如何在 Python 中获取视频的持续时间？
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How to get the duration of a video in Python?
提问by eos87
采纳答案by SingleNegationElimination
You can use the external command ffprobefor this. Specifically, run this bash commandfrom the FFmpeg Wiki:
您可以ffprobe为此使用外部命令。具体来说，从 FFmpeg Wiki运行这个 bash 命令：
import subprocess
def get_length(filename):
result = subprocess.run(["ffprobe", "-v", "error", "-show_entries",
"format=duration", "-of",
"default=noprint_wrappers=1:nokey=1", filename],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
return float(result.stdout)
回答by Andrew_1510
To make things a little bit easier, the following codes put the output to JSON.
为了让事情更容易一些，以下代码将输出放入JSON。
You can use it by using probe(filename), or get duration by using duration(filename):
您可以通过 using 来使用它probe(filename)，或者通过使用来获取持续时间duration(filename)：
json_info = probe(filename)
secondes_dot_ = duration(filename) # float number of seconds
It works on Ubuntu 14.04where of course ffprobeinstalled. The code is not optimized for speed or beautiful purposes but it works on my machine hope it helps.
它适用于Ubuntu 14.04当然ffprobe安装的位置。该代码并未针对速度或美观目的进行优化，但它可以在我的机器上运行，希望对您有所帮助。
#
# Command line use of 'ffprobe':
#
# ffprobe -loglevel quiet -print_format json \
# -show_format -show_streams \
# video-file-name.mp4
#
# man ffprobe # for more information about ffprobe
#
import subprocess32 as sp
import json
def probe(vid_file_path):
''' Give a json from ffprobe command line
@vid_file_path : The absolute (full) path of the video file, string.
'''
if type(vid_file_path) != str:
raise Exception('Gvie ffprobe a full file path of the video')
return
command = ["ffprobe",
"-loglevel", "quiet",
"-print_format", "json",
"-show_format",
"-show_streams",
vid_file_path
]
pipe = sp.Popen(command, stdout=sp.PIPE, stderr=sp.STDOUT)
out, err = pipe.communicate()
return json.loads(out)
def duration(vid_file_path):
''' Video's duration in seconds, return a float number
'''
_json = probe(vid_file_path)
if 'format' in _json:
if 'duration' in _json['format']:
return float(_json['format']['duration'])
if 'streams' in _json:
# commonly stream 0 is the video
for s in _json['streams']:
if 'duration' in s:
return float(s['duration'])
# if everything didn't happen,
# we got here because no single 'return' in the above happen.
raise Exception('I found no duration')
#return None
if __name__ == "__main__":
video_file_path = "/tmp/tt1.mp4"
duration(video_file_path) # 10.008
回答by mobcdi
As reported here https://www.reddit.com/r/moviepy/comments/2bsnrq/is_it_possible_to_get_the_length_of_a_video/
如此处报道https://www.reddit.com/r/moviepy/comments/2bsnrq/is_it_possible_to_get_the_length_of_a_video/
you could use the moviepy module
你可以使用moviepy模块
from moviepy.editor import VideoFileClip
clip = VideoFileClip("my_video.mp4")
print( clip.duration )
回答by chenyi1976
Find this new python library: https://github.com/sbraz/pymediainfo
找到这个新的 Python 库：https: //github.com/sbraz/pymediainfo
To get the duration:
获取持续时间：
from pymediainfo import MediaInfo
media_info = MediaInfo.parse('my_video_file.mov')
#duration in milliseconds
duration_in_ms = media_info.tracks[0].duration
Above code is tested against a valid mp4 file and works, but you should do more checks because it is heavily relying on the output of MediaInfo.
