# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division, print_function, absolute_import
import json
import os.path
import shutil
import tempfile
import time
from six import string_types, PY2
from django.conf import settings
from django.contrib.auth.models import User
from django.db import models
from django.db.models.signals import pre_delete
from oxdjango import fields
import ox
import ox.iso
from item import utils
import item.models
from person.models import get_name_sort
from taskqueue.models import Task
from .chunk import save_chunk
from . import extract
from . import managers
if not PY2:
unicode = str
def data_path(f, x):
return f.get_path('data.bin')
class File(models.Model):
AV_INFO = (
'duration', 'video', 'audio', 'oshash', 'size',
)
PATH_INFO = (
'episodes', 'extension', 'language', 'part', 'partTitle', 'version'
)
ITEM_INFO = (
'title', 'director', 'year',
'season', 'episode', 'episodeTitle',
'seriesTitle', 'seriesYear'
)
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
oshash = models.CharField(max_length=16, unique=True)
item = models.ForeignKey("item.Item", related_name='files', null=True)
path = models.CharField(max_length=2048, default="") # canoncial path/file
sort_path = models.CharField(max_length=2048, default="") # sort name
type = models.CharField(default="", max_length=255)
# editable
extension = models.CharField(default="", max_length=255, null=True)
language = models.CharField(default="", max_length=255, null=True)
part = models.CharField(default="", max_length=255, null=True)
part_title = models.CharField(default="", max_length=255, null=True)
version = models.CharField(default="", max_length=255, null=True)
size = models.BigIntegerField(default=0)
duration = models.FloatField(null=True)
info = fields.DictField(default={})
video_codec = models.CharField(max_length=255)
pixel_format = models.CharField(max_length=255)
display_aspect_ratio = models.CharField(max_length=255)
width = models.IntegerField(default=0)
height = models.IntegerField(default=0)
framerate = models.CharField(max_length=255)
audio_codec = models.CharField(max_length=255)
channels = models.IntegerField(default=0)
samplerate = models.IntegerField(default=0)
bits_per_pixel = models.FloatField(default=-1)
pixels = models.BigIntegerField(default=0)
# This is true if derivative is available or subtitles where uploaded
available = models.BooleanField(default=False)
selected = models.BooleanField(default=False)
uploading = models.BooleanField(default=False)
queued = models.BooleanField(default=False)
encoding = models.BooleanField(default=False)
wanted = models.BooleanField(default=False)
failed = models.BooleanField(default=False)
is_audio = models.BooleanField(default=False)
is_video = models.BooleanField(default=False)
is_subtitle = models.BooleanField(default=False)
# upload and data handling
data = models.FileField(null=True, blank=True,
upload_to=data_path)
objects = managers.FileManager()
def __unicode__(self):
return self.path
def parse_info(self):
if self.info:
for key in ('duration', 'size'):
setattr(self, key, self.info.get(key, 0))
if 'video' in self.info and self.info['video'] and \
'width' in self.info['video'][0]:
video = self.info['video'][0]
self.video_codec = video['codec']
self.width = video['width']
self.height = video['height']
self.framerate = video['framerate']
if 'display_aspect_ratio' in video and video['display_aspect_ratio'].split(':')[-1] != '0':
self.display_aspect_ratio = video['display_aspect_ratio']
elif self.width and self.height:
self.display_aspect_ratio = "%s:%s" % (self.width, self.height)
else:
self.display_aspect_ratio = "4:3"
self.is_video = True
self.is_audio = False
if self.path.endswith('.jpg') or \
self.path.endswith('.png') or \
self.path.endswith('.txt') or \
self.video_codec == 'ansi' or \
self.duration == 0.04:
self.is_video = False
self.video_codec = ''
else:
self.is_video = False
self.display_aspect_ratio = "4:3"
self.width = 0
self.height = 0
if 'audio' in self.info and self.info['audio'] and self.duration > 0:
audio = self.info['audio'][0]
self.audio_codec = audio.get('codec', '')
self.samplerate = audio.get('samplerate', 0)
self.channels = audio.get('channels', 0)
if not self.is_video:
self.is_audio = True
else:
self.is_audio = False
self.audio_codec = ''
self.sampleate = 0
self.channels = 0
if self.framerate:
self.pixels = int(self.width * self.height * float(utils.parse_decimal(self.framerate)) * self.duration)
