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Author SHA1 Message Date
Judy Hsiao
dbd67e522a audio_streams_conformance_test: support playback test for cras_stream 
Support playback test for cras_stream.
It does not support `cargo build --features=chromeos` to enable
the libcras support due to the sys_util dependency of libcras.

The output result is like:

==
audio_streams_conformance_test -P cras --iterations 100

Playback Source: CRAS
Channels: 2
Format: S16LE
Sample rate: 48000 frames/s
Buffer size: 240 frames
Iterations: 100

Cold start latency: 239.692005ms
Records count: 100
[Step] min: 4.68 ms, max: 65.29 ms, average: 5.61 ms, standard
deviation: 6.03 ms.
[Linear Regression] rate: 47576.23 frames/s, standard error: 284.42

BUG=b:238038707
TEST=emerge-${BOARD} audio_streams_conformance_test
TEST=audio_streams_conformance_test -P cras

Change-Id: I2547df7b15cd36adb5452ab09d2a38e417b04dbf
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3864013
Tested-by: Judy Hsiao <judyhsiao@google.com>
Commit-Queue: Judy Hsiao <judyhsiao@google.com>
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Auto-Submit: Judy Hsiao <judyhsiao@google.com>
 2022-09-02 01:24:20 +00:00
Judy Hsiao
df71d99018 audio_streams_conformance_test: add playback test for NoopStream 
The first version of audio_streams_conformance_test.
It is used to test if the implementation of
audio_streams::AsyncPlaybackBufferStream is correct.

This version only supports the playback test of NoopStream.
It prints the following information for NoopStream.
==

Playback Source: NoopStream
Channels: 2
Format: S16LE
Sample rate: 48000 frames/s
Buffer size: 240 frames
Iterations: 10

Cold start latency: 3.89µs
Records count: 10
[Step] min: 4.94 ms, max: 5.15 ms, average: 5.01 ms,
standard deviation: 0.06 ms.
[Linear Regression] rate: 47916.19 frames/s, standard error: 2.0

BUG=b:238038707
TEST=cargo run

Change-Id: Ifca7dfd35473ffd75856a27e2c6aa1555eba7576
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3805090
Tested-by: Judy Hsiao <judyhsiao@google.com>
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Commit-Queue: Chih-Yang Hsia <paulhsia@chromium.org>
Auto-Submit: Judy Hsiao <judyhsiao@google.com>
 2022-08-22 08:17:59 +00:00