1 /*****************************************************************************
2 * auhal.c: AUHAL output plugin
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
34 #include "aout_internal.h"
36 #include <CoreAudio/CoreAudio.h>
37 #include <CoreAudio/CoreAudioTypes.h>
38 #include <AudioUnit/AudioUnitProperties.h>
39 #include <AudioUnit/AudioUnitParameters.h>
40 #include <AudioUnit/AudioOutputUnit.h>
41 #include <AudioToolbox/AudioFormat.h>
43 #define STREAM_FORMAT_MSG( pre, sfm ) \
44 pre "[%ld][%4.4s][%ld][%ld][%ld][%ld][%ld][%ld]", \
45 (UInt32)sfm.mSampleRate, (char *)&sfm.mFormatID, \
46 sfm.mFormatFlags, sfm.mBytesPerPacket, \
47 sfm.mFramesPerPacket, sfm.mBytesPerFrame, \
48 sfm.mChannelsPerFrame, sfm.mBitsPerChannel
50 #define STREAM_FORMAT_MSG_FULL( pre, sfm ) \
51 pre ":\nsamplerate: [%ld]\nFormatID: [%4.4s]\nFormatFlags: [%ld]\nBypesPerPacket: [%ld]\nFramesPerPacket: [%ld]\nBytesPerFrame: [%ld]\nChannelsPerFrame: [%ld]\nBitsPerChannel[%ld]", \
52 (UInt32)sfm.mSampleRate, (char *)&sfm.mFormatID, \
53 sfm.mFormatFlags, sfm.mBytesPerPacket, \
54 sfm.mFramesPerPacket, sfm.mBytesPerFrame, \
55 sfm.mChannelsPerFrame, sfm.mBitsPerChannel
57 #define BUFSIZE 0xffffff
58 #define AOUT_VAR_SPDIF_FLAG 0xf00000
62 * - clean up the debug info
64 * - be better at changing stream setup or devices setup changes while playing.
67 /*****************************************************************************
68 * aout_sys_t: private audio output method descriptor
69 *****************************************************************************
70 * This structure is part of the audio output thread descriptor.
71 * It describes the CoreAudio specific properties of an output thread.
72 *****************************************************************************/
75 AudioDeviceID i_default_dev; /* Keeps DeviceID of defaultOutputDevice */
76 AudioDeviceID i_selected_dev; /* Keeps DeviceID of the selected device */
77 UInt32 i_devices; /* Number of CoreAudio Devices */
78 vlc_bool_t b_supports_digital;/* Does the currently selected device support digital mode? */
79 vlc_bool_t b_digital; /* Are we running in digital mode? */
80 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;
87 /* CoreAudio SPDIF mode specific */
88 pid_t i_hog_pid; /* The keep the pid of our hog status */
89 AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
90 int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
91 AudioStreamBasicDescription stream_format; /* The format we changed the to */
92 AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
93 vlc_bool_t b_revert; /* Wether we need to revert the stream format */
94 vlc_bool_t b_changed_mixing;/* Wether we need to set the mixing mode back */
97 /*****************************************************************************
99 *****************************************************************************/
100 static int Open ( vlc_object_t * );
101 static int OpenAnalog ( aout_instance_t * );
102 static int OpenSPDIF ( aout_instance_t * );
103 static void Close ( vlc_object_t * );
105 static void Play ( aout_instance_t * );
106 static void Probe ( aout_instance_t * );
108 static int AudioDeviceHasOutput ( AudioDeviceID );
109 static int AudioDeviceSupportsDigital( aout_instance_t *, AudioDeviceID );
110 static int AudioStreamSupportsDigital( aout_instance_t *, AudioStreamID );
112 static OSStatus RenderCallbackAnalog ( vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
113 unsigned int, unsigned int, AudioBufferList *);
114 static OSStatus RenderCallbackSPDIF ( AudioDeviceID, const AudioTimeStamp *, const void *, const AudioTimeStamp *,
115 AudioBufferList *, const AudioTimeStamp *, void * );
116 static OSStatus HardwareListener ( AudioHardwarePropertyID, void *);
117 static OSStatus StreamListener ( AudioStreamID, UInt32,
118 AudioDevicePropertyID, 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( _("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, NULL, ADEV_TEXT, ADEV_LONGTEXT, VLC_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;
149 vlc_bool_t b_alive = VLC_FALSE;
151 aout_instance_t *p_aout = (aout_instance_t *)p_this;
153 /* Allocate structure */
154 p_aout->output.p_sys = malloc( sizeof( aout_sys_t ) );
155 if( p_aout->output.p_sys == NULL )
157 msg_Err( p_aout, "out of memory" );
158 return( VLC_ENOMEM );
161 p_sys = p_aout->output.p_sys;
162 p_sys->i_default_dev = 0;
163 p_sys->i_selected_dev = 0;
164 p_sys->i_devices = 0;
165 p_sys->b_supports_digital = VLC_FALSE;
166 p_sys->b_digital = VLC_FALSE;
167 p_sys->au_component = NULL;
168 p_sys->au_unit = NULL;
169 p_sys->clock_diff = (mtime_t) 0;
170 p_sys->i_read_bytes = 0;
171 p_sys->i_total_bytes = 0;
172 p_sys->i_hog_pid = -1;
173 p_sys->i_stream_id = 0;
174 p_sys->i_stream_index = -1;
175 p_sys->b_revert = VLC_FALSE;
176 p_sys->b_changed_mixing = VLC_FALSE;
177 memset( p_sys->p_remainder_buffer, 0, sizeof(uint8_t) * BUFSIZE );
179 p_aout->output.pf_play = Play;
181 aout_FormatPrint( p_aout, "VLC is looking for:", (audio_sample_format_t *)&p_aout->output.output );
183 /* Persistent device variable */
184 if( var_Type( p_aout->p_vlc, "macosx-audio-device" ) == 0 )
186 msg_Dbg( p_aout, "create macosx-audio-device" );
187 var_Create( p_aout->p_vlc, "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." );
201 return( VLC_ENOVAR );
204 p_sys->i_selected_dev = val.i_int & ~AOUT_VAR_SPDIF_FLAG;
205 p_sys->b_supports_digital = ( val.i_int & AOUT_VAR_SPDIF_FLAG ) ? VLC_TRUE : VLC_FALSE;
207 /* Check if the desired device is alive and usable */
208 i_param_size = sizeof( b_alive );
209 err = AudioDeviceGetProperty( p_sys->i_selected_dev, 0, FALSE,
210 kAudioDevicePropertyDeviceIsAlive,
211 &i_param_size, &b_alive );
215 msg_Err( p_aout, "could not check whether device is alive: %4.4s",
