Not sure I understand this!

collie581

Member Location: Aberdeen Scotland Joined: Oct 21, 2015 11:43 Messages: 92 Offline

Solved by

Aug 17, 2018 05:57

Good Morning All

I recently bought a second video camera a Panasonic HC- VXF1. It is much smaller than my main camera and does a lot of things just as well. One of the things that is easy to do is slow motion and I have been experimenting with that. The files I was getting using slowmo were large and contained a lot of rubbish so I thought I would edit out the best bits and produce each as a new clip and delete the original.

My time line environment was set to 25p and the clips ran fine on the timeline. However when I produced at 25p the first three quarters of the clip rendered fine but the last quarter was the same frame over and over - like a freeze frame effect. Examining the original clip I see that that one is 50p progressive. So I rendered at 50p and all was well. Now I thought what is going to happen if I combine 2 clips (I usually film at 25fps) one at 25 and the slowmo one at 50. Is there going to be a problem when I produce at 25fps? I tried it and no problems the combined clip ran perfectly!

I am not complaining - just saying I don't understand it. Why does a single 50fps slowmo clip rendered at 25fps have problems but when combined with a 25fps clip there are no problems.

Sorry if my post is bit convoluted.

Regards

Nigel

StevenG

Contributor Joined: Jan 14, 2014 14:04 Messages: 513 Offline

Aug 17, 2018 08:05

Whether your camcorder is shootingin slow motion or not isn't really a factor. What matters is the specs of the video it outputs.

Open one of the videos from your camcorder in the free download MediaInfo. In MediaInfo, set View to Text and then copy and paste the report it generates to this forum.

Once we know the specs of your source footage we'll better be able to offer advise.

collie581

Member Location: Aberdeen Scotland Joined: Oct 21, 2015 11:43 Messages: 92 Offline

Aug 17, 2018 08:55

Quote Whether your camcorder is shootingin slow motion or not isn't really a factor. What matters is the specs of the video it outputs.

Open one of the videos from your camcorder in the free download MediaInfo. In MediaInfo, set View to Text and then copy and paste the report it generates to this forum.

Once we