[Adaptation] Multi-processor support for injected Resources.

Because a single Resource only has a single ResourceListener, injected
Resources only gets wired up to the stream's ResourceAdaptationProcessor
that was last to call SetResourceListener. This could potentially lead
to the relevant stream not adapting based on the injected resource
because it got wired up to the wrong stream's processor.

This CL fixes this issue by introducing BroadcastResourceListener. By
listening to 1 resource (the injected one), it can spawn N "adapter"
resources that mirror's the injected resource's usage signal, allowing
all ResourceAdaptationProcessor's to react to the signal.

This is wired up in Call, and tests are updated to verify the signal
gets through.

Bug: chromium:1101263, webrtc:11720
Change-Id: I8a37284cb9a68f08ca1bdb1ee050b7144c451297
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178386
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31612}
9 files changed
tree: 6a731c1e899ba2f7e1d3799b3b9f1d37e0ba7f4a
  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. common_types.h
  36. DEPS
  37. ENG_REVIEW_OWNERS
  38. LICENSE
  39. license_template.txt
  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. WATCHLISTS
  51. webrtc.gni
  52. webrtc_lib_link_test.cc
  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 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