149 lines
4.0 KiB
Python
Executable File
149 lines
4.0 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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import sys
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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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vtime = os.path.getmtime(mp4)
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xtime = max(
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os.path.getmtime(xml),
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os.path.getmtime('text.html'),
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os.path.getmtime('encode.py'),
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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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def encode(xml, force=False):
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item_json = xml.replace('.xml', '.json')
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audio_xml = xml.replace('.xml', '.audio.xml')
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vocals_xml = xml.replace('.xml', '.vocals.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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video = mp4 + '.v.mov'
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amix = mp4 + '.amix.mp4'
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audio = mp4 + '.wav'
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vocals = mp4 + '.vocals.wav'
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silence = 'silence_mono.wav'
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left = video + '_left.wav'
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right = video + '_right.wav'
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public_mp4 = 'public/' + mp4.split('/')[-1][0].lower() + mp4.split('/')[-2] + '.1080p.mp4'
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public_mp4_480p = public_mp4.replace('.1080p.mp4', '.480p.mp4')
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if force or is_new(xml, public_mp4):
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cmd = [
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'qmelt', xml, '-consumer',
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'avformat:' + video,
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'vcodec=libx264',
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'acodec=pcm_s16le'
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]
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subprocess.call(cmd)
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duration = get_videoduration(video)
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cmd = [
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'ffmpeg', '-y', '-i', video,
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'-map_channel', '0.1.0', left,
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'-map_channel', '0.1.1', right,
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]
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subprocess.call(cmd)
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cmd = [
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'qmelt', vocals_xml, '-consumer',
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'avformat:' + vocals,
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'acodec=pcm_s16le',
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'ac=1'
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]
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subprocess.call(cmd)
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cmd = [
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'ffmpeg', '-y',
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'-i', left, # FL
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'-i', right, # FR
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'-i', vocals, # FC
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'-i', silence, # LFE
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'-i', vocals, # BL
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'-i', vocals, # BR
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'-filter_complex',
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'[0:0][1:0][2:0][3:0][4:0][5:0] amerge=inputs=6[aout]',
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'-map', "[aout]",
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'-strict', '-2',
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'-c:a', 'aac',
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amix
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]
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subprocess.call(cmd)
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os.unlink(left)
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os.unlink(right)
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os.unlink(vocals)
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cmd = [
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'ffmpeg', '-y',
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'-i', video,
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'-i', amix,
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'-t', duration,
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'-c:a', 'copy',
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'-c:v', 'copy',
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'-map', '0:v:0', '-map', '1:a:0',
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'-movflags', '+faststart',
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mp4
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]
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subprocess.call(cmd)
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os.unlink(video)
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os.unlink(amix)
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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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mp4_480p
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]
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subprocess.call(cmd)
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shutil.move(mp4, public_mp4)
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shutil.move(mp4_480p, public_mp4_480p)
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cmd = [
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'./subtitles.py',
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item_json
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]
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subprocess.call(cmd)
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def encode_all():
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for xml in sorted(glob('output/*/*.xml')):
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parts = xml.split('.')
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if len(parts) > 2 and parts[-2] in (
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'audio',
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'drones',
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'music',
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'source',
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'vocals',
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):
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continue
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encode(xml)
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if __name__ == '__main__':
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if len(sys.argv) == 2:
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encode(sys.argv[1], True)
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else:
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encode_all()
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