use oxtimelines

README

@@ -29,7 +29,7 @@ Get code from bazzar
     cd /srv/
     bzr branch http://code.0x2620.org/pandora pandora
     cd pandora
-    virtualenv .
+    virtualenv --system-site-packages .
     pip -E . install -r requirements.txt
 
     cd static

pandora/archive/extract.py

@@ -16,6 +16,7 @@ import numpy as np
 import Image
 import ox
 import ox.image
+from ox.utils import json
 
 img_extension='jpg'
 
@@ -303,13 +304,27 @@ def resize_image(image_source, image_output, width=None, size=None):
         output.save(image_output)
 
 
-def timeline(video, prefix):
-    cmd = ['oxtimeline', '-i', video, '-o', prefix]
-    p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+def timeline(
+        video, prefix,
+        modes=['antialias', 'slitscan', 'keyframes', 'audio', 'data'],
+        #modes=['antialias', 'slitscan', 'audio', 'data'],
+        size=[64, 16]
+    ):
+    if isinstance(video, basestring):
+        video = [video]
+    cmd = ['../bin/oxtimelines',
+        '-s', ','.join(map(str, reversed(sorted(size)))),
+        '-m', ','.join(modes),
+        '-o', prefix,
+        '-c', os.path.join(prefix, 'cuts.json'),
+    ] + video
+    #p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    print cmd
+    p = subprocess.Popen(cmd)
     p.wait()
 
 
-def average_color(prefix, start=0, end=0):
+def average_color(prefix, start=0, end=0, mode='antialias'):
     height = 64
     frames = 0
     pixels = []
@@ -318,7 +333,9 @@ def average_color(prefix, start=0, end=0):
     if end:
         start = int(start * 25)
         end = int(end * 25)
-    timelines = sorted(filter(lambda t: t!= '%s%sp.png'%(prefix,height), glob("%s%sp*.png"%(prefix, height))))
+    mode = 'timeline' + mode
+    timelines = sorted(filter(lambda t: t!= '%s%s%sp.jpg'%(prefix, mode, height),
+                              glob("%s%s%sp*.jpg"%(prefix, mode, height))))
     for image in timelines:
         start_offset = 0
         if start and frames + 1500 <= start:
@@ -352,8 +369,7 @@ def average_color(prefix, start=0, end=0):
 
 
 def average_volume(prefix, start=0, end=0):
-    #FIXME: actually compute volume
-    return 0
+    return average_color(prefix, start, end, 'audio')[2]
 
 
 def get_distance(rgb0, rgb1):
@@ -363,31 +379,11 @@ def get_distance(rgb0, rgb1):
 
 
 def cuts(prefix):
-    cuts = []
-    distances = [0]
-    fps = 25
-    frames = 0
-    height = 64
-    width = 1500
-    pixels = []
-    timelines = sorted(filter(lambda t: t!= '%s%sp.png'%(prefix,height), glob("%s%sp*.png"%(prefix, height))))
-    for image in timelines:
-        timeline = Image.open(image)
-        frames += timeline.size[0]
-        pixels.append(timeline.load())
-    for frame in range(1, frames):
-        x = frame % width
-        distance = 0
-        image0 = int((frame - 1) / width)
-        image1 = int(frame / width)
-        for y in range(height):
-            rgb0 = pixels[image0][(x - 1) % width, y]
-            rgb1 = pixels[image1][x, y]
-            distance += get_distance(rgb0, rgb1)
-        distance = distance / height
-        distances.append(distance)
-        if distance >= 0.025 and abs(distance - distances[frame - 1]) >= 0.05:
-            cuts.append(frame / fps)
+    fname = os.path.join(prefix, 'cuts.json')
+    if not os.path.exists(fname):
+        return []
+    with open(fname) as f:
+        cuts = json.load(f)
     return cuts
 
