python压缩视频文件_python实现视频压缩功能

引言

实现一个视频压缩的功能&＃xff0c;

性能优良 压缩视频 从61M 到 11M或者80M到15M

视频看起来没有太大损伤

缺点&＃xff1a;耗时20s (win10&＃xff0c;CPU&＃xff1a;intel i7 8G运存 )

由于压缩运算需要占用CPU资源&＃xff0c;所以时间和性能其实很难兼顾&＃xff0c;这个是我个人比较满意的一版 &＃xff0c;记录一下

话不多说&＃xff0c;直接上代码

视频压缩&＃xff1a;

# 视频压缩第二版

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&＃61;""):

self.filePath &＃61; filePath #文件地址

self.inputName &＃61; inputName #输入的文件名字

self.outName &＃61; outName #输出的文件名字

self.system_ &＃61; platform.platform().split("-",1)[0]

if self.system_ &＃61;&＃61; "Windows":

self.filePath &＃61; (self.filePath &＃43; "\\") if self.filePath.rsplit("\\",1)[-1] else self.filePath

elif self.system_ &＃61;&＃61; "Linux":

self.filePath &＃61; (self.filePath &＃43; "/") if self.filePath.rsplit("/",1)[-1] else self.filePath

self.fileInputPath &＃61; self.filePath &＃43; inputName

self.fileOutPath &＃61; self.filePath &＃43; outName

&＃64;property

def is_video(self):

videoSuffixSet &＃61; {"WMV","ASF","ASX","RM","RMVB","MP4","3GP","MOV","M4V","AVI","DAT","MKV","FIV","VOB"}

suffix &＃61; self.fileInputPath.rsplit(".",1)[-1].upper()

if suffix in videoSuffixSet:

return True

else:

return False

def SaveVideo(self):

fpsize &＃61; os.path.getsize(self.fileInputPath) / 1024

if fpsize >&＃61; 150.0: #大于150KB的视频需要压缩

if self.outName:

compress &＃61; "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 &＃61; os.system(compress)

else:

compress &＃61; "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 &＃61; os.system(compress)

if isRun !&＃61; 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&＃xff0c;注释同步保存的代码

thr &＃61; threading.Thread(target&＃61;self.SaveVideo)

thr.start()

#下面为同步代码

# fpsize &＃61; os.path.getsize(self.fileInputPath) / 1024

# if fpsize >&＃61; 150.0: # 大于150KB的视频需要压缩

# compress &＃61; "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 &＃61; os.system(compress)

# if isRun !&＃61; 0:

# return (isRun, "没有安装ffmpeg")

# return True

# else:

# return True

if __name__ &＃61;&＃61; "__main__":

b &＃61; sys.argv[1:]#测试压缩

savevideo &＃61; Compress_Pic_or_Video(b[0],b[1],b[2])

print(savevideo.Compress_Video())

# 这一版性能优良 压缩 从61M 到 11M 视频看起来没有太大损伤 缺点&＃xff1a;inteli7 8G运存 耗时20s

启动方式&＃xff1a;

在上述 .py文件所在目录下&＃xff0c;shift&＃43;鼠标右键点击空白处&＃xff0c;打开powershell窗口&＃xff0c;运行以下命令&＃xff1a;

python shipinyasuo-2.py D:\yasuoship test.avi test1.avi

我的文件名叫 shipinyasuo-2.py &＃xff0c;把这个文件名替换成自己的&＃xff0c;

D:\yasuoship 替换成要压缩的视频的文件夹的绝对路径

test.avi  压缩的视频的文件名

test1.avi  压缩后的文件名 &＃xff0c; 和要压缩的文件在同一目录下

后续我还会再走一个牺牲图像大小啊 质量啊换取速度和大小的版本

最后贴出参考&＃xff1a;

https://blog.csdn.net/a849992683/article/details/90030326