mirror of
https://code.videolan.org/videolan/vlc
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827 lines
33 KiB
C
827 lines
33 KiB
C
/*****************************************************************************
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* auhal.c: AUHAL output plugin
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*****************************************************************************
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* Copyright (C) 2005 the VideoLAN team
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* $Id$
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*
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* Authors: Derk-Jan Hartman <hartman at videolan dot org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <string.h>
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#include <stdlib.h>
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#include <vlc/vlc.h>
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#include <vlc/aout.h>
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#include "aout_internal.h"
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#include <CoreAudio/CoreAudio.h>
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#include <CoreAudio/CoreAudioTypes.h>
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#include <AudioUnit/AudioUnitProperties.h>
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#include <AudioUnit/AudioUnitParameters.h>
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#include <AudioUnit/AudioOutputUnit.h>
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#include <AudioToolbox/AudioFormat.h>
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#define STREAM_FORMAT_MSG( pre, sfm ) \
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pre ":\nsamplerate: [%ld]\nFormatID: [%4.4s]\nFormatFlags: [%ld]\nBypesPerPacket: [%ld]\nFramesPerPacket: [%ld]\nBytesPerFrame: [%ld]\nChannelsPerFrame: [%ld]\nBitsPerChannel[%ld]", \
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(UInt32)sfm.mSampleRate, (char *)&sfm.mFormatID, \
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sfm.mFormatFlags, sfm.mBytesPerPacket, \
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sfm.mFramesPerPacket, sfm.mBytesPerFrame, \
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sfm.mChannelsPerFrame, sfm.mBitsPerChannel
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#define BUFSIZE 0xffffff
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/*****************************************************************************
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* aout_sys_t: private audio output method descriptor
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*****************************************************************************
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* This structure is part of the audio output thread descriptor.
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* It describes the CoreAudio specific properties of an output thread.
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*****************************************************************************/
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struct aout_sys_t
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{
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AudioDeviceID i_default_dev; /* Keeps DeviceID of defaultOutputDevice */
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AudioDeviceID i_selected_dev; /* Keeps DeviceID of the selected device */
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UInt32 i_devices; /* Number of CoreAudio Devices */
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vlc_bool_t b_supports_digital;/* Does the currently selected device support digital mode? */
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vlc_bool_t b_digital; /* Are we running in digital mode? */
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Component au_component; /* The Audiocomponent we use */
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AudioUnit au_unit; /* The AudioUnit we use */
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mtime_t clock_diff;
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uint8_t p_remainder_buffer[BUFSIZE];
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uint32_t i_read_bytes;
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uint32_t i_total_bytes;
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audio_date_t end_date_t;
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};
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/*****************************************************************************
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* Local prototypes.
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*****************************************************************************/
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static int Open ( vlc_object_t * );
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static void Close ( vlc_object_t * );
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static void Play ( aout_instance_t *);
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static int Probe ( aout_instance_t * );
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static int DeviceDigitalMode ( aout_instance_t *, AudioDeviceID );
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int AudioDeviceHasOutput ( AudioDeviceID );
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static int DigitalInit ( aout_instance_t * );
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static OSStatus RenderCallbackAnalog ( vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
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unsigned int, unsigned int, AudioBufferList *);
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static OSStatus HardwareListener ( AudioHardwarePropertyID, void *);
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define ADEV_TEXT N_("Audio Device")
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#define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
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"audio device, as listed in your 'Audio Device' menu. This device will " \
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"then be used by default for audio playback.")
