Answers.Body: <p>Simply chain the filters in a sequence.</p>
  <p><code>ffmpeg -i video.mp4 -vf &quot;drawbox=x=0:y=0:w=5:h=3:color=#ff0000:t=fill:enable='not(mod(n,2))',drawbox=x=0:y=0:w=5:h=3:color=#00ff00:t=fill:enable='mod(n,2)'&quot; greenred.mp4</code></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-12-01T09:08:07.417Z
Answers.LastActivityDate: 2024-12-01T09:08:07.417Z
Answers.UserDisplayName: Gyan
Body: <p>I have a task to label video frames. I need to mark all odd frames of a video with green pixels and even ones with red pixels. I do this in two steps:</p>
  <p><code>ffmpeg -i video.mp4 -filter_complex &quot;drawbox=x=0:y=0:w=5:h=3:color=#ff0000:t=fill:enable='not(mod(n,2))'&quot; green.mp4</code></p>
  <p><code>ffmpeg -i green.mp4 -filter_complex &quot;drawbox=x=0:y=0:w=5:h=3:color=#00ff00:t=fill:enable='mod(n,2)'&quot; greenred.mp4</code></p>
  <p>Can you please tell me how to combine this into one step?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-12-01T08:50:37.223Z
Comments.Text: Hi Dmitry - please post future questions in English, as this site is English speaking only. 
  I used google translate for you this time.
Comments.UserDisplayName: Dr Mayhem
Tags: <ffmpeg>
Title: How can I combine these ffmpeg commands into one step?
UserDisplayName: Dmitry
ThreadText: # How can I combine these ffmpeg commands into one step?
  
  (Asked by: username_0 on 2024-12-01)
  
  I have a task to label video frames. I need to mark all odd frames of a video with green pixels and even ones with red pixels. I do this in two steps:
  
  `ffmpeg -i video.mp4 -filter_complex "drawbox=x=0:y=0:w=5:h=3:color=#ff0000:t=fill:enable='not(mod(n,2))'" green.mp4`
  
  `ffmpeg -i green.mp4 -filter_complex "drawbox=x=0:y=0:w=5:h=3:color=#00ff00:t=fill:enable='mod(n,2)'" greenred.mp4`
  
  Can you please tell me how to combine this into one step?
  
  **Tags:** ffmpeg
  
  > **Comments:**
  > **username_1**: Hi username_0 - please post future questions in English, as this site is English speaking only.  I used google translate for you this time.  
  
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  ## 1 answers
  
  ### Answer by username_2 on 2024-12-01. Score: 0
  
  Simply chain the filters in a sequence.
  
  `ffmpeg -i video.mp4 -vf "drawbox=x=0:y=0:w=5:h=3:color=#ff0000:t=fill:enable='not(mod(n,2))',drawbox=x=0:y=0:w=5:h=3:color=#00ff00:t=fill:enable='mod(n,2)'" greenred.mp4`
  
  
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