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https://github.com/Wan-Video/Wan2.1.git
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427 lines
17 KiB
Python
427 lines
17 KiB
Python
# Copyright 2024-2025 The Alibaba Wan Team Authors. All rights reserved.
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import argparse
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import os
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import os.path as osp
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import torchvision.transforms.functional as TF
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import torch.nn.functional as F
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import cv2
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import tempfile
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import imageio
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import torch
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import decord
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from PIL import Image
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import numpy as np
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from rembg import remove, new_session
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import random
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import ffmpeg
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import os
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import tempfile
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import subprocess
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import json
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from functools import lru_cache
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os.environ["U2NET_HOME"] = os.path.join(os.getcwd(), "ckpts", "rembg")
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from PIL import Image
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video_info_cache = []
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def seed_everything(seed: int):
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random.seed(seed)
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np.random.seed(seed)
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torch.manual_seed(seed)
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if torch.cuda.is_available():
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torch.cuda.manual_seed(seed)
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if torch.backends.mps.is_available():
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torch.mps.manual_seed(seed)
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def resample(video_fps, video_frames_count, max_target_frames_count, target_fps, start_target_frame ):
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import math
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video_frame_duration = 1 /video_fps
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target_frame_duration = 1 / target_fps
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target_time = start_target_frame * target_frame_duration
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frame_no = math.ceil(target_time / video_frame_duration)
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cur_time = frame_no * video_frame_duration
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frame_ids =[]
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while True:
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if max_target_frames_count != 0 and len(frame_ids) >= max_target_frames_count :
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break
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diff = round( (target_time -cur_time) / video_frame_duration , 5)
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add_frames_count = math.ceil( diff)
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frame_no += add_frames_count
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if frame_no >= video_frames_count:
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break
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frame_ids.append(frame_no)
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cur_time += add_frames_count * video_frame_duration
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target_time += target_frame_duration
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frame_ids = frame_ids[:max_target_frames_count]
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return frame_ids
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import os
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from datetime import datetime
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def get_file_creation_date(file_path):
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# On Windows
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if os.name == 'nt':
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return datetime.fromtimestamp(os.path.getctime(file_path))
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# On Unix/Linux/Mac (gets last status change, not creation)
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else:
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stat = os.stat(file_path)
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return datetime.fromtimestamp(stat.st_birthtime if hasattr(stat, 'st_birthtime') else stat.st_mtime)
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def truncate_for_filesystem(s, max_bytes=255):
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if len(s.encode('utf-8')) <= max_bytes: return s
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l, r = 0, len(s)
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while l < r:
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m = (l + r + 1) // 2
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if len(s[:m].encode('utf-8')) <= max_bytes: l = m
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else: r = m - 1
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return s[:l]
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@lru_cache(maxsize=100)
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def get_video_info(video_path):
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global video_info_cache
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import cv2
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cap = cv2.VideoCapture(video_path)
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# Get FPS
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fps = round(cap.get(cv2.CAP_PROP_FPS))
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# Get resolution
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width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
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height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
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frame_count = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
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cap.release()
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return fps, width, height, frame_count
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def get_video_frame(file_name: str, frame_no: int, return_last_if_missing: bool = False, return_PIL = True) -> torch.Tensor:
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"""Extract nth frame from video as PyTorch tensor normalized to [-1, 1]."""
