[Feature] Custom Card mode property connection order about webrtc

[AlexxIT]

MSE will work anyway. There is no reason to use it with more priority than WebRTC.
https://github.com/AlexxIT/go2rtc/tree/master/api#javascript-api

I don't see the point of setting a manual priority.

Some tablets can play only few video on same page.

WebRTC/custom_components/webrtc/www/video-rtc.js

Lines 564 to 576 in 309b6d5

	// Video+Audio > Video, H265 > H264, Video > Audio, WebRTC > MSE
	let rtcPriority = 0, msePriority = 0;
	/** @type {MediaStream} */
	const stream = video2.srcObject;
	if (stream.getVideoTracks().length > 0) rtcPriority += 0x220;
	if (stream.getAudioTracks().length > 0) rtcPriority += 0x102;
	if (this.mseCodecs.indexOf('hvc1.') >= 0) msePriority += 0x230;
	if (this.mseCodecs.indexOf('avc1.') >= 0) msePriority += 0x210;
	if (this.mseCodecs.indexOf('mp4a.') >= 0) msePriority += 0x101;
	if (rtcPriority >= msePriority) {

[gvillo]

Yeah @AlexxIT, it's not about how many videos a tablet can play. It's about the black blink that is doing, so that's why I cannot just set RTC to avoid that one second black screen (RTC is working on most of the scenarios, except when I am using my phone hotspot or in some WiFis).

The actual behavior (if RTC is working) is: connects using MSE, and then switches to RTC.

If RTC doesn't work, it just connects using MSE which is ok

[AlexxIT]

I don't understand. Is black screen constant or it shows during few seconds?

[gvillo]

@AlexxIT I recorded a video, basically it's the black blinking when the stream switches from MSE to RTC (at the beginning), I've refreshed the page a few times, sometimes it's very fast that you don't notice, and sometimes is really bad, specially if you have like 3 cameras on the same Home Assistant page, even for my Pixel 7 Pro.

Video: https://drive.google.com/file/d/1oHV-gwe64aTICj3iMsjsAIaKZOAFaYte/view?usp=sharing

My card config for that example was the default, just adding camera name.

[AlexxIT]

You can enable only webrtc mode without switching

[gvillo]

yeah, I've tried that, the issue of doing that, RTC is not working in some scenarios (ports forwarded correctly), such as using mobile hotspot, some wifi networks using double nat, etc, that's why I need both set.

[AlexxIT]

Well. Blinking while technology change is a "normal" behaviour...