#encoding = utf8
import os

import cv2
from tqdm import tqdm


def read_files_path(path):
    file_paths = []
    files = os.listdir(path)
    for file in files:
        if not os.path.isdir(file):
            file_paths.append(path + file)
    return file_paths


def read_images(img_list):
    frames = []
    print('reading images...')
    for img_path in tqdm(img_list):
        print(f'read image path:{img_path}')
        frame = cv2.imread(img_path)
        frames.append(frame)
    return frames


def mirror_index(size, index):
    # size = len(self.coord_list_cycle)
    turn = index // size
    res = index % size
    if turn % 2 == 0:
        return res
    else:
        return size - res - 1