promo/build_video.py · Stepping App

111 lines · python

import json, os, subprocess, shlex
 
ROOT = "/shared/projects/SteppingApp/promo"
SHOTS = f"{ROOT}/shots"
CLIPS = f"{ROOT}/build/clips"
os.makedirs(CLIPS, exist_ok=True)
FPS = 30
W, H = 1920, 1080
def pick(paths):
    for p in paths:
        if os.path.exists(p):
            return p
    return paths[-1]
MONO = pick([
    "/usr/share/fonts/truetype/liberation2/LiberationMono-Bold.ttf",
    "/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf",
    "/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf",
])
SANS = pick([
    "/usr/share/fonts/truetype/liberation2/LiberationSans-Bold.ttf",
    "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf",
])
GOLD = "0xC8A24C"
BONE = "0xF2ECE0"
STAGE = "0x0F0E0C"
 
meta = json.load(open(f"{ROOT}/voiceover/scene_times.json"))
ss = meta["scene_start"]
total = meta["total"]
TAIL = 1.6
 
order = ["s1","s2","s3","s4","s5","s6","s7","s8","s9","s10"]
cfg = {
  "s1": ("hero.png","wide","STEPPING  /  DIVINE NINE STEP CULTURE"),
  "s2": ("cities.png","wide","CHOOSE YOUR CITY"),
  "s3": ("city.png","wide","THE LINE-UP  /  UPCOMING SHOWS"),
  "s4": ("event.png","wide","EVERY SHOW, IN DETAIL"),
  "s5": ("yard.png","tall","THE YARD  /  THE COMMUNITY"),
  "s6": ("profile.png","wide","PROFILES  /  WHO'S WHO"),
  "s7": ("route.png","tall","THE ROUTE  /  PLAN THE TRIP"),
  "s8": ("mobile.png","phone","RIGHT IN YOUR PHONE"),
  "s9": ("hero.png","wide","MORE ON THE WAY"),
  "s10": (None,"end",""),
}
 
def dur(i):
    s = order[i]
    if i < len(order)-1:
        return round(ss[order[i+1]] - ss[s], 3)
    return round(total - ss[s] + TAIL, 3)
 
def esc(t):
    return t.replace(":", "\\:").replace("'", "’").replace(",", "\\,")
 
def caption(text):
    if not text:
        return ""
    t = esc(text)
    return (f",drawtext=fontfile={MONO}:text='{t}':fontcolor={GOLD}:fontsize=30"
            f":x=88:y=h-96:box=1:boxcolor={STAGE}@0.55:boxborderw=22")
 
def run(cmd):
    r = subprocess.run(cmd, shell=True, capture_output=True, text=True)
    if r.returncode != 0:
        print("FFMPEG ERR:\n", r.stderr[-1500:])
        raise SystemExit(1)
 
clip_files = []
for i, s in enumerate(order):
    img, kind, cap = cfg[s]
    d = dur(i)
    out = f"{CLIPS}/{s}.mp4"
    frames = int(round(d*FPS))
    fin = "fade=t=in:st=0:d=0.4,fade=t=out:st=%.3f:d=0.4" % max(d-0.4, 0)
    if kind == "wide":
        z = f"scale=2400:-1,zoompan=z='min(zoom+0.00035,1.06)':d={frames}:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':s={W}x{H}:fps={FPS}"
        vf = f"{z},{fin}{caption(cap)}"
        run(f"ffmpeg -y -loop 1 -t {d} -i {shlex.quote(SHOTS+'/'+img)} -vf \"{vf}\" -r {FPS} -c:v libx264 -pix_fmt yuv420p -an {out}")
    elif kind == "tall":
        vf = f"scale={W}:-1,crop={W}:{H}:0:'(ih-{H})*t/{d}',{fin}{caption(cap)}"
        run(f"ffmpeg -y -loop 1 -t {d} -i {shlex.quote(SHOTS+'/'+img)} -vf \"{vf}\" -r {FPS} -c:v libx264 -pix_fmt yuv420p -an {out}")
    elif kind == "phone":
        fc = (f"color={STAGE}:s={W}x{H}:d={d}:r={FPS}[bg];"
              f"[0:v]scale=-1:1000[ph];"
              f"[bg][ph]overlay=(W-w)/2:(H-h)/2,{fin}{caption(cap)}")
        run(f"ffmpeg -y -loop 1 -t {d} -i {shlex.quote(SHOTS+'/'+img)} -filter_complex \"{fc}\" -r {FPS} -c:v libx264 -pix_fmt yuv420p -an {out}")
    else:
        vf = (f"drawtext=fontfile={SANS}:text='STEPPING':fontcolor={BONE}:fontsize=120:x=(w-text_w)/2:y=(h-text_h)/2-40,"
              f"drawtext=fontfile={MONO}:text='BUILT FOR THE CULTURE':fontcolor={GOLD}:fontsize=30:x=(w-text_w)/2:y=(h/2)+70,"
              f"fade=t=in:st=0:d=0.5")
        run(f"ffmpeg -y -f lavfi -i color={STAGE}:s={W}x{H}:d={d}:r={FPS} -vf \"{vf}\" -c:v libx264 -pix_fmt yuv420p -an {out}")
    clip_files.append(out)
    print(f"  {s}  {d}s  -> {out}")
 