 

pandora/archive/management/commands/migrate_timelines.py

@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+# vi:si:et:sw=4:sts=4:ts=4
+import os
+import re
+
+from django.core.management.base import BaseCommand
+from django.conf import settings
+import monkey_patch.models
+from ... import models
+
+
+class Command(BaseCommand):
+    """
+    """
+    help = 'migrate timelines to new path'
+    args = ''
+
+    def handle(self, **options):
+        for root, folders, files in os.walk(settings.MEDIA_ROOT):
+            for f in files:
+                f = os.path.join(root, f)
+                base, ext = os.path.splitext(os.path.basename(f))
+                if base.startswith('timeline') and ext == '.png':
+                    if base in ('timeline.overview', 'timeline.overview.8'):
+                        print 'delete', f
+                        os.unlink(f)
+                    else:
+                        n = re.compile('timeline(\d+)p(\d+)').findall(base)
+                        if not n:
+                            n = re.compile('timeline(\d+)p').findall(base)
+                            target = 'timelineantialias%sp.jpg' % n[0]
+                            print f, target
+                            target = os.path.join(os.path.dirname(f), target)
+                            os.rename(f, target)
+                        else:
+                            n = tuple(map(int, n[0]))
+                            target = 'timelineantialias%dp%d.jpg' % n
+                            print f, target
+                            target = os.path.join(os.path.dirname(f), target)
+                            os.rename(f, target)

pandora/archive/models.py

@@ -393,9 +393,11 @@ class Stream(models.Model):
 
     cuts = fields.TupleField(default=[])
     color = fields.TupleField(default=[])
+    volume = models.FloatField(default=0)
 
     @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):
@@ -438,6 +440,7 @@ class Stream(models.Model):
             extract.timeline(self.video.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):

pandora/item/management/commands/rebuild_timelines.py

@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+# vi:si:et:sw=4:sts=4:ts=4
+
+import os
+from os.path import join, dirname, basename, splitext, exists
+import time
+
+from django.core.management.base import BaseCommand, CommandError
+from django.conf import settings
+
+import monkey_patch.models
+from ... import models
+
+
+class Command(BaseCommand):
+    """
+    rebuild timeline for all items.
+    """
+    help = 'rebuild all timeines(use after updating oxtimelines)'
+    args = ''
+
+    def handle(self, **options):
+        offset = 0
+        chunk = 50
+        count = pos = models.Item.objects.count()
+        while offset <= count:
+            for i in models.Item.objects.all().order_by('id')[offset:offset+chunk]:
+                print pos, i.itemId
+                for s in i.streams():
+                    s.make_timeline()
+                i.update_timeline()
+                pos -= 1
+            offset += chunk
+            time.sleep(30) #keep load down

pandora/item/management/commands/rebuildcache.py

@@ -16,7 +16,8 @@ class Command(BaseCommand):
     """
     rebuild sort/search cache for all items.
     """
-    help = 'listen to rabbitmq and execute encoding tasks.'
+    help = 'rebuild sort/search cache for all items.'
+    """
     args = ''
 
     def handle(self, **options):

pandora/item/models.py

@@ -29,7 +29,7 @@ import ox.image
 import managers
 import utils
 import tasks
-from .timelines import join_timelines
+from .timelines import join_tiles
 from data_api import external_data
 
 from archive import extract
@@ -900,8 +900,8 @@ class Item(models.Model):
     def timeline_prefix(self):
         videos = self.streams()
         if len(videos) == 1:
-            return os.path.join(settings.MEDIA_ROOT, videos[0].path('timeline'))
-        return os.path.join(settings.MEDIA_ROOT, self.path(), 'timeline')
+            return os.path.join(settings.MEDIA_ROOT, videos[0].path(''))
+        return os.path.join(settings.MEDIA_ROOT, self.path())
 
     def get_files(self, user):
         files = self.files.all().select_related()
@@ -1025,19 +1025,20 @@ class Item(models.Model):
         if streams.count() == 1:
             self.data['color'] = streams[0].color
             self.data['cuts'] = streams[0].cuts
+            self.data['volume'] = streams[0].volume
         else:
             #self.data['color'] = extract.average_color(self.timeline_prefix)
-            #self.data['cuts'] = extract.cuts(self.timeline_prefix)
-            self.data['cuts'] = []
+            self.data['cuts'] = extract.cuts(self.timeline_prefix)
+            self.data['volume'] = 0
             offset = 0
             color = [0, 0, 0]
             n = streams.count()
             for s in streams:
-                for c in s.cuts:
-                    self.data['cuts'].append(c+offset)
+                self.data['volume'] = s.volume * s.duration
                 color = map(lambda a,b: (a+b)/n, color,ox.image.getRGB(s.color))
                 offset += s.duration
             self.data['color'] = ox.image.getHSL(color)
+            self.data['volume'] /= offset
         #extract.timeline_strip(self, self.data['cuts'], stream.info, self.timeline_prefix[:-8])
         self.select_frame()
         self.make_poster(True)
@@ -1082,7 +1083,7 @@ class Item(models.Model):
         streams = self.streams()
         if streams.count() > 1:
             timelines = [s.timeline_prefix for s in self.streams()]
-            join_timelines(timelines, self.timeline_prefix)
+            join_tiles(timelines, self.timeline_prefix)
         else:
             #remove joined timeline if it was created at some point
             for f in glob(os.path.join(settings.MEDIA_ROOT, self.path(), 'timeline*.png')):

pandora/item/timelines.py

@@ -1,114 +1,257 @@
 # -*- coding: utf-8 -*-
 # vi:si:et:sw=4:sts=4:ts=4
+
 from __future__ import division, with_statement
+
+import math
 import os
-from glob import glob
+import re
 
 import Image
-
-import ox
-from utils import sorted_strings
+from ox.utils import json
 
 
-def getTiles(timeline_prefix, height=64):
-    files = glob('%s%sp*.png' % (timeline_prefix, height))
-    return sorted_strings(filter(lambda f: f!='%s%sp.png' % (timeline_prefix, height), files))
+def join_tiles(source_paths, target_path):
+    '''
+    This is an implementation of a join_tiles function for new-style timelines.
+    Timelines of files will be read from source_paths, the timeline of the item will
+    be written to target_path.
+    '''
 
-def loadTimeline(timeline_prefix, height=64):
-    files = getTiles(timeline_prefix, height)
-    f = Image.open(files[0])
-    width = f.size[0]
-    f = Image.open(files[-1])
-    duration = f.size[0] + (len(files)-1)*width
-    timeline = Image.new("RGB", (duration, height))
-    pos = 0
-    for f in files:
-        part = Image.open(f)
-        timeline.paste(part, (pos, 0, pos + part.size[0], height))
-        pos += part.size[0]
-    return timeline
+    def divide(num, by):
+        # divide(100, 3) -> [33, 33, 34]
+        arr = []
+        div = int(num / by)
+        mod = num % by
+        for i in range(int(by)):
+            arr.append(div + (i > by - 1 - mod))
+        return arr
 