220 if( b_alive == VLC_FALSE )
222 msg_Err( p_aout, "Selected audio device is not alive switching to default device" );
223 p_sys->i_selected_dev = p_sys->i_default_dev;
226 i_param_size = sizeof( p_sys->i_hog_pid );
227 err = AudioDeviceGetProperty( p_sys->i_selected_dev, 0, FALSE,
228 kAudioDevicePropertyHogMode,
229 &i_param_size, &p_sys->i_hog_pid );
233 msg_Err( p_aout, "could not check whether device is hogged: %4.4s",
238 if( p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid() )
240 msg_Err( p_aout, "Selected audio device is exclusively in use by another program" );
241 var_Destroy( p_aout, "audio-device" );
246 /* Check for Digital mode or Analog output mode */
247 if( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) && p_sys->b_supports_digital )
249 if( OpenSPDIF( p_aout ) )
254 if( OpenAnalog( p_aout ) )
258 /* If we reach this, the Open* failed */
259 var_Destroy( p_aout, "audio-device" );
264 /*****************************************************************************
265 * Open: open and setup a HAL AudioUnit
266 *****************************************************************************/
267 static int OpenAnalog( aout_instance_t *p_aout )
269 struct aout_sys_t *p_sys = p_aout->output.p_sys;
270 OSStatus err = noErr;
271 UInt32 i_param_size = 0, i = 0;
272 ComponentDescription desc;
274 if( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) && !p_sys->b_supports_digital )
276 msg_Dbg( p_aout, "we had requested a digital stream, but it's not possible for this device" );
279 /* If analog only start setting up AUHAL */
280 /* Lets go find our Component */
281 desc.componentType = kAudioUnitType_Output;
282 desc.componentSubType = kAudioUnitSubType_HALOutput;
283 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
284 desc.componentFlags = 0;
285 desc.componentFlagsMask = 0;
287 p_sys->au_component = FindNextComponent( NULL, &desc );
288 if( p_sys->au_component == NULL )
290 msg_Err( p_aout, "we cannot find our HAL component" );
294 err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
297 msg_Err( p_aout, "we cannot find our HAL component" );
301 /* Enable IO for the component */
302 msg_Dbg( p_aout, "Device: %#x", (int)p_sys->i_selected_dev );
305 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
306 kAudioOutputUnitProperty_CurrentDevice,
307 kAudioUnitScope_Global,
309 &p_sys->i_selected_dev,
310 sizeof( AudioDeviceID )));
312 /* Get the current format */
313 AudioStreamBasicDescription DeviceFormat;
315 i_param_size = sizeof(AudioStreamBasicDescription);
317 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
318 kAudioUnitProperty_StreamFormat,
319 kAudioUnitScope_Input,
324 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is: " , DeviceFormat ) );
326 /* Get the channel layout */
327 AudioChannelLayout *layout;
328 verify_noerr( AudioUnitGetPropertyInfo( p_sys->au_unit,
329 kAudioDevicePropertyPreferredChannelLayout,
330 kAudioUnitScope_Output,
335 layout = (AudioChannelLayout *)malloc( i_param_size);
337 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
338 kAudioDevicePropertyPreferredChannelLayout,
339 kAudioUnitScope_Output,
344 /* Lets fill out the ChannelLayout */
345 if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
347 msg_Dbg( p_aout, "bitmap defined channellayout" );
348 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
349 sizeof( UInt32), &layout->mChannelBitmap,
353 else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
355 msg_Dbg( p_aout, "layouttags defined channellayout" );
356 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
357 sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
362 msg_Dbg( p_aout, "Layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
364 p_aout->output.output.i_physical_channels = 0;
365 int i_original = p_aout->output.output.i_original_channels & AOUT_CHAN_PHYSMASK;
367 if( i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2 )
369 // We only need Mono or cannot output more
370 p_aout->output.output.i_physical_channels |= AOUT_CHAN_CENTER;
372 else if( i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3 )
374 // We only need Stereo or cannot output more
375 p_aout->output.output.i_physical_channels |= AOUT_CHAN_RIGHT;
376 p_aout->output.output.i_physical_channels |= AOUT_CHAN_LEFT;
380 // We want more then stereo and we can do that
381 for( i = 0; i < layout->mNumberChannelDescriptions; i++ )
383 msg_Dbg( p_aout, "This is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
385 switch( layout->mChannelDescriptions[i].mChannelLabel )
387 case kAudioChannelLabel_Left:
388 p_aout->output.output.i_physical_channels |= AOUT_CHAN_LEFT;
390 case kAudioChannelLabel_Right:
391 p_aout->output.output.i_physical_channels |= AOUT_CHAN_RIGHT;
393 case kAudioChannelLabel_Center:
394 p_aout->output.output.i_physical_channels |= AOUT_CHAN_CENTER;
396 case kAudioChannelLabel_LFEScreen:
397 p_aout->output.output.i_physical_channels |= AOUT_CHAN_LFE;
399 case kAudioChannelLabel_LeftSurround:
400 p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARLEFT;
402 case kAudioChannelLabel_RightSurround:
403 p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARRIGHT;
405 case kAudioChannelLabel_RearSurroundLeft:
406 p_aout->output.output.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
408 case kAudioChannelLabel_RearSurroundRight:
409 p_aout->output.output.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
411 case kAudioChannelLabel_CenterSurround:
412 p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARCENTER;
415 msg_Warn( p_aout, "Unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
418 msg_Warn( p_aout, "Probably no channellayout is set. force based on channelcount" );
419 switch( layout->mNumberChannelDescriptions )
421 /* We make assumptions based on number of channels here.
