Download and install the latest version of Filestar.
Right click on one or more M4v file(s) on your desktop and select Convert with Filestar.
Type convert to ffv1 in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.m4v -c "convert to ffv1" (how).
Downloads - File Explorer─☐✕
This PC › Downloads
Home
Desktop
Downloads
Documents
Pictures
Music
.m4vHoliday.m4v
.movClip.mov
.pdfInvoice.pdf
.exeSetup.exe
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert M4V to FFV1 (Lossless Video)
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the M4V files in my Downloads folder to FFV1 (Lossless Video)”
Or run it yourself:
filestarcli -i file.m4v -c "convert to ffv1"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent convert M4V to FFV1 (Lossless Video)?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.m4v -c "convert to ffv1" on your computer, so your files stay on it.
The M4V file format is a video container format developed by Apple and is very similar to the MP4 format, with the primary difference being the optional Apple Digital Rights Management (DRM) protection. M4V files are commonly used for TV episodes, movies, and music videos in the iTunes Store. These files can be played on Apple devices such as iPhones, iPads, and iPods, as well as on PCs using iTunes or other compatible media players.
