81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
from subprocess import call, Popen, PIPE
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from os import listdir, remove
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from os.path import splitext
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from re import match
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from sys import argv
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from enum import Enum
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from datetime import timedelta
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from math import ceil
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class Stream(Enum):
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AUDIO = 1
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VIDEO = 2
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class File(Enum):
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LIST = 1
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LOOP = 2
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OUTPUT = 3
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def getCmdStdErr(command):
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process = Popen(command, stderr=PIPE, stdout=PIPE)
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out, err = process.communicate()
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return err
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def getDuration(ffprobe_output):
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durationPattern = r'.*Duration:\s(.+),\sstart.*'
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regex = match(durationPattern, str(ffprobe_output))
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duration = regex.groups()[0] if regex else None
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if not duration:
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raise ValueError('Cannot process ffprobe output!')
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return duration
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argv.append('https://coub.com/view/aeeuu') # TODO: remove debug line
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FILES = {Stream.AUDIO: 'audio', Stream.VIDEO: 'video',
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File.LIST: 'list.txt', File.LOOP: 'loop', File.OUTPUT: 'output.mp4'}
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OUTPUT_KEYS = [File.OUTPUT]
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URL = argv[1] if len(argv) > 0 else '' # youtube-dl error message will be shown if ''
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call(('/usr/bin/env', 'youtube-dl', '--extract-audio',
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'--output', '{}.%(ext)s'.format(FILES[Stream.AUDIO]),
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URL))
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call(('/usr/bin/env', 'youtube-dl', '--output', '{}.%(ext)s'.format(FILES[Stream.VIDEO]),
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URL))
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for file in listdir():
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for filename in FILES:
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if match('^{}.*'.format(FILES[filename]), file):
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FILES[filename] = file
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audioData= getDuration(getCmdStdErr(('/usr/bin/env', 'ffprobe', FILES[Stream.AUDIO]))).split(':')
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videoData = getDuration(getCmdStdErr(('/usr/bin/env', 'ffprobe', FILES[Stream.VIDEO]))).split(':')
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audioLen = timedelta(hours=float(audioData[0]), minutes=float(audioData[1]), seconds=float(audioData[2]))
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videoLen = timedelta(hours=float(videoData[0]), minutes=float(videoData[1]), seconds=float(videoData[2]))
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longer = audioLen if audioLen > videoLen else videoLen
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shorter = audioLen if audioLen < videoLen else videoLen
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shorterFile = FILES[Stream.AUDIO] if audioLen < videoLen else FILES[Stream.VIDEO]
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FILES[File.LOOP] += splitext(shorterFile)[1]
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timesLoop = ceil(longer.seconds / shorter.seconds)
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with open(FILES[File.LIST], 'w') as f:
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for i in range(timesLoop):
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print("file '{}'".format(shorterFile), file=f)
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call(('/usr/bin/env', 'ffmpeg', '-f', 'concat', '-i', FILES[File.LIST], '-c', 'copy', FILES[File.LOOP]))
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call(('/usr/bin/env', 'ffmpeg', '-i', FILES[File.LOOP],
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'-i', FILES[Stream.AUDIO],
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'-map', '0', '-map', '1',
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'-c', 'copy', FILES[File.OUTPUT]))
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for key in FILES:
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if key not in OUTPUT_KEYS:
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remove(FILES[key])
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