-def makeTiles(timeline_prefix, height=16, width=3600):
-    files = getTiles(timeline_prefix, 64)
+    def get_file_info(file_name):
+        for mode in modes:
+            if re.match('^timeline' + mode + '64p\d+\.jpg', file_name):
+                return {
+                    'file': file_name,
+                    'mode': mode,
+                    'index': int(file_name[11 + len(mode):-4])
+                }
+        return None
+
+    def save_and_open(data):
+        # whenever a large tile is done or needed,
+        # this function saves the previous large tile
+        # (if any) and opens the next one (if any).
+        # in between, whenever required, small tiles
+        # are opened, rendered and saved, and the
+        # large full tile is being generated.
+        # 'keyframes' are only rendered in large size,
+        # 'keyframeswide' only resized to small size.
+        image_mode = 'L' if mode == 'audio' else 'RGB'
+        small_mode = 'keyframes' if mode == 'keyframeswide' else mode
+        large_tile_i = int(target_w / large_tile_w)
+        # save previous large tile
+        if large_tile_i > 0:
+            large_tile_i -= 1
+            if mode != 'keyframeswide':
+                image_file = '%stimeline%s%dp%d.jpg' % (
+                    target_path, mode, large_tile_h, large_tile_i
+                )
+                data['target_images']['large'].save(image_file)
+                #print image_file
+            if mode != 'keyframes':
+                # open small tile
+                small_tile_i = int(large_tile_i / 60)
+                small_tile_x = (large_tile_i % 60) * 60
+                if small_tile_x == 0:
+                    if small_tile_i < small_tile_n - 1:
+                        w = small_tile_w
+                    else:
+                        w = small_tile_last_w
+                    data['target_images']['small'] = Image.new(image_mode, (w, small_tile_h))
+                # paste large tile into small tile
+                w = 60 if large_tile_i < large_tile_n - 1 else small_tile_last_w % 60
+                data['target_images']['large'] = data['target_images']['large'].resize(
+                    (w, small_tile_h), Image.ANTIALIAS
+                )
+                data['target_images']['small'].paste(
+                    data['target_images']['large'], (small_tile_x, 0)
+                )
+                # save small tile
+                if small_tile_x == small_tile_w - 60 or large_tile_i == large_tile_n - 1:
+                    image_file = '%stimeline%s%dp%d.jpg' % (
+                        target_path, small_mode, small_tile_h, small_tile_i
+                    )
+                    data['target_images']['small'].save(image_file)
+                    print image_file
+            if mode == 'antialias':
+                # render full tile
+                resized = data['target_images']['large'].resize((
+                    data['full_tile_widths'][0], large_tile_h
+                ), Image.ANTIALIAS)
+                data['target_images']['full'].paste(resized, (data['full_tile_offset'], 0))
+                data['full_tile_offset'] += data['full_tile_widths'][0]
+                data['full_tile_widths'] = data['full_tile_widths'][1:]
+            large_tile_i += 1
+        # open next large tile
+        if large_tile_i < large_tile_n:
+            w = large_tile_w if large_tile_i < large_tile_n - 1 else large_tile_last_w
+            data['target_images']['large'] = Image.new(image_mode, (w, large_tile_h))
+
+    data = {}
     fps = 25
-    part_step = 60
-    output_width = width
-    width = len(files) * part_step
-    timeline = Image.new("RGB", (width, height))
+    large_tile_w, large_tile_h = 1500, 64
+    small_tile_w, small_tile_h = 3600, 16
+    full_tile_w = 1920
+    modes = ['antialias', 'slitscan', 'keyframes', 'keyframeswide', 'audio']
+    source_files = {}
+    for mode in modes:
+        source_files[mode] = []
 
-    pos = 0
-    for f in sorted_strings(files):
-        part = Image.open(f)
-        part_width = int(part.size[0] / fps) 
-        part = part.resize((part_width, height), Image.ANTIALIAS)
-        timeline.paste(part, (pos, 0, pos+part_width, height))
-        pos += part_width
+    # read files
+    durations = [0] * len(source_paths)
+    frame_n = 0
+    for i, path in enumerate(source_paths):
+        file_info = map(get_file_info, os.listdir(path))
+        file_info = filter(lambda x: x != None, file_info)
+        for info in sorted(file_info, key=lambda x: x['index']):
+            mode = info['mode']
+            source_files[mode].append(path + info['file'])
+            if mode == modes[0]:
+                width = Image.open(source_files[mode][-1]).size[0]
+                durations[i] += width / fps
+                frame_n += width
+    large_tile_n = int(math.ceil(frame_n / large_tile_w)) 
+    large_tile_last_w = frame_n % large_tile_w
+    small_tile_n = int(math.ceil(frame_n / fps / small_tile_w)) 
+    small_tile_last_w = int(math.ceil(frame_n / fps)) % small_tile_w
 
