Revert "Support more formats in RTCVideoFrame"

This reverts commit bd2220a9c496ef2e8567b68d4be9435a110bdc34.

Reason for revert: Broke external clients

Original change's description:
> Support more formats in RTCVideoFrame
> 
> Implement Obj-C version of webrtc::VideoFrameBuffer and use that in
> RTCVideoFrame.
> 
> Bug: webrtc:7785
> Change-Id: I49f42bcf451dd6769b3a79a65fe7b400dce22677
> Reviewed-on: https://chromium-review.googlesource.com/536773
> Commit-Queue: Anders Carlsson <andersc@webrtc.org>
> Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#18691}

TBR=magjed@webrtc.org,andersc@webrtc.org

Change-Id: Id765dd9543ed0613a6b2de108b268c3501025fcd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:7785
Reviewed-on: https://chromium-review.googlesource.com/542837
Reviewed-by: Anders Carlsson <andersc@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18697}
24 files changed
tree: ff4da789d84889c25832e03be84d9fff5a8298c8
  1. build_overrides/
  2. data/
  3. infra/
  4. resources/
  5. tools_webrtc/
  6. webrtc/
  7. .clang-format
  8. .git-blame-ignore-revs
  9. .gitignore
  10. .gn
  11. AUTHORS
  12. BUILD.gn
  13. check_root_dir.py
  14. cleanup_links.py
  15. CODE_OF_CONDUCT.md
  16. codereview.settings
  17. DEPS
  18. LICENSE
  19. license_template.txt
  20. LICENSE_THIRD_PARTY
  21. OWNERS
  22. PATENTS
  23. PRESUBMIT.py
  24. pylintrc
  25. README.md
  26. WATCHLISTS
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 http://www.webrtc.org/native-code/development for instructions on how to get started developing with the native code.

More info