media plays the sound but there is no image after [restart window10+fisrt start programe] with low probability

[yangbocheng]

#That just may show after restart windows10 with low probability.
#prepare
create a VLCplayer in xaml the same as Example.
play a MP4 after the Event ContentRendered.
restart Windows10 computer and start the program.
#phenomenon //restart window + fisrt start programe
it will always take a few time to fisrt initialize VLC
it may play without image with low probability. But if i restart the programe, it just can work well again

[devkanro]

Have you tried to stop it and replay?

[yangbocheng]

When this happens，i have tried every option such as pause()/resume(), play(), stop(), replay(). There is good sounds, But it still play without image.

Now, it often play without image.........even i restart the programe
#I'am sure that i load media and play it after the Event ContentRendered.
and before loadmedia , there is a log .
Debug($"initsource:{hascontentRended} ApiManager.IsInitialized:{ApiManager.IsInitialized} media:{media.IsInitialized}");====>"initsource:True ApiManager.IsInitialized:True media:True"

[yangbocheng]

#add
when it happends, if i change the size of parent window, thers is still no image(with sounds)
But when it plays well in the beginning, the video image will increase synchronously.
Maybe that's useful?!...