863 lines
33 KiB
C++
Executable file
863 lines
33 KiB
C++
Executable file
/******************************************************************************\
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* Copyright (c) 2004-2018
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*
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* Author(s):
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* Volker Fischer
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*
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******************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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\******************************************************************************/
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#include "sound.h"
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/* Implementation *************************************************************/
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CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg ) :
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CSoundBase ( "CoreAudio", true, fpNewProcessCallback, arg )
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{
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// Apple Mailing Lists: Subject: GUI Apps should set kAudioHardwarePropertyRunLoop
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// in the HAL, From: Jeff Moore, Date: Fri, 6 Dec 2002
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// Most GUI applciations have several threads on which they receive
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// notifications already, so the having the HAL's thread around is wasteful.
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// Here is what you should do: On the thread you want the HAL to use for
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// notifications (for most apps, this will be the main thread), add the
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// following lines of code:
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// tell the HAL to use the current thread as it's run loop
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CFRunLoopRef theRunLoop = CFRunLoopGetCurrent();
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AudioObjectPropertyAddress property = { kAudioHardwarePropertyRunLoop,
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kAudioObjectPropertyScopeGlobal,
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kAudioObjectPropertyElementMaster };
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AudioObjectSetPropertyData ( kAudioObjectSystemObject,
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&property,
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0,
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NULL,
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sizeof ( CFRunLoopRef ),
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&theRunLoop );
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// Get available input/output devices --------------------------------------
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UInt32 iPropertySize = 0;
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AudioObjectPropertyAddress stPropertyAddress;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
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// first get property size of devices array and allocate memory
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stPropertyAddress.mSelector = kAudioHardwarePropertyDevices;
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AudioObjectGetPropertyDataSize ( kAudioObjectSystemObject,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize );
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CVector<AudioDeviceID> vAudioDevices ( iPropertySize );
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// now actually query all devices present in the system
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AudioObjectGetPropertyData ( kAudioObjectSystemObject,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&vAudioDevices[0] );
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// calculate device count based on size of returned data array
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const UInt32 iDeviceCount = iPropertySize / sizeof ( AudioDeviceID );
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// always add system default devices for input and output as first entry
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lNumDevs = 0;
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strDriverNames[lNumDevs] = "System Default In/Out Devices";
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iPropertySize = sizeof ( AudioDeviceID );
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stPropertyAddress.mSelector = kAudioHardwarePropertyDefaultInputDevice;
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if ( AudioObjectGetPropertyData ( kAudioObjectSystemObject,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&audioInputDevice[lNumDevs] ) )
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{
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throw CGenErr ( tr ( "CoreAudio input AudioHardwareGetProperty call failed. "
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"It seems that no sound card is available in the system." ) );
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}
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iPropertySize = sizeof ( AudioDeviceID );
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stPropertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
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if ( AudioObjectGetPropertyData ( kAudioObjectSystemObject,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&audioOutputDevice[lNumDevs] ) )
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{
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throw CGenErr ( tr ( "CoreAudio output AudioHardwareGetProperty call failed. "
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"It seems that no sound card is available in the system." ) );
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}
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lNumDevs++; // next device
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// add detected devices
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//
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// we add combined entries for input and output for each device so that we
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// do not need two combo boxes in the GUI for input and output (therefore
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// all possible combinations are required which can be a large number)
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for ( UInt32 i = 0; i < iDeviceCount; i++ )
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{
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for ( UInt32 j = 0; j < iDeviceCount; j++ )
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{
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// get device infos for both current devices
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QString strDeviceName_i;
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QString strDeviceName_j;
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bool bIsInput_i;
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bool bIsInput_j;
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bool bIsOutput_i;
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bool bIsOutput_j;
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GetAudioDeviceInfos ( vAudioDevices[i],
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strDeviceName_i,
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bIsInput_i,
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bIsOutput_i );
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GetAudioDeviceInfos ( vAudioDevices[j],
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strDeviceName_j,
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bIsInput_j,
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bIsOutput_j );
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// check if i device is input and j device is output and that we are
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// in range
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if ( bIsInput_i && bIsOutput_j && ( lNumDevs < MAX_NUMBER_SOUND_CARDS ) )
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{
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strDriverNames[lNumDevs] = "in: " +
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strDeviceName_i + "/out: " +
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strDeviceName_j;
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// store audio device IDs
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audioInputDevice[lNumDevs] = vAudioDevices[i];
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audioOutputDevice[lNumDevs] = vAudioDevices[j];
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lNumDevs++; // next device
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}
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}
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}
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// init device index as not initialized (invalid)
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lCurDev = INVALID_SNC_CARD_DEVICE;
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CurrentAudioInputDeviceID = 0;
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CurrentAudioOutputDeviceID = 0;
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iNumInChan = 0;
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iNumOutChan = 0;
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iSelInputLeftChannel = 0;
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iSelInputRightChannel = 0;
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iSelOutputLeftChannel = 0;
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iSelOutputRightChannel = 0;
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}
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void CSound::GetAudioDeviceInfos ( const AudioDeviceID DeviceID,
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QString& strDeviceName,
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bool& bIsInput,
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bool& bIsOutput )
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{
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UInt32 iPropertySize;
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AudioObjectPropertyAddress stPropertyAddress;
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// init return values
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bIsInput = false;
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bIsOutput = false;
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// check if device is input or output or both (is that possible?)
