🎬 VideoWeaver

I-frame Accurate, Fast & Lossless Video Editing Tool

Overview

VideoWeaver is a tool for extracting, deleting, and merging video clips with I-frame precision in a fast and lossless manner. Since no re-encoding is performed, processing is quick and there is no quality degradation.

🎯 Key Features

Integration with MPC-BE/MPC-HC eliminates manual time input.

• Press "Get Position" button to retrieve time position
• Auto-detect on pause feature automatically detects player pause and retrieves time position
• Enables accurate and efficient workflow

Distribution Files

• Download (12.1MB)

Main Features

📌 Extract

• Specify multiple ranges to extract
• Merge into single file or save separately
• Perfect for creating highlight reels

🗑️ Delete

• Specify unwanted ranges to delete
• Automatically merge remaining parts
• Perfect for cutting commercials

🔗 Merge

• Merge multiple files
• Compatibility check feature
• Perfect for combining series videos

Technical Features

⚡ High-Speed Processing

• No re-encoding
• Process 5-minute videos in seconds

🎯 I-frame Precision

• Accurate cutting
• No video artifacts

📖 Chapter Support

• Automatic chapter insertion
• MP4/MKV support

🖱️ MPC-BE Integration

• Auto position retrieval on pause
• Smooth workflow

Supported Formats

System Requirements

• Windows 11 / 10
• ffmpeg / ffprobe (required)
• MPC-BE or MPC-HC (only if using position detection feature)

Installation

1. ffmpeg Installation

Download from official site: https://ffmpeg.org/download.html

Verify installation: Run the following in Command Prompt

2. MPC-BE/MPC-HC Setup (Optional)

Download: MPC-BE or MPC-HC

1. Launch MPC-BE or MPC-HC
2. Select [View] → [Options] from menu
3. Select [Player] → [Web Interface]
4. Check "Listen on port"
5. Set port number to "13579"

How to Use

Launching

Double-click VideoWeaver.exe to launch.

Extract Feature

1. Select input file (Browse or Drag & Drop)
2. Play video in MPC-BE/MPC-HC
3. Turn ON "Auto-detect on pause" (recommended)
4. Pause at cut point → position is automatically retrieved
5. Click "Set Current" button to set start/end time
6. Click "Add Range" to add range to list
7. Select output mode:
   • "Merge into single file": Combine into one file
   • "Save as separate files": Save as individual files
8. Turn ON "Add chapters" if needed
9. Click "Execute"

Delete Feature

1. Select input file
2. Specify ranges to DELETE (same procedure as Extract feature)
3. Click "Add Range" to add deletion range to list
4. Remaining parts will be automatically merged
5. Click "Execute"

Merge Feature

1. Add files using "Add Files..." or Drag & Drop
2. Adjust file order using "Move Up/Down"
3. Specify output file name
4. Click "Execute"

Tips & Techniques

Auto-detect on pause Feature

When the checkbox is ON, position is automatically retrieved when you pause in MPC-BE/MPC-HC. This eliminates the need to press the "Get Position" button.

Drag & Drop

You can drag files directly from Explorer into the input file field or Merge list.

Output File Names

• Extract: originalname_extracted.extension
• Delete: originalname_deleted.extension
• Merge: specified file name

Notes

About Compatibility

When merging files with different resolutions, frame rates, or codecs, playback problems may occur. The Merge feature performs a compatibility check in advance.

About I-frame Positions

For lossless processing, cut positions are automatically adjusted to keyframe (I-frame) boundaries:

• Extract Function: Extracts from the keyframe immediately before the start position to the keyframe immediately after the end position.
• Delete Function: Deletes from the keyframe immediately after the start position to the keyframe immediately before the end position of the specified range.
• Keyframe Interval: Automatically detected when selecting input file and displayed in the Input File section (typically 2-4 seconds).

If you need frame-accurate precision, please use video editing software that supports re-encoding.

About Temporary Files

Temporary files are created during processing but are automatically deleted after completion.

Troubleshooting

"Cannot connect to MPC-BE/MPC-HC" Error

• Verify that MPC-BE or MPC-HC is running
• Verify that Web Interface is enabled
• Verify that port number is set to 13579

"ffmpeg not found" Error

• Verify that ffmpeg is installed
• Verify that it's set in PATH environment variable
• Run "ffmpeg -version" in command prompt to verify

Auto-detect on pause Not Working

• Verify that checkbox is ON
• Verify that MPC-BE/MPC-HC Web Interface is enabled
• Try restarting VideoWeaver

Technical Information

Processing Method

Uses ffmpeg's "-c copy" option for stream copying (no re-encoding). This provides:

• Processing time: Process 5-minute videos in seconds
• Quality: Completely lossless
• CPU load: Minimal

Version History

Version 1.2.0 (2026/02/02)

• Improved encoding handling: Better error information retention for Japanese filenames and paths
• Enhanced temporary file cleanup: Reliable deletion even on errors
• Improved FFmpeg path detection: Priority for FFmpeg in same folder as executable
• Enhanced time format validation: Added millisecond range checking
• Improved error handling consistency
• Enhanced code quality and maintainability

Version 1.0 (2026/01/23)

• Initial release
• Extract function: Multi-range extraction and merging
• Delete function: Remove unwanted ranges with auto-merging
• Merge function: Combine multiple files
• MPC-BE/MPC-HC integration: Auto position detection
• Automatic keyframe interval detection and display
• Auto chapter insertion (MP4/MKV)
• Accurate chapter positioning based on measured durations

License

This software is provided without warranty.

VideoWeaver © 2026 | Making Video Editing More Free