with open(f"{CLIPS}/list.txt","w") as f:
    for c in clip_files:
        f.write(f"file '{c}'\n")
run(f"ffmpeg -y -f concat -safe 0 -i {CLIPS}/list.txt -c:v libx264 -pix_fmt yuv420p -r {FPS} {ROOT}/build/video_silent.mp4")
 
vlen = round(total + TAIL, 3)
fadest = round(total - 0.3, 3)
af = (f"[0:a]aresample=44100,aformat=channel_layouts=stereo,loudnorm=I=-16:TP=-1.5:LRA=11,apad=whole_dur={vlen},asplit=2[vo][key];"
      f"[1:a]atrim=0:{vlen},asetpts=N/SR/TB,aresample=44100,aformat=channel_layouts=stereo,volume=0.22,afade=t=in:st=0:d=2,afade=t=out:st={fadest}:d=2.0[m];"
      f"[m][key]sidechaincompress=threshold=0.035:ratio=9:attack=15:release=350:makeup=1[md];"
      f"[vo][md]amix=inputs=2:duration=longest:normalize=0,alimiter=limit=0.97[out]")
run(f"ffmpeg -y -i {ROOT}/voiceover/stepping_vo.wav -i {ROOT}/assets/music_inspired.mp3 "
    f"-filter_complex \"{af}\" -map \"[out]\" -ar 44100 -ac 2 -c:a aac -b:a 192k {ROOT}/build/audio_final.m4a")
 
run(f"ffmpeg -y -i {ROOT}/build/video_silent.mp4 -i {ROOT}/build/audio_final.m4a "
    f"-map 0:v -map 1:a -c:v copy -c:a copy -shortest {ROOT}/build/stepping_walkthrough.mp4")
print("DONE -> build/stepping_walkthrough.mp4  (", vlen, "s )")

