293 lines
9.9 KiB
Python
293 lines
9.9 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
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from datetime import datetime
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import os.path
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import random
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import re
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from decimal import Decimal
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import time
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from django.db import models
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from django.db.models import Q
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from django.contrib.auth.models import User
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from django.core.files.base import ContentFile
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from django.utils import simplejson as json
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from django.conf import settings
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from oxdjango import fields
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import ox
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from ox import stripTags
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from ox.normalize import canonicalTitle, canonicalName
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from firefogg import Firefogg
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import chardet
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from backend import utils
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from pandora.backend.models import Item
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import extract
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def parse_decimal(string):
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string = string.replace(':', '/')
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if '/' not in string:
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string = '%s/1' % string
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d = string.split('/')
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return Decimal(d[0]) / Decimal(d[1])
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def file_path(f, name):
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h = f.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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class File(models.Model):
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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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verified = models.BooleanField(default=False)
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oshash = models.CharField(max_length=16, unique=True)
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item = models.ForeignKey(Item, related_name='files')
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name = models.CharField(max_length=2048, default="") # canoncial path/file
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sort_name = models.CharField(max_length=2048, default="") # sort path/file name
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part = models.CharField(default="", max_length=255)
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version = models.CharField(default="", max_length=255) # sort path/file name
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language = models.CharField(default="", max_length=8)
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season = models.IntegerField(default=-1)
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episode = models.IntegerField(default=-1)
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size = models.BigIntegerField(default=0)
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duration = models.IntegerField(default=0)
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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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is_audio = models.BooleanField(default=False)
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is_video = models.BooleanField(default=False)
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is_extra = models.BooleanField(default=False)
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is_main = models.BooleanField(default=False)
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is_subtitle = models.BooleanField(default=False)
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is_version = models.BooleanField(default=False)
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def __unicode__(self):
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return self.name
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def save(self, *args, **kwargs):
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if self.name and not self.sort_name:
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self.sort_name = canonicalTitle(self.name)
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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']:
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self.video_codec = self.info['video'][0]['codec']
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self.width = self.info['video'][0]['width']
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self.height = self.info['video'][0]['height']
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self.framerate = self.info['video'][0]['framerate']
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if 'display_aspect_ratio' in self.info['video'][0]:
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self.display_aspect_ratio = self.info['video'][0]['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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else:
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self.is_video = False
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if 'audio' in self.info and self.info['audio']:
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self.audio_codec = self.info['audio'][0]['codec']
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self.samplerate = self.info['audio'][0]['samplerate']
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self.channels = self.info['audio'][0]['channels']
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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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if self.framerate:
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self.pixels = int(self.width * self.height * float(parse_decimal(self.framerate)) * self.duration)
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if not self.is_audio and not self.is_video and self.name.endswith('.srt'):
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self.is_subtitle = True
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if self.name and self.name.startswith('Extras/'):
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self.is_extra = True
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self.is_main = False
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else:
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self.is_extra = False
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self.is_main = True
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super(File, self).save(*args, **kwargs)
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def json(self):
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r = {}
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for k in self:
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r[k] = unicode(self[k])
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return r
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#upload and data handling
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video = models.FileField(null=True, blank=True, upload_to=lambda f, x: file_path(f, '%s.webm'%settings.VIDEO_PROFILE))
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data = models.FileField(null=True, blank=True, upload_to=lambda f, x: file_path(f, 'data.raw'))
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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):
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def _detectEncoding(fp):
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bomDict={ # bytepattern : name
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(0x00, 0x00, 0xFE, 0xFF) : "utf_32_be",
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(0xFF, 0xFE, 0x00, 0x00) : "utf_32_le",
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(0xFE, 0xFF, None, None) : "utf_16_be",
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(0xFF, 0xFE, None, None) : "utf_16_le",
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(0xEF, 0xBB, 0xBF, None) : "utf_8",
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}
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# go to beginning of file and get the first 4 bytes
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oldFP = fp.tell()
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fp.seek(0)
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(byte1, byte2, byte3, byte4) = tuple(map(ord, fp.read(4)))
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# try bom detection using 4 bytes, 3 bytes, or 2 bytes
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bomDetection = bomDict.get((byte1, byte2, byte3, byte4))
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if not bomDetection :
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bomDetection = bomDict.get((byte1, byte2, byte3, None))
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if not bomDetection :
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bomDetection = bomDict.get((byte1, byte2, None, None))
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## if BOM detected, we're done :-)
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fp.seek(oldFP)
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if bomDetection :
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return bomDetection
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encoding = 'latin-1'
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#more character detecting magick using http://chardet.feedparser.org/
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fp.seek(0)
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rawdata = fp.read()
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encoding = chardet.detect(rawdata)['encoding']
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fp.seek(oldFP)
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return encoding
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def parseTime(t):
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return ox.time2ms(t.replace(',', '.')) / 1000
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srt = []
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f = open(self.data.path)
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encoding = _detectEncoding(f)
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data = f.read()
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f.close()
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data = data.replace('\r\n', '\n')
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try:
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data = unicode(data, encoding)
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except:
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try:
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data = unicode(data, 'latin-1')
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except:
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print "failed to detect encoding, giving up"
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return srt
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srts = re.compile('(\d\d:\d\d:\d\d[,.]\d\d\d)\s*-->\s*(\d\d:\d\d:\d\d[,.]\d\d\d)\s*(.+?)\n\n', re.DOTALL)
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for s in srts.findall(data):
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_s = {'in': parseTime(s[0]), 'out': parseTime(s[1]), 'text': s[2].strip()}
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srt.append(_s)
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return srt
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def editable(self, user):
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#FIXME: check that user has instance of this file
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return True
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def save_chunk(self, chunk, chunk_id=-1):
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if not self.available:
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if not self.video:
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self.video.save('%s.webm'%settings.VIDEO_PROFILE, chunk)
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else:
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f = open(self.video.path, 'a')
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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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f.close()
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return True
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return False
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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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class FileInstance(models.Model):
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class Meta:
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unique_together = ("name", "folder", "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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name = models.CharField(max_length=2048)
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folder = models.CharField(max_length=255)
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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.name, 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 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 file_path(frame.file, 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 at %s' % (self.file, self.position)
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