#Qtox freeze windows update
#Qtox freeze windows windows

Of course, you can always reach out to us via these forums for specific issues, as we monitor them regularly, We’re working on getting better documentation out, to help answer any questions you may have. We dropped the ball on that front, so I’d like to offer my apologies to you all.

We worked with partners to make sure their applications continued to function throughout this change, but we have done a poor job communicating this change out to you guys.

#Qtox freeze windows windows

So yes, MJPEG and H.264 being decoded / filtered out is the result of a set of features we needed to implement, and this behavior was planned, designed, tested, and flighted out to our partners and Windows Insiders around the end of January of this year. Regarding Roman’s concerns about Lync: both Lync and Skype are partner teams, and we stay in touch throughout the development process, so the camera functionality in those applications will continue to work. The reasoning for H.264 being decoded can get a little more complicated (and I’m just learning the details myself as I talk to other members of the team), but the basics revolve around how H.264 allows for encoding parameters to be changed on the camera directly, and how in a situation where multiple applications are making use of this control path, they could interfere with each other. We wanted to prevent applications from unknowingly degrading the user experience due to a platform change. This can be even more noticeable or perhaps trigger error cases on in-market devices with a hardware decoder which may be limited on how many decodes can take place simultaneously. One of the reasons this led to the MJPEG decoding is because we wanted to prevent multiple applications from decoding the same stream at the same time, which would be a duplicated effort and thus an unnecessary performance hit. It was important for us to enable concurrent camera access, so Windows Hello, Microsoft Hololens and other products and features could reliably assume that the camera would be available at any given time, regardless of what other applications may be accessing it.

#Qtox freeze windows update

With the Anniversary Update to Windows 10, it is now possible for multiple applications to access the camera in ways that weren’t possible before.

One of the main reasons that Windows is decoding MJPEG for your applications is because of performance. KsStudio and USBView still show that all three webcams have UVC MJPG descriptors intact and available at Windows Kernel Streaming. Anniversary update removed WebCam MJPG from supported media types replaceing them with NV12 for MMF (Microsoft Media Foundation) and dropping MJPG completely for DirectShow.