Body: <p>I've read through the 62-page FFmpeg doc. It's a great reference but not so good a teacher for someone new to video production. I joined the mail list but there seems to be no traffic on it. I hope here is where I can learn what I need to be productive.</p>
  <p>Using <code>ffmpeg -devices</code> shows me that my Logitech c925e webcam is video0 and video1, but the command <code>ffmpeg -list_devices true -f dshow -i dummy</code> found on several web pages results in this output:</p>
  <blockquote>
  <p>Unrecognized option 'list_devices'. Error splitting the argument list:<br />
  Option not found</p>
  </blockquote>
  <p>Using</p>
  <pre><code>ffmpeg -i /dev/video0 -i pulse -c:v copy -c:a aac output.mp4 
  </code></pre>
  <p>results in:</p>
  <blockquote>
  <p>pulse: No such file or directory</p>
  </blockquote>
  <p>How do I specify the webcam and headset mic to record a video?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-02-12T04:15:16.240Z
Comments.Text: `dshow` only applies on Windows. Are you on linux?
Comments.UserDisplayName: Gyan
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-02-13T15:31:49.603Z
Comments.Text: I apologize. Yes, I run linux and I had learned that dshow is only for Windows. I've saved a number of web pages with example for various ffmpeg tasks and most don't specify that they apply to one OS only.
Comments.UserDisplayName: Rich Shepard
Tags: <ffmpeg>
Title: Learning FFmpeg: video from webcam, audio from headset mic
UserDisplayName: Rich Shepard
ThreadText: # Learning FFmpeg: video from webcam, audio from headset mic
  
  (Asked by: username_0 on 2021-02-12)
  
  I've read through the 62-page FFmpeg doc. It's a great reference but not so good a teacher for someone new to video production. I joined the mail list but there seems to be no traffic on it. I hope here is where I can learn what I need to be productive.
  
  Using `ffmpeg -devices` shows me that my Logitech c925e webcam is video0 and video1, but the command `ffmpeg -list_devices true -f dshow -i dummy` found on several web pages results in this output:
  
  > Unrecognized option 'list\_devices'. Error splitting the argument list:  
  > Option not found
  
  Using
  
  ```
  ffmpeg -i /dev/video0 -i pulse -c:v copy -c:a aac output.mp4 
  
  ```
  
  results in:
  
  > pulse: No such file or directory
  
  How do I specify the webcam and headset mic to record a video?
  
  **Tags:** ffmpeg
  
  > **Comments:**
  > **username_1**: `dshow` only applies on Windows. Are you on linux?  
  > **username_0**: I apologize. Yes, I run linux and I had learned that dshow is only for Windows. I've saved a number of web pages with example for various ffmpeg tasks and most don't specify that they apply to one OS only.  
  
  ---
  
  ## 0 answers
  
  