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vlc_module_begin();
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set_shortname( "auhal" );
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set_description( _("HAL AudioUnit output") );
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set_capability( "audio output", 101 );
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set_category( CAT_AUDIO );
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set_subcategory( SUBCAT_AUDIO_AOUT );
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set_callbacks( Open, Close );
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//add_integer( "coreaudio-dev", -1, NULL, ADEV_TEXT, ADEV_LONGTEXT, VLC_FALSE );
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vlc_module_end();
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/*****************************************************************************
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* Open: open a HAL AudioUnit
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*****************************************************************************/
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static int Open( vlc_object_t * p_this )
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{
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OSStatus err = noErr;
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ComponentDescription desc;
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UInt32 i_param_size,i;
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struct aout_sys_t *p_sys;
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vlc_value_t val;
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aout_instance_t *p_aout = (aout_instance_t *)p_this;
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/* Allocate structure */
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p_sys = (struct aout_sys_t *)malloc( sizeof( struct aout_sys_t ) );
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if( p_sys == NULL )
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{
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msg_Err( p_aout, "out of memory" );
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return( VLC_ENOMEM );
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}
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memset( p_sys, 0, sizeof( struct aout_sys_t ) );
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p_sys->b_digital = VLC_FALSE; /* We assume we are not digital */
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p_aout->output.p_sys = p_sys;
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p_aout->output.pf_play = Play;
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aout_FormatPrint( p_aout, "VLC is looking for:\n", (audio_sample_format_t *)&p_aout->output.output );
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/* Build a list of devices */
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if( var_Type( p_aout, "audio-device" ) == 0 )
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{
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Probe( p_aout );
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/*if( Probe( p_aout ) != VLC_SUCCESS );
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{
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msg_Err( p_aout, "Probe failed" );
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free( p_sys );
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return VLC_EGENERIC;
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}*/
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}
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/* What device do we want? */
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if( var_Get( p_aout, "audio-device", &val ) < 0 )
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{
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msg_Err( p_aout, "audio-device var does not exist" );
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free( p_sys );
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return( VLC_ENOVAR );
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}
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p_sys->i_selected_dev = val.i_int;
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/* what is vlc format? if digital, take digital route else AUHAL route */
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DeviceDigitalMode( p_aout, p_sys->i_selected_dev );
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/*if( DeviceDigitalMode( p_aout, p_sys->i_selected_dev ) != VLC_SUCCESS );
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{
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msg_Err( p_aout, "DeviceDigitalMode failed" );
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free( p_sys );
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return VLC_EGENERIC;
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}
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*/
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if( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) && p_sys->b_supports_digital )
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{
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p_sys->b_digital = VLC_TRUE;
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p_aout->output.output.i_format = VLC_FOURCC('s','p','d','i');
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msg_Dbg( p_aout, "we found a digital stream, and we WANT a digital stream" );
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}
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else if( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) && !p_sys->b_supports_digital )
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{
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msg_Dbg( p_aout, "we had requested a digital stream, but it's not possible for this device" );
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}
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/* If analog only start setting up AUHAL */
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/* Lets go find our Component */
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desc.componentType = kAudioUnitType_Output;
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desc.componentSubType = kAudioUnitSubType_HALOutput;
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desc.componentManufacturer = kAudioUnitManufacturer_Apple;
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desc.componentFlags = 0;
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desc.componentFlagsMask = 0;
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p_sys->au_component = FindNextComponent( NULL, &desc );
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if( p_sys->au_component == NULL )
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{
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msg_Err( p_aout, "we cannot find our HAL component" );
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free( p_sys );
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return VLC_EGENERIC;
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}
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err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
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if( err )
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{
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msg_Err( p_aout, "we cannot find our HAL component" );
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free( p_sys );
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return VLC_EGENERIC;
