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2 commits
0d5a6cb6ba ... bb22ffbaae

Author SHA1 Message Date
j
bb22ffbaae add stereo downmix 2025-05-10 10:04:25 +01:00
j
824170afb4 check front 2025-05-08 08:09:25 +01:00
3 changed files with 31 additions and 10 deletions
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1
management/commands/infinity.py
View file

@ -16,6 +16,7 @@ class Command(BaseCommand):
parser.add_argument('--duration', action='store', dest='duration', default="3600", help='target duration of all fragments in seconds')
parser.add_argument('--single-file', action='store_true', dest='single_file', default=False, help='render to single video')
parser.add_argument('--keep-audio', action='store_true', dest='keep_audio', default=False, help='keep independent audio tracks')
parser.add_argument('--stereo-downmix', action='store_true', dest='stereo_downmix', default=False, help='stereo downmix')
parser.add_argument('--debug', action='store_true', dest='debug', default=False, help='output more info')
def handle(self, **options):

1
management/commands/render.py
View file

@ -18,6 +18,7 @@ class Command(BaseCommand):
parser.add_argument('--no-video', action='store_true', dest='no_video', default=False, help='don\'t render video')
parser.add_argument('--single-file', action='store_true', dest='single_file', default=False, help='render to single video')
parser.add_argument('--keep-audio', action='store_true', dest='keep_audio', default=False, help='keep independent audio tracks')
parser.add_argument('--stereo-downmix', action='store_true', dest='stereo_downmix', default=False, help='stereo downmix')
parser.add_argument('--debug', action='store_true', dest='debug', default=False, help='output more info')
def handle(self, **options):

39
render.py
View file

@ -575,19 +575,37 @@ def render_all(options):
"-filter_complex", "[0:a][1:a][2:a][3:a][4:a][5:a]amerge=inputs=6[a]",
"-map", "[a]", "-c:a", "aac", fragment_prefix / "audio-5.1.mp4"
])
audio_front = "audio-5.1.mp4"
audio_back = "audio-back.wav"
copy = '-c'
if options["stereo_downmix"]:
cmds.append([
"ffmpeg", "-y",
"-nostats", "-loglevel", "error",
"-i", fragment_prefix / "audio-front.wav",
"-i", fragment_prefix / "audio-center.wav",
"-i", fragment_prefix / "audio-rear.wav",
"-i", fragment_prefix / audio_back,
"-filter_complex", "[0:a][1:a][2:a][3:a]amerge=inputs=2[a]",
"-map", "[a]", '-ac', '2', fragment_prefix / "audio-stereo.wav"
])
audio_front = "audio-stereo.wav"
audio_back = "audio-stereo.wav"
copy = '-c:v'
cmds.append([
"ffmpeg", "-y",
"-nostats", "-loglevel", "error",
"-i", fragment_prefix / "front.mp4",
"-i", fragment_prefix / "audio-5.1.mp4",
"-c", "copy",
fragment_prefix / "front-5.1.mp4",
"-i", fragment_prefix / audio_front,
copy, "copy",
fragment_prefix / "front-mixed.mp4",
])
cmds.append([
"ffmpeg", "-y",
"-nostats", "-loglevel", "error",
"-i", fragment_prefix / "back.mp4",
"-i", fragment_prefix / "audio-back.wav",
"-i", fragment_prefix / audio_back,
"-c:v", "copy",
fragment_prefix / "back-audio.mp4",
])
@ -598,7 +616,7 @@ def render_all(options):
for a, b in (
("back-audio.mp4", "back.mp4"),
("front-5.1.mp4", "back.mp4"),
("front-mixed.mp4", "front.mp4"),
):
duration_a = ox.avinfo(str(fragment_prefix / a))['duration']
duration_b = ox.avinfo(str(fragment_prefix / b))['duration']
@ -607,7 +625,7 @@ def render_all(options):
print('!!', duration_b, fragment_prefix / b)
sys.exit(-1)
shutil.move(fragment_prefix / "back-audio.mp4", fragment_prefix / "back.mp4")
shutil.move(fragment_prefix / "front-5.1.mp4", fragment_prefix / "front.mp4")
shutil.move(fragment_prefix / "front-mixed.mp4", fragment_prefix / "front.mp4")
if options["keep_audio"]:
shutil.move(fragment_prefix / "audio-center.wav", fragment_prefix / "vocals.wav")
shutil.move(fragment_prefix / "audio-front.wav", fragment_prefix / "foley.wav")
@ -617,6 +635,7 @@ def render_all(options):
"audio-center.wav", "audio-rear.wav",
"audio-front.wav", "audio-back.wav", "back-audio.mp4",
"fl.wav", "fr.wav", "fc.wav", "lfe.wav", "bl.wav", "br.wav",
"audio-stereo.wav",
):
fn = fragment_prefix / fn
if os.path.exists(fn):
@ -680,7 +699,7 @@ def render_all(options):
"-i", base_prefix / "front.mp4",
"-i", base_prefix / "audio-5.1.mp4",
"-c", "copy",
base_prefix / "front-5.1.mp4",
base_prefix / "front-mixed.mp4",
])
cmds.append([
"ffmpeg", "-y",
@ -697,7 +716,7 @@ def render_all(options):
for a, b in (
("back-audio.mp4", "back.mp4"),
("front-5.1.mp4", "back.mp4"),
("front-mixed.mp4", "back.mp4"),
):
duration_a = ox.avinfo(str(base_prefix / a))['duration']
duration_b = ox.avinfo(str(base_prefix / b))['duration']
@ -706,7 +725,7 @@ def render_all(options):
print('!!', duration_b, base_prefix / b)
sys.exit(-1)
shutil.move(base_prefix / "back-audio.mp4", base_prefix / "back.mp4")
shutil.move(base_prefix / "front-5.1.mp4", base_prefix / "front.mp4")
shutil.move(base_prefix / "front-mixed.mp4", base_prefix / "front.mp4")
if options["keep_audio"]:
shutil.move(base_prefix / "audio-center.wav", base_prefix / "vocals.wav")
shutil.move(base_prefix / "audio-front.wav", base_prefix / "foley.wav")
@ -848,7 +867,7 @@ def render_infinity(options):
"max-items": 30,
"no_video": False,
}
for key in ("prefix", "duration", "debug", "single_file", "keep_audio"):
for key in ("prefix", "duration", "debug", "single_file", "keep_audio", "stereo_downmix"):
state[key] = options[key]
while True: