Python3.6_x86通过FFpmeg获取视频或音频的时长和分辨率
前言
前段时间公司在做流媒体服务,与许多厂家合作拿了许多视频过来,现在要对这些视频文件进行整理,通过特殊的编码排列,获取他们的时长以及分辨率,这里我遇到一个大坑,请往下面看。
1 # -*- coding: utf-8 -*- 2 import os 3 import sys 4 import shutil 5 import subprocess 6 import json 7 def getLength(filename): 8 command = ["ffprobe.exe","-loglevel","quiet","-print_format","json","-show_format","-show_streams","-i",filename] 9 result = subprocess.Popen(command,shell=True,stdout = subprocess.PIPE, stderr = subprocess.STDOUT) 10 out = result.stdout.read() 11 #print(str(out)) 12 temp = str(out.decode('utf-8')) 13 try: 14 data = json.loads(temp)['streams'][1]['width'] 15 except: 16 data = json.loads(temp)['streams'][0]['width'] 17 return data 18 19 def getLenTime(filename): 20 command = ["ffprobe.exe","-loglevel","quiet","-print_format","json","-show_format","-show_streams","-i",filename] 21 result = subprocess.Popen(command,shell=True,stdout = subprocess.PIPE, stderr = subprocess.STDOUT) 22 out = result.stdout.read() 23 #print(str(out)) 24 temp = str(out.decode('utf-8')) 25 data = json.loads(temp)["format"]['duration'] 26 return data
只需要传入文件的完整路径就可以获取到分辨率以及播放时长。
本次使用ffpmeg发现,使用的python3.6 ,32位和64位通过 subprocess.Popen 获取到的值是不一样的,导致后面的方法也稍微不一样,如果你是32位的,使用我上面代码无法获取
out = result.stdout
data = json.loads(out)["format"]['duration']
作者感言：重要是事情说三遍 路径全英文，路径全英文,路径全英文!!!!!
