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#!/usr/bin/python3
import sys
import os
import hashlib
import ntpath
import tempfile
import shutil
import xml.etree.ElementTree as ET
if len(sys.argv) < 2:
print('Syntax: %s <film>' % sys.argv[1])
sys.exit(1)
metadata_xml = os.path.join(sys.argv[1], 'metadata.xml');
tree = ET.parse(metadata_xml)
def digest_head_tail(filename, size=1000000):
m = hashlib.md5()
f = open(filename, 'rb')
m.update(f.read(size))
f.seek(size, 2)
m.update(f.read(size))
f.close()
return m.hexdigest() + str(os.path.getsize(filename))
def command(c):
print(f"=> {c}")
os.system(c)
try:
os.makedirs(os.path.join(sys.argv[1], 'dummy'))
except:
pass
root = tree.getroot()
for c in root.find('Playlist').findall('Content'):
type = c.find('Type').text
if type == 'DCP':
# Find the ASSETMAP
assetmap_file = None
for p in c.findall('Path'):
if os.path.basename(p.text) == 'ASSETMAP':
assetmap_file = p.text
assert(assetmap_file is not None)
dir = os.path.dirname(assetmap_file)
assets = {}
assetmap = ET.parse(assetmap_file)
ns = {'am': 'http://www.digicine.com/PROTO-ASDCP-AM-20040311#'}
for a in assetmap.getroot().find('am:AssetList', ns).findall('am:Asset', ns):
assets[a.find('am:Id', ns).text[9:]] = a.find('am:ChunkList', ns).find('am:Chunk', ns).find('am:Path', ns).text
cpl_id = None
for k, v in assets.iteritems():
try:
e = ET.parse(os.path.join(dir, v))
if e.getroot().tag == '{http://www.digicine.com/PROTO-ASDCP-CPL-20040511#}CompositionPlaylist':
cpl_id = k
except:
pass
assert(cpl_id is not None)
cpl = ET.parse(os.path.join(dir, assets[cpl_id]))
ns = {'cpl': 'http://www.digicine.com/PROTO-ASDCP-CPL-20040511#'}
for r in cpl.find('cpl:ReelList', ns).findall('cpl:Reel', ns):
for a in r.find('cpl:AssetList', ns).iter():
if a.tag == '{%s}MainPicture' % ns['cpl']:
id = a.find('cpl:Id', ns).text[9:]
duration = int(a.find('cpl:IntrinsicDuration', ns).text)
black_png = tempfile.NamedTemporaryFile('wb', suffix='.png')
black_j2c = tempfile.NamedTemporaryFile('wb', suffix='.j2c')
os.system('convert -size 1998x1080 xc:black %s' % black_png.name)
os.system('image_to_j2k -i %s -o %s' % (black_png.name, black_j2c.name))
j2c_dir = tempfile.mkdtemp()
for i in range(0, duration):
shutil.copyfile(black_j2c.name, os.path.join(j2c_dir, '%06d.j2c' % i))
os.system('asdcp-wrap -a %s %s %s' % (id, j2c_dir, os.path.join(sys.argv[1], 'dummy', assets[id])))
elif a.tag == '{%s}MainSound' % ns['cpl']:
wav = tempfile.NamedTemporaryFile('wb', suffix='.wav')
id = a.find('cpl:Id', ns).text[9:]
duration = int(a.find('cpl:IntrinsicDuration', ns).text)
edit_rate = int(a.find('cpl:EditRate', ns).text.split()[0])
os.system('sox -n -r 48000 -c 6 %s trim 0.0 %f' % (wav.name, float(duration) / edit_rate))
os.system('asdcp-wrap -a %s %s %s' % (id, wav.name, os.path.join(sys.argv[1], 'dummy', assets[id])))
elif type == 'Sndfile':
audio_frame_rate = int(c.find('AudioFrameRate').text)
channels = int(c.find('AudioMapping').find('InputChannels').text)
path = os.path.join(sys.argv[1], 'dummy', ntpath.basename(c.find('Path').text))
audio_length = int(c.find('AudioLength').text)
os.system('sox -n -r %d -c %d %s trim 0.0 %f' % (audio_frame_rate, channels, path, float(audio_length) / audio_frame_rate))
elif type == 'FFmpeg':
have_video = False
have_audio = False
path = os.path.join(sys.argv[1], 'dummy', ntpath.basename(c.find('Path').text))
if c.find('VideoFrameRate') is not None:
video_frame_rate = float(c.find('VideoFrameRate').text)
video_length = int(c.find('VideoLength').text)
have_video = True
command(f"ffmpeg -t {float(video_length) / video_frame_rate} -s qcif -f rawvideo -pix_fmt rgb24 -r {video_frame_rate} -i /dev/zero video.mkv")
if c.find('AudioStream') is not None:
audio_channels = int(c.find('AudioStream').find('Mapping').find('InputChannels').text)
audio_length = int(c.find('AudioStream').find('Length').text)
audio_frame_rate = int(c.find('AudioStream').find('FrameRate').text)
names = { 1: 'mono', 2: 'stereo', 3: '3.0', 4: '4.0', 5: '4.1', 6: '5.1', 7: '6.1', 8: '7.1' }
have_audio = True
print(f"audio_length={audio_length} frame_rate={audio_frame_rate}")
command(f'sox -n -r 48000 -c {audio_channels} audio.wav trim 0.0 {audio_length}s')
if have_video and have_audio:
command(f"ffmpeg -i video.mkv -i audio.wav {path}")
elif have_video:
shutil.move("video.mkv", path)
elif have_audio:
shutil.move("audio.wav", path)
try:
os.remove("video.mkv")
os.remove("audio.mkv")
except:
pass
c.find('Path').text = path
c.find('Digest').text = digest_head_tail(path)
elif type == 'Image':
width = int(c.find('VideoWidth').text)
height = int(c.find('VideoHeight').text)
path = os.path.join(sys.argv[1], 'dummy', ntpath.basename(c.find('Path').text))
os.system('convert -size %dx%d xc:black "%s"' % (width, height, path))
else:
print('Skipped %s' % type)
shutil.move(metadata_xml, metadata_xml + '.bak')
r = open(metadata_xml, 'w')
r.write(ET.tostring(root).decode('UTF-8'))
r.close()
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