422 * Unfortunatly Apple has provided no 100% method to retrieve the speaker configuration */
424 p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
427 p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
428 AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
431 p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
432 AOUT_CHAN_CENTER | AOUT_CHAN_LFE |
433 AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
436 p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
437 AOUT_CHAN_CENTER | AOUT_CHAN_LFE |
438 AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT |
439 AOUT_CHAN_REARCENTER;
442 p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
443 AOUT_CHAN_CENTER | AOUT_CHAN_LFE |
444 AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT |
445 AOUT_CHAN_MIDDLELEFT | AOUT_CHAN_MIDDLERIGHT;
449 p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
456 if( layout ) free( layout );
458 msg_Dbg( p_aout, "we want to output these channels: %#x", p_aout->output.output.i_original_channels);
459 msg_Dbg( p_aout, "selected %d physical channels for device output", aout_FormatNbChannels( &p_aout->output.output ) );
460 msg_Dbg( p_aout, "%s", aout_FormatPrintChannels( &p_aout->output.output ));
462 AudioChannelLayout new_layout;
463 memset (&new_layout, 0, sizeof(new_layout));
464 switch( aout_FormatNbChannels( &p_aout->output.output ) )
467 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
470 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
473 if( p_aout->output.output.i_physical_channels & AOUT_CHAN_CENTER )
475 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
477 else if( p_aout->output.output.i_physical_channels & AOUT_CHAN_LFE )
479 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
483 if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_LFE ) )
485 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
487 else if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT ) )
489 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
491 else if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER ) )
493 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
497 if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_CENTER ) )
499 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
501 else if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_LFE ) )
503 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
507 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
510 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
511 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
514 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
515 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
519 /* Set up the format to be used */
520 DeviceFormat.mSampleRate = p_aout->output.output.i_rate;
521 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
523 /* We use float 32. It's the best supported format by both VLC and Coreaudio */
524 p_aout->output.output.i_format = VLC_FOURCC( 'f','l','3','2');
525 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
526 DeviceFormat.mBitsPerChannel = 32;
527 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->output.output );
529 /* Calculate framesizes and stuff */
530 aout_FormatPrepare( &p_aout->output.output );
531 DeviceFormat.mFramesPerPacket = 1;
532 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
533 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
535 i_param_size = sizeof(AudioStreamBasicDescription);
536 /* Set desired format (Use CAStreamBasicDescription )*/
537 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
538 kAudioUnitProperty_StreamFormat,
539 kAudioUnitScope_Input,
544 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
546 /* Retrieve actual format??? */
547 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
548 kAudioUnitProperty_StreamFormat,
549 kAudioUnitScope_Input,
554 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
556 p_aout->output.i_nb_samples = 2048;
557 aout_VolumeSoftInit( p_aout );
559 /* Find the difference between device clock and mdate clock */
560 p_sys->clock_diff = - (mtime_t)
561 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
562 p_sys->clock_diff += mdate();
564 /* set the IOproc callback */
565 AURenderCallbackStruct input;
566 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
567 input.inputProcRefCon = p_aout;
569 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
570 kAudioUnitProperty_SetRenderCallback,
571 kAudioUnitScope_Input,
572 0, &input, sizeof( input ) ) );
574 input.inputProc = (AURenderCallback) RenderCallbackAnalog;
575 input.inputProcRefCon = p_aout;
577 /* Set the new_layout as the layout VLC feeds to the AU unit */
578 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
579 kAudioUnitProperty_AudioChannelLayout,
580 kAudioUnitScope_Input,
581 0, &new_layout, sizeof(new_layout) ) );
584 verify_noerr( AudioUnitInitialize(p_sys->au_unit) );
586 verify_noerr( AudioOutputUnitStart(p_sys->au_unit) );
591 /*****************************************************************************
592 * Setup a encoded digital stream (SPDIF)
593 *****************************************************************************/
594 static int OpenSPDIF( aout_instance_t * p_aout )
596 struct aout_sys_t *p_sys = p_aout->output.p_sys;
597 OSStatus err = noErr;
598 UInt32 i_param_size = 0, b_mix = 0;
599 Boolean b_writeable = VLC_FALSE;
