private void DownloadVideo(string id)
{
try
{
lock (_commandLockObject)
{
if (!string.IsNullOrWhiteSpace(id))
{
TwitchVideo video = Videos.Where(v => v.Id == id).FirstOrDefault();
if (video != null)
{
TwitchVideoAuthInfo vodAuthInfo = _apiService.GetVodAuthInfo(video.Id);
if (!vodAuthInfo.Privileged && vodAuthInfo.SubOnly)
{
if (_isAuthenticatedSubOnly)
{
_dialogService.ShowMessageBox("This video is sub-only but you are not subscribed to the channel!", "Download", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
else
{
_dialogService.ShowMessageBox("This video is sub-only! You need to enable sub-only video download support first!", "Download", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
return;
}
Dictionary <TwitchVideoQuality, string> playlistInfo = _apiService.GetPlaylistInfo(id, vodAuthInfo);
List <TwitchVideoQuality> qualities = playlistInfo.Keys.OrderBy(q => q).ToList();
Preferences currentPrefs = _preferencesService.CurrentPreferences.Clone();
TwitchVideoQuality selectedQuality = GetSelectedQuality(qualities, currentPrefs.DownloadDefaultQuality);
string folder = currentPrefs.DownloadSubfoldersForFav && _preferencesService.IsChannelInFavourites(video.Channel)
? Path.Combine(currentPrefs.DownloadFolder, video.Channel)
: currentPrefs.DownloadFolder;
string filename = _filenameService.SubstituteWildcards(currentPrefs.DownloadFileName, video, selectedQuality);
filename = _filenameService.EnsureExtension(filename, currentPrefs.DownloadDisableConversion);
DownloadParameters downloadParams = new DownloadParameters(video, qualities, selectedQuality, folder, filename, currentPrefs.DownloadDisableConversion);
if (video.StartTime.HasValue)
{
downloadParams.CropStartTime = video.StartTime.Value;
}
_navigationService.ShowDownload(downloadParams);
}
}
}
}
catch (Exception ex)
{
_dialogService.ShowAndLogException(ex);
}
}
private void WriteVodAuthInfo(Action <string> log, TwitchVideoAuthInfo vodAuthInfo)
{
log(Environment.NewLine + Environment.NewLine + "ACCESS INFO");
log(Environment.NewLine + "--------------------------------------------------------------------------------------------");
log(Environment.NewLine + "Token: " + vodAuthInfo.Token);
log(Environment.NewLine + "Signature: " + vodAuthInfo.Signature);
log(Environment.NewLine + "Sub-Only: " + (vodAuthInfo.SubOnly ? "Yes" : "No"));
log(Environment.NewLine + "Privileged: " + (vodAuthInfo.Privileged ? "Yes" : "No"));
}
public Dictionary <TwitchVideoQuality, string> GetPlaylistInfo(string vodId, TwitchVideoAuthInfo vodAuthInfo)
{
using (WebClient webClient = CreateWebClientWithEncoding())
{
webClient.Headers.Add("Accept", "*/*");
webClient.QueryString.Add("allow_source", "true");
webClient.QueryString.Add("allow_audio_only", "true");
webClient.QueryString.Add("token", vodAuthInfo.Token);
webClient.QueryString.Add("sig", vodAuthInfo.Signature);
string playlist = webClient.DownloadString(string.Format(PLAYLISTS_URL, vodId));
List <string> lines = playlist.Split(new string[] { "\n" }, StringSplitOptions.RemoveEmptyEntries).ToList();
Dictionary <TwitchVideoQuality, string> playlistInfo = new Dictionary <TwitchVideoQuality, string>();
for (int i = 0; i < lines.Count; i++)
{
string line = lines[i];
if (!line.StartsWith("#"))
{
string mediaInfo = lines[i - 2];
string streamInfo = lines[i - 1];
Match groupMatch = _rxGroup.Match(mediaInfo);
string id = groupMatch.Groups["group"].Value;
Match nameMatch = _rxName.Match(mediaInfo);
string name = nameMatch.Groups["name"].Value;
string resolution = null;
Match resolutionMatch = _rxResolution.Match(streamInfo);
if (resolutionMatch.Success)
{
resolution = resolutionMatch.Groups["resolution"].Value;
}
TwitchVideoQuality quality = new TwitchVideoQuality(id, name, resolution);
playlistInfo.Add(quality, line);
}
}
return(playlistInfo);
}
}
private void StartQueuedDownloadIfExists()
{
if (_paused)
{
return;
}
if (Monitor.TryEnter(_changeDownloadLockObject))
{
try
{
if (!_downloads.Where(d => d.DownloadState == DownloadState.Downloading).Any())
{
TwitchVideoDownload download = _downloads.Where(d => d.DownloadState == DownloadState.Queued).FirstOrDefault();
if (download == null)
{
return;
}
DownloadParameters downloadParams = download.DownloadParams;