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stPropertyAddress.mSelector = kAudioDevicePropertyStreams;
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stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
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// input check
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iPropertySize = 0;
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stPropertyAddress.mScope = kAudioDevicePropertyScopeInput;
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AudioObjectGetPropertyDataSize ( DeviceID,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize );
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bIsInput = ( iPropertySize > 0 ); // check if any input streams are available
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// output check
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iPropertySize = 0;
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stPropertyAddress.mScope = kAudioDevicePropertyScopeOutput;
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AudioObjectGetPropertyDataSize ( DeviceID,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize );
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bIsOutput = ( iPropertySize > 0 ); // check if any output streams are available
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// get property name
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CFStringRef sPropertyStringValue = NULL;
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stPropertyAddress.mSelector = kAudioObjectPropertyName;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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iPropertySize = sizeof ( CFStringRef );
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AudioObjectGetPropertyData ( DeviceID,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&sPropertyStringValue );
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// convert string
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if ( !ConvertCFStringToQString ( sPropertyStringValue, strDeviceName ) )
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{
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// use a default name in case the conversion did not succeed
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strDeviceName = "UNKNOWN";
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}
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}
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QString CSound::LoadAndInitializeDriver ( int iDriverIdx )
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{
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// check device capabilities if it fullfills our requirements
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const QString strStat = CheckDeviceCapabilities ( iDriverIdx );
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// check if device is capable
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if ( strStat.isEmpty() )
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{
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// store ID of selected driver if initialization was successful
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lCurDev = iDriverIdx;
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CurrentAudioInputDeviceID = audioInputDevice[iDriverIdx];
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CurrentAudioOutputDeviceID = audioOutputDevice[iDriverIdx];
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// the device has changed, per definition we reset the channel
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// mapping to the defaults (first two available channels)
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iSelInputLeftChannel = 0;
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iSelInputRightChannel = min ( iNumInChan - 1, 1 );
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iSelOutputLeftChannel = 0;
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iSelOutputRightChannel = min ( iNumOutChan - 1, 1 );
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}
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return strStat;
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}
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QString CSound::CheckDeviceCapabilities ( const int iDriverIdx )
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{
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UInt32 iPropertySize;
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AudioStreamBasicDescription CurDevStreamFormat;
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Float64 inputSampleRate = 0;
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Float64 outputSampleRate = 0;
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const Float64 fSystemSampleRate = static_cast<Float64> ( SYSTEM_SAMPLE_RATE_HZ );
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AudioObjectPropertyAddress stPropertyAddress;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
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// check input device sample rate
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stPropertyAddress.mSelector = kAudioDevicePropertyNominalSampleRate;
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iPropertySize = sizeof ( Float64 );