def get_path_info(self):
data = {}
for key in self.PATH_INFO:
data[key] = self.info.get(key, None)
if self.item:
for key in self.ITEM_INFO:
data[key] = self.item.get(key)
if isinstance(data[key], string_types):
data[key] = ox.decode_html(data[key])
elif isinstance(data[key], list):
data[key] = [ox.decode_html(e) for e in data[key]]
if self.item.get('series'):
data['isEpisode'] = True
data['directorSort'] = [get_name_sort(n) for n in self.item.get('director', [])]
data['isEpisode'] = 'isEpisode' in data \
or data.get('season') is not None \
or data.get('episode') is not None \
or data.get('episodes') not in ([], None) \
or (data.get('seriesTitle') is not None and data.get('episodeTitle') is not None)
if data['isEpisode'] and data['seriesYear'] is None:
data['seriesYear'] = data['year']
data['type'] = 'unknown'
if 'extension' in data and data['extension']:
data['extension'] = data['extension'].lower()
for type in ox.movie.EXTENSIONS:
if data['extension'] in ox.movie.EXTENSIONS[type]:
data['type'] = type
if 'part' in data and isinstance(data['part'], int):
data['part'] = str(data['part'])
return data
def normalize_path(self):
# FIXME: always use format_path
if settings.CONFIG['site']['folderdepth'] == 4:
return self.normalize_item_path()
else:
path = self.path or ''
if self.instances.all().count():
path = self.instances.all()[0].path
return path
def normalize_item_path(self):
if not self.instances.all().count():
return ox.movie.format_path(self.get_path_info())
files = []
volume = self.instances.all()[0].volume
def add_file(f):
instance = f.instances.all()[0]
files.append(f.get_path_info())
files[-1].update({
'path': instance.path,
'normalizedPath': ox.movie.format_path(files[-1]),
'time': instance.mtime,
'oshash': f.oshash,
'size': f.size
})
add_file(self)
for f in self.item.files.filter(instances__volume=volume).exclude(id=self.id):
add_file(f)
versions = ox.movie.parse_item_files(files)
for version in versions:
p = list(filter(lambda f: f['oshash'] == self.oshash, version['files']))
if p:
return p[0]['normalizedPath']
def update_info(self, info, user):
if not self.info:
# populate name sort with director if unknown
if info.get('director') and info.get('directorSort'):
for name, sortname in zip(info['director'], info['directorSort']):
get_name_sort(name, sortname)
# add all files in one folder to same item
if self.instances.all().count():
if info.get('isEpisode'):
prefix = os.path.splitext(self.instances.all()[0].path)[0]
else:
prefix = os.path.dirname(self.instances.all()[0].path) + '/'
qs = item.models.Item.objects.filter(files__instances__path__startswith=prefix)
if qs.exists():
self.item = qs[0]
if not self.item:
self.item = item.models.get_item(info, user)
Task.start(self.item, user)
for key in self.AV_INFO + self.PATH_INFO:
if key in info:
self.info[key] = info[key]
self.parse_info()
def save(self, *args, **kwargs):
update_path = False
if self.info:
if self.id:
self.path = self.normalize_path()
else:
update_path = True
if self.item:
data = self.get_path_info()
self.extension = data.get('extension')
self.language = data.get('language')
self.part = ox.sort_string(unicode(data.get('part') or ''))
self.part_title = ox.sort_string(unicode(data.get('partTitle')) or '')
self.type = data.get('type') or 'unknown'
self.version = data.get('version')
if self.path:
self.sort_path = utils.sort_string(self.path)
self.is_audio = self.type == 'audio'
self.is_video = self.type == 'video'
self.is_subtitle = self.path.split('.')[-1] in ('srt', 'vtt')
if self.type not in ('audio', 'video'):
self.duration = None
else:
duration = sum([s.info.get('duration', 0)
for s in self.streams.filter(source=None)])
if duration:
self.duration = duration
if self.is_subtitle:
self.available = self.data and True or False
else:
self.available = not self.uploading and \
self.streams.filter(source=None, available=True).count()
super(File, self).save(*args, **kwargs)
if update_path:
self.path = self.normalize_path()
super(File, self).save(*args, **kwargs)
def get_path(self, name):
h = self.oshash
return os.path.join('media', h[:2], h[2:4], h[4:6], h[6:], name)
def contents(self):
if self.data is not None:
self.data.seek(0)
return self.data.read()
return None
def srt(self, offset=0):
srt = []
subtitles = []
if self.data.path.endswith('.vtt'):
load = ox.vtt.load
else:
load = ox.srt.load
for s in load(self.data.path):
if s['in'] <= s['out'] and s['value'].strip():
