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ReverseVideo

What is it?

The ReverseVideo node reverses the playback direction of your video, making it play backwards. It can also handle audio reversal or muting depending on your needs.

When would I use it?

Use the ReverseVideo node when:

  • You want to create backwards playback effects
  • You need to reverse footage for artistic or creative purposes
  • You're creating special effects that require reverse motion
  • You want to add surreal or dreamlike qualities to your video
  • You need to reverse specific segments for editing purposes
  • You're making content that requires backwards motion analysis

How to use it

Basic Setup

  1. Add a ReverseVideo node to your workflow
  2. Connect a video source to the "video" input
  3. Choose how to handle audio (reverse, mute, or keep original)
  4. Run the workflow to reverse the video

Parameters

  • video: The video content to reverse (supports VideoArtifact and VideoUrlArtifact)

  • audio_handling: How to handle audio (default: "reverse")

    • "reverse" = reverse both video and audio (recommended)
    • "mute" = reverse video only, no audio
    • "keep" = reverse video, keep original audio (not recommended)

  • processing_speed: Balance between processing speed and output quality (default: "balanced")

    • fast: Fastest processing, lower quality (ultrafast preset, CRF 30)
    • balanced: Good balance of speed and quality (medium preset, CRF 23)
    • quality: Highest quality, slower processing (slow preset, CRF 18)

Outputs

  • video: The reversed video, available as output to connect to other nodes

Example

Imagine you want to create a backwards playback effect:

  1. Add a ReverseVideo node to your workflow
  2. Connect the video output from a LoadVideo node to the ReverseVideo's "video" input
  3. Set "audio_handling" to "reverse" to reverse both video and audio
  4. Run the workflow - the video will play backwards
  5. The output filename will be {original_filename}_reversed_reverse.{format}

Important Notes

  • The ReverseVideo node uses FFmpeg with high-quality reverse processing
  • Reversing both video and audio creates the most natural backwards effect
  • Muting audio is recommended if you want to avoid strange backwards audio
  • The "keep" option may create audio sync issues
  • Processing time depends on video length
  • Logs are available for debugging processing issues
  • The node automatically detects if the video has audio and handles it appropriately
  • Videos without audio will be processed correctly without errors

Audio Handling Recommendations

  • For natural backwards effect: Use "reverse" - both video and audio play backwards
  • For silent backwards effect: Use "mute" - video plays backwards with no audio
  • For custom audio: Use "mute" and add your own audio track separately

Common Issues

  • Processing Timeout: Large videos may take longer to process; the node has a 5-minute timeout
  • Strange Audio: If audio sounds odd, try using "mute" instead of "reverse"
  • Audio Sync Issues: The "keep" option may cause audio/video synchronization problems
  • No Video Input: Make sure a video source is connected to the "video" input
  • FFmpeg Errors: Check the logs parameter for detailed error information if processing fails