上面的代码针对有效的 mp4 文件进行了测试并且可以正常工作，但是您应该进行更多检查，因为它严重依赖 MediaInfo 的输出。
回答by Omar Ali
Open cmd terminal and install python package:mutagenusing this command
打开cmd终端并安装python包：mutagen使用这个命令
python -m pip install mutagen
python -m pip install mutagen
then use this code to get the video duration and its size:
然后使用此代码获取视频持续时间及其大小：
import os
from mutagen.mp4 import MP4
audio = MP4("filePath")
print(audio.info.length)
print(os.path.getsize("filePath"))
回答by DeWil
from subprocess import check_output
file_name = "movie.mp4"
#For Windows
a = str(check_output('ffprobe -i "'+file_name+'" 2>&1 |findstr "Duration"',shell=True))
#For Linux
#a = str(check_output('ffprobe -i "'+file_name+'" 2>&1 |grep "Duration"',shell=True))
a = a.split(",")[0].split("Duration:")[1].strip()
h, m, s = a.split(':')
duration = int(h) * 3600 + int(m) * 60 + float(s)
print(duration)
回答by vossman77
for anyone that like using the mediainfoprogram:
对于喜欢使用mediainfo程序的任何人：
import json
import subprocess
#===============================
def getMediaInfo(mediafile):
cmd = "mediainfo --Output=JSON %s"%(mediafile)
proc = subprocess.Popen(cmd, shell=True,
stderr=subprocess.PIPE, stdout=subprocess.PIPE)
stdout, stderr = proc.communicate()
data = json.loads(stdout)
return data
#===============================
def getDuration(mediafile):
data = getMediaInfo(mediafile)
duration = float(data['media']['track'][0]['Duration'])
return duration
回答by sr9yar
A function I came up with. This is basically using only ffprobearguments
我想出来的一个函数。这基本上只使用参数ffprobe
from subprocess import check_output, CalledProcessError, STDOUT
def getDuration(filename):
command = [
'ffprobe',
'-v',
'error',
'-show_entries',
'format=duration',
'-of',
'default=noprint_wrappers=1:nokey=1',
filename
]
try:
output = check_output( command, stderr=STDOUT ).decode()
except CalledProcessError as e:
output = e.output.decode()
return output
fn = '/app/648c89e8-d31f-4164-a1af-034g0191348b.mp4'
print( getDuration( fn ) )
Outputs duration like this:
输出持续时间如下：
7.338000
回答by hydra3333
The above pymediainfo answer really helped me. Thank you.
上面的 pymediainfo 答案确实对我有帮助。谢谢你。
As a beginner, it did take a while to find out what was missing (sudo apt install mediainfo) and how to also address attributes in other ways (see below).
作为初学者，确实需要一段时间才能找出缺少的内容（sudo apt install mediainfo）以及如何以其他方式处理属性（见下文）。
Hence this additional example:
因此这个额外的例子：
# sudo apt install mediainfo
# pip3 install pymediainfo
from pymediainfo import MediaInfo
media_info = MediaInfo.parse('/home/pi/Desktop/a.mp4')
for track in media_info.tracks:
#for k in track.to_data().keys():
# print("{}.{}={}".format(track.track_type,k,track.to_data()[k]))
if track.track_type == 'Video':
print("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++")
print("{} width {}".format(track.track_type,track.to_data()["width"]))
print("{} height {}".format(track.track_type,track.to_data()["height"]))
print("{} duration {}s".format(track.track_type,track.to_data()["duration"]/1000.0))
print("{} duration {}".format(track.track_type,track.to_data()["other_duration"][3][0:8]))
print("{} other_format {}".format(track.track_type,track.to_data()["other_format"][0]))
print("{} codec_id {}".format(track.track_type,track.to_data()["codec_id"]))
print("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++")
elif track.track_type == 'Audio':
print("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++")
print("{} format {}".format(track.track_type,track.to_data()["format"]))
print("{} codec_id {}".format(track.track_type,track.to_data()["codec_id"]))
print("{} channel_s {}".format(track.track_type,track.to_data()["channel_s"]))
print("{} other_channel_s {}".format(track.track_type,track.to_data()["other_channel_s"][0]))
print("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++")
print("********************************************************************")
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Video width 1920
Video height 1080
Video duration 383.84s
Video duration 00:06:23
Video other_format AVC
Video codec_id avc1
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Audio format AAC
Audio codec_id mp4a-40-2
Audio channel_s 2
Audio other_channel_s 2 channels
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
回答by Mina Abd El-Massih
As reported here https://www.reddit.com/r/moviepy/comments/2bsnrq/is_it_possible_to_get_the_length_of_a_video/
you could use the moviepy module
from moviepy.editor import VideoFileClip clip = VideoFileClip("my_video.mp4") print( clip.duration )
如此处报道 https://www.reddit.com/r/moviepy/comments/2bsnrq/is_it_possible_to_get_the_length_of_a_video/
你可以使用moviepy模块
from moviepy.editor import VideoFileClip clip = VideoFileClip("my_video.mp4") print( clip.duration )
If you're trying to get the duration of many videos in a folder it'll crash giving the error: AttributeError: 'AudioFileClip' object has no attribute 'reader'
如果您尝试获取文件夹中许多视频的持续时间，它会崩溃并给出错误：AttributeError: 'AudioFileClip' object has no attribute 'reader'
So, in order to avoid that you'll need to add
因此，为了避免这种情况，您需要添加
clip.close()
Based on this: https://zulko.github.io/moviepy/_modules/moviepy/video/io/VideoFileClip.html
基于此：https: //zulko.github.io/moviepy/_modules/moviepy/video/io/VideoFileClip.html
So the code would look like this:
所以代码看起来像这样：
from moviepy.editor import VideoFileClip
clip = VideoFileClip("my_video.mp4")
print( clip.duration )
clip.close()
Cheers! :)
干杯! :)