key = '%s --> %s\n%s' % (s['in'], s['out'], s['value'])
if key not in subtitles:
subtitles.append(key)
srt.append(s)
# subtitles should not overlap
for i in range(1, len(srt)):
if srt[i-1]['out'] > srt[i]['in']:
srt[i-1]['out'] = srt[i]['in']
def shift(s):
s['in'] += offset
s['out'] += offset
return s
if offset:
srt = map(shift, srt)
return srt
def editable(self, user):
p = user.profile
return p.get_level() in ('admin', 'staff') or \
(not self.available and p.capability('canAddItems')) or \
self.instances.filter(volume__user=user).count() > 0 or \
(not self.item or self.item.user == user)
def save_chunk(self, chunk, offset=None, done=False):
if not self.available:
name = 'data.%s' % self.info.get('extension', 'avi')
name = self.get_path(name)
def done_cb():
if done:
self.info.update(ox.avinfo(self.data.path))
self.parse_info()
# reject invalid uploads
if self.info.get('oshash') != self.oshash:
self.data.delete()
self.save()
return False, 0
self.save()
return True, self.data.size
return save_chunk(self, self.data, chunk, offset, name, done_cb)
else:
return False, 0
def save_chunk_stream(self, chunk, offset, resolution, format, done):
if not self.available:
stream, created = Stream.objects.get_or_create(file=self, resolution=resolution, format=format)
name = stream.path(stream.name())
def done_cb():
if done:
stream.available = True
stream.info = {}
stream.save()
if list(self.info) == ['extension']:
self.info.update(stream.info)
self.parse_info()
self.save()
return True, stream.media.size
return save_chunk(stream, stream.media, chunk, offset, name, done_cb)
return False, 0
def stream_resolution(self):
config = settings.CONFIG['video']
height = self.info['video'][0]['height'] if self.info.get('video') else None
for resolution in sorted(config['resolutions']):
if height and height <= resolution:
return resolution
return resolution
def json(self, keys=None, user=None):
resolution = (self.width, self.height)
if resolution == (0, 0) or self.type != 'video':
resolution = None
duration = self.duration
if self.type not in ('audio', 'video'):
duration = None
state = ''
error = ''
if self.failed:
state = 'failed'
error = '\n\n'.join(['Failed to encode %s:\n%s' % (s.name(), s.error)
for s in self.streams.exclude(error='') if s.error]) + \
'\n\nSource Info:\n' + json.dumps(self.info, indent=2)
elif self.encoding:
state = 'encoding'
elif self.queued:
state = 'queued'
elif self.uploading:
state = 'uploading'
elif self.available:
state = 'available'
elif self.wanted:
state = 'wanted'
data = {
'audioCodec': self.audio_codec,
'available': self.available,
'duration': duration,
'state': state,
'framerate': self.framerate,
'id': self.oshash,
'instances': [i.json() for i in self.instances.all()],
'path': self.path,
'resolution': resolution,
'samplerate': self.samplerate,
'channels': self.channels,
'selected': self.selected,
'size': self.size,
'type': self.type,
'videoCodec': self.video_codec,
'wanted': self.wanted,
}
if error:
data['error'] = error
for key in self.PATH_INFO:
data[key] = self.info.get(key)
data['users'] = list(set([i['user'] for i in data['instances']]))
data['item'] = self.item.public_id
if keys:
if 'url' in keys and 'url' in self.info:
data['url'] = self.info['url']
for k in list(data):
if k not in keys:
del data[k]
return data
def all_paths(self):
return [self.path] + [i.path for i in self.instances.all()]
def extract_frames(self):
def video_frame_positions(duration):
pos = duration / 2
return map(int, [pos/2, pos, pos+pos/2])
if settings.CONFIG['media'].get('importFrames') and self.data:
filename = self.data.path
info = self.info
for pos in video_frame_positions(info['duration']):
position = float(pos)
name = "%s.png" % position
fr, created = Frame.objects.get_or_create(file=self, position=position)
if fr.frame:
fr.frame.delete()
fr.frame.name = self.get_path(name)
if not os.path.exists(fr.frame.path):
extract.frame_direct(filename, fr.frame.path, pos)
if os.path.exists(fr.frame.path):
fr.save()
os.chmod(fr.frame.path, 0o644)
self.item.select_frame()
def extract_stream(self):
'''
extract stream from direct upload
'''
from . import tasks
return tasks.extract_stream.delay(self.id)
def process_stream(self):
'''
extract derivatives from webm upload
'''
from . import tasks
return tasks.process_stream.delay(self.id)
def extract_tracks(self):
'''
extract audio tracks from direct upload
'''
def parse_language(lang):
if lang:
short = ox.iso.langCode3To2(lang.encode('utf-8'))
if not short and ox.iso.codeToLang(lang[:2]):
lang = lang[:2]
else:
lang = short
if not lang:
lang = settings.CONFIG['language']
return lang
audio = self.info.get('audio', [])
if self.data and len(audio) > 1:
config = settings.CONFIG['video']
resolution = self.stream_resolution()
tmp = tempfile.mkdtemp()
if not self.info.get('language'):
self.info['language'] = parse_language(audio[0].get('language'))
self.save()
languages = [self.info['language']]
for i, a in enumerate(audio[1:]):
media = self.data.path
info = ox.avinfo(media)
lang = language = parse_language(a.get('language'))
n = 2
while language in languages:
language = '%s%d' % (lang, n)
n += 1
profile = '%sp.%s' % (resolution, config['formats'][0])
target = os.path.join(tmp, language + '_' + profile)
ok, error = extract.stream(media, target, profile, info, audio_track=i+1)
if ok:
tinfo = ox.avinfo(target)
del tinfo['path']
f = File(oshash=tinfo['oshash'], item=self.item)
f.path = self.path.rsplit('.', 1)[0] + config['formats'][0]
f.info = tinfo
f.info['language'] = language
f.info['extension'] = config['formats'][0]
f.parse_info()
f.selected = True
f.save()
stream, created = Stream.objects.get_or_create(
file=f, resolution=resolution, format=config['formats'][0]
)
if created:
stream.media.name = stream.path(stream.name())
ox.makedirs(os.path.dirname(stream.media.path))
shutil.move(target, stream.media.path)
stream.available = True
stream.save()
stream.make_timeline()
stream.extract_derivatives()
if os.path.exists(target):
os.unlink(target)
shutil.rmtree(tmp)
def encoding_status(self):
status = {}
if self.encoding:
for s in self.streams.all():
status[s.name()] = u'done' if s.available else u'encoding'
config = settings.CONFIG['video']
max_resolution = self.streams.get(source=None).resolution
for resolution in sorted(config['resolutions'], reverse=True):
if resolution <= max_resolution:
for f in config['formats']:
name = u'%sp.%s' % (resolution, f)
if name not in status:
status[name] = u'queued'
return status
def delete_frames(self):
frames = os.path.join(settings.MEDIA_ROOT, self.get_path('frames'))
if os.path.exists(frames):
shutil.rmtree(frames)
def delete_files(self):
if self.data:
self.data.delete(save=False)
self.streams.all().delete()
prefix = os.path.join(settings.MEDIA_ROOT, self.get_path(''))
if os.path.exists(prefix):
shutil.rmtree(prefix)
def delete_file(sender, **kwargs):
f = kwargs['instance']
f.delete_files()
pre_delete.connect(delete_file, sender=File)
class Volume(models.Model):
class Meta:
unique_together = ("user", "name")
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
user = models.ForeignKey(User, related_name='volumes')
name = models.CharField(max_length=1024)
def __unicode__(self):
return u"%s's %s" % (self.user, self.name)
def json(self):
return {
'name': self.name,
'path': 'unknown',
'items': self.files.count()
}
def inttime():
return int(time.time())
class Instance(models.Model):
class Meta:
unique_together = ("path", "volume")
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
atime = models.BigIntegerField(default=inttime, editable=False)
ctime = models.BigIntegerField(default=inttime, editable=False)
mtime = models.BigIntegerField(default=inttime, editable=False)
path = models.CharField(max_length=2048)
ignore = models.BooleanField(default=False)
file = models.ForeignKey(File, related_name='instances')
volume = models.ForeignKey(Volume, related_name='files')
def __unicode__(self):
return u"%s's %s <%s>" % (self.volume.user, self.path, self.file.oshash)
@property
def public_id(self):
return File.objects.get(oshash=self.oshash).public_id
def json(self):
return {
'ignore': self.ignore,
'path': self.path,
'user': self.volume.user.username,
'volume': self.volume.name,
}
def frame_path(frame, name):
ext = os.path.splitext(name)[-1]
name = "%s%s" % (frame.position, ext)
return frame.file.get_path(name)
class Frame(models.Model):
class Meta:
unique_together = ("file", "position")
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
file = models.ForeignKey(File, related_name="frames")
position = models.FloatField()
frame = models.ImageField(default=None, null=True, upload_to=frame_path)
width = models.IntegerField(default=0)
height = models.IntegerField(default=0)
def save(self, *args, **kwargs):
if self.frame:
self.width = self.frame.width
self.height = self.frame.height
super(Frame, self).save(*args, **kwargs)
