AsfPackage

AsfRootPackage.AsfPackage property

Ottiene il pacchetto di metadati ASF.

public AsfPackage AsfPackage { get; }

Valore della proprietà

Il pacchetto di metadati ASF.

Osservazioni

Saperne di più

Esempi

Questo esempio di codice mostra come leggere i metadati ASF nativi.

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

    var package = root.AsfPackage;

    // Visualizza le proprietà di base
    Console.WriteLine("Creation date: {0}", package.CreationDate);
    Console.WriteLine("File id: {0}", package.FileID);
    Console.WriteLine("Flags: {0}", package.Flags);

    // Visualizza le informazioni sul 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);
    }

    // Visualizza i descrittori dei metadati
    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);
        }
    }

    //Visualizza le proprietà del flusso di 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);

        //Visualizza le proprietà del flusso 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);
        }

        //Visualizza le proprietà del flusso video
        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);
        }
    }
}

Guarda anche

XmpPackage