50 lines
2 KiB
Python
50 lines
2 KiB
Python
import json
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import os
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import subprocess
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from django.core.management.base import BaseCommand
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from django.conf import settings
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from ...render import compose, render
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class Command(BaseCommand):
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help = 'genrate kdenlive porject and render'
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def add_arguments(self, parser):
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parser.add_argument('--prefix', action='store', dest='prefix', default="/srv/t_for_time", help='prefix to build clips in')
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parser.add_argument('--duration', action='store', dest='duration', default="150", help='target duration in seconds')
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parser.add_argument('--offset', action='store', dest='offset', default="1024", help='inital offset in pi')
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parser.add_argument('--no-video', action='store_true', dest='no_video', default=False, help='don\'t render video')
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def handle(self, **options):
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prefix = options['prefix']
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target = int(options['duration'])
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base = int(options['offset'])
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with open(os.path.join(prefix, "clips.json")) as fd:
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clips = json.load(fd)
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scene = compose(clips, target=target, base=base)
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timelines = render(prefix, scene, 'scene-%s-' % base)
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with open(os.path.join(prefix, 'scene-%s.json' % base), 'w') as fd:
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json.dump(scene, fd, indent=2, ensure_ascii=False)
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if not options['no_video']:
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for timeline in timelines:
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ext = '.mp4'
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if '-audio.kdenlive' in timeline:
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ext = '.wav'
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cmd = [
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'xvfb-run', '-a',
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'melt', timeline,
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'-consumer', 'avformat:%s' % timeline.replace('.kdenlive', ext)
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]
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subprocess.call(cmd)
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if ext == '.wav':
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cmd = [
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'ffmpeg', '-i',
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timeline.replace('.kdenlive', ext),
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timeline.replace('.kdenlive', '.mp4')
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]
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subprocess.call(cmd)
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os.unlink(timeline.replace('.kdenlive', ext))
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