def __unicode__(self):
return u'%s/%s' % (self.file, self.position)
def delete_frame(sender, **kwargs):
f = kwargs['instance']
if f.frame:
f.frame.delete(save=False)
pre_delete.connect(delete_frame, sender=Frame)
def stream_path(f, x):
return f.path(x)
class Stream(models.Model):
class Meta:
unique_together = ("file", "resolution", "format")
file = models.ForeignKey(File, related_name='streams')
resolution = models.IntegerField(default=96)
format = models.CharField(max_length=255, default='webm')
media = models.FileField(default=None, blank=True, upload_to=stream_path)
source = models.ForeignKey('Stream', related_name='derivatives', default=None, null=True)
available = models.BooleanField(default=False)
oshash = models.CharField(max_length=16, null=True, db_index=True)
info = fields.DictField(default={})
duration = models.FloatField(default=0)
aspect_ratio = models.FloatField(default=0)
cuts = fields.TupleField(default=[])
color = fields.TupleField(default=[])
volume = models.FloatField(default=0)
error = models.TextField(blank=True, default='')
@property
def timeline_prefix(self):
return os.path.join(settings.MEDIA_ROOT, self.path())
return os.path.join(settings.MEDIA_ROOT, self.path(), 'timeline')
def name(self):
return u"%sp.%s" % (self.resolution, self.format)
def __unicode__(self):
return u"%s/%s" % (self.file, self.name())
def get(self, resolution, format):
streams = []
if self.format == format:
streams.append(self)
for stream in self.derivatives.filter(format=format).order_by('-resolution'):
streams.append(stream)
stream = streams.pop(0)
while streams and streams[0].resolution >= resolution:
stream = streams.pop(0)
return stream
def path(self, name=''):
if self.source:
return os.path.join(os.path.dirname(self.source.media.name), name)
else:
return self.file.get_path(name)
def extract_derivatives(self, rebuild=False):
config = settings.CONFIG['video']
for resolution in sorted(config['resolutions'], reverse=True):
if resolution <= self.resolution:
for f in config['formats']:
derivative, created = Stream.objects.get_or_create(file=self.file,
resolution=resolution,
format=f)
if created:
derivative.source = self
derivative.save()
derivative.encode()
elif rebuild or not derivative.available:
derivative.encode()
def encode(self):
media = self.source.media.path if self.source else self.file.data.path
if not self.media:
self.media.name = self.path(self.name())
target = self.media.path
info = ox.avinfo(media)
ok, error = extract.stream(media, target, self.name(), info)
# file could have been moved while encoding
# get current version from db and update
_self = Stream.objects.get(id=self.id)
_self.update_status(ok, error)
return _self
def get_index(self):
index = 1
for s in self.file.item.streams():
if self.source and self.source == s:
return index
if s == self:
return index
index += 1
return None
def update_status(self, ok, error):
if ok:
if not self.media:
self.media.name = self.path(self.name())
self.available = True
self.error = ''
if self.file.failed:
self.file.failed = False
self.file.save()
else:
self.media = None
self.available = False
self.error = error
self.file.failed = True
self.file.save()
self.save()
def make_timeline(self):
if self.available and not self.source:
extract.timeline(self.media.path, self.timeline_prefix)
self.cuts = tuple(extract.cuts(self.timeline_prefix))
self.color = tuple(extract.average_color(self.timeline_prefix))
self.volume = extract.average_volume(self.timeline_prefix)
self.save()
def save(self, *args, **kwargs):
if self.media and not self.info:
self.info = ox.avinfo(self.media.path)
if 'path' in self.info:
del self.info['path']
self.oshash = self.info.get('oshash')
self.duration = self.info.get('duration', 0)
if 'video' in self.info and self.info['video']:
if 'display_aspect_ratio' in self.info['video'][0]:
dar = list(map(int, self.info['video'][0]['display_aspect_ratio'].split(':')))
self.aspect_ratio = dar[0] / dar[1]
else:
self.aspect_ratio = self.info['video'][0]['width'] / self.info['video'][0]['height']
else:
self.aspect_ratio = settings.CONFIG['video']['previewRatio']
super(Stream, self).save(*args, **kwargs)
if self.available and not self.file.available:
self.file.save()
def json(self):
return {
'duration': self.duration,
'aspectratio': self.aspect_ratio,
}
def delete_stream(sender, **kwargs):
f = kwargs['instance']
if f.media:
f.media.delete(save=False)
pre_delete.connect(delete_stream, sender=Stream)