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AudioObjectGetPropertyData ( audioInputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&inputSampleRate );
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if ( inputSampleRate != fSystemSampleRate )
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{
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// try to change the sample rate
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if ( AudioObjectSetPropertyData ( audioInputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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sizeof ( Float64 ),
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&fSystemSampleRate ) != noErr )
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{
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return QString ( tr ( "Current system audio input device sample "
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"rate of %1 Hz is not supported. Please open the Audio-MIDI-Setup in "
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"Applications->Utilities and try to set a sample rate of %2 Hz." ) ).arg (
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static_cast<int> ( inputSampleRate ) ).arg ( SYSTEM_SAMPLE_RATE_HZ );
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}
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}
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// check output device sample rate
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iPropertySize = sizeof ( Float64 );
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AudioObjectGetPropertyData ( audioOutputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&outputSampleRate );
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if ( outputSampleRate != fSystemSampleRate )
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{
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// try to change the sample rate
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if ( AudioObjectSetPropertyData ( audioOutputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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sizeof ( Float64 ),
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&fSystemSampleRate ) != noErr )
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{
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return QString ( tr ( "Current system audio output device sample "
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"rate of %1 Hz is not supported. Please open the Audio-MIDI-Setup in "
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"Applications->Utilities and try to set a sample rate of %2 Hz." ) ).arg (
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static_cast<int> ( outputSampleRate ) ).arg ( SYSTEM_SAMPLE_RATE_HZ );
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}
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}
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// get the stream ID of the input device (at least one stream must always exist)
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iPropertySize = 0;
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stPropertyAddress.mSelector = kAudioDevicePropertyStreams;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeInput;
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AudioObjectGetPropertyDataSize ( audioInputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize );
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CVector<AudioStreamID> vInputStreamIDList ( iPropertySize );
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AudioObjectGetPropertyData ( audioInputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&vInputStreamIDList[0] );
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const AudioStreamID inputStreamID = vInputStreamIDList[0];
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// get the stream ID of the output device (at least one stream must always exist)
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iPropertySize = 0;
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stPropertyAddress.mSelector = kAudioDevicePropertyStreams;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeOutput;
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AudioObjectGetPropertyDataSize ( audioOutputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize );
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CVector<AudioStreamID> vOutputStreamIDList ( iPropertySize );
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AudioObjectGetPropertyData ( audioOutputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&vOutputStreamIDList[0] );
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const AudioStreamID outputStreamID = vOutputStreamIDList[0];
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// According to the AudioHardware documentation: "If the format is a linear PCM
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// format, the data will always be presented as 32 bit, native endian floating
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// point. All conversions to and from the true physical format of the hardware
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// is handled by the devices driver.".
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// check the input
