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webrtc / src / 1883d3e2313f3b3b21c076f6ce65f36fabb26bfe
commit1883d3e2313f3b3b21c076f6ce65f36fabb26bfe[log] [tgz]
authorPer Åhgren <peah@webrtc.org>Fri Feb 21 12:31:07 2020
committerCommit Bot <commit-bot@chromium.org>Mon Feb 24 13:19:14 2020
treef16dcf1aa5ce45139d534d168f55694df104f217
parent0e089db9134f253070504d0bc544fedcfc9c4038 [diff]
Optimizations and refactoring of the APM 3-band split filter

This CL refactors and optimizes the 3-band split-filter in APM, which
is a very computationally complex component.

Beyond optimizing the code, the filter coefficients are also quantized
to avoid denormals.

The changes reduces the complexity of the split filter by about 30-50%.

The CL has been tested for bitexactness on a number of aecdump
recordings.

(the CL also removes the now unused code for the sparse_fir_filter)

Bug: webrtc:6181
Change-Id: If45f8d1f189c6812ccb03721156c77eb68181211
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168189
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30592}
10 files changed
tree: f16dcf1aa5ce45139d534d168f55694df104f217
  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 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