1 /*****************************************************************************
2 * auhal.c: AUHAL and Coreaudio output plugin
3 *****************************************************************************
4 * Copyright (C) 2005, 2011 the VideoLAN team
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
8 * Felix Paul Kühne <fkuehne at videolan dot org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_dialog.h> // dialog_Fatal
36 #include <vlc_aout.h> // aout_*
38 #include <AudioUnit/AudioUnit.h> // AudioDeviceID
39 #include <AudioToolbox/AudioFormat.h> // AudioFormatGetProperty
42 # define verify_noerr(a) assert((a) == noErr)
45 #define STREAM_FORMAT_MSG( pre, sfm ) \
46 pre "[%f][%4.4s][%u][%u][%u][%u][%u][%u]", \
47 sfm.mSampleRate, (char *)&sfm.mFormatID, \
48 (unsigned int)sfm.mFormatFlags, (unsigned int)sfm.mBytesPerPacket, \
49 (unsigned int)sfm.mFramesPerPacket, (unsigned int)sfm.mBytesPerFrame, \
50 (unsigned int)sfm.mChannelsPerFrame, (unsigned int)sfm.mBitsPerChannel
53 #define STREAM_FORMAT_MSG_FULL( pre, sfm ) \
54 pre ":\nsamplerate: [%"PRIu32"]\nFormatID: [%4.4s]\nFormatFlags: [%"PRIu32"]\nBypesPerPacket: [%"PRIu32"]\nFramesPerPacket: [%"PRIu32"]\nBytesPerFrame: [%u]\nChannelsPerFrame: [%u]\nBitsPerChannel[%u]", \
55 (UInt32)sfm.mSampleRate, (char *)&sfm.mFormatID, \
56 sfm.mFormatFlags, sfm.mBytesPerPacket, \
57 sfm.mFramesPerPacket, sfm.mBytesPerFrame, \
58 sfm.mChannelsPerFrame, sfm.mBitsPerChannel
61 #define FRAMESIZE 2048
62 #define BUFSIZE (FRAMESIZE * 8) * 8
63 #define AOUT_VAR_SPDIF_FLAG 0xf00000
67 * - clean up the debug info
68 * - be better at changing stream setup or devices setup changes while playing.
72 /*****************************************************************************
73 * aout_sys_t: private audio output method descriptor
74 *****************************************************************************
75 * This structure is part of the audio output thread descriptor.
76 * It describes the CoreAudio specific properties of an output thread.
77 *****************************************************************************/
81 AudioDeviceID i_default_dev; /* DeviceID of defaultOutputDevice */
82 AudioDeviceID i_selected_dev; /* DeviceID of the selected device */
83 AudioDeviceIOProcID i_procID; /* DeviceID of current device */
84 UInt32 i_devices; /* Number of CoreAudio Devices */
85 bool b_supports_digital; /* Does the currently selected device support digital mode? */
86 bool b_digital; /* Are we running in digital mode? */
87 mtime_t clock_diff; /* Difference between VLC clock and Device clock */
90 Component au_component; /* The Audiocomponent we use */
91 AudioUnit au_unit; /* The AudioUnit we use */
92 uint8_t p_remainder_buffer[BUFSIZE];
93 uint32_t i_read_bytes;
94 uint32_t i_total_bytes;
96 /* CoreAudio SPDIF mode specific */
97 pid_t i_hog_pid; /* The keep the pid of our hog status */
98 AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
99 int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
100 AudioStreamBasicDescription stream_format; /* The format we changed the stream to */
101 AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
102 bool b_revert; /* Wether we need to revert the stream format */
103 bool b_changed_mixing; /* Wether we need to set the mixing mode back */
106 /*****************************************************************************
108 *****************************************************************************/
109 static int Open ( vlc_object_t * );
110 static int OpenAnalog ( audio_output_t * );
111 static int OpenSPDIF ( audio_output_t * );
112 static void Close ( vlc_object_t * );
114 static void Probe ( audio_output_t * );
116 static int AudioDeviceHasOutput ( AudioDeviceID );
117 static int AudioDeviceSupportsDigital( audio_output_t *, AudioDeviceID );
118 static int AudioStreamSupportsDigital( audio_output_t *, AudioStreamID );
119 static int AudioStreamChangeFormat ( audio_output_t *, AudioStreamID, AudioStreamBasicDescription );
121 static OSStatus RenderCallbackAnalog ( vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
122 unsigned int, unsigned int, AudioBufferList *);
123 static OSStatus RenderCallbackSPDIF ( AudioDeviceID, const AudioTimeStamp *, const void *, const AudioTimeStamp *,
124 AudioBufferList *, const AudioTimeStamp *, void * );
125 static OSStatus HardwareListener ( AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void * );
126 static OSStatus StreamListener ( AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void * );
127 static int AudioDeviceCallback ( vlc_object_t *, const char *,
128 vlc_value_t, vlc_value_t, void * );
131 /*****************************************************************************
133 *****************************************************************************/
134 #define ADEV_TEXT N_("Audio Device")
135 #define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
136 "audio device, as listed in your 'Audio Device' menu. This device will " \
137 "then be used by default for audio playback.")
