Played and stopped events not fired in Unity Editor

[GiuseppePiscopoHypex]

Describe the issue
We have an existing Unity project using HisPlayer. A WebGL project. The issue arises only when running in Unity Editor. It does not happen when the WebGL build runs within the web page.

1. When code in HISPlayerManager-derived class calls Play(...), playback starts but no Played event is logged nor triggered. For clarity, HISPlayerCtrl is the mentioned derived class. We added logs before calls to HISPlayerManager instance methods.

   [HISPlayerCtrl] invoking Seek on index 0 to position 0
   HISPLAYER: EventPlaybackSeek
   
   [HISPlayerCtrl] invoking Play on index 0
   # no HISPLAYER log here!
   

2. When clip ends, no event is triggered at all. No Stopped, Paused, EndOf....

3. When clip is ended, and (due to existing application logic) code anyway calls Stop(...), some events are logged/triggered:

   [HISPlayerCtrl] invoking Stop on index 0
   HISPLAYER: EventPlaybackSeek
   HISPLAYER: EventPlaybackStopped
   

Your system and development environment:

• HISPlayer Unity Video Player SDK version: both 4.9.2 and 4.11.0
• Unity version: 2022.2.23
• Package URL (if purchased from the store): https://assetstore.unity.com/packages/tools/video/video-streaming-player-webgl-283452
• Operating system (OS): Windows 11 25H2

To Reproduce
Steps to reproduce the issue:

1. Play a stream programmatically with HISPlayerManager.Play(...)
   • Played event should trigger. It does not.
2. Wait for clip playback ending
   • Stopped event should trigger. It does not.

Screenshots

It does not seem applicable.

Things we tried

• We tried both with an M3U8 URL as well as an MP4 URL. No change.
• We tried deleting Library and obj directories. No change.
• We tried reverting back repository history to several commits, in case it was somehow due to our code. No change. Specifically we reverted to a release commit where the issue for sure did not happen in editor at the time. And instead now the issue happens anyway.
• We tried opening project on different development machines, where the issue was not present before, and the project was not being opened for a while, and it is now present.
• Already mentioned: run in the editor -> issue; run in web page -> no issue
• Already mentioned: upgrading from 4.9.2 to 4.11.0. No change.

As you can imagine this issue is harming our development workflow. Is there anything else we can try within our project? Thanks

[NurikHISPlayer]

Hi @GiuseppePiscopoHypex,

We are going to check it out and will come back to you within the next days.

[GiuseppePiscopoHypex]

Not sure if it's the same issue, but also we were not able to receive any error event as well.

In the scenario shown by the console log below, a demo project with a single stream was built and run in a local dev server.

• The stream points to an existing remote M3U8 stream.
• After a few seconds we disabled internet connection on the dev machine.

Consequences:

• at some point segments could not be loaded. The log shows download errors for segment_006.ts, but there were previous errors on segment_004.ts and segment_005.ts, not shown here for brevity
• then, the web player (HisPlayerUnity.js) logs error, but nothing is triggered within Unity player ([HISPlayer ...])

The log arrives at the point where the playback is stuck on the last available frame. The last message from Unity player is about "State change Buffering".

As said at the beginning of this message, we're not sure if this is related to the same initial issue or not. If there needs to be a separate topic on this, please just tell us.

Thanks

[GiuseppePiscopoHypex]

Hi. Is there any update on this? Thanks a lot

[ivder]

Hi @GiuseppePiscopoHypex, we are checking the 2 issues that you are reported.
Regarding the first issue, we are improving the consistency of some events behavior across platforms and it will be published in the next release.
For the second issue, the HISPLAYER_ERROR_NETWORK_FAILED event that is triggered when there is no internet connection is not supported yet on WebGL. We will add it

[GiuseppePiscopoHypex]

Thanks for the update! Do you have any time frame yet for the next release?
Regards

[ivder]

Hi @GiuseppePiscopoHypex , after more checking we cannot reproduce the first issue that you reported regarding the event is not triggered on windows editor.
You mentioned "Specifically we reverted to a release commit where the issue for sure did not happen in editor at the time.". Which HISPlayerSDK version that you used in that release commit where the issue didn't happen?

Could you try creating a new project, simply adding HISPlayerSDK, and test HISPlayerSample to see whether the problem occurs there?

[GiuseppePiscopoHypex]

The release commit referenced version 4.9.2.

When we noticed the issue last week, the project still used version 4.9.2, and the issue was present.

We reverted back to the release commit, and the issue was (surprisingly) present now. We thought there might be some cache or some parts of the library that are downloaded, as we could not explain how turning back to a previously working commit, it was now not working.

Back on the tip of the branch. We wiped the library and object directories, and reopened project to reinstall all packages. Issue still there.

We upgraded then to version 4.11.0. Issue still there.

We'll try with a new project. If that works, I'd like to know if you have any suggestions on things to wipe/delete in our original project to make sure the library is completely re-installed.

Thanks

[GiuseppePiscopoHypex]

Hi @ivder
I'm able to reproduce the issue in a sample project. How can I share the project with you people?

From preliminary tests, behavior IN EDITOR changes depending on the played video, although all tested videos are quite standard ones. We saw different events logged when video was:

1. https://api.hisplayer.com/media/master.m3u8?contentKey=s7PwvPwJ,
   stream provided in SDK sample

2. https://test-streams.mux.dev/x36xhzz/x36xhzz.m3u8,
   publicly available test stream (big buck bunny), provided in this case by mux.dev

3. http://localhost:8080/test-5s.mp4,
   MP4 file served by local dev server.
   Test video generated by ffmpeg with this command:
   ffmpeg -f lavfi -i testsrc=duration=5:size=1280x720:rate=30 -c:v libx264 -pix_fmt yuv420p test-5s.mp4

4. http://localhost:8080/test-5s-flags.mp4,
   MP4 file served by local dev server.
   Test video with specific flags to move metadata to start of file and to fix timestamps, generated by ffmpeg with this command:
   ffmpeg -f lavfi -i testsrc=duration=5:size=1280x720:rate=30 -c:v libx264 -profile:v baseline -pix_fmt yuv420p -movflags +faststart -fflags +genpts test-5s-flags.mp4

Outcome summary regarding events logged in editor is as follows:

Nr	Video Source	Outcome	Events
1	https://api.hisplayer.com/media/master.m3u8?contentKey=s7PwvPwJ	✅	Ready & Played. Did not wait until its end
2	https://test-streams.mux.dev/x36xhzz/x36xhzz.m3u8	❌	No Ready, nor Played. Did not wait until its end
3	http://localhost:8080/test-5s.mp4	❌	No Ready, nor Played. No Stopped when end reached
4	http://localhost:8080/test-5s-flags.mp4	❌	No Ready, nor Played. No Stopped when end reached

In web page, they all show expected events. Again, this happens only in editor and basically harms development flow.

Thanks for your support!

[ivder]

Hi @GiuseppePiscopoHypex , you can send it to contacts@hisplayer.com

[GiuseppePiscopoHypex]

Hello, tried sending but I got following response from mail server. The Italian part basically says email address does not exist or cannot receive messages.

Indirizzo non trovato
Il tuo messaggio non è stato recapitato a contacts@hisplayer.com perché l'indirizzo risulta inesistente o non può ricevere email.
ULTERIORI INFORMAZIONI
Risposta:
550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. For more information, go to https://support.google.com/mail/?p=NoSuchUser 2adb3069b0e04-599002bed41sor466470e87.8 - gsmtp

[ivder]

Hi @GiuseppePiscopoHypex apology, please send to contact@hisplayer.com