WavPackage

WavPackage class

Represents a native metadata package in a WAV audio file.

public sealed class WavPackage : CustomPackage

Constructors

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

Properties

Name Description
AudioFormat { get; } Gets the audio format. PCM = 1 (i.e. Linear quantization). Values other than 1 indicate some form of compression.
BitsPerSample { get; } Gets the bits per sample value.
BlockAlign { get; } Gets the block align.
ByteRate { get; } Gets the byte rate.
Count { get; } Gets the number of metadata properties.
Item { get; } Gets the MetadataProperty with the specified name.
Keys { get; } Gets a collection of the metadata property names.
MetadataType { get; } Gets the metadata type.
NumberOfChannels { get; } Gets the number of channels.
PropertyDescriptors { get; } Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.
SampleRate { get; } Gets the sample rate.

Methods

Name Description
virtual 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.
virtual 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.
virtual 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.

Remarks

Learn more

Examples

This code sample shows how to extract technical audio information from a WAV file.

using (Metadata metadata = new Metadata(Constants.InputWav))
{
    var root = metadata.GetRootPackage<WavRootPackage>();
    if (root.WavPackage != null)
    {
        Console.WriteLine(root.WavPackage.AudioFormat);
        Console.WriteLine(root.WavPackage.BitsPerSample);
        Console.WriteLine(root.WavPackage.BlockAlign);
        Console.WriteLine(root.WavPackage.ByteRate);
        Console.WriteLine(root.WavPackage.NumberOfChannels);
        Console.WriteLine(root.WavPackage.SampleRate);
    }
}

See Also

MP3RootPackage WavRootPackage