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}
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/* Enable IO for the component */
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/* Set the device */
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verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
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kAudioOutputUnitProperty_CurrentDevice,
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kAudioUnitScope_Global,
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0,
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&p_sys->i_selected_dev,
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sizeof(p_sys->i_selected_dev)));
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/* Get the current format */
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AudioStreamBasicDescription DeviceFormat;
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i_param_size = sizeof(AudioStreamBasicDescription);
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verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
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kAudioUnitProperty_StreamFormat,
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kAudioUnitScope_Input,
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0,
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&DeviceFormat,
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&i_param_size ));
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msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is " , DeviceFormat ) );
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/* Get the channel layout */
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AudioChannelLayout *layout;
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verify_noerr( AudioUnitGetPropertyInfo( p_sys->au_unit,
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kAudioDevicePropertyPreferredChannelLayout,
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kAudioUnitScope_Output,
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0,
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&i_param_size,
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NULL ));
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layout = (AudioChannelLayout *)malloc( i_param_size);
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verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
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kAudioDevicePropertyPreferredChannelLayout,
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kAudioUnitScope_Output,
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0,
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layout,
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&i_param_size ));
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/* Lets fill out the ChannelLayout */
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if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
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{
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msg_Dbg( p_aout, "bitmap defined channellayout" );
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verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
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sizeof( UInt32), &layout->mChannelBitmap,
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&i_param_size,
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layout ));
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}
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else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
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{
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msg_Dbg( p_aout, "layouttags defined channellayout" );
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verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
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sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
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&i_param_size,
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layout ));
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}
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msg_Dbg( p_aout, "Layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
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p_aout->output.output.i_physical_channels = 0;
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for( i = 0; i < layout->mNumberChannelDescriptions; i++ )
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{
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msg_Dbg( p_aout, "This is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
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switch( layout->mChannelDescriptions[i].mChannelLabel )
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{
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case kAudioChannelLabel_Left:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_LEFT;
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continue;
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case kAudioChannelLabel_Right:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_RIGHT;
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continue;
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case kAudioChannelLabel_Center:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_CENTER;
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continue;
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case kAudioChannelLabel_LFEScreen:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_LFE;
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continue;
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case kAudioChannelLabel_LeftSurround:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARLEFT;
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continue;
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case kAudioChannelLabel_RightSurround:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARRIGHT;
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continue;
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case kAudioChannelLabel_RearSurroundLeft:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
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continue;
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case kAudioChannelLabel_RearSurroundRight:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
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continue;
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case kAudioChannelLabel_CenterSurround:
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p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARCENTER;
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continue;
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default:
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msg_Warn( p_aout, "Unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
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if( i == 0 )
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{
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msg_Warn( p_aout, "Probably no channellayout is set. force based on channelcount" );
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switch( layout->mNumberChannelDescriptions )
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{
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/* We make assumptions based on number of channels here.
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* Unfortunatly Apple has provided no 100% method to retrieve the speaker configuration */
