508 lines
18 KiB
Python
508 lines
18 KiB
Python
# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division, with_statement
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import os.path
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import time
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import shutil
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from django.conf import settings
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from django.contrib.auth.models import User
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from django.db import models
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from django.db.models.signals import pre_delete
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from ox.django import fields
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import ox
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from item import utils
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import item.models
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from person.models import get_name_sort
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import extract
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class File(models.Model):
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AV_INFO = (
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'duration', 'video', 'audio', 'oshash', 'size',
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)
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PATH_INFO = (
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'episodes', 'extension', 'language', 'part', 'partTitle', 'version'
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)
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ITEM_INFO = (
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'title', 'director', 'year',
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'season', 'episode', 'episodeTitle',
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'seriesTitle', 'seriesYear'
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)
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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oshash = models.CharField(max_length=16, unique=True)
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item = models.ForeignKey("item.Item", related_name='files', null=True)
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path = models.CharField(max_length=2048, default="") # canoncial path/file
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sort_path = models.CharField(max_length=2048, default="") # sort name
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type = models.CharField(default="", max_length=255)
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#editable
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extension = models.CharField(default="", max_length=255, null=True)
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language = models.CharField(default="", max_length=8, null=True)
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part = models.CharField(default="", max_length=255, null=True)
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part_title = models.CharField(default="", max_length=255, null=True)
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version = models.CharField(default="", max_length=255, null=True)
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size = models.BigIntegerField(default=0)
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duration = models.FloatField(null=True)
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info = fields.DictField(default={})
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video_codec = models.CharField(max_length=255)
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pixel_format = models.CharField(max_length=255)
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display_aspect_ratio = models.CharField(max_length=255)
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width = models.IntegerField(default = 0)
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height = models.IntegerField(default = 0)
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framerate = models.CharField(max_length=255)
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audio_codec = models.CharField(max_length=255)
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channels = models.IntegerField(default=0)
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samplerate = models.IntegerField(default=0)
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bits_per_pixel = models.FloatField(default=-1)
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pixels = models.BigIntegerField(default=0)
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#This is true if derivative is available or subtitles where uploaded
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available = models.BooleanField(default = False)
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selected = models.BooleanField(default = False)
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uploading = models.BooleanField(default = False)
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wanted = models.BooleanField(default = False)
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is_audio = models.BooleanField(default=False)
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is_video = models.BooleanField(default=False)
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is_subtitle = models.BooleanField(default=False)
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#upload and data handling
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data = models.FileField(null=True, blank=True,
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upload_to=lambda f, x: f.get_path('data.bin'))
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def __unicode__(self):
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return self.path
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def parse_info(self):
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if self.info:
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for key in ('duration', 'size'):
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setattr(self, key, self.info.get(key, 0))
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if 'video' in self.info and self.info['video'] and \
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'width' in self.info['video'][0]:
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video = self.info['video'][0]
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self.video_codec = video['codec']
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self.width = video['width']
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self.height = video['height']
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self.framerate = video['framerate']
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if 'display_aspect_ratio' in video:
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self.display_aspect_ratio = video['display_aspect_ratio']
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else:
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self.display_aspect_ratio = "%s:%s" % (self.width, self.height)
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self.is_video = True
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self.is_audio = False
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if self.path.endswith('.jpg') or \
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self.path.endswith('.png') or \
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self.path.endswith('.txt') or \
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self.video_codec == 'ansi' or \
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self.duration == 0.04:
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self.is_video = False
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self.video_codec = ''
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else:
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self.is_video = False
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self.display_aspect_ratio = "4:3"
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self.width = 0
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self.height = 0
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if 'audio' in self.info and self.info['audio'] and self.duration > 0:
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audio = self.info['audio'][0]
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self.audio_codec = audio['codec']
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self.samplerate = audio.get('samplerate', 0)
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self.channels = audio.get('channels', 0)
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if not self.is_video:
