private TLFile GetFile(TLInt dcId, TLInputVideoFileLocation location, TLInt offset, TLInt limit)
{
var manualResetEvent = new ManualResetEvent(false);
TLFile result = null;
_mtProtoService.GetFileAsync(dcId, location, offset, limit,
file =>
{
result = file;
manualResetEvent.Set();
},
error =>
{
int delay;
lock (_randomRoot)
{
delay = _random.Next(1000, 3000);
}
Execute.BeginOnThreadPool(TimeSpan.FromMilliseconds(delay), () => manualResetEvent.Set());
});
manualResetEvent.WaitOne();
return(result);
}
private DownloadableItem GetDownloadableItem(TLInt dcId, TLInputVideoFileLocation location, TLObject owner, TLInt fileSize)
{
var item = new DownloadableItem
{
Owner = owner,
DCId = dcId,
InputVideoLocation = location
};
item.Parts = GetItemParts(fileSize, item);
return(item);
}
public void DownloadFileAsync(TLInt dcId, TLInputVideoFileLocation fileLocation, TLObject owner, TLInt fileSize, Action <double> callback)
{
Execute.BeginOnThreadPool(() =>
{
var downloadableItem = GetDownloadableItem(dcId, fileLocation, owner, fileSize);
var downloadedCount = downloadableItem.Parts.Count(x => x.Status == PartStatus.Processed);
var count = downloadableItem.Parts.Count;
var isComplete = downloadedCount == count;
if (isComplete)
{
var id = downloadableItem.InputVideoLocation.Id;
var accessHash = downloadableItem.InputVideoLocation.AccessHash;
var fileName = string.Format("video{0}_{1}.mp4", id, accessHash);
var getPartName = new Func <DownloadablePart, string>(x => string.Format("video{0}_{1}_{2}.dat", id, accessHash, x.Number));
FileUtils.MergePartsToFile(getPartName, downloadableItem.Parts, fileName);
downloadableItem.IsoFileName = fileName;
_eventAggregator.Publish(downloadableItem);
}
else
{
var progress = downloadedCount / (double)count;
callback.SafeInvoke(progress);
lock (_itemsSyncRoot)
{
bool addFile = true;
foreach (var item in _items)
{
if (item.InputVideoLocation.AccessHash.Value == fileLocation.AccessHash.Value &&
item.InputVideoLocation.Id.Value == fileLocation.Id.Value &&
item.Owner == owner)
{
addFile = false;
break;
}
}
if (addFile)
{
_items.Add(downloadableItem);
}
}
StartAwaitingWorkers();
}
});
}
