public void CheckMultiSourceRandomSeeking()
{
var stream1 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var stream2 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream1, stream2);
int seekOffset = 200 * stream1.SampleBlockSize;
// Check seek into first segment
cc.Position = seekOffset;
Assert.AreEqual(seekOffset, cc.Position);
var bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(cc.Length - seekOffset, bytesRead);
// Check seek into second segment
cc.Position = stream1.Length + seekOffset;
Assert.AreEqual(stream1.Length + seekOffset, cc.Position);
bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(cc.Length - stream1.Length - seekOffset, bytesRead);
// Check seek back into first segment
cc.Position = seekOffset;
Assert.AreEqual(seekOffset, cc.Position);
bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(cc.Length - seekOffset, bytesRead);
}
public void CheckMultiSourceSeekToEnd()
{
var stream1 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var stream2 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream1, stream2);
// Seek to the end where zero bytes are expected to be read
cc.Position = cc.Length;
var bytesRead = StreamUtil.ReadAllAndCount(cc);
Assert.AreEqual(0, bytesRead);
}
public void CheckSingleSourceLength()
{
var stream = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream);
// Ensure that the lengths match
Assert.AreEqual(stream.Length, cc.Length);
var bytesRead = StreamUtil.ReadAllAndCount(cc);
// Ensure that the read bytes equals the length
Assert.AreEqual(stream.Length, bytesRead);
}
public IAudioStream CreateAudioStream()
{
IAudioStream stream = null;
if (MultiFile)
{
stream = new ConcatenationStream(FileInfos.Select(fi => AudioStreamFactory.FromFileInfoIeee32(fi)).ToArray());
}
else
{
stream = AudioStreamFactory.FromFileInfoIeee32(FileInfo);
}
return(new TimeWarpStream(stream, timeWarps));
}
public void CheckSingleSourceSeeking()
{
var stream = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream);
int seek = 200 * stream.SampleBlockSize;
cc.Position = seek;
// Ensure that the position is correct
Assert.AreEqual(seek, cc.Position);
var bytesRead = StreamUtil.ReadAllAndCount(cc);
// Ensure that the expected remaining bytes match the seek position
Assert.AreEqual(cc.Length - seek, bytesRead);
}
private void bw_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
Parameters parameters = (Parameters)e.Argument;
var streams = parameters.SourceFiles.Select(fi => AudioStreamFactory.FromFileInfo(fi));
// load source stream
var sourceStream = new ConcatenationStream(streams.ToArray());
var firstFile = parameters.SourceFiles.First();
string targetFileNamePrefix = firstFile.FullName.Remove(firstFile.FullName.Length - firstFile.Extension.Length);
string targetFileNameSuffix = firstFile.Extension;
int partCount = 0;
Random random = new Random();
CropStream cropStream = new CropStream(sourceStream, 0, 0);
while (sourceStream.Position < sourceStream.Length)
{
partCount++;
int length = random.Next(parameters.MinLength, parameters.MaxLength); // length in seconds of the current part to write
long byteLength = TimeUtil.TimeSpanToBytes(new TimeSpan(TimeUtil.SECS_TO_TICKS * length), cropStream.Properties);
Debug.WriteLine("writing part " + partCount + " (" + length + " secs = " + byteLength + " bytes)");
Debug.WriteLine("before: " + cropStream.Begin + " / " + cropStream.End + " / " + cropStream.Position + " / " + sourceStream.Position);
cropStream.Begin = cropStream.End;
cropStream.End += sourceStream.Length - cropStream.Begin < byteLength ? sourceStream.Length - cropStream.Begin : byteLength;
cropStream.Position = 0;
Debug.WriteLine("after : " + cropStream.Begin + " / " + cropStream.End + " / " + cropStream.Position + " / " + sourceStream.Position);
AudioStreamFactory.WriteToFile(cropStream, String.Format("{0}.part{1:000}{2}", targetFileNamePrefix, partCount, targetFileNameSuffix));
if (worker.CancellationPending)
{
e.Cancel = true;
Debug.WriteLine("canceled");
return;
}
worker.ReportProgress((int)((double)sourceStream.Position / sourceStream.Length * 100));
}
Debug.WriteLine("finished");
}
public void CheckMultiSourceMatchingFormat()
{
var stream1 = new SineGeneratorStream(44100, 440, new TimeSpan(0, 0, 1));
var stream2 = new SineGeneratorStream(96000, 440, new TimeSpan(0, 0, 1));
var cc = new ConcatenationStream(stream1, stream2);
}
