python实现视频压缩功能
引言
实现一个视频压缩的功能,
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:耗时20s (win10,CPU:intel i7 8G运存 )
由于压缩运算需要占用CPU资源,所以时间和性能其实很难兼顾,这个是我个人比较满意的一版 ,记录一下
话不多说,直接上代码
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 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()) # 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:inteli7 8G运存 耗时20s
启动方式:
在上述 .py文件所在目录下,shift+鼠标右键点击空白处,打开powershell窗口,运行以下命令:
python shipinyasuo-2.py D:\yasuoship test.avi test1.avi
我的文件名叫 shipinyasuo-2.py ,把这个文件名替换成自己的,
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 , 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:
https://blog.csdn.net/a849992683/article/details/90030326
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