140 set_shortname( "auhal" )
141 set_description( N_("HAL AudioUnit output") )
142 set_capability( "audio output", 101 )
143 set_category( CAT_AUDIO )
144 set_subcategory( SUBCAT_AUDIO_AOUT )
145 set_callbacks( Open, Close )
146 add_integer( "macosx-audio-device", 0, ADEV_TEXT, ADEV_LONGTEXT, false )
149 /*****************************************************************************
150 * Open: open macosx audio output
151 *****************************************************************************/
152 static int Open( vlc_object_t * p_this )
154 OSStatus err = noErr;
155 UInt32 i_param_size = 0;
156 struct aout_sys_t *p_sys = NULL;
158 audio_output_t *p_aout = (audio_output_t *)p_this;
160 /* Use int here, to match kAudioDevicePropertyDeviceIsAlive
164 /* Allocate structure */
165 p_aout->sys = malloc( sizeof( aout_sys_t ) );
166 if( p_aout->sys == NULL )
170 p_sys->i_default_dev = 0;
171 p_sys->i_selected_dev = 0;
172 p_sys->i_devices = 0;
173 p_sys->b_supports_digital = false;
174 p_sys->b_digital = false;
175 p_sys->au_component = NULL;
176 p_sys->au_unit = NULL;
177 p_sys->clock_diff = (mtime_t) 0;
178 p_sys->i_read_bytes = 0;
179 p_sys->i_total_bytes = 0;
180 p_sys->i_hog_pid = -1;
181 p_sys->i_stream_id = 0;
182 p_sys->i_stream_index = -1;
183 p_sys->b_revert = false;
184 p_sys->b_changed_mixing = false;
185 memset( p_sys->p_remainder_buffer, 0, sizeof(uint8_t) * BUFSIZE );
187 p_aout->pf_play = aout_PacketPlay;
188 p_aout->pf_pause = aout_PacketPause;
189 p_aout->pf_flush = aout_PacketFlush;
191 aout_FormatPrint( p_aout, "VLC is looking for:", &p_aout->format );
193 /* Persistent device variable */
194 if( var_Type( p_aout->p_libvlc, "macosx-audio-device" ) == 0 )
196 var_CreateGetInteger( p_aout->p_libvlc, "macosx-audio-device" );
199 /* Build a list of devices */
200 if( var_Type( p_aout, "audio-device" ) == 0 )
205 /* What device do we want? */
206 if( var_Get( p_aout, "audio-device", &val ) < 0 )
208 msg_Err( p_aout, "audio-device var does not exist. device probe failed." );
212 p_sys->i_selected_dev = val.i_int & ~AOUT_VAR_SPDIF_FLAG; /* remove SPDIF flag to get the true DeviceID */
213 p_sys->b_supports_digital = ( val.i_int & AOUT_VAR_SPDIF_FLAG ) ? true : false;
214 if( p_sys->b_supports_digital )
215 msg_Dbg( p_aout, "audio device supports digital output" );
217 msg_Dbg( p_aout, "audio device does not support digital output" );
219 /* Check if the desired device is alive and usable */
220 /* TODO: add a callback to the device to alert us if the device dies */
221 i_param_size = sizeof( b_alive );
222 AudioObjectPropertyAddress audioDeviceAliveAddress = { kAudioDevicePropertyDeviceIsAlive,
223 kAudioDevicePropertyScopeOutput,
224 kAudioObjectPropertyElementMaster };
225 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceAliveAddress, 0, NULL, &i_param_size, &b_alive );
229 /* Be tolerant, only give a warning here */
230 msg_Warn( p_aout, "could not check whether device [0x%x] is alive: %4.4s",
231 (unsigned int)p_sys->i_selected_dev, (char *)&err );
237 msg_Warn( p_aout, "selected audio device is not alive, switching to default device" );
238 p_sys->i_selected_dev = p_sys->i_default_dev;
241 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
242 kAudioDevicePropertyScopeOutput,
243 kAudioObjectPropertyElementMaster };
244 i_param_size = sizeof( p_sys->i_hog_pid );
245 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, &i_param_size, &p_sys->i_hog_pid );
248 /* This is not a fatal error. Some drivers simply don't support this property */
249 msg_Warn( p_aout, "could not check whether device is hogged: %4.4s",
251 p_sys->i_hog_pid = -1;
254 if( p_sys->i_hog_pid != -1 && p_sys->i_hog_pid != getpid() )
256 msg_Err( p_aout, "Selected audio device is exclusively in use by another program." );
257 dialog_Fatal( p_aout, _("Audio output failed"), "%s",
258 _("The selected audio output device is exclusively in "
259 "use by another program.") );
263 /* Check for Digital mode or Analog output mode */
264 if( AOUT_FMT_SPDIF( &p_aout->format ) && p_sys->b_supports_digital )
266 if( OpenSPDIF( p_aout ) )
268 msg_Dbg( p_aout, "digital output successfully opened" );
274 if( OpenAnalog( p_aout ) )
276 msg_Dbg( p_aout, "analog output successfully opened" );
282 /* If we reach this, this aout has failed */
283 msg_Err( p_aout, "opening the auhal output failed" );
284 var_Destroy( p_aout, "audio-device" );
289 /*****************************************************************************
290 * Open: open and setup a HAL AudioUnit to do analog (multichannel) audio output
291 *****************************************************************************/
292 static int OpenAnalog( audio_output_t *p_aout )
294 struct aout_sys_t *p_sys = p_aout->sys;
295 OSStatus err = noErr;
296 UInt32 i_param_size = 0;
298 ComponentDescription desc;
299 AudioStreamBasicDescription DeviceFormat;
300 AudioChannelLayout *layout;
301 AudioChannelLayout new_layout;
302 AURenderCallbackStruct input;
304 /* Lets go find our Component */
305 desc.componentType = kAudioUnitType_Output;
306 desc.componentSubType = kAudioUnitSubType_HALOutput;
307 desc.componentManufacturer = kAudioUnitManufacturer_Apple;
308 desc.componentFlags = 0;
309 desc.componentFlagsMask = 0;
311 p_sys->au_component = FindNextComponent( NULL, &desc );
312 if( p_sys->au_component == NULL )
314 msg_Warn( p_aout, "we cannot find our HAL component" );
318 err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
321 msg_Warn( p_aout, "we cannot open our HAL component" );