600 AudioStreamID *p_streams = NULL;
601 int i = 0, i_streams = 0;
604 struct timespec timeout;
605 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
607 /* Start doing the SPDIF setup proces */
608 p_sys->b_digital = VLC_TRUE;
609 msg_Dbg( p_aout, "opening in SPDIF mode" );
612 i_param_size = sizeof( p_sys->i_hog_pid );
613 p_sys->i_hog_pid = getpid() ;
615 err = AudioDeviceSetProperty( p_sys->i_selected_dev, 0, 0, FALSE,
616 kAudioDevicePropertyHogMode, i_param_size, &p_sys->i_hog_pid );
620 msg_Err( p_aout, "failed to set hogmode: : [%4.4s]", (char *)&err );
624 /* Set mixable to false if we are allowed to */
625 err = AudioDeviceGetPropertyInfo( p_sys->i_selected_dev, 0, FALSE, kAudioDevicePropertySupportsMixing,
626 &i_param_size, &b_writeable );
628 err = AudioDeviceGetProperty( p_sys->i_selected_dev, 0, FALSE, kAudioDevicePropertySupportsMixing,
629 &i_param_size, &b_mix );
631 if( !err && b_writeable )
634 err = AudioDeviceSetProperty( p_sys->i_selected_dev, 0, 0, FALSE,
635 kAudioDevicePropertySupportsMixing, i_param_size, &b_mix );
636 p_sys->b_changed_mixing = VLC_TRUE;
641 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
645 // Find stream_id of selected device with a cac3 stream
646 err = AudioDeviceGetPropertyInfo( p_sys->i_selected_dev, 0, FALSE,
647 kAudioDevicePropertyStreams,
648 &i_param_size, NULL );
651 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
655 i_streams = i_param_size / sizeof( AudioStreamID );
656 p_streams = (AudioStreamID *)malloc( i_param_size );
657 if( p_streams == NULL )
659 msg_Err( p_aout, "Out of memory" );
663 err = AudioDeviceGetProperty( p_sys->i_selected_dev, 0, FALSE,
664 kAudioDevicePropertyStreams,
665 &i_param_size, p_streams );
669 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
670 if( p_streams ) free( p_streams );
674 for( i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++ )
676 // Find a stream with a cac3 stream
677 AudioStreamBasicDescription *p_format_list = NULL;
678 int i_formats = 0, j = 0;
679 vlc_bool_t b_digital = VLC_FALSE;
681 /* Retrieve all the stream formats supported by each output stream */
682 err = AudioStreamGetPropertyInfo( p_streams[i], 0,
683 kAudioStreamPropertyPhysicalFormats,
684 &i_param_size, NULL );
687 msg_Err( p_aout, "could not get number of streamformats: [%4.4s]", (char *)&err );
691 i_formats = i_param_size / sizeof( AudioStreamBasicDescription );
692 p_format_list = (AudioStreamBasicDescription *)malloc( i_param_size );
693 if( p_format_list == NULL )
695 msg_Err( p_aout, "Could not malloc the memory" );
699 err = AudioStreamGetProperty( p_streams[i], 0,
700 kAudioStreamPropertyPhysicalFormats,
701 &i_param_size, p_format_list );
704 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
705 if( p_format_list) free( p_format_list);
709 for( j = 0; j < i_formats; j++ )
711 if( p_format_list[j].mFormatID == 'IAC3' ||
712 p_format_list[j].mFormatID == kAudioFormat60958AC3 )
714 b_digital = VLC_TRUE;
721 int i_requested_format = -1;
722 int i_current_format = -1;
723 int i_backup_format = -1;
724 // found a cac3 format
725 p_sys->i_stream_id = p_streams[i];
726 p_sys->i_stream_index = i;
728 if( p_sys->b_revert == VLC_FALSE )
730 i_param_size = sizeof( p_sys->sfmt_revert );
731 err = AudioStreamGetProperty( p_sys->i_stream_id, 0,
732 kAudioStreamPropertyPhysicalFormat,
734 &p_sys->sfmt_revert );
737 msg_Err( p_aout, "could not retrieve the original streamformat: [%4.4s]", (char *)&err );
740 p_sys->b_revert = VLC_TRUE;
742 for( j = 0; j < i_formats; j++ )
744 if( p_format_list[j].mFormatID == 'IAC3' ||
745 p_format_list[j].mFormatID == kAudioFormat60958AC3 )
747 if( p_format_list[j].mSampleRate == p_aout->output.output.i_rate )
749 i_requested_format = j;
752 else if( p_format_list[j].mSampleRate == p_sys->sfmt_revert.mSampleRate )
754 i_current_format = j;
758 if( i_backup_format < 0 || p_format_list[j].mSampleRate > p_format_list[i_backup_format].mSampleRate )
764 if( i_requested_format >= 0 )
765 p_sys->stream_format = p_format_list[i_requested_format];
766 else if( i_current_format >= 0 )
767 p_sys->stream_format = p_format_list[i_current_format];
768 else p_sys->stream_format = p_format_list[i_backup_format];
770 if( p_format_list ) free( p_format_list );
772 if( p_streams ) free( p_streams );
774 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "original stream format: ", p_sys->sfmt_revert ) );
775 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "setting stream format: ", p_sys->stream_format ) );
777 /* Install the callback */
778 err = AudioStreamAddPropertyListener( p_sys->i_stream_id, 0,
779 kAudioStreamPropertyPhysicalFormat,
780 StreamListener, (void *)&w );
783 msg_Err( p_aout, "AudioStreamAddPropertyListener failed: [%4.4s]", (char *)&err );
787 /* Condition because SetProperty is asynchronious */
788 vlc_cond_init( p_aout, &w.cond );
789 vlc_mutex_init( p_aout, &w.lock );
790 vlc_mutex_lock( &w.lock );
792 /* change the format */
793 err = AudioStreamSetProperty( p_sys->i_stream_id, 0, 0,
794 kAudioStreamPropertyPhysicalFormat,
795 sizeof( AudioStreamBasicDescription ),
796 &p_sys->stream_format );
799 msg_Err( p_aout, "could not set the stream format: [%4.4s]", (char *)&err );
803 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
804 * it is also not Atomic, in it's behaviour.
805 * Therefore we check 5 times before we really give up.
