[FFmpeg-user] Works in ffmpeg-git, doesn't in ffmpeg 1:4.2.2-5

Kai Hendry hendry at iki.fi
Tue Apr 7 04:59:12 EEST 2020

For several months as an Archlinux user, kms screen capture has been broken in the standard ffmpeg package.

[h264_vaapi @ 0x55f36423d5c0] Pick nothing to encode next - need more input for reference pictures.
[hwmap @ 0x55f364244000] Filter input: drm_prime, 2560x1440 (60557866).
[AVHWFramesContext @ 0x55f36427c080] Map DRM object 11 to VAAPI as 58524742.
[AVHWFramesContext @ 0x55f36427c080] Failed to create surface from DRM object: 2 (resource allocation failed).
[Parsed_hwmap_0 @ 0x55f36424a2c0] Failed to map frame: -5.
Error while filtering: Input/output error
Failed to inject frame into filter network: Input/output error

I reported the issue here:

And it works in ffmpeg-git.

The resolution of the ticket was "invalid", but the problem remains, that the ffmpeg release doesn't work.

So how can I help get a stable release out?
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