586 lines
26 KiB
Python
586 lines
26 KiB
Python
# -*- coding: utf-8 -*-
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# GPL 2008-2014
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from __future__ import division, print_function, absolute_import
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from glob import glob
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from time import time
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import multiprocessing
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from multiprocessing.pool import ThreadPool
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try:
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from PIL import Image
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except:
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import Image
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import math
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import os
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import ox
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from .ffmpeg import Video
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FPS = 25
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class Timelines():
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def __init__(
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self, video_files, tile_path, cuts_path,
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points, modes, sizes, render_wide_tiles, log,
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slit_position=None
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):
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self.video_files = video_files
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self.video_i = 0
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self.video_n = len(self.video_files)
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self.tile_path = tile_path
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self.cuts_path = cuts_path
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self.detect_cuts = cuts_path is not None
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self.points = points
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# modes can contain 'antialias', 'slitscan', 'keyframes', 'audio', 'cuts' and 'data'
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self.modes = modes
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self.render_antialias = 'antialias' in modes
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self.render_slitscan = 'slitscan' in modes
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if 'multiline' in modes:
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info = ox.avinfo(video_files[0])
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self.output_h = sizes[0]
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sizes = [info['video'][0]['height']] + sizes[1:]
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self.render_multiline = info['video'][0]['width']
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self._pool = ThreadPool(multiprocessing.cpu_count())
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else:
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self.render_multiline = False
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self.render_keyframes = 'keyframes' in modes
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self.render_audio = 'audio' in modes
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self.render_cuts = 'cuts' in modes
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self.render_data = 'data' in modes
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self.render_video = len(modes) > 1 if self.render_audio else True
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if slit_position:
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self.frame_center = int(slit_position)
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else:
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self.frame_center = None
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if self.detect_cuts or self.render_cuts or self.render_keyframes:
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self.detect_cuts = True
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self.cuts = [0]
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self.no_cuts = []
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self.short_cut = None
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self.cut_frames = []
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self.max_cut_len = 15000 # 10 minutes
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self.max_distance = 64 * math.sqrt(3 * pow(255, 2))
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else:
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self.cuts = []
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self.full_tile_w = 1920
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self.large_tile_w = 1500
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self.large_tile_h = sizes[0]
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self.large_tile_image = {}
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self.render_small_tiles = False
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if len(sizes) == 2:
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self.small_tile_w = 3600
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self.small_tile_h = sizes[1]
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self.small_tile_image = {}
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self.render_small_tiles = True
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self.render_wide_tiles = render_wide_tiles
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if self.render_audio:
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self.volume = []
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self.log = log
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if log:
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self.profiler = Profiler()
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self.profiler.set_task('ffmpeg')
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ox.makedirs(self.tile_path)
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def render(self):
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if self.points:
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self.in_frame = int(self.points[0] * FPS)
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self.out_frame = int(self.points[1] * FPS)
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self.duration = self.points[1] - self.points[0]
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self.videos = []
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self.file_durations = []
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self.file_frame_n = []
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self.file_points = []
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offset = 0
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for video_file in self.video_files:
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video = Video(
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video_file, self.large_tile_h if self.render_video else 0,
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self.render_audio, self._video_callback, self._done_callback
