoreAudio AU volume immediately.
1462 *****************************************************************************/
1463 static int VolumeSet( audio_output_t * p_aout, float volume, bool mute )
1465 struct aout_sys_t *p_sys = p_aout->sys;
1471 volume = volume * volume * volume; // cubic mapping from output.c
1473 /* Set volume for output unit */
1474 ostatus = AudioUnitSetParameter( p_sys->au_unit,
1475 kHALOutputParam_Volume,
1476 kAudioUnitScope_Global,