tree d33f5b3e08a7a9bd7b326cd540749b0bc229cd4e
parent f31e0a7ec12194f57569c9814b6155db1079c55d
author Moja Hsu <mojahsu@google.com> 1482825538 +0800
committer chrome-bot <chrome-bot@chromium.org> 1487571605 -0800

test_server: Add utils to detect continuous 0 from audio data

Add one handy function to detect continous 0 from chameleon. This
function will also save problem samples to .wav file. It can detect for
a very long time by chameleon stream server.
This CL also fixed the lint errors.

Example usage:

  >>> ConnectCrosToLineIn()
  >>> p.StartCapturingAudio(6)

  (do someting on DUT to play
   audio to headphone)

  >>> DetectAudioValue0()

BUG=None
TEST=Test audio_AudioBasicHDMI and audio_AudioBasicHeadphone.
     Test if we can detect the value by HDMI and audiojack interfaces.

Change-Id: I5b20e0cb039c083c823e6f4bb3b6d78e03c88ed5
Reviewed-on: https://chromium-review.googlesource.com/424256
Commit-Ready: Hsu Wei-Cheng <mojahsu@chromium.org>
Tested-by: Hsu Wei-Cheng <mojahsu@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>