Flyleaf v3.9 - First Impressions (?)

[SuRGeoNix]

I was wondering for your first impressions with the new version as from my side I consider it the best performance improvement so far.
I was focusing to support more features and formats and I missed a critical performance issue that WinForms/WPF/WinUI was causing to Flyleaf's SwapChain, which now I think unleashed the real power of it and has nothing to envy from native (C/Cpp) players.
But enough with my impressions, I want to hear from you even if you think the opposite!

@LazyCuteLion @coldays @vzsoft @swimfish09 @umlx5h (@xlsupport Max races smoother with 3.9?)

[vzsoft]

Thank you for your hard work on the new version! I totally agree, the performance improvements are impressive, and it really feels like Flyleaf's full potential has been unlocked. The support for more features and formats is fantastic, and the player now performs incredibly well. Great job, and I'm excited to keep using it!

[xlsupport]

First impressions: Hut ab! Flawless audio, very stable video. Even a 4k 50fps live stream. HEVC 16Mbps... <1% CPU <15% GPU (= idle). A bit like how Max is racing these days ;-)

[SuRGeoNix]

They don't even have a proper emoji to emoji you 🏎️

[coldays]

I just tested 3.8 vs 3.9 on 4K 60fps DJI recordings with lots of movement. I thought 3.8 had smooth playback, but 3.9 really knocks it out of the park. Silky smooth playback like it's nothing. Well done! This is amazing!

[LazyCuteLion]

i have used others(ffmediaelement、vlc) before,i think ,flyleaf much better than them(at least in terms of performance).
this year(recent days), the issues I mentioned were promptly responded to and resolved.
i want to give you a thumbs-up.
I didn't focus on its performance,more importantly for video with alpha.
now , for wpf ,it is better than my way,but winui3 still no support(although i got a way).
thans for your excellent work!!!

[LazyCuteLion]

I am very interested for you said(Flyleaf's SwapChain),could you please tell me about the changes you made? and I can learn a lot of things from it.
(if you have time,although i can review the commits,but it's too complicated for me)

[SuRGeoNix]

Not exactly, the rendering Fps will be increased but not the presenting Fps. You produce (render) for example 100 frames and displaying (presenting) 60 of them per second. So you stress the GPU even more to produce 100 frames but not properly display them, with tearing (backbuffer flips to frontbuffer before vsync - scan of whole screen has not been completed yet).

So VSync off would only make sense for higher responsiveness / lower latency which is not really related with video playback rather more with user interactions and gaming. Even for low latency cameras doesn't worth it as your gain with VSync off latency would be really minimal (~8ms).

[LazyCuteLion]

oh,got it.you know too much.This makes me curious - what kind of job do you do?
Thank you very much for create this excellent project.

[LazyCuteLion]

However, there is a bit of a regret that my current job is no longer related to video play (it was before).

[SuRGeoNix]

This project is just a hobby and not related with my job.
I'm working on IAM (Identity and Access Management) solutions and partially on Home Automations (IoT).

[LazyCuteLion]

Enjoy your hobby!