Python3 + OpenCV 實現圖片轉視頻
# -*- coding=utf-8 -*-
import os
import cv2 // 導入 opencv
from tqdm import tqdm // 進度條工具
import subprocess
img_size = (3840, 2160) // 圖像分辨率, 須統一
img_det_dir = '../../mmsr_dest/' // 視頻文件輸出路徑
assert os.path.exists(img_det_dir), "出錯, 路徑{}不存在。。。 ".format(img_det_dir)
# img_size = (960, 540)
# img_det_dir = '../../SDR_540p_jpg/'
dest_vids = '../../mmsr_dest_vids/'
if not os.path.exists(dest_vids):
os.mkdir(dest_vids)
video_names = os.listdir(img_det_dir)
# first_file_name = file_name_list[0]
# temp_file_path = first_file_name[0:first_file_name.rfind("_")] + ".txt"
# merge_file_path = first_file_name[0:first_file_name_rfind("_")] + ".mp4"
#
# cmd = "ffmpeg -f concat -loglevel error -safe 0 -i " + \
# temp_file_path + " -g 10 -s 640*340 -q 20 -c -copy " + merge_file_path
# print(cmd)
# subprocess.call(cmd, shell=True)
fps = 30
fourcc = cv2.VideoWriter_fourcc('M', 'J', 'P', 'G')
for vid in tqdm(video_names):
video_dir = os.path.join(dest_vids, vid) + '.avi'
file_names = os.listdir(os.path.join(img_det_dir, vid))
file_names.sort()
if len(file_names) == 100 and not os.path.isfile(video_dir):
video_writer = cv2.VideoWriter(video_dir, fourcc, fps, img_size)
for file_name in file_names:
img_path = os.path.join(img_det_dir, vid, file_name)
img = cv2.imread(img_path)
# print("Loading img from: {}".format(img_path))
video_writer.write(img)
cmd = "ffmpeg - threads 4 -r 24000/1001 - i {}/%%d.jpg -vcodec libx265 -pix_fmt yuv422p -crf 10 {}{}.avi" \
.format(os.path.join(img_det_dir, vid), dest_vids, vid)
# cmd = "ffmpeg - i {}/%%d.jpg - c:v libx264 - preset veryslow - crf 18 -c:a copy D:\dest1.avi"
print(cmd)
subprocess.call(cmd, shell=True)
video_writer.release()
else:
print("{} already exsists, next....".format(video_dir))
continue
記錄下來,以備不時之需~~