325 /* Set the device we will use for this output unit */
326 err = AudioUnitSetProperty( p_sys->au_unit,
327 kAudioOutputUnitProperty_CurrentDevice,
328 kAudioUnitScope_Global,
330 &p_sys->i_selected_dev,
331 sizeof( AudioDeviceID ));
335 msg_Warn( p_aout, "we cannot select the audio device" );
339 /* Get the current format */
340 i_param_size = sizeof(AudioStreamBasicDescription);
342 err = AudioUnitGetProperty( p_sys->au_unit,
343 kAudioUnitProperty_StreamFormat,
344 kAudioUnitScope_Input,
349 if( err != noErr ) return false;
350 else msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is: ", DeviceFormat ) );
352 /* Get the channel layout of the device side of the unit (vlc -> unit -> device) */
353 err = AudioUnitGetPropertyInfo( p_sys->au_unit,
354 kAudioDevicePropertyPreferredChannelLayout,
355 kAudioUnitScope_Output,
362 layout = (AudioChannelLayout *)malloc( i_param_size);
364 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
365 kAudioDevicePropertyPreferredChannelLayout,
366 kAudioUnitScope_Output,
371 /* We need to "fill out" the ChannelLayout, because there are multiple ways that it can be set */
372 if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
374 /* bitmap defined channellayout */
375 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
376 sizeof( UInt32), &layout->mChannelBitmap,
380 else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
382 /* layouttags defined channellayout */
383 verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
384 sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
389 msg_Dbg( p_aout, "layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
391 /* Initialize the VLC core channel count */
392 p_aout->format.i_physical_channels = 0;
393 i_original = p_aout->format.i_original_channels & AOUT_CHAN_PHYSMASK;
395 if( i_original == AOUT_CHAN_CENTER || layout->mNumberChannelDescriptions < 2 )
397 /* We only need Mono or cannot output more than 1 channel */
398 p_aout->format.i_physical_channels = AOUT_CHAN_CENTER;
400 else if( i_original == (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT) || layout->mNumberChannelDescriptions < 3 )
402 /* We only need Stereo or cannot output more than 2 channels */
403 p_aout->format.i_physical_channels = AOUT_CHAN_RIGHT | AOUT_CHAN_LEFT;
407 /* We want more than stereo and we can do that */
408 for( unsigned int i = 0; i < layout->mNumberChannelDescriptions; i++ )
410 msg_Dbg( p_aout, "this is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
412 switch( layout->mChannelDescriptions[i].mChannelLabel )
414 case kAudioChannelLabel_Left:
415 p_aout->format.i_physical_channels |= AOUT_CHAN_LEFT;
417 case kAudioChannelLabel_Right:
418 p_aout->format.i_physical_channels |= AOUT_CHAN_RIGHT;
420 case kAudioChannelLabel_Center:
421 p_aout->format.i_physical_channels |= AOUT_CHAN_CENTER;
423 case kAudioChannelLabel_LFEScreen:
424 p_aout->format.i_physical_channels |= AOUT_CHAN_LFE;
426 case kAudioChannelLabel_LeftSurround:
427 p_aout->format.i_physical_channels |= AOUT_CHAN_REARLEFT;
429 case kAudioChannelLabel_RightSurround:
430 p_aout->format.i_physical_channels |= AOUT_CHAN_REARRIGHT;
432 case kAudioChannelLabel_RearSurroundLeft:
433 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
435 case kAudioChannelLabel_RearSurroundRight:
436 p_aout->format.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
438 case kAudioChannelLabel_CenterSurround:
439 p_aout->format.i_physical_channels |= AOUT_CHAN_REARCENTER;
442 msg_Warn( p_aout, "unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
445 if( p_aout->format.i_physical_channels == 0 )
447 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
448 msg_Err( p_aout, "You should configure your speaker layout with Audio Midi Setup Utility in /Applications/Utilities. Now using Stereo mode." );
449 dialog_Fatal( p_aout, _("Audio device is not configured"), "%s",
450 _("You should configure your speaker layout with "
451 "the \"Audio Midi Setup\" utility in /Applications/"
452 "Utilities. Stereo mode is being used now.") );
459 msg_Warn( p_aout, "this driver does not support kAudioDevicePropertyPreferredChannelLayout. BAD DRIVER AUTHOR !!!" );
460 p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
463 msg_Dbg( p_aout, "selected %d physical channels for device output", aout_FormatNbChannels( &p_aout->format ) );
464 msg_Dbg( p_aout, "VLC will output: %s", aout_FormatPrintChannels( &p_aout->format ));
466 memset (&new_layout, 0, sizeof(new_layout));
467 switch( aout_FormatNbChannels( &p_aout->format ) )
470 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
473 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
476 if( p_aout->format.i_physical_channels & AOUT_CHAN_CENTER )
478 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
480 else if( p_aout->format.i_physical_channels & AOUT_CHAN_LFE )
482 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
486 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_LFE ) )
488 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
490 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT ) )
492 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
494 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER ) )
496 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
500 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_CENTER ) )
502 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
504 else if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
506 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
