Nadeko will now join invites in PM, new music code

Music does not work atm.

Thx to @Bloodskilled for the new code, just need to clean it up a bit
more
This commit is contained in:
Kwoth 2016-01-15 20:54:57 +01:00
parent ce24c6e783
commit 168f553807
2 changed files with 401 additions and 101 deletions

View File

@ -1,4 +1,6 @@
using System;
// Thanks to @Bloodskilled for providing most of the music code from his BooBot
// check out his server https://discord.gg/0aMlLYi2e2V7h2Kr
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
@ -14,6 +16,7 @@ using System.Threading;
using System.Diagnostics;
using Discord.Legacy;
using System.Net;
using System.Globalization;
namespace NadekoBot.Modules {
class Music : DiscordModule {
@ -203,134 +206,427 @@ namespace NadekoBot.Modules {
}
}
//new stuff
class AudioStreamer {
string sourceUrl; Channel statusTextChannel;
int totalSourceBytes;
public bool NetworkDone { get; private set; }
public int BytesSentToTranscoder { get; private set; }
public Stream PCMOutput { get; private set; }
CancellationTokenSource tokenSource1 = new CancellationTokenSource();
CancellationTokenSource tokenSource2 = new CancellationTokenSource();
Task transcoderTask; Task outputTask;
public AudioStreamer(string streamUrl, Channel statusTextChannel = null) {
sourceUrl = streamUrl;
this.statusTextChannel = statusTextChannel;
}
public void Start() {
Task.Run(async () => {
var bufferingStream = GetBufferingStream(sourceUrl);
Console.WriteLine("Buffering video..."); // Wait for some data to arrive
while (bufferingStream.Length < 1000 || NetworkDone)
await Task.Delay(500);
Console.WriteLine("buf done");
Stream input, pcmOutput;
var ffmpegProcess = GetTranscoderStreams(out input, out pcmOutput);
PCMOutput = new DualStream(); // Keep pumping network stuff into the transcoder
transcoderTask = Task.Run(() => TranscoderFunc(bufferingStream, input, tokenSource1.Token));
// Keep pumping transcoder output into the PCMOutput stream
outputTask = Task.Run(() => OutputFunc(pcmOutput, PCMOutput, tokenSource2.Token));
// Wait until network stuff is all done
while (!NetworkDone) await Task.Delay(500);
// Then wait until we sent everything to the transcoder
while (BytesSentToTranscoder < totalSourceBytes) await Task.Delay(500);
// Then wait some more until it did everything and kill it
await Task.Delay(5000);
enum StreamTaskState {
Queued,
Playing,
Completed
}
class StreamRequest {
static readonly string[] validFormats = { ".ogg", ".wav", ".mp3", ".webm", ".aac", ".mp4", ".flac" };
readonly DiscordClient client;
public readonly Server Server;
public readonly Channel Channel;
public Channel VoiceChannel;
public readonly User User;
public readonly string RequestText;
const string DefaultTitle = "<??>";
public string Title = DefaultTitle;
public TimeSpan Length = TimeSpan.FromSeconds(0);
public string FileName;
bool linkResolved;
public string StreamUrl;
public bool NetworkDone;
public long TotalSourceBytes;
Stream bufferingStream;
StreamTask streamTask;
public StreamTaskState State => streamTask?.State ?? StreamTaskState.Queued;
public StreamRequest(DiscordClient client, MessageEventArgs e, string text) {
this.client = client;
Server = e.Server;
Channel = e.Channel;
User = e.User;
RequestText = text.Trim();
FileName = "unresolved_" + Uri.EscapeUriString(RequestText);
Task.Run(() => {
try {
tokenSource1.Cancel();
tokenSource2.Cancel();
Console.WriteLine("Killing transcoder...");
ffmpegProcess.Kill();
} catch { }
ResolveLink();
} catch (Exception ex) {
Console.WriteLine("Exception in ResolveLink: " + ex);
}
});
}
async Task TranscoderFunc(Stream sourceStream, Stream targetStream, CancellationToken cancellationToken) {
byte[] buffer = new byte[0x4000];
while (!NetworkDone && !cancellationToken.IsCancellationRequested) {
// When there is new stuff available on the network we want to get it instantly
int available = totalSourceBytes - BytesSentToTranscoder;
if (available > 0) {
int read = await sourceStream.ReadAsync(buffer, 0, Math.Min(available, buffer.Length), cancellationToken);
if (read > 0) { targetStream.Write(buffer, 0, read);
BytesSentToTranscoder += read;
void ResolveLink() {
var url = RequestText;
if (url.IndexOf("soundcloud", StringComparison.OrdinalIgnoreCase) != -1) {