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case 1:
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p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
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break;
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case 4:
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p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
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AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
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break;
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case 6:
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p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
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AOUT_CHAN_CENTER | AOUT_CHAN_LFE |
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AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
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break;
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case 7:
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p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
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AOUT_CHAN_CENTER | AOUT_CHAN_LFE |
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AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT | AOUT_CHAN_REARCENTER;
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break;
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case 8:
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p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
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AOUT_CHAN_CENTER | AOUT_CHAN_LFE |
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AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT |
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AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
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break;
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case 2:
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default:
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p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
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}
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}
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break;
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}
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}
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free( layout );
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msg_Dbg( p_aout, "defined %d physical channels for vlc core", aout_FormatNbChannels( &p_aout->output.output ) );
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msg_Dbg( p_aout, "%s", aout_FormatPrintChannels( &p_aout->output.output ));
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AudioChannelLayout new_layout;
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memset (&new_layout, 0, sizeof(new_layout));
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switch( aout_FormatNbChannels( &p_aout->output.output ) )
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{
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case 1:
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Mono;
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break;
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case 2:
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
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break;
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case 3:
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if( p_aout->output.output.i_physical_channels & AOUT_CHAN_CENTER )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_7; // L R C
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}
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else if( p_aout->output.output.i_physical_channels & AOUT_CHAN_LFE )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_4; // L R LFE
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}
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break;
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case 4:
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if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_LFE ) )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_10; // L R C LFE
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}
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else if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT ) )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R Ls Rs
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}
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else if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER ) )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_3; // L R C Cs
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}
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break;
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case 5:
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if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_CENTER ) )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_19; // L R Ls Rs C
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}
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else if( p_aout->output.output.i_physical_channels & ( AOUT_CHAN_LFE ) )
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{
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_18; // L R Ls Rs LFE
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}
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break;
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case 6:
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_DVD_20; // L R Ls Rs C LFE
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break;
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case 7:
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/* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_6_1_A; // L R C LFE Ls Rs Cs
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break;
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case 8:
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/* FIXME: This is incorrect. VLC uses the internal ordering: L R Lm Rm Lr Rr C LFE but this is wrong */
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new_layout.mChannelLayoutTag = kAudioChannelLayoutTag_MPEG_7_1_A; // L R C LFE Ls Rs Lc Rc
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break;
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}
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/* Set up the format to be used */
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DeviceFormat.mSampleRate = p_aout->output.output.i_rate;
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DeviceFormat.mFormatID = kAudioFormatLinearPCM;
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/* We use float 32. It's the best supported format by both VLC and Coreaudio */
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p_aout->output.output.i_format = VLC_FOURCC( 'f','l','3','2');
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DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
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DeviceFormat.mBitsPerChannel = 32;
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DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->output.output );
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/* Calculate framesizes and stuff */
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aout_FormatPrepare( &p_aout->output.output );
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DeviceFormat.mFramesPerPacket = 1;
