86 lines
2.2 KiB
Python
86 lines
2.2 KiB
Python
import os
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import subprocess
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import ox
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import itemlist.models
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import item.models
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from .render_kdenlive import KDEnliveProject, _CACHE
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from .render import default_prefix as root
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def render_music():
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pass
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def render_forest():
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# Stereo Mix, playing on 5.1 rear left/right
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project = KDEnliveProject(root)
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qs = item.models.Item.objects.filter(
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data__type__icontains='Forest'
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).order_by('sort__title')
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for clip in qs:
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src = clip.files.all()[0].data.path
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project.append_clip('A1', {
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"src": src,
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"duration": clip.sort.duration,
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"filter": {
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},
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})
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path = os.path.join(root, "forest.kdenlive")
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with open(path, 'w') as fd:
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fd.write(project.to_xml())
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cmds = []
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cmds.append([
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"melt", "forest.kdenlive", '-quiet', '-consumer', 'avformat:forest.wav'
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])
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info = ox.avinfo('forest.wav')
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cmds.append([
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"ffmpeg", "-y",
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"-nostats", "-loglevel", "error",
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"-f", "lavfi", "-i", "anullsrc=r=48000:cl=mono",
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"-t", str(info["duration"]),
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"forest_silence.wav"
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])
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for src, out1, out2 in (
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('forest.wav', "forest_left.wav", "forest_right.wav"),
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):
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cmds.append([
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"ffmpeg", "-y",
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"-nostats", "-loglevel", "error",
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"-i", src,
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"-filter_complex",
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"[0:0]pan=1|c0=c0[left]; [0:0]pan=1|c0=c1[right]",
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"-map", "[left]", out1,
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"-map", "[right]", out2,
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])
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cmds.append([
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"ffmpeg", "-y",
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"-nostats", "-loglevel", "error",
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"-i", "silence.wav",
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"-i", "silence.wav",
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"-i", "silence.wav",
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"-i", "silence.wav",
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"-i", "forest_left.wav",
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"-i", "forest_right.wav",
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"-filter_complex", "[0:a][1:a][2:a][3:a][4:a][5:a]amerge=inputs=6[a]",
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"-map", "[a]",
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"-ar", "48000",
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"-c:a", "aac", "render/forest-5.1.mp4"
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])
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os.chdir(root)
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for cmd in cmds:
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print(" ".join([str(x) for x in cmd]))
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subprocess.call(cmd)
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for name in (
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"forest.wav",
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"forest_left.wav",
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"forest_right.wav",
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"silence.wav",
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):
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if os.path.exists(name):
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os.unlink(name)
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