806 * FIXME: failing isn't actually implemented yet. */
807 for( i = 0; i < 5; i++ )
809 AudioStreamBasicDescription actual_format;
811 gettimeofday( &now, NULL );
812 timeout.tv_sec = now.tv_sec;
813 timeout.tv_nsec = (now.tv_usec + 900000) * 1000;
815 if( pthread_cond_timedwait( &w.cond.cond, &w.lock.mutex, &timeout ) )
817 msg_Dbg( p_aout, "reached timeout" );
818 vlc_mutex_unlock( &w.lock );
819 vlc_mutex_destroy( &w.lock );
820 vlc_cond_destroy( &w.cond );
823 i_param_size = sizeof( AudioStreamBasicDescription );
824 err = AudioStreamGetProperty( p_sys->i_stream_id, 0,
825 kAudioStreamPropertyPhysicalFormat,
829 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "actual format in use: ", actual_format ) );
830 if( actual_format.mSampleRate == p_sys->stream_format.mSampleRate &&
831 actual_format.mFormatID == p_sys->stream_format.mFormatID &&
832 actual_format.mFramesPerPacket == p_sys->stream_format.mFramesPerPacket )
834 /* The right format is now active */
837 /* We need to check again */
838 vlc_cond_init( p_aout, &w.cond );
839 vlc_mutex_init( p_aout, &w.lock );
840 vlc_mutex_lock( &w.lock );
843 err = AudioStreamRemovePropertyListener( p_sys->i_stream_id, 0,
844 kAudioStreamPropertyPhysicalFormat,
848 msg_Err( p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err );
852 /* set the format flags */
853 if( p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian )
854 p_aout->output.output.i_format = VLC_FOURCC('s','p','d','b');
856 p_aout->output.output.i_format = VLC_FOURCC('s','p','d','i');
857 p_aout->output.output.i_bytes_per_frame = AOUT_SPDIF_SIZE;
858 p_aout->output.output.i_frame_length = A52_FRAME_NB;
859 p_aout->output.i_nb_samples = p_aout->output.output.i_frame_length;
860 p_aout->output.output.i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
862 aout_VolumeNoneInit( p_aout );
864 /* Add IOProc callback */
865 err = AudioDeviceAddIOProc( p_sys->i_selected_dev,
866 (AudioDeviceIOProc)RenderCallbackSPDIF,
870 msg_Err( p_aout, "AudioDeviceAddIOProc failed: [%4.4s]", (char *)&err );
874 /* Check for the difference between the Device clock and mdate */
875 p_sys->clock_diff = - (mtime_t)
876 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
877 p_sys->clock_diff += mdate();
880 err = AudioDeviceStart( p_sys->i_selected_dev, (AudioDeviceIOProc)RenderCallbackSPDIF );
883 msg_Err( p_aout, "AudioDeviceStart failed: [%4.4s]", (char *)&err );
885 err = AudioDeviceRemoveIOProc( p_sys->i_selected_dev,
886 (AudioDeviceIOProc)RenderCallbackSPDIF );
889 msg_Err( p_aout, "AudioDeviceRemoveIOProc failed: [%4.4s]", (char *)&err );
898 /*****************************************************************************
899 * Close: Close HAL AudioUnit
900 *****************************************************************************/
901 static void Close( vlc_object_t * p_this )
903 aout_instance_t *p_aout = (aout_instance_t *)p_this;
904 struct aout_sys_t *p_sys = p_aout->output.p_sys;
905 OSStatus err = noErr;
906 UInt32 i_param_size = 0;
910 verify_noerr( AudioOutputUnitStop( p_sys->au_unit ) );
911 verify_noerr( AudioUnitUninitialize( p_sys->au_unit ) );
912 verify_noerr( CloseComponent( p_sys->au_unit ) );
915 if( p_sys->b_digital )
918 err = AudioDeviceStop( p_sys->i_selected_dev,
919 (AudioDeviceIOProc)RenderCallbackSPDIF );
922 msg_Err( p_aout, "AudioDeviceStop failed: [%4.4s]", (char *)&err );
925 /* Remove callback */
926 err = AudioDeviceRemoveIOProc( p_sys->i_selected_dev,
927 (AudioDeviceIOProc)RenderCallbackSPDIF );
930 msg_Err( p_aout, "AudioDeviceRemoveIOProc failed: [%4.4s]", (char *)&err );
933 if( p_sys->b_revert )
936 struct timespec timeout;
937 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
939 /* Install the callback */
940 err = AudioStreamAddPropertyListener( p_sys->i_stream_id, 0,
941 kAudioStreamPropertyPhysicalFormat,
942 StreamListener, (void *)&w );
945 msg_Err( p_aout, "AudioStreamAddPropertyListener failed: [%4.4s]", (char *)&err );
948 /* Condition because SetProperty is asynchronious */
949 vlc_cond_init( p_aout, &w.cond );
950 vlc_mutex_init( p_aout, &w.lock );
951 vlc_mutex_lock( &w.lock );
953 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "setting stream format: ", p_sys->sfmt_revert ) );
955 err = AudioStreamSetProperty( p_sys->i_stream_id, NULL, 0,
956 kAudioStreamPropertyPhysicalFormat,
957 sizeof( AudioStreamBasicDescription ),
958 &p_sys->sfmt_revert );
962 msg_Err( p_aout, "Streamformat reverse failed: [%4.4s]", (char *)&err );
965 gettimeofday( &now, NULL );
966 timeout.tv_sec = now.tv_sec;
967 timeout.tv_nsec = (now.tv_usec + 900000) * 1000;
969 if( pthread_cond_timedwait( &w.cond.cond, &w.lock.mutex, &timeout ) == ETIMEDOUT )
971 msg_Dbg( p_aout, "reached timeout" );
973 vlc_mutex_unlock( &w.lock );