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DeviceFormat.mBytesPerFrame = DeviceFormat.mBitsPerChannel * DeviceFormat.mChannelsPerFrame / 8;
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DeviceFormat.mBytesPerPacket = DeviceFormat.mBytesPerFrame * DeviceFormat.mFramesPerPacket;
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i_param_size = sizeof(AudioStreamBasicDescription);
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/* Set desired format (Use CAStreamBasicDescription )*/
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verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
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kAudioUnitProperty_StreamFormat,
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kAudioUnitScope_Input,
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0,
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&DeviceFormat,
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i_param_size ));
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msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
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/* Retrieve actual format??? */
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verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
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kAudioUnitProperty_StreamFormat,
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kAudioUnitScope_Input,
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0,
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&DeviceFormat,
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&i_param_size ));
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msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
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p_aout->output.i_nb_samples = 2048;
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aout_VolumeSoftInit( p_aout );
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/* Let's pray for the following operation to be atomic... */
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p_sys->clock_diff = - (mtime_t)
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AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
|
|
p_sys->clock_diff += mdate();
|
|
|
|
p_sys->i_read_bytes = 0;
|
|
p_sys->i_total_bytes = 0;
|
|
|
|
/* set the IOproc callback */
|
|
AURenderCallbackStruct input;
|
|
input.inputProc = (AURenderCallback) RenderCallbackAnalog;
|
|
input.inputProcRefCon = p_aout;
|
|
|
|
verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
|
|
kAudioUnitProperty_SetRenderCallback,
|
|
kAudioUnitScope_Input,
|
|
0, &input, sizeof( input ) ) );
|
|
|
|
input.inputProc = (AURenderCallback) RenderCallbackAnalog;
|
|
input.inputProcRefCon = p_aout;
|
|
|
|
/* Set the new_layout as the layout VLC feeds to the AU unit */
|
|
verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
|
|
kAudioUnitProperty_AudioChannelLayout,
|
|
kAudioUnitScope_Input,
|
|
0, &new_layout, sizeof(new_layout) ) );
|
|
|
|
/* AU initiliaze */
|
|
verify_noerr( AudioUnitInitialize(p_sys->au_unit) );
|
|
|
|
verify_noerr( AudioOutputUnitStart(p_sys->au_unit) );
|
|
return( VLC_SUCCESS );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Close: Close HAL AudioUnit
|
|
*****************************************************************************/
|
|
static void Close( vlc_object_t * p_this )
|
|
{
|
|
aout_instance_t *p_aout = (aout_instance_t *)p_this;
|
|
struct aout_sys_t *p_sys = p_aout->output.p_sys;
|
|
|
|
if( p_sys->au_unit )
|
|
{
|
|
verify_noerr( AudioOutputUnitStop( p_sys->au_unit ) );
|
|
verify_noerr( AudioUnitUninitialize( p_sys->au_unit ) );
|
|
verify_noerr( CloseComponent( p_sys->au_unit ) );
|
|
}
|
|
free( p_sys );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Play: nothing to do
|
|
*****************************************************************************/
|
|
static void Play( aout_instance_t * p_aout )
|
|
{
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* Probe
|
|
*****************************************************************************/
|
|
static int Probe( aout_instance_t * p_aout )
|
|
{
|
|
OSStatus err = noErr;
|
|
UInt32 i, i_param_size;
|
|
AudioDeviceID devid_def;
|
|
AudioDeviceID *p_devices = NULL;
|
|
vlc_value_t val, text;
|
|
|
|
struct aout_sys_t *p_sys = p_aout->output.p_sys;
|
|
|
|
/* Get number of devices */
|
|
err = AudioHardwareGetPropertyInfo( kAudioHardwarePropertyDevices,
|
|
&i_param_size, NULL );
|
|
if( err != noErr )
|
|
{
|
|
msg_Err( p_aout, "could not get number of devices: [%4.4s]", (char *)&err );
|
|
goto error;
|
|
}
|
|
|
|
p_sys->i_devices = i_param_size / sizeof( AudioDeviceID );
|
|
|
|
if( p_sys->i_devices < 1 )
|
|
{
|
|
msg_Err( p_aout, "no devices found" );
|
|
goto error;
|
|
}
|
|
|
|
msg_Dbg( p_aout, "system has [%ld] device(s)", p_sys->i_devices );
|
|
|
|
/* Allocate DeviceID array */
|
|
p_devices = (AudioDeviceID *)malloc( i_param_size );
|
|
if( p_devices == NULL )
|
|
{
|
|
msg_Err( p_aout, "out of memory" );
|
|
goto error;
|
|
}
|
|
|
|
/* Populate DeviceID array */
|
|
err = AudioHardwareGetProperty( kAudioHardwarePropertyDevices,
|
|
&i_param_size, (void *)p_devices );
|
|
if( err != noErr )
|
|
{
|
|
msg_Err( p_aout, "could not get the device ID's: [%4.4s]", (char *)&err );
|
|
goto error;
|
|
}
|
|
|
|
/* Find the ID of the default Device */
|
|
i_param_size = sizeof( AudioDeviceID );
|
|
err = AudioHardwareGetProperty( kAudioHardwarePropertyDefaultOutputDevice,
|
|
&i_param_size, (void *)&devid_def );
|
|
if( err != noErr )
|
|
{
|
|
msg_Err( p_aout, "could not get default audio device: [%4.4s]", (char *)&err );
|
|
goto error;
|
|
}
|
|
p_sys->i_default_dev = devid_def;
|
|
|
|
var_Create( p_aout, "audio-device", VLC_VAR_INTEGER|VLC_VAR_HASCHOICE );
|
|
text.psz_string = _("Audio Device");
|
|
var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
|
|
|
|
for( i = 0; i < p_sys->i_devices; i++ )
|
|
{
|
|
char psz_devuid[1024];
|
|
char psz_name[1024];
|
|
CFStringRef devUID;
|
|
|
|
i_param_size = sizeof psz_name;
|
|
err = AudioDeviceGetProperty(
|
|
p_devices[i], 0, VLC_FALSE,
|
|
kAudioDevicePropertyDeviceName,
|
|
&i_param_size, psz_name);
|
|
if( err )
|
|
goto error;
|
|
|
|
i_param_size = sizeof(CFStringRef);
|
|
err = AudioDeviceGetProperty(
|
|
p_devices[i], 0, VLC_FALSE,
|
|
kAudioDevicePropertyDeviceUID,
|
|
&i_param_size, &devUID);
|
|
if( err )
|
|
goto error;
|
|
|
|
CFStringGetCString( devUID, psz_devuid, sizeof psz_devuid, CFStringGetSystemEncoding() );
|
|
msg_Dbg( p_aout, "DevID: %lu DevName: %s DevUID: %s", p_devices[i], psz_name, psz_devuid );
|
|
CFRelease( devUID );
|
|
|
|
if( !AudioDeviceHasOutput( p_devices[i]) )
|
|
{
|
|
msg_Dbg( p_aout, "this device is INPUT only. skipping..." );
|
|
continue;
|
|
}
|
|
|
|
val.i_int = (int) p_devices[i];
|
|
text.psz_string = psz_name;
|
|
var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
|
|
if( devid_def == p_devices[i] )
|
|
{
|
|
var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
|
|
var_Set( p_aout, "audio-device", val );
|
|
}
|
|
}
|
|
var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );
|
|
|
|
/* attach a Listener so that we are notified of a change in the Device setup */
|
|
/* err = AudioHardwareAddPropertyListener( kAudioHardwarePropertyDevices,
|
|
HardwareListener,
|
|
(void *)p_aout );
|
|
if( err )
|
|
goto error;*/
|
|
|
|
msg_Dbg( p_aout, "succesful finish of deviceslist" );
|
|
if( p_devices ) free( p_devices );
|
|
return (VLC_SUCCESS);
|
|
|
|
error:
|
|
var_Destroy( p_aout, "audio-device" );
|
|
if( p_devices ) free( p_devices );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* DeviceDigitalMode: Check i_dev_id for digital stream support.