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self.is_audio = True
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else:
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self.is_audio = False
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self.audio_codec = ''
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self.sampleate = 0
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self.channels = 0
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if self.framerate:
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self.pixels = int(self.width * self.height * float(utils.parse_decimal(self.framerate)) * self.duration)
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def get_path_info(self):
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data = {}
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for key in self.PATH_INFO:
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data[key] = self.info.get(key, None)
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if self.item:
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for key in self.ITEM_INFO:
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data[key] = self.item.get(key)
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if self.item.get('series'):
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data['isEpisode'] = True
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data['directorSort'] = [get_name_sort(n) for n in self.item.get('director', [])]
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data['isEpisode'] = 'isEpisode' in data \
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or data.get('season') != None \
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or data.get('episode') != None \
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or data.get('episodes') not in ([], None) \
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or (data.get('seriesTitle') != None and data.get('episodeTitle') != None)
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if data['isEpisode'] and data['seriesYear'] == None:
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data['seriesYear'] = data['year']
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data['type'] = 'unknown'
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if 'extension' in data and data['extension']:
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data['extension'] = data['extension'].lower()
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for type in ox.movie.EXTENSIONS:
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if data['extension'] in ox.movie.EXTENSIONS[type]:
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data['type'] = type
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return data
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def normalize_path(self):
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#FIXME: always use format_path
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if settings.CONFIG['site']['folderdepth'] == 4:
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return ox.movie.format_path(self.get_path_info())
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else:
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path = self.path or ''
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if self.instances.all().count():
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path = self.instances.all()[0].path
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return path
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def update_info(self, info, user):
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#populate name sort with director if unknown
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if info.get('director') and info.get('directorSort'):
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for name, sortname in zip(info['director'], info['directorSort']):
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get_name_sort(name, sortname)
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self.item = item.models.get_item(info, user)
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for key in self.AV_INFO + self.PATH_INFO:
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if key in info:
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self.info[key] = info[key]
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self.parse_info()
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def save(self, *args, **kwargs):
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if self.id and self.info:
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self.path = self.normalize_path()
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if self.item:
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data = self.get_path_info()
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self.extension = data.get('extension')
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self.language = data.get('language')
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self.part = ox.sort_string(unicode(data.get('part') or ''))
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self.part_title = ox.sort_string(unicode(data.get('partTitle')) or '')
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self.type = data.get('type') or 'unknown'
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self.version = data.get('version')
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if self.path:
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self.sort_path = utils.sort_string(self.path)
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self.is_audio = self.type == 'audio'
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self.is_video = self.type == 'video'
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self.is_subtitle = self.path.endswith('.srt')
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if self.type not in ('audio', 'video'):
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self.duration = None
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elif self.duration <= 0:
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self.duration = sum([s.info.get('duration',0)
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for s in self.streams.filter(source=None)])
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if self.is_subtitle:
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self.available = self.data and True or False
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else:
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self.available = not self.uploading and \
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self.streams.filter(source=None, available=True).count() > 0
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super(File, self).save(*args, **kwargs)
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def get_path(self, name):
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h = self.oshash
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return os.path.join('files', h[:2], h[2:4], h[4:6], h[6:], name)
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def contents(self):
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if self.data != None:
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self.data.seek(0)
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return self.data.read()
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return None
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def srt(self, offset=0):
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srt = ox.srt.load(self.data.path)
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#subtitles should not overlap
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for i in range(1, len(srt)):
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if srt[i-1]['out'] > srt[i]['in']:
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srt[i-1]['out'] = srt[i]['in']
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def shift(s):
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s['in'] += offset
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s['out'] += offset
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return s
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if offset:
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srt = map(shift, srt)
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return srt
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def editable(self, user):
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p = user.get_profile()
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return p.get_level() in ('admin', 'staff') or \
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self.instances.filter(volume__user=user).count() > 0 or \
