crawler_music_album/main/demo.py

# -*- coding: utf-8 -*-
# @Author: wangkun
# @Time: 2022/7/12
import os
import shutil
import ffmpeg


class Demo:
    # 获取已下载视频宽高、时长等信息
    @classmethod
    def get_video_info_from_local(cls, video_path):
        probe = ffmpeg.probe(video_path)
        # print('video_path: {}'.format(video_path))
        # format1 = probe['format']
        # bit_rate = int(format1['bit_rate']) / 1000
        # duration = format['duration']
        # size = int(format1['size']) / 1024 / 1024
        video_stream = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None)
        if video_stream is None:
            print('No video stream found!')
            return
        width = int(video_stream['width'])
        height = int(video_stream['height'])
        # num_frames = int(video_stream['nb_frames'])
        # fps = int(video_stream['r_frame_rate'].split('/')[0]) / int(video_stream['r_frame_rate'].split('/')[1])
        duration = float(video_stream['duration'])
        # print('width: {}'.format(width))
        # print('height: {}'.format(height))
        # print('num_frames: {}'.format(num_frames))
        # print('bit_rate: {}k'.format(bit_rate))
        # print('fps: {}'.format(fps))
        # print('size: {}MB'.format(size))
        # print('duration: {}'.format(duration))
        return width, height, duration

    # 判断视频时长是否大于 60s
    @classmethod
    def check_duration(cls):
        # 获取视频时长
        video_info = cls.get_video_info_from_local("../videos/11111/video.mp4")
        video_duration = video_info[2]
        if int(video_duration) < 60:
            shutil.rmtree("../videos/11111/")
        else:
            print(f"video_duration:{video_duration}")

    # 判断 title 长度
    @classmethod
    def check_title_len(cls):
        title = "🌸这首《老公赚钱给老婆花》🌸被唱的太肉麻了🌸好听好看🌸这首《老公赚钱给老婆花》🌸被唱的太肉麻了🌸好听好看"[:30]
        # print(len(title))
        # if len(title) > 30:
        #     title = title[:30]
        print(title)
        print(len(title))

    # 删除某个文件夹下所有文件
    @classmethod
    def del_files(cls):
        filepath = "./videos/"
        del_list = os.listdir(filepath)
        print(f"del_list:{del_list}\n")
        for f in del_list:
            file_path = os.path.join(filepath, f)
            print(f"file_path:{file_path}")
            if os.path.isdir(file_path):
                shutil.rmtree(file_path)
        print(f"videos文件夹:{os.listdir(filepath)}\n")


if __name__ == "__main__":
    demo = Demo()
    # demo.check_duration()
    # demo.check_title_len()
    demo.del_files()