MpegAudioPackage

MpegAudioPackage class

Represents MPEG audio metadata.

public sealed class MpegAudioPackage : CustomPackage

Constructors

Name Description
MpegAudioPackage() Initializes a new instance of the MpegAudioPackage class.

Properties

Name Description
Bitrate { get; } Gets the bitrate.
ChannelMode { get; } Gets the channel mode.
Copyright { get; } Gets the copyright bit.
Count { get; } Gets the number of metadata properties.
Emphasis { get; } Gets the emphasis.
Frequency { get; } Gets the frequency.
HeaderPosition { get; } Gets the header offset.
IsOriginal { get; } Gets the original bit.
IsProtected { get; } Gets true if protected.
Item { get; } Gets the MetadataProperty with the specified name.
Keys { get; } Gets a collection of the metadata property names.
Layer { get; } Gets the layer description. For an MP3 audio it is ‘3’.
MetadataType { get; } Gets the metadata type.
ModeExtensionBits { get; } Gets the mode extension bits.
MpegAudioVersion { get; } Gets the MPEG audio version. Can be MPEG-1, MPEG-2 etc.
PaddingBit { get; } Gets the padding bit.
PrivateBit { get; } Gets a value indicating whether [private bit].
PropertyDescriptors { get; } Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.

Methods

Name Description
AddProperties(Func<MetadataProperty, bool>, PropertyValue) Adds known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.
Contains(string) Determines whether the package contains a metadata property with the specified name.
virtual FindProperties(Func<MetadataProperty, bool>) Finds the metadata properties satisfying the specified predicate. The search is recursive so it affects all nested packages as well.
GetEnumerator() Returns an enumerator that iterates through the collection.
virtual RemoveProperties(Func<MetadataProperty, bool>) Removes metadata properties satisfying the specified predicate.
virtual Sanitize() Removes writable metadata properties from the package. The operation is recursive so it affects all nested packages as well.
SetProperties(Func<MetadataProperty, bool>, PropertyValue) Sets known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well. This method is a combination of AddProperties and UpdateProperties. If an existing property satisfies the predicate its value is updated. If there is a known property missing in the package that satisfies the predicate it is added to the package.
UpdateProperties(Func<MetadataProperty, bool>, PropertyValue) Updates known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.

Examples

This example demonstrates how to read MPEG audio metadata from an MP3 file.

using (Metadata metadata = new Metadata(Constants.MP3WithID3V2))
{
    var root = metadata.GetRootPackage<MP3RootPackage>();

    Console.WriteLine(root.MpegAudioPackage.Bitrate);
    Console.WriteLine(root.MpegAudioPackage.ChannelMode);
    Console.WriteLine(root.MpegAudioPackage.Emphasis);
    Console.WriteLine(root.MpegAudioPackage.Frequency);
    Console.WriteLine(root.MpegAudioPackage.HeaderPosition);
    Console.WriteLine(root.MpegAudioPackage.Layer);

    // ...
}

See Also