1	import json, os, subprocess, shlex
2
3	ROOT = "/shared/projects/SteppingApp/promo"
4	SHOTS = f"{ROOT}/shots"
5	CLIPS = f"{ROOT}/build/clips"
6	os.makedirs(CLIPS, exist_ok=True)
7	FPS = 30
8	W, H = 1920, 1080
9	def pick(paths):
10	for p in paths:
11	if os.path.exists(p):
12	return p
13	return paths[-1]
14	MONO = pick([
15	"/usr/share/fonts/truetype/liberation2/LiberationMono-Bold.ttf",
16	"/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf",
17	"/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf",
18	])
19	SANS = pick([
20	"/usr/share/fonts/truetype/liberation2/LiberationSans-Bold.ttf",
21	"/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf",
22	])
23	GOLD = "0xC8A24C"
24	BONE = "0xF2ECE0"
25	STAGE = "0x0F0E0C"
26
27	meta = json.load(open(f"{ROOT}/voiceover/scene_times.json"))
28	ss = meta["scene_start"]
29	total = meta["total"]
30	TAIL = 1.6
31
32	order = ["s1","s2","s3","s4","s5","s6","s7","s8","s9","s10"]
33	cfg = {
34	"s1": ("hero.png","wide","STEPPING / DIVINE NINE STEP CULTURE"),
35	"s2": ("cities.png","wide","CHOOSE YOUR CITY"),
36	"s3": ("city.png","wide","THE LINE-UP / UPCOMING SHOWS"),
37	"s4": ("event.png","wide","EVERY SHOW, IN DETAIL"),
38	"s5": ("yard.png","tall","THE YARD / THE COMMUNITY"),
39	"s6": ("profile.png","wide","PROFILES / WHO'S WHO"),
40	"s7": ("route.png","tall","THE ROUTE / PLAN THE TRIP"),
41	"s8": ("mobile.png","phone","RIGHT IN YOUR PHONE"),
42	"s9": ("hero.png","wide","MORE ON THE WAY"),
43	"s10": (None,"end",""),
44	}
45
46	def dur(i):
47	s = order[i]
48	if i < len(order)-1:
49	return round(ss[order[i+1]] - ss[s], 3)
50	return round(total - ss[s] + TAIL, 3)
51
52	def esc(t):
53	return t.replace(":", "\\:").replace("'", "’").replace(",", "\\,")
54
55	def caption(text):
56	if not text:
57	return ""
58	t = esc(text)
59	return (f",drawtext=fontfile={MONO}:text='{t}':fontcolor={GOLD}:fontsize=30"
60	f":x=88:y=h-96:box=1:boxcolor={STAGE}@0.55:boxborderw=22")
61
62	def run(cmd):
63	r = subprocess.run(cmd, shell=True, capture_output=True, text=True)
64	if r.returncode != 0:
65	print("FFMPEG ERR:\n", r.stderr[-1500:])
66	raise SystemExit(1)
67
68	clip_files = []
69	for i, s in enumerate(order):
70	img, kind, cap = cfg[s]
71	d = dur(i)
72	out = f"{CLIPS}/{s}.mp4"
73	frames = int(round(d*FPS))
74	fin = "fade=t=in:st=0:d=0.4,fade=t=out:st=%.3f:d=0.4" % max(d-0.4, 0)
75	if kind == "wide":
76	z = f"scale=2400:-1,zoompan=z='min(zoom+0.00035,1.06)':d={frames}:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':s={W}x{H}:fps={FPS}"
77	vf = f"{z},{fin}{caption(cap)}"
78	run(f"ffmpeg -y -loop 1 -t {d} -i {shlex.quote(SHOTS+'/'+img)} -vf \"{vf}\" -r {FPS} -c:v libx264 -pix_fmt yuv420p -an {out}")
79	elif kind == "tall":
80	vf = f"scale={W}:-1,crop={W}:{H}:0:'(ih-{H})*t/{d}',{fin}{caption(cap)}"
81	run(f"ffmpeg -y -loop 1 -t {d} -i {shlex.quote(SHOTS+'/'+img)} -vf \"{vf}\" -r {FPS} -c:v libx264 -pix_fmt yuv420p -an {out}")
82	elif kind == "phone":
83	fc = (f"color={STAGE}:s={W}x{H}:d={d}:r={FPS}[bg];"
84	f"[0:v]scale=-1:1000[ph];"
85	f"[bg][ph]overlay=(W-w)/2:(H-h)/2,{fin}{caption(cap)}")
86	run(f"ffmpeg -y -loop 1 -t {d} -i {shlex.quote(SHOTS+'/'+img)} -filter_complex \"{fc}\" -r {FPS} -c:v libx264 -pix_fmt yuv420p -an {out}")
87	else:
88	vf = (f"drawtext=fontfile={SANS}:text='STEPPING':fontcolor={BONE}:fontsize=120:x=(w-text_w)/2:y=(h-text_h)/2-40,"
89	f"drawtext=fontfile={MONO}:text='BUILT FOR THE CULTURE':fontcolor={GOLD}:fontsize=30:x=(w-text_w)/2:y=(h/2)+70,"
90	f"fade=t=in:st=0:d=0.5")
91	run(f"ffmpeg -y -f lavfi -i color={STAGE}:s={W}x{H}:d={d}:r={FPS} -vf \"{vf}\" -c:v libx264 -pix_fmt yuv420p -an {out}")
92	clip_files.append(out)
93	print(f" {s} {d}s -> {out}")
94
95	with open(f"{CLIPS}/list.txt","w") as f:
96	for c in clip_files:
97	f.write(f"file '{c}'\n")
98	run(f"ffmpeg -y -f concat -safe 0 -i {CLIPS}/list.txt -c:v libx264 -pix_fmt yuv420p -r {FPS} {ROOT}/build/video_silent.mp4")
99
100	vlen = round(total + TAIL, 3)
101	fadest = round(total - 0.3, 3)
102	af = (f"[0:a]aresample=44100,aformat=channel_layouts=stereo,loudnorm=I=-16:TP=-1.5:LRA=11,apad=whole_dur={vlen},asplit=2[vo][key];"
103	f"[1:a]atrim=0:{vlen},asetpts=N/SR/TB,aresample=44100,aformat=channel_layouts=stereo,volume=0.22,afade=t=in:st=0:d=2,afade=t=out:st={fadest}:d=2.0[m];"
104	f"[m][key]sidechaincompress=threshold=0.035:ratio=9:attack=15:release=350:makeup=1[md];"
105	f"[vo][md]amix=inputs=2:duration=longest:normalize=0,alimiter=limit=0.97[out]")
106	run(f"ffmpeg -y -i {ROOT}/voiceover/stepping_vo.wav -i {ROOT}/assets/music_inspired.mp3 "
107	f"-filter_complex \"{af}\" -map \"[out]\" -ar 44100 -ac 2 -c:a aac -b:a 192k {ROOT}/build/audio_final.m4a")
108
109	run(f"ffmpeg -y -i {ROOT}/build/video_silent.mp4 -i {ROOT}/build/audio_final.m4a "
110	f"-map 0:v -map 1:a -c:v copy -c:a copy -shortest {ROOT}/build/stepping_walkthrough.mp4")
111	print("DONE -> build/stepping_walkthrough.mp4 (", vlen, "s )")