975 err = AudioStreamRemovePropertyListener( p_sys->i_stream_id, 0,
976 kAudioStreamPropertyPhysicalFormat,
980 msg_Err( p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err );
983 vlc_mutex_destroy( &w.lock );
984 vlc_cond_destroy( &w.cond );
986 i_param_size = sizeof( AudioStreamBasicDescription );
987 err = AudioStreamGetProperty( p_sys->i_stream_id, 0,
988 kAudioStreamPropertyPhysicalFormat,
990 &p_sys->stream_format );
992 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "actual format in use: ", p_sys->stream_format ) );
994 if( p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3 )
998 /* Revert mixable to true if we are allowed to */
999 err = AudioDeviceGetPropertyInfo( p_sys->i_selected_dev, 0, FALSE, kAudioDevicePropertySupportsMixing,
1000 &i_param_size, &b_writeable );
1002 err = AudioDeviceGetProperty( p_sys->i_selected_dev, 0, FALSE, kAudioDevicePropertySupportsMixing,
1003 &i_param_size, &b_mix );
1005 if( !err && b_writeable )
1007 msg_Dbg( p_aout, "mixable is: %d", b_mix );
1009 err = AudioDeviceSetProperty( p_sys->i_selected_dev, 0, 0, FALSE,
1010 kAudioDevicePropertySupportsMixing, i_param_size, &b_mix );
1015 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
1020 err = AudioHardwareRemovePropertyListener( kAudioHardwarePropertyDevices,
1025 msg_Err( p_aout, "AudioHardwareRemovePropertyListener failed: [%4.4s]", (char *)&err );
1028 if( p_sys->i_hog_pid == getpid() )
1030 p_sys->i_hog_pid = -1;
1031 i_param_size = sizeof( p_sys->i_hog_pid );
1032 err = AudioDeviceSetProperty( p_sys->i_selected_dev, 0, 0, FALSE,
1033 kAudioDevicePropertyHogMode, i_param_size, &p_sys->i_hog_pid );
1034 if( err != noErr ) msg_Err( p_aout, "Could not release hogmode: [%4.4s]", (char *)&err );
1037 if( p_sys ) free( p_sys );
1040 /*****************************************************************************
1041 * Play: nothing to do
1042 *****************************************************************************/
1043 static void Play( aout_instance_t * p_aout )
1048 /*****************************************************************************
1050 *****************************************************************************/
1051 static void Probe( aout_instance_t * p_aout )
1053 OSStatus err = noErr;
1054 UInt32 i = 0, i_param_size = 0;
1055 AudioDeviceID devid_def = 0;
1056 AudioDeviceID *p_devices = NULL;
1057 vlc_value_t val, text;
1059 struct aout_sys_t *p_sys = p_aout->output.p_sys;
1061 /* Get number of devices */
1062 err = AudioHardwareGetPropertyInfo( kAudioHardwarePropertyDevices,
1063 &i_param_size, NULL );
1066 msg_Err( p_aout, "could not get number of devices: [%4.4s]", (char *)&err );
1070 p_sys->i_devices = i_param_size / sizeof( AudioDeviceID );
1072 if( p_sys->i_devices < 1 )
1074 msg_Err( p_aout, "no devices found" );
1078 msg_Dbg( p_aout, "system has [%ld] device(s)", p_sys->i_devices );
1080 /* Allocate DeviceID array */
1081 p_devices = (AudioDeviceID*)malloc( sizeof(AudioDeviceID) * p_sys->i_devices );
1082 if( p_devices == NULL )
1084 msg_Err( p_aout, "out of memory" );
1088 /* Populate DeviceID array */
1089 err = AudioHardwareGetProperty( kAudioHardwarePropertyDevices,
1090 &i_param_size, p_devices );
1093 msg_Err( p_aout, "could not get the device ID's: [%4.4s]", (char *)&err );
1097 /* Find the ID of the default Device */
1098 i_param_size = sizeof( AudioDeviceID );
1099 err = AudioHardwareGetProperty( kAudioHardwarePropertyDefaultOutputDevice,
1100 &i_param_size, &devid_def );
1103 msg_Err( p_aout, "could not get default audio device: [%4.4s]", (char *)&err );
1106 p_sys->i_default_dev = devid_def;
1108 var_Create( p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE );
1109 text.psz_string = _("Audio Device");
1110 var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
1112 for( i = 0; i < p_sys->i_devices; i++ )
1117 /* Retrieve the length of the device name */
1118 err = AudioDeviceGetPropertyInfo(
1119 p_devices[i], 0, VLC_FALSE,
1120 kAudioDevicePropertyDeviceName,
1121 &i_param_size, NULL);
1122 if( err ) goto error;
1124 /* Retrieve the name of the device */
1125 psz_name = (char *)malloc( i_param_size );
1126 err = AudioDeviceGetProperty(
1127 p_devices[i], 0, VLC_FALSE,
1128 kAudioDevicePropertyDeviceName,
1129 &i_param_size, psz_name);
1130 if( err ) goto error;
1132 msg_Dbg( p_aout, "DevID: %#lx DevName: %s", p_devices[i], psz_name );
1134 if( !AudioDeviceHasOutput( p_devices[i]) )
1136 msg_Dbg( p_aout, "this device is INPUT only. skipping..." );
1140 val.i_int = (int)p_devices[i];
1141 text.psz_string = strdup( psz_name );
1142 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1143 if( p_sys->i_default_dev == p_devices[i] )
1145 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1146 var_Set( p_aout, "audio-device", val );
1149 if( AudioDeviceSupportsDigital( p_aout, p_devices[i] ) )
