Bug Fix: WebRTC Unity Plugin Audio One Way

When audio_only is on for the webrtc unity plugin, there is a bug that
the audio from hologram cannot be heard at the remote side.

Actually we found the audio is transmitted to the remote side, but the
remote side wants video data also to playout everything. So without
video data, the remote side will drop all the audio data.

Thus, on the hologram (using webrtc unity plugin) side, we should not
hook up a dummy camera, but instead we should use media constraint to
request the remote side to send video data.

This CL fixes the bug.

Bug: webrtc:8555
Change-Id: I21ddda65185b645088aa4ac15f47b3f8ffad1873
Reviewed-on: https://webrtc-review.googlesource.com/24680
Commit-Queue: Qiang Chen <qiangchen@chromium.org>
Reviewed-by: George Zhou <gyzhou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#21094}
3 files changed
tree: 0573548ba7a156fa0e504439c4bb8524c46402f3
  1. .clang-format
  2. .git-blame-ignore-revs
  3. .gitignore
  4. .gn
  5. .vpython
  6. AUTHORS
  7. BUILD.gn
  8. CODE_OF_CONDUCT.md
  9. DEPS
  10. LICENSE
  11. LICENSE_THIRD_PARTY
  12. OWNERS
  13. PATENTS
  14. PRESUBMIT.py
  15. README.chromium
  16. README.md
  17. WATCHLISTS
  18. api/
  19. audio/
  20. build_overrides/
  21. call/
  22. codereview.settings
  23. common_audio/
  24. common_types.cc
  25. common_types.h
  26. common_video/
  27. data/
  28. examples/
  29. infra/
  30. license_template.txt
  31. logging/
  32. media/
  33. modules/
  34. native-api.md
  35. ortc/
  36. p2p/
  37. pc/
  38. presubmit_test.py
  39. presubmit_test_mocks.py
  40. pylintrc
  41. resources/
  42. rtc_base/
  43. rtc_tools/
  44. sdk/
  45. stats/
  46. style-guide.md
  47. system_wrappers/
  48. test/
  49. tools_webrtc/
  50. typedefs.h
  51. video/
  52. voice_engine/
  53. webrtc.gni
  54. 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