AsfPackage

AsfRootPackage.AsfPackage property

Obtient le package de métadonnées ASF.

public AsfPackage AsfPackage { get; }

Valeur de la propriété

Le package de métadonnées ASF.

Remarques

Apprendre encore plus

Exemples

Cet exemple de code montre comment lire les métadonnées ASF natives.

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

    var package = root.AsfPackage;

    // Affiche les propriétés de base
    Console.WriteLine("Creation date: {0}", package.CreationDate);
    Console.WriteLine("File id: {0}", package.FileID);
    Console.WriteLine("Flags: {0}", package.Flags);

    // Afficher les informations du codec Asf
    foreach (var codecInfo in package.CodecInformation)
    {
        Console.WriteLine("Codec type: {0}", codecInfo.CodecType);
        Console.WriteLine("Description: {0}", codecInfo.Description);
        Console.WriteLine("Codec information: {0}", codecInfo.Information);
        Console.WriteLine(codecInfo.Name);
    }

    // Affiche les descripteurs de métadonnées
    foreach (AsfBaseDescriptor descriptor in package.MetadataDescriptors)
    {
        Console.WriteLine("Name: {0}", descriptor.Name);
        Console.WriteLine("Value: {0}", descriptor.Value);
        Console.WriteLine("Content type: {0}", descriptor.AsfContentType);
        AsfMetadataDescriptor metadataDescriptor = descriptor as AsfMetadataDescriptor;
        if (metadataDescriptor != null)
        {
            Console.WriteLine("Language: {0}", metadataDescriptor.Language);
            Console.WriteLine("Stream number: {0}", metadataDescriptor.StreamNumber);
            Console.WriteLine("Original name: {0}", metadataDescriptor.OriginalName);
        }
    }

    //Affiche les propriétés du flux de base
    foreach (AsfBaseStreamProperty property in package.StreamProperties)
    {
        Console.WriteLine("Alternate bitrate: {0}", property.AlternateBitrate);
        Console.WriteLine("Average bitrate: {0}", property.AverageBitrate);
        Console.WriteLine("Average time per frame: {0}", property.AverageTimePerFrame);
        Console.WriteLine("Bitrate: {0}", property.Bitrate);
        Console.WriteLine("Stream end time: {0}", property.EndTime);
        Console.WriteLine("Stream flags: {0}", property.Flags);
        Console.WriteLine("Stream language: {0}", property.Language);
        Console.WriteLine("Stream start time: {0}", property.StartTime);
        Console.WriteLine("Stream number: {0}", property.StreamNumber);
        Console.WriteLine("Stream type: {0}", property.StreamType);

        //Affiche les propriétés du flux audio
        AsfAudioStreamProperty audioStreamProperty = property as AsfAudioStreamProperty;
        if (audioStreamProperty != null)
        {
            Console.WriteLine("Audio bits per sample: {0}", audioStreamProperty.BitsPerSample);
            Console.WriteLine("Audio channels: {0}", audioStreamProperty.Channels);
            Console.WriteLine("Audio format tag: {0}", audioStreamProperty.FormatTag);
            Console.WriteLine("Audio samples per second: {0}", audioStreamProperty.SamplesPerSecond);
        }

        //Affiche les propriétés du flux vidéo
        AsfVideoStreamProperty videoStreamProperty = property as AsfVideoStreamProperty;
        if (videoStreamProperty != null)
        {
            Console.WriteLine("Video bits per pixels: {0}", videoStreamProperty.BitsPerPixels);
            Console.WriteLine("Compression: {0}", videoStreamProperty.Compression);
            Console.WriteLine("Image height: {0}", videoStreamProperty.ImageHeight);
            Console.WriteLine("Image width: {0}", videoStreamProperty.ImageWidth);
        }
    }
}

Voir également

XmpPackage