-    timeline = timeline.crop((0, 0, pos, height))
-
-    pos = 0
-    i = 0
-    while pos < timeline.size[0]:
-      end = min(pos+output_width, timeline.size[0])
-      timeline.crop((pos, 0, end, timeline.size[1])).save('%s%sp%04d.png' % (timeline_prefix, timeline.size[1], i))
-      pos += output_width
-      i += 1
-
-def makeTimelineOverview(timeline_prefix, width, inpoint=0, outpoint=0, duration=-1, height=16):
-    input_scale = 25
-    
-    timeline_file = '%s%sp.png' % (timeline_prefix, height)
-    if outpoint > 0:
-        timeline_file = '%s%sp.%d-%d.png' % (timeline_prefix, height, inpoint, outpoint)
-
-    timeline = loadTimeline(timeline_prefix)
-    duration = timeline.size[0]
-
-    if inpoint<=0:
-        inpoint = 0
+    # open full timeline
+    if large_tile_n == 1:
+        data['full_tile_widths'] = [large_tile_last_w]
     else:
-        inpoint = inpoint * input_scale
-    if outpoint<=0:
-        outpoint = duration
-    else:
-        outpoint = outpoint * input_scale
+        w = full_tile_w
+        n = large_tile_n
+        if large_tile_last_w < large_tile_w:
+            factor = full_tile_w / frame_n
+            last_w = int(round(large_tile_last_w * factor))
+            w -= last_w
+            n -= 1
+        data['full_tile_widths'] = divide(w, n)
+        if large_tile_last_w < large_tile_w:
+            data['full_tile_widths'].append(last_w)
+    data['full_tile_offset'] = 0
+    full_tile_image = Image.new('RGB', (full_tile_w, large_tile_h))
 
-    timeline = timeline.crop((inpoint, 0, outpoint, timeline.size[1])).resize((width, height), Image.ANTIALIAS)
-    timeline.save(timeline_file)
+    # main loop
+    data['target_images'] = {'large': None, 'small': None, 'full': full_tile_image}
+    for mode in modes:
+        target_w = 0
+        for source_file in source_files[mode]:
+            source_image = Image.open(source_file)
+            source_w = source_image.size[0]
+            target_x = target_w % large_tile_w
+            if target_x == 0:
+                save_and_open(data)
+            data['target_images']['large'].paste(source_image, (target_x, 0))
+            target_w += source_w
+            if target_x + source_w > large_tile_w:
+                # target tile overflows into next source tile
+                save_and_open(data)
+                target_x -= large_tile_w
+                data['target_images']['large'].paste(source_image, (target_x, 0))
+        target_w += source_w
+        save_and_open(data)
 
-def join_timelines(timelines, prefix):
-    height = 64
-    width = 1500
+    # save full timelines
+    image_file = '%stimelineantialias%dp.jpg' % (target_path, large_tile_h)
+    data['target_images']['full'].save(image_file)
+    #print image_file
+    image_file = '%stimelineantialias%dp.jpg' % (target_path, small_tile_h)
+    data['target_images']['full'].resize(
+        (full_tile_w, small_tile_h), Image.ANTIALIAS
+    ).save(image_file)
+    #print image_file
 
-    ox.makedirs(os.path.dirname(prefix))
-    for f in glob('%s*'%prefix):
-        os.unlink(f)
+    # join cuts
+    cuts = []
+    offset = 0
+    for i, path in enumerate(source_paths):
+        with open(os.path.join(path, 'cuts.json'), 'r') as f:
+            path_cuts = json.load(f)
+        if i > 0:
+            cuts.append(offset)
+        for cut in path_cuts:
+            cuts.append(offset + cut)
+        offset += durations[i]
+    with open(os.path.join(target_path, 'cuts.json'), 'w') as f:
+        # avoid float rounding artefacts
+        f.write('[' + ', '.join(map(lambda x: '%.2f' % x, cuts)) + ']')
 
-    tiles = [] 
-    for timeline in timelines:
-        tiles += getTiles(timeline, height)
+def split_tiles(path, paths, durations):
 
-    timeline = Image.new("RGB", (2 * width, height))
+    def is_timeline_file(file_name):
+        return file_name.startswith('timeline') and file_name.endswith('.png')
 
