single video render
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parent
2a2516bff9
commit
95a41fc2e2
2 changed files with 131 additions and 5 deletions
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@ -16,6 +16,9 @@ class Command(BaseCommand):
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parser.add_argument('--duration', action='store', dest='duration', default="3600", help='target duration of all fragments 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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parser.add_argument('--single-file', action='store_true', dest='single_file', default=False, help='render to single video')
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parser.add_argument('--keep-audio', action='store_true', dest='keep_audio', default=False, help='keep independent audio tracks')
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parser.add_argument('--debug', action='store_true', dest='debug', default=False, help='output more info')
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def handle(self, **options):
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render_all(options)
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133
render.py
133
render.py
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@ -313,6 +313,9 @@ def compose(clips, target=150, base=1024, voice_over=None):
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return scene, used
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def get_scene_duration(scene):
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if isinstance(scene, str):
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with open(scene) as fd:
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scene = json.load(fd)
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duration = 0
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for key, value in scene.items():
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for name, clips in value.items():
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@ -325,8 +328,6 @@ def get_offset_duration(prefix):
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for root, folders, files in os.walk(prefix):
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for f in files:
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if f == 'scene.json':
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path = os.path.join(root, f)
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scene = json.load(open(path))
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duration += get_scene_duration(scene)
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return duration
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@ -414,6 +415,8 @@ def get_fragments(clips, voice_over, prefix):
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return fragments
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def render_timeline(options):
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def render_all(options):
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prefix = options['prefix']
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duration = int(options['duration'])
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@ -472,7 +475,7 @@ def render_all(options):
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scene_json = json.dumps(scene, indent=2, ensure_ascii=False)
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write_if_new(os.path.join(fragment_prefix, 'scene.json'), scene_json)
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if not options['no_video']:
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if not options['no_video'] and not options["single_file"]:
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for timeline in timelines:
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print(timeline)
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ext = '.mp4'
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@ -502,8 +505,8 @@ def render_all(options):
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subprocess.call(cmd)
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os.unlink(timeline.replace('.kdenlive', ext))
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fragment_prefix = Path(fragment_prefix)
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cmds = []
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fragment_prefix = Path(fragment_prefix)
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for src, out1, out2 in (
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("audio-front.wav", "fl.wav", "fr.wav"),
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("audio-center.wav", "fc.wav", "lfe.wav"),
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@ -547,7 +550,8 @@ def render_all(options):
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fragment_prefix / "back-audio.mp4",
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])
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for cmd in cmds:
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#print(" ".join([str(x) for x in cmd]))
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if options["debug"]:
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print(" ".join([str(x) for x in cmd]))
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subprocess.call(cmd)
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for a, b in (
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@ -562,6 +566,10 @@ def render_all(options):
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sys.exit(-1)
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shutil.move(fragment_prefix / "back-audio.mp4", fragment_prefix / "back.mp4")
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shutil.move(fragment_prefix / "front-5.1.mp4", fragment_prefix / "front.mp4")
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if options["keep_audio"]:
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shutil.move(fragment_prefix / "audio-center.wav", fragment_prefix / "vocals.wav")
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shutil.move(fragment_prefix / "audio-front.wav", fragment_prefix / "foley.wav")
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shutil.move(fragment_prefix / "audio-back.wav", fragment_prefix / "original.wav")
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for fn in (
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"audio-5.1.mp4",
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"audio-center.wav", "audio-rear.wav",
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@ -572,6 +580,109 @@ def render_all(options):
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if os.path.exists(fn):
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os.unlink(fn)
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if options["single_file"]:
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cmds = []
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base_prefix = Path(base_prefix)
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for timeline in (
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"front",
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"back",
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"audio-back",
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"audio-center",
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"audio-front",
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"audio-rear",
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):