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iPropertySize = sizeof ( AudioStreamBasicDescription );
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stPropertyAddress.mSelector = kAudioStreamPropertyVirtualFormat;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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AudioObjectGetPropertyData ( inputStreamID,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&CurDevStreamFormat );
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if ( ( CurDevStreamFormat.mFormatID != kAudioFormatLinearPCM ) ||
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( CurDevStreamFormat.mFramesPerPacket != 1 ) ||
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( CurDevStreamFormat.mBitsPerChannel != 32 ) ||
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( !( CurDevStreamFormat.mFormatFlags & kAudioFormatFlagIsFloat ) ) ||
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( !( CurDevStreamFormat.mFormatFlags & kAudioFormatFlagIsPacked ) ) )
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{
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return tr ( "The audio input stream format for this audio device is "
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"not compatible with this software." );
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}
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// store the input number of channels for this stream
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iNumInChan = CurDevStreamFormat.mChannelsPerFrame;
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// check the output
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AudioObjectGetPropertyData ( outputStreamID,
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&CurDevStreamFormat );
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if ( ( CurDevStreamFormat.mFormatID != kAudioFormatLinearPCM ) ||
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( CurDevStreamFormat.mFramesPerPacket != 1 ) ||
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( CurDevStreamFormat.mBitsPerChannel != 32 ) ||
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( !( CurDevStreamFormat.mFormatFlags & kAudioFormatFlagIsFloat ) ) ||
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( !( CurDevStreamFormat.mFormatFlags & kAudioFormatFlagIsPacked ) ) )
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{
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return tr ( "The audio output stream format for this audio device is "
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"not compatible with this software." );
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}
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// store the output number of channels for this stream
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iNumOutChan = CurDevStreamFormat.mChannelsPerFrame;
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// clip the number of input/output channels to our allowed maximum
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if ( iNumInChan > MAX_NUM_IN_OUT_CHANNELS )
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{
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iNumInChan = MAX_NUM_IN_OUT_CHANNELS;
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}
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if ( iNumOutChan > MAX_NUM_IN_OUT_CHANNELS )
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{
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iNumOutChan = MAX_NUM_IN_OUT_CHANNELS;
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}
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// get the channel names of the input device
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for ( int iCurInCH = 0; iCurInCH < iNumInChan; iCurInCH++ )
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{
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CFStringRef sPropertyStringValue = NULL;
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stPropertyAddress.mSelector = kAudioObjectPropertyElementName;
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stPropertyAddress.mElement = iCurInCH + 1;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeInput;
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iPropertySize = sizeof ( CFStringRef );
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AudioObjectGetPropertyData ( audioInputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&sPropertyStringValue );
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// convert string
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const bool bConvOK = ConvertCFStringToQString ( sPropertyStringValue,
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sChannelNamesInput[iCurInCH] );
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// add the "[n]:" at the beginning as is in the Audio-Midi-Setup
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if ( !bConvOK || ( iPropertySize == 0 ) )
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{
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// use a defalut name in case there was an error or the name is empty
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sChannelNamesInput[iCurInCH] =
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QString ( "%1: Channel %1" ).arg ( iCurInCH + 1 );