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(not self.item or self.item.user == user)
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def save_chunk(self, chunk, chunk_id=-1, done=False):
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if not self.available:
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config = settings.CONFIG['video']
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stream, created = Stream.objects.get_or_create(
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file=self,
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resolution=max(config['resolutions']),
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format=config['formats'][0])
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if created:
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stream.video.name = stream.path(stream.name())
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ox.makedirs(os.path.dirname(stream.video.path))
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with open(stream.video.path, 'w') as f:
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f.write(chunk.read())
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stream.save()
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else:
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with open(stream.video.path, 'a') as f:
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#FIXME: should check that chunk_id/offset is right
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f.write(chunk.read())
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if done:
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stream.available = True
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stream.save()
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return True
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return False
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def json(self, keys=None, user=None):
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resolution = (self.width, self.height)
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if resolution == (0, 0) or self.type != 'video':
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resolution = None
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duration = self.duration
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if self.type != 'video':
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duration = None
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data = {
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'audioCodec': self.audio_codec,
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'available': self.available,
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'duration': duration,
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'framerate': self.framerate,
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'id': self.oshash,
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'instances': [i.json() for i in self.instances.all()],
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'path': self.path,
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'resolution': resolution,
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'samplerate': self.samplerate,
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'selected': self.selected,
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'size': self.size,
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'type': self.type,
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'videoCodec': self.video_codec,
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'wanted': self.wanted,
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}
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for key in self.PATH_INFO:
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data[key] = self.info.get(key)
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data['users'] = list(set([i['user'] for i in data['instances']]))
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if keys:
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for k in data.keys():
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if k not in keys:
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del data[k]
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return data
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def all_paths(self):
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return [self.path] + [i.path for i in self.instances.all()]
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def delete_frames(self):
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frames = os.path.join(settings.MEDIA_ROOT, self.get_path('frames'))
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if os.path.exists(frames):
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shutil.rmtree(frames)
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def delete_file(sender, **kwargs):
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f = kwargs['instance']
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#FIXME: delete streams here
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if f.data:
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f.data.delete()
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pre_delete.connect(delete_file, sender=File)
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class Volume(models.Model):
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class Meta:
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unique_together = ("user", "name")
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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user = models.ForeignKey(User, related_name='volumes')
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name = models.CharField(max_length=1024)
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def __unicode__(self):
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return u"%s's %s"% (self.user, self.name)
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def json(self):
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return {
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'name': self.name,
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'path': 'unknown',
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'items': self.files.count()
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}
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class Instance(models.Model):
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class Meta:
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unique_together = ("path", "volume")
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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atime = models.IntegerField(default=lambda: int(time.time()), editable=False)
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ctime = models.IntegerField(default=lambda: int(time.time()), editable=False)
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mtime = models.IntegerField(default=lambda: int(time.time()), editable=False)
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path = models.CharField(max_length=2048)
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ignore = models.BooleanField(default=False)
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file = models.ForeignKey(File, related_name='instances')
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volume = models.ForeignKey(Volume, related_name='files')
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def __unicode__(self):
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return u"%s's %s <%s>"% (self.volume.user, self.path, self.file.oshash)
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@property
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def itemId(self):
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return File.objects.get(oshash=self.oshash).itemId
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def json(self):
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return {
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'ignore': self.ignore,
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'path': self.path,
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'user': self.volume.user.username,
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'volume': self.volume.name,
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}
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def frame_path(frame, name):
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ext = os.path.splitext(name)[-1]
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name = "%s%s" % (frame.position, ext)
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return frame.file.get_path(name)
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class Frame(models.Model):
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class Meta:
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unique_together = ("file", "position")
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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file = models.ForeignKey(File, related_name="frames")
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position = models.FloatField()
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frame = models.ImageField(default=None, null=True, upload_to=frame_path)
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'''
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def save(self, *args, **kwargs):
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name = "%d.jpg" % self.position
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if file.name != name:
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#FIXME: frame path should be renamed on save to match current position
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super(Frame, self).save(*args, **kwargs)
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'''
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def __unicode__(self):
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return u'%s/%s' % (self.file, self.position)
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def delete_frame(sender, **kwargs):
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f = kwargs['instance']
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if f.frame:
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f.frame.delete()
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pre_delete.connect(delete_frame, sender=Frame)
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class Stream(models.Model):
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class Meta:
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unique_together = ("file", "resolution", "format")
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file = models.ForeignKey(File, related_name='streams')
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resolution = models.IntegerField(default=96)
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format = models.CharField(max_length=255, default='webm')
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video = models.FileField(default=None, blank=True, upload_to=lambda f, x: f.path(x))
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source = models.ForeignKey('Stream', related_name='derivatives', default=None, null=True)
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available = models.BooleanField(default=False)
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oshash = models.CharField(max_length=16, null=True, db_index=True)
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info = fields.DictField(default={})
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duration = models.FloatField(default=0)
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aspect_ratio = models.FloatField(default=0)
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cuts = fields.TupleField(default=[])
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color = fields.TupleField(default=[])
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volume = models.FloatField(default=0)
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@property
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def timeline_prefix(self):
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return os.path.join(settings.MEDIA_ROOT, self.path())
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return os.path.join(settings.MEDIA_ROOT, self.path(), 'timeline')
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def name(self):
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return u"%sp.%s" % (self.resolution, self.format)
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def __unicode__(self):
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return u"%s/%s" % (self.file, self.name())
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def path(self, name=''):
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return self.file.get_path(name)
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def extract_derivatives(self, rebuild=False):
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config = settings.CONFIG['video']
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for resolution in config['resolutions']:
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for f in config['formats']:
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derivative, created = Stream.objects.get_or_create(file=self.file,
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resolution=resolution, format=f)
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name = derivative.name()
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name = os.path.join(os.path.dirname(self.video.name), name)
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if created:
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derivative.source = self
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derivative.save()
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derivative.video.name = name
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derivative.encode()
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derivative.save()
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elif rebuild or not derivative.available:
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if not derivative.video:
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derivative.video.name = name
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derivative.encode()
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return True
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def encode(self):
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if self.source:
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video = self.source.video.path
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target = self.video.path
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info = ox.avinfo(video)
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if extract.stream(video, target, self.name(), info):
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self.available = True
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else:
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self.available = False
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self.save()
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def make_timeline(self):
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if self.available and not self.source:
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extract.timeline(self.video.path, self.timeline_prefix)
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self.cuts = tuple(extract.cuts(self.timeline_prefix))
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self.color = tuple(extract.average_color(self.timeline_prefix))
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self.volume = extract.average_volume(self.timeline_prefix)
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self.save()
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def save(self, *args, **kwargs):
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if self.video and not self.info:
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self.info = ox.avinfo(self.video.path)
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self.oshash = self.info.get('oshash')
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self.duration = self.info.get('duration', 0)
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if 'video' in self.info and self.info['video']:
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if 'display_aspect_ratio' in self.info['video'][0]:
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dar = map(int, self.info['video'][0]['display_aspect_ratio'].split(':'))
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self.aspect_ratio = dar[0] / dar[1]
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else:
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self.aspect_ratio = self.info['video'][0]['width'] / self.info['video'][0]['height']
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else:
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self.aspect_ratio = 128/80
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super(Stream, self).save(*args, **kwargs)
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if self.available and not self.file.available:
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self.file.save()
|
|
|
|
def json(self):
|
|
return {
|
|
'duration': self.duration,
|
|
'aspectratio': self.aspect_ratio,
|
|
}
|
|
|
|
def delete_stream(sender, **kwargs):
|
|
f = kwargs['instance']
|
|
if f.video:
|
|
f.video.delete()
|
|
pre_delete.connect(delete_stream, sender=Stream)
|