|
|
*****************************************************************************/
|
|
static int DeviceDigitalMode( aout_instance_t *p_aout, AudioDeviceID i_dev_id )
|
|
{
|
|
OSStatus err = noErr;
|
|
UInt32 i_param_size;
|
|
AudioStreamBasicDescription *p_format_list;
|
|
int i, i_formats;
|
|
struct aout_sys_t *p_sys = p_aout->output.p_sys;
|
|
|
|
p_sys->b_supports_digital = VLC_FALSE;
|
|
|
|
err = AudioDeviceGetPropertyInfo( i_dev_id, 0, FALSE,
|
|
kAudioDevicePropertyStreamFormats,
|
|
&i_param_size, NULL );
|
|
if( err != noErr )
|
|
{
|
|
msg_Err( p_aout, "could not get number of streamsformats: [%4.4s]", (char *)&err );
|
|
return( VLC_EGENERIC );
|
|
}
|
|
|
|
i_formats = i_param_size / sizeof( AudioStreamBasicDescription );
|
|
p_format_list = (AudioStreamBasicDescription *)malloc( i_param_size );
|
|
if( p_format_list == NULL )
|
|
{
|
|
return( VLC_ENOMEM );
|
|
}
|
|
|
|
err = AudioDeviceGetProperty( i_dev_id, 0, FALSE,
|
|
kAudioDevicePropertyStreamFormats,
|
|
&i_param_size, (void *)p_format_list );
|
|
if( err != noErr )
|
|
{
|
|
msg_Err( p_aout, "could not get the list of formats: [%4.4s]", (char *)&err );
|
|
return( VLC_EGENERIC );
|
|
}
|
|
|
|
for( i = 0; i < i_formats; i++ )
|
|
{
|
|
msg_Dbg( p_aout, STREAM_FORMAT_MSG( "supported format", p_format_list[i] ) );
|
|
|
|
if( p_format_list[i].mFormatID == 'IAC3' ||
|
|
p_format_list[i].mFormatID == kAudioFormat60958AC3 )
|
|
{
|
|
p_sys->b_supports_digital = VLC_TRUE;
|
|
msg_Dbg( p_aout, "this device supports a digital stream" );
|
|
break;
|
|
}
|
|
}
|
|
|
|
free( (void *)p_format_list );
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* RenderCallbackAnalog: This function is called everytime the AudioUnit wants
|
|
* us to provide some more audio data.
|
|
* Don't print anything during normal playback, calling blocking function from
|
|
* this callback is not allowed.
|
|
*****************************************************************************/
|
|
static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
|
|
AudioUnitRenderActionFlags *ioActionFlags,
|
|
const AudioTimeStamp *inTimeStamp,
|
|
unsigned int inBusNummer,
|
|
unsigned int inNumberFrames,
|
|
AudioBufferList *ioData )
|
|
{
|
|
AudioTimeStamp host_time;
|
|
mtime_t current_date = 0;
|
|
uint32_t i_mData_bytes = 0;
|
|
|
|
aout_instance_t * p_aout = (aout_instance_t *)_p_aout;
|
|
struct aout_sys_t * p_sys = p_aout->output.p_sys;
|
|
|
|
host_time.mFlags = kAudioTimeStampHostTimeValid;
|
|
AudioDeviceTranslateTime( p_sys->i_selected_dev, inTimeStamp, &host_time );
|
|
|
|
p_sys->clock_diff = - (mtime_t)
|
|
AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
|
|
p_sys->clock_diff += mdate();
|
|
|
|
current_date = p_sys->clock_diff +
|
|
AudioConvertHostTimeToNanos( host_time.mHostTime ) / 1000;
|
|
|
|
if( ioData == NULL && ioData->mNumberBuffers < 1 )
|
|
{
|
|
msg_Err( p_aout, "no iodata or buffers");
|
|
return 0;
|
|
}
|
|
if( ioData->mNumberBuffers > 1 )
|
|
msg_Err( p_aout, "well this is weird. seems like there is more than one buffer..." );
|
|
|
|
|
|
if( p_sys->i_total_bytes > 0 )
|
|
{
|
|
i_mData_bytes = __MIN( p_sys->i_total_bytes - p_sys->i_read_bytes, ioData->mBuffers[0].mDataByteSize );
|
|
p_aout->p_vlc->pf_memcpy( ioData->mBuffers[0].mData, &p_sys->p_remainder_buffer[p_sys->i_read_bytes], i_mData_bytes );
