python實現視訊壓縮功能
阿新 • • 發佈:2020-12-19
引言
實現一個視訊壓縮的功能,
效能優良 壓縮視訊 從61M 到 11M或者80M到15M
視訊看起來沒有太大損傷
缺點:耗時20s (win10,CPU:intel i7 8G運存 )
由於壓縮運算需要佔用CPU資源,所以時間和效能其實很難兼顧,這個是我個人比較滿意的一版 ,記錄一下
話不多說,直接上程式碼
視訊壓縮:
# 視訊壓縮第二版 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 #檔案地址 self.inputName = inputName #輸入的檔名字 self.outName = outName #輸出的檔名字 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: #大於150KB的視訊需要壓縮 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,"沒有安裝ffmpeg") return True else: return True def Compress_Video(self): # 非同步儲存開啟下面的程式碼,註釋同步儲存的程式碼 thr = threading.Thread(target=self.SaveVideo) thr.start() #下面為同步程式碼 # fpsize = os.path.getsize(self.fileInputPath) / 1024 # if fpsize >= 150.0: # 大於150KB的視訊需要壓縮 # 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,"沒有安裝ffmpeg") # return True # else: # return True if __name__ == "__main__": b = sys.argv[1:] #測試壓縮 savevideo = Compress_Pic_or_Video(b[0],b[1],b[2]) print(savevideo.Compress_Video()) # 這一版效能優良 壓縮 從61M 到 11M 視訊看起來沒有太大損傷 缺點:inteli7 8G運存 耗時20s
啟動方式:
在上述 .py檔案所在目錄下,shift+滑鼠右鍵點選空白處,開啟powershell視窗,執行以下命令:
python shipinyasuo-2.py D:\yasuoship test.avi test1.avi
我的檔名叫 shipinyasuo-2.py ,把這個檔名替換成自己的,
D:\yasuoship 替換成要壓縮的視訊的資料夾的絕對路徑
test.avi 壓縮的視訊的檔名
test1.avi 壓縮後的檔名 , 和要壓縮的檔案在同一目錄下
後續我還會再走一個犧牲影象大小啊 質量啊換取速度和大小的版本
最後貼出參考:
https://blog.csdn.net/a849992683/article/details/90030326