WebGL: INVALID_VALUE: texImage2D: no video

I'm running a WebGL build that plays videos and i get this warning error popping up in the console every time.
It doesnt make a difference for Firefox and Chrome but for Safari the warning message repeats infinitely until it says it can display no more errors. This is what i think is causing my Safari build to run much slower.

So my questions are:

1.What does this warning mean?
2.How can I fix it?
3.Is it the reason my Safari build is running so slowly compare to the Firefox and Chrome builds?

 

@jonas echterhoff It uses the built in html5 video functionality.
Here's a link:
https://71f4d308.ngrok.com/buildv41/

 

@jonas echterhoff i use a .jslib file with the video tag and use the DLLImport function in my scripts to access the .jslib functions from the unity c# scripts.

I've attached the .jslib file in this post ( i had to change it to a .txt to upload it here)

does it make sense now?

 

@jonas echterhoff It is based off the proof of concept! Thank you for it

That could be true, although surely its not downloading as the video is included in the build? Is there a way for unity to only play the video once it is fully ready to play to ensure the video does not stop half way through? The error message happens with your proof of concept too. Is that the thing responsible for Safari running the build so slowly?

Also, my WebGL builds are still around 50MB even after omitting all unnecessary details, choosing "fastest" for optimization build, and optimizing mesh data (strip assemblies). Is there any way to reduce the build further? And do i need to put all the files the build produces on the server for it to work? Maybe that's the problem?

Cheers

 

Hi @jonas echterhoff , Is there a link to your post of your proof-of-concept html5 video playback code? Much appreciated.

 

@jonas echterhoff Thank you very much!

 

Hi @jonas echterhoff ,

Good day to you.

So I tried out your webgl video playback p-o-c, but I came across problems from all the latest versions of the known browsers (IE, Firefox, Chrome, Safari) trying to display the video.

On top of the same problem as mentioned above - texImage2D: no image - this time, it goes the same for all the browsers. And no video is showing up on the texture of the cube at all. It is either just black, or the cube is totally invisible.

I have already tried implementing the fixes that you suggested. Though the "returning null if the video is paused" is something you have already implemented.

Code (JavaScript):

1. WebGLMovieTextureUpdate: function(video, tex)
2. {
3.     if (videoInstances[video].paused)
4.         return;
5.     GLctx.bindTexture(GLctx.TEXTURE_2D, GL.textures[tex]);
6.     GLctx.texImage2D(GLctx.TEXTURE_2D, 0, GLctx.RGBA, GLctx.RGBA, GLctx.UNSIGNED_BYTE, videoInstances[video]);
7. },
8.  
9. WebGLMovieTexturePlay: function(video)
10. {
11.     if(video.readyState === video.HAVE_ENOUGH_DATA)
12.         videoInstances[video].play();
13. },

Would you be able to help me with this?

Thank you very much!

 

Does this mean the video is not being downloaded at all?

 

Hi @jonas echterhoff. Im researching the full capabilities of video streaming with Unity WebGL. As we are still on the topic of this, can you tell me to what extent video streaming in Unity WebGL is functional? As in, you provided the proof of concept and it works pretty well, but is there anything not possible right now in terms of video streaming in WebGL?

 

I am having the same issue except I do get audio from the video.

 

Hi I've been trying to implement this but I'm getting the following error:

PlatformNotSupportedException: WebGLMovieTexture is only supported on WebGL.
WebGLMovieTexture.WebGLMovieTextureCreate (System.String url) (at Assets/Plugins/WebGLMovieTexture.cs:43)
WebGLMovieTexture..ctor (System.String url) (at Assets/Plugins/WebGLMovieTexture.cs:92)
VideoTest.Start () (at Assets/Sample/VideoTest.cs:11)

What's the problem?

 

That's what I'm trying to do. What do I need to do to disable WebGL builds that say build out for iOS or Android?

 

Ok I figured out the problem. You can't do a test from within Unity. You actually have to build out the webGL application and view it in the browser only. I'm assuming that this won't work on an iOS browser either?

 

Hi @jonas echterhoff

Thanks so much for the plugin! Everything is working great apart from the seek. I'm getting an error saying "
The error was:
SecurityError: The operation is insecure."

This only happens with seek though. Any ideas?

 

Nope, seek in the sample doesn't work either. When I actually host the game (rather than playing locally in the browser) I get a different error saying that the seek function is calling an external function that doesn't exist.