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cap = cv2.VideoCapture(file_name)
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if not cap.isOpened():
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raise ValueError(f"Cannot open video: {file_name}")
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total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
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# Handle out of bounds
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if frame_no >= total_frames or frame_no < 0:
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if return_last_if_missing:
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frame_no = total_frames - 1
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else:
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cap.release()
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raise IndexError(f"Frame {frame_no} out of bounds (0-{total_frames-1})")
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# Get frame
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cap.set(cv2.CAP_PROP_POS_FRAMES, frame_no)
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ret, frame = cap.read()
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cap.release()
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if not ret:
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raise ValueError(f"Failed to read frame {frame_no}")
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# Convert BGR->RGB, reshape to (C,H,W), normalize to [-1,1]
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frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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if return_PIL:
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return Image.fromarray(frame)
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else:
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return (torch.from_numpy(frame).permute(2, 0, 1).float() / 127.5) - 1.0
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# def get_video_frame(file_name, frame_no):
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# decord.bridge.set_bridge('torch')
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# reader = decord.VideoReader(file_name)
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# frame = reader.get_batch([frame_no]).squeeze(0)
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# img = Image.fromarray(frame.numpy().astype(np.uint8))
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# return img
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def convert_image_to_video(image):
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if image is None:
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return None
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# Convert PIL/numpy image to OpenCV format if needed
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if isinstance(image, np.ndarray):
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# Gradio images are typically RGB, OpenCV expects BGR
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img_bgr = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)
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else:
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# Handle PIL Image
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img_array = np.array(image)
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img_bgr = cv2.cvtColor(img_array, cv2.COLOR_RGB2BGR)
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height, width = img_bgr.shape[:2]
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# Create temporary video file (auto-cleaned by Gradio)
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with tempfile.NamedTemporaryFile(suffix='.mp4', delete=False) as temp_video:
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fourcc = cv2.VideoWriter_fourcc(*'mp4v')
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out = cv2.VideoWriter(temp_video.name, fourcc, 30.0, (width, height))
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out.write(img_bgr)
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out.release()
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return temp_video.name
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def resize_lanczos(img, h, w):
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img = (img + 1).float().mul_(127.5)
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img = Image.fromarray(np.clip(img.movedim(0, -1).cpu().numpy(), 0, 255).astype(np.uint8))
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img = img.resize((w,h), resample=Image.Resampling.LANCZOS)
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img = torch.from_numpy(np.array(img).astype(np.float32)).movedim(-1, 0)
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img = img.div(127.5).sub_(1)
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return img
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def remove_background(img, session=None):
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if session ==None:
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session = new_session()
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img = Image.fromarray(np.clip(255. * img.movedim(0, -1).cpu().numpy(), 0, 255).astype(np.uint8))
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img = remove(img, session=session, alpha_matting = True, bgcolor=[255, 255, 255, 0]).convert('RGB')
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return torch.from_numpy(np.array(img).astype(np.float32) / 255.0).movedim(-1, 0)
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def convert_image_to_tensor(image):
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return torch.from_numpy(np.array(image).astype(np.float32)).div_(127.5).sub_(1.).movedim(-1, 0)
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def convert_tensor_to_image(t, frame_no = -1):
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t = t[:, frame_no] if frame_no >= 0 else t
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return Image.fromarray(t.clone().add_(1.).mul_(127.5).permute(1,2,0).to(torch.uint8).cpu().numpy())
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def save_image(tensor_image, name, frame_no = -1):
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convert_tensor_to_image(tensor_image, frame_no).save(name)
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def get_outpainting_full_area_dimensions(frame_height,frame_width, outpainting_dims):
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outpainting_top, outpainting_bottom, outpainting_left, outpainting_right= outpainting_dims
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frame_height = int(frame_height * (100 + outpainting_top + outpainting_bottom) / 100)
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frame_width = int(frame_width * (100 + outpainting_left + outpainting_right) / 100)
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return frame_height, frame_width
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def get_outpainting_frame_location(final_height, final_width, outpainting_dims, block_size = 8):
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outpainting_top, outpainting_bottom, outpainting_left, outpainting_right= outpainting_dims
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raw_height = int(final_height / ((100 + outpainting_top + outpainting_bottom) / 100))
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height = int(raw_height / block_size) * block_size
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extra_height = raw_height - height
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raw_width = int(final_width / ((100 + outpainting_left + outpainting_right) / 100))
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width = int(raw_width / block_size) * block_size
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extra_width = raw_width - width
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margin_top = int(outpainting_top/(100 + outpainting_top + outpainting_bottom) * final_height)
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if extra_height != 0 and (outpainting_top + outpainting_bottom) != 0:
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margin_top += int(outpainting_top / (outpainting_top + outpainting_bottom) * extra_height)
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if (margin_top + height) > final_height or outpainting_bottom == 0: margin_top = final_height - height
