Playback speed (--speed), vaapi-copy and --lavfi-complex

ArchangeGabriel commented 6 years ago

mpv version and platform

0.27, ArchLinux (0.28 is waiting for ffmpeg upgrade)

Reproduction steps

Try to play two videos side by side with with lavfi-complex, changing playback speed and using vaapy-copy as hwdec (since no-copy one cannot work with lavfi-complex), as following for instance:

mpv --hwdec=vaapi-copy --speed=10 <video1.mkv> --external-file=<video2.mkv> --lavfi-complex='[vid1] [vid2] hstack [vo]'

Expected behavior

Both videos are played side-by-side with a play back speed of x10.

Actual behavior

Videos are played at their normal speed. Using --hwdec=no works, and --hwdec=vaapi-copy --speed=10 works when used on a single video.

Log file

https://paste.xinu.at/3hdsr/

ghost commented 6 years ago

Works here. Maybe your hardware is just too slow.

Akemi commented 5 years ago

if the issue still persists, please open a new issue.

mpv-player / mpv