What is VTDecoderXPCService?

[kyu3]

kyu3 last edited by leocg

I use Opera 48 (48.0.2685.50) on macOS High Sierra 10.13. When I started Opera and was using Opera, Multiple VTDecoderXPCService would run on macOS. What is VTDecoderXPCService? Why this proccess run when Opera run? Nearly 20 VTDecoderXPCService often run when opera run.

Screencaputure→
https://www.dailymotion.com/video/x65hc0u

Screenshot→
http://photozou.jp/photo/show/124201/251790061

[A Former User]

A Former User last edited by

VideoToolbox Framework

[kyu3]

kyu3 last edited by

VideoToolbox Framework

Thank you for reply!

Is this VideoToolbox Framework not problem? When I started Opera, Nearly ten these frameworks would to run. In this time, I didn't watch video. No webpage. Only startpage (SpeedDial). When I started Safari, this framework would not to run. When I started Vivaldi, only one this framework would to run.

[A Former User]

A Former User @kyu3 last edited by

@kyu3 It's a sanboxed and ”built-in” audio and video API in macOS/OS X. It will run when applications using this API needs to parse for example; video or audio (specially when no hardware acceleration is available for the media) The SpeedDial will is capable of showing animated wallpapers, so it may be that (even if you don't have animated wallpapers set).

However, can you check: opera://gpu/ and post the results you get for Graphics Feature Status.

[kyu3]

kyu3 @Guest last edited by

@deluxive Thank you for reply! I checked "Graphics Feature Status" of opera://gpu/.

【Graphics Feature Status】

• Canvas: Hardware accelerated
• CheckerImaging: Disabled
• Flash: Hardware accelerated
• Flash Stage3D: Hardware accelerated
• Flash Stage3D Baseline profile: Hardware accelerated
• Compositing: Hardware accelerated
• Multiple Raster Threads: Enabled
• Native GpuMemoryBuffers: Hardware accelerated
• Rasterization: Hardware accelerated
• Video Decode: Hardware accelerated
• Video Encode: Hardware accelerated
• WebGL: Hardware accelerated
• WebGL2: Hardware accelerated

[kyu3]

kyu3 last edited by

I found the reason many VTDecoderXPCServices run. It's Extensions! If I enabled some extensions, this framworks would run. Like this video.

Screencapture
https://www.dailymotion.com/video/x685mrw

I checked. If these extensions were enabled, this framework would run.

• Clearly
• CrossFire for Google Chrome
• Custom UserAgent String
• Edit This Cookie
• Ghostery
• Gif Jam (Animation Stopper)
• Save to Pocket
• uBlock Origin
• Vivaldi Forum mod
• Web Panel

If these extensions were enabled, Why would this framework run? When I took this video, I opened only Extension managaer page!

[kyu3]

kyu3 @kyu3 last edited by

Incidentally, I use these extensions on Vivaldi Browser (Stable 1.12), too. But VTDecoderXPCServices doesn't run by these extensions.

• Clearly
• Custom UserAgent String
• Edit This Cookie
• Ghostery
• Save to Pocket
• uBlock Origin
• Vivaldi Forum mod

And I updated Opera Stable to ver. 49.0.2725.34. But this problem keep to happen.

[kmielczarczyk]

kmielczarczyk Opera last edited by

We're working on this via DNA-65259. Only tabs that play software decoded H.264 video will generate new VTDecoderXPCService processes.

[kyu3]

kyu3 @kmielczarczyk last edited by

@kmielczarczyk Thank you for reply! I wait this issue would be fixed!

[kyu3]

kyu3 last edited by

I confirmed this issue was fixed on Opera Stable 50.0.2762.45! When I started this version, Just one VTDecoderXPCService runned! Thank you!!