blocks|key|2201404|text|您看到的WindowsError不引用视频文件，而是引用ffmpeg可执行文件本身。对subprocess.call的调用不知道trimmed.mp4是要传递的文件名。Windows知道第一个参数应该是一个可执行文件，并向解释器报告它找不到它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2201405|反复检查ffmpeg是否可以在您的解释器运行的环境中执行。您可以将它添加到您的PATH中，或者指定到ffmpeg.exe的完整路径。|2201406|entityMap^0|4|C|S|6|17|F|1S|B|0|4|6|13|4|1E|A|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|I|$]]

The <code>WindowsError</code> you see does not refer to the video file but to the <code>ffmpeg</code> executable itself. The call to <code>subprocess.call</code> has no idea that <code>trimmed.mp4</code> is a filename you are passing. Windows knows that the first parameter ought to be an executable file and reports back to the interpreter that it can't find it.
Double-check that <code>ffmpeg</code> can be executed in the environment your interpreter is running in. You may either add it to your <code>PATH</code> or specify the full path to <code>ffmpeg.exe</code>.

blocks|key|908004|text|以上的答案对我都没有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|908005|我打开了>+CMD提示符，让它正常工作。|908006|conda+install+ffmpeg|code-block|syntax|javascript|908007|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

None of the above answers worked for me.
I got it working, by opening Anaconda Navigator &gt; CMD prompt.
<pre><code>conda install ffmpeg
</code></pre>

blocks|key|2238736|text|这个答案是针对ffmpeg-python库的Windows用户的，因为这个问题是针对同一问题的更严格实例的第一个搜索结果。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2238737|添加到user2722968的答案，因为现有的答案都没有为我解决问题。|2238738|在这篇文章中，ffmpeg-python使用subprocess.Popen运行ffmpeg。每一个这问题，subprocess在解析名称时都不会在Path中查找，所以即使安装了FFmpeg，在您的Path中并且您可以从CMD/PowerShell运行它，ffmpeg-python也可能无法使用它。|2238739|我的解决方案是将ffmpeg.exe复制到python.exe所在的Python环境中。这一解决办法似乎远非理想，但它似乎解决了我的问题。|2238740|entityMap|0|LINK|mutability|MUTABLE|url|https://bugs.python.org/issue17023^0|7|D|0|0|7|D|M|G|14|6|1I|A|22|4|2R|4|3K|D|1E|1|0|0|8|A|L|A|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]|$9|12|A|13|B|C]|$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|J|3|K|5|6|7|1F|8|@$9|1G|A|1H|B|C]|$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|L|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S]]]]

This answer is directed at Windows users of the <code>ffmpeg-python</code> library since this question is the first search result for a stricter instance of the same issue.
Adding on to user2722968's answer because neither of the existing answers solved the problem for me.
As of this post, <code>ffmpeg-python</code> uses <code>subprocess.Popen</code> to run <code>ffmpeg</code>. Per <a href="https://bugs.python.org/issue17023" rel="nofollow noreferrer">this</a> issue, <code>subprocess</code> does not look in <code>Path</code> when resolving names, so even if FFmpeg is installed and in your <code>Path</code> and you can run it from CMD/PowerShell, <code>ffmpeg-python</code> may not be able to use it.
My solution was to copy <code>ffmpeg.exe</code> into the Python environment where <code>python.exe</code> is. This workaround seems far from ideal but it seems to have solved the problem for me.

blocks|key|2201445|text|大多数答案都不管用。下面是使用conda+env对我有用的内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2201446|pip+uninstall+ffmpeg-python
conda+install+ffmpeg
pip+install+ffmpeg-python|code-block|syntax|javascript|2201447|只是conda安装提供了库，没有找到错误。也没有尝试卸载conda库，但这是可行的。|2201448|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Most of the answers didn't work. Here is what worked for me using conda env:
<pre><code>pip uninstall ffmpeg-python
conda install ffmpeg
pip install ffmpeg-python
</code></pre>
Just the conda installation gives library not found error. Didn't try uninstalling conda library either but this works.

blocks|key|2238747|text|首先卸载所有pip库|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2238748|pip+uninstall+ffmpeg
pip+uninstall+ffmpeg-python|code-block|syntax|javascript|2238749|然后使用conda安装|2238750|conda+install+ffmpeg|2238751|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

First Uninstall all pip libraries
<pre><code>pip uninstall ffmpeg
pip uninstall ffmpeg-python
</code></pre>
Then install using conda
<pre><code>conda install ffmpeg
</code></pre>

blocks|key|908058|text|我也有过同样的问题！我找到了解决办法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|908059|我意识到，看到所有这些答案，我需要安装ffmpeg。我试过‘’，但没成功。起作用的是将ffmpeg.exe文件复制到python.exe所在的文件夹中。这里有人提到过。谢谢!要下载ffmpeg.exe文件，请从https://github.com/GyanD/codexffmpeg/releases/tag/2022-06-06-git-73302aa193下载zip文件|offset|length|908060|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/GyanD/codexffmpeg/releases/tag/2022-06-06-git-73302aa193^0|0|2X|23|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

I had the same issue!
And I FOUND A SOLUTION.
I realised, viewing all these answers that I need to install ffmpeg. I tried 'pip install ffmpeg' but that didn't work. What worked was copying the ffmpeg.exe file to the folder that python.exe is in.
Thats what someone up here mentioned. Thank you!
To download the ffmpeg.exe file, download the zip file from <a href="https://github.com/GyanD/codexffmpeg/releases/tag/2022-06-06-git-73302aa193" rel="nofollow noreferrer">https://github.com/GyanD/codexffmpeg/releases/tag/2022-06-06-git-73302aa193</a>

In the process of using the ffmpeg module to edit video files i used the subprocess module 

The code is as follows:

<pre><code>#trim bit

import subprocess
import os
seconds = "4"
mypath=os.path.abspath('trial.mp4')
subprocess.call(['ffmpeg', '-i',mypath, '-ss', seconds, 'trimmed.mp4'])
</code></pre>

Error message:

<pre><code>Traceback (most recent call last):
 File "C:\moviepy-master\resizer.py", line 29, in &lt;module&gt;
 subprocess.call(['ffmpeg', '-i',mypath, '-ss', seconds, 'trimmed.mp4'])
 File "C:\Python27\lib\subprocess.py", line 168, in call
 return Popen(*popenargs, **kwargs).wait()
 File "C:\Python27\lib\subprocess.py", line 390, in __init__
 errread, errwrite)
 File "C:\Python27\lib\subprocess.py", line 640, in _execute_child
 startupinfo)
WindowsError: [Error 2] The system cannot find the file specified
</code></pre>

After looking up similar problems i understood that the module is unable to pick the video file because it needs its path, so i took the absolute path. But in spite of that the error still shows up.
The module where this code was saved and the video file trial.mp4 are in the same folder.

The system cannot find the file specified with ffmpeg

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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在使用ffmpeg模块编辑视频文件的过程中，我使用了子处理模块。守则如下：#trim bitimport subprocessimport osseconds = "4"mypath=os.path.abspath('trial.mp4')subprocess.call(['ffmpeg', '-i',mypath, ...

问系统找不到用ffmpeg指定的文件。
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问系统找不到用ffmpeg指定的文件。EN