/// <summary>
/// Loads a <see cref="FieldImage"/> from a <see cref="LightFieldComponent"/> and metadata.
/// </summary>
/// <param name="frame">The raw frame component.</param>
/// <param name="frameMetadata">The raw frame metadata.</param>
/// <param name="privateMetadata">The private metadata.</param>
/// <returns>a new instance of the <see cref="FieldImage"/> class.</returns>
public static FieldImage From(LightFieldComponent frame, Json.FrameMetadata frameMetadata, Json.FrameMetadata privateMetadata = null)
{
if (frame == null)
{
throw new ArgumentNullException("frame");
}
return(new FieldImage(frame, frameMetadata, privateMetadata));
}
private FieldImage(LightFieldComponent frame, Json.FrameMetadata frameMetadata, Json.FrameMetadata privateMetadata)
{
_metadata = frameMetadata;
_privateMetadata = privateMetadata;
_frameData = frame.Data;
_width = (int)_metadata.Image.Width;
_height = (int)_metadata.Image.Height;
}
/// <summary>
/// Initializes a new instance of the <see cref="RawImage"/> class from a <see cref="LightFieldComponent"/>.
/// </summary>
/// <param name="frame">The raw frame component.</param>
/// <param name="imageMetadata">The metadata with packing parameters.</param>
public RawImage(LightFieldComponent frame, Json.FrameImage imageMetadata)
{
if (frame == null)
throw new ArgumentNullException("frame");
if (frame.Length < 1)
throw new ArgumentException("Component does not contain any data.", "frame");
VerifyMetadata(imageMetadata, out _width, out _height);
_data = Unpack(frame.Data, _width, _height);
}
/// <summary>
/// Loads a <see cref="FieldImage"/> from a <see cref="LightFieldPackage"/>.
/// </summary>
/// <param name="package">The package to load the field image from.</param>
/// <returns>a new instance of the <see cref="FieldImage"/> class.</returns>
public static FieldImage From(LightFieldPackage package)
{
if (package == null)
{
throw new ArgumentNullException("package");
}
LightFieldComponent metadataComponent = package.GetMetadata().FirstOrDefault();
if (metadataComponent == null)
{
throw new ArgumentException("The package does not contain any metadata.", "package");
}
Json.Master master = new Json.Master();
try { master.LoadFromJson(metadataComponent.GetDataAsString()); }
catch (FormatException e) { throw new ArgumentException("The package contains invalid metadata.", e); }
if (master.Picture == null)
{
throw new ArgumentException("The package does not contain required metadata.", "package");
}
PictureMetadata pictureMetadata = new PictureMetadata(master.Picture);
LightFieldComponent frameMetadataComponent = package.GetComponent(pictureMetadata.Frame.MetadataReference).FirstOrDefault();
if (frameMetadataComponent == null)
{
throw new ArgumentException("The package does not contain any frame metadata.", "package");
}
Json.FrameMetadata frameMetadata = new Json.FrameMetadata();
try { frameMetadata.LoadFromJson(frameMetadataComponent.GetDataAsString()); }
catch (FormatException e) { throw new ArgumentException("The package contains invalid metadata.", e); }
Json.FrameMetadata privateMetadata = new Json.FrameMetadata();
LightFieldComponent privateMetadataComponent = package.GetComponent(pictureMetadata.Frame.PrivateMetadataReference).FirstOrDefault();
if (privateMetadataComponent != null)
{
try { privateMetadata.LoadFromJson(frameMetadataComponent.GetDataAsString()); }
catch (FormatException) { }
}
LightFieldComponent frameComponent = package.GetComponent(pictureMetadata.Frame.ImageReference).FirstOrDefault();
if (frameComponent == null)
{
throw new ArgumentException("The package does not contain the frame data.", "package");
}
return(new FieldImage(frameComponent, frameMetadata, privateMetadata));
}
