131 lines
3.6 KiB
Python
131 lines
3.6 KiB
Python
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# $Id$
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# Quality test of media calls.
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# - UA1 calls UA2
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# - UA1 plays a file until finished to be streamed to UA2
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# - UA2 records from stream
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# - Apply PESQ to played file (reference) and recorded file (degraded)
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#
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# File should be:
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# - naming: xxxxxx.CLOCK_RATE.wav, e.g: test1.8.wav
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# - clock-rate of those files can only be 8khz or 16khz
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import time
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import imp
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import sys
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import re
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import subprocess
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import inc_const as const
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from inc_cfg import *
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# Load configuration
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cfg_file = imp.load_source("cfg_file", sys.argv[2])
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# PESQ configs
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# PESQ_THRESHOLD specifies the minimum acceptable PESQ MOS value, so test can be declared successful
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PESQ = "tools/pesq.exe"
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PESQ_THRESHOLD = 1.0
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# UserData
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class mod_pesq_user_data:
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# Sample rate option for PESQ
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pesq_sample_rate_opt = ""
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# Input/Reference filename
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input_filename = ""
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# Output/Degraded filename
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output_filename = ""
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# Test body function
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def test_func(t, user_data):
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# module debugging purpose
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#user_data.pesq_sample_rate_opt = "+16000"
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#user_data.input_filename = "wavs/input.16.wav"
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#user_data.output_filename = "wavs/tmp.16.wav"
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#return
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ua1 = t.process[0]
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ua2 = t.process[1]
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# Get conference clock rate of UA2 for PESQ sample rate option
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ua2.send("cl")
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clock_rate_line = ua2.expect("Port \#00\[\d+KHz")
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if (clock_rate_line == None):
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raise TestError("Failed getting")
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clock_rate = re.match("Port \#00\[(\d+)KHz", clock_rate_line).group(1)
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user_data.pesq_sample_rate_opt = "+" + clock_rate + "000"
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# Get input file name
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ua1.sync_stdout()
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ua1.send("dc")
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line = ua1.expect(const.MEDIA_PLAY_FILE)
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user_data.input_filename = re.compile(const.MEDIA_PLAY_FILE).match(line).group(1)
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# Get output file name
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ua2.sync_stdout()
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ua2.send("dc")
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line = ua2.expect(const.MEDIA_REC_FILE)
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user_data.output_filename = re.compile(const.MEDIA_REC_FILE).match(line).group(1)
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# Find appropriate clock rate for the input file
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clock_rate = re.compile(".+(\.\d+\.wav)$").match(user_data.output_filename)
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if (clock_rate==None):
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raise TestError("Cannot compare input & output, incorrect output filename format")
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user_data.input_filename = re.sub("\.\d+\.wav$", clock_rate.group(1), user_data.input_filename)
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time.sleep(1)
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ua1.sync_stdout()
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ua2.sync_stdout()
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# UA1 making call
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ua1.send("m")
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ua1.send(t.inst_params[1].uri)
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ua1.expect(const.STATE_CALLING)
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# Auto answer, auto play, auto hangup
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# Just wait for call disconnected
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if ua1.expect(const.STATE_CONFIRMED, False)==None:
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raise TestError("Call failed")
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ua2.expect(const.STATE_CONFIRMED)
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while True:
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line = ua2.proc.stdout.readline()
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if line == "":
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raise TestError(ua2.name + ": Premature EOF")
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# Search for disconnected text
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if re.search(const.STATE_DISCONNECTED, line) != None:
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break
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# Post body function
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def post_func(t, user_data):
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endpt = t.process[0]
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# Execute PESQ
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fullcmd = PESQ + " " + user_data.pesq_sample_rate_opt + " " + user_data.input_filename + " " + user_data.output_filename
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endpt.trace("Popen " + fullcmd)
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pesq_proc = subprocess.Popen(fullcmd, stdout=subprocess.PIPE, universal_newlines=True)
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pesq_out = pesq_proc.communicate()
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# Parse ouput
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mo_pesq_out = re.compile("Prediction\s+:\s+PESQ_MOS\s+=\s+(.+)\s*").search(pesq_out[0])
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if (mo_pesq_out == None):
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raise TestError("Failed to fetch PESQ result")
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# Evaluate the similarity value
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pesq_res = mo_pesq_out.group(1)
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if (pesq_res >= PESQ_THRESHOLD):
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endpt.trace("Success, PESQ result=" + pesq_res)
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else:
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endpt.trace("Failed, PESQ result=" + pesq_res)
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raise TestError("WAV seems to be degraded badly")
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# Here where it all comes together
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test = cfg_file.test_param
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test.test_func = test_func
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test.post_func = post_func
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test.user_data = mod_pesq_user_data()
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