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margin_left = int(outpainting_left/(100 + outpainting_left + outpainting_right) * final_width)
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if extra_width != 0 and (outpainting_left + outpainting_right) != 0:
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margin_left += int(outpainting_left / (outpainting_left + outpainting_right) * extra_height)
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if (margin_left + width) > final_width or outpainting_right == 0: margin_left = final_width - width
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return height, width, margin_top, margin_left
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def rescale_and_crop(img, w, h):
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ow, oh = img.size
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target_ratio = w / h
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orig_ratio = ow / oh
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if orig_ratio > target_ratio:
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# Crop width first
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nw = int(oh * target_ratio)
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img = img.crop(((ow - nw) // 2, 0, (ow + nw) // 2, oh))
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else:
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# Crop height first
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nh = int(ow / target_ratio)
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img = img.crop((0, (oh - nh) // 2, ow, (oh + nh) // 2))
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return img.resize((w, h), Image.LANCZOS)
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def calculate_new_dimensions(canvas_height, canvas_width, image_height, image_width, fit_into_canvas, block_size = 16):
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if fit_into_canvas == None or fit_into_canvas == 2:
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# return image_height, image_width
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return canvas_height, canvas_width
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if fit_into_canvas == 1:
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scale1 = min(canvas_height / image_height, canvas_width / image_width)
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scale2 = min(canvas_width / image_height, canvas_height / image_width)
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scale = max(scale1, scale2)
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else: #0 or #2 (crop)
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scale = (canvas_height * canvas_width / (image_height * image_width))**(1/2)
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new_height = round( image_height * scale / block_size) * block_size
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new_width = round( image_width * scale / block_size) * block_size
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return new_height, new_width
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def calculate_dimensions_and_resize_image(image, canvas_height, canvas_width, fit_into_canvas, fit_crop, block_size = 16):
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if fit_crop:
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image = rescale_and_crop(image, canvas_width, canvas_height)
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new_width, new_height = image.size
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else:
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image_width, image_height = image.size
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new_height, new_width = calculate_new_dimensions(canvas_height, canvas_width, image_height, image_width, fit_into_canvas, block_size = block_size )
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image = image.resize((new_width, new_height), resample=Image.Resampling.LANCZOS)
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return image, new_height, new_width
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def resize_and_remove_background(img_list, budget_width, budget_height, rm_background, any_background_ref, fit_into_canvas = 0, block_size= 16, outpainting_dims = None ):
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if rm_background:
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session = new_session()
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output_list =[]
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for i, img in enumerate(img_list):
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width, height = img.size
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if fit_into_canvas == None or any_background_ref == 1 and i==0 or any_background_ref == 2:
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if outpainting_dims is not None:
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resized_image =img
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elif img.size != (budget_width, budget_height):
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resized_image= img.resize((budget_width, budget_height), resample=Image.Resampling.LANCZOS)
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else:
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resized_image =img
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elif fit_into_canvas == 1:
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white_canvas = np.ones((budget_height, budget_width, 3), dtype=np.uint8) * 255
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scale = min(budget_height / height, budget_width / width)
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new_height = int(height * scale)
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new_width = int(width * scale)
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resized_image= img.resize((new_width,new_height), resample=Image.Resampling.LANCZOS)
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top = (budget_height - new_height) // 2
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left = (budget_width - new_width) // 2
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white_canvas[top:top + new_height, left:left + new_width] = np.array(resized_image)
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resized_image = Image.fromarray(white_canvas)
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else:
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scale = (budget_height * budget_width / (height * width))**(1/2)
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new_height = int( round(height * scale / block_size) * block_size)
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new_width = int( round(width * scale / block_size) * block_size)
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resized_image= img.resize((new_width,new_height), resample=Image.Resampling.LANCZOS)
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if rm_background and not (any_background_ref and i==0 or any_background_ref == 2) :
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# resized_image = remove(resized_image, session=session, alpha_matting_erode_size = 1,alpha_matting_background_threshold = 70, alpha_foreground_background_threshold = 100, alpha_matting = True, bgcolor=[255, 255, 255, 0]).convert('RGB')
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resized_image = remove(resized_image, session=session, alpha_matting_erode_size = 1, alpha_matting = True, bgcolor=[255, 255, 255, 0]).convert('RGB')
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output_list.append(resized_image) #alpha_matting_background_threshold = 30, alpha_foreground_background_threshold = 200,
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return output_list
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def str2bool(v):
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"""
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Convert a string to a boolean.
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Supported true values: 'yes', 'true', 't', 'y', '1'
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Supported false values: 'no', 'false', 'f', 'n', '0'
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Args:
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v (str): String to convert.
