strip timeline
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j
parent
152d2f7cbe
commit
8947e51243
5 changed files with 85 additions and 12 deletions
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@ -260,7 +260,7 @@ def average_color(prefix):
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for i in range(0, len(pixels)):
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p = np.sum(pixels[i], axis=0) / frames
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color += p
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return list(color)
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return list(map(float, color))
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def get_distance(rgb0, rgb1):
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dst = math.sqrt(pow(rgb0[0] - rgb1[0], 2) + pow(rgb0[0] - rgb1[0], 2) + pow(rgb0[0] - rgb1[0], 2))
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@ -292,3 +292,69 @@ def cuts(prefix):
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cuts.append(frame / fps)
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return cuts
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def divide(num, by):
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# >>> divide(100, 3)
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# [33, 33, 34]
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arr = []
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div = int(num / by)
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mod = num % by
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for i in range(by):
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arr.append(div + (i > by - 1 - mod))
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return arr
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def strip_timeline(movie, cuts, info, prefix):
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_debug = False
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duration = info['duration']
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video_height = info['video'][0]['height']
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video_width = info['video'][0]['width']
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video_ratio = video_width / video_height
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line_image = []
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timeline_height = 64
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timeline_width = 1500
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fps = 25
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frames = duration * fps
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if cuts[0] != 0:
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cuts.insert(0, 0)
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cuts = map(lambda x: int(round(x * fps)), cuts)
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for frame in range(frames):
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i = int(frame / timeline_width)
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x = frame % timeline_width
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if x == 0:
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timeline_width = min(timeline_width, frames - frame)
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timeline_image = Image.new('RGB', (timeline_width, timeline_height))
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if frame in cuts:
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c = cuts.index(frame)
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duration = cuts[c + 1] - cuts[c]
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stills = math.ceil(duration / (video_width * timeline_height / video_height))
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widths = divide(duration, stills)
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still = frame
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if _debug:
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print widths, duration, stills, cuts[c], cuts[c + 1]
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for s in range(int(stills)):
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still_ratio = widths[s] / timeline_height
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if video_ratio > still_ratio:
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width = int(round(video_height * still_ratio))
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left = int((video_width - width) / 2)
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box = (left, 0, left + width, video_height)
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else:
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height = int(round(video_width / still_ratio))
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top = int((video_height - height) / 2)
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box = (0, top, video_width, top + height)
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if _debug:
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print frame, 'cut', c, 'still', s, still, 'width', widths[s], box
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#FIXME: why does this have to be still+1?
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frame_image = Image.open(movie.frame((still+1)/fps))
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frame_image = frame_image.crop(box).resize((widths[s], timeline_height), Image.ANTIALIAS)
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for x_ in range(widths[s]):
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line_image.append(frame_image.crop((x_, 0, x_ + 1, timeline_height)))
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still += widths[s]
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timeline_image.paste(line_image[frame], (x, 0))
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if x == timeline_width - 1:
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timeline_file = '%sstrip.64.%04d.png' % (prefix, i)
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if _debug:
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print 'writing', timeline_file
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timeline_image.save(timeline_file)
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@ -415,7 +415,7 @@ class Movie(models.Model):
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@property
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def timeline_prefix(self):
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return os.path.join('stream', movieid_path(self.movieId), 'timeline')
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return os.path.join(settings.MEDIA_ROOT, 'stream', movieid_path(self.movieId), 'timeline')
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def updateStreams(self):
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files = {}
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@ -440,9 +440,10 @@ class Movie(models.Model):
