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TOPIC: Best codec to use with the free version

Best codec to use with the free version 6 years, 10 months ago #23721

  • khaver
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I've been trying out the new free version for only a few days now, but so far the best codec to use for editing for me has been the free GoPro Cineform codec that gets installed when you install the free GoPro Cineform Studio application. So you will need to transcode your footage outside of Lightworks (my codec swapping utility does not work with the new version). For lossless transcodes you can use the UT Codec Suite or Lagarith.

From the tests I've done it seems that any codec that Lightworks imports through it's Mainconcept plugin system is having performance problems. Even Matrox MPEG2 I-Frame HD that used to work flawlessly in the beta has problems (stuttering, freezing when stepping) now that it's being decoded by the Mainconcept plugin. Devs, please look into this.
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Re: Best codec to use with the free version 6 years, 10 months ago #23759

  • Craig Marshall
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Have just installed LW11 over my LW beta and the new version works flawlessly (including my Shuttle Pro V20 setup!) I used the free 'DSLR Post Prep' to transcode my camera's AVCHD .MTS files to the M701 codec which was optimised for LW beta. I'm pleased to report this codec also works very smoothly in LW11, even on my low spec Windows 7 i3 laptop!

PS: DSLR Post prep also allows transcoding to DNxHD codec (license required for LW11)
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Re: Best codec to use with the free version 6 years, 10 months ago #23835

  • khaver
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I'll have to look into this more. I have some directshow filters (halii splitter, lav filters, etc.) that might be interfering with the Mainconcept plugin system Lightworks now uses.
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Re: Best codec to use with the free version 6 years ago #42316

  • funkydmunky
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With the Go Pro Cineform Studio I get erratic fps readings. When I import a clip it can say anything from .23 fps to a wopping 960.00 fps!! I tried this app before I read your post and was going to dismiss it. The result is it will render the video into mega fast or slow, with split second to endless render times to match.
Any advice?

Re: Best codec to use with the free version 6 years ago #42517

  • funkydmunky
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Can anyone help with this?
Is Cineform Studio an acceptable codec conversion solution?
Tips, tricks, help please.

Re: Best codec to use with the free version 6 years ago #42518

  • khaver
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Cineform Studio's main use is for GoPro Hero video files. Other sources aren't guaranteed to work. What's the source of your variable frame rate clips? To edit your video you will most likely need to convert your clips to a constant frame rate. I don't think any NLE can work with VFR video files.
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Re: Best codec to use with the free version 6 years ago #42521

Once the Cineform codec is on your system, you can use Virtualdub to convert to Cineform. See this post.

I recall having audio problems when trying to convert using Cineform Studio.
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Last Edit: 6 years ago by shaunthesheep.

Re: Best codec to use with the free version 6 years ago #42578

  • funkydmunky
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Hey thanks for the reply.
In a rush to evaluate Lightworks I was just grabbing a bunch of small clips off my drive. I never heard of VFR before. My bad. I should have used some cam clips which i will now do.
Thanks again.

Re: Best codec to use with the free version 6 years ago #42580

  • khaver
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There are some codecs that allow variable frame rate to save on playback/streaming bandwidth, but these are strictly for watching not editing. It is possible to convert these types of videos to constant frame rate. I believe Avisynth can do it by duplicating or skipping frames as needed.
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