Archive:Kdenlive/Manual/Projects and Files/Clips: Difference between revisions

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Proxy clips are one of the most useful invention for editing if you are not working on a ultra high-end machine. The trick is that the original clips are replaced by clips with lower resolution clips with a less complex codec. Video decoding, e.g. of H.264 clips, requires a lot of computing power, but computing power is required for rendering effects in real-time. If it is not available, replay will ''stutter''. Proxy clips will require nearly no computing power at all, which allows fluent replay.
Proxy clips are one of the most useful invention for editing if you are not working on a ultra high-end machine. The trick is that the original clips are replaced by clips with lower resolution clips with a less complex codec. Video decoding, e.g. of H.264 clips, requires a lot of computing power, but computing power is required for rendering effects in real-time. If it is not available, replay will ''stutter''. Proxy clips will require nearly no computing power at all, which allows fluent replay.


Proxy clips need to be enabled for a project in the Project Settings (<menuchoice>Project -> Project Settings</menuchoice>).  
Proxy clips can be enabled / disabled for the current project in the Project Settings (<menuchoice>Project -> Project Settings</menuchoice>).
 
To enable proxy clips by default for new projects, go to <menuchoice>Settings -> Configure Kdenlive -> Project Defaults -> Enable Proxy Clips</menuchoice>.


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Revision as of 18:52, 10 June 2011

Information

  • How to add clips from the file system
  • Clips properties (right-click): What do they mean, what effects do changes have there?
  • Additional clip types: Colour clips, Title clips, Slideshow clips, Stop Motion. How to add them?
  • What does transcoding clips do, when is it used? (Damaged .ogv files e.g.)
  • Project Tree widget: How to structure clips (folders)


Proxy clips

Activating proxy clips

Proxy clips are one of the most useful invention for editing if you are not working on a ultra high-end machine. The trick is that the original clips are replaced by clips with lower resolution clips with a less complex codec. Video decoding, e.g. of H.264 clips, requires a lot of computing power, but computing power is required for rendering effects in real-time. If it is not available, replay will stutter. Proxy clips will require nearly no computing power at all, which allows fluent replay.

Proxy clips can be enabled / disabled for the current project in the Project Settings (Project -> Project Settings).

To enable proxy clips by default for new projects, go to Settings -> Configure Kdenlive -> Project Defaults -> Enable Proxy Clips.


As soon as proxy clips are enabled, they can be generated for specific project clips in the Project Tree widget via the context menu Proxy Clip. Clicking it again disables the proxy for this clip.

When rendering to the output file, you can chose whether to use the proxy clips as well. It is by default disabled, but for a quick rendering preview it is useful.