VCMGenericDecoder threading updates for all but Android.

* All methods now have thread checks.
* Variable access associated with thread checkers.
* Remove need for |rtc::CriticalSection lock_|

Since the android decoder is inherently asynchronous, and
FrameBuffer2's decoder doesn't support posting tasks to it
yet (for async decode completion), we need to tackle android
separately. Once FrameBuffer2 gets changed to use a TaskQueue
or ProcessThread, we can move Android over to delivering decoded
frames on the right thread/queue and delete generic_decoder_android.*.

Note: This is a subset of code that was previously reviewed here:
  - https://codereview.webrtc.org/2764573002/

Bug: webrtc:7361, webrtc:8907, chromium:695438
Change-Id: I118609dfa5c0f0180287d8c2b6d62987b7473c5c
Reviewed-on: https://webrtc-review.googlesource.com/55060
Commit-Queue: Tommi <tommi@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22119}
5 files changed
tree: f2c6fe8d6ef4579489637c8188fb53945ada8cfc
  1. api/
  2. audio/
  3. build_overrides/
  4. call/
  5. common_audio/
  6. common_video/
  7. data/
  8. examples/
  9. infra/
  10. logging/
  11. media/
  12. modules/
  13. ortc/
  14. p2p/
  15. pc/
  16. resources/
  17. rtc_base/
  18. rtc_tools/
  19. sdk/
  20. stats/
  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. AUTHORS
  31. BUILD.gn
  32. CODE_OF_CONDUCT.md
  33. codereview.settings
  34. common_types.cc
  35. common_types.h
  36. DEPS
  37. LICENSE
  38. license_template.txt
  39. LICENSE_THIRD_PARTY
  40. native-api.md
  41. OWNERS
  42. PATENTS
  43. PRESUBMIT.py
  44. presubmit_test.py
  45. presubmit_test_mocks.py
  46. pylintrc
  47. README.chromium
  48. README.md
  49. style-guide.md
  50. typedefs.h
  51. WATCHLISTS
  52. webrtc.gni
  53. 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 http://www.webrtc.org/native-code/development 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