-    pos = 0
-    i = 0
-    for tile in tiles:
-        tile = Image.open(tile)
-        timeline.paste(tile, (pos, 0, pos+tile.size[0], height))
-        pos += tile.size[0]
-        if pos >= width:
-            timeline_name = '%s%sp%04d.png' % (prefix, height, i)
-            timeline.crop((0, 0, width, height)).save(timeline_name)
-            i += 1
-            if pos > width:
-                t = timeline.crop((width, 0, pos, height))
-                timeline.paste(t, (0, 0, t.size[0], height))
-            pos -= width
-    if pos:
-       timeline_name = '%s%sp%04d.png' % (prefix, height, i)
-       timeline.crop((0, 0, pos, height)).save(timeline_name)
+    file_names = filter(is_timeline_file, os.listdir(path))
+    tiles = {}
+    for file_name in file_names:
+        mode = re.split('\d+', file_name[8:])[0]
+        print file_name, mode
+        split = re.split('[a-z]+', file_name[8 + len(mode):-4])
+        height, index = map(lambda x: int(x) if len(x) else -1, split)
+        if not mode in tiles:
+            tiles[mode] = {}
+        if not height in tiles[mode]:
+            tiles[mode][height] = 0
+        if index + 1 > tiles[mode][height]:
+            tiles[mode][height] = index + 1
+    print tiles
 
-    makeTiles(prefix, 16, 3600)
-    makeTimelineOverview(prefix, 1920, height=16)
-    makeTimelineOverview(prefix, 1920, height=64)
+    # for each mode
+    for mode in tiles:
+        image_mode = 'L' if mode == 'audio' else 'RGB'
+        # and for each size of that mode
+        for i, height in enumerate(tiles[mode]):
+            tile_width = 1500 if i == 0 else 3600
+            px_per_sec = 25 if i == 0 else 1
+            target_images = []
+            target_data = []
+            # and for each split item
+            for item_index, duration in enumerate(durations):
+                tile_index = 0
+                px = int(math.ceil(duration * px_per_sec))
+                # create a flat list of all target images   
+                # (and store the split item and tile index)
+                while px:
+                    width = tile_width if px > tile_width else px
+                    target_images.append(
+                        Image.new(image_mode, (width, height))
+                    )
+                    target_data.append(
+                        {'item': item_index, 'tile': tile_index}
+                    )
+                    tile_index += 1
+                    px -= width
+            target_index = 0
+            offset = 0
+            # for each source tile
+            for source_index in range(tiles[mode][height]):
+                source_image = Image.open('%stimeline%s%dp%d.png' % (
+                    path, mode, height, source_index
+                ))
+                source_width = source_image.size[0]
+                target_width = target_images[target_index].size[0]
+                target_images[target_index].paste(source_image, (offset, 0))
+                # paste it into as many target tiles as needed
+                while source_width + offset > target_width:
+                    offset -= target_width
+                    target_index += 1
+                    target_width = target_images[target_index].size[0]
+                    target_images[target_index].paste(source_image, (offset, 0))
+            for i, target_image in enumerate(target_images):
+                file_name = '%stimeline%s%dp%d' % (
+                    paths[target_data[i]['item']], mode, height, target_data[i]['tile']
+                )
+                # target_image.save(file_name)
+                print file_name, target_image.size
 

pandora/item/urls.py

@@ -9,8 +9,8 @@ urlpatterns = patterns("item.views",
     (r'^(?P<id>[A-Z0-9].*)/(?P<size>\d+)p(?P<position>[\d\.]*)\.jpg$', 'frame'),
 
     #timelines
-    (r'^(?P<id>[A-Z0-9].*)/timeline(?P<size>\d+)p(?P<position>\d+)\.png$', 'timeline'),
-    (r'^(?P<id>[A-Z0-9].*)/timeline(?P<size>\d+)p\.png$', 'timeline_overview'),
+    (r'^(?P<id>[A-Z0-9].*)/timeline(?P<mode>[a-z]*)(?P<size>\d+)p(?P<position>\d+)\.(?P<format>png|jpg)$', 'timeline'),
+    (r'^(?P<id>[A-Z0-9].*)/timeline(?P<mode>[a-z]*)(?P<size>\d+)p\.(?P<format>png|jpg)$', 'timeline'),
 