510 if( p_aout->format.i_physical_channels & ( AOUT_CHAN_LFE ) )
512 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
516 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_AudioUnit_6_0; // L R Ls Rs C Cs
520 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
521 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
524 /* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
525 new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
529 /* Set up the format to be used */
530 DeviceFormat.mSampleRate = p_aout->format.i_rate;
531 DeviceFormat.mFormatID = kAudioFormatLinearPCM;
533 /* We use float 32. It's the best supported format by both VLC and Coreaudio */
534 p_aout->format.i_format = VLC_CODEC_FL32;
535 DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
536 DeviceFormat.mBitsPerChannel = 32;
537 DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->format );
539 /* Calculate framesizes and stuff */
540 DeviceFormat.mFramesPerPacket = 1;
541 DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
542 DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
544 /* Set the desired format */
545 i_param_size = sizeof(AudioStreamBasicDescription);
546 verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
547 kAudioUnitProperty_StreamFormat,
548 kAudioUnitScope_Input,
553 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
555 /* Retrieve actual format */
556 verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
557 kAudioUnitProperty_StreamFormat,
558 kAudioUnitScope_Input,
563 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
565 /* Do the last VLC aout setups */
566 aout_FormatPrepare( &p_aout->format );
567 aout_PacketInit( p_aout, &p_sys->packet, FRAMESIZE );
568 aout_VolumeSoftInit( p_aout );
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 UInt32 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 /* Set mixable to false if we are allowed to */
634 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
635 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
636 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size );
637 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
639 if( !err && b_writeable )
642 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
643 p_sys->b_changed_mixing = true;
648 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
652 /* Get a list of all the streams on this device */
653 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
654 err = AudioObjectGetPropertyDataSize( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size );
657 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
661 i_streams = i_param_size / sizeof( AudioStreamID );
662 p_streams = (AudioStreamID *)malloc( i_param_size );
663 if( p_streams == NULL )
666 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &streamsAddress, 0, NULL, &i_param_size, p_streams );
670 msg_Err( p_aout, "could not get number of streams: [%4.4s]", (char *)&err );
675 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
676 for( unsigned i = 0; i < i_streams && p_sys->i_stream_index < 0 ; i++ )
678 /* Find a stream with a cac3 stream */
679 AudioStreamRangedDescription *p_format_list = NULL;
681 bool b_digital = false;
683 /* Retrieve all the stream formats supported by each output stream */
684 err = AudioObjectGetPropertyDataSize( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size );
687 msg_Err( p_aout, "OpenSPDIF: could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
691 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
692 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
693 if( p_format_list == NULL )
696 err = AudioObjectGetPropertyData( p_streams[i], &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
699 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
700 free( p_format_list );
704 /* Check if one of the supported formats is a digital format */
705 for( int j = 0; j < i_formats; j++ )
707 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
708 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 )
717 /* if this stream supports a digital (cac3) format, then go set it. */
718 int i_requested_rate_format = -1;
719 int i_current_rate_format = -1;
720 int i_backup_rate_format = -1;
722 p_sys->i_stream_id = p_streams[i];
723 p_sys->i_stream_index = i;
725 if( !p_sys->b_revert )
727 /* Retrieve the original format of this stream first if not done so already */
728 i_param_size = sizeof( p_sys->sfmt_revert );
729 err = AudioObjectGetPropertyData( p_sys->i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, &p_sys->sfmt_revert );
732 msg_Err( p_aout, "could not retrieve the original streamformat: [%4.4s]", (char *)&err );
735 p_sys->b_revert = true;
738 for( int j = 0; j < i_formats; j++ )
740 if( p_format_list[j].mFormat.mFormatID == 'IAC3' ||
741 p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 )
743 if( p_format_list[j].mFormat.mSampleRate == p_aout->format.i_rate )
745 i_requested_rate_format = j;
748 else if( p_format_list[j].mFormat.mSampleRate == p_sys->sfmt_revert.mSampleRate )
750 i_current_rate_format = j;
754 if( i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate )
755 i_backup_rate_format = j;
761 if( i_requested_rate_format >= 0 ) /* We prefer to output at the samplerate of the original audio */
762 p_sys->stream_format = p_format_list[i_requested_rate_format].mFormat;
763 else if( i_current_rate_format >= 0 ) /* If not possible, we will try to use the current samplerate of the device */
764 p_sys->stream_format = p_format_list[i_current_rate_format].mFormat;
