Hi,

does kdenlive support VP9? If yes: How do I get it to render to a VP9 file?

You could try to set up a custom render profile with codec vp9, which at least is listed in ffmpeg -codecs.

Further help:
https://userbase.kde.org/Kdenlive/Manua ... r_Profiles
https://userbase.kde.org/Kdenlive/Manua ... Parameters

I tried this

Code: Select all

acodec=aac ar=48000 ab=%audiobitrate+'k' vcodec=VP9 vb=%bitrate+'k' aspect=%dar pass=%passes

With webm as container, but kdenlive replied with "not supported video codec: vp9"

Based on your profile I played around a little bit... Looking at the mlt homepage I found out, the vcodec must be libvpx. Then the profile can be saved, but still does not render. The profile seems to be for older rendering formats.

Further investigation showed that there is a webm profile (with quality presets) in the render destination "Internet" section. Rendering a color clip and a wav-file with this profile gave a file of which ffprobe reports this (looks like VP8):
Input #0, matroska,webm, from 'test.webm':
Metadata:
encoder : Lavf56.25.101
Duration: 00:00:05.00, start: 0.000000, bitrate: 54 kb/s
Stream #0:0: Video: vp8, yuv420p, 1920x1080, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)

You may tweak the profile settings in the mlt file located here and get VP9 as output:
/usr/share/mlt/presets/consumer/avformat/webm

Found a VP9 render profile "accidently" when checking menu entries: Settings->Download new render profiles
j-b-m added a WebM/VP9 profile.

When I go to Settings->Download new render profiles it says that it can't load the providers from https://kdenlive.org/data/rendersources.xml

But I also found this: https://kdenlive.org/node/9432 which works quite well

node 9432 seems to be the profile I have found yesterday. If that profile does its job, you may want to mark this topic as solved.