[SOLVED] Embedding a webvr experience using pythonista

Brun0oO

Hi,

Here a demo : https://github.com/Brun0oO/Pythonista/tree/master/webvr_embedded

My goal is to embed a webvr experience using pythonista and more specially to display a stereoscopic 360 video (it sounds crazy does it not?).

~~My results :~~

* If I use a webview then I manage to display an online webvr experience.
* If I use a local flask server then I manage to stream a video to my webview.
* But if I try to embed the webvr experience and use my local streaming server then the same video is not displayed...

~~Can anyone help me ?~~

~~Thanks a lot !~~

JonB

You might need to host all of the files locally. Download the JavaScript used by the web vr

Brun0oO

@JonB : thanks for your advice but I think I host all the files locally and I use theses resources correctly (have a look to the 'web/static/js' directory and the 'vr_embedded.html' file). Is there anything in particular you're referring to?

Brun0oO

I got it, now it works !
I'm going to suggest some modifications of wkwebview.py to its author ;o)

Note: I need to find a better way to clear the web cache... sometimes it fails...

mikael

@Brun0oO said:

I'm going to suggest some modifications of wkwebview.py to its author ;o)

Please do submit improvements or ideas, either here or as issues/pull requests.

Brun0oO

@mikael said:

Please do submit improvements or ideas, either here or as issues/pull requests.

Ok I made my first pull requests on your repository ;o)
do not hesitate to tell me if this is badly done...

I think I still have a kind of memory leak in my script since I can't run it twice (Pythonista leaves unexpectedly) but I think it's not related to your script...
Indeed strange thing : I have to call a blank page when closing my script otherwise the sound of my video continues to play...

mikael

@Brun0oO said:

Ok I made my first pull requests on your repository ;o)

Thanks, will take a look.

I think I still have a kind of memory leak in my script since I can't run it twice (Pythonista leaves unexpectedly) but I think it's not related to your script...

What is the ObjC exception? (Search for dgelessus pythonista_startup if you have not set up ObjC exception logging earlier.)

Brun0oO

@mikael said:

What is the ObjC exception?

Thank you a lot for the dgelessus's trick !
Here the detail of the caught exception :

Fatal Python error: Bus error

Thread 0x000000016e253000 (most recent call first):
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/selectors.py", line 377 in select
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/socketserver.py", line 237 in serve_forever
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/werkzeug/serving.py", line 437 in serve_forever
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/werkzeug/serving.py", line 693 in inner
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/werkzeug/serving.py", line 711 in run_simple
  File "/private/var/mobile/Containers/Shared/AppGroup/A0225C98-C19E-4DB5-B0EE-E750A7DDCC8E/Pythonista3/Documents/site-packages/flask/app.py", line 841 in run
  File "/private/var/mobile/Library/Mobile Documents/iCloud~com~omz-software~Pythonista3/Documents/webvr_embedded/main.py", line 152 in run
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 917 in _bootstrap_inner
  File "/var/containers/Bundle/Application/8FF92FC6-5C37-4D62-B81A-058EFF5E9BFF/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/threading.py", line 885 in _bootstrap

Thread 0x000000016dcbb000 (most recent call first):
  File "/private/var/mobile/Library/Mobile Documents/iCloud~com~omz-software~Pythonista3/Documents/webvr_embedded/main.py", line 206 in __init__
  File "/private/var/mobile/Library/Mobile Documents/iCloud~com~omz-software~Pythonista3/Documents/webvr_embedded/main.py", line 258 in <module>

As you can see, I think the problem comes from my embedded http server. I do not have to close it properly (despite my attempt)... well it's not easy because of the external library and the multi threading mechanism used...I will try to look more closely (if anyone wants to help me, I'm interested ;o)

JonB

Have you tried this to close the app?

mikael

@Brun0oO, I have been using this bottle server to be my cleanly exiting threaded web server, for quite a while now, without issues.