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Python视频压缩

应视频石大的要求，写了一段python代码，来对视频进行压缩，顺便写了一下图片压缩，但发现对.png格式的图片压缩效果不太好，其他的格式都没什么大问题。

先已经支持的格式：

视频：.wmv,.asf,.asx,.rm,.rmvb,.mp4,.3gp,.mov,.m4v,.avi,.dat,.mkv,.fiv,.vob。
图片：.bmp,.gif,.jpeg,.jpg,.TIFF,.svg,.pcx,.wmf,.emf,.lic,.eps,.tga。

所需要的环境

python3.7 ->python 环境配置 Windows&Mac

ffmpeg -> ffmpeg安装 Windows&Mac

使用方法

新建一个moriarty.py文件，将文章末尾的代码复制到文件中。
在python文件的文件夹中进入终端(或cmd)输入指令

python moriarty.py -address -input. -output.

其中-address 是所需要压缩的视频或文件的所在文件夹的绝对地址

-input.是所需要压缩的视频或图片的名称及格式名。一定要加格式名

-output. 是压缩后的视频或文件的名称和格式名（名称可以自己取）。

压缩后的文件会出现在同一文件夹中。

代码

#视频压缩

import sys

import os

import zlib

import threading

import platform

from PIL import Image

class Compress_Pic_or_Video(object):

    def __init__(self,filePath,inputName,outName=""):

        self.filePath = filePath

        self.inputName = inputName

        self.outName = outName

        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:

            if self.outName:

                compress = "ffmpeg -i {} -vcodec libx265 -crf 20 {}".format(self.fileInputPath,self.fileOutPath)

                isRun = os.system(compress)

            else:

                compress = "ffmpeg -i {} -vcodec libx265 -crf 20 {}".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):

        thr = threading.Thread(target=self.SaveVideo)

        thr.start()

if __name__ == "__main__":

    tag = sys.argv[1:]

    savevid = Compress_Pic_or_Video(tag[0],tag[1],tag[2])

    print(savevid.Compress_Video())

#压缩图片

import sys

import os

import zlib

import threading

import platform

from PIL import Image

class Compress_Pic_or_Video(object):

    def __init__(self,filePath,inputName,outName=""):

        self.filePath = filePath

        self.inputName = inputName

        self.outName = outName

        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_picture(self):

        picSuffixSet = {"BMP","GIF","JPEG","TIFF","PNG","SVG","PCX","WMF","EMF","LIC","EPS","TGA","JPG"}

        suffix = self.fileInputPath.rsplit(".",1)[-1].upper()

        if suffix in picSuffixSet:

            return True

        else:

            return False

    def SavePic(self):

        fpsize = os.path.getsize(self.fileInputPath) / 1024

        if fpsize >= 50.0:

            im = Image.open(self.fileInputPath)

            imBytes = im.tobytes()

            imBytes = zlib.compress(imBytes, 5)

            im2 = Image.frombytes('RGB', im.size, zlib.decompress(imBytes))

            if self.outName:

                im2.save(self.fileOutPath)

                return (self.fileOutPath,os.path.getsize(self.fileOutPath))

            else:

                im2.save(self.fileInputPath)

                return (self.fileInputPath,os.path.getsize(self.fileInputPath))

        else:

            return True

    def Compress_Picture(self):

        thr = threading.Thread(target=self.SavePic)

        thr.start()

if __name__ == "__main__":

    tag = sys.argv[1:]

    savepic = Compress_Pic_or_Video(tag[0],tag[1],tag[2])

    print(savepic.Compress_Picture())

巴特西

Python视频压缩

Python视频压缩

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