MediaTranscoder class (Windows)

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Transcodes audio and video files.

Syntax


var mediaTranscoder = new Windows.Media.Transcoding.MediaTranscoder();

Attributes

ActivatableAttribute(NTDDI_WIN8)
DualApiPartitionAttribute()
MarshalingBehaviorAttribute(Agile)
ThreadingAttribute(Both)
VersionAttribute(NTDDI_WIN8)

Members

The MediaTranscoder class has these types of members:

Constructors
Methods
Properties

Constructors

The MediaTranscoder class has these constructors.

Constructor	Description
MediaTranscoder	Creates a new instance of the MediaTranscoder class.

Methods

The MediaTranscoder class has these methods. With C#, Visual Basic, and C++, it also inherits methods from the Object class.

Method	Description
AddAudioEffect(String)	Adds the specified audio effect.
AddAudioEffect(String, Boolean, IPropertySet)	Adds the specified audio effect with configuration properties, and indicates whether the effect is required.
AddVideoEffect(String)	Adds the specified video effect.
AddVideoEffect(String, Boolean, IPropertySet)	Adds the specified video effect with configuration properties and indicates whether the effect is required.
ClearEffects	Removes all audio and video effects from the transcode session.
PrepareFileTranscodeAsync	Performs an asynchronous transcode deferral operation on the source file and sends the converted media data to the destination file.
PrepareStreamTranscodeAsync	Performs an asynchronous transcode deferral operation on the source stream and sends the converted media data to the destination stream.

Properties

The MediaTranscoder class has these properties.

Property	Access type	Description
AlwaysReencode	Read/write	Specifies whether the media transcoder always re-encodes the source.
HardwareAccelerationEnabled	Read/write	Specifies whether hardware acceleration is enabled.
TrimStartTime	Read/write	Gets or sets the time interval to trim from the start of the output.
TrimStopTime	Read/write	Gets or sets the time interval to trim from the end of the output.

Examples

The following code sample shows how to create a new MediaTranscoder object.

JavaScript


...
var profile = Windows.Media.MediaProperties.MediaEncodingProfile.createMp4(
    Windows.Media.MediaProperties.VideoEncodingQuality.hd720p);

var transcoder = new Windows.Media.Transcoding.MediaTranscoder();
transcoder.trimStartTime = 1000;
transcoder.trimStopTime = 9000;
...

Requirements

Minimum supported client	Windows 8 [Windows Store apps, desktop apps]
Minimum supported server	Windows Server 2012 [Windows Store apps, desktop apps]
Namespace	Windows.Media.Transcoding Windows::Media::Transcoding [C++]
Metadata	Windows.winmd

MediaTranscoder class