me/portaudio
Watch
1
0
Fork
You've already forked portaudio
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

updated patest_suggested_vs_streaminfo_latency to support running multiple test iterations from the python script

Browse source
This commit is contained in:
rossb 2011-08-04 13:56:52 +00:00
commit 35073f0c65
2 changed files with 102 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

29
test/patest_suggested_vs_streaminfo_latency.py
View file

@ -13,6 +13,9 @@ import numpy
testExeName = "PATest.exe" # rename to whatever the compiled patest_suggested_vs_streaminfo_latency.c binary is
dataFileName = 'patest_suggested_vs_streaminfo_latency.csv' # code below calls the exe to generate this file
inputDeviceIndex = -1 # -1 means default
inputDeviceIndex = -1 # -1 means default
def loadCsvData( dataFileName ):
params= ""
@ -39,16 +42,28 @@ def loadCsvData( dataFileName ):
result.fullDuplexInputLatency = data[4]
return result;
# run the test with different frames per buffer values:
os.system(testExeName + ' > ' + dataFileName)
framesPerBufferValues = [0]
# powers of two
#for i in range (1,11):
# framesPerBufferValues.append( 2 ^ i )
d = loadCsvData(dataFileName)
# could also test: multiples of 10, random numbers, powers of primes, etc
plot( d.suggestedLatency, d.suggestedLatency )
plot( d.suggestedLatency, d.halfDuplexOutputLatency )
plot( d.suggestedLatency, d.halfDuplexInputLatency )
plot( d.suggestedLatency, d.fullDuplexOutputLatency )
plot( d.suggestedLatency, d.fullDuplexInputLatency )
for framesPerBuffer in framesPerBufferValues:
os.system(testExeName + " -1 -1 " + str(framesPerBuffer) + ' > ' + dataFileName)
d = loadCsvData(dataFileName)
plot( d.suggestedLatency, d.suggestedLatency )
plot( d.suggestedLatency, d.halfDuplexOutputLatency )
plot( d.suggestedLatency, d.halfDuplexInputLatency )
plot( d.suggestedLatency, d.fullDuplexOutputLatency )
plot( d.suggestedLatency, d.fullDuplexInputLatency )
title('PortAudio suggested (requested) vs. resulting (reported) stream latency\n%s'%d.titleInfo)
ylabel('PaStreamInfo::{input,output}Latency (s)')