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)
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duration = video.get_duration()
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points = None
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if self.points:
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in_point = None
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out_point = None
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if self.points[0] > offset and self.points[0] < offset + duration:
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in_point = self.points[0] - offset
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if self.points[1] > offset and self.points[1] < offset + duration:
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out_point = self.points[1] - offset
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if in_point or out_point:
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points = [in_point or 0, out_point or duration]
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self.videos.append(video)
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self.file_durations.append(duration)
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self.file_frame_n.append(int(duration * FPS))
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self.file_points.append(points)
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offset += duration
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#input did not have any video, dont try to render video timelines
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if self.render_video and not video.video:
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self.modes = ['audio']
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self.render_antialias = \
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self.render_slitscan = \
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self.render_keyframes = \
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self.render_video = False
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if not self.points:
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self.in_frame = 0
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self.out_frame = sum(self.file_frame_n)
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self.duration = sum(self.file_durations)
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self.frame_n = self.out_frame - self.in_frame
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if self.render_video:
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frame_size = self.videos[0].get_size()
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self.frame_w = frame_size[0]
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self.frame_ratio = frame_size[0] / frame_size[1]
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if self.frame_center is None:
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self.frame_center = int(frame_size[0] / 2)
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self.large_tile_n = int(math.ceil(self.frame_n / self.large_tile_w))
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self.large_tile_last_w = self.frame_n % self.large_tile_w or self.large_tile_w
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if self.render_small_tiles:
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self.small_tile_n = int(math.ceil(self.duration / self.small_tile_w))
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self.small_tile_last_w = int(math.ceil(self.duration % self.small_tile_w)) or self.small_tile_w
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if self.render_antialias or self.render_audio:
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self._open_full_tile()
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if self.render_keyframes:
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self.large_keyframes_tile_i = -1
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if self.render_small_tiles:
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self.wide = FPS * self.small_tile_h / self.large_tile_h
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self.wide_frame_w = int(round(self.frame_w * self.wide))
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self.frame_i = 0
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self.frame_offset = 0
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self.log and self.profiler.set_task('ffmpeg')
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self.videos[0].decode(self.file_points[0])
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# remove tiles from previous run
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if not self.points:
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#for mode in filter(lambda m: m!= 'audio', self.modes):
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for mode in self.modes:
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type = 'png' if mode == 'data' else 'jpg'
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tiles = glob('%s/timeline%s%dp*.%s' % (self.tile_path, mode, self.large_tile_h, type))
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for f in ox.sorted_strings(tiles)[self.large_tile_i+2:]:
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os.unlink(f)
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if self.render_small_tiles:
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tiles = glob('%s/timeline%s%dp*.%s' % (self.tile_path, mode, self.small_tile_h, type))
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for f in ox.sorted_strings(tiles)[self.small_tile_i+2:]:
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os.unlink(f)
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def _video_callback(self, frame_image, timestamp):
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self.log and self.profiler.set_task('_video_callback()')
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'''
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if timestamp != None and self.frame_i != int(round(timestamp * FPS)):
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print('WARNING: i is', self.frame_i, 'timestamp is', timestamp, '(', int(round(timestamp * FPS)), ')')
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'''
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self.is_last_frame = self.frame_i == self.frame_n - 1
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large_tile_x = self.frame_i % self.large_tile_w
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# open large tile
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if large_tile_x == 0:
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self.large_tile_i = int(self.frame_i / self.large_tile_w)
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if self.large_tile_i < self.large_tile_n - 1:
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w = self.large_tile_w
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else:
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w = self.large_tile_last_w
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for mode in filter(lambda x: x in ['antialias', 'slitscan', 'cuts'], self.modes):
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self.large_tile_image[mode] = Image.new('RGB', (w, self.large_tile_h))
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if self.render_multiline:
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self.large_tile_image['multiline'] = {}
