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Viewing changes to external/maccore/src/AudioUnit/AudioUnitUtils.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/maccore/src/AudioUnit/AudioUnitUtils.cs
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using System.Text;
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using System.Runtime.InteropServices;
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using MonoMac.AudioToolbox;
 
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using MonoMac.Foundation;
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namespace MonoMac.AudioUnit
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{
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    {
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        public const int SampleFractionBits = 24;
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        [Advice ("Use AudioStreamBasicDescription::CreateLinearPCM instead")]
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        public static AudioStreamBasicDescription AUCanonicalASBD(double sampleRate, int channel)
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        {
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            // setting AudioStreamBasicDescription
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            return audioFormat;
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        }
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        [Advice ("Use AudioSession::OverrideCategoryDefaultToSpeaker instead")]
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        public static void SetOverrideCategoryDefaultToSpeaker(bool isSpeaker)
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        {
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                int val = isSpeaker ? 1 : 0;
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                if (err != 0)
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                        throw new ArgumentException();            
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        }
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        /*
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        public static void SetOverrideAudioRoute(OverrideAudioRouteType route)
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        {
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            int err = AudioSessionSetProperty(
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                AudioSessionProperty.OverrideAudioRoute,
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                (UInt32)sizeof(UInt32),
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                ref route);
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            if (err != 0)
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                throw new ArgumentException();
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        }        
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        */
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        /*
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Int32 doChangeDefaultRoute = 1;
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         * AudioSessionSetProperty 
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         * (kAudioSessionProperty_OverrideCategoryDefaultToSpeaker,
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         * sizeof (doChangeDefaultRoute),
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         * &doChangeDefaultRou         */
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            #region Interop
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            enum OverrideAudioRouteType {
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                    None = 0,
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                    Speaker = 0x73706d72 // 'spkr'
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            }
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            [DllImport(MonoMac.Constants.AudioToolboxLibrary, EntryPoint = "AudioSessionSetProperty")]
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            static extern int AudioSessionSetProperty(
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                    AudioSessionProperty inID,
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                    UInt32 inDataSize,
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                    ref OverrideAudioRouteType inData);
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            [DllImport(MonoMac.Constants.AudioToolboxLibrary, EntryPoint = "AudioSessionSetProperty")]
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            static extern int AudioSessionSetProperty(
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                    UInt32 inID,
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                    UInt32 inDataSize,
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                    ref int inData);
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            #endregion
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    }
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}