test_server: Add utils to record from DUT headphone
Add two handy functions to connect audio path and copy the file from
Chameleon to local.
Example usage:
>>>ConnectCrosToLineIn()
>>>p.StartCapturingAudio(6)
(do someting on DUT to play audio to headphone)
>>>s = p.StopCapturingAudio(6)
>>>GetAndConvertRecordedFile(s[0])
Then the recorded raw file and wav file will be in current directory.
BUG=None
TEST=Follow above example.
Change-Id: I080618b2b43a349e8b0534b58eb57c6a187b3673
Reviewed-on: https://chromium-review.googlesource.com/412602
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>
diff --git a/utils/test_server b/utils/test_server
index 2a4857f..c775112 100755
--- a/utils/test_server
+++ b/utils/test_server
@@ -8,8 +8,10 @@
import argparse
import code
import logging
+import os
import readline
import rlcompleter
+import subprocess
import xmlrpclib
@@ -43,11 +45,13 @@
hdmi_port, hdmi_port)
-def StartInteractiveShell(p):
+def StartInteractiveShell(p, options):
"""Starts an interactive shell.
Args:
p: The xmlrpclib.ServerProxy to chameleond.
+ options: The namespace from argparse.
+
"""
vars = globals()
vars.update(locals())
@@ -73,6 +77,40 @@
return parser.parse_args()
+def GetAndConvertRecordedFile(remote_path):
+ """Gets recorded file and converts it into a wav file.
+
+ A helper function to get recorded file from Chameleon host and do
+ file format conversion from 32 bit, 48000 rate, 8 channel raw file
+ to 2 channel wav file.
+
+ E.g.
+ >>> p.StartCapturingAudio(6)
+ >>> s = p.StopCapturingAudio(6)
+ >>> GetAndConvertRecordedFile(s[0])
+
+ The recorded raw file and converted wav file will be in current
+ directory.
+
+ Args:
+ remote_path: The file to copy from Chameleon host.
+
+ """
+ basename = os.path.basename(remote_path)
+ # options is already in the namespace.
+ subprocess.check_call(
+ ['scp', 'root@%s:%s' % (options.host, remote_path), basename])
+ subprocess.check_call(
+ ['sox', '-b', '32', '-r', '48000', '-c', '8', '-e', 'signed',
+ basename, '-c', '2', basename + '.wav'])
+
+
+def ConnectCrosToLineIn():
+ """Connects a audio bus path from Cros headphone to Chameleon LineIn."""
+ p.AudioBoardConnect(1, 'Cros device headphone')
+ p.AudioBoardConnect(1, 'Chameleon FPGA line-in')
+
+
def Main():
"""The Main program."""
logging.basicConfig(
@@ -85,7 +123,7 @@
logging.info('Connected to %s with MAC address %s',
address, proxy.GetMacAddress())
ShowMessages(proxy)
- StartInteractiveShell(proxy)
+ StartInteractiveShell(proxy, options)
if __name__ == '__main__':