1151 val.i_int = (int)p_devices[i] | AOUT_VAR_SPDIF_FLAG;
1152 asprintf( &text.psz_string, "%s (Encoded Output)", psz_name );
1153 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1154 if( p_sys->i_default_dev == p_devices[i] && config_GetInt( p_aout, "spdif" ) )
1156 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1157 var_Set( p_aout, "audio-device", val );
1164 var_Get( p_aout->p_vlc, "macosx-audio-device", &val );
1165 msg_Dbg( p_aout, "device value override1: %#x", val.i_int );
1168 msg_Dbg( p_aout, "device value override2: %#x", val.i_int );
1169 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1170 var_Set( p_aout, "audio-device", val );
1173 var_AddCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
1175 /* attach a Listener so that we are notified of a change in the Device setup */
1176 err = AudioHardwareAddPropertyListener( kAudioHardwarePropertyDevices,
1182 msg_Dbg( p_aout, "succesful finish of deviceslist" );
1183 if( p_devices ) free( p_devices );
1187 var_Destroy( p_aout, "audio-device" );
1188 if( p_devices ) free( p_devices );
1192 /*****************************************************************************
1193 * AudioDeviceHasOutput: Checks if the Device actually provides any outputs at all
1194 *****************************************************************************/
1195 static int AudioDeviceHasOutput( AudioDeviceID i_dev_id )
1200 verify_noerr( AudioDeviceGetPropertyInfo( i_dev_id, 0, FALSE, kAudioDevicePropertyStreams, &dataSize, &isWritable) );
1201 if (dataSize == 0) return FALSE;
1206 /*****************************************************************************
1207 * AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
1208 *****************************************************************************/
1209 static int AudioDeviceSupportsDigital( aout_instance_t *p_aout, AudioDeviceID i_dev_id )
1211 OSStatus err = noErr;
1212 UInt32 i_param_size = 0;
1213 AudioStreamID *p_streams = NULL;
1214 int i = 0, i_streams = 0;
1215 vlc_bool_t b_return = VLC_FALSE;
1217 /* Retrieve all the output streams */
1218 err = AudioDeviceGetPropertyInfo( i_dev_id, 0, FALSE,
1219 kAudioDevicePropertyStreams,
1220 &i_param_size, NULL );
1223 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
1227 i_streams = i_param_size / sizeof( AudioStreamID );
1228 p_streams = (AudioStreamID *)malloc( i_param_size );
1229 if( p_streams == NULL )
1231 msg_Err( p_aout, "Out of memory" );
1235 err = AudioDeviceGetProperty( i_dev_id, 0, FALSE,
1236 kAudioDevicePropertyStreams,
1237 &i_param_size, p_streams );
1241 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
1245 for( i = 0; i < i_streams; i++ )
1247 if( AudioStreamSupportsDigital( p_aout, p_streams[i] ) )
1248 b_return = VLC_TRUE;
1251 if( p_streams ) free( p_streams );
1255 /*****************************************************************************
1256 * AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
1257 *****************************************************************************/
1258 static int AudioStreamSupportsDigital( aout_instance_t *p_aout, AudioStreamID i_stream_id )
1260 OSStatus err = noErr;
1261 UInt32 i_param_size = 0;
1262 AudioStreamBasicDescription *p_format_list = NULL;
1263 int i = 0, i_formats = 0;
1264 vlc_bool_t b_return = VLC_FALSE;
1266 /* Retrieve all the stream formats supported by each output stream */
1267 err = AudioStreamGetPropertyInfo( i_stream_id, 0,
1268 kAudioStreamPropertyPhysicalFormats,
1269 &i_param_size, NULL );
1272 msg_Err( p_aout, "could not get number of streamformats: [%4.4s]", (char *)&err );
1276 i_formats = i_param_size / sizeof( AudioStreamBasicDescription );
1277 msg_Dbg( p_aout, "number of formats: %d", i_formats );
1278 p_format_list = (AudioStreamBasicDescription *)malloc( i_param_size );
1279 if( p_format_list == NULL )
1281 msg_Err( p_aout, "Could not malloc the memory" );
1285 err = AudioStreamGetProperty( i_stream_id, 0,
1286 kAudioStreamPropertyPhysicalFormats,
1287 &i_param_size, p_format_list );
1290 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
1291 free( p_format_list);
1292 p_format_list = NULL;
1296 for( i = 0; i < i_formats; i++ )
1298 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "supported format: ", p_format_list[i] ) );
1300 if( p_format_list[i].mFormatID == 'IAC3' ||
1301 p_format_list[i].mFormatID == kAudioFormat60958AC3 )
1303 b_return = VLC_TRUE;
1307 if( p_format_list ) free( p_format_list );
1311 /*****************************************************************************
1312 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1313 * us to provide some more audio data.
1314 * Don't print anything during normal playback, calling blocking function from
1315 * this callback is not allowed.
