python 视频压缩

# 视频压缩第二版
import sys
import os
import zlib
import threading
import platform
from PIL import Image

# python press.py ./ 12.mp4 23.mp4
# python 文件名  路径 要压缩的文件 压缩之后的文件名
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
    savevideo = Compress_Pic_or_Video(b[0],b[1],b[2])
    print(savevideo.Compress_Video())