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}
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else
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{
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sChannelNamesInput[iCurInCH].prepend ( QString ( "%1: " ).arg ( iCurInCH + 1 ) );
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}
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}
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// get the channel names of the output device
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for ( int iCurOutCH = 0; iCurOutCH < iNumOutChan; iCurOutCH++ )
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{
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CFStringRef sPropertyStringValue = NULL;
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stPropertyAddress.mSelector = kAudioObjectPropertyElementName;
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stPropertyAddress.mElement = iCurOutCH + 1;
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stPropertyAddress.mScope = kAudioObjectPropertyScopeOutput;
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iPropertySize = sizeof ( CFStringRef );
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AudioObjectGetPropertyData ( audioOutputDevice[iDriverIdx],
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&stPropertyAddress,
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0,
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NULL,
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&iPropertySize,
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&sPropertyStringValue );
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// convert string
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const bool bConvOK = ConvertCFStringToQString ( sPropertyStringValue,
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sChannelNamesOutput[iCurOutCH] );
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// add the "[n]:" at the beginning as is in the Audio-Midi-Setup
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if ( !bConvOK || ( iPropertySize == 0 ) )
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{
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// use a defalut name in case there was an error or the name is empty
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sChannelNamesOutput[iCurOutCH] =
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QString ( "%1: Channel %1" ).arg ( iCurOutCH + 1 );
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}
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else
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{
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sChannelNamesOutput[iCurOutCH].prepend ( QString ( "%1: " ).arg ( iCurOutCH + 1 ) );
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}
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}
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// everything is ok, return empty string for "no error" case
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return "";
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}
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void CSound::SetLeftInputChannel ( const int iNewChan )
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{
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// apply parameter after input parameter check
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if ( ( iNewChan >= 0 ) && ( iNewChan < iNumInChan ) )
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{
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iSelInputLeftChannel = iNewChan;
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}
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}
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void CSound::SetRightInputChannel ( const int iNewChan )
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{
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// apply parameter after input parameter check
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if ( ( iNewChan >= 0 ) && ( iNewChan < iNumInChan ) )
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{
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iSelInputRightChannel = iNewChan;
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}
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}
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void CSound::SetLeftOutputChannel ( const int iNewChan )
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{
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// apply parameter after input parameter check
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if ( ( iNewChan >= 0 ) && ( iNewChan < iNumOutChan ) )
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{
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iSelOutputLeftChannel = iNewChan;
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}
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}
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void CSound::SetRightOutputChannel ( const int iNewChan )
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{
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// apply parameter after input parameter check