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timelines = list(sorted(glob('%s/*/%s.kdenlive' % (base_prefix, timeline))))
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ext = '.mp4'
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if '/audio' in timelines[0]:
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ext = '.wav'
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out = base_prefix / (timeline + ext)
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cmd = [
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'xvfb-run', '-a',
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'melt'
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] + timelines + [
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'-quiet',
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'-consumer', 'avformat:%s' % out,
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]
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if ext == '.wav':
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cmd += ['vn=1']
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else:
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cmd += ['an=1']
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cmd += ['vcodec=libx264', 'x264opts=keyint=1', 'crf=15']
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cmds.append(cmd)
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for src, out1, out2 in (
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("audio-front.wav", "fl.wav", "fr.wav"),
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("audio-center.wav", "fc.wav", "lfe.wav"),
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("audio-rear.wav", "bl.wav", "br.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", base_prefix / 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]", base_prefix / out1,
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"-map", "[right]", base_prefix / 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", base_prefix / "fl.wav",
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"-i", base_prefix / "fr.wav",
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"-i", base_prefix / "fc.wav",
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"-i", base_prefix / "lfe.wav",
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"-i", base_prefix / "bl.wav",
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"-i", base_prefix / "br.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]", "-c:a", "aac", base_prefix / "audio-5.1.mp4"
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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", base_prefix / "front.mp4",
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"-i", base_prefix / "audio-5.1.mp4",
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"-c", "copy",
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base_prefix / "front-5.1.mp4",
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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", base_prefix / "back.mp4",
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"-i", base_prefix / "audio-back.wav",
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"-c:v", "copy",
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base_prefix / "back-audio.mp4",
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])
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for cmd in cmds:
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if options["debug"]:
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print(" ".join([str(x) for x in cmd]))
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subprocess.call(cmd)
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for a, b in (
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("back-audio.mp4", "back.mp4"),
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("front-5.1.mp4", "back.mp4"),
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):
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duration_a = ox.avinfo(str(base_prefix / a))['duration']
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duration_b = ox.avinfo(str(base_prefix / b))['duration']
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if duration_a != duration_b:
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print('!!', duration_a, base_prefix / a)
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print('!!', duration_b, base_prefix / b)
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sys.exit(-1)
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shutil.move(base_prefix / "back-audio.mp4", base_prefix / "back.mp4")
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shutil.move(base_prefix / "front-5.1.mp4", base_prefix / "front.mp4")
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if options["keep_audio"]:
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shutil.move(base_prefix / "audio-center.wav", base_prefix / "vocals.wav")
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shutil.move(base_prefix / "audio-front.wav", base_prefix / "foley.wav")
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shutil.move(base_prefix / "audio-back.wav", base_prefix / "original.wav")
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for fn in (
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"audio-5.1.mp4",
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"audio-center.wav", "audio-rear.wav",
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"audio-front.wav", "audio-back.wav", "back-audio.mp4",
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"fl.wav", "fr.wav", "fc.wav", "lfe.wav", "bl.wav", "br.wav",
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):
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fn = base_prefix / fn
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if os.path.exists(fn):
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os.unlink(fn)
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join_subtitles(base_prefix)
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print("Duration - Target: %s Actual: %s" % (target_position, position))
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print(json.dumps(dict(stats), sort_keys=True, indent=2))
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with open(_cache, "w") as fd:
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@ -727,3 +838,15 @@ def render_infinity(options):
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with open(state_f + "~", "w") as fd:
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json.dump(state, fd, indent=2)
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shutil.move(state_f + "~", state_f)
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def join_subtitles(base_prefix):
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subtitles = list(sorted(glob('%s/*/front.srt' % base_prefix)))
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data = []
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position = 0
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for srt in subtitles:
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scene = srt.replace('front.srt', 'scene.json')
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data += ox.srt.load(srt, offset=position)
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position += get_scene_duration(scene)
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with open(base_prefix / 'front.srt', 'wb') as fd:
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fd.write(ox.srt.encode(data))
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