logo

Live Production Software Forums

www.vmix.com

Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
Unable to get Chrome browser as input
Options
Go to last post Go to first unread
Previous Topic Next Topic
doggy  
#1 Posted : Wednesday, March 1, 2017 12:07:40 PM(UTC)
doggy

Rank: Advanced Member

Groups: Registered
Joined: 12/27/2012(UTC)
Posts: 5,222
Belgium
Location: Belgium

Thanks: 293 times
Was thanked: 955 time(s) in 790 post(s)
regardless of GPU or combination there off (Integrated or Nvidea) I am just not getting the browser as desktop capture input
Trying it with scanconverter I can see the mouse ( on black background)

Is this on purpose due to the existence of a web browser input ?
Back to top

Wanna join the discussion?! Login to your vMix Forums forum account, or Register a new forum account.
Back to top  
DWAM  
#2 Posted : Wednesday, March 1, 2017 12:15:40 PM(UTC)
DWAM

Rank: Advanced Member

Groups: Registered
Joined: 3/20/2014(UTC)
Posts: 2,721
Man
France
Location: Bordeaux, France

Thanks: 243 times
Was thanked: 794 time(s) in 589 post(s)
no it should work with local desktop capture on vMix host or NDI version on network computers. Also with Newtek tools.
Check your firewall maybe?

Is it only Chrome? Can you get full display or other apps?
Back to top
WWW
doggy  
#3 Posted : Wednesday, March 1, 2017 12:39:41 PM(UTC)
doggy

Rank: Advanced Member

Groups: Registered
Joined: 12/27/2012(UTC)
Posts: 5,222
Belgium
Location: Belgium

Thanks: 293 times
Was thanked: 955 time(s) in 790 post(s)
Can get full display , can get other apps (be it some have to run on same GPU)
its just Chrome ( yes it's up to date 56.0.2924.87 (64-bit))
Back to top
mjgraves  
#4 Posted : Wednesday, March 1, 2017 12:59:25 PM(UTC)
mjgraves

Rank: Advanced Member

Groups: Registered
Joined: 7/1/2015(UTC)
Posts: 1,151
Man
United States
Location: Houston TX

Thanks: 319 times
Was thanked: 263 time(s) in 233 post(s)
This can happen when an app is taking advantage of hardware acceleration capabilities of the video card. That's a hardware feature that cannot be intercepted by the software layers where NDI and screen capture reside.

Try disabling hardware acceleration in CHrome.

http://ccm.net/faq/35743...le-hardware-acceleration

Open Google Chrome.
Click Customize and Control Google Chrome > Settings.
Click on "Show advanced settings" and scroll to the "System" section.
Uncheck "Use hardware acceleration when available" and restart Google Chrome.
Back to top
WWW BLOG
thanks 1 user thanked mjgraves for this useful post.
doggy on 3/1/2017(UTC)
doggy  
#5 Posted : Wednesday, March 1, 2017 1:33:59 PM(UTC)
doggy

Rank: Advanced Member

Groups: Registered
Joined: 12/27/2012(UTC)
Posts: 5,222
Belgium
Location: Belgium

Thanks: 293 times
Was thanked: 955 time(s) in 790 post(s)
Thank you mjgraves !

does the trick when both Chrome and vMix are running on the same integrated intel GPU.
As I run vMix on Nvidea (Chrome doesn't) still have the problem then
Back to top
doggy  
#6 Posted : Wednesday, March 1, 2017 1:38:23 PM(UTC)
doggy

Rank: Advanced Member

Groups: Registered
Joined: 12/27/2012(UTC)
Posts: 5,222
Belgium
Location: Belgium

Thanks: 293 times
Was thanked: 955 time(s) in 790 post(s)
In addition , when using scanconverter vMix has no problem getting the browser regardless on what GPU it runs
Back to top
mjgraves  
#7 Posted : Wednesday, March 1, 2017 2:30:18 PM(UTC)
mjgraves

Rank: Advanced Member

Groups: Registered
Joined: 7/1/2015(UTC)
Posts: 1,151
Man
United States
Location: Houston TX

Thanks: 319 times
Was thanked: 263 time(s) in 233 post(s)
doggy wrote:
In addition , when using scanconverter vMix has no problem getting the browser regardless on what GPU it runs


Of course, that's capturing the hardware output. Final stage. Nothing to get in the way except a bad cable.

Incidentally, this can also happen if your try to share a Powerpoint window showing a slide presentation. When Powerpoint is showing slides (presenting) in a window it tries to use hardware acceleration, which fails.

When full screen it handles it differently, which works.
Back to top
WWW BLOG
doggy  
#8 Posted : Wednesday, March 1, 2017 3:06:49 PM(UTC)
doggy

Rank: Advanced Member

Groups: Registered
Joined: 12/27/2012(UTC)
Posts: 5,222
Belgium
Location: Belgium

Thanks: 293 times
Was thanked: 955 time(s) in 790 post(s)
Quote:
In addition , when using scanconverter vMix has no problem getting the browser regardless on what GPU it runs


Was AFTER the tweak !! prior to that same issue

Quote:
Of course, that's capturing the hardware output. Final stage. Nothing to get in the way except a bad cable.


SO what is vMix capturing then ? (locally or externally with vmixdesktopcapture )
How does scanconverter distinguish between various windows/apps ?
Back to top
mjgraves  
#9 Posted : Thursday, March 2, 2017 11:21:54 AM(UTC)
mjgraves

Rank: Advanced Member

Groups: Registered
Joined: 7/1/2015(UTC)
Posts: 1,151
Man
United States
Location: Houston TX

Thanks: 319 times
Was thanked: 263 time(s) in 233 post(s)
doggy wrote:
SO what is vMix capturing then ? (locally or externally with vmixdesktopcapture )
How does scanconverter distinguish between various windows/apps ?


Consider two different ways of capturing video; hardware vs software.

(1) Hardware - you connect the output of a computer to a capture card (or scan convertor.) Notwithstanding things like HDCP, whatever shows up on the display will be captured.

(2) Software - an app on the host intercepts the imagery en route to the display. It's part of a software stack. If hardware acceleration is being used on the video card the imagery that you seek to capture may not pass through that software stack at all, making it impossible to capture.

Disable hardware acceleration and you ensure that the stream is passing through the software stack, os accessible to desktop capture.

I learned this lesson in the bad old days when DVDs were new. Computers were slower and leveraged hardware acceleration to play the DVD. This was also part of the copy protection scheme. They wanted to ensure that you could not use a software DVD player & screen capture to make a copy of movie.

You could still capture the entire output of the VGA card, but screen captures returned a black rectangle where the video should be.
Back to top
WWW BLOG
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Privacy Policy | Powered by YAF.NET | YAF.NET © 2003-2024, Yet Another Forum.NET
This page was generated in 0.108 seconds.