(oops, I accidentally replied just to Soeren -- resending this to the list)
Howdy! Here's an updated version of the muxing script. This one muxes the samples, combines the two metadata files, and deals with all of the zip-file stuff for you. I haven't yet implemented the feature of trying to automatically lining up the two sample files. Also, this script is now more narrow in scope -- it only handles the case of muxing two 8-channel files. https://gist.github.com/cellularmitosis/b98a083edaf6023a4d81e4d4268bea14 Cheers! Jason Pepas
A.sr
Description: Binary data
B.sr
Description: Binary data
#!/usr/bin/env python
# mux2x8ch.py: mux two 8-channel srzip files into one 16-channel file.
# Copyright Jason Pepas, 2017. Released under the terms of the MIT License.
import sys
import os
import zipfile
import zlib
import tempfile
import ConfigParser
if len(sys.argv) < 4:
sys.stderr.write("mux2x8ch.py: mux two 8-channel srzip files into a single 16-channel file.\n")
sys.stderr.write("Usage: mux2x8ch.py <input A> <input B> <output>\n")
sys.stderr.write("e.g.: ./mux2x8ch.py A.sr B.sr out.sr\n")
sys.exit(1)
input_fname_A = sys.argv[1]
input_fname_B = sys.argv[2]
out_fname = sys.argv[3]
zin_A = zipfile.ZipFile(input_fname_A, 'r')
zin_B = zipfile.ZipFile(input_fname_B, 'r')
zout = zipfile.ZipFile(out_fname, mode='w', compression=zipfile.ZIP_DEFLATED)
# Check that the two 'version' files match, then copy one to the output
with zin_A.open("version", 'r') as f_A:
with zin_B.open("version", 'r') as f_B:
with tempfile.NamedTemporaryFile() as f_out:
version_A = f_A.read()
version_B = f_B.read()
assert version_A == version_B
f_out.write(version_A)
f_out.flush()
zout.write(f_out.name, "version")
# Merge the two 'metadata' files as best we can
with zin_A.open("metadata", 'r') as f_A:
with zin_B.open("metadata", 'r') as f_B:
with tempfile.NamedTemporaryFile() as f_out:
metadata_A = ConfigParser.ConfigParser()
metadata_A.readfp(f_A)
metadata_B = ConfigParser.ConfigParser()
metadata_B.readfp(f_B)
metadata_A.set('device 1', 'total probes', 16)
metadata_A.set('device 1', 'unitsize', 2)
metadata_A.set('device 1', 'probe9', metadata_B.get('device 1', 'probe1'))
metadata_A.set('device 1', 'probe10', metadata_B.get('device 1', 'probe2'))
metadata_A.set('device 1', 'probe11', metadata_B.get('device 1', 'probe3'))
metadata_A.set('device 1', 'probe12', metadata_B.get('device 1', 'probe4'))
metadata_A.set('device 1', 'probe13', metadata_B.get('device 1', 'probe5'))
metadata_A.set('device 1', 'probe14', metadata_B.get('device 1', 'probe6'))
metadata_A.set('device 1', 'probe15', metadata_B.get('device 1', 'probe7'))
metadata_A.set('device 1', 'probe16', metadata_B.get('device 1', 'probe8'))
metadata_A.write(f_out)
f_out.flush()
zout.write(f_out.name, "metadata")
# Mux the two sample files
with zin_A.open("logic-1-1", 'r') as f_A:
with zin_B.open("logic-1-1", 'r') as f_B:
with tempfile.NamedTemporaryFile() as f_out:
while True:
sample_A = f_A.read(1)
sample_B = f_B.read(1)
if len(sample_A) == 0 or len(sample_B) == 0:
break
f_out.write(sample_A)
f_out.write(sample_B)
f_out.flush()
zout.write(f_out.name, "logic-1-1")
zin_A.close()
zin_B.close()
zout.close()
out.sr
Description: Binary data
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