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subprocess.Popen(cmd)
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stream.save()
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extract.timeline(stream.video.path, os.path.join(settings.MEDIA_ROOT, self.timeline_prefix))
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extract.timeline(stream.video.path, self.timeline_prefix)
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stream.extract_derivatives()
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self.metadata['cuts'] = extract.cuts(self.timeline_prefix)
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self.metadata['average_color'] = extract.average_color(self.timeline_prefix)
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#something with poster
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self.available = True
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self.save()
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@ -10,7 +10,7 @@ urlpatterns = patterns("backend.views",
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(r'^(?P<id>.*)/(?P<profile>.*.mp4)$', 'video'),
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(r'^(?P<id>.*)/poster\.(?P<size>\d+)\.jpg$', 'poster'),
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(r'^(?P<id>.*)/poster\.jpg$', 'poster'),
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(r'^(?P<id>.*)/timelines/timeline\.(?P<size>\d+)\.(?P<position>\d+)\.png$', 'timeline'),
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(r'^(?P<id>.*)/timelines/(?P<timeline>.+)\.(?P<size>\d+)\.(?P<position>\d+)\.png$', 'timeline'),
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(r'^(?P<id>.*)/data/(?P<data>.+)\.json$', 'data'),
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(r'^api/$', 'api'),
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)
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@ -540,6 +540,8 @@ def data(request, id, data):
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response = {}
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if data == 'video':
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response = movie.get_stream()
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if data == 'cuts':
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response = movie.metadata.get('cuts', {})
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return render_to_json_response(response)
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#media delivery
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@ -570,9 +572,12 @@ def poster(request, id, size=128):
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poster_path = os.path.join(settings.STATIC_ROOT, 'png/posterDark.48.png')
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return HttpFileResponse(poster_path, content_type='image/jpeg')
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def timeline(request, id, size, position):
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def timeline(request, id, timeline, size, position):
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movie = get_object_or_404(models.Movie, movieId=id)
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timeline = os.path.join(settings.MEDIA_ROOT, '%s.%s.%04d.png' %(movie.timeline_prefix, size, int(position)))
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if timeline == 'strip':
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timeline = '%s.%s.%04d.png' %(movie.timeline_prefix[:-8] + 'strip', size, int(position))
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else:
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timeline = '%s.%s.%04d.png' %(movie.timeline_prefix, size, int(position))
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return HttpFileResponse(timeline, content_type='image/png')
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def video(request, id, profile):
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@ -580,7 +585,5 @@ def video(request, id, profile):
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stream = get_object_or_404(movie.streams, profile=profile)
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path = stream.video.path
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content_type = path.endswith('.mp4') and 'video/mp4' or 'video/webm'
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#url = 'http://127.0.0.1/pandora_media' + path[len(settings.MEDIA_ROOT):]
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#return redirect(url)
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return HttpFileResponse(path, content_type=content_type)
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@ -23,8 +23,9 @@ $(function() {
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posterFrame = 1515,
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points = [2059, 2748],
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videoId = document.location.hash.substring(1),
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videoUrl = "/" + videoId + "/96p." + ($.support.video.webm ? "webm": "mp4");
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videoUrl = "/" + videoId + "/96p." + ($.support.video.webm ? "webm": "mp4").
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stripTimeline = false;
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$.getJSON("/" + videoId + "/data/video.json", function(video) {
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var duration = video.duration,
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videoRatio = video.aspectRatio,
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@ -33,6 +34,8 @@ $(function() {
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position = duration/2;
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videoWidth += videoWidth%2;
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videoUrl = video.baseUrl + "/96p." + ($.support.video.webm ? "webm": "mp4");
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//resizeVideoPlayers(pageWidth);
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Ox.Editor = function(options, self) {
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@ -577,7 +580,7 @@ $(function() {
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if (!self.$tiles[v]) {
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self.$tiles[v] = $("<img>")
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.attr({
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src: "/" + self.options.videoId + "/timelines/" + (window.location.hash == "#strip" ? "strip" : "timeline") + ".64." + v + ".png"
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src: "/" + self.options.videoId + "/timelines/" + (stripTimeline ? "strip" : "timeline") + ".64." + v + ".png"
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})
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.css({
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left: (v * self.tileWidth) + "px"
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