forked from 0x2620/pandora
streams per file and no longer per item
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j
parent
f228a4a5e5
commit
fc26ff01bd
10 changed files with 178 additions and 126 deletions
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@ -392,8 +392,9 @@ class Item(models.Model):
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def get_stream(self):
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stream = {}
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if self.streams.all().count():
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s = self.streams.all()[0]
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videos = self.main_videos()
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for video in videos:
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s = video.streams.all()[0]
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if s.video and s.info:
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stream['duration'] = s.info['duration']
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if 'video' in s.info and s.info['video']:
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@ -404,8 +405,6 @@ class Item(models.Model):
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stream['baseUrl'] = '/%s' % self.itemId
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else:
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stream['baseUrl'] = os.path.dirname(s.video.url)
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stream['resolutions'] = sorted(list(set(map(lambda s: int(os.path.splitext(s['profile'])[0][:-1]), self.streams.all().values('profile')))))
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stream['formats'] = list(set(map(lambda s: os.path.splitext(s['profile'])[1][1:], self.streams.all().values('profile'))))
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return stream
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def get_layers(self, user=None):
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@ -451,6 +450,11 @@ class Item(models.Model):
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if not keys or 'poster' in keys:
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i['poster'] = self.get_poster()
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videos = self.main_videos()
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i['duration'] = sum([v.duration for v in videos])
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i['durations'] = [v.duration for v in videos]
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i['apsectRatio'] = i.get('aspectratio')
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#only needed by admins
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if keys and 'posters' in keys:
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i['posters'] = self.get_posters()
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@ -561,6 +565,7 @@ class Item(models.Model):
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'size',
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'bitrate',
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'numberoffiles',
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'parts',
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'published',
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'modified',
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'popularity',
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@ -627,12 +632,13 @@ class Item(models.Model):
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if len(videos) > 0:
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s.duration = sum([v.duration for v in videos])
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s.resolution = videos[0].width * videos[0].height
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s.aspectratio = int(1000 * utils.parse_decimal(v.display_aspect_ratio))
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s.aspectratio = float(utils.parse_decimal(v.display_aspect_ratio))
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#FIXME: should be average over all files
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if 'bitrate' in videos[0].info:
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s.bitrate = videos[0].info['bitrate']
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s.pixels = sum([v.pixels for v in videos])
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s.numberoffiles = self.files.all().count()
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s.parts = len(videos)
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s.size = sum([v.size for v in videos]) #FIXME: only size of movies?
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s.volume = 0
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else:
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@ -645,6 +651,7 @@ class Item(models.Model):
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s.files = None
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s.size = None
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s.volume = None
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s.parts = 0
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if 'color' in self.data:
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s.hue, s.saturation, s.lightness = self.data['color']
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@ -695,24 +702,34 @@ class Item(models.Model):
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'''
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Video related functions
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'''
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def frame(self, position, height=128):
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stream = self.streams.filter(profile=settings.VIDEO_PROFILE)
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if stream.count()>0:
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stream = stream[0]
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else:
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return None
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height = min(height, stream.height())
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path = os.path.join(settings.MEDIA_ROOT, self.path(),
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'frames', "%dp"%height, "%s.jpg"%position)
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if not os.path.exists(path) and stream.video:
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extract.frame(stream.video.path, path, position, height)
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if not os.path.exists(path):
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path = os.path.join(settings.STATIC_ROOT, 'png/frame.broken.png')
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return path
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offset = 0
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videos = self.main_videos()
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for video in videos:
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if video.duration + offset < position:
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offset += video.duration
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else:
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position = position - offset
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stream = video.streams.filter(resolution=settings.VIDEO_RESOLUTIONS[0],
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format=settings.VIDEO_FORMATS[0])
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if stream.count()>0:
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stream = stream[0]
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else:
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return None
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height = min(height, stream.resolution)
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path = os.path.join(settings.MEDIA_ROOT, stream.path(),
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'frames', "%dp"%height, "%s.jpg"%position)
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if not os.path.exists(path) and stream.video:
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extract.frame(stream.video.path, path, position, height)
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if not os.path.exists(path):
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return None
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return path
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@property
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def timeline_prefix(self):
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videos = self.main_videos()
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if len(videos) == 1:
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return os.path.join(settings.MEDIA_ROOT, videos[0].path('timeline'))
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return os.path.join(settings.MEDIA_ROOT, self.path(), 'timeline')
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def main_videos(self):
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@ -890,9 +907,7 @@ class Item(models.Model):
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return None
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def make_timeline(self):
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stream = self.streams.filter(profile=settings.VIDEO_PROFILE)
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if stream.count() > 0 and stream[0].video:
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extract.timeline(stream[0].video.path, self.timeline_prefix)
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print "FIXME, needs to build timeline from parts"
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def make_poster(self, force=False):
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if not self.poster or force:
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@ -1109,53 +1124,6 @@ class Facet(models.Model):
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super(Facet, self).save(*args, **kwargs)
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class Stream(models.Model):
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class Meta:
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unique_together = ("item", "profile")
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item = models.ForeignKey(Item, related_name='streams')
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profile = models.CharField(max_length=255, default='96p.webm')
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video = models.FileField(default=None, blank=True, upload_to=lambda f, x: f.path())
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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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info = fields.DictField(default={})
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def __unicode__(self):
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return u"%s/%s" % (self.item.itemId, self.profile)
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def path(self):
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return self.item.path(self.profile)
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def height(self):
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return int(self.profile.split('p')[0])
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def extract_derivatives(self):
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for profile in settings.VIDEO_DERIVATIVES:
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derivative, created = Stream.objects.get_or_create(profile=profile, item=self.item)
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if created:
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derivative.source = self
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derivative.video.name = self.video.name.replace(self.profile, profile)
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derivative.encode()
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derivative.save()
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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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profile = self.profile
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info = ox.avinfo(video)
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if extract.stream(video, target, profile, info):
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self.available=True
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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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super(Stream, self).save(*args, **kwargs)
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class PosterUrl(models.Model):
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class Meta:
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