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if ( ( iNewChan >= 0 ) && ( iNewChan < iNumOutChan ) )
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{
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iSelOutputRightChannel = iNewChan;
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}
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}
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void CSound::Start()
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{
|
|
AudioObjectPropertyAddress stPropertyAddress;
|
|
|
|
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
|
|
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
|
|
|
|
// setup callback for xruns (only for input is enough)
|
|
stPropertyAddress.mSelector = kAudioDeviceProcessorOverload;
|
|
|
|
AudioObjectAddPropertyListener ( audioInputDevice[lCurDev],
|
|
&stPropertyAddress,
|
|
deviceNotification,
|
|
this );
|
|
|
|
// setup callbacks for device property changes
|
|
stPropertyAddress.mSelector = kAudioDevicePropertyDeviceHasChanged;
|
|
|
|
AudioObjectAddPropertyListener ( audioInputDevice[lCurDev],
|
|
&stPropertyAddress,
|
|
deviceNotification,
|
|
this );
|
|
|
|
AudioObjectAddPropertyListener ( audioOutputDevice[lCurDev],
|
|
&stPropertyAddress,
|
|
deviceNotification,
|
|
this );
|
|
|
|
// register the callback function for input and output
|
|
AudioDeviceCreateIOProcID ( audioInputDevice[lCurDev],
|
|
callbackIO,
|
|
this,
|
|
&audioInputProcID );
|
|
|
|
AudioDeviceCreateIOProcID ( audioOutputDevice[lCurDev],
|
|
callbackIO,
|
|
this,
|
|
&audioOutputProcID );
|
|
|
|
// start the audio stream
|
|
AudioDeviceStart ( audioInputDevice[lCurDev], audioInputProcID );
|
|
AudioDeviceStart ( audioOutputDevice[lCurDev], audioOutputProcID );
|
|
|
|
// call base class
|
|
CSoundBase::Start();
|
|
}
|
|
|
|
void CSound::Stop()
|
|
{
|
|
// stop the audio stream
|
|
AudioDeviceStop ( audioInputDevice[lCurDev], audioInputProcID );
|
|
AudioDeviceStop ( audioOutputDevice[lCurDev], audioOutputProcID );
|
|
|
|
// unregister the callback function for input and output
|
|
AudioDeviceDestroyIOProcID ( audioInputDevice[lCurDev], audioInputProcID );
|
|
AudioDeviceDestroyIOProcID ( audioOutputDevice[lCurDev], audioOutputProcID );
|
|
|
|
AudioObjectPropertyAddress stPropertyAddress;
|
|
|
|
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
|
|
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
|
|
|
|
// unregister callback functions for device property changes
|
|
stPropertyAddress.mSelector = kAudioDevicePropertyDeviceHasChanged;
|
|
|
|
AudioObjectRemovePropertyListener( audioOutputDevice[lCurDev],
|
|
&stPropertyAddress,
|
|
deviceNotification,
|
|
this );
|
|
|
|
AudioObjectRemovePropertyListener( audioInputDevice[lCurDev],
|
|
&stPropertyAddress,
|
|
deviceNotification,
|
|
this );
|
|
|
|
// unregister the callback function for xruns
|
|
stPropertyAddress.mSelector = kAudioDeviceProcessorOverload;
|
|
|
|
AudioObjectRemovePropertyListener( audioInputDevice[lCurDev],
|
|
&stPropertyAddress,
|
|
deviceNotification,
|
|
this );
|
|
|
|
// call base class
|
|
CSoundBase::Stop();
|
|
}
|
|
|
|
int CSound::Init ( const int iNewPrefMonoBufferSize )
|
|
{
|
|
UInt32 iActualMonoBufferSize;
|
|
|
|
// Error message string: in case buffer sizes on input and output cannot be
|
|
// set to the same value
|
|
const QString strErrBufSize = tr ( "The buffer sizes of the current "
|
|
"input and output audio device cannot be set to a common value. Please "
|
|
"choose other input/output audio devices in your system settings." );
|
|
|
|
// try to set input buffer size
|
|
iActualMonoBufferSize =
|
|
SetBufferSize ( audioInputDevice[lCurDev], true, iNewPrefMonoBufferSize );
|
|
|
|
if ( iActualMonoBufferSize != static_cast<UInt32> ( iNewPrefMonoBufferSize ) )
|
|
{
|
|
// try to set the input buffer size to the output so that we
|
|
// have a matching pair
|
|
if ( SetBufferSize ( audioOutputDevice[lCurDev], false, iActualMonoBufferSize ) !=
|
|
iActualMonoBufferSize )
|
|
{
|
|
throw CGenErr ( strErrBufSize );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// try to set output buffer size
|
|
if ( SetBufferSize ( audioOutputDevice[lCurDev], false, iNewPrefMonoBufferSize ) !=
|
|
static_cast<UInt32> ( iNewPrefMonoBufferSize ) )
|
|
{
|
|
throw CGenErr ( strErrBufSize );
|
|
}
|
|
}
|
|
|
|
// store buffer size
|
|
iCoreAudioBufferSizeMono = iActualMonoBufferSize;
|
|
|
|
// init base class
|
|
CSoundBase::Init ( iCoreAudioBufferSizeMono );
|
|
|
|
// set internal buffer size value and calculate stereo buffer size
|
|
iCoreAudioBufferSizeStereo = 2 * iCoreAudioBufferSizeMono;
|
|
|
|
// create memory for intermediate audio buffer
|
|
vecsTmpAudioSndCrdStereo.Init ( iCoreAudioBufferSizeStereo );
|
|
|
|
return iCoreAudioBufferSizeMono;
|
|
}
|
|
|
|
UInt32 CSound::SetBufferSize ( AudioDeviceID& audioDeviceID,
|
|
const bool bIsInput,
|
|
UInt32 iPrefBufferSize )
|
|
{
|
|
AudioObjectPropertyAddress stPropertyAddress;
|
|
stPropertyAddress.mSelector = kAudioDevicePropertyBufferFrameSize;
|
|
|
|
if ( bIsInput )
|
|
{
|
|
stPropertyAddress.mScope = kAudioDevicePropertyScopeInput;
|
|
}
|
|
else
|
|
{
|
|
stPropertyAddress.mScope = kAudioDevicePropertyScopeOutput;
|
|
}
|
|
|
|
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
|
|
|
|
// first set the value
|
|
UInt32 iSizeBufValue = sizeof ( UInt32 );
