i create vlc playlist xspf file now i want to stream it with Libvlcsharp codes as follows.
this code working fine with video file but .xspf file not respond
code :
LibVLCSharp.Shared.LibVLC _libVLC;
MediaPlayer _mp;
_libVLC = new LibVLCSharp.Shared.LibVLC("-I", "null");
_mp = new MediaPlayer(_libVLC);
string xspf_file = #"D:\sample.xspf";
var media1 = new Media(_libVLC,xspf_file,FromType.FromPath);
media1.AddOption(":sout=#transcode{acodec=mp4a,ab=128,channels=2,samplerate=44100,scodec=none}:udp{dst=224.2.2.26:2226,mux=ts}");
_mp.Play(media1);
MessageBox.Show("play success");
Core.Initialize();
using(var libVLC = new LibVLC())
{
var media = new Media(libVLC, "playlist.xspf");
await media.Parse(MediaParseOptions.ParseNetwork);
using (var mp = new MediaPlayer(media.SubItems.First()))
{
media.Dispose();
mp.Play();
Console.ReadKey();
}
}
Related
I want to play multiple Audio files simultaneously on iOS .
On the click of a button I create multiple instance of an Audio file and put them into an array.
let audio = new Audio('path.wav')
audio.play().then(() => {
audio.pause();
possibleAudiosToPlay.push(audio);
});
After a while I play them all:
possibleAudiosToPlay.forEach(el => {
el.currentTime = 0;
el.play();
});
While this plays all audio files: When a new one begins it stops the old one. (on iOS)
Apples developer guide says this isn't possible at all with HTML5 Audio:
Playing multiple simultaneous audio streams is also not supported.
But can this be achieved with the Web Audio API?
There isn't anything written about it in Apples developer guide.
Yes you can with Web Audio API. You have to create an AudioBufferSourceNode for each one of your audio sources, since each source can be played only once (you can't stop it and play it again).
const AudioContext = window.AudioContext || window.webkitAudioContext;
const ctx = new AudioContext();
const audioPaths = [
"path/to/audio_file1.wav",
"path/to/audio_file2.wav",
"path/to/audio_file3.wav"
];
let promises = [];
// utility function to load an audio file and resolve it as a decoded audio buffer
function getBuffer(url, audioCtx) {
return new Promise((resolve, reject) => {
if (!url) {
reject("Missing url!");
return;
}
if (!audioCtx) {
reject("Missing audio context!");
return;
}
let xhr = new XMLHttpRequest();
xhr.open("GET", url);
xhr.responseType = "arraybuffer";
xhr.onload = function() {
let arrayBuffer = xhr.response;
audioCtx.decodeAudioData(arrayBuffer, decodedBuffer => {
resolve(decodedBuffer);
});
};
xhr.onerror = function() {
reject("An error occurred.");
};
xhr.send();
});
}
audioPaths.forEach(p => {
promises.push(getBuffer(p, ctx));
});
// Once all your sounds are loaded, create an AudioBufferSource for each one and start sound
Promise.all(promises).then(buffers => {
buffers.forEach(b => {
let source = ctx.createBufferSource();
source.buffer = b;
source.connect(ctx.destination);
source.start();
})
});
I am using Microsoft Graph SDK to upload file in chunks in OneDrive. I am using below code to upload the file:
try
{
GraphServiceClient graphClient = this.GetGraphServiceClient(accessToken);
string fileName = Path.GetFileName(srcFilePath);
using (var fileContentStream = System.IO.File.Open(srcFilePath, System.IO.FileMode.Open))
{
var uploadSession = await graphClient.Me.Drive.Root.ItemWithPath(fileName).CreateUploadSession().Request().PostAsync();
var maxChunkSize = 5 * 1024 * 1024;
var provider = new ChunkedUploadProvider(uploadSession, graphClient, fileContentStream, maxChunkSize);
var chunkRequests = provider.GetUploadChunkRequests();
var readBuffer = new byte[maxChunkSize];
var trackedExceptions = new List<Exception>();
Microsoft.Graph.DriveItem itemResult = null;
foreach (var request in chunkRequests)
{
var result = await provider.GetChunkRequestResponseAsync(request, readBuffer, trackedExceptions);
if (result.UploadSucceeded)
{
itemResult = result.ItemResponse;
}
}
}
}
catch (Microsoft.Graph.ServiceException e)
{
}
catch (Exception ex)
{
}
The above code works fine with normal file names. However, when I am trying to upload a file with name as Test#123.pdf, "Object reference not set to an object" exception is thrown at line var provider = new ChunkedUploadProvider(uploadSession, graphClient, fileContentStream, maxChunkSize); Please see below screenshot:
Is this a limitation of OneDrive SDK, or am I not passing the parameters correctly?
The # sign has a special meaning in a URL. Before you can use it, you'll need to URL Encode the file name: Test%23123.pdf.
I am new to Xamarin iOS, i need to download multiple videos at same time. how should i achieve this ? is there any class which can help me download similar to the DownloadManager in Android.