     #video
     (r'^(?P<id>[A-Z0-9].*)/(?P<resolution>\d+)p(?P<index>\d*)\.(?P<format>webm|ogv|mp4)$', 'video'),

pandora/item/views.py

@@ -713,20 +713,30 @@ def icon(request, id, size=None):
         response['Cache-Control'] = 'no-cache'
         return response
 
-def timeline(request, id, size, position):
+def timeline(request, id, size, position=-1, format='jpg', mode=None):
     item = get_object_or_404(models.Item, itemId=id)
     if not item.access(request.user):
         return HttpResponseForbidden()
-    timeline = '%s%sp%04d.png' %(item.timeline_prefix, size, int(position))
-    return HttpFileResponse(timeline, content_type='image/png')
 
+    if not mode:
+        mode = 'antialias'
+    modes = [t['id'] for t in settings.CONFIG['timelines']]
+    if mode not in modes:
+        raise Http404
+    modes.pop(modes.index(mode))
 
-def timeline_overview(request, id, size):
-    item = get_object_or_404(models.Item, itemId=id)
-    if not item.access(request.user):
-        return HttpResponseForbidden()
-    timeline = '%s%sp.png' %(item.timeline_prefix, size)
-    return HttpFileResponse(timeline, content_type='image/png')
+    prefix = os.path.join(item.timeline_prefix, 'timeline')
+    def timeline():
+        timeline = '%s%s%sp' % (prefix, mode, size) 
+        if position > -1:
+            timeline += '%d' % int(position)
+        return timeline + '.jpg'
+
+    path = timeline()
+    while modes and not os.path.exists(path):
+        mode = modes.pop()
+        path = timeline()
+    return HttpFileResponse(path, content_type='image/jpeg')
 
 def torrent(request, id, filename=None):
     item = get_object_or_404(models.Item, itemId=id)

requirements.txt

@@ -1,7 +1,7 @@
 -e svn+http://code.djangoproject.com/svn/django/branches/releases/1.3.X#egg=django
 #South
 -e bzr+http://code.0x2620.org/python-ox/#egg=python-ox
--e bzr+http://code.0x2620.org/oxtimeline/#egg=oxtimeline
+-e bzr+http://code.0x2620.org/oxtimelines/#egg=oxtimelines
 simplejson
 chardet
 celery>=2.4.2

static/js/pandora/editor.js

@@ -28,12 +28,10 @@ pandora.ui.editor = function(data) {
             return '/' + pandora.user.ui.item + '/' + pandora.user.ui.videoResolution + 'p' + position + '.jpg';
         },
         getLargeTimelineURL: function(type, i) {
-            type = '';
-            return '/' + pandora.user.ui.item + '/timeline' + type + '64p' + i + '.png';
+            return '/' + pandora.user.ui.item + '/timeline' + type + '64p' + i + '.jpg';
         },
         getSmallTimelineURL: function(type, i) {
-            type = '';
-            return '/' + pandora.user.ui.item + '/timeline' + type + '16p' + i + '.png';
+            return '/' + pandora.user.ui.item + '/timeline' + type + '16p' + i + '.jpg';
         },
         height: pandora.$ui.contentPanel.size(1),
         id: 'editor',

static/js/pandora/list.js

@@ -309,8 +309,7 @@ pandora.ui.list = function() {
                             duration: data.duration,
                             find: isClipsQuery ? clipsQuery.conditions[0].value : '',
                             getImageURL: function(type, i) {
-                                type = '';
-                                return '/' + data.id + '/timeline' + type + '16p' + i + '.png';
+                                return '/' + data.id + '/timeline' + type + '16p' + i + '.jpg';
                             },
                             position: pandora.user.ui.videoPoints[data.id]
                                 ? pandora.user.ui.videoPoints[data.id].position : 0,

