static Box ParseBox(BoxLocation location, SequentialReader sr)
{
return(location.Type switch
{
BoxTypes.FTypTag => new FileTypeBox(location, sr),
BoxTypes.MetaTag => new MetaBox(location, sr),
BoxTypes.HdlrTag => new HandlerBox(location, sr),
BoxTypes.DinfTag => new DataInformationBox(location, sr),
BoxTypes.DrefTag => new DataReferenceBox(location, sr),
BoxTypes.UrlTag => new DataEntryLocationBox(location, sr, hasName: false),
BoxTypes.UrnTag => new DataEntryLocationBox(location, sr, hasName: true),
BoxTypes.PitmTag => new PrimaryItemBox(location, sr),
BoxTypes.Iinftag => new ItemInformationBox(location, sr),
BoxTypes.InfeTag => new ItemInfoEntryBox(location, sr),
BoxTypes.IrefTag => new ItemReferenceBox(location, sr),
BoxTypes.IprpTag => new ItemPropertyBox(location, sr),
BoxTypes.IpcoTag => new ItemPropertyContainerBox(location, sr),
BoxTypes.IspeTag => new ImageSpatialExtentsBox(location, sr),
BoxTypes.HvcCTag => new DecoderConfigurationBox(location, sr),
BoxTypes.ColrTag => new ColorInformationBox(location, sr),
BoxTypes.IrotTag => new ImageRotationBox(location, sr),
BoxTypes.PixiTag => new PixelInformationBox(location, sr),
BoxTypes.IdatTag => new ItemDataBox(location, sr),
BoxTypes.IlocTag => new ItemLocationBox(location, sr),
BoxTypes.IpmaTag => new ItemPropertyAssociationBox(location, sr),
_ => new Box(location)
});
public static List <Box> ReadBoxes(SequentialReader sr, BoxLocation loc)
{
var ret = new List <Box>();
while (sr.IsWithinBox(loc))
{
var box = ReadBox(sr);
if (box != null)
{
ret.Add(box);
}
}
return(ret);
}
public static bool IsWithinBox(this SequentialReader reader, BoxLocation location) => (ulong)reader.Position < location.NextPosition;
public static ulong BytesRemainingInBox(this SequentialReader reader, BoxLocation boxLocation) => boxLocation.NextPosition - (ulong)reader.Position;
public Box(BoxLocation location) => _location = location;
