commit b0d7666213098c239430eca03b0410c97405ab75
author Alper Gungormusler <alperg@google.com> Sat Jul 02 02:57:47 2022 +0000
committer CQ Bot <fuchsia-internal-scoped@luci-project-accounts.iam.gserviceaccount.com> Sat Jul 02 02:57:47 2022 +0000
tree e84ef9ce2c12802913cc459a78c95e246866c501
parent b913ed1479780eeb0de1e6d2e9d0ed17267964af

[mixer_service] Add SincSampler

Added more tracing to internal Sampler functions.
Fixed minor bug where the cache length was calculated by an additional
full frame instead of a single fractional subframe in order to include
the center position on top of the filter widths.

This change results in small performance gains in SincSampler by up to
~5% in all devices, whereas ~1 microsecond performance regression in the
mixer creation time, which is likely caused by the additional shim layer
that is introduced to create a `SincSampler` internally inside the old
`Mixer` creation code of audio_core (expected to be temporary).

Bug: 87651

Multiply: audio-libprocessing-unittests
Multiply: audio_core_unittests
Multiply: audio_mixer_unittests
Multiply: audio-core-api-pipeline-tests
Multiply: audio-core-fidelity-test
Multiply: audio_fidelity_tests
Multiply: audio_core_fidelity_tests

Change-Id: Id268065b58c2f1ae9b60bd4621ee1aa9081cc6a5
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/695491
Commit-Queue: Alper Gungormusler <alperg@google.com>
Reviewed-by: Tom Bergan <tombergan@google.com>