[audio_core] Convert chans and rates to int

This CL converts audio_core to more consistently use signed
integers for channel counts, frame rates, frequencies and
buffer sizes.

Test: fx test -o audio_mixer_unittests audio_fidelity_tests

Change-Id: Ib4afd5a3eef4103c74e995cbeeb5e8fb7ff78382
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/498702
Commit-Queue: Martin Puryear <mpuryear@google.com>
Reviewed-by: Tom Bergan <tombergan@google.com>
95 files changed
tree: 9454ab04bd0eaa3ebba4c615925bd443783c3f6f
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. products/
  9. scripts/
  10. sdk/
  11. src/
  12. third_party/
  13. tools/
  14. zircon/
  15. .clang-format
  16. .clang-tidy
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. .style.yapf
  22. AUTHORS
  23. BUILD.gn
  24. CODE_OF_CONDUCT.md
  25. CONTRIBUTING.md
  26. LICENSE
  27. OWNERS
  28. PATENTS
  29. README.md
  30. rustfmt.toml
README.md

Fuchsia

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Read more about Fuchsia's principles.

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