|
|
p_sys->i_read_bytes += i_mData_bytes;
|
|
current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->output.output.i_rate ) *
|
|
( i_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->output.output ) ); // 4 is fl32 specific
|
|
|
|
if( p_sys->i_read_bytes >= p_sys->i_total_bytes )
|
|
p_sys->i_read_bytes = p_sys->i_total_bytes = 0;
|
|
}
|
|
|
|
while( i_mData_bytes < ioData->mBuffers[0].mDataByteSize )
|
|
{
|
|
/* We don't have enough data yet */
|
|
aout_buffer_t * p_buffer;
|
|
p_buffer = aout_OutputNextBuffer( p_aout, current_date , VLC_FALSE );
|
|
|
|
if( p_buffer != NULL )
|
|
{
|
|
uint32_t i_second_mData_bytes = __MIN( p_buffer->i_nb_bytes, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
|
|
|
|
p_aout->p_vlc->pf_memcpy( (uint8_t *)ioData->mBuffers[0].mData + i_mData_bytes, p_buffer->p_buffer, i_second_mData_bytes );
|
|
i_mData_bytes += i_second_mData_bytes;
|
|
|
|
if( i_mData_bytes >= ioData->mBuffers[0].mDataByteSize )
|
|
{
|
|
p_sys->i_total_bytes = p_buffer->i_nb_bytes - i_second_mData_bytes;
|
|
p_aout->p_vlc->pf_memcpy( p_sys->p_remainder_buffer, &p_buffer->p_buffer[i_second_mData_bytes], p_sys->i_total_bytes );
|
|
}
|
|
else
|
|
{
|
|
// update current_date
|
|
current_date += (mtime_t) ( (mtime_t) 1000000 / p_aout->output.output.i_rate ) *
|
|
( i_second_mData_bytes / 4 / aout_FormatNbChannels( &p_aout->output.output ) ); // 4 is fl32 specific
|
|
}
|
|
aout_BufferFree( p_buffer );
|
|
}
|
|
else
|
|
{
|
|
p_aout->p_vlc->pf_memset( (uint8_t *)ioData->mBuffers[0].mData +i_mData_bytes, 0, ioData->mBuffers[0].mDataByteSize - i_mData_bytes );
|
|
i_mData_bytes += ioData->mBuffers[0].mDataByteSize - i_mData_bytes;
|
|
}
|
|
}
|
|
return( noErr );
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* Setup a digital stream
|
|
*****************************************************************************/
|
|
static int DigitalInit( aout_instance_t * p_aout )
|
|
{
|
|
OSStatus err = noErr;
|
|
UInt32 i, i_param_size;
|
|
AudioDeviceID devid_def;
|
|
AudioDeviceID *p_devices = NULL;
|
|
vlc_value_t val, text;
|
|
|
|
struct aout_sys_t *p_sys = p_aout->output.p_sys;
|
|
|
|
|
|
|
|
return (VLC_SUCCESS);
|
|
|
|
error:
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
int AudioDeviceHasOutput( AudioDeviceID i_dev_id )
|
|
{
|
|
UInt32 dataSize;
|
|
Boolean isWritable;
|
|
|
|
verify_noerr( AudioDeviceGetPropertyInfo( i_dev_id, 0, FALSE, kAudioDevicePropertyStreams, &dataSize, &isWritable) );
|
|
if (dataSize == 0) return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* HardwareListener: Warns us of changes in the list of registered devices
|
|
*****************************************************************************/
|
|
static OSStatus HardwareListener( AudioHardwarePropertyID inPropertyID,
|
|
void * inClientData )
|
|
{
|
|
OSStatus err = noErr;
|
|
|
|
aout_instance_t *p_aout = (aout_instance_t *)inClientData;
|
|
/* struct aout_sys_t *p_sys = p_aout->output.p_sys; */
|
|
|
|
switch( inPropertyID )
|
|
{
|
|
case kAudioHardwarePropertyDevices:
|
|
{
|
|
/* something changed in the list of devices */
|
|
/* We trigger the audio-device's aout_ChannelsRestart callback */
|
|
var_Change( p_aout, "audio-device", VLC_VAR_TRIGGER_CALLBACKS, NULL, NULL );
|
|
}
|
|
break;
|
|
}
|
|
|
|
return( err );
|
|
}
|