private static void AddComponents(LightFieldPackage package, Json.FrameReferences references, byte[] imageData, Json.FrameMetadata frameMetadata, Json.FrameMetadata privateMetadata)
{
global::System.Diagnostics.Debug.Assert(package != null, "Package cannot be null.");
global::System.Diagnostics.Debug.Assert(references != null, "References cannot be null.");
global::System.Diagnostics.Debug.Assert(imageData != null, "Image data cannot be null.");
global::System.Diagnostics.Debug.Assert(frameMetadata != null, "Frame metadata cannot be null.");
global::System.Diagnostics.Debug.Assert(privateMetadata != null, "Private metadata cannot be null.");
LightFieldComponent privateComponent = new LightFieldComponent();
string privateJson = privateMetadata.ToStringJson();
privateComponent.Data = Encoding.UTF8.GetBytes(privateJson);
privateComponent.Reference = GenerateRef(privateComponent.Data);
references.PrivateMetadataRef = privateComponent.Reference;
LightFieldComponent frameComponent = new LightFieldComponent();
string frameJson = frameMetadata.ToStringJson();
frameComponent.Data = Encoding.UTF8.GetBytes(frameJson);
frameComponent.Reference = GenerateRef(frameComponent.Data);
references.MetadataRef = frameComponent.Reference;
LightFieldComponent imageComponent = new LightFieldComponent();
imageComponent.Data = imageData;
imageComponent.Reference = GenerateRef(imageComponent.Data);
references.ImageRef = imageComponent.Reference;
package.Components.Add(imageComponent);
package.Components.Add(frameComponent);
package.Components.Add(privateComponent);
}
/// <summary>
/// Loads all available flat field images from a calibration package.
/// </summary>
/// <param name="package">The package to load the flat field images from.</param>
/// <param name="packageReference">Reference to the package (usually its file path).</param>
/// <returns>a number of flat field images that were added to the current set.</returns>
/// <exception cref="ArgumentNullException"><paramref name="packageReference"/> is null</exception>
public int LoadFrom(LightFieldPackage package, string packageReference)
{
Dictionary <string, FlatFieldItem> items = new Dictionary <string, FlatFieldItem>(StringComparer.OrdinalIgnoreCase);
LoadFromPhase1(package, packageReference, items);
return(LoadFromPhase2(items));
}
/// <summary>
/// Initializes a new instance of the <see cref="PackageAccessor"/> class.
/// </summary>
/// <param name="package">The package to be accessed.</param>
public PackageAccessor(LightFieldPackage package)
{
if (package == null)
{
throw new ArgumentNullException("package");
}
_package = package;
LightFieldComponent metadata = package.GetMetadata().FirstOrDefault();
if (metadata != null)
{
_master = new Json.Master();
_master.LoadFromJson(metadata.GetDataAsString());
}
_exceptions = new List <Exception>();
_hasContent = Initialize();
}
/// <summary>
/// Initializes new instance of the <see cref="RawPackageAccessor"/> class.
/// </summary>
/// <param name="package">The package with raw images.</param>
public RawPackageAccessor(LightFieldPackage package) : base(package)
{
}
/// <summary>
/// Initializes new instance of the <see cref="DepthPackageAccessor"/> class.
/// </summary>
/// <param name="package">The package with raw images.</param>
public DepthPackageAccessor(LightFieldPackage package) : base(package)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="FilesPackageAccessor"/> class.
/// </summary>
/// <param name="package">The package containing files to access.</param>
public FilesPackageAccessor(LightFieldPackage package) : base(package)
{
}
/// <summary>
/// Creates a new <see cref="LightFieldPackage"/> from raw camera files.
