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#!/usr/bin/python
import sys
import os
import ntpath
import tempfile
import shutil
import hashlib
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':
interop = True
elif os.path.basename(p.text) == 'ASSETMAP.xml':
interop = False
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#'} if interop else {'am': 'http://www.smpte-ra.org/schemas/429-9/2007/AM'}
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
cpl_ns = 'http://www.digicine.com/PROTO-ASDCP-CPL-20040511#}' if interop else 'http://www.smpte-ra.org/schemas/429-7/2006/CPL'
for k, v in assets.items():
try:
e = ET.parse(os.path.join(dir, v))
print(e.getroot().tag)
if e.getroot().tag == "{" + cpl_ns + "}CompositionPlaylist":
cpl_id = k
except:
pass
assert(cpl_id is not None)
cpl = ET.parse(os.path.join(dir, assets[cpl_id]))
ns = {'cpl': cpl_ns}
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_j2cs = []
black_j2c = tempfile.NamedTemporaryFile('wb', suffix='.j2c')
os.system('convert -size 1998x1080 xc:black %s' % black_png.name)
os.system('opj_compress -i %s -o %s' % (black_png.name, black_j2c.name))
j2c_dir = tempfile.mkdtemp()
for i in range(0, duration):
try:
os.link(black_j2c.name, os.path.join(j2c_dir, '%06d.j2c' % i))
except OSError as e:
if e.errno == 31:
# Too many links
black_j2cs.append(black_j2c)
black_j2c = tempfile.NamedTemporaryFile('wb', suffix='.j2c')
os.link(black_j2c.name, os.path.join(j2c_dir, '%06d.j2c' % i))
else:
raise
print('=> wrap it')
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 -b 16 -n -r %d -c %d %s trim 0.0 %f' % (audio_frame_rate, channels, path, float(audio_length) / audio_frame_rate))
elif type == 'FFmpeg':
video_cmd = ''
audio_cmd = ''
path = os.path.join(sys.argv[1], 'dummy', ntpath.basename(c.find('Path').text))
if c.find('AudioStream') is not None:
audio_channels = int(c.find('AudioStream').find('Mapping').find('InputChannels').text)
audio_frame_rate = int(c.find('AudioStream').find('FrameRate').text)
audio_length = int(c.find('AudioStream').find('Length').text)
names = { 1: 'mono', 2: 'stereo', 3: '3.0', 4: '4.0', 5: '4.1', 6: '5.1', 7: '6.1', 8: '7.1' }
os.system(f'ffmpeg -t {float(audio_length) / audio_frame_rate} -f lavfi -i anullsrc=channel_layout={names[audio_channels]}:sample_rate={audio_frame_rate} audio.aac')
if c.find('VideoFrameRate') is not None:
video_frame_rate = float(c.find('VideoFrameRate').text)
video_length = int(c.find('VideoLength').text)
video_cmd = '-s qcif -f rawvideo -pix_fmt rgb24 -r %f -i /dev/zero' % video_frame_rate
command(f'ffmpeg -t {video_length / video_frame_rate} -s qcif -f rawvideo -pix_fmt rgb24 -r {video_frame_rate} -i /dev/zero -shortest video.mp4')
if c.find('AudioStream') is not None and c.find('VideoFrameRate') is not None:
command(f'ffmpeg -i video.mp4 -i audio.aac -c copy -shortest "{path}"')
elif c.find('VideoFrameRate') is not None:
command(f'ffmpeg -i video.mp4 "{path}"')
else:
command('sox -b 16 -n -r %d -c %d %s trim 0.0 %f' % (audio_frame_rate, audio_channels, path, float(audio_length) / audio_frame_rate))
try:
os.unlink('video.mp4')
os.unlink('audio.aac')
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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