--- /dev/null
+/*****************************************************************************
+ * auhal.c: AUHAL output plugin
+ *****************************************************************************
+ * Copyright (C) 2005 VideoLAN
+ * $Id: coreaudio.c 10101 2005-03-02 16:47:31Z robux4 $
+ *
+ * Authors: Derk-Jan Hartman <hartman at videolan dot org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <string.h>
+#include <stdlib.h>
+
+#include <vlc/vlc.h>
+#include <vlc/aout.h>
+
+#include "aout_internal.h"
+
+#include <CoreAudio/CoreAudio.h>
+#include <CoreAudio/CoreAudioTypes.h>
+#include <AudioUnit/AudioUnitProperties.h>
+#include <AudioUnit/AudioUnitParameters.h>
+#include <AudioUnit/AudioOutputUnit.h>
+#include <AudioToolbox/AudioFormat.h>
+
+#define STREAM_FORMAT_MSG( pre, sfm ) \
+ pre ":\nsamplerate: [%ld]\nFormatID: [%4.4s]\nFormatFlags: [%ld]\nBypesPerPacket: [%ld]\nFramesPerPacket: [%ld]\nBytesPerFrame: [%ld]\nChannelsPerFrame: [%ld]\nBitsPerChannel[%ld]", \
+ (UInt32)sfm.mSampleRate, (char *)&sfm.mFormatID, \
+ sfm.mFormatFlags, sfm.mBytesPerPacket, \
+ sfm.mFramesPerPacket, sfm.mBytesPerFrame, \
+ sfm.mChannelsPerFrame, sfm.mBitsPerChannel
+
+
+/*****************************************************************************
+ * aout_sys_t: private audio output method descriptor
+ *****************************************************************************
+ * This structure is part of the audio output thread descriptor.
+ * It describes the CoreAudio specific properties of an output thread.
+ *****************************************************************************/
+struct aout_sys_t
+{
+ AudioDeviceID i_default_dev; /* Keeps DeviceID of defaultOutputDevice */
+ AudioDeviceID i_selected_dev; /* Keeps DeviceID of the selected device */
+ UInt32 i_devices; /* Number of CoreAudio Devices */
+ vlc_bool_t b_supports_digital;/* Does the currently selected device support digital mode? */
+ vlc_bool_t b_digital; /* Are we running in digital mode? */
+ Component au_component; /* The Audiocomponent we use */
+ AudioUnit au_unit; /* The AudioUnit we use */
+ mtime_t clock_diff;
+};
+
+/*****************************************************************************
+ * Local prototypes.
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+static void Play ( aout_instance_t *);
+
+static int DevicesList ( aout_instance_t * );
+static int DeviceDigitalMode ( aout_instance_t *, AudioDeviceID );
+static int DigitalInit ( aout_instance_t * );
+
+static OSStatus RenderCallbackAnalog ( vlc_object_t *, AudioUnitRenderActionFlags *, const AudioTimeStamp *,
+ unsigned int, unsigned int, AudioBufferList *);
+static OSStatus HardwareListener ( AudioHardwarePropertyID, void *);
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+#define ADEV_TEXT N_("Audio Device")
+#define ADEV_LONGTEXT N_("Choose a number corresponding to the number of an " \
+ "audio device, as listed in your 'Audio Device' menu. This device will " \
+ "then be used by default for audio playback.")
+
+vlc_module_begin();
+ set_shortname( "auhal" );
+ set_description( _("HAL AudioUnit output") );
+ set_capability( "audio output", 50 );
+ set_category( CAT_AUDIO );
+ set_subcategory( SUBCAT_AUDIO_AOUT );
+ set_callbacks( Open, Close );
+ //add_integer( "coreaudio-dev", -1, NULL, ADEV_TEXT, ADEV_LONGTEXT, VLC_FALSE );
+vlc_module_end();
+
+/*****************************************************************************
+ * Open: open a HAL AudioUnit
+ *****************************************************************************/
+static int Open( vlc_object_t * p_this )
+{
+ OSStatus err = noErr;
+ ComponentDescription desc;
+ UInt32 i_param_size,i;
+ struct aout_sys_t *p_sys;
+ vlc_value_t val;
+ aout_instance_t *p_aout = (aout_instance_t *)p_this;
+
+ /* Allocate structure */
+ p_sys = (struct aout_sys_t *)malloc( sizeof( struct aout_sys_t ) );
+ if( p_sys == NULL )
+ {
+ msg_Err( p_aout, "out of memory" );
+ return( VLC_ENOMEM );
+ }
+
+ memset( p_sys, 0, sizeof( struct aout_sys_t ) );
+
+ p_sys->b_digital = VLC_FALSE; /* We assume we are not digital */
+
+ p_aout->output.p_sys = p_sys;
+ p_aout->output.pf_play = Play;
+
+ aout_FormatPrint( p_aout, "VLC is looking for:\n", (audio_sample_format_t *)&p_aout->output.output );
+
+ /* Build a list of devices */
+ if( var_Type( p_aout, "audio-device" ) == 0 )
+ {
+ DevicesList( p_aout );
+ /*if( DevicesList( p_aout ) != VLC_SUCCESS );
+ {
+ msg_Err( p_aout, "DevicesList failed" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }*/
+ }
+
+ /* What device do we want? */
+ if( var_Get( p_aout, "audio-device", &val ) < 0 )
+ {
+ msg_Err( p_aout, "audio-device var does not exist" );
+ free( p_sys );
+ return( VLC_ENOVAR );
+ }
+ p_sys->i_selected_dev = val.i_int;
+
+ /* what is vlc format? if digital, take digital route else AUHAL route */
+ DeviceDigitalMode( p_aout, p_sys->i_selected_dev );
+ /*if( DeviceDigitalMode( p_aout, p_sys->i_selected_dev ) != VLC_SUCCESS );
+ {
+ msg_Err( p_aout, "DeviceDigitalMode failed" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ */
+ if( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) && p_sys->b_supports_digital )
+ {
+ p_sys->b_digital = VLC_TRUE;
+ p_aout->output.output.i_format = VLC_FOURCC('s','p','d','i');
+ msg_Dbg( p_aout, "we found a digital stream, and we WANT a digital stream" );
+ }
+ else if( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) && !p_sys->b_supports_digital )
+ {
+ msg_Dbg( p_aout, "we had requested a digital stream, but it's not possible for this device" );
+ }
+
+ /* If analog only start setting up AUHAL */
+
+ /* Lets go find our Component */
+ desc.componentType = kAudioUnitType_Output;
+ desc.componentSubType = kAudioUnitSubType_HALOutput;
+ desc.componentManufacturer = kAudioUnitManufacturer_Apple;
+ desc.componentFlags = 0;
+ desc.componentFlagsMask = 0;
+
+ p_sys->au_component = FindNextComponent( NULL, &desc );
+ if( p_sys->au_component == NULL )
+ {
+ msg_Err( p_aout, "we cannot find our HAL component" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+
+ err = OpenAComponent( p_sys->au_component, &p_sys->au_unit );
+ if( err )
+ {
+
+ msg_Err( p_aout, "we cannot find our HAL component" );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+
+ /* Enable IO for the component */
+
+ /* Set the device */
+ verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
+ kAudioOutputUnitProperty_CurrentDevice,
+ kAudioUnitScope_Global,
+ 0,
+ &p_sys->i_selected_dev,
+ sizeof(p_sys->i_selected_dev)));
+
+ /* Get the current format */
+ AudioStreamBasicDescription DeviceFormat;
+
+ i_param_size = sizeof(AudioStreamBasicDescription);
+
+ verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
+ kAudioUnitProperty_StreamFormat,
+ kAudioUnitScope_Input,
+ 0,
+ &DeviceFormat,
+ &i_param_size ));
+
+ msg_Dbg( p_aout, STREAM_FORMAT_MSG( "current format is " , DeviceFormat ) );
+
+ /* Get the channel layout */
+ AudioChannelLayout *layout;
+ verify_noerr( AudioUnitGetPropertyInfo( p_sys->au_unit,
+ kAudioDevicePropertyPreferredChannelLayout,
+ kAudioUnitScope_Output,
+ 0,
+ &i_param_size,
+ NULL ));
+
+ layout = (AudioChannelLayout *)malloc( i_param_size);
+
+ verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
+ kAudioDevicePropertyPreferredChannelLayout,
+ kAudioUnitScope_Output,
+ 0,
+ layout,
+ &i_param_size ));
+
+ /* Lets fill out the ChannelLayout */
+ if( layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap)
+ {
+ msg_Dbg( p_aout, "bitmap defined channellayout" );
+ verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForBitmap,
+ sizeof( UInt32), &layout->mChannelBitmap,
+ &i_param_size,
+ layout ));
+ }
+ else if( layout->mChannelLayoutTag != kAudioChannelLayoutTag_UseChannelDescriptions )
+ {
+ msg_Dbg( p_aout, "layouttags defined channellayout" );
+ verify_noerr( AudioFormatGetProperty( kAudioFormatProperty_ChannelLayoutForTag,
+ sizeof( AudioChannelLayoutTag ), &layout->mChannelLayoutTag,
+ &i_param_size,
+ layout ));
+ }
+
+ msg_Dbg( p_aout, "Layout of AUHAL has %d channels" , (int)layout->mNumberChannelDescriptions );
+
+ p_aout->output.output.i_physical_channels = 0;
+ for( i = 0; i < layout->mNumberChannelDescriptions; i++ )
+ {
+ msg_Dbg( p_aout, "This is channel: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
+
+ switch( layout->mChannelDescriptions[i].mChannelLabel )
+ {
+ case kAudioChannelLabel_Left:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_LEFT;
+ continue;
+ case kAudioChannelLabel_Right:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_RIGHT;
+ continue;
+ case kAudioChannelLabel_Center:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_CENTER;
+ continue;
+ case kAudioChannelLabel_LFEScreen:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_LFE;
+ continue;
+ case kAudioChannelLabel_LeftSurround:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARLEFT;
+ continue;
+ case kAudioChannelLabel_RightSurround:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARRIGHT;
+ continue;
+ case kAudioChannelLabel_LeftCenter:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_MIDDLELEFT;
+ continue;
+ case kAudioChannelLabel_RightCenter:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_MIDDLERIGHT;
+ continue;
+ case kAudioChannelLabel_CenterSurround:
+ p_aout->output.output.i_physical_channels |= AOUT_CHAN_REARCENTER;
+ continue;
+ default:
+ msg_Warn( p_aout, "Unrecognized channel form provided by driver: %d", (int)layout->mChannelDescriptions[i].mChannelLabel );
+ p_aout->output.output.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
+ break;
+ }
+ }
+ free( layout );
+
+ msg_Dbg( p_aout, "defined %d physical channels for vlc core", aout_FormatNbChannels( &p_aout->output.output ) );
+ msg_Dbg( p_aout, "%s", aout_FormatPrintChannels( &p_aout->output.output ));
+
+ /* Set up the format to be used */
+ DeviceFormat.mSampleRate = p_aout->output.output.i_rate;
+ DeviceFormat.mFormatID = kAudioFormatLinearPCM;
+
+ /* We use float 32. It's the best supported format by both VLC and Coreaudio */
+ p_aout->output.output.i_format = VLC_FOURCC( 'f','l','3','2');
+ DeviceFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
+ DeviceFormat.mBitsPerChannel = 32;
+ DeviceFormat.mChannelsPerFrame = aout_FormatNbChannels( &p_aout->output.output );
+
+ /* Calculate framesizes and stuff */
+ aout_FormatPrepare( &p_aout->output.output );
+ DeviceFormat.mBytesPerFrame = p_aout->output.output.i_bytes_per_frame;
+ DeviceFormat.mFramesPerPacket = p_aout->output.output.i_frame_length;
+ DeviceFormat.mBytesPerPacket = p_aout->output.output.i_bytes_per_frame * p_aout->output.output.i_frame_length;
+
+ i_param_size = sizeof(AudioStreamBasicDescription);
+ /* Set desired format (Use CAStreamBasicDescription )*/
+ verify_noerr( AudioUnitSetProperty( p_sys->au_unit,
+ kAudioUnitProperty_StreamFormat,
+ kAudioUnitScope_Input,
+ 0,
+ &DeviceFormat,
+ i_param_size ));
+
+ msg_Dbg( p_aout, STREAM_FORMAT_MSG( "we set the AU format: " , DeviceFormat ) );
+
+ /* Retrieve actual format??? */
+ verify_noerr( AudioUnitGetProperty( p_sys->au_unit,
+ kAudioUnitProperty_StreamFormat,
+ kAudioUnitScope_Input,
+ 0,
+ &DeviceFormat,
+ &i_param_size ));
+
+ msg_Dbg( p_aout, STREAM_FORMAT_MSG( "the actual set AU format is " , DeviceFormat ) );
+
+ p_aout->output.i_nb_samples = 69 * p_aout->output.output.i_frame_length;
+ aout_VolumeSoftInit( p_aout );
+
+ /* Let's pray for the following operation to be atomic... */
+ p_sys->clock_diff = - (mtime_t)
+ AudioConvertHostTimeToNanos( AudioGetCurrentHostTime() ) / 1000;
+ p_sys->clock_diff += mdate();
+
+ /* 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 ) ) );
+
+ /* 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 )
+{
+}
+
+
+/*****************************************************************************
+ * DevicesList
+ *****************************************************************************/
+static int DevicesList( 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 );
+
+ 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.
