Class AudioSource

An audio source.

Inheritance
System.Object
Serializable
Dynamic
MediaSourceBase
MediaSource<IAudioOutput, IAudioInput, IAudioInputCollection, AudioSource, AudioFrame, AudioBuffer, AudioBufferCollection, AudioFormat>
AudioSource
FakeAudioSource
AudioSource
Source
NullAudioSource
AudioGraphSource
MediaCaptureAudioSource
Inherited Members
Namespace: FM.LiveSwitch
Assembly: FM.LiveSwitch.dll
Syntax
public abstract class AudioSource : MediaSource<IAudioOutput, IAudioInput, IAudioInputCollection, AudioSource, AudioFrame, AudioBuffer, AudioBufferCollection, AudioFormat>, IAudioOutput, IMediaOutput<IAudioOutput, IAudioInput, AudioFrame, AudioBuffer, AudioBufferCollection, AudioFormat>, IOutput<IAudioOutput, IAudioInput, AudioFrame, AudioBuffer, AudioBufferCollection, AudioFormat>, IAudioElement, IMediaElement, IElement

Constructors

AudioSource(AudioFormat)

Initializes a new instance of the AudioSource class.

Declaration
public AudioSource(AudioFormat outputFormat)
Parameters
Type Name Description
AudioFormat outputFormat

The output format.

AudioSource(AudioFormat, Int32)

Initializes a new instance of the AudioSource class.

Declaration
public AudioSource(AudioFormat outputFormat, int frameDuration)
Parameters
Type Name Description
AudioFormat outputFormat

The output format.
System.Int32 frameDuration

The frame duration in milliseconds.

Properties

Config

Gets the output configuration.

Declaration
public AudioConfig Config { get; }
Property Value
Type Description
AudioConfig

DisableTimestampReset

Gets or sets whether the timestamp should be reset using the wall clock after TimestampResetInterval milliseconds elapse between frames.

Declaration
public bool DisableTimestampReset { get; set; }
Property Value
Type Description
System.Boolean

ForceTimestampReset

Gets or sets whether the timestamp should be reset before the next frame is processed.

Declaration
public bool ForceTimestampReset { get; set; }
Property Value
Type Description
System.Boolean

FrameDuration

Gets the frame duration in milliseconds. Defaults to 20.

Declaration
public int FrameDuration { get; }
Property Value
Type Description
System.Int32

TimestampResetInterval

Gets or sets the amount of time in milliseconds between audio frames that will trigger a reset of the timestamp to the wall clock.

Declaration
public int TimestampResetInterval { get; set; }
Property Value
Type Description
System.Int32

Volume

Gets or sets a value indicating the volume (output resistance) of this source. Valid value range is 0.0 to 1.0, inclusive.

Declaration
public double Volume { get; set; }
Property Value
Type Description
System.Double

Methods

CalculateDuration(Int32)

Calculates the duration of an audio chunk given its data length (the number of bytes) and assuming that the clock rate and channel count match the output format.

Declaration
public int CalculateDuration(int dataLength)
Parameters
Type Name Description
System.Int32 dataLength

The length of the audio chunk.
Returns
Type Description
System.Int32

CalculateDuration(Int32, AudioConfig)

Calculates the duration of an audio chunk given its data length (the number of bytes), clock rate, and channel count.

Declaration
public static int CalculateDuration(int dataLength, AudioConfig config)
Parameters
Type Name Description
System.Int32 dataLength

The length of the audio chunk.
AudioConfig config

The configuration.
Returns
Type Description
System.Int32

CalculateDuration(Int32, Int32, Int32)

Calculates the duration of an audio chunk given its data length (the number of bytes), clock rate, and channel count.

Declaration
public static int CalculateDuration(int dataLength, int clockRate, int channelCount)
Parameters
Type Name Description
System.Int32 dataLength

The length of the audio chunk.
System.Int32 clockRate

The clock rate.
System.Int32 channelCount

The channel count.
Returns
Type Description
System.Int32

CalculateDurationFloat(Int32)

Calculates the duration of an audio chunk given its data length (the number of bytes) and assuming that the clock rate and channel count match the output format.

Declaration
public int CalculateDurationFloat(int dataLength)
Parameters
Type Name Description
System.Int32 dataLength

The length of the audio chunk.
Returns
Type Description
System.Int32

CalculateDurationFloat(Int32, Int32, Int32)

Calculates the duration of an audio chunk given its data length (the number of bytes), clock rate, and channel count.

Declaration
public static int CalculateDurationFloat(int dataLength, int clockRate, int channelCount)
Parameters
Type Name Description
System.Int32 dataLength

The length of the audio chunk.
System.Int32 clockRate

The clock rate.
System.Int32 channelCount

The channel count.
Returns
Type Description
System.Int32

CreateInputCollection(IAudioOutput)

Creates an input collection.

Declaration
protected override IAudioInputCollection CreateInputCollection(IAudioOutput output)
Parameters
Type Name Description
IAudioOutput output

The output.
Returns
Type Description
IAudioInputCollection
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IAudioOutput, FM.LiveSwitch.IAudioInput, FM.LiveSwitch.IAudioInputCollection, FM.LiveSwitch.AudioSource, FM.LiveSwitch.AudioFrame, FM.LiveSwitch.AudioBuffer, FM.LiveSwitch.AudioBufferCollection, FM.LiveSwitch.AudioFormat>.CreateInputCollection(FM.LiveSwitch.IAudioOutput)

DoDestroy()

Declaration
protected override void DoDestroy()
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IAudioOutput, FM.LiveSwitch.IAudioInput, FM.LiveSwitch.IAudioInputCollection, FM.LiveSwitch.AudioSource, FM.LiveSwitch.AudioFrame, FM.LiveSwitch.AudioBuffer, FM.LiveSwitch.AudioBufferCollection, FM.LiveSwitch.AudioFormat>.DoDestroy()

RaiseFrame(AudioFrame)

Raises a frame.

Declaration
protected override void RaiseFrame(AudioFrame frame)
Parameters
Type Name Description
AudioFrame frame

The frame.
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IAudioOutput, FM.LiveSwitch.IAudioInput, FM.LiveSwitch.IAudioInputCollection, FM.LiveSwitch.AudioSource, FM.LiveSwitch.AudioFrame, FM.LiveSwitch.AudioBuffer, FM.LiveSwitch.AudioBufferCollection, FM.LiveSwitch.AudioFormat>.RaiseFrame(FM.LiveSwitch.AudioFrame)

TrySetSystemTimestamp(AudioFrame)

Tries to set the system timestamp on an audio frame. This will succeed if the system timestamp is already set or if the system timestamp can be calculated off the timestamp.

Declaration
protected bool TrySetSystemTimestamp(AudioFrame frame)
Parameters
Type Name Description
AudioFrame frame

The frame.
Returns
Type Description
System.Boolean

TrySetTimestamp(AudioFrame)

Tries to set the timestamp on an audio frame. This will succeed if the timestamp is already set or if the timestamp can be calculated off the system timestamp.

Declaration
protected bool TrySetTimestamp(AudioFrame frame)
Parameters
Type Name Description
AudioFrame frame

The frame.
Returns
Type Description
System.Boolean

Implements