public File (File.IFileAbstraction abstraction,
ReadStyle propertiesStyle) : base (abstraction)
{
uint riff_size;
long tag_start, tag_end;
Mode = AccessMode.Read;
try {
Read (true, propertiesStyle, out riff_size,
out tag_start, out tag_end);
} finally {
Mode = AccessMode.Closed;
}
TagTypesOnDisk = TagTypes;
GetTag (TagTypes.Id3v2, true);
GetTag (TagTypes.RiffInfo, true);
GetTag (TagTypes.MovieId, true);
GetTag (TagTypes.DivX, true);
}
public File (File.IFileAbstraction abstraction) : this (abstraction, ReadStyle.Average)
{}
/// <summary>
/// Constructs and initializes a new instance of <see
/// cref="DivXTag" /> by reading the contents from a
/// specified position in a specified file.
/// </summary>
/// <param name="file">
/// A <see cref="File" /> object containing the file from
/// which the contents of the new instance is to be read.
/// </param>
/// <param name="position">
/// A <see cref="long" /> value specify at what position to
/// read the tag.
/// </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="file" /> is <see langref="null" />.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// <paramref name="position" /> is less than zero or greater
/// than the size of the file.
/// </exception>
/// <exception cref="CorruptFileException">
/// The file does not contain the file identifier at the
/// correct offset from the given position.
/// </exception>
public DivXTag (File file, long position)
{
if (file == null)
throw new ArgumentNullException ("file");
file.Mode = TagLib.File.AccessMode.Read;
if (position < 0 ||
position > file.Length - Size)
throw new ArgumentOutOfRangeException (
"position");
file.Seek (position);
// read the tag -- always 128 bytes
ByteVector data = file.ReadBlock ((int) Size);
// some initial sanity checking
if (!data.EndsWith (FileIdentifier))
throw new CorruptFileException (
"DivX tag data does not end with identifier.");
Parse (data);
}