var track = Services.SoundcloudService.GetTrackStreamUrl(url, out Title, out StreamUrl);
Length = TimeSpan.FromMilliseconds(track.Duration);
Title = track.Title;
FileName = Uri.EscapeUriString(Title) + ".mp3";
StartBuffering();
linkResolved = true;
} else if (url.IndexOf("youtube", StringComparison.OrdinalIgnoreCase) != -1 || url.IndexOf("youtu.be", StringComparison.OrdinalIgnoreCase) != -1) {
try {
var infos = DownloadUrlResolver
.GetDownloadUrls(url.Trim())
.Where(i => i.AudioType != AudioType.Unknown)
.ToArray();
if (infos.Length == 0)
throw new Exception("Could not load any video elements");
var info = infos
.GroupBy(x => x.AudioBitrate) // Create groups for audio bitrates
.OrderByDescending(x => x.Key) // Group with max bitrate first
.Take(1) // Only take one group
.SelectMany(x => x) // Unpack group container again
.OrderBy(x => x.Resolution) // take vid with smallest resolution
.First(); // First one
StreamUrl = info.DownloadUrl;
Title = info.Title;
FileName = Uri.EscapeUriString(Title) + ".mp4";
StartBuffering();
linkResolved = true;
} catch (Exception) {
// Send a message to the guy that queued that
Channel.SendMessage(":warning: " + User.Mention + " Cannot load youtube url: `This video is not available in your country` or the url is corrupted somehow...");
Console.WriteLine("Cannot parse youtube url: " + url);
Cancel();
}
} else {
// Is it a direct link oO ??
var format = validFormats.FirstOrDefault(f => url.EndsWith(f));
if (format == null) {
Console.WriteLine("Direct link: \"" + url + "\" does not end with a valid extension");
return;
}
StreamUrl = url;
Title = url;
StartBuffering();
linkResolved = true;
}
}
internal void StartBuffering() {
var folder = "StreamBuffers";
Directory.CreateDirectory(folder);
var fullPath = Path.Combine(folder, FileName);
FileStream fileStream;
FileStream readStream;
try {
if (File.Exists(fullPath) && new FileInfo(fullPath).Length > 1024 * 2) {
NetworkDone = true;
TotalSourceBytes = new FileInfo(fullPath).Length;
bufferingStream = new FileStream(fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
if (Length.TotalSeconds < double.Epsilon)
Length = GetFileLength(fullPath);
return;
}
// Open a new file to stream into
fileStream = new FileStream(fullPath, FileMode.Create, FileAccess.Write, FileShare.Read);
bufferingStream = new FileStream(fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
} catch (Exception ex) {
Console.WriteLine("Exception while creating or opening stream buffers: " + ex);
return;
}
Task.Run(() => {
AutoResetDelay fileLengthCheckDelay = new AutoResetDelay(500);
int byteCounter = 0;
bool fileLengthDetermined = false;
try {
var webClient = new WebClient();
var networkStream = webClient.OpenRead(StreamUrl);
if (networkStream == null)
return;
byte[] buffer = new byte[0x1000];
while (true) {
int read = networkStream.Read(buffer, 0, buffer.Length);
if (read <= 0)
break;
byteCounter += read;
TotalSourceBytes += read;
fileStream.Write(buffer, 0, read);
if (TotalSourceBytes > 1024 * 2 && Length.TotalSeconds < 0.1 && fileLengthCheckDelay.IsReady) {
Length = GetFileLength(fullPath);
}
}
} catch (Exception ex) {
Console.WriteLine("Exception while buffering (network->file): " + ex);
}
fileStream.Close();
NetworkDone = true;
Console.WriteLine("net: done. ({0} read)", byteCounter);
});
}
internal void Start() {
if (State != StreamTaskState.Queued)
return;
Stopwatch resolveTimer = Stopwatch.StartNew();
if (!linkResolved || bufferingStream == null)
Channel.SendMessage($":musical_note: Resolving link...\r\n:warning: `Keep in mind that other people can 'steal' the bot by just starting a stream command in their own server...`\r\n");
while (resolveTimer.ElapsedMilliseconds < 8000) {
if (bufferingStream != null)
break;
Thread.Sleep(50);
}
if (bufferingStream == null) {
Console.WriteLine("Buffering stream was not set! Can't play track!");
streamTask = new StreamTask(client, this, null);
streamTask.CancelStreaming();
return;
}
streamTask = new StreamTask(client, this, bufferingStream);
VoiceChannel = GetVoiceChannelForUser(User);
if (VoiceChannel == null) {
Channel.SendMessage($":warning: {User.Mention} `I can't find you in any voice channel. Join one, then try again...`");
streamTask.CancelStreaming(); // just to set the state to done
return;
}
// Go!