+ *****************************************************************************/
+static OSStatus RenderCallbackAnalog( vlc_object_t *_p_aout,
+ AudioUnitRenderActionFlags *ioActionFlags,
+ const AudioTimeStamp *inTimeStamp,
+ unsigned int inBusNummer,
+ unsigned int inNumberFrames,
+ AudioBufferList *ioData )
+{
+ aout_buffer_t * p_buffer;
+ AudioTimeStamp host_time;
+ mtime_t current_date;
+
+ aout_instance_t * p_aout = (aout_instance_t *)_p_aout;
+ struct aout_sys_t * p_sys = p_aout->output.p_sys;
+msg_Dbg( p_aout, "start audio packet");
+msg_Dbg( p_aout, "inbusnummer: %d",inBusNummer );
+msg_Dbg( p_aout, "inNumberFrames: %d", inNumberFrames);
+
+ 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 = (mtime_t) p_sys->clock_diff + mdate() +
+ (mtime_t) ( 1000000 * 1 );
+
+#define B_SPDI (p_aout->output.output.i_format == VLC_FOURCC('s','p','d','i'))
+ p_buffer = aout_OutputNextBuffer( p_aout, current_date, VLC_FALSE );
+#undef B_SPDI
+
+msg_Dbg( p_aout, "start audio packet BADABOEM");
+
+ if( p_buffer != NULL )
+ {
+ if( ioData != NULL && ioData->mNumberBuffers > 0 )
+ {
+ if( p_buffer->i_nb_bytes*8 != ioData->mBuffers[0].mDataByteSize )
+ {
+ msg_Dbg( p_aout, "byte sizes don't match %d:%d", p_buffer->i_nb_bytes*8, ioData->mBuffers[0].mDataByteSize);
+ }
+ else
+ {
+ unsigned int i;
+ /* move data into output data buffer */
+ msg_Dbg( p_aout, "#buffers: %d", (int)ioData->mNumberBuffers );
+ for( i = 0; i < ioData->mNumberBuffers; i++ )
+ {
+ p_aout->p_vlc->pf_memcpy( ioData->mBuffers[i].mData,
+ p_buffer->p_buffer, ioData->mBuffers[i].mDataByteSize );
+ }
+ msg_Dbg( p_aout, "yeah first:" );
+ aout_BufferFree( p_buffer );
+ msg_Dbg( p_aout, "yeah" );
+ }
+ }
+ else msg_Dbg( p_aout, "no iodata or buffers");
+ }
+ else
+ {
+ msg_Dbg( p_aout, "aout_OutputNextBuffer failed" );
+ if( p_aout->output.output.i_format == VLC_FOURCC('f','l','3','2') )
+ {
+ UInt32 i;
+ float * p = (float *)ioData->mBuffers[0].mData;
+
+ for( i = 0; i < ioData->mBuffers[0].mDataByteSize; i++ )
+ {
+ *p++ = 0.0;
+ }
+ }
+ else
+ {
+ p_aout->p_vlc->pf_memset( ioData->mBuffers[0].mData, 0, ioData->mBuffers[0].mDataByteSize );
+ }
+ }
+msg_Dbg( p_aout, "eof audio packet");
+ 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;
+}
+
+
+/*****************************************************************************
+ * 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 );
+}
projects / vlc / commitdiff