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collect-orth-symbols.py
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collect-orth-symbols.py
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#!/usr/bin/env python
import os
import sys
import rnn
from Log import log
from Config import Config
import argparse
from Util import hms, human_size, parse_orthography, parse_orthography_into_symbols
import gzip
import xml.etree.ElementTree as etree
from pprint import pprint
import wave
import time
def found_sub_seq(sub_seq, seq):
# Very inefficient naive implementation:
for i in range(len(seq)):
if seq[i:i+len(sub_seq)] == sub_seq:
return True
return False
def iter_dataset(dataset, options, callback):
"""
:type dataset: Dataset.Dataset
"""
dataset.init_seq_order(epoch=1)
assert "orth" in dataset.get_target_list()
seq_idx = 0
while dataset.is_less_than_num_seqs(seq_idx):
dataset.load_seqs(seq_idx, seq_idx)
frame_len = dataset.get_seq_length(seq_idx)["data"]
orth = dataset.get_targets("orth", seq_idx)
callback(frame_len=frame_len, orth=orth)
seq_idx += 1
def get_wav_time_len(filename):
f = wave.open(filename)
num_frames = f.getnframes()
framerate = f.getframerate()
f.close()
return num_frames / float(framerate)
def iter_bliss(filename, options, callback):
corpus_file = open(filename, 'rb')
if filename.endswith(".gz"):
corpus_file = gzip.GzipFile(fileobj=corpus_file)
def getelements(tag):
"""Yield *tag* elements from *filename_or_file* xml incrementaly."""
context = iter(etree.iterparse(corpus_file, events=('start', 'end')))
_, root = next(context) # get root element
tree = [root]
for event, elem in context:
if event == "start":
tree += [elem]
elif event == "end":
assert tree[-1] is elem
tree = tree[:-1]
if event == 'end' and elem.tag == tag:
yield tree, elem
root.clear() # free memory
time_via_wav = False
for tree, elem in getelements("segment"):
if options.collect_time:
start = float(elem.attrib.get('start', 0))
if "end" in elem.attrib:
end = float(elem.attrib['end'])
else:
if not time_via_wav:
time_via_wav = True
print >>log.v3, "Time will be read from WAV recordings. Can be slow. Maybe use `--collect_time False`."
rec_elem = tree[-1]
assert rec_elem.tag == "recording"
wav_filename = rec_elem.attrib["audio"]
end = get_wav_time_len(wav_filename)
assert end > start
frame_len = (end - start) * (1000.0 / options.frame_time)
else:
frame_len = 0
elem_orth = elem.find("orth")
orth_raw = elem_orth.text # should be unicode
orth_split = orth_raw.split()
orth = " ".join(orth_split)
callback(frame_len=frame_len, orth=orth)
def iter_txt(filename, options, callback):
f = open(filename, 'rb')
if filename.endswith(".gz"):
f = gzip.GzipFile(fileobj=f)
if options.collect_time:
print >> log.v3, "No time-info in txt."
options.collect_time = False
for l in f:
l = l.strip()
if not l: continue
callback(frame_len=0, orth=l)
def collect_stats(options, iter_corpus):
"""
:param options: argparse.Namespace
"""
orth_symbols_filename = options.output
if orth_symbols_filename:
assert not os.path.exists(orth_symbols_filename)
class Stats:
count = 0
process_last_time = time.time()
total_frame_len = 0
total_orth_len = 0
orth_syms_set = set()
if options.add_numbers:
Stats.orth_syms_set.update(map(chr, range(ord("0"), ord("9") + 1)))
if options.add_lower_alphabet:
Stats.orth_syms_set.update(map(chr, range(ord("a"), ord("z") + 1)))
if options.add_upper_alphabet:
Stats.orth_syms_set.update(map(chr, range(ord("A"), ord("Z") + 1)))
def cb(frame_len, orth):
if frame_len >= options.max_seq_frame_len:
return
orth_syms = parse_orthography(orth)
if len(orth_syms) >= options.max_seq_orth_len:
return
Stats.count += 1
Stats.total_frame_len += frame_len
if options.dump_orth_syms:
print >> log.v3, "Orth:", "".join(orth_syms)
if options.filter_orth_sym:
if options.filter_orth_sym in orth_syms:
print >> log.v3, "Found orth:", "".join(orth_syms)
if options.filter_orth_syms_seq:
filter_seq = parse_orthography_into_symbols(options.filter_orth_syms_seq)
if found_sub_seq(filter_seq, orth_syms):
print >> log.v3, "Found orth:", "".join(orth_syms)
Stats.orth_syms_set.update(orth_syms)
Stats.total_orth_len += len(orth_syms)
# Show some progress if it takes long.
if time.time() - Stats.process_last_time > 2:
Stats.process_last_time = time.time()
if options.collect_time:
print >> log.v3, "Collect process, total frame len so far:", hms(Stats.total_frame_len * (options.frame_time / 1000.0))
else:
print >> log.v3, "Collect process, total orth len so far:", human_size(Stats.total_orth_len)
iter_corpus(cb)
if options.remove_symbols:
filter_syms = parse_orthography_into_symbols(options.remove_symbols)
Stats.orth_syms_set -= set(filter_syms)
if options.collect_time:
print >> log.v3, "Total frame len:", Stats.total_frame_len, "time:", hms(Stats.total_frame_len * (options.frame_time / 1000.0))
else:
print >> log.v3, "No time stats (--collect_time False)."
