How to Sync between DWM and Movie TV.

Question

For video playback on Movie TV,

One frame after VPP and then send to DWM, how to ensure vpp has done before DWM to present this frame?

Answer 1

DirectX uses fences, which are synchronization objects that signal when a specific operation (like VPP processing) is complete. DWM can wait on the fence before presenting the frame, ensuring VPP finishes first.

Here are some resources that might be helpful, although they might not be Movie TV specific:

• DirectX Fences: https://learn.microsoft.com/en-us/windows/win32/direct3d12/fence-based-resource-management
• Windows DWM: https://learn.microsoft.com/en-us/windows/win32/api/_dwm/