1316 *****************************************************************************/
1317 static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
1318 AudioUnitRenderActionFlags *ioActionFlags,
1319 const AudioTimeStamp *inTimeStamp,
1320 unsigned int inBusNummer,
1321 unsigned int inNumberFrames,
1322 AudioBufferList *ioData )
1324 AudioTimeStamp host_time;
1325 mtime_t current_date = 0;
1326 uint32_t i_mData_bytes = 0;
1328 aout_instance_t * p_aout = (aout_instance_t *)_p_aout;
1329 struct aout_sys_t * p_sys = p_aout->output.p_sys;
1331 host_time.mFlags = kAudioTimeStampHostTimeValid;
1332 AudioDeviceTranslateTime( p_sys->i_selected_dev, inTimeStamp, &host_time );
1334 /* Check for the difference between the Device clock and mdate */
1335 p_sys->clock_diff = - (mtime_t)
1336 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
1337 p_sys->clock_diff += mdate();
1339 current_date = p_sys->clock_diff +
1340 AudioConvertHostTimeToNanos( host_time.mHostTime ) / 1000;
1341 //- ((mtime_t) 1000000 / p_aout->output.output.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1343 if( ioData == NULL && ioData->mNumberBuffers < 1 )
1345 msg_Err( p_aout, "no iodata or buffers");
1348 if( ioData->mNumberBuffers > 1 )
1349 msg_Err( p_aout, "well this is weird. seems like there is more than one buffer..." );
1352 if( p_sys->i_total_bytes > 0 )
1354 i_mData_bytes = __MIN( p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize );
1355 p_aout->p_vlc->pf_memcpy( ioData->mBuffers[0].mData, &p_sys->p_remainder_buffer[p_sys->i_read_bytes], i_mData_bytes );
1356 p_sys->i_read_bytes += i_mData_bytes;
1357 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->output.output.i_rate ) *
1358 ( i_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->output.output ) ); // 4 is fl32 specific
1360 if( p_sys->i_read_bytes >= p_sys->i_total_bytes )
1361 p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
1364 while( i_mData_bytes < ioData->mBuffers[0].mDataByteSize )
1366 /* We don't have enough data yet */
1367 aout_buffer_t * p_buffer;
1368 p_buffer = aout_OutputNextBuffer( p_aout, current_date , VLC_FALSE );
1370 if( p_buffer != NULL )
1372 uint32_t i_second_mData_bytes = __MIN( p_buffer->i_nb_bytes, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1374 p_aout->p_vlc->pf_memcpy( (uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes, p_buffer->p_buffer, i_second_mData_bytes );
1375 i_mData_bytes += i_second_mData_bytes;
1377 if( i_mData_bytes >= ioData->mBuffers[0].mDataByteSize )
1379 p_sys->i_total_bytes = p_buffer->i_nb_bytes - i_second_mData_bytes;
1380 p_aout->p_vlc->pf_memcpy( p_sys->p_remainder_buffer, &p_buffer->p_buffer[i_second_mData_bytes], p_sys->i_total_bytes );
1384 // update current_date
1385 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->output.output.i_rate ) *
1386 ( i_second_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->output.output ) ); // 4 is fl32 specific
1388 aout_BufferFree( p_buffer );
1392 p_aout->p_vlc->pf_memset( (uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes, 0, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1393 i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
1399 /*****************************************************************************
1400 * RenderCallbackSPDIF: callback for SPDIF audio output
1401 *****************************************************************************/
1402 static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
1403 const AudioTimeStamp * inNow,
1404 const void * inInputData,
1405 const AudioTimeStamp * inInputTime,
1406 AudioBufferList * outOutputData,
1407 const AudioTimeStamp * inOutputTime,
1408 void * threadGlobals )
1410 aout_buffer_t * p_buffer;
1411 mtime_t current_date;
1413 aout_instance_t * p_aout = (aout_instance_t *)threadGlobals;
1414 struct aout_sys_t * p_sys = p_aout->output.p_sys;
1416 /* Check for the difference between the Device clock and mdate */
1417 p_sys->clock_diff = - (mtime_t)
1418 AudioConvertHostTimeToNanos( inNow->mHostTime ) / 1000;
1419 p_sys->clock_diff += mdate();
1421 current_date = p_sys->clock_diff +
1422 AudioConvertHostTimeToNanos( inOutputTime->mHostTime ) / 1000;
1423 //- ((mtime_t) 1000000 / p_aout->output.output.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1425 p_buffer = aout_OutputNextBuffer( p_aout, current_date, VLC_TRUE );
1427 #define BUFFER outOutputData->mBuffers[p_sys->i_stream_index]
1428 if( p_buffer != NULL )
1430 if( (int)BUFFER.mDataByteSize != (int)p_buffer->i_nb_bytes)
1431 msg_Warn( p_aout, "bytesize: %d nb_bytes: %d", (int)BUFFER.mDataByteSize, (int)p_buffer->i_nb_bytes );
1433 /* move data into output data buffer */
1434 p_aout->p_vlc->pf_memcpy( BUFFER.mData,
1435 p_buffer->p_buffer, p_buffer->i_nb_bytes );
1436 aout_BufferFree( p_buffer );
1440 p_aout->p_vlc->pf_memset( BUFFER.mData, 0, BUFFER.mDataByteSize );
1447 /*****************************************************************************
1448 * HardwareListener: Warns us of changes in the list of registered devices
1449 *****************************************************************************/
1450 static OSStatus HardwareListener( AudioHardwarePropertyID inPropertyID,
1451 void * inClientData )
1453 OSStatus err = noErr;
1454 aout_instance_t *p_aout = (aout_instance_t *)inClientData;
1456 switch( inPropertyID )
1458 case kAudioHardwarePropertyDevices:
1460 /* something changed in the list of devices */
1461 /* We trigger the audio-device's aout_ChannelsRestart callback */
1462 var_Change( p_aout, "audio-device", VLC_VAR_TRIGGER_CALLBACKS, NULL, NULL );
1463 var_Destroy( p_aout, "audio-device" );
1471 /*****************************************************************************
1473 *****************************************************************************/
1474 static OSStatus StreamListener( AudioStreamID inStream,
1476 AudioDevicePropertyID inPropertyID,
1477 void * inClientData )
1479 OSStatus err = noErr;
1480 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1482 switch( inPropertyID )
1484 case kAudioStreamPropertyPhysicalFormat:
1485 vlc_mutex_lock( &w->lock );
1486 vlc_cond_signal( &w->cond );
1487 vlc_mutex_unlock( &w->lock );
1496 /*****************************************************************************
1497 * AudioDeviceCallback: Callback triggered when the audio-device variable is changed
1498 *****************************************************************************/
1499 static int AudioDeviceCallback( vlc_object_t *p_this, const char *psz_variable,
1500 vlc_value_t old_val, vlc_value_t new_val, void *param )
1502 aout_instance_t *p_aout = (aout_instance_t *)p_this;
1503 var_Set( p_aout->p_vlc, "macosx-audio-device", new_val );
1504 msg_Dbg( p_aout, "Set Device: %#x", new_val.i_int );
1505 return aout_ChannelsRestart( p_this, psz_variable, old_val, new_val, param );