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Aritzbn
Asked: 2020-01-11 06:53:58 +0800 CST 2020-01-11 06:53:58 +0800 CST

Pass stream by IntPtr pointer to VideoView

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How can I pass a type argument IntPtrto a VideoViewin Xamarin?

I obtain a stream from a video recorder using some of the manufacturer's own libraries (Which do not have much documentation) and I cannot implement the stream to one VideoViewas I say.

I'm really not sure how I did it so I'm going to leave the code that works for me in C# in a project Windows Formsthat does work for me, and in turn put the part of what I'm trying to do in Xamarin.

C# functional code Windows Forms:

//Por aquí arriba hay configuración de direcciones ip y credenciales para el objeto. 
var info = new CHCNetSDK.LPNET_DVR_PREVIEWINFO();
info.hPlayWnd = VideoBox.Handle; //Declaro por donde se va a reproducir el Stream
CHCNetSDK.NET_DVR_RealPlay_V40(idConexion,ref info, null, User); //Inicia el Stream

VideoBoxit is(PictureBox)

Code NOT functional in Xamarin:

Attempt 1 using MediaController:

var mediaController = new MediaController();
info.hPlayWnd = mediaController.Handle;
videoView.setMediaController(mediaController);
CHCNetSDK.NET_DVR_RealPlay_V40(idConexion,ref info, null, User);
videoView.Start();

I try 2 removing MediaControlleronly withVideoView

When I have tried it with the videoView the only difference is that I have removed the lines in which it is referenced mediaControllerby doing:

info.hPlayWnd = videoView.Handle; 
videoView.Start();

I try 3 using ImageViewas ifPictureBox

info.hPlayWnd = imageView.Handle;
CHCNetSDK.NET_DVR_RealPlay_V40(idConexion,ref info, null, User);

As I say, it has never worked for me. It does not return any kind of exception, VideoViewit just stays black. I can ensure that the resource to which I try to connect works 100%.

Any ideas to port the code from Windows Formsto Androidor some alternative?

android

1 Answers

  1. Best Answer

    I have found a solution for this, as the stream can be seen from any browser I have chosen to use WebView to be able to visualize the "stream" which actually appears to be a sequence of images and deny the zoom and movements of the webview so that it appears that way a video.

    C# code:

    var wPlayer = FindViewById<WebView>(Resource.Id.webView1);
//Zoom Out para ajustar contenido a pantalla por width
wPlayer.Settings.LoadWithOverviewMode = true; 
wPlayer.Settings.UseWideViewPort = true;
wPlayer.SetPadding(0, 0, 0, 0);

wPlayer.LoadUrl("http://ip:port/?params");

    axml:

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main">

<android.webkit.WebView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/webView1"
/>


</RelativeLayout>
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