Commit graph

3 commits

Author SHA1 Message Date
Seungha Yang
8132958b3b d3d11desktopdupsrc: Add support for desktop size/rotation mode change
Re-negotiates with updated size on desktop size
(i.e., resolution, scaling factor), and rotation mode change

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2268>
2021-05-20 17:05:24 +00:00
Seungha Yang
0f7af4b143 d3d11: Move core methods to gst-libs
Move d3d11 device, memory, buffer pool and minimal method
to gst-libs so that other plugins can access d3d11 resource.
Since Direct3D is primary graphics API on Windows, we need
this infrastructure for various plugins can share GPU resource
without downloading GPU memory.
Note that this implementation is public only for -bad scope
for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/464>
2021-01-13 15:01:20 +00:00
Seungha Yang
2ca298d459 d3d11: Re-implement Desktop Duplication source
Add a new video source element "d3d11desktopdupsrc" for capturing desktop image
via Desktop Duplication based on Microsoft's Desktop Duplication sample available at
https://github.com/microsoft/Windows-classic-samples/tree/master/Samples/DXGIDesktopDuplication

This element is expected to be a replacement of existing dxgiscreencapsrc
element in winscreencap plugin.

Currently this element can support (but dxgiscreencapsrc cannot)
- Copying captured D3D11 texture to output buffer without download
- Support desktop session transition
  e.g., can capture desktop without error even in case that
  "Lock desktop" and "Permission dialog"
- Multiple d3d11desktopdupsrc elements can capture the same monitor

Not yet implemented features
- Cropping rect is not implemented, but that can be handled by downstream
- Mult-monitor is not supported. But that is also can be implemented by
  downstream element for example via multiple d3d11desktopdup elements
  with d3d11compositor

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1855>
2020-12-22 19:23:25 +00:00