private void Calculate_DoWork(object s, DoWorkEventArgs args)
{
try
{
string fileName = _CalculateManifestSaveFileDialog.FileName;
using var output = new StreamWriter(fileName, false, Encoding.UTF8);
foreach (StreamInfo streamInfo in _ManifestInfo.Streams)
{
foreach (QualityLevelInfo qualityLevel in streamInfo.QualityLevels)
{
var stream = new Mp4FileStream(qualityLevel.Filename, FileAccess.Read);
try
{
Mp4MfraBox mfra = GetMfra(stream);
var tfra = mfra.Children.OfType <Mp4TfraBox>()
.First(b => b.TrackId == qualityLevel.TrackId);
foreach (MediaChunk chunk in streamInfo.Chunks)
{
Mp4TfraEntry entry = tfra.Entries[chunk.ChunkId];
stream.Position = (long)entry.MoofOffset;
uint size = 0;
// moof
size = stream.ReadUInt32();
stream.Position += size - 4;
// mdat
size += stream.ReadUInt32();
string line = string.Format("mediatype={0},bitrate={1},starttime={2},file={3},offset={4},size={5}", streamInfo.MediaType.ToString().ToLower(), qualityLevel.Bitrate, entry.Time, Path.GetFileName(qualityLevel.Filename), entry.MoofOffset, size);
output.WriteLine(line);
}
}
finally
{
stream.Close();
}
}
}
}
catch (Exception ex)
{
_DoWorkException = ex;
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonbuttonCalculate_Click(object sender, RoutedEventArgs e)
{
try
{
SaveFileDialog safeFileDialog = new SaveFileDialog();
safeFileDialog.Filter = "Fixed offset video file (*.fov)|*.fov";
safeFileDialog.FilterIndex = 1;
safeFileDialog.FileName = Path.Combine(Path.GetDirectoryName(manifestInfo.Filename), manifestInfo.Name + ".fov");
if (safeFileDialog.ShowDialog() == true)
{
BackgroundWorker backgroundWorker = new BackgroundWorker();
Exception exceptionError = null;
backgroundWorker.DoWork += delegate(object s, DoWorkEventArgs args)
{
try
{
string fileName = safeFileDialog.FileName;
TextWriter output = new StreamWriter(fileName, false, Encoding.UTF8);
try
{
foreach (StreamInfo streamInfo in manifestInfo.Streams)
{
foreach (QualityLevelInfo qualityLevel in streamInfo.QualityLevels)
{
Mp4Stream stream = new Mp4FileStream(qualityLevel.Filename, FileAccess.Read);
try
{
Mp4MfraBox mfra = GetMfra(stream);
Mp4TfraBox tfra = (Mp4TfraBox)mfra.Children.First(b => b.Type == Mp4BoxType.TFRA && ((Mp4TfraBox)b).TrackId == qualityLevel.TrackId);
foreach (MediaChunk chunk in streamInfo.Chunks)
{
Mp4TfraEntry entry = tfra.Entries[chunk.ChunkId];
stream.Position = (long)entry.MoofOffset;
uint size = 0;
// moof
size = stream.ReadUInt32();
stream.Position += (size - 4);
// mdat
size += stream.ReadUInt32();
string line = string.Format("mediatype={0},bitrate={1},starttime={2},file={3},offset={4},size={5}", streamInfo.MediaType.ToString().ToLower(), qualityLevel.Bitrate, entry.Time, Path.GetFileName(qualityLevel.Filename), entry.MoofOffset, size);
output.WriteLine(line);
}
}
finally
{
stream.Close();
}
}
}
}
finally
{
output.Close();
}
}
catch (Exception ex)
{
exceptionError = ex;
}
};
ProgressWindow progressWindow = new ProgressWindow();
progressWindow.Owner = this;
progressWindow.Worker = backgroundWorker;
progressWindow.ShowDialog();
if (exceptionError == null)
{
MessageBox.Show("Fixed offset file created.", "Success", MessageBoxButton.OK, MessageBoxImage.Information);
}
else
{
throw exceptionError;
}
}
}
catch (Exception ex)
{
ErrorWindow errorWindow = new ErrorWindow("Error reading the video set of files.", ex);
errorWindow.Owner = this;
errorWindow.ShowDialog();
}
}
