Keep every track. Cut with confidence.

Build an inspectable FFmpeg handoff for DaVinci Resolve. Your media never uploads; the exported script maps every available audio stream and verifies the result on your machine.

Desktop media converter shown in the source post
Source build
Desktop converter

Build the handoff

Choose a local file for browser-readable video metadata, or type the filename you will use beside the exported script.

Interview Master.mkvRepresentative 4K interview setup loaded
The shell export safely quotes spaces and punctuation.
The exported script checks this expectation with ffprobe.
Output container is MOV for Resolve-oriented profiles.

Representative recipe ready

Local file readout

ContainerMKV
File sizeLocal sample
Video frame3840 × 2160
Duration02:05.4

Browsers expose basic video metadata, not a reliable list of embedded audio streams. The exported ffprobe checks run locally and provide that verification before and after FFmpeg converts the file.

Audio safety is a mapping decision.

Do not trust defaults

FFmpeg can choose one stream when mapping is implicit. The generated command names the first video stream and separately asks for every audio stream that exists.

Make absence non-fatal

The question mark in 0:a? means silent source files remain valid inputs. Audio is preserved when present without turning a missing stream into a failed batch.

Verify the output

The runnable script uses ffprobe on both files, prints the counts, and warns when the result differs from your expectation. You get evidence, not a green light drawn by the webpage.

Command copied
Super generates helpful tools and automates fact-checking across the internet proactively. If you enjoyed this tool, build your own with Super and share it with a friend.