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TOPIC: [Workaround] Canon Eos Judder in Lightworks

[Workaround] Canon Eos Judder in Lightworks 8 years, 1 month ago #43810

  • spid
Hello

I am using Lightworks for a few hours and it is really great and easy to use for beginners.

But I have a problem with Judder

I shot in 1080p30 and convert with the EyeFrame Converter.
The Videos direct and the converted files run smooth in the VLC Player.

But in Lightworks I get judder every about 0.5s. You can see it in the preview Window and at the exported files too.

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Maybe it is a problem with the frame rate, but I selected everywhere 29.97fps
Last Edit: 8 years ago by .

Re: Canon Eos Judder in Lightworks 8 years ago #43833

  • spid
I made an example

First one:
Eos File converted with EyeFrame to Matrox I-Frame HD -> Converted with Eye Frame to h.264

www.dropbox.com/s/w4ycz845tjoq64u/MVI_0187.mp4

Second one:
Eos File converted with EyeFrame to Matrox I-Frame HD -> Opened in Lightworks -> Export in Mpeg422@HL -> Converted with Eye Frame to h.264

www.dropbox.com/s/2stgrouxs1wqfjx/edit%20%231%283%29.mp4

Re: Canon Eos Judder in Lightworks 8 years ago #43834

  • tin2tin
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Try exporting from LW in YuYv AVI, and then convert with EFC.
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Re: Canon Eos Judder in Lightworks 8 years ago #43836

  • spid

Re: Canon Eos Judder in Lightworks 8 years ago #43838

  • tin2tin
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I don't know what is causing this, but just a fyi, in Efc the rate can be changed by seleting all the clip ypu want to change the rate of, and then right click in rate coloum of the first clip. This might be useful if you want to change 29.97 to 30 before opening the clip into a 30 fps Lw project.
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Re: Canon Eos Judder in Lightworks 8 years ago #43839

  • RWAV
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Not positive that it is - but it does look a bit like a frame rate adjustment - is your source clip and LW project set to the same frame rate?
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Re: Canon Eos Judder in Lightworks 8 years ago #43842

  • ABCRONNIE
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Hi spid

I tried your clips in Lightworks 11.1G 64 bit and the results were the same as you reported.

I tried the following project settings

24fps
29.97fps
30fps

FYI The format of your Lightworks export is 1920x1080 @ 29.97fps
The format of the Eyeframe conversion is 1920x1088 @ 29.97fps (non standard Canon EOS format)

I was also able to play both files in VLC 2.16 and they played smoothly.
I also imported your files into AVID Symphony and they played smoothly.
I also imported them into Edius Pro and they also played smoothly.

Cheers

Ronnie
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Last Edit: 8 years ago by ABCRONNIE.

Re: Canon Eos Judder in Lightworks 8 years ago #43849

  • spid
RWAV wrote:
Not positive that it is - but it does look a bit like a frame rate adjustment - is your source clip and LW project set to the same frame rate?

Please have a look at the first Post
I have marked there where I set the frame rate to 29.97fps.




And I want to say thx for your great help here.

Re: Canon Eos Judder in Lightworks 8 years ago #43867

  • spid
Maybe someone want to have a look at the out of cam file
www.dropbox.com/s/j6gut6rftsrt477/MVI_0187.MOV


I couldn't solve the Problem till now.

Re: Canon Eos Judder in Lightworks 8 years ago #43873

  • khaver
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spid, In EFC did you use the "Matrox I-Frame HD - Proxy Quarter Size - Lightworks Free - Source CanonEOS" preset? This preset is specifically to crop off the 8 lines your camera adds so you'll have 1920 x 1080 video.

Also, make sure your project is set up as "1920 x 1080p(sf)", not "1920 x 1080i".
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Last Edit: 8 years ago by khaver.

Re: Canon Eos Judder in Lightworks 8 years ago #43875

  • spid
I tried the CanonEos preset, but the problem is still present.

1080p(sf) is selected

Re: Canon Eos Judder in Lightworks 8 years ago #43914

I have the same problem, 29.97 fps files from my Canon EOS 550d do not play smoothly in Lightworks. 25 fps work fine but not 29.97

It makes no difference if I use the built in transcoding to MPEG I-Frame or ffmbc. The original files play fine in VLC, the ffmbc transcoded ones play smoothly in ffplay. I also tried to transcode a file by loading it into Sony Vegas, then rendering to MPEG I-Frame. It's all the same.

When I step through the files in Lightworks frame by frame, it looks like every 5th frame was a copy of the fourth.

I tried to import the original MOV file with "create link" into Lightworks. When playing the file the problem is somewhat hidden by h.264 performance problems, but when I step frame by frame I see exactly the same behaviour: 4 frames, then one overwritten by the previous one.

Did no one run into this problem before?

PS: here a ffmbc command line which solves the 1080/1088 lines problem on EOS files

ffmbc -y -i %1 -vf crop=1920:1080 -vcodec mpeg2video -qscale 1 -qmin 1 -intra -acodec pcm_s16le -vtag M701 %2

Re: Canon Eos Judder in Lightworks 8 years ago #43917

  • tin2tin
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Sounds like you guys should report this as a bug, and send the LW devs the 29.97 fps file.
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Re: Canon Eos Judder in Lightworks 8 years ago #43922

  • khaver
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If you drag one of the files from explorer into Lightworks, the batch import panel will come up. In the column list of info is a setting for "Transfer". Set this to the other setting than what's shown and click Start to import the file. This should fix the duplicate frame problem.
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Re: Canon Eos Judder in Lightworks 8 years ago #43927

Thank you khaver,

that hint solved the problem for me.

If I import the files through the batch import panel and select "straight" in the column Transfer, the files play smoothly in Lightworks. It's the opposite to my 25p files, they require "no transfer" in order to play correctly.
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