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t0 = time()
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#print('create images')
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for line in range(self.render_multiline):
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self.large_tile_image['multiline'][line] = Image.new('RGB', (w, self.large_tile_h))
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#print('create images done', time()-t0)
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if self.render_data:
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self.large_tile_image['data'] = Image.new('RGB', (w * 8, 8))
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paste = (large_tile_x, 0)
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# render antialias tile
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self.log and self.profiler.set_task('i.resize((1, h), Image.ANTIALIAS) # antialias timelines')
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if self.render_antialias or self.render_cuts:
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resize = (1, self.large_tile_h)
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antialias_image = frame_image.resize(resize, Image.ANTIALIAS)
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if self.render_antialias:
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self.large_tile_image['antialias'].paste(antialias_image, paste)
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# render slitscan tile
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self.log and self.profiler.set_task('i.crop((c, 0, c + 1, h)) # slitscan timelines')
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if self.render_slitscan:
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crop = (self.frame_center, 0, self.frame_center + 1, self.large_tile_h)
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self.large_tile_image['slitscan'].paste(frame_image.crop(crop), paste)
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if self.render_multiline:
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def chrop_line(line):
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crop = (line, 0, line + 1, self.large_tile_h)
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self.large_tile_image['multiline'][line].paste(frame_image.crop(crop), paste)
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self._pool.map(chrop_line, list(range(self.render_multiline)))
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self.log and self.profiler.unset_task()
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# render data tile
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if self.render_data or self.detect_cuts:
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self.log and self.profiler.set_task('i.resize((8, 8), Image.ANTIALIAS) # cut detection')
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data_image = frame_image.resize((8, 8), Image.ANTIALIAS)
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if self.render_data:
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self.large_tile_image['data'].paste(data_image, (large_tile_x * 8, 0))
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self.log and self.profiler.unset_task()
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# detect cuts
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if self.detect_cuts:
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self.log and self.profiler.set_task('# cut detection')
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frame_data = data_image.getdata()
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if self.frame_i == 0:
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is_cut = False
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self.previous_distance = 0
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else:
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if self.short_cut and self.frame_i - self.short_cut > 2:
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self.cuts.append(self.short_cut)
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self.short_cut = None
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distance = self._get_distance(self.previous_frame_data, frame_data)
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is_cut = distance > 0.08 or (distance > 0.04 and abs(distance - self.previous_distance) > 0.04)
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if is_cut:
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if self.frame_i - (0 if not self.cuts else self.short_cut or self.cuts[-1]) < 3:
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is_cut = False
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self.short_cut = self.frame_i
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else:
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self.cuts.append(self.frame_i)
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elif len(self.cut_frames) == self.max_cut_len:
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is_cut = True
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self.cuts.append(self.frame_i)
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self.no_cuts.append(self.frame_i)
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# render cuts tile
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if self.render_cuts:
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self.log and self.profiler.set_task('# cuts timeline')
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self.large_tile_image['cuts'].paste(antialias_image, paste)
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y = self.large_tile_h - 1 - int(distance * self.large_tile_h)
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rgb = (255, 0, 0) if is_cut else (0, 255, 0)
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try:
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self.large_tile_image['cuts'].putpixel((large_tile_x, y), rgb)
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except:
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print('ERROR x y rgb', large_tile_x, y, rgb)
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self.previous_distance = distance
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self.previous_frame_data = frame_data
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# render keyframes tile
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if self.render_keyframes:
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if is_cut:
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self._render_keyframes()
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self.cut_frames.append(frame_image)
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if self.is_last_frame:
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if not self.cuts or self.cuts[-1] != self.frame_n:
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self.cuts.append(self.frame_n)
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self._render_keyframes()
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# save large tile
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self.log and self.profiler.set_task('_video_callback()')
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if large_tile_x == self.large_tile_w - 1 or self.is_last_frame:
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for mode in filter(lambda x: x in ['antialias', 'slitscan', 'cuts', 'data', 'multiline'], self.modes):
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self._save_tile(mode, self.large_tile_i)
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if self.render_antialias:
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self._save_full_tile_image('antialias')
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self.frame_i += 1
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self.log and self.profiler.set_task('ffmpeg')
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def _render_keyframes(self):
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self.log and self.profiler.set_task('_render_keyframes() # keyframes timelines')
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cut_width = self.cuts[-1] - self.cuts[-2]
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modes = ['keyframes', 'keyframeswide'] if self.render_small_tiles else ['keyframes']
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for mode in modes:
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wide = 1 if mode == 'keyframes' else self.wide
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frame_ratio = self.frame_ratio * wide
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cut_images = int(math.ceil(cut_width / (frame_ratio * self.large_tile_h)))
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if cut_images == 0:
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print('ERROR division by zero', cut_width, cut_images)
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index = -1
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image_widths = self._divide(cut_width, cut_images)
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image_i = self.cuts[-2]
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large_keyframes_tile_i = self.large_keyframes_tile_i
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for image_w in image_widths:
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frame_image = self.cut_frames[image_i - self.cuts[-2]]
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#frame_image.save('deleteme.jpg')
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if mode == 'keyframeswide':
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resize = (self.wide_frame_w, self.large_tile_h)
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self.log and self.profiler.set_task('i,resize((w, h)) # keyframeswide timelines')
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frame_image = frame_image.resize(resize, Image.ANTIALIAS)
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self.log and self.profiler.unset_task()
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left = int((self.frame_w * wide - image_w) / 2)
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crop = (left, 0, left + image_w, self.large_tile_h)
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frame_image = frame_image.crop(crop)
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tile_indices = [int(image_i / self.large_tile_w)]
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tile_offsets = [image_i % self.large_tile_w]
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while tile_offsets[-1] + image_w > self.large_tile_w:
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tile_indices.append(tile_indices[-1] + 1)
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tile_offsets.append(tile_offsets[-1] - self.large_tile_w)
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for i, index in enumerate(tile_indices):
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offset = tile_offsets[i]
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if index > large_keyframes_tile_i:
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large_keyframes_tile_i = index
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if index > 0:
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self._save_tile(mode, index - 1)
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if index < self.large_tile_n - 1:
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w = self.large_tile_w
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else:
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w = self.large_tile_last_w
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self.large_tile_image[mode] = Image.new('RGB', (w, self.large_tile_h))
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self.large_tile_image[mode].paste(frame_image, (offset, 0))
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image_i += image_w
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if self.is_last_frame and index > -1:
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self._save_tile(mode, index)
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self.large_keyframes_tile_i = large_keyframes_tile_i
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self.cut_frames = []
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self.log and self.profiler.unset_task()
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def _render_audio(self, volume):
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self.log and self.profiler.set_task('_render_audio()')
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channel_h = int(self.large_tile_h / 2)
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for self.frame_i, sample_v in enumerate(volume):
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sample_v = list(map(math.sqrt, sample_v))
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large_tile_x = self.frame_i % self.large_tile_w
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if large_tile_x == 0:
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large_tile_i = int(self.frame_i / self.large_tile_w)
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if large_tile_i < self.large_tile_n - 1:
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w = self.large_tile_w
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else:
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w = self.large_tile_last_w
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self.large_tile_image['audio'] = Image.new('L', (w, self.large_tile_h))
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image_data = self.large_tile_image['audio'].load()
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for channel, value in enumerate(sample_v):
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value = value * channel_h
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for pixel in range(channel_h):
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if value <= pixel:
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break
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if value < pixel + 1:
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color = int(round((value - int(value)) * 255))
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else:
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color = 255
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y = channel_h - 1 - pixel if channel == 0 else channel_h + pixel
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image_data[large_tile_x, y] = (color)
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is_last_tile = self.frame_i == self.frame_n - 1
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if large_tile_x == self.large_tile_w - 1 or is_last_tile:
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self._save_tile('audio', large_tile_i)