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
CancellationToken cancellationToken = cancellationTokenSource.Token;
string downloadId = download.Id;
string vodId = downloadParams.Video.Id;
string tempDir = Path.Combine(_preferencesService.CurrentPreferences.DownloadTempFolder, downloadId);
string ffmpegFile = _processingService.FFMPEGExe;
string concatFile = Path.Combine(tempDir, Path.GetFileNameWithoutExtension(downloadParams.FullPath) + ".ts");
string outputFile = downloadParams.FullPath;
bool disableConversion = downloadParams.DisableConversion;
bool cropStart = downloadParams.CropStart;
bool cropEnd = downloadParams.CropEnd;
TimeSpan cropStartTime = downloadParams.CropStartTime;
TimeSpan cropEndTime = downloadParams.CropEndTime;
TwitchVideoQuality quality = downloadParams.SelectedQuality;
Action <DownloadState> setDownloadState = download.SetDownloadState;
Action <string> log = download.AppendLog;
Action <string> setStatus = download.SetStatus;
Action <double> setProgress = download.SetProgress;
Action <bool> setIsIndeterminate = download.SetIsIndeterminate;
Task downloadVideoTask = new Task(() =>
{
setStatus("Initializing");
log("Download task has been started!");
WriteDownloadInfo(log, downloadParams, ffmpegFile, tempDir);
cancellationToken.ThrowIfCancellationRequested();
log(Environment.NewLine + Environment.NewLine + "Retrieving VOD access information...");
TwitchVideoAuthInfo vodAuthInfo = _apiService.GetVodAuthInfo(vodId);
log(" done!");
cancellationToken.ThrowIfCancellationRequested();
WriteVodAuthInfo(log, vodAuthInfo);
cancellationToken.ThrowIfCancellationRequested();
CheckTempDirectory(log, tempDir);
cancellationToken.ThrowIfCancellationRequested();
log(Environment.NewLine + Environment.NewLine + "Retrieving playlist information for all VOD qualities...");
Dictionary <TwitchVideoQuality, string> playlistInfo = _apiService.GetPlaylistInfo(vodId, vodAuthInfo);
log(" done!");
cancellationToken.ThrowIfCancellationRequested();
WritePlaylistInfo(log, playlistInfo);
cancellationToken.ThrowIfCancellationRequested();
TwitchPlaylist vodPlaylist = GetVodPlaylist(log, tempDir, playlistInfo, quality);
cancellationToken.ThrowIfCancellationRequested();
CropInfo cropInfo = CropVodPlaylist(vodPlaylist, cropStart, cropEnd, cropStartTime, cropEndTime);
cancellationToken.ThrowIfCancellationRequested();
DownloadParts(log, setStatus, setProgress, vodPlaylist, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
_processingService.ConcatParts(log, setStatus, setProgress, vodPlaylist, disableConversion ? outputFile : concatFile);
if (!disableConversion)
{
cancellationToken.ThrowIfCancellationRequested();
_processingService.ConvertVideo(log, setStatus, setProgress, setIsIndeterminate, concatFile, outputFile, cropInfo);
}
}, cancellationToken);
Task continueTask = downloadVideoTask.ContinueWith(task =>
{
log(Environment.NewLine + Environment.NewLine + "Starting temporary download folder cleanup!");
CleanUp(tempDir, log);
setProgress(100);
setIsIndeterminate(false);
bool success = false;
if (task.IsFaulted)
{
setDownloadState(DownloadState.Error);
log(Environment.NewLine + Environment.NewLine + "Download task ended with an error!");
if (task.Exception != null)
{
log(Environment.NewLine + Environment.NewLine + task.Exception.ToString());
}
}
else if (task.IsCanceled)
{
setDownloadState(DownloadState.Canceled);
log(Environment.NewLine + Environment.NewLine + "Download task was canceled!");
}
else
{
success = true;
setDownloadState(DownloadState.Done);
log(Environment.NewLine + Environment.NewLine + "Download task ended successfully!");
}
if (!_downloadTasks.TryRemove(downloadId, out DownloadTask downloadTask))
{
throw new ApplicationException("Could not remove download task with ID '" + downloadId + "' from download task collection!");
}
if (success && _preferencesService.CurrentPreferences.DownloadRemoveCompleted)
{
_eventAggregator.GetEvent <RemoveDownloadEvent>().Publish(downloadId);
}
});
if (_downloadTasks.TryAdd(downloadId, new DownloadTask(downloadVideoTask, continueTask, cancellationTokenSource)))
{
downloadVideoTask.Start();
setDownloadState(DownloadState.Downloading);
}
}
}
finally
{
Monitor.Exit(_changeDownloadLockObject);
}
}
}