/// </summary>
/// <param name="rootMetadata">The picture metadata.</param>
/// <param name="imageData">Frames raw data in order specified by the metadata.</param>
/// <returns>A <see cref="LightFieldPackage"/> with components containing the specified files.</returns>
/// <exception cref="ArgumentNullException"><paramref name="rootMetadata"/>, <paramref name="imageData"/> itself or any data in the array is null.</exception>
/// <exception cref="ArgumentException">Metadata do not contain information required to create the package, or the <paramref name="imageData"/> contains less items than there is frames in the metadata.</exception>
public static LightFieldPackage FromCameraFiles(Json.Root rootMetadata, IEnumerable <byte[]> imageData)
{
if (imageData == null)
{
throw new ArgumentNullException("imageData");
}
if (rootMetadata == null)
{
throw new ArgumentNullException("rootMetadata");
}
if (rootMetadata.Master == null || rootMetadata.Master.Picture == null || rootMetadata.Master.Picture.FrameArray == null)
{
throw new ArgumentException("Critical metadata missing.", "rootMetadata");
}
LightFieldPackage package = new LightFieldPackage();
Json.Master metadata = rootMetadata.Master;
IEnumerator <byte[]> rawDataEnumerator = imageData.GetEnumerator();
for (int i = 0; i < metadata.Picture.FrameArray.Length; i++)
{
Json.FrameItem frameItem = metadata.Picture.FrameArray[i];
if (frameItem == null || frameItem.Frame == null || frameItem.Frame.Metadata == null)
{
throw new ArgumentException("Missing metadata for frame " + i + ".", "rootMetadata");
}
if (!rawDataEnumerator.MoveNext())
{
throw new ArgumentException("Missing image data for frame " + i + ".", "imageData");
}
byte[] data = rawDataEnumerator.Current;
if (data == null)
{
throw new ArgumentNullException("Image data cannot be null.", "imageData");
}
Json.FrameMetadata frameMetadata = frameItem.Frame.Metadata;
frameItem.Frame.Metadata = null;
Json.FrameMetadata privateMetadata = frameItem.Frame.PrivateMetadata;
frameItem.Frame.PrivateMetadata = null;
AddComponents(package, frameItem.Frame, data, frameMetadata, privateMetadata);
}
LightFieldComponent metadataComponent = new LightFieldComponent();
metadataComponent.ComponentType = 'M';
metadataComponent.Data = Encoding.UTF8.GetBytes(metadata.ToStringJson());
metadataComponent.Reference = GenerateRef(metadataComponent.Data);
package.Components.Insert(1, metadataComponent);
return(package);
}
private string LoadFromPhase1(LightFieldPackage package, string packageReference, Dictionary <string, FlatFieldItem> items)
{
LightFieldComponent metadataComponent = package.GetMetadata().FirstOrDefault();
if (metadataComponent == null)
{
return(null);
}
Json.Master master = new Json.Master();
master.LoadFromJson(metadataComponent.GetDataAsString());
if (master.Files != null)
{
foreach (Json.File file in master.Files)
{
if (file.Name != null && file.Name.StartsWith(@"C:\T1CALIB\MOD_", StringComparison.OrdinalIgnoreCase))
{
if (file.Name.EndsWith(".TXT", StringComparison.OrdinalIgnoreCase))
{
LightFieldComponent imageMetadataComponent = package.GetComponent(file.DataRef).FirstOrDefault();
if (imageMetadataComponent != null)
{
Json.Root imageRoot = new Json.Root();
imageRoot.LoadFromJson(imageMetadataComponent.GetDataAsString());
if (imageRoot.Master != null && imageRoot.Master.Picture != null && imageRoot.Master.Picture.FrameArray != null && imageRoot.Master.Picture.FrameArray.Length > 0)
{
Json.FrameItem frameItem = imageRoot.Master.Picture.FrameArray[0];
if (frameItem != null && frameItem.Frame != null && frameItem.Frame.Metadata != null && frameItem.Frame.Metadata.Devices != null && frameItem.Frame.Metadata.Devices.Lens != null)
{
string imageFileName = file.Name.Substring(0, file.Name.Length - 3) + "RAW";
FlatFieldItem item;
if (!items.TryGetValue(imageFileName, out item))
{
items[imageFileName] = item = new FlatFieldItem();
}
item.FrameImage = frameItem.Frame.Metadata.Image;
item.ZoomStep = (int)frameItem.Frame.Metadata.Devices.Lens.ZoomStep;
item.FocusStep = (int)frameItem.Frame.Metadata.Devices.Lens.FocusStep;
if (_serialNumber == null && frameItem.Frame.PrivateMetadata != null && frameItem.Frame.PrivateMetadata.Camera != null)
{
_serialNumber = frameItem.Frame.PrivateMetadata.Camera.SerialNumber;
}
}
}
}
}
else if (file.Name.EndsWith(".RAW", StringComparison.OrdinalIgnoreCase))
{
FlatFieldItem item;
if (!items.TryGetValue(file.Name, out item))
{
items[file.Name] = item = new FlatFieldItem();
}
item.DataReference = file.DataRef;
item.PackageReference = packageReference;
}
}
}
}
RawPackageAccessor raw = package.AccessRaw();
if (raw.HasContent)
{
foreach (Json.FrameReferences frame in raw.GetFrames())
{
if (frame.Metadata != null && frame.ImageRef != null)
{
FlatFieldItem item = new FlatFieldItem();
item.PackageReference = packageReference;
item.DataReference = frame.ImageRef;
item.FrameImage = frame.Metadata.Image;
if (frame.Metadata.Devices != null && frame.Metadata.Devices.Lens != null)
{
item.ZoomStep = (int)frame.Metadata.Devices.Lens.ZoomStep;
item.FocusStep = (int)frame.Metadata.Devices.Lens.FocusStep;
items[frame.ImageRef] = item;
}
}
}
}
return(master.NextFile);
}
