Video opnemen

Kdenlive biedt functionaliteit voor het opnemen van video met Decklink van Blackmagic en via ScreenGrab.

Voor andere apparaten, meestal verbonden via Firewire (ook bekend als IEEE 1394 High Speed Serial Bus) kaart en kabel, gebruik dvgrab direct in een terminal.

You configure video capturing from Menu ‣ Settings ‣ Configure Kdenlive ‣ Capture (more on this in the chapter Kdenlive configureren).

U definieert de doelmap van uw opnames door Instellingen ‣ Kdenlive configureren ‣ Omgeving ‣ Standaard Mappen (meer hierover Kdenlive configureren).

Opname van beeldscherm

This captures video off the PC screen. Enable the Screen Grab widget via Menu ‣ View ‣ Screen Grab.

Hint

Any issues or errors with the screen grab are displayed in the Clip Monitor widget. It is recommended to move the Screen Grab widget to a position where the clip monitor is easily visible. For example, the Screen Grab widget can be added to the dock where the Project Bin or the Library is. Docking it to the Clip Monitor widget prevents a message from being visible.

The Screen Grab widget

Monitor 0/1:

Select the monitor to record from

media-recordScreen Grab:

Start/Stop recording

configureConfigure Recording:

Opent het venster van Kdenlive Instellingen ‣ Opnemen ‣ Scherm opnemen

De opgenomen clip zal in de project-bin worden toegevoegd.

Possible issues

Screen grab uses ffmpeg for recording and encoding. Most issues have to do with the version of ffmpeg installed or how ffmpeg was compiled.

Specifically, ffmpeg needs --enable-x11grab to work for screen grab. Check your Linux distro for this parameter for ffmpeg by typing ffmpeg -version in a terminal and look for that parameter in the information reported back by ffmpeg. [1]

If you are capturing the screen and using the x246 with audio setting, the recording may crash. In this case create an Encoding Profile for Screen Capture where -acodec pcm_s16le is replaced by -acodec libvorbis -b 320k.

Blackmagic

This is for capturing from Blackmagic’s Decklink video capture cards.

Notitie

There has been no major development or testing with this part of Kdenlive. It may work, it may have issues. No bug reports have been created, but there is not knowing how many users actually perform video capturing with this hardware.