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if not self.render_video:
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self._save_full_tile_image('audio')
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if not self.render_video:
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self.large_tile_i = large_tile_i
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def _divide(self, num, by):
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# divide(100, 3) -> [33, 33, 34]
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arr = []
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if by == 0:
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return arr
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div = int(num / by)
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mod = num % by
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for i in range(int(by)):
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arr.append(div + (i > by - 1 - mod))
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return arr
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def _get_distance(self, data0, data1):
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self.log and self.profiler.set_task('_get_distance() # cut detection')
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distance = 0
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for i in range(64):
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distance += math.sqrt(
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pow(data0[i][0] - data1[i][0], 2) +
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pow(data0[i][1] - data1[i][1], 2) +
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pow(data0[i][2] - data1[i][2], 2)
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)
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distance /= self.max_distance
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self.log and self.profiler.unset_task()
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return distance
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def _open_full_tile(self):
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if self.large_tile_n == 1:
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self.full_tile_widths = [self.full_tile_w]
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else:
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full_tile_w = self.full_tile_w
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full_tile_n = self.large_tile_n
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if self.large_tile_last_w < self.large_tile_w:
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factor = self.full_tile_w / self.frame_n
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last_w = int(round(self.large_tile_last_w * factor))
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full_tile_w -= last_w
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full_tile_n -= 1
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self.full_tile_widths = self._divide(full_tile_w, full_tile_n)
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if self.large_tile_last_w < self.large_tile_w:
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self.full_tile_widths.append(last_w)
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self.full_tile_offset = 0
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self.full_tile_image = Image.new('RGB', (self.full_tile_w, self.large_tile_h))
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def _save_full_tile_image(self, mode):
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if self.full_tile_widths[0] > 0 and self.large_tile_h > 0:
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resized = self.large_tile_image[mode].resize((
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self.full_tile_widths[0], self.large_tile_h
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), Image.ANTIALIAS)
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self.full_tile_image.paste(resized, (self.full_tile_offset, 0))
|
|
self.full_tile_offset += self.full_tile_widths[0]
|
|
self.full_tile_widths = self.full_tile_widths[1:]
|
|
|
|
def _save_full_tile(self, mode):
|
|
self.log and self.profiler.set_task('_save_full_tile()')
|
|
tile_file = '%stimeline%s%dp.jpg' % (
|
|
self.tile_path, mode, self.large_tile_h
|
|
)
|
|
self.full_tile_image.save(tile_file)
|
|
if self.log:
|
|
print(tile_file)
|
|
if self.render_small_tiles:
|
|
resize = (self.full_tile_w, self.small_tile_h)
|
|
self.full_tile_image = self.full_tile_image.resize(resize, Image.ANTIALIAS)
|
|
tile_file = '%stimeline%s%dp.jpg' % (
|
|
self.tile_path, mode, self.small_tile_h
|
|
)
|
|
self.full_tile_image.save(tile_file)
|
|
if self.log:
|
|
print(tile_file)
|
|
self.log and self.profiler.unset_task()
|
|
|
|
def _save_tile(self, mode, index):
|
|
self.log and self.profiler.set_task('_save_tile()')
|
|
# save large tile (or data tile)
|
|
if mode != 'keyframeswide' or self.render_wide_tiles:
|
|
height = 8 if mode == 'data' else self.large_tile_h
|
|
type = 'png' if mode == 'data' else 'jpg'
|
|
if mode == 'multiline':
|
|
def save_line(line):
|
|
tile_file = '%s%s/timeline%s%dp%d.%s' % (
|
|
self.tile_path, line, 'slitscan', self.output_h, index, type
|
|
)
|
|
ox.makedirs(os.path.dirname(tile_file))
|
|
width = self.large_tile_image[mode][line].size[0]
|
|
img = self.large_tile_image[mode][line]
|
|
if self.output_h != self.large_tile_image[mode][line].size[0]:
|
|
img = img.resize((width, self.output_h), Image.BICUBIC)
|
|
img.save(tile_file)
|
|
self._pool.map(save_line, list(range(self.render_multiline)))
|
|
else:
|
|
tile_file = '%stimeline%s%dp%d.%s' % (
|
|
self.tile_path, mode, height, index, type
|
|
)
|
|
self.large_tile_image[mode].save(tile_file)
|
|
if self.log:
|
|
print(tile_file)
|
|
if self.render_small_tiles and mode in ['antialias', 'slitscan', 'keyframeswide', 'audio']:
|
|
small_mode = 'keyframes' if mode == 'keyframeswide' else mode
|
|
small_tile_x = (index % 60) * 60
|
|
# open small tile
|
|
if small_tile_x == 0:
|
|
image_mode = 'L' if mode == 'audio' else 'RGB'
|
|
self.small_tile_i = small_tile_i = int(index / 60)
|
|
if small_tile_i < self.small_tile_n - 1:
|
|
w = self.small_tile_w
|
|
else:
|
|
w = self.small_tile_last_w
|
|
self.small_tile_image[small_mode] = Image.new(image_mode, (w, self.small_tile_h))
|
|
# render small tile
|
|
if small_tile_x <= self.small_tile_image[small_mode].size[0] - 60:
|
|
w = 60
|
|
else:
|
|
w = self.small_tile_last_w % 60 or 60
|
|
resize = (w, self.small_tile_h)
|
|
resized = self.large_tile_image[mode].resize(resize, Image.ANTIALIAS)
|
|
paste = (small_tile_x, 0)
|
|
self.small_tile_image[small_mode].paste(resized, paste)
|
|
# save small tile
|
|
if small_tile_x == self.small_tile_w - 60 or self.frame_i == self.frame_n - 1:
|
|
small_tile_i = int(index / 60)
|
|
tile_file = '%stimeline%s%dp%d.jpg' % (
|
|
self.tile_path, small_mode, self.small_tile_h, small_tile_i
|
|
)
|
|
self.small_tile_image[small_mode].save(tile_file)
|
|
if self.log:
|
|
print(tile_file)
|
|
self.log and self.profiler.unset_task()
|
|
|
|
def _done_callback(self, volume):
|
|
if self.render_audio:
|
|
volume = volume[:self.file_frame_n[self.video_i]]
|
|
if self.log and len(volume) < self.file_frame_n[self.video_i] - 1:
|
|
print('WARNING: Only got', len(volume), 'of', self.file_frame_n[self.video_i], 'audio samples.')
