public static CommentsFrame Get(TagLib.Id3v2.Tag tag, string description, string language, bool create)
{
CommentsFrame frame;
IEnumerator<Frame> enumerator = tag.GetFrames(FrameType.COMM).GetEnumerator();
try
{
while (enumerator.MoveNext())
{
Frame current = enumerator.Current;
frame = current as CommentsFrame;
if (((frame != null) && (frame.Description == description)) && ((language == null) || (language == frame.Language)))
{
return frame;
}
}
}
finally
{
if (enumerator == null)
{
}
enumerator.Dispose();
}
if (!create)
{
return null;
}
frame = new CommentsFrame(description, language);
tag.AddFrame(frame);
return frame;
}
/// <summary>
/// Creates a deep copy of the current instance.
/// </summary>
/// <returns>
/// A new <see cref="Frame" /> object identical to the
/// current instance.
/// </returns>
public override Frame Clone ()
{
CommentsFrame frame = new CommentsFrame (description,
language, encoding);
frame.text = text;
return frame;
}
/// <summary>
/// Gets a specified comments frame from the specified tag,
/// optionally creating it if it does not exist.
/// </summary>
/// <param name="tag">
/// A <see cref="Tag" /> object to search in.
/// </param>
/// <param name="description">
/// A <see cref="string" /> specifying the description to
/// match.
/// </param>
/// <param name="language">
/// A <see cref="string" /> specifying the ISO-639-2 language
/// code to match.
/// </param>
/// <param name="create">
/// A <see cref="bool" /> specifying whether or not to create
/// and add a new frame to the tag if a match is not found.
/// </param>
/// <returns>
/// A <see cref="CommentsFrame" /> object containing the
/// matching frame, or <see langword="null" /> if a match
/// wasn't found and <paramref name="create" /> is <see
/// langword="false" />.
/// </returns>
public static CommentsFrame Get (Tag tag, string description,
string language, bool create)
{
CommentsFrame comm;
foreach (Frame frame in tag.GetFrames (FrameType.COMM)) {
comm = frame as CommentsFrame;
if (comm == null)
continue;
if (comm.Description != description)
continue;
if (language != null && language != comm.Language)
continue;
return comm;
}
if (!create)
return null;
comm = new CommentsFrame (description, language);
tag.AddFrame (comm);
return comm;
}
public void TestCommentsFrame ()
{
string desc = "description";
string lang = "ENG";
CommentsFrame frame = new CommentsFrame (desc, lang);
frame.Text = val_sing;
FrameTest (frame, 2,
delegate (Frame f, StringType e) {
(f as CommentsFrame).TextEncoding = e;
},
delegate (ByteVector d, byte v) {
return new CommentsFrame (d, v);
},
delegate (Frame f, string m) {
CommentsFrame g = (f as CommentsFrame);
Assert.AreEqual (desc, g.Description, m);
Assert.AreEqual (lang, g.Language, m);
Assert.AreEqual (val_sing, g.Text, m);
});
}
public void TestComment4Bytes ()
{
// Comment data found in the wild, see bgo#607376
var data = new byte[] { 67, 79, 77, 77, 0, 0, 0, 4, 0, 0, 0, 203, 0, 255 };
var frame = new CommentsFrame (data, 3);
Assert.IsEmpty (frame.Description);
Assert.IsEmpty (frame.Text);
}