print >> log.v3, "Total orth len:", Stats.total_orth_len, "(%s)" % human_size(Stats.total_orth_len),
if options.collect_time:
print >> log.v3, "fraction:", float(Stats.total_orth_len) / Stats.total_frame_len
else:
print >> log.v3, ""
print >> log.v3, "Average orth len:", float(Stats.total_orth_len) / Stats.count
print >> log.v3, "Num symbols:", len(Stats.orth_syms_set)
if orth_symbols_filename:
orth_syms_file = open(orth_symbols_filename, "wb")
for orth_sym in sorted(Stats.orth_syms_set):
orth_syms_file.write("%s\n" % unicode(orth_sym).encode("utf8"))
orth_syms_file.close()
print >> log.v3, "Wrote orthography symbols to", orth_symbols_filename
else:
print >> log.v3, "Provide --output to save the symbols."
def init(configFilename=None):
rnn.initBetterExchook()
rnn.initThreadJoinHack()
if configFilename:
rnn.initConfig(configFilename, commandLineOptions=[])
rnn.initLog()
else:
log.initialize()
print >> log.v3, "CRNN collect-orth-symbols starting up."
rnn.initFaulthandler()
if configFilename:
rnn.initConfigJsonNetwork()
rnn.initData()
rnn.printTaskProperties()
def is_bliss(filename):
try:
corpus_file = open(filename, 'rb')
if filename.endswith(".gz"):
corpus_file = gzip.GzipFile(fileobj=corpus_file)
context = iter(etree.iterparse(corpus_file, events=('start', 'end')))
_, root = next(context) # get root element
return True
except IOError: # 'Not a gzipped file' or so
pass
except etree.ParseError: # 'syntax error' or so
pass
return False
def is_crnn_config(filename):
if filename.endswith(".gz"):
return False
try:
config = Config()
config.load_file(filename)
return True
except Exception:
pass
return False
def main(argv):
argparser = argparse.ArgumentParser(description='Collect orth symbols.')
argparser.add_argument('input', help="CRNN config, Corpus Bliss XML or just txt-data")
argparser.add_argument('--frame_time', type=int, default=10, help='time (in ms) per frame. not needed for Corpus Bliss XML')
argparser.add_argument('--collect_time', type=int, default=True, help="collect time info. can be slow in some cases")
argparser.add_argument('--dump_orth_syms', action='store_true', help="dump all orthographies")
argparser.add_argument('--filter_orth_sym', help="dump orthographies which match this filter")
argparser.add_argument('--filter_orth_syms_seq', help="dump orthographies which match this filter")
argparser.add_argument('--max_seq_frame_len', type=int, default=float('inf'), help="collect only orthographies <= this max frame len")
argparser.add_argument('--max_seq_orth_len', type=int, default=float('inf'), help="collect only orthographies <= this max orth len")
argparser.add_argument('--add_numbers', type=int, default=True, help="add chars 0-9 to orth symbols")
argparser.add_argument('--add_lower_alphabet', type=int, default=True, help="add chars a-z to orth symbols")
argparser.add_argument('--add_upper_alphabet', type=int, default=True, help="add chars A-Z to orth symbols")
argparser.add_argument('--remove_symbols', default="(){}$", help="remove these chars from orth symbols")
argparser.add_argument('--output', help='where to store the symbols (default: dont store)')
args = argparser.parse_args(argv[1:])
bliss_filename = None
crnn_config_filename = None
txt_filename = None
if is_bliss(args.input):
bliss_filename = args.input
elif is_crnn_config(args.input):
crnn_config_filename = args.input
else: # treat just as txt
txt_filename = args.input
init(configFilename=crnn_config_filename)
if bliss_filename:
iter_corpus = lambda cb: iter_bliss(bliss_filename, options=args, callback=cb)
elif txt_filename:
iter_corpus = lambda cb: iter_txt(txt_filename, options=args, callback=cb)
else:
iter_corpus = lambda cb: iter_dataset(rnn.train_data, options=args, callback=cb)
collect_stats(args, iter_corpus)
if crnn_config_filename:
rnn.finalize()
if __name__ == '__main__':
main(sys.argv)