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Viewing changes to checkbox-old/scripts/gst_pipeline_test

  • Committer: Tarmac
  • Author(s): Brendan Donegan
  • Date: 2013-06-03 11:12:58 UTC
  • mfrom: (2154.2.1 bug1185759)
  • Revision ID: tarmac-20130603111258-1b3m5ydvkf1accts
"[r=zkrynicki][bug=1185759][author=brendan-donegan] automatic merge by tarmac"

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checkbox-old/scripts/gst_pipeline_test
 
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#!/usr/bin/env python3
 
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from argparse import ArgumentParser
 
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import re
 
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import sys
 
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import time
 
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from gi.repository import Gst
 
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from subprocess import check_output
 
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def check_state(device):
 
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    """Checks whether the sink is available for the given device.
 
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    """
 
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    sink_info = check_output(['pacmd', 'list-sinks'],
 
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                             universal_newlines=True)
 
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    data = sink_info.split("\n")
 
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    try:
 
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        device = re.findall(".*name:\s.*%s.*" % device, sink_info)[0].lstrip()
 
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        status = data[data.index("\t" + device) + 3]
 
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    except (IndexError, ValueError):
 
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        print("Failed to find status for device: %s" % device, file=sys.stderr)
 
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        return False
 
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    print("Device: %s %s" % (device.strip(), status.strip()))
 
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    return status 
 
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def main():
 
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    parser = ArgumentParser(description='Simple GStreamer pipeline player')
 
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    parser.add_argument('PIPELINE',
 
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        help='Quoted GStreamer pipeline to launch')
 
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    parser.add_argument('-t', '--timeout',
 
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        type=int, required=True,
 
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        help='Timeout for running the pipeline')
 
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    parser.add_argument('-d', '--device',
 
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        type=str,
 
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        help="Device to check for status")
 
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    args = parser.parse_args()
 
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    Gst.init(None)
 
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    element = Gst.parse_launch(args.PIPELINE)
 
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    element.set_state(Gst.State.PLAYING)
 
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    if args.timeout:
 
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        time.sleep(args.timeout)
 
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    exit_code = 0
 
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    if args.device:
 
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        if not check_state(args.device):
 
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            exit_code = 1
 
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    element.set_state(Gst.State.NULL)
 
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    return exit_code
 
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if __name__ == "__main__":
 
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    sys.exit(main())