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Returns:
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bool: Converted boolean value.
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Raises:
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argparse.ArgumentTypeError: If the value cannot be converted to boolean.
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"""
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if isinstance(v, bool):
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return v
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v_lower = v.lower()
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if v_lower in ('yes', 'true', 't', 'y', '1'):
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return True
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elif v_lower in ('no', 'false', 'f', 'n', '0'):
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return False
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else:
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raise argparse.ArgumentTypeError('Boolean value expected (True/False)')
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import sys, time
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# Global variables to track download progress
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_start_time = None
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_last_time = None
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_last_downloaded = 0
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_speed_history = []
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_update_interval = 0.5 # Update speed every 0.5 seconds
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def progress_hook(block_num, block_size, total_size, filename=None):
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"""
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Simple progress bar hook for urlretrieve
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Args:
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block_num: Number of blocks downloaded so far
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block_size: Size of each block in bytes
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total_size: Total size of the file in bytes
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filename: Name of the file being downloaded (optional)
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"""
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global _start_time, _last_time, _last_downloaded, _speed_history, _update_interval
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current_time = time.time()
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downloaded = block_num * block_size
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# Initialize timing on first call
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if _start_time is None or block_num == 0:
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_start_time = current_time
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_last_time = current_time
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_last_downloaded = 0
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_speed_history = []
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# Calculate download speed only at specified intervals
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speed = 0
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if current_time - _last_time >= _update_interval:
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if _last_time > 0:
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current_speed = (downloaded - _last_downloaded) / (current_time - _last_time)
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_speed_history.append(current_speed)
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# Keep only last 5 speed measurements for smoothing
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if len(_speed_history) > 5:
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_speed_history.pop(0)
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# Average the recent speeds for smoother display
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speed = sum(_speed_history) / len(_speed_history)
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_last_time = current_time
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_last_downloaded = downloaded
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elif _speed_history:
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# Use the last calculated average speed
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speed = sum(_speed_history) / len(_speed_history)
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# Format file sizes and speed
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def format_bytes(bytes_val):
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for unit in ['B', 'KB', 'MB', 'GB']:
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if bytes_val < 1024:
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return f"{bytes_val:.1f}{unit}"
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bytes_val /= 1024
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return f"{bytes_val:.1f}TB"
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file_display = filename if filename else "Unknown file"
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if total_size <= 0:
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# If total size is unknown, show downloaded bytes
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speed_str = f" @ {format_bytes(speed)}/s" if speed > 0 else ""
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line = f"\r{file_display}: {format_bytes(downloaded)}{speed_str}"
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# Clear any trailing characters by padding with spaces
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sys.stdout.write(line.ljust(80))
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sys.stdout.flush()
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return
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downloaded = block_num * block_size
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percent = min(100, (downloaded / total_size) * 100)
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# Create progress bar (40 characters wide to leave room for other info)
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bar_length = 40
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filled = int(bar_length * percent / 100)
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bar = '█' * filled + '░' * (bar_length - filled)
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# Format file sizes and speed
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def format_bytes(bytes_val):
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for unit in ['B', 'KB', 'MB', 'GB']:
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if bytes_val < 1024:
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return f"{bytes_val:.1f}{unit}"
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bytes_val /= 1024
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return f"{bytes_val:.1f}TB"
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speed_str = f" @ {format_bytes(speed)}/s" if speed > 0 else ""
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# Display progress with filename first
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line = f"\r{file_display}: [{bar}] {percent:.1f}% ({format_bytes(downloaded)}/{format_bytes(total_size)}){speed_str}"
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# Clear any trailing characters by padding with spaces
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sys.stdout.write(line.ljust(100))
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sys.stdout.flush()
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# Print newline when complete
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if percent >= 100:
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print()
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# Wrapper function to include filename in progress hook
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def create_progress_hook(filename):
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"""Creates a progress hook with the filename included"""
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global _start_time, _last_time, _last_downloaded, _speed_history
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# Reset timing variables for new download
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_start_time = None
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_last_time = None
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_last_downloaded = 0
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_speed_history = []
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def hook(block_num, block_size, total_size):
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return progress_hook(block_num, block_size, total_size, filename)
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return hook
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