def preprocess(self, data):
"""
Processes popcorn JSON and builds a sane data model out of it
@param data : The popcorn editor project json blob
"""
print 'Beginning pre-process...'
for url, video in data['media'][0]['clipData'].iteritems():
print 'Downloading {0}.'.format(url)
urllib.urlretrieve(url, video['title'])
print 'Finished download!'
print 'All videos downloaded.'
events = [event for track in data['media'][0]['tracks']
for event in track['trackEvents']]
for event in events:
if event['type'] == 'skip' or event['type'] == 'loop':
edit = TrackEdit(event['type'], event['popcornOptions'])
edit.options['start_stamp'] = \
seconds_to_timecode(edit.options['start'])
edit.options['end_stamp'] = \
seconds_to_timecode(edit.options['start'])
edit.options['x_px'] = percent_to_px(
edit.options['left'],
self.size[0]
)
edit.options['y_px'] = percent_to_px(
edit.options['top'],
self.size[1]
)
self.track_edits.append(edit)
if event['type'] == 'text' or event['type'] == 'image':
item = TrackItem(event['type'], event['popcornOptions'])
self.track_items.append(item)
if event['type'] == 'sequencer':
video = TrackVideo(
event['type'],
event['popcornOptions']['source'][0],
event['popcornOptions']
)
self.track_videos.append(video)
self.parse_duration()
cfilter = r'color=c={0}:s={1}x{2}:d={3}'.format(
self.background_color,
self.size[0],
self.size[1],
self.duration
)
call(['ffmpeg', '-filter_complex', cfilter, self.video_name])
def draw_videos(self):
i = 0
for video in reversed(self.track_videos):
overlay = NamedTemporaryFile(
suffix='.avi',
delete=self.delete
)
# Removes all white spaces and non alphanumeric chars from title
video.options['title'] = re.sub(
'[^\w\.]',
'',
video.options['title']
) + '.webm'
# Trim the video if it needs to be
if (video.options['from'] != 0 or
video.options['end'] - video.options['from'] <
video.options['duration']):
self.editor.trim(
video.options['title'],
overlay.name,
seconds_to_timecode(video.options['from']),
seconds_to_timecode(video.options['duration'])
)
else:
overlay.name = video.options['title']
# Also scale the video down to size
scaled_overlay = NamedTemporaryFile(
suffix='.avi',
delete=self.delete
)
self.editor.scale_video(
overlay.name,
scaled_overlay.name,
percent_to_px(video.options['width'], self.size[0]),
percent_to_px(video.options['height'], self.size[1]),
)
overlay.close()
out = NamedTemporaryFile(suffix='.avi', delete=self.delete)
self.overlay_videos(self.current_video.name, scaled_overlay.name,
video.options, out.name)
scaled_overlay.close()
self.current_video = out
i += 1
def draw_videos(self):
i = 0
for video in reversed(self.track_videos):
# Trim the video if it needs to be
if (video.options['from'] == 0 or
video.options['end'] - video.options['from'] <
video.options['duration']):
overlay = NamedTemporaryFile(
suffix='.avi',
delete=self.DELETE_VIDEOS
)
self.editor.trim(
video.options['title'].replace(' ', '-') + '.webm',
overlay.name,
seconds_to_timecode(video.options['from']),
seconds_to_timecode(video.options['duration'])
)
# Also scale the video down to size
if not video.options['height'] == 100 or True:
scaled_overlay = NamedTemporaryFile(
suffix='.avi',
delete=self.DELETE_VIDEOS
)
self.editor.scale_video(
overlay.name,
scaled_overlay.name,
percent_to_px(video.options['width'], self.size[0]),
percent_to_px(video.options['height'], self.size[1]),
)
overlay.close()
else:
scaled_overlay = overlay
out = NamedTemporaryFile(suffix='.avi', delete=self.DELETE_VIDEOS)
self.overlay_videos(self.current_video.name, scaled_overlay.name,
video.options, out.name)
scaled_overlay.close()
self.current_video = out
i += 1
def draw_videos(self):
i = 0
for video in reversed(self.track_videos):
overlay = NamedTemporaryFile(suffix='.avi', delete=self.delete)
# Removes all white spaces and non alphanumeric chars from title
video.options['title'] = re.sub('[^\w\.]', '',
video.options['title']) + '.webm'
# Trim the video if it needs to be
if (video.options['from'] != 0
or video.options['end'] - video.options['from'] <
video.options['duration']):
self.editor.trim(
video.options['title'], overlay.name,
seconds_to_timecode(video.options['from']),
seconds_to_timecode(video.options['duration']))
else:
overlay.name = video.options['title']
# Also scale the video down to size
scaled_overlay = NamedTemporaryFile(suffix='.avi',
delete=self.delete)
self.editor.scale_video(
overlay.name,
scaled_overlay.name,
percent_to_px(video.options['width'], self.size[0]),
percent_to_px(video.options['height'], self.size[1]),
)
overlay.close()
out = NamedTemporaryFile(suffix='.avi', delete=self.delete)
self.overlay_videos(self.current_video.name, scaled_overlay.name,
video.options, out.name)
scaled_overlay.close()
self.current_video = out
i += 1
def draw_videos(self):
i = 0
for video in self.track_videos:
# Trim the video if it needs to be
if (video.options['from'] == 0 or
video.options['end'] - video.options['from'] <
video.options['duration']):
overlay = 'trimmed_' + str(i) + '.avi'
self.editor.trim(
video.options['title'],
overlay,
seconds_to_timecode(video.options['from']),
seconds_to_timecode(video.options['duration'])
)
# Also scale the video down to size
if not video.options['height'] == 100 or True:
scaled_overlay = 'scaled_' + str(i) + '.avi'
self.editor.scale_video(
overlay,
scaled_overlay,
percent_to_px(video.options['width'], self.size[0]),
percent_to_px(video.options['height'], self.size[1]),
)
else:
scaled_overlay = overlay
out = 'video_' + str(i) + '.avi'
self.overlay_videos(self.video_name, scaled_overlay,
video.options, out)
self.video_name = out
i += 1
