Wayland screencast: use stream size to adjust source stride of DMA-BUFs

In commit a6ed749b12c63d252c6d893d5b5b62fcf35773d9 we used width of the
frame we copy into to calculate the source stride. This is a wrong
assumption as there might be implementations (e.g. GNOME) where we might
have to import a DMA-BUF with size of the whole screen and just having
information in SPA_META_VideoCrop metadata to get the real size of the
frame we will end up using. Given this, we always have to calculate
source stride using the size of the stream to not end up copying pixels
from the empty area of the imported DMA-BUF.

Also improve naming of variables to have names better describing what
they really represent and add some comments explaining why some things
are written the way they are.


Bug: chromium:1333304
Change-Id: I755a5139336c1da5abf95591a2b70a68659a255f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267002
Commit-Queue: Jan Grulich <grulja@gmail.com>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Cr-Commit-Position: refs/heads/main@{#37344}
1 file changed
tree: 3bfb0af8b7ed71e8c7d147b03bbf8caa20804538
  1. api/
  2. audio/
  3. build_overrides/
  4. call/
  5. common_audio/
  6. common_video/
  7. data/
  8. docs/
  9. examples/
  10. g3doc/
  11. infra/
  12. logging/
  13. media/
  14. modules/
  15. net/
  16. p2p/
  17. pc/
  18. resources/
  19. rtc_base/
  20. rtc_tools/
  21. sdk/
  22. stats/
  23. system_wrappers/
  24. test/
  25. tools_webrtc/
  26. video/
  27. .clang-format
  28. .git-blame-ignore-revs
  29. .gitignore
  30. .gn
  31. .mailmap
  32. .style.yapf
  33. .vpython
  34. .vpython3
  35. AUTHORS
  36. BUILD.gn
  37. CODE_OF_CONDUCT.md
  38. codereview.settings
  39. DEPS
  40. DIR_METADATA
  41. ENG_REVIEW_OWNERS
  42. g3doc.lua
  43. LICENSE
  44. license_template.txt
  45. native-api.md
  46. OWNERS
  47. PATENTS
  48. PRESUBMIT.py
  49. presubmit_test.py
  50. presubmit_test_mocks.py
  51. pylintrc
  52. README.chromium
  53. README.md
  54. WATCHLISTS
  55. webrtc.gni
  56. webrtc_lib_link_test.cc
  57. 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