/// <summary>
/// Send Audio to last destionation (user)
/// </summary>
/// <param name="streamInfo">audio file</param>
/// <param name="video">need for get some information about song.</param>
/// <returns></returns>
public async Task SendAudio(IAudioStreamInfo streamInfo, YoutubeExplode.Videos.Video video)
{
using (var audioStream = await _youtubeClient.Videos.Streams.GetAsync(streamInfo))
{
await _telegramBotClient.SendAudioAsync(
chatId : ChatId,
audio : audioStream,
caption : video.Url,
duration : (int)video.Duration.TotalSeconds,
performer : video.Author,
title : video.Title);
}
}
/// <summary>
/// Get Audio Stream
/// </summary>
/// <param name="streamManifest">manifest bases on video bitray/quality</param>
/// <param name="messageText">text which user input, need for exception</param>
/// <returns></returns>
private async Task <IAudioStreamInfo> GetAudioStreamInfo(StreamManifest streamManifest, string messageText)
{
IAudioStreamInfo streamInfo = (IAudioStreamInfo)streamManifest
.GetAudioOnly()
.WithHighestBitrate();
if (streamInfo == null || streamInfo.Size.TotalMegaBytes > 50)
{
var failMessage = streamManifest.GetAudioOnly().Any() ? ValidationMessages.FileSizeExceedLimitMessage : ValidationMessages.Mp4DoesNotExistsMessage;
await SendTextMessage(failMessage);
_logger.LogInformation($"Stream info for {messageText} was empty and error for user is {failMessage}");
return(null);
}
return(streamInfo);
}
public async Task DownloadTrack(MusixSongResult Track, string OutputDirectory, AudioEffectStack Effects = null, CancellationToken cancellationToken = default)
{
int Steps;
int Step = 0;
if (Effects == null)
{
Steps = 9;
}
else
{
Steps = 9 + Effects.EffectCount;
}
TryCallback(Step, Steps, "Starting Download", Track);
if (cancellationToken.IsCancellationRequested)
{
return;
}
bool HasEffects = Effects != null;
if (HasEffects)
{
Console.WriteLine("Has Effects");
if (string.IsNullOrEmpty(Effects.AudioCachePath))
{
Effects.AudioCachePath = AudioCache;
}
}
// Step 1
Step++;
TryCallback(Step, Steps, "Preparing Download", Track);
Console.WriteLine("Start Download");
if (!Track.HasVideo)
{
Console.WriteLine("No Vid");
}
if (!Track.HasVideo)
{
return;
}
string SourceAudio = Path.Combine(AudioCache, $"audio_source_{DateTime.Now.Ticks}");
string AlbumCover = Path.Combine(ImageCachePath, $"cover_{DateTime.Now.Ticks}.jpg");
string OutputFile = Path.Combine(OutputDirectory, FileHelpers.ScrubFileName($"{Track.SpotifyTrack.Artists[0].Name} - {Track.SpotifyTrack.Name.Replace("?", "").Trim(' ')}.mp3"));
string MidConversionFile = Path.Combine(AudioCache, FileHelpers.ScrubFileName($"MidConversion_{DateTime.Now.Ticks}.mp3"));
// Step 2
Step++;
TryCallback(Step, Steps, "Aquiring streams", Track);
StreamManifest StreamData = await YouTube.Videos.Streams.GetManifestAsync(Track.YoutubeVideo.Id);
if (cancellationToken.IsCancellationRequested)
{
return;
}
// Step 3
Step++;
TryCallback(Step, Steps, "Sorting Streams", Track);
List <AudioOnlyStreamInfo> AudioStreams = StreamData.GetAudioOnlyStreams().ToList();
AudioStreams.OrderBy(dat => dat.Bitrate);
if (AudioStreams.Count() == 0)
{
Console.WriteLine("No Streams");
}
if (AudioStreams.Count() == 0)
{
return;
}
IAudioStreamInfo SelectedStream = AudioStreams[0];
// Step 4
Step++;
TryCallback(Step, Steps, "Starting downloads", Track);
if (cancellationToken.IsCancellationRequested)
{
return;
}
//Task AudioDownloadTask = new Task(async () => await YouTube.Videos.Streams.DownloadAsync(SelectedStream, SourceAudio));
var req = WebRequest.CreateHttp(SelectedStream.Url);
req.Method = "GET";
using (var resp = req.GetResponse())
using (var network = resp.GetResponseStream())
using (var fs = new FileStream(SourceAudio, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
Console.WriteLine("Downloading");
await network.CopyToAsync(fs);
Console.WriteLine("flushing");
await fs.FlushAsync();
Console.WriteLine("done");
}
WebClient WebCl = new WebClient();
Step++;
TryCallback(Step, Steps, "Starting", Track);
SpotifyImage Cover = Track.SpotifyTrack.Album.Images[0];
var CoverDownloadTask = new Task(() =>