765 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) */
767 free( p_format_list );
771 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "original stream format: ", p_sys->sfmt_revert ) );
773 if( !AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->stream_format ) )
776 /* Set the format flags */
777 if( p_sys->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian )
778 p_aout->format.i_format = VLC_CODEC_SPDIFB;
780 p_aout->format.i_format = VLC_CODEC_SPDIFL;
781 p_aout->format.i_bytes_per_frame = AOUT_SPDIF_SIZE;
782 p_aout->format.i_frame_length = A52_FRAME_NB;
783 p_aout->format.i_rate = (unsigned int)p_sys->stream_format.mSampleRate;
784 aout_FormatPrepare( &p_aout->format );
785 aout_PacketInit( p_aout, &p_sys->packet, A52_FRAME_NB );
786 aout_VolumeNoneInit( p_aout );
788 /* Add IOProc callback */
789 err = AudioDeviceCreateIOProcID( p_sys->i_selected_dev,
790 (AudioDeviceIOProc)RenderCallbackSPDIF,
795 msg_Err( p_aout, "AudioDeviceCreateIOProcID failed: [%4.4s]", (char *)&err );
796 aout_PacketDestroy (p_aout);
800 /* Check for the difference between the Device clock and mdate */
801 p_sys->clock_diff = - (mtime_t)
802 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
803 p_sys->clock_diff += mdate();
806 err = AudioDeviceStart( p_sys->i_selected_dev, p_sys->i_procID );
809 msg_Err( p_aout, "AudioDeviceStart failed: [%4.4s]", (char *)&err );
811 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
815 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
817 aout_PacketDestroy (p_aout);
825 /*****************************************************************************
826 * Close: Close HAL AudioUnit
827 *****************************************************************************/
828 static void Close( vlc_object_t * p_this )
830 audio_output_t *p_aout = (audio_output_t *)p_this;
831 struct aout_sys_t *p_sys = p_aout->sys;
832 OSStatus err = noErr;
833 UInt32 i_param_size = 0;
837 verify_noerr( AudioOutputUnitStop( p_sys->au_unit ) );
838 verify_noerr( AudioUnitUninitialize( p_sys->au_unit ) );
839 verify_noerr( CloseComponent( p_sys->au_unit ) );
842 if( p_sys->b_digital )
845 err = AudioDeviceStop( p_sys->i_selected_dev,
849 msg_Err( p_aout, "AudioDeviceStop failed: [%4.4s]", (char *)&err );
852 /* Remove IOProc callback */
853 err = AudioDeviceDestroyIOProcID( p_sys->i_selected_dev,
857 msg_Err( p_aout, "AudioDeviceDestroyIOProcID failed: [%4.4s]", (char *)&err );
860 if( p_sys->b_revert )
862 AudioStreamChangeFormat( p_aout, p_sys->i_stream_id, p_sys->sfmt_revert );
865 if( p_sys->b_changed_mixing && p_sys->sfmt_revert.mFormatID != kAudioFormat60958AC3 )
869 /* Revert mixable to true if we are allowed to */
870 AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = { kAudioDevicePropertySupportsMixing , kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
871 err = AudioObjectIsPropertySettable( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, &b_writeable );
872 err = AudioObjectGetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, &i_param_size, &b_mix );
874 if( !err && b_writeable )
876 msg_Dbg( p_aout, "mixable is: %d", b_mix );
878 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceSupportsMixingAddress, 0, NULL, i_param_size, &b_mix );
883 msg_Err( p_aout, "failed to set mixmode: [%4.4s]", (char *)&err );
888 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
889 err = AudioObjectRemovePropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, NULL );
893 msg_Err( p_aout, "AudioHardwareRemovePropertyListener failed: [%4.4s]", (char *)&err );
896 if( p_sys->i_hog_pid == getpid() )
898 p_sys->i_hog_pid = -1;
899 i_param_size = sizeof( p_sys->i_hog_pid );
900 AudioObjectPropertyAddress audioDeviceHogModeAddress = { kAudioDevicePropertyHogMode,
901 kAudioDevicePropertyScopeOutput,
902 kAudioObjectPropertyElementMaster };
903 err = AudioObjectSetPropertyData( p_sys->i_selected_dev, &audioDeviceHogModeAddress, 0, NULL, i_param_size, &p_sys->i_hog_pid );
904 if( err != noErr ) msg_Err( p_aout, "Could not release hogmode: [%4.4s]", (char *)&err );
907 aout_PacketDestroy( p_aout );
911 /*****************************************************************************
912 * Probe: Check which devices the OS has, and add them to our audio-device menu
913 *****************************************************************************/
914 static void Probe( audio_output_t * p_aout )
916 OSStatus err = noErr;
917 UInt32 i_param_size = 0;
918 AudioDeviceID devid_def = 0;
919 AudioDeviceID *p_devices = NULL;
920 vlc_value_t val, text;
922 struct aout_sys_t *p_sys = p_aout->sys;
924 /* Get number of devices */
925 AudioObjectPropertyAddress audioDevicesAddress = { kAudioHardwarePropertyDevices, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
926 err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size);
929 msg_Err( p_aout, "Could not get number of devices: [%s]", (char *)&err );
933 p_sys->i_devices = i_param_size / sizeof( AudioDeviceID );
935 if( p_sys->i_devices < 1 )
937 msg_Err( p_aout, "No audio output devices were found." );
940 msg_Dbg( p_aout, "found %u audio device(s)", (unsigned)p_sys->i_devices );
942 /* Allocate DeviceID array */
943 p_devices = (AudioDeviceID*)malloc( sizeof(AudioDeviceID) * p_sys->i_devices );
944 if( p_devices == NULL )
947 /* Populate DeviceID array */
948 err = AudioObjectGetPropertyData( kAudioObjectSystemObject, &audioDevicesAddress, 0, NULL, &i_param_size, p_devices );
951 msg_Err( p_aout, "could not get the device IDs: [%s]", (char *)&err );
