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Fu-Jie_openwebui-extensions/docs/plugins/pipes/video-processing-example.md

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Case Study: High-Quality Video to GIF Conversion

This case study demonstrates how to use the GitHub Copilot SDK Pipe with Minimax 2.1 to perform professional-grade video processing: accelerating a video by 1.4x and converting it into a high-quality GIF under 20MB.


🎥 Recording

Video Processing Demo

Scenario: The user uploaded a 38MB .mov recording and requested a 1.4x speed increase, 1280px width, and a file size limit of 20MB. The model automatically formulated, executed, and verified a two-pass FFmpeg workflow.


🛠️ Implementation

  • Plugin Type: Pipe (GitHub Copilot SDK)
  • Base Model: Minimax 2.1
  • Key Capabilities:
    • System Tool Access: Automatically detects and invokes ffmpeg within the container.
    • Two-Pass Optimization: 1. Pass 1: Analyzes all frames to generate a custom 256-color palette (palettegen). 2. Pass 2: Applies the palette for superior quantization and dithering (paletteuse).
    • Precision Parameters: Implements 1.4x PTS scaling, Lanczos scaling, and 20fps rate control.

💬 Conversation Highlights

📥 Import Conversation

You can download the raw chat data and import it into your Open WebUI to see how the model debugs and optimizes the FFmpeg parameters: :material-download: Download Chat JSON

How to Import? In Open WebUI, click your User Avatar (bottom of left sidebar) -> Settings -> Data -> Import Chats, then select the downloaded file.

1. Processing Requirements

The User provided an input file and specific parameters:

  • Speed: 1.4x (setpts=PTS/1.4)
  • Resolution: 1280px width, auto height
  • Optimization: Must use palette generation technology
  • Constraint: File size < 20MB

2. Analysis Execution

Minimax 2.1 generated and executed the following core logic:

# Pass 1: Generate optimal palette
ffmpeg -i input.mov -vf "fps=20,scale=1280:-1:flags=lanczos,setpts=PTS/1.4,palettegen" palette.png
# Pass 2: Generate final high-quality GIF
ffmpeg -i input.mov -i palette.png -lavfi "[0:v]fps=20,scale=1280:-1:flags=lanczos,setpts=PTS/1.4[v];[v][1:v]paletteuse" output.gif

3. Result Summary

Metric Original Video Processed GIF Status
File Size 38 MB 14 MB Success
Resolution 3024x1898 1280x803 Smooth
Speed 1.0x 1.4x Accurate
Color Quality N/A Optimal 256-color Crystal Clear

💡 Why This Case Matters

Standard LLMs can only "tell you" how to use FFmpeg. However, a Pipe powered by the GitHub Copilot SDK can:

  1. Interpret complex multimedia processing parameters.
  2. Access raw files within the filesystem.
  3. Execute resource-intensive binary tool tasks.
  4. Validate that the output (size, resolution) meets the user's hard constraints.

View GitHub Copilot SDK Pipe Documentation