python MP4文件压缩

1 新建python文件 convert.py，代码如下：

import sys
import os
import zlib
import threading
import platform
from PIL import Image


# python test.py D:\Users\weepal\Desktop view.mp4  view1.mp4

class Compress_Pic_or_Video(object):
    def __init__(self, filePath, inputName, outName=""):
        self.filePath = filePath  # 文件地址
        self.inputName = inputName  # 输入的文件名字
        self.outName = outName  # 输出的文件名字
        self.system_ = platform.platform().split("-", 1)[0]
        if self.system_ == "Windows":
            self.filePath = (self.filePath + "\\") if self.filePath.rsplit("\\", 1)[-1] else self.filePath
        elif self.system_ == "Linux":
            self.filePath = (self.filePath + "/") if self.filePath.rsplit("/", 1)[-1] else self.filePath
        self.fileInputPath = self.filePath + inputName
        self.fileOutPath = self.filePath + outName

    @property
    def is_video(self):
        videoSuffixSet = {"WMV", "ASF", "ASX", "RM", "RMVB", "MP4", "3GP", "MOV", "M4V", "AVI", "DAT", "MKV", "FIV",
                          "VOB"}
        suffix = self.fileInputPath.rsplit(".", 1)[-1].upper()
        if suffix in videoSuffixSet:
            return True
        else:
            return False

    def SaveVideo(self):
        fpsize = os.path.getsize(self.fileInputPath) / 1024
        if fpsize >= 150.0:  # 大于150KB的视频需要压缩
            if self.outName:
                compress = "ffmpeg -i {} -r 10 -pix_fmt yuv420p -vcodec libx264 -preset veryslow -profile:v baseline  -crf 23 -acodec aac -b:a 32k -strict -5 {}".format(
                    self.fileInputPath, self.fileOutPath)
                isRun = os.system(compress)
            else:
                compress = "ffmpeg -i {} -r 10 -pix_fmt yuv420p -vcodec libx264 -preset veryslow -profile:v baseline  -crf 23 -acodec aac -b:a 32k -strict -5 {}".format(
                    self.fileInputPath, self.fileInputPath)
                isRun = os.system(compress)
            if isRun != 0:
                return (isRun, "没有安装ffmpeg")
            return True
        else:
            return True

    def Compress_Video(self):
        # 异步保存打开下面的代码，注释同步保存的代码
        thr = threading.Thread(target=self.SaveVideo)
        thr.start()
        # 下面为同步代码
        # fpsize = os.path.getsize(self.fileInputPath) / 1024
        # if fpsize >= 150.0:  # 大于150KB的视频需要压缩
        #     compress = "ffmpeg -i {} -r 10 -pix_fmt yuv420p -vcodec libx264 -preset veryslow -profile:v baseline  -crf 23 -acodec aac -b:a 32k -strict -5 {}".format(
        #         self.fileInputPath, self.fileOutPath)
        #     isRun = os.system(compress)
        #     if isRun != 0:
        #         return (isRun, "没有安装ffmpeg")
        #     return True
        # else:
        #     return True


if __name__ == "__main__":
    b = sys.argv[1:]  # 测试压缩
    print(b)
    print(b[2])
    print(b[1])
    savevideo = Compress_Pic_or_Video(b[0], b[1], b[2])
    print(savevideo.Compress_Video())

　　

2 执行

python convert.py D:\Users\weepal\Desktop view.mp4 view1.mp4