955 /* Find the ID of the default Device */
956 AudioObjectPropertyAddress defaultDeviceAddress = { kAudioHardwarePropertyDefaultOutputDevice, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
957 i_param_size = sizeof( AudioDeviceID );
958 err= AudioObjectGetPropertyData( kAudioObjectSystemObject, &defaultDeviceAddress, 0, NULL, &i_param_size, &devid_def );
961 msg_Err( p_aout, "could not get default audio device: [%s]", (char *)&err );
964 p_sys->i_default_dev = devid_def;
966 var_Create( p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE );
967 text.psz_string = (char*)_("Audio Device");
968 var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
970 AudioObjectPropertyAddress deviceNameAddress = { kAudioDevicePropertyDeviceName, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
972 for( unsigned int i = 0; i < p_sys->i_devices; i++ )
977 /* Retrieve the length of the device name */
978 err = AudioObjectGetPropertyDataSize( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size );
979 if( err ) goto error;
981 /* Retrieve the name of the device */
982 psz_name = (char *)malloc( i_param_size );
983 err = AudioObjectGetPropertyData( p_devices[i], &deviceNameAddress, 0, NULL, &i_param_size, psz_name );
984 if( err ) goto error;
986 msg_Dbg( p_aout, "DevID: %u DevName: %s", (unsigned)p_devices[i], psz_name );
988 if( !AudioDeviceHasOutput( p_devices[i]) )
990 msg_Dbg( p_aout, "this device is INPUT only. skipping..." );
995 /* Add the menu entries */
996 val.i_int = (int)p_devices[i];
997 text.psz_string = psz_name;
998 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
999 text.psz_string = NULL;
1000 if( p_sys->i_default_dev == p_devices[i] )
1002 /* The default device is the selected device normally */
1003 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1004 var_Set( p_aout, "audio-device", val );
1007 if( AudioDeviceSupportsDigital( p_aout, p_devices[i] ) )
1009 val.i_int = (int)p_devices[i] | AOUT_VAR_SPDIF_FLAG;
1010 if( asprintf( &text.psz_string, _("%s (Encoded Output)"), psz_name ) != -1 )
1012 var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
1013 free( text.psz_string );
1014 if( p_sys->i_default_dev == p_devices[i]
1015 && var_InheritBool( p_aout, "spdif" ) )
1017 /* We selected to prefer SPDIF output if available
1018 * then this "dummy" entry should be selected */
1019 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1020 var_Set( p_aout, "audio-device", val );
1028 /* If a device is already "preselected", then use this device */
1029 var_Get( p_aout->p_libvlc, "macosx-audio-device", &val );
1032 var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
1033 var_Set( p_aout, "audio-device", val );
1036 /* If we change the device we want to use, we should renegotiate the audio chain */
1037 var_AddCallback( p_aout, "audio-device", AudioDeviceCallback, NULL );
1039 /* Attach a Listener so that we are notified of a change in the Device setup */
1040 err = AudioObjectAddPropertyListener( kAudioObjectSystemObject, &audioDevicesAddress, HardwareListener, (void *)p_aout );
1048 msg_Warn( p_aout, "audio device already in use" );
1053 /*****************************************************************************
1054 * AudioDeviceHasOutput: Checks if the Device actually provides any outputs at all
1055 *****************************************************************************/
1056 static int AudioDeviceHasOutput( AudioDeviceID i_dev_id )
1060 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1061 verify_noerr( AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &dataSize ) );
1062 if (dataSize == 0) return FALSE;
1067 /*****************************************************************************
1068 * AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
1069 *****************************************************************************/
1070 static int AudioDeviceSupportsDigital( audio_output_t *p_aout, AudioDeviceID i_dev_id )
1072 OSStatus err = noErr;
1073 UInt32 i_param_size = 0;
1074 AudioStreamID *p_streams = NULL;
1076 bool b_return = false;
1078 /* Retrieve all the output streams */
1079 AudioObjectPropertyAddress streamsAddress = { kAudioDevicePropertyStreams, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1080 err = AudioObjectGetPropertyDataSize( i_dev_id, &streamsAddress, 0, NULL, &i_param_size );
1083 msg_Err( p_aout, "could not get number of streams: [%s] (%i)", (char *)&err, (int32_t)err );
1087 i_streams = i_param_size / sizeof( AudioStreamID );
1088 p_streams = (AudioStreamID *)malloc( i_param_size );
1089 if( p_streams == NULL )
1092 err = AudioObjectGetPropertyData( i_dev_id, &streamsAddress, 0, NULL, &i_param_size, p_streams );
1095 msg_Err( p_aout, "could not get list of streams: [%s]", (char *)&err );
1099 for( int i = 0; i < i_streams; i++ )
1101 if( AudioStreamSupportsDigital( p_aout, p_streams[i] ) )
1109 /*****************************************************************************
1110 * AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
1111 *****************************************************************************/
1112 static int AudioStreamSupportsDigital( audio_output_t *p_aout, AudioStreamID i_stream_id )
1114 OSStatus err = noErr;
1115 UInt32 i_param_size = 0;
1116 AudioStreamRangedDescription *p_format_list = NULL;
1118 bool b_return = false;
1120 /* Retrieve all the stream formats supported by each output stream */
1121 AudioObjectPropertyAddress physicalFormatsAddress = { kAudioStreamPropertyAvailablePhysicalFormats, kAudioObjectPropertyScopeGlobal, 0 };