You can try this approaches
public void getData(List<String> urls) {
// define the HttpClient
var handler = new HttpClientHandler { AllowAutoRedirect=false };
var client = new HttpClient(handler);
// define file path
var path=Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
// start download
System.Threading.Tasks.Parallel.ForEach(urls, async (url) => {
var uri = new Uri(url);
var fileName = System.IO.Path.GetFileName(uri.LocalPath);
// download the file
var data = await client.GetByteArrayAsync(uri);
// save file on disk
System.IO.File.WriteAllBytes(System.IO.Path.Combine(path, fileName), data);
});
}
I am trying to create a table containing audio files, which should start playing when the user clicks the play button. This is what I've tried so far:
Controller:
[HttpGet]
public ActionResult PlayFile(string FilePath)
{
WebClient WC = new WebClient();
WC.Credentials = new System.Net.NetworkCredential("username", "password");
byte[] buff = WC.DownloadData(FilePath);
var SplitFileName = FilePath.Split('\\');
string FileName = "Recording_" + SplitFileName[SplitFileName.Count() - 1];
Response.AddHeader("Content-Disposition", "inline; filename=" + FileName);
MemoryStream stream = new MemoryStream(buff);
return new FileStreamResult(stream, "audio/wav");
//I have also tried:
//return File(buff, "audio/wav");
}
The audio tags look like this:
<td>
<audio controls preload='none'>
<source src='/Components/PlayFile?FilePath=[filename.wav]' type='audio/wav'>
</audio>
</td>
When running the site locally in Chrome, all the files have the length 0:00, and you can click the play button once but the file is not played. After the play button has been clicked once it is not possible to click it again. It is however possible to download the file
and play it. When running the site locally in Firefox, the files also have the length 0:00, and when you click the play button the control disappears. It is also possible to download the file in Firefox. Does anyone know what could be causing this?
The problem was that the audio files were in GSM format and needed to be converted to PCM. This code works:
[HttpGet]
public ActionResult PlayFile(string FilePath)
{
WebClient WC = new WebClient();
WC.Credentials = new System.Net.NetworkCredential("username", "password");
byte[] buff = WC.DownloadData(FilePath);
var SplitFileName = FilePath.Split('\\');
string FileName = "Recording_" + SplitFileName[SplitFileName.Count() - 1];
MemoryStream ms = new MemoryStream();
ms.Write(buff, 0, buff.Length);
ms.Seek(0, SeekOrigin.Begin);
MemoryStream outputStream = new MemoryStream();
using (NAudio.Wave.WaveFileReader reader = new WaveFileReader(ms))
using (NAudio.Wave.WaveStream waveStream = NAudio.Wave.WaveFormatConversionStream.CreatePcmStream(reader))
using (NAudio.Wave.WaveFileWriter waveFileWriter = new WaveFileWriter(outputStream, waveStream.WaveFormat))
{
byte[] bytes = new byte[waveStream.Length];
waveStream.Position = 0;
waveStream.Read(bytes, 0, (int)waveStream.Length);
waveFileWriter.Write(bytes, 0, bytes.Length);
waveFileWriter.Flush();
}
return File(outputStream.ToArray(), "audio/wav");
}
Can you try with below as its working for me.
public FileResult PlayFile(string FilePath)
{
return new FilePathResult(FilePath, "audio/wav");
}
Also, try changing "audio/wav" to "audio/mp3", if it helps.
I have an asp.net MVC application, below code works file.
But the code is that, When navigate to Email action in browser, an EML file is download, then when we click on that file, the file will open with outlook.
Can it be possible, when action calls, then EML file will directly open with outlook, instead of download and then click to open??
Code
public async Task<FileStreamResult> Email()
{
string dummyEmail = "test#localhost.com";
var mailMessage = new MailMessage();
mailMessage.From = new MailAddress(dummyEmail);
mailMessage.To.Add("dejan.caric#gmail.com");
mailMessage.Subject = "Test subject";
mailMessage.Body = "Test body";
// mark as draft
mailMessage.Headers.Add("X-Unsent", "1");
// download image and save it as attachment
using (var httpClient = new HttpClient())
{
var imageStream = await httpClient.GetStreamAsync(new Uri("http://dcaric.com/favicon.ico"));
mailMessage.Attachments.Add(new Attachment(imageStream, "favicon.ico"));
}
var stream = new MemoryStream();
ToEmlStream(mailMessage, stream, dummyEmail);
stream.Position = 0;
return File(stream, "message/rfc822", "test_email.eml");
}
private void ToEmlStream(MailMessage msg, Stream str, string dummyEmail)
{
using (var client = new SmtpClient())
{
var id = Guid.NewGuid();
var tempFolder = Path.Combine(Path.GetTempPath(), Assembly.GetExecutingAssembly().GetName().Name);
tempFolder = Path.Combine(tempFolder, "MailMessageToEMLTemp");
// create a temp folder to hold just this .eml file so that we can find it easily.
tempFolder = Path.Combine(tempFolder, id.ToString());
if (!Directory.Exists(tempFolder))
{
Directory.CreateDirectory(tempFolder);
}
client.UseDefaultCredentials = true;
client.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory;
client.PickupDirectoryLocation = tempFolder;
client.Send(msg);
// tempFolder should contain 1 eml file
var filePath = Directory.GetFiles(tempFolder).Single();
// create new file and remove all lines that start with 'X-Sender:' or 'From:'
string newFile = Path.Combine(tempFolder, "modified.eml");
using (var sr = new StreamReader(filePath))
{
using (var sw = new StreamWriter(newFile))
{
string line;
while ((line = sr.ReadLine()) != null)
{
if (!line.StartsWith("X-Sender:") &&
!line.StartsWith("From:") &&
// dummy email which is used if receiver address is empty
!line.StartsWith("X-Receiver: " + dummyEmail) &&
// dummy email which is used if receiver address is empty
!line.StartsWith("To: " + dummyEmail))
{
sw.WriteLine(line);
}
}
}
}
// stream out the contents
using (var fs = new FileStream(newFile, FileMode.Open))
{
fs.CopyTo(str);
}
}
}
With Chrome you can make it automatically open certain files, once they are downloaded.
.EML should attempt to open in Outlook.
I am not sure about other browsers, but Chrome seemed to be the only one with this option.
It's not a pefect solution because if someone downloaded an .EML from another website in Chrome, it will open automatically aswell.
I recommend having Chrome dedicated to your Web application.
You sure can open local .eml file with Outlook.
But in context of web application, you must firstly download it.