static/js/pandora/player.js

@@ -23,8 +23,7 @@ pandora.ui.player = function(data) {
         enableSubtitles: pandora.user.ui.videoSubtitles,
         find: pandora.user.ui.itemFind,
         getLargeTimelineURL: function(type, i) {
-            type = '';
-            return '/' + pandora.user.ui.item + '/timeline' + type + '64p' + i + '.png';
+            return '/' + pandora.user.ui.item + '/timeline' + type + '64p' + i + '.jpg';
         },
         height: pandora.$ui.contentPanel.size(1),
         'in': pandora.user.ui.videoPoints[pandora.user.ui.item]['in'],
@@ -43,7 +42,7 @@ pandora.ui.player = function(data) {
         showLayers: Ox.clone(pandora.user.ui.showLayers),
         showUsers: pandora.site.annotations.showUsers,
         showTimeline: pandora.user.ui.showTimeline,
-        smallTimelineURL: '/' + pandora.user.ui.item + '/timeline16p.png',
+        smallTimelineURL: '/' + pandora.user.ui.item + '/timeline16p.jpg',
         subtitles: data.subtitles,
         timeline: pandora.user.ui.videoTimeline,
         tooltips: true,

static/js/pandora/timeline.js

@@ -24,8 +24,7 @@ pandora.ui.timeline = function(data) {
             return '/' + ui.item + '/' + ui.videoResolution + 'p' + position + '.jpg';
         },
         getLargeTimelineURL: function(type, i) {
-            type = '';
-            return '/' + ui.item + '/timeline' + type + '64p' + i + '.png';
+            return '/' + ui.item + '/timeline' + type + '64p' + i + '.jpg';
         },
         height: pandora.$ui.contentPanel.size(1),
         layers: data.annotations,
@@ -40,7 +39,7 @@ pandora.ui.timeline = function(data) {
         showAnnotationsMap: ui.showAnnotationsMap,
         showLayers: Ox.clone(ui.showLayers),
         showUsers: pandora.site.annotations.showUsers,
-        smallTimelineURL: '/' + ui.item + '/timeline16p.png',
+        smallTimelineURL: '/' + ui.item + '/timeline16p.jpg',
         timeline: ui.videoTimeline,
         timelines: pandora.site.timelines,
         video: data.video,

static/js/pandora/tv.js

@@ -76,7 +76,7 @@ pandora.ui.tv = function() {
                     scaleToFill: pandora.user.ui.videoScale == 'fill',
                     subtitles: videoOptions.subtitles,
                     tooltips: true,
-                    timeline: '/' + result.data.item + '/timeline16p.png',
+                    timeline: '/' + result.data.item + '/timeline16p.jpg',
                     title: pandora.site.site.name + ' — ' + (
                             list || 'All ' + pandora.site.itemName.plural
                         ) + ' — '

static/js/pandora/videoPreview.js

@@ -21,7 +21,7 @@ pandora.ui.videoPreview = function(data) {
             height: data.height,
             position: data.position,
             scaleToFill: true,
-            timeline: '/' + data.id + '/timeline16p.png',
+            timeline: '/' + data.id + '/timeline16p.jpg',
             width: data.width
         });
     return that;

update.sh

@@ -2,6 +2,7 @@
 pandora_repos=http://code.0x2620.org/pandora/
 oxjs_repos=http://code.0x2620.org/oxjs/
 python_ox_repos=http://code.0x2620.org/python-ox/
+oxtimelines_repos=http://code.0x2620.org/oxtimelines/
 
 cd `dirname $0`
 base=`pwd`
@@ -29,6 +30,11 @@ if [ -e src/python-ox ]; then
   new=$new`bzr revno`
 fi
 cd $base
+if [ -e src/oxtimelines ]; then
+  cd src/oxtimelines
+  bzr pull $oxtimelines_repos
+fi
+cd $base
 if [ $current -ne $new ]; then
   cd pandora
   ./manage.py update_static

vm/install.sh

@@ -2,6 +2,6 @@
 CH="chroot $1"
 $CH bzr branch http://code.0x2620.org/pandora /srv/pandora
 $CH bzr branch http://code.0x2620.org/oxjs /srv/pandora/static/oxjs
-$CH virtualenv /srv/pandora
+$CH virtualenv --system-site-packages /srv/pandora
 $CH pip -E /srv/pandora install -r /srv/pandora/requirements.txt