|
|
|
|
AudioObjectSetPropertyData ( audioDeviceID,
|
|
&stPropertyAddress,
|
|
0,
|
|
NULL,
|
|
iSizeBufValue,
|
|
&iPrefBufferSize );
|
|
|
|
// read back which value is actually used
|
|
UInt32 iActualMonoBufferSize = 0;
|
|
|
|
AudioObjectGetPropertyData ( audioDeviceID,
|
|
&stPropertyAddress,
|
|
0,
|
|
NULL,
|
|
&iSizeBufValue,
|
|
&iActualMonoBufferSize );
|
|
|
|
return iActualMonoBufferSize;
|
|
}
|
|
|
|
OSStatus CSound::deviceNotification ( AudioDeviceID,
|
|
UInt32,
|
|
const AudioObjectPropertyAddress* inAddresses,
|
|
void* inRefCon )
|
|
{
|
|
CSound* pSound = static_cast<CSound*> ( inRefCon );
|
|
|
|
if ( inAddresses->mSelector == kAudioDevicePropertyDeviceHasChanged )
|
|
{
|
|
// if any property of the device has changed, do a full reload
|
|
pSound->EmitReinitRequestSignal ( RS_RELOAD_RESTART_AND_INIT );
|
|
}
|
|
|
|
/*
|
|
if ( inAddresses->mSelector == kAudioDeviceProcessorOverload )
|
|
{
|
|
// xrun handling (it is important to act on xruns under CoreAudio
|
|
// since it seems that the xrun situation stays stable for a
|
|
// while and would give you a long time bad audio)
|
|
pSound->EmitReinitRequestSignal ( RS_ONLY_RESTART );
|
|
}
|
|
*/
|
|
|
|
return noErr;
|
|
}
|
|
|
|
OSStatus CSound::callbackIO ( AudioDeviceID inDevice,
|
|
const AudioTimeStamp*,
|
|
const AudioBufferList* inInputData,
|
|
const AudioTimeStamp*,
|
|
AudioBufferList* outOutputData,
|
|
const AudioTimeStamp*,
|
|
void* inRefCon )
|
|
{
|
|
CSound* pSound = static_cast<CSound*> ( inRefCon );
|
|
|
|
// both, the input and output device use the same callback function
|
|
QMutexLocker locker ( &pSound->Mutex );
|
|
|
|
const int iCoreAudioBufferSizeMono = pSound->iCoreAudioBufferSizeMono;
|
|
const int iNumInChan = pSound->iNumInChan;
|
|
const int iNumOutChan = pSound->iNumOutChan;
|
|
const int iSelInputLeftChannel = pSound->iSelInputLeftChannel;
|
|
const int iSelInputRightChannel = pSound->iSelInputRightChannel;
|
|
const int iSelOutputLeftChannel = pSound->iSelOutputLeftChannel;
|
|
const int iSelOutputRightChannel = pSound->iSelOutputRightChannel;
|
|
|
|
if ( inDevice == pSound->CurrentAudioInputDeviceID )
|
|
{
|
|
// check size (float32 has four bytes)
|
|
if ( inInputData->mBuffers[0].mDataByteSize ==
|
|
static_cast<UInt32> ( iCoreAudioBufferSizeMono * iNumInChan * 4 ) )
|
|
{
|
|
// get a pointer to the input data of the correct type
|
|
Float32* pInData = static_cast<Float32*> ( inInputData->mBuffers[0].mData );
|
|
|
|
// copy input data
|
|
for ( int i = 0; i < iCoreAudioBufferSizeMono; i++ )
|
|
{
|
|
// left
|
|
pSound->vecsTmpAudioSndCrdStereo[2 * i] =
|
|
(short) ( pInData[iNumInChan * i + iSelInputLeftChannel] * _MAXSHORT );
|
|
|
|
// right
|
|
pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] =
|
|
(short) ( pInData[iNumInChan * i + iSelInputRightChannel] * _MAXSHORT );
|
|
|
|
/*
|
|
// TEST mix channel with micro to the stereo output
|
|
if ( iNumInChan == 4 )
|
|
{
|
|
// add mic input on input channel 4 to both stereo channels
|
|
pSound->vecsTmpAudioSndCrdStereo[2 * i] =
|
|
Double2Short ( (double) ( pInData[iNumInChan * i + 3] * _MAXSHORT ) +
|
|
(double) pSound->vecsTmpAudioSndCrdStereo[2 * i] );
|
|
pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] =
|
|
Double2Short ( (double) ( pInData[iNumInChan * i + 3] * _MAXSHORT ) +
|
|
(double) pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] );
|
|
}
|
|
*/
|
|
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// incompatible sizes, clear work buffer
|
|
pSound->vecsTmpAudioSndCrdStereo.Reset ( 0 );
|
|
}
|
|
|
|
// call processing callback function
|
|
pSound->ProcessCallback ( pSound->vecsTmpAudioSndCrdStereo );
|
|
}
|
|
|
|
if ( inDevice == pSound->CurrentAudioOutputDeviceID )
|
|
{
|
|
// check size (float32 has four bytes)
|
|
if ( outOutputData->mBuffers[0].mDataByteSize ==
|
|
static_cast<UInt32> ( iCoreAudioBufferSizeMono * iNumOutChan * 4 ) )
|
|
{
|
|
// get a pointer to the input data of the correct type
|
|
Float32* pOutData = static_cast<Float32*> ( outOutputData->mBuffers[0].mData );
|
|
|
|
// copy output data
|
|
for ( int i = 0; i < iCoreAudioBufferSizeMono; i++ )
|
|
{
|
|
// left
|
|
pOutData[iNumOutChan * i + iSelOutputLeftChannel] =
|
|
(Float32) pSound->vecsTmpAudioSndCrdStereo[2 * i] / _MAXSHORT;
|
|
|
|
// right
|
|
pOutData[iNumOutChan * i + iSelOutputRightChannel] =
|
|
(Float32) pSound->vecsTmpAudioSndCrdStereo[2 * i + 1] / _MAXSHORT;
|
|
}
|
|
}
|
|
}
|
|
|
|
return kAudioHardwareNoError;
|
|
}
|
|
|
|
bool CSound::ConvertCFStringToQString ( const CFStringRef stringRef,
|
|
QString& sOut )
|
|
{
|
|
// check if the string reference is a valid pointer
|
|
if ( stringRef != NULL )
|
|
{
|
|
// first check if the string is not empty
|
|
if ( CFStringGetLength ( stringRef ) > 0 )
|
|
{
|
|
// convert CFString in c-string (quick hack!) and then in QString
|
|
char* sC_strPropValue =
|
|
(char*) malloc ( CFStringGetLength ( stringRef ) * 3 + 1 );
|
|
|
|
if ( CFStringGetCString ( stringRef,
|
|
sC_strPropValue,
|
|
CFStringGetLength ( stringRef ) * 3 + 1,
|
|
kCFStringEncodingUTF8 ) )
|
|
{
|
|
sOut = sC_strPropValue;
|
|
free ( sC_strPropValue );
|
|
|
|
return true; // OK
|
|
}
|
|
}
|
|
|
|
// release the string reference because it is not needed anymore
|
|
CFRelease ( stringRef );
|
|
}
|
|
|
|
return false; // not OK
|
|
}
|