75 lines
2.1 KiB
Python
Executable file
75 lines
2.1 KiB
Python
Executable file
#!/usr/bin/python3
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from glob import glob
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import os
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import json
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import shutil
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import subprocess
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def get_videoduration(video):
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cmd = [
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'ffprobe',
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'-show_format',
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'-show_chapters',
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'-show_streams',
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'-print_format', 'json',
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'-i', video
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]
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout, stdin = p.communicate()
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data = json.loads(stdout.decode())
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duration = float([s for s in data['streams'] if 'width' in s][0]['duration']) - 70/60
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return '%0.3f' % duration
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def is_new(xml, mp4):
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if not os.path.exists(mp4):
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return True
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xtime = os.path.getmtime(xml)
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vtime = max(
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os.path.getmtime(mp4),
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os.path.getmtime('text.html'),
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os.path.getmtime('DRONES.json'),
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os.path.getmtime('VOCALS.json'),
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)
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return vtime < xtime
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for xml in sorted(glob('output/*/*.xml')):
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if xml.endswith('.audio.xml'):
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continue
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audio_xml = xml.replace('.xml', '.audio.xml')
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mp4 = xml.replace('.xml', '.mp4')
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mp4_480p = mp4.replace('.mp4', '.480p.mp4')
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pre = mp4 + '.pre.mp4'
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pre_480p = mp4_480p + '.pre.mp4'
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video = mp4 + '.v.mp4'
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audio = mp4 + '.wav'
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if is_new(xml, mp4):
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subprocess.call([
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'qmelt', xml, '-consumer', 'avformat:' + video, 'vcodec=libx264', 'strict=-2'
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])
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duration = get_videoduration(video)
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cmd = [
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'ffmpeg', '-y',
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'-i', video,
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'-c:a', 'copy',
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'-c:v', 'copy',
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'-t', duration,
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'-movflags', '+faststart',
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pre
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]
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subprocess.call(cmd)
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os.unlink(video)
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shutil.move(pre, mp4)
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cmd = [
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'ffmpeg', '-y',
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'-i', mp4,
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'-c:a', 'copy',
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'-vf', 'scale=854:480',
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'-c:v', 'libx264',
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'-preset', 'medium',
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'-b:v', '750k',
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'-profile:v', 'high',
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'-movflags', '+faststart',
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pre_480p
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]
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subprocess.call(cmd)
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shutil.move(pre_480p, mp4_480p)
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