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import os
import cv2
from tqdm import tqdm
class VideoCreator:
def __init__(self, imgs_dir, vid_name, pbar=True):
"""
:param str imgs_dir: The directory where the image files are stored.
:param str vid_name: The name of the video's filename.
:param bool pbar: Whether to display a progress bar.
"""
self.imgs_dir = imgs_dir
self.img_array = []
self.video_filename = vid_name
self.pbar = pbar
def preprocess_images(self):
filenames = sorted(os.listdir(self.imgs_dir))
print("Adding images...")
if self.pbar:
pb = tqdm(filenames)
else:
pb = filenames
height, width, _ = cv2.imread(self.imgs_dir + "/" + filenames[0]).shape
size = (width, height)
for filename in pb:
complete_filename = self.imgs_dir + "/" + filename
img = cv2.imread(complete_filename)
# convert to BGR
img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR)
self.img_array.append(img)
return size
def create_video(self, fps=20):
size = self.preprocess_images()
out = cv2.VideoWriter(
self.video_filename, cv2.VideoWriter_fourcc(*"MJPG"), fps, size
)
print("Recording video...")
if self.pbar:
pb = tqdm(range(len(self.img_array)))
else:
pb = range(len(self.img_array))
for i in pb:
out.write(self.img_array[i])
out.release()
print("Done.")
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