Blackmagic Forum

I've been scratching my head for a while for finding ways to import my webm videos to DaVinci Resolve. I know there is a way with the converters but, seeking for the optimal one.

I'm interested in this as well.
BUMBP

Webm is not a supported container.
There are 2 ways to get to a supported container: 1) Change container and 2) recompress.
Since webm supports VP8, VP9 and AV1 and Resolve only supports VP9 (https://documents.blackmagicdesign.com/ ... c_List.pdf ) you need to make sure it's a VP9 file before progressing the first path.

If it IS a VP9 it's a simple container change. Any ffmpeg frontend (or the program itself) can do that.


The second path is to convert the codec to a supported one. There are many options here, for true losless/ease of use some people prefer DNxHR/Prores, I prefer mpeg4 (the fmpeg codec, not the container) Constant Quantizer 0.


I prefer Xmedia Recode (https://www.xmedia-recode.de/en/download.html) but handbrake or Convert V6 are other options. The workflow is the same (as they are all ffmpeg frontends): Open program, open files, set container (MOV or MP4), set video codec (as above), set audio codec, convert.
I have tested that despite what that Supported Codec List says, Resolve supports VP9 in a MP4 container.

You can try this program


http://www.avidemux.org/nightly/

For those interested in the exact solution:

Code: Select all

ffmpeg -i ./YouTube-livestream-download-1440p.webm \
  -c:a copy -c:v copy \
  ./YouTube-livestream-download-1440p.mkv

Easiest way to get `ffmpeg`: https://webinstall.dev/ffmpeg

Thanks for the tip @coolaj86 unfortunately this won't work if you use DaVinci Resolve 16 because it does not support MKV.

It does support MP4 with VP9 though, so you can use ffmpeg to copy video stream to mp4, and transcode WebM opus audio into AAC.

Code: Select all

 ffmpeg.exe -i .\menu.webm -c:a aac -b:
a 192k -c:v copy menu2.mp4

This command will produce file compatible with DaVinci Resolve 16. You still need to transform color space from HDR to SDR but it's easily done in color tab.

I know I might be a tad late but why not use the "Swiss Army knife" of video transcoder/converters ...

https://handbrake.fr/

Supports webm, mkv, and mp4

https://handbrake.fr/features.php

https://handbrake.fr/downloads.php

https://handbrake.fr/docs/

https://github.com/HandBrake/HandBrake

works with Mac, Windoze and Linux

GV