Is there currently a NuGet package for Xamarin Forms that allows you to play videos from a System.Io.Stream object? I have played about with the MediaManager plugin but cannot get the player to work. I am using it in the shared project and also can't find a way to procedurally generate VideoViews in the codebehind (the docs only show how to add to Xaml and bind from the codebehind which isn't what i'm looking for)
A easy way is to save the web video link in the firebase and play it with url.
If you saved the stream in the firebase, you could read the stream and save it into storage to play it with file path.
MediaManager: https://github.com/Baseflow/XamarinMediaManager
If you read the stream from Firebase Database, you could google for the Xamarin.forms firebase realtime database. You would find a lot of samples.
After saving the stream into storage (I use Xamarin.Essentials.FileSystem.AppDataDirectory for example), you could play the video like below.
The path of Xamarin.Essentials.FileSystem.AppDataDirectory:
/data/user/0/Package name/files/
The code:
private async void play_Clicked(object sender, EventArgs e)
{
string filename = "video.mp4";
var path = Path.Combine(Xamarin.Essentials.FileSystem.AppDataDirectory, filename);
await CrossMediaManager.Current.Play(path);
}
Related
I want to extract a thumbnail from an mp4 video hosted in azure storage. My current method in C# uses a NReco NuGet package:
But that is a local file. How do i extract the thumb from an azure storage file.
string mp4inputpath = server.mappath("~/testfolder/myvideo.mp4");
string thumbOutputPath = server.mappath("~/testfolder/mythumb.jpg");
var ffMpeg = new NReco.VideoConverter.FFMpegConverter();
// Get the thumb at the frame 1 second into the video
ffMpeg.GetVideoThumbnail(mp4inputpath, thumbOutputPath, 1);
That works! But i need to use an azure storage file url for mp4inputpath.
I can download the mp4 file from azure storage and save it temporarily into my azure web app. I can do that programatically.
Then extract the thumb, ie,
ffMpeg.GetVideoThumbnail(mp4inputpath, thumbOutputPath, 1);
Then delete the temporary mp4 within my app.
this works but i don't know it is advisable to download mp4 files into my azure web app. I don't know if it will scale. This is the only solution i have, so far.
string mp4Url = #"https://mysorageaccount.blob.core.windows.net/mp4/vacation/summer/dogbarking.mp4";
string thumbOutputPath = server.mappath("~/testfolder/mythumb.jpg");
var ffMpeg = new NReco.VideoConverter.FFMpegConverter();
// Get the thumb at the frame 1 second into the video
ffMpeg.GetVideoThumbnail(mp4Url, thumbOutputPath, 1);
This does not seem to work. No Error, but the thumbOutputPath file is empty.
What you've done is pretty much what you have to do, since you cannot open an object in Azure Storage as you would a local file. So, grabbing the file into a local file or a stream is what you'd need to do.
As far as scaling: that will depend on the size (and number of instances) you're running in your Web App. Just be aware that you should have both your storage account and your Web App in the same region, to reduce latency and avoid egress charges for bandwidth.
I want to create an application where the user after authentication can upload a file(txt/xml etc.) using the Azure Mobile Services and after that he can download only those files which were uploaded by himself.
I've watched a lot of tutorials (including this one: link ) but in this case they simply inserts a row to a database table. I want basically the same thing, just with files. How can I do that?
I'm really new to this, so I'm just guessing, but should I upload the files to Blob Storage, and store a link in the database pointing to that file? I'm searching for the best practice.
Yes, you are correct!
You would be limited in size if you tried to store the text file as a field in the database.
http://azure.microsoft.com/en-us/documentation/articles/mobile-services-windows-store-dotnet-upload-data-blob-storage/
Shows how to do what you want to do but with images.
You would want to change the image stream to a text stream here:
// Get the new image as a stream.
using (var fileStream = await media.OpenStreamForReadAsync())
{
...
}
And use the Stream classes instead to open the file stream:
http://msdn.microsoft.com/en-us/library/windows/apps/system.io.stream(v=vs.105).aspx
I am uploading audio file to server normally, now I want to get the mp3 file 196kbps and set to 128kbps.
NAudio.Wave.Mp3FileReader wave = new NAudio.Wave.Mp3FileReader(stream);
Id3.Mp3Stream wave2 = new Id3.Mp3Stream(stream, Id3.Mp3Permissions.ReadWrite);
I can load all information about the mp3 but I cant modify anything about audio quality. Any option/slampe to do that on asp.net?
Read this article about audio converting in .NET
You can all things you can do in .NET in ASP,NET.
http://www.codeproject.com/Articles/501521/How-to-convert-between-most-audio-formats-in-NET
I am using VLC plugin to run an rtsp stream. The stream works good. But I want to store these videos to a file destination. I use this code but does not work.
axVLCPlugin21.playlist.add("rtsp://192.168.10.222:554/h264", null, ":sout=#transcode{vcodec=theo,vb=800,acodec=flac,ab=128,channels=2,samplerate=44100}:file{dst=C:\\123.ogg,no-overwrite} :sout-keep");
axVLCPlugin21.playlist.play();
This code only plays the rtsp stream but does not store. However, the same options can be used to stream directly on the VLC player.
Try using this Option for Storing Videos and displaying videos simultaneously
original commad to play in vlc
%vlc path% vlc.exe -vvv rtsp://192.168.10.22:554/h264 :sout=#transcode{vcodec=theo,vb=800,acodec=flac,ab=128,channels=2,samplerate=44100}:duplicate{dst=file{dst=C:\\\\123.mp4},dst=display}:sout-keep
if this works try to use
:sout=#transcode{vcodec=theo,vb=800,acodec=flac,ab=128,channels=2,samplerate=44100}:duplicate{dst=file{dst=C:\\\\123.mp4},dst=display}:sout-keep
":sout=#transcode{vcodec=theo,vb=800,acodec=flac,ab=128,channels=2,samplerate=44100}:file{dst=C:\123.ogg,no-overwrite} :sout-keep
also try to work in VLC gui by using streaming option+displaylocally+dst=file
Refrence:HowTo Receive and Save a Stream
VLC does not support recording of streams via plugin. Check this Link
I got a work around for it. I record the stream by calling the VLC directly. However, the player is hidden. I use this code:
Process.Start("C://Program Files//Videolan//VLC//VLC.exe","\"rtsp://xxx.xxx.xxx.xxx:554/h264\" --qt-start-minimized --sout=#transcode{vcodec=theo,vb=800,acodec=flac,ab=128,channels=2,samplerate=44100}:file{dst=C:\\123.ogg,no-overwrite}");
am developing an application which can fetch files from internet.. how do i download and save a "docx" or "wav" file from internet within the application and use it later with other application likes office or windows media player.
You can download files in the background (ie. they will continue even when your application is not running).
Having said that, you should research the types of files you need to support. For example, you can play an audio file (if the format is supported) or add it to Music hub but you cannot open a file in Office. Very few filetypes can be integrated with, so do some research before you start writing your app otherwise you might be disappointed.
place an image control in your page. here im1 is controls name.
it is working for me
string imgurl="http://.........";(path)
Uri addrs=new Uri(imgurl,UriKind.Absolute);
BitmapImage bitmap = new BitmapImage(addrs);
im1.Source = bitmap;