{
Console.WriteLine("Downloading Cover");
WebCl.DownloadFile(new Uri(Cover.Url), AlbumCover);
}
);
CoverDownloadTask.Start();
Step++;
TryCallback(Step, Steps, "Waiting for downloads", Track);
if (cancellationToken.IsCancellationRequested)
{
return;
}
//if (!AudioDownloadTask.IsCompleted)
//{
// Console.WriteLine("Waiting on artwork...");
// CoverDownloadTask.Wait();
//}
if (cancellationToken.IsCancellationRequested)
{
return;
}
//if (!AudioDownloadTask.IsCompleted)
//{
// Console.WriteLine("Waiting on audio...");
// AudioDownloadTask.Wait();
// Console.WriteLine("Download Complete.");
//}
Thread.Sleep(100);
if (cancellationToken.IsCancellationRequested)
{
return;
}
string ConversionFile = OutputFile;
if (HasEffects)
{
ConversionFile = MidConversionFile;
}
if (File.Exists(OutputFile))
{
File.Delete(OutputFile);
}
if (File.Exists(ConversionFile))
{
File.Delete(ConversionFile);
}
Step++;
TryCallback(Step, Steps, "Transcoding audio to mp3", Track);
// Step 8
Console.WriteLine("Starting Conversion...");
await ConversionsProvider.Convert(SourceAudio, ConversionFile);
Console.WriteLine("Conversion Complete.");
// Step 9
if (cancellationToken.IsCancellationRequested)
{
return;
}
if (HasEffects)
{
Step++;
int InternalStep = Step;
TryCallback(Step, Steps, "Applying audio effects", Track);
Effects.ApplyEffects(ConversionFile, OutputFile, (step, stepmax, status, download) =>
{
step++;
TryCallback(Step, Steps, status, Track);
}, cancellationToken);
}
if (cancellationToken.IsCancellationRequested)
{
return;
}
Step++;
TryCallback(Step, Steps, "Applying ID3 metadata tags", Track);
// Step 10
TagLib.Id3v2.Tag.DefaultVersion = 3;
TagLib.Id3v2.Tag.ForceDefaultVersion = true;
TagLibFile TLF = TagLibFile.Create(OutputFile);
TagLibPicture Pic = new TagLibPicture(AlbumCover);
TagLib.Id3v2.AttachedPictureFrame Frame = new TagLib.Id3v2.AttachedPictureFrame(Pic)
{
MimeType = System.Net.Mime.MediaTypeNames.Image.Jpeg
};
Pic.Type = TagLib.PictureType.FrontCover;
TagLib.IPicture[] Pics = { Pic };
TLF.Tag.Pictures = Pics;
TLF.Tag.Title = Track.SpotifyTrack.Name.Split('-')[0].Trim(' ');
TLF.Tag.Album = Track.SpotifyTrack.Album.Name;
TLF.Tag.AlbumArtists = Track.SpotifyTrack.Album.Artists.CastEnumerable(x => x.Name).ToArray();
TLF.Tag.Disc = (uint)Track.SpotifyTrack.DiscNumber;
TLF.Tag.AlbumSort = Track.SpotifyTrack.Album.AlbumType;
DateTime?DT = GetDate(Track.SpotifyTrack.Album.ReleaseDate);
if (DT.HasValue)
{
TLF.Tag.Year = (uint)DT.Value.Year;
}
if (cancellationToken.IsCancellationRequested)
{
return;
}
TLF.Save();
// Clean Up
// Step 11
Step++;
TryCallback(Step, Steps, "Cleaning up", Track);
WebCl.Dispose();
TLF.Dispose();
Console.WriteLine("Done.");
OnMusixDownloadComplete?.Invoke(Track);
}
public VideoDownloadInfo(IVideoStreamInfo video, IAudioStreamInfo audio)
{
Video = video;
Audio = audio;
}
private async Task DownloadMuxedFromStreamsAsync(IVideoStreamInfo videoStreamInfo, IAudioStreamInfo audioStreamInfo, string file)
{
var videoStream = await client.Videos.Streams.GetAsync(videoStreamInfo);
var audioStream = await client.Videos.Streams.GetAsync(audioStreamInfo);
var videoPipeName = "ffvideopipe";
var audioPipeName = "ffaudiopipe";
var args = $@"-y -i \\.\pipe\{videoPipeName} -i \\.\pipe\{audioPipeName} -c copy -map 0:v:0 -map 1:a:0 {file}.{videoStreamInfo.Container.Name}";
var videoPipe = new NamedPipeServerStream(videoPipeName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous, 10000, 10000);
var audioPipe = new NamedPipeServerStream(audioPipeName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous, 10000, 10000);
var process = new Process
{
StartInfo =
{
FileName = "ffmpeg",
Arguments = args,
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardInput = true
}
};
process.Start();
videoPipe.WaitForConnection();
var videoCopy = videoStream.CopyToAsync(videoPipe);
audioPipe.WaitForConnection();
var audioCopy = audioStream.CopyToAsync(audioPipe);
Task.WaitAll(videoCopy, audioCopy);
videoPipe.Flush();
audioPipe.Flush();
videoPipe.Dispose();
audioPipe.Dispose();
process.WaitForExit();
}
