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54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
3 years ago
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#!/usr/bin/python3
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import os
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import glob
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import re
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from datetime import datetime, timedelta
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from pytimeparse.timeparse import timeparse
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silences = []
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os.chdir("/srv/recording/silence")
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for s in glob.glob("*.txt"):
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with open(s, 'r') as f:
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t = f.read()
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# parse start time from the filename
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start_of_flac = datetime.strptime(s, "%Y-%m-%d_%H-%M-%S.flac.txt")
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# flacs are not necessarily 1 hour long, but ffmpeg thankfully also writes
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# out some timestamps, so we use the last one to determine the length
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length_of_flac = None
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for l in t.split("\n"):
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m = re.match(r"size=.* time=([0-9:.]+) .*", l)
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if m:
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length_of_flac = timeparse(m.group(1))
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silence_start = None
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for l in t.split("\n"):
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m = re.search(r"silence_start: ([-0-9.]+)", l)
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if m:
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silence_start = float(m.group(1))
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silence_end = length_of_flac # fallback
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m = re.search(r"silence_end: ([-0-9.]+)", l)
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if m:
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silence_end = float(m.group(1))
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silences.append((start_of_flac + timedelta(seconds=silence_start), start_of_flac + timedelta(seconds=silence_end)))
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# reset
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silence_start = None
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silence_end = length_of_flac
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# if there is no "end of silence", ffmpeg does not report it
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if silence_start:
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silences.append((start_of_flac + timedelta(seconds=silence_start), start_of_flac + timedelta(seconds=silence_end)))
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silences = sorted(silences)
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FORMAT="%Y-%m-%d %H:%M:%S"
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for silence_start, silence_end in silences:
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duration = silence_end - silence_start
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print("%s;%s;%d" % (silence_start.strftime(FORMAT), silence_end.strftime(FORMAT), round(duration.total_seconds())))
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