public void ReadsSegmentInfo()
{
var stream = new MemoryStream();
var writer = new EbmlWriter(stream);
using (var segment = writer.StartMasterElement(MatroskaDtd.Segment.Identifier))
{
using (var segmentInfo = segment.StartMasterElement(MatroskaDtd.Segment.Info.Identifier))
{
segmentInfo.WriteUtf(MatroskaDtd.Segment.Info.Title.Identifier, "Test data");
segmentInfo.WriteUtf(MatroskaDtd.Segment.Info.WritingApp.Identifier, "writing app");
segmentInfo.WriteUtf(MatroskaDtd.Segment.Info.MuxingApp.Identifier, "mux app");
segmentInfo.Write(MatroskaDtd.Segment.Info.Duration.Identifier, 1234f);
}
// write some dummy data
segment.Write(VInt.MakeId(123), 0);
}
stream.Position = 0;
var infoReader = new SegmentInfoUpdater();
infoReader.Open(stream);
Assert.AreEqual("Test data", infoReader.Title);
Assert.AreEqual("writing app", infoReader.WritingApp);
Assert.AreEqual("mux app", infoReader.MuxingApp);
Assert.AreEqual(TimeSpan.FromMilliseconds(1234), infoReader.Duration);
}
/// <summary>
/// Applies changes to a files
/// </summary>
/// <returns></returns>
public IEnumerable <Exception> ApplyPendingChanges()
{
// don't want to introduce another class hierarchy so simply using exception
var errors = new List <Exception>();
foreach (var entry in _entries.Where(model => model.IsDirty))
{
var file = new FileInfo(entry.FullName);
// check various error conditions
if (!file.Exists)
{
errors.Add(new FileNotFoundException("", entry.FullName));
continue;
}
var isReadOnly = file.IsReadOnly;
try
{
if (isReadOnly)
{
if (UpdateReadonlyFiles)
{
file.IsReadOnly = false;
}
else
{
errors.Add(new Exception(String.Format("File is readonly: {0}", entry.FullName)));
continue;
}
}
using (var upd = new SegmentInfoUpdater())
{
upd.Open(file);
upd.Title = entry.Title;
upd.Write();
}
if (isReadOnly)
{
file.IsReadOnly = true;
}
}
catch (Exception e)
{
errors.Add(e);
}
}
return(errors);
}
public void ReusesPriorFiller()
{
var stream = new MemoryStream();
var writer = new EbmlWriter(stream);
writer.Write(VInt.MakeId(122), 321);
using (var segment = writer.StartMasterElement(MatroskaDtd.Segment.Identifier))
{
segment.Write(StandardDtd.Void.Identifier, new byte[1000]);
using (var segmentInfo = segment.StartMasterElement(MatroskaDtd.Segment.Info.Identifier))
{
segmentInfo.WriteUtf(MatroskaDtd.Segment.Info.Title.Identifier, "Test data");
}
// write some dummy data
segment.Write(VInt.MakeId(123), 123); // marker
}
stream.Position = 0;
// act
var infoReader = new SegmentInfoUpdater();
infoReader.Open(stream);
infoReader.Title = new string('a', 500);
infoReader.Write();
// verify the stream is correct
stream.Position = 0;
var reader = new EbmlReader(stream);
reader.ReadNext();
Assert.AreEqual(122, reader.ElementId.Value, "start marker");
Assert.AreEqual(321, reader.ReadInt());
reader.ReadNext();
Assert.AreEqual(MatroskaDtd.Segment.Identifier, reader.ElementId);
reader.EnterContainer();
reader.ReadNext();
Assert.AreEqual(MatroskaDtd.Segment.Info.Identifier, reader.ElementId);
Assert.Greater(reader.ElementSize, 500);
reader.ReadNext();
Assert.AreEqual(StandardDtd.Void.Identifier, reader.ElementId);
reader.ReadNext();
Assert.AreEqual(123, reader.ElementId.Value, "end data marker");
Assert.AreEqual(123, reader.ReadInt());
}
/// <summary>
/// Creates new entry for MKV file (reads attributes from file)
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static ListEntryViewModel CreateMkvFile(FileInfo file)
{
using (var upd = new SegmentInfoUpdater())
{
upd.OpenRead(file);
var ts = upd.Duration;
return(new File(file, upd.Title)
{
Duration = string.Format("{0:00}:{1:00}:{2:00}", (int)ts.TotalHours, ts.Minutes, ts.Seconds)
});
}
}
public void SimpleUseCase()
{
var file = new FileInfo(@"Z:\!\t.mkv");
var segmentInfo = new SegmentInfoUpdater();
segmentInfo.Open(file);
Debug.Print("Duration: {0}", segmentInfo.Duration);
Debug.Print("MuxingApp: {0}", segmentInfo.MuxingApp);
Debug.Print("WritingApp: {0}", segmentInfo.WritingApp);
Debug.Print("Title: {0}", segmentInfo.Title);
segmentInfo.Title = "s4e16 The Cohabitation Formulation";
segmentInfo.WritingApp = "NEbml.Viewer 0.1";
segmentInfo.Write();
segmentInfo.Close();
}
public void SegmentInfoReaderSimpleUseCase()
{
var file = new FileInfo(SampleFilePath);
using (var fileStream = file.Open(FileMode.Open, FileAccess.ReadWrite))
using (var segmentInfo = new SegmentInfoUpdater())
{
segmentInfo.Open(fileStream);
Debug.Print("Duration: {0}", segmentInfo.Duration);
Debug.Print("MuxingApp: {0}", segmentInfo.MuxingApp);
Debug.Print("WritingApp: {0}", segmentInfo.WritingApp);
Debug.Print("Title: {0}", segmentInfo.Title);
segmentInfo.Title = "s4e16 The Cohabitation Formulation";
segmentInfo.WritingApp = "NEbml.Viewer 0.1";
segmentInfo.Write();
}
}