1122 err = AudioObjectGetPropertyDataSize( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size );
1125 msg_Err( p_aout, "could not get number of streamformats: [%s] (%i)", (char *)&err, (int32_t)err );
1129 i_formats = i_param_size / sizeof( AudioStreamRangedDescription );
1130 msg_Dbg( p_aout, "found %i stream formats", i_formats );
1132 p_format_list = (AudioStreamRangedDescription *)malloc( i_param_size );
1133 if( p_format_list == NULL )
1136 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatsAddress, 0, NULL, &i_param_size, p_format_list );
1139 msg_Err( p_aout, "could not get the list of streamformats: [%4.4s]", (char *)&err );
1140 free( p_format_list);
1141 p_format_list = NULL;
1145 for( int i = 0; i < i_formats; i++ )
1147 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "supported format: ", p_format_list[i].mFormat ) );
1149 if( p_format_list[i].mFormat.mFormatID == 'IAC3' ||
1150 p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 )
1156 free( p_format_list );
1160 /*****************************************************************************
1161 * AudioStreamChangeFormat: Change i_stream_id to change_format
1162 *****************************************************************************/
1163 static int AudioStreamChangeFormat( audio_output_t *p_aout, AudioStreamID i_stream_id, AudioStreamBasicDescription change_format )
1165 OSStatus err = noErr;
1166 UInt32 i_param_size = 0;
1168 AudioObjectPropertyAddress physicalFormatAddress = { kAudioStreamPropertyPhysicalFormat, kAudioDevicePropertyScopeOutput, kAudioObjectPropertyElementMaster };
1170 struct { vlc_mutex_t lock; vlc_cond_t cond; } w;
1172 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "setting stream format: ", change_format ) );
1174 /* Condition because SetProperty is asynchronious */
1175 vlc_cond_init( &w.cond );
1176 vlc_mutex_init( &w.lock );
1177 vlc_mutex_lock( &w.lock );
1179 /* Install the callback */
1180 err = AudioObjectAddPropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, (void *)&w );
1183 msg_Err( p_aout, "AudioObjectAddPropertyListener for kAudioStreamPropertyPhysicalFormat failed: [%4.4s]", (char *)&err );
1187 /* change the format */
1188 err = AudioObjectSetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, sizeof( AudioStreamBasicDescription ),
1192 msg_Err( p_aout, "could not set the stream format: [%4.4s]", (char *)&err );
1196 /* The AudioStreamSetProperty is not only asynchronious (requiring the locks)
1197 * it is also not atomic in its behaviour.
1198 * Therefore we check 5 times before we really give up.
1199 * FIXME: failing isn't actually implemented yet. */
1200 for( int i = 0; i < 5; i++ )
1202 AudioStreamBasicDescription actual_format;
1203 mtime_t timeout = mdate() + 500000;
1205 if( vlc_cond_timedwait( &w.cond, &w.lock, timeout ) )
1207 msg_Dbg( p_aout, "reached timeout" );
1210 i_param_size = sizeof( AudioStreamBasicDescription );
1211 err = AudioObjectGetPropertyData( i_stream_id, &physicalFormatAddress, 0, NULL, &i_param_size, &actual_format );
1213 msg_Dbg( p_aout, STREAM_FORMAT_MSG( "actual format in use: ", actual_format ) );
1214 if( actual_format.mSampleRate == change_format.mSampleRate &&
1215 actual_format.mFormatID == change_format.mFormatID &&
1216 actual_format.mFramesPerPacket == change_format.mFramesPerPacket )
1218 /* The right format is now active */
1221 /* We need to check again */
1224 /* Removing the property listener */
1225 err = AudioObjectRemovePropertyListener( i_stream_id, &physicalFormatAddress, StreamListener, NULL );
1228 msg_Err( p_aout, "AudioStreamRemovePropertyListener failed: [%4.4s]", (char *)&err );
1232 /* Destroy the lock and condition */
1233 vlc_mutex_unlock( &w.lock );
1234 vlc_mutex_destroy( &w.lock );
1235 vlc_cond_destroy( &w.cond );
1240 /*****************************************************************************
1241 * RenderCallbackAnalog: This function is called everytime the AudioUnit wants
1242 * us to provide some more audio data.
1243 * Don't print anything during normal playback, calling blocking function from
1244 * this callback is not allowed.
1245 *****************************************************************************/
1246 static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
1247 AudioUnitRenderActionFlags *ioActionFlags,
1248 const AudioTimeStamp *inTimeStamp,
1249 unsigned int inBusNumber,
1250 unsigned int inNumberFrames,
1251 AudioBufferList *ioData )
1253 AudioTimeStamp host_time;
1254 mtime_t current_date = 0;
1255 uint32_t i_mData_bytes = 0;
1257 audio_output_t * p_aout = (audio_output_t *)_p_aout;
1258 struct aout_sys_t * p_sys = p_aout->sys;
1260 VLC_UNUSED(ioActionFlags);
1261 VLC_UNUSED(inBusNumber);
1262 VLC_UNUSED(inNumberFrames);
1264 host_time.mFlags = kAudioTimeStampHostTimeValid;
1265 AudioDeviceTranslateTime( p_sys->i_selected_dev, inTimeStamp, &host_time );
1267 /* Check for the difference between the Device clock and mdate */
1268 p_sys->clock_diff = - (mtime_t)
1269 AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
1270 p_sys->clock_diff += mdate();
1272 current_date = p_sys->clock_diff +
1273 AudioConvertHostTimeToNanos( host_time.mHostTime ) / 1000;
1274 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1276 if( ioData == NULL && ioData->mNumberBuffers < 1 )
1278 msg_Err( p_aout, "no iodata or buffers");
1281 if( ioData->mNumberBuffers > 1 )
1282 msg_Err( p_aout, "well this is weird. seems like there is more than one buffer..." );
1285 if( p_sys->i_total_bytes > 0 )
1287 i_mData_bytes = __MIN( p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize );
1288 vlc_memcpy( ioData->mBuffers[0].mData,
1289 &p_sys->p_remainder_buffer[p_sys->i_read_bytes],
1291 p_sys->i_read_bytes += i_mData_bytes;
1292 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1293 ( i_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1295 if( p_sys->i_read_bytes >= p_sys->i_total_bytes )
1296 p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
1299 while( i_mData_bytes < ioData->mBuffers[0].mDataByteSize )
1301 /* We don't have enough data yet */
1302 aout_buffer_t * p_buffer;
1303 p_buffer = aout_PacketNext( p_aout, current_date );
1305 if( p_buffer != NULL )
1307 uint32_t i_second_mData_bytes = __MIN( p_buffer->i_buffer, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1309 vlc_memcpy( (uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes,
1310 p_buffer->p_buffer, i_second_mData_bytes );
1311 i_mData_bytes += i_second_mData_bytes;
1313 if( i_mData_bytes >= ioData->mBuffers[0].mDataByteSize )
1315 p_sys->i_total_bytes = p_buffer->i_buffer - i_second_mData_bytes;
1316 vlc_memcpy( p_sys->p_remainder_buffer,
1317 &p_buffer->p_buffer[i_second_mData_bytes],
1318 p_sys->i_total_bytes );
1319 aout_BufferFree( p_buffer );
1324 /* update current_date */
1325 current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->format.i_rate ) *
1326 ( i_second_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->format ) ); // 4 is fl32 specific
1328 aout_BufferFree( p_buffer );
1332 vlc_memset( (uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes,
1333 0,ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
1334 i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
1340 /*****************************************************************************
1341 * RenderCallbackSPDIF: callback for SPDIF audio output
1342 *****************************************************************************/
1343 static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
1344 const AudioTimeStamp * inNow,
1345 const void * inInputData,
1346 const AudioTimeStamp * inInputTime,
1347 AudioBufferList * outOutputData,
1348 const AudioTimeStamp * inOutputTime,
1349 void * threadGlobals )
1351 aout_buffer_t * p_buffer;
1352 mtime_t current_date;
1354 audio_output_t * p_aout = (audio_output_t *)threadGlobals;
1355 struct aout_sys_t * p_sys = p_aout->sys;
1357 VLC_UNUSED(inDevice);
1358 VLC_UNUSED(inInputData);
1359 VLC_UNUSED(inInputTime);
1361 /* Check for the difference between the Device clock and mdate */
1362 p_sys->clock_diff = - (mtime_t)
1363 AudioConvertHostTimeToNanos( inNow->mHostTime ) / 1000;
1364 p_sys->clock_diff += mdate();
1366 current_date = p_sys->clock_diff +
1367 AudioConvertHostTimeToNanos( inOutputTime->mHostTime ) / 1000;
1368 //- ((mtime_t) 1000000 / p_aout->format.i_rate * 31 ); // 31 = Latency in Frames. retrieve somewhere
1370 p_buffer = aout_PacketNext( p_aout, current_date );
1372 #define BUFFER outOutputData->mBuffers[p_sys->i_stream_index]
1373 if( p_buffer != NULL )
1375 if( (int)BUFFER.mDataByteSize != (int)p_buffer->i_buffer)
1376 msg_Warn( p_aout, "bytesize: %d nb_bytes: %d", (int)BUFFER.mDataByteSize, (int)p_buffer->i_buffer );
1378 /* move data into output data buffer */
1379 vlc_memcpy( BUFFER.mData, p_buffer->p_buffer, p_buffer->i_buffer );
1380 aout_BufferFree( p_buffer );
1384 vlc_memset( BUFFER.mData, 0, BUFFER.mDataByteSize );
1391 /*****************************************************************************
1392 * HardwareListener: Warns us of changes in the list of registered devices
1393 *****************************************************************************/
1394 static OSStatus HardwareListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1396 OSStatus err = noErr;
1397 audio_output_t *p_aout = (audio_output_t *)inClientData;
1398 VLC_UNUSED(inObjectID);
1400 for ( unsigned int i = 0; i < inNumberAddresses; i++ )
1402 if( inAddresses[i].mSelector == kAudioHardwarePropertyDevices )
1404 /* something changed in the list of devices */
1405 /* We trigger the audio-device's aout_ChannelsRestart callback */
1406 var_TriggerCallback( p_aout, "audio-device" );
1407 var_Destroy( p_aout, "audio-device" );
1414 /*****************************************************************************
1416 *****************************************************************************/
1417 static OSStatus StreamListener( AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void*inClientData)
1419 OSStatus err = noErr;
1420 struct { vlc_mutex_t lock; vlc_cond_t cond; } * w = inClientData;
1422 VLC_UNUSED(inObjectID);
1424 for ( unsigned int i = 0; i < inNumberAddresses; i++ )
1426 if( inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat )
1428 vlc_mutex_lock( &w->lock );
1429 vlc_cond_signal( &w->cond );
1430 vlc_mutex_unlock( &w->lock );
1436 /*****************************************************************************
1437 * AudioDeviceCallback: Callback triggered when the audio-device variable is changed
1438 *****************************************************************************/
1439 static int AudioDeviceCallback( vlc_object_t *p_this, const char *psz_variable,
1440 vlc_value_t old_val, vlc_value_t new_val, void *param )
1442 audio_output_t *p_aout = (audio_output_t *)p_this;
1443 var_Set( p_aout->p_libvlc, "macosx-audio-device", new_val );
1444 msg_Dbg( p_aout, "Set Device: %#"PRIx64, new_val.i_int );
1445 return aout_ChannelsRestart( p_this, psz_variable, old_val, new_val, param );