Does this tool actually convert my video?

No. This is a command generator. It produces the correct FFmpeg command for your settings. You then run that command in your own terminal using a local FFmpeg installation.

Where do I get FFmpeg?

Download FFmpeg from ffmpeg.org. On macOS use `brew install ffmpeg`, on Ubuntu/Debian use `sudo apt install ffmpeg`, on Windows download a pre-built binary from gyan.dev or BtbN's GitHub releases.

What does the CRF / quality value control?

CRF (Constant Rate Factor) controls the balance between file size and quality. Lower values (e.g. 18) produce larger, higher-quality files. Higher values (e.g. 28) produce smaller, lower-quality files. A value of 23 is a sensible default for most content.

When should I use "stream copy" instead of re-encoding?

Use stream copy (-c:v copy) when you only want to change the container without touching the compressed video data. It is instant and lossless, but only works if the source codec is already compatible with AVI (e.g. MPEG-4, DivX).

Is WMV 9 (VC-1) supported inside AVI?

AVI technically supports VC-1 streams, but compatibility is very limited. Re-encoding to MPEG-4 or XviD is strongly recommended for broad compatibility when converting from WMV 9 sources.

Will quality be lost during conversion?

Any re-encode introduces minor generation loss. Using a low CRF value (18–20) keeps quality very close to the original. The "stream copy" mode is the only truly lossless option, but it requires a codec the AVI container can hold.

WMV to AVI Converter

Name: WMV to AVI Converter
Availability: InStock
Author: Nham Vu

Generate the correct FFmpeg command to convert WMV video files to AVI format with your chosen codec and quality settings.

Conversion Settings

Input filename

Output filename

Video codec

Audio codec

Video quality (CRF) 23 — lower = better quality

15 (high quality) 35 (small file)

FFmpeg Command

Before you run the command

1
Install FFmpeg
macOS: brew install ffmpeg | Ubuntu: sudo apt install ffmpeg | Windows: download from gyan.dev
2
Open a terminal in the same folder
Place the WMV file and the terminal's working directory in the same folder, or use an absolute path in the filename fields above.
3
Run the command
Paste the generated command and press Enter. FFmpeg will display progress until conversion completes.
4
Check the output
Open the resulting AVI file in a media player to verify audio/video sync and quality.

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