|
|
while len(volume) < self.file_frame_n[self.video_i]:
|
|
volume.append((0, 0))
|
|
self.volume += volume
|
|
if self.render_video:
|
|
if self.log and self.frame_i - self.frame_offset < self.file_frame_n[self.video_i]:
|
|
print('WARNING: Only got', self.frame_i + 1 - self.frame_offset, 'of', self.file_frame_n[self.video_i], 'video samples.')
|
|
while self.frame_i - self.frame_offset < self.file_frame_n[self.video_i]:
|
|
self._video_callback(
|
|
Image.new('RGB', (self.frame_w, self.large_tile_h)), None
|
|
)
|
|
if self.video_i < self.video_n - 1:
|
|
self.video_i += 1
|
|
self.frame_offset = self.frame_i
|
|
self.log and self.profiler.set_task('ffmpeg')
|
|
self.videos[self.video_i].decode(self.file_points[self.video_i])
|
|
else:
|
|
if self.render_video:
|
|
if self.render_antialias:
|
|
self._save_full_tile('antialias')
|
|
if self.cuts_path:
|
|
# remove cuts at first and last frame and all cuts at max_cut_len
|
|
self.cuts = filter(lambda x: x not in [0, self.frame_n] + self.no_cuts, self.cuts)
|
|
with open(self.cuts_path, 'w') as f:
|
|
# avoid float rounding artefacts
|
|
f.write('[' + ', '.join(map(lambda x: '%.2f' % (x / FPS), self.cuts)) + ']')
|
|
if self.render_audio:
|
|
self._render_audio(self.volume)
|
|
if not self.render_video:
|
|
self._save_full_tile('audio')
|
|
if self.log:
|
|
if self.render_video:
|
|
maximum = 0
|
|
for i in range(1, len(self.cuts)):
|
|
length = self.cuts[i] - self.cuts[i - 1]
|
|
if length > maximum:
|
|
maximum = length
|
|
print('Number of frames:', self.frame_n)
|
|
print('Number of cuts:', len(self.cuts) - 2)
|
|
print('Most frames per cut:', maximum)
|
|
for task in self.profiler.get_profile():
|
|
print('%10.6f sec/hr' % (task['time'] / self.frame_n * 90000), task['task'])
|
|
files = filter(lambda x: x.endswith('.jpg'), os.listdir(self.tile_path))
|
|
size = sum(map(lambda x: os.path.getsize(self.tile_path + x), files))
|
|
print('%10.6f MB/hr' % (size / self.frame_n * 90000 / 1000000), 'timeline tiles')
|
|
|
|
|
|
class Profiler():
|
|
|
|
def __init__(self):
|
|
self.task = ''
|
|
self.times = {}
|
|
|
|
def get_profile(self):
|
|
tasks = []
|
|
total = 0
|
|
for task in self.times:
|
|
tasks.append({'task': task, 'time': self.times[task]})
|
|
total += self.times[task]
|
|
tasks.append({'task': 'total', 'time': total})
|
|
return sorted(tasks, key=lambda x: -x['time'])
|
|
|
|
def set_task(self, task):
|
|
now = time()
|
|
if self.task:
|
|
if self.task not in self.times:
|
|
self.times[self.task] = 0
|
|
else:
|
|
self.times[self.task] += now - self.time
|
|
self.previous_task = self.task
|
|
self.task = task
|
|
self.time = now
|
|
|
|
def unset_task(self):
|
|
self.set_task(self.previous_task)
|