streamTask.StartStreaming();
}
internal void Cancel() {
if (State == StreamTaskState.Completed)
return;
if (streamTask == null)
streamTask = new StreamTask(client, this, bufferingStream);
streamTask.CancelStreaming();
}
Channel GetVoiceChannelForUser(User user) {
return client.Servers.SelectMany(s => s.VoiceChannels).FirstOrDefault(c => c.Users.Any(u => u.Id == user.Id));
}
public string GetFormattedTitle() {
if (Length.TotalSeconds < double.Epsilon)
Length = GetFileLength(FileName);
if (Title != DefaultTitle)
return $"**{Title.Replace('*', '°')}** *({Length.ToString()})*";
// put into <> when it contains a domain
if (StreamUrl == null)
return "<" + RequestText + ">";
if (StreamUrl.Contains("http:") || StreamUrl.Contains("https:"))
return "<" + StreamUrl.Trim() + ">";
return StreamUrl;
}
public static TimeSpan GetFileLength(string fileName) {
try {
var startInfo = new ProcessStartInfo("ffprobe", $"-i \"{fileName}\" -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1");
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = false;
using (var process = Process.Start(startInfo)) {
var lengthLine = process.StandardOutput.ReadLine();
double result;
if (double.TryParse(lengthLine, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out result)) {
int integerPart = (int)Math.Round(result);
return TimeSpan.FromSeconds(integerPart);
} else
return TimeSpan.Zero;
}
} catch (Exception) {
Console.WriteLine("Exception while determining file play-time");
return TimeSpan.Zero;
}
}
}
class TranscodingTask {
readonly StreamRequest streamRequest;
readonly Stream bufferingStream;
public long BytesSentToTranscoder { get; private set; }
public DualStream PCMOutput { get; private set; }
public long ReadyBytesLeft => PCMOutput?.writePos - PCMOutput?.readPos ?? 0;
readonly CancellationTokenSource tokenSource = new CancellationTokenSource();
Task transcoderTask;
Task outputTask;
public TranscodingTask(StreamRequest streamRequest, Stream bufferingStream) {
this.streamRequest = streamRequest;
this.bufferingStream = bufferingStream;
}
public void Start() {
Task.Run(async () => {
// Wait for some data to arrive
while (true) {
if (streamRequest.NetworkDone)
break;
if (bufferingStream.Length > 1024 * 3)
break;
await Task.Delay(100);
}
Stream input, pcmOutput;
var ffmpegProcess = GetTranscoderStreams(out input, out pcmOutput);
PCMOutput = new DualStream();
// Keep pumping network stuff into the transcoder
transcoderTask = Task.Run(() => TranscoderFunc(bufferingStream, input, tokenSource.Token), tokenSource.Token);
// Keep pumping transcoder output into the PCMOutput stream
outputTask = Task.Run(() => OutputFunc(pcmOutput, PCMOutput, tokenSource.Token), tokenSource.Token);
// Wait until network stuff is all done
while (!streamRequest.NetworkDone)
await Task.Delay(200);
// Then wait until we sent everything to the transcoder
while (BytesSentToTranscoder < streamRequest.TotalSourceBytes)
await Task.Delay(200);
// Then wait some more until it did everything and kill it
await Task.Delay(5000);
try {
tokenSource.Cancel();
bufferingStream.Close();
Console.WriteLine("Killing transcoder...");
ffmpegProcess.Kill();
} catch {
}
});
}
async Task TranscoderFunc(Stream sourceStream, Stream transcoderInput, CancellationToken cancellationToken) {
try {
byte[] buffer = new byte[1024];
while (true) {
if (cancellationToken.IsCancellationRequested)
break;
if (BytesSentToTranscoder >= streamRequest.TotalSourceBytes)
break;
// When there is new stuff available on the network we want to get it instantly
long available = streamRequest.TotalSourceBytes - BytesSentToTranscoder;
double availableRingSpace = PCMOutput.Length / (double)PCMOutput.Capacity;
// How much data is in the final output buffer?
// We dont want to transcode too much in advance
if (available > 0 && availableRingSpace < 1) {
int read = await sourceStream.ReadAsync(buffer, 0, (int)Math.Min(available, buffer.LongLength), cancellationToken);
if (read > 0) {
// Write to transcoder
transcoderInput.Write(buffer, 0, read);
BytesSentToTranscoder += read;
}
} else {
// We have enough data transcoded already. Stall a bit so we dont do too much!
await Task.Delay(100);
}
}
else await Task.Delay(1);
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
Console.WriteLine("TranscoderFunc stopped");
}
async Task OutputFunc(Stream sourceStream, Stream targetStream, CancellationToken cancellationToken) {
byte[] buffer = new byte[0x4000];
while (!cancellationToken.IsCancellationRequested) {
// When there is new stuff available on the network we want to get it instantly
int read = await sourceStream.ReadAsync(buffer, 0, buffer.Length, cancellationToken);
if (read > 0) targetStream.Write(buffer, 0, read);
static async Task OutputFunc(Stream sourceStream, DualStream targetBuffer, CancellationToken cancellationToken) {
try {
byte[] buffer = new byte[1024];
while (!cancellationToken.IsCancellationRequested) {
// When there is new stuff available on the network we want to get it instantly
int read = await sourceStream.ReadAsync(buffer, 0, buffer.Length, cancellationToken);
if (read > 0) {
targetBuffer.Write(buffer, 0, read);
}
}
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
Console.WriteLine("OutputFunc stopped");
}
internal static Process GetTranscoderStreams(out Stream input, out Stream pcmOutput) {
Process p = Process.Start(new ProcessStartInfo {
FileName = "ffmpeg",
Arguments = "-i pipe:0 -f s16le -ar 48000 -ac 2 pipe:1",
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardInput = true,
CreateNoWindow = true,
});
Process p = null;
Exception ex = null;
try {
p = Process.Start(new ProcessStartInfo {
FileName = "ffmpeg",
Arguments = "-i pipe:0 -f s16le -ar 48000 -ac 2 pipe:1",
UseShellExecute = false,
RedirectStandardError = false,
RedirectStandardOutput = true,
RedirectStandardInput = true,
CreateNoWindow = true,
});
} catch (Exception exInner) {
ex = exInner;
}
if (p == null || ex != null) {
input = null;
pcmOutput = null;
Console.WriteLine("Could not start ffmpeg: " + (ex?.Message ?? "<no exception>"));
return null;
}
pcmOutput = p.StandardOutput.BaseStream;
input = p.StandardInput.BaseStream;
return p;
}
Stream GetBufferingStream(string streamUrl) {
var memoryStream = new DualStream();
Task.Run(() => {
int byteCounter = 0;
try {
var webClient = new WebClient();
var networkStream = webClient.OpenRead(streamUrl);
if (networkStream == null) return;
byte[] buffer = new byte[0x1000];
while (true) {
int read = networkStream.Read(buffer, 0, buffer.Length);
if (read <= 0) break;
byteCounter += read;
totalSourceBytes += read;
memoryStream.Write(buffer, 0, read);
}
} catch (Exception ex) {
Console.WriteLine("Exception while reading network stream: " + ex);
}
NetworkDone = true; Console.WriteLine("net: done. ({0} read)", byteCounter);
});
return memoryStream;
}
async void Write(string message) {
Console.WriteLine(message);
}
public void Cancel() {
tokenSource1.Cancel();
tokenSource2.Cancel();
NetworkDone = true;
BytesSentToTranscoder = totalSourceBytes;
tokenSource.Cancel();
BytesSentToTranscoder = streamRequest.TotalSourceBytes;
}
}
public class DualStream : MemoryStream {
long readPosition;
long writePosition;
public long readPos;
public long writePos;
public override int Read(byte[] buffer, int offset, int count) {
int read;
lock (this) {
Position = readPosition;
Position = readPos;
read = base.Read(buffer, offset, count);
readPosition = Position;
readPos = Position;
}
return read;
}
public override void Write(byte[] buffer, int offset, int count) {
lock (this) {
Position = writePosition;
Position = writePos;
base.Write(buffer, offset, count);
writePosition = Position;
writePos = Position;
}
}
}

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@ -99,8 +99,12 @@ namespace NadekoBot
static bool repliedRecently = false;
private static async void Client_MessageReceived(object sender, MessageEventArgs e) {
if (e.Server != null) return;
try {
(await client.GetInvite(e.Message.Text))?.Accept();
} catch (Exception) { }
if (repliedRecently = !repliedRecently) {
await e.Send("You can type `-h` or `-help` or `@MyName help` in any of the channels I am in and I will send you a message with my commands.\n Or you can find out what i do here: https://github.com/Kwoth/NadekoBot\nIf you don't want me on your server, you can simply ban me ;(");
await e.Send("You can type `-h` or `-help` or `@MyName help` in any of the channels I am in and I will send you a message with my commands.\n Or you can find out what i do here: https://github.com/Kwoth/NadekoBot\nYou can also just send me an invite link to a server and I will join it.\nIf you don't want me on your server, you can simply ban me ;(");
Timer t = new Timer();
t.Interval = 2000;
t.Start();