Begin implementing WGC CaptureFrame

This change introduces the design that will allow us to deliver frames
synchronously to callers despite the Windows.Graphics.Capture APIs being
inherently asynchronous.

We achieve this by having WindowCapturerWinWgc create and maintain a
WgcCaptureSession object for each window that it is asked to capture a
frame for. The capture session object will be the class that actually
uses the WGC APIs, and it will store the frames it receives in a frame
pool and deliver them via GetMostRecentFrame.

The next CL will add the necessary functionality to the
WgcCaptureSession class.

Bug: webrtc:9273
Change-Id: I44e164f4874503d8ccc8e6a210e74f9c8458f6c4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/184220
Commit-Queue: Austin Orion <auorion@microsoft.com>
Reviewed-by: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32240}
10 files changed
tree: 4a37ac9b1972ec3bb6750485c2a6a770b8ef523e
  1. api/
  2. audio/
  3. build_overrides/
  4. call/
  5. common_audio/
  6. common_video/
  7. data/
  8. docs/
  9. examples/
  10. logging/
  11. media/
  12. modules/
  13. p2p/
  14. pc/
  15. resources/
  16. rtc_base/
  17. rtc_tools/
  18. sdk/
  19. stats/
  20. style-guide/
  21. system_wrappers/
  22. test/
  23. tools_webrtc/
  24. video/
  25. .clang-format
  26. .git-blame-ignore-revs
  27. .gitignore
  28. .gn
  29. .vpython
  30. abseil-in-webrtc.md
  31. AUTHORS
  32. BUILD.gn
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. DEPS
  36. ENG_REVIEW_OWNERS
  37. LICENSE
  38. license_template.txt
  39. native-api.md
  40. OWNERS
  41. PATENTS
  42. PRESUBMIT.py
  43. presubmit_test.py
  44. presubmit_test_mocks.py
  45. pylintrc
  46. README.chromium
  47. README.md
  48. style-guide.md
  49. WATCHLISTS
  50. webrtc.gni
  51. webrtc_lib_link_test.cc
  52. whitespace.txt
README.md

WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.

Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.

The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others.

Development

See here for instructions on how to get started developing with the native code.

Authoritative list of directories that contain the native API header files.

More info