I love this, be interesting if this could make an in-browser video editor
Just a thought - is the text “Click to upload” with a cloud icon perhaps a bit misleading?<p>If it’s fully client side, then you are just opening a file in essence - no clouds in sight!
Yeah, if the author sees this, it would be best to change this to "Click to Open". We can argue about the icon (I would say the floppy image), but seeing the word "upload" with a cloud icon 1000% means "send this up to the Internet."
I agree something like a folder or file icon would be more accurate.
I guess UI-wise some changes wouldn't be bad, but I am
just glad it works. I am currently converting an ancient
.mpg into a .mp4; I could do so via ffmpeg from the
commandline, but I always forget which options to use,
so a GUI kind of frees brain space here.
Nice interface at a first glance, for sure can be useful for users who would find using the actual thing too cumbersome. How does performance compare to the native app? Is any form of hardware decoding/encoding like h264_nvenc available? (I guess not?)
FFmpeg is so useful for TTS
Any chance those AVX-512 optimizations they released a while ago work within this? [1]<p>[1] <a href="https://www.phoronix.com/news/FFmpeg-July-2025-AVX-512" rel="nofollow">https://www.phoronix.com/news/FFmpeg-July-2025-AVX-512</a>
I think WASM SIMD is only 128-bit wide.
Note those only apply to scene_sad which is used for scene change detection and freeze detection and a few other things like mpdecimate -- it's a very specific use case
vibe-coded, and the github repo does not even contain the sources, just a single 'server.js' that is only for the documentation
this is ffmpeg running inside the browser am I correct? did not know this was possible. wonder what else we can run via webassembly
This is dope. Made a PR.
Interesting idea - must have been a lot of work to add
all those features. I just tried it and it works locally
too, which is pretty epic.
From <a href="https://news.ycombinator.com/item?id=44717303">https://news.ycombinator.com/item?id=44717303</a> :<p>> <i>Objective metrics and tools for video encoding and source signal quality: netflix/vmaf, easyVmaf, psy-ex/metrics, ffmpeg-quality-metrics,</i><p>netflix/vmaf: <a href="https://GitHub.com/netflix/vmwaf" rel="nofollow">https://GitHub.com/netflix/vmwaf</a><p>gdavila/easyVmaf: <a href="https://github.com/gdavila/easyVmaf" rel="nofollow">https://github.com/gdavila/easyVmaf</a><p>psy-ex/metrics: <a href="https://github.com/psy-ex/metrics/" rel="nofollow">https://github.com/psy-ex/metrics/</a><p>slhck/ffmpeg-quality-metrics: Calculate quality metrics with FFmpeg (SSIM, PSNR, VMAF, VIF) <a href="https://github.com/slhck/ffmpeg-quality-metrics" rel="nofollow">https://github.com/slhck/ffmpeg-quality-metrics</a><p>Something like this would be great too:<p>The Ardour Manual > Loudness Analyzer and Normalizer: <a href="https://manual.ardour.org/mixing/basic-mixing/loudness-analyzer-and-normalizer/" rel="nofollow">https://manual.ardour.org/mixing/basic-mixing/loudness-analy...</a>
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