private string DownloadTrackRepresentation(TrackRepresentation trackRepresentation, TimeSpan from, TimeSpan to)
{
var files = new List <string>();
var task = DownloadFragment(trackRepresentation.InitFragmentPath);
task.Wait(TimeSpan.FromMinutes(5));
if (task.Result)
{
files.Add(Path.Combine(destinationDir, GetLastPartOfPath(trackRepresentation.InitFragmentPath)));
foreach (var fragmentPath in trackRepresentation.GetFragmentsPaths(from, to))
{
task = DownloadFragment(fragmentPath);
task.Wait(TimeSpan.FromMinutes(5));
if (task.Result)
{
files.Add(Path.Combine(destinationDir, GetLastPartOfPath(fragmentPath)));
}
else
{
break;
}
}
}
string outputFile = Path.Combine(destinationDir, DateTime.Now.ToString("yyyyMMddHHmmss") + "_video.mp4");
CombineChunks(files, outputFile);
DeleteAllFilesExcept(outputFile, destinationDir);
return(outputFile);
}
private IEnumerable <Mp4File> DownloadTrackRepresentation(TrackRepresentation trackRepresentation, TimeSpan from, TimeSpan to, int concurrency = 2)
{
string initFile;
var files = new List <string>();
var task = DownloadFragment(trackRepresentation.InitFragmentPath);
task.Wait(TimeSpan.FromMinutes(5));
if (DownloadTaskSucceded(task))
{
initFile = task.Result;
bool complete = false;
int downloadedCount = 0;
while (!complete)
{
var tasks = trackRepresentation.GetFragmentsPaths(from, to)
.Skip(downloadedCount)
.Take(concurrency)
.Select(p => DownloadFragment(p))
.ToList();
tasks.ForEach(t => t.Wait(TimeSpan.FromMinutes(5)));
var succeeded = tasks.Where(t => DownloadTaskSucceded(t)).ToList();
succeeded.ForEach(t => files.Add(t.Result));
downloadedCount += succeeded.Count;
complete = !tasks.Any() || succeeded.Count != tasks.Count;
}
//var chunks = ProcessChunks(initFile, files);
var chunks = files.Select(f => new Mp4File(f)).ToList();
chunks.Insert(0, new Mp4InitFile(initFile));
//DeleteAllFilesExcept(outputFile, destinationDir);
return(chunks);
}
else
{
throw new Exception("Failed to download init file");
}
}
public Task <IEnumerable <Mp4File> > Download(TrackRepresentation trackRepresentation, TimeSpan from, TimeSpan to)
{
return(Task.Factory.StartNew(() => DownloadTrackRepresentation(trackRepresentation, from, to)));
}
public Task <IEnumerable <Mp4File> > Download(TrackRepresentation trackRepresentation)
{
return(Task.Factory.StartNew(() => DownloadTrackRepresentation(trackRepresentation, TimeSpan.Zero, TimeSpan.MaxValue)));
}
public Task <string> Download(TrackRepresentation trackRepresentation, TimeSpan from, TimeSpan to)
{
return(Task.Factory.StartNew(() => DownloadTrackRepresentation(trackRepresentation, from, to)));
}
public Task <string> Download(TrackRepresentation trackRepresentation)
{
return(Task.Factory.StartNew(() => DownloadTrackRepresentation(trackRepresentation, TimeSpan.Zero, TimeSpan.MaxValue)));
}
