this post was submitted on 10 Aug 2024
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vt-enc is a bash script that simplifies the process of encoding videos with FFmpeg using Apple's VideoToolbox framework on macOS. It provides an easy-to-use command-line interface for encoding videos with various options, including codec selection, quality settings, and scaling.

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[–] [email protected] 1 points 2 months ago (1 children)

An alternative: https://alfg.dev/ffmpeg-commander/

Provides a web interface to generate ffmpeg commands (works on every platform).

Out of interest: What does VideoToolbox do in that context? I found nothing in the readme that would require anything else than just ffmpeg. Or is it just the compiling of a custom ffmpeg build that is VT specific?

[–] [email protected] 1 points 2 months ago (1 children)

VideoToolbox is the encoder that FFmpeg links to.

[–] [email protected] 1 points 2 months ago (1 children)

So when vt-enc only creates ffmpeg commands why is VT a dependency for the whole prpject?

[–] [email protected] 2 points 2 months ago (1 children)

vt-enc calls FFmpeg which calls the VideoToolbox encoding framework. Without VT, ffmpeg commands will fail

[–] [email protected] 1 points 2 months ago* (last edited 2 months ago) (1 children)

But ffmpeg works fine on other platforms without VideoToolbox. So why do I need VT for vt-enc? Wouldn't it work just fine on other platforms as long as ffmpeg is available?

[–] [email protected] 0 points 2 months ago

You need VideoToolbox for this particular tool because it calls the VideoToolbox library from within FFmpeg in order to encode the video.

"Why do I need x264 to encode H.264 in FFmpeg?" is essentially what you're asking. FFmpeg needs VideoToolbox support to work with my tool.

If you're asking why I chose to use VideoToolbox in the first place, it was because I want this to be a macOS-specific tool with very fast encoding speeds at decent fidelity per bit. Hardware accelerated video encoding is one way to make this happen.