udpsrc scene doesn't work with Unity > 2019.2

[Gregory-Baker]

Hi,

Undoubtedly a lot of work has gone into this plugin, so thanks to @mrayy for all your hard work.
It has taken me a while to get this plugin (kind of) working. I thought I'd share a few points from my experience, and ask a few questions at the same time:

Edit: Ignore 1., turns out I had my firewall settings configured differently for different versions of Unity and that was causing the issue, not the compatibility of the plugin.

1. Unity version does matter - I started with 2019.4.28f1 (the closest I had to the version used in the last commit - 2019.2.13f1) and some things worked, but other things didn't (e.g. using udpsrc in Test 2 scene did not work). I finally got the udpsrc examples working when I switched back to 2019.2.13f1. For a variety of reasons, I would really like to build the project in Unity 2020+ though. If anyone has any ideas how to get it working for later versions of Unity then let me know. I think it might be related to Distributing GStreamer with an application using this library (some elements not found) #20 but I haven't yet figured out how to get it to work. @NoTuxNoBux if you have any suggestions then please let me know! I'm just trying get it to run in the editor as well, not in build, so I imagine it should be even simpler than your use case.

2. Get the correct gstreamer version (1.16.2 mentioned in the readme worked for me. I used the MSVC version and can't testify for or against the MinGW version). I installed both the base (i.e.. gstreamer-1.0-msvc-x86_64-1.16.2.msi) and devel (i.e. gstreamer-1.0-devel-msvc-x86_64-1.16.2.msi) versions in order to compile the plugin myself. I installed the "Complete" versions of both as well, just to be sure.

3. Remember to set all the two environment variables (PATH and GST_SDK_PATH) as specified in the readme.

4. I can't work out how to get Gstreamer to output verbose debugging, as mentioned in Distributing GStreamer with an application using this library (some elements not found) #20, so I am finding it hard to figure out where the errors are occurring.

Any help on getting udpsrc to work with newer versions of Unity would be greatly appreciated!

[Gregory-Baker]

I've now tested the plugin on Unity 2020.3.3 on my home computer, in my home network and the udpsrc example (Test 2 scene) works!

I'm guessing it's just a firewall issue, so I will close the issue now.

Thanks again for a very useful tool!

Edit: I can confirm that I've got it working in Unity 2020.3.14f1 on my Work PC and network now by tweaking the firewall settings - the firewall rules are configured for each unity version separately and only my 2019.2 version was allowing traffic through a Private network (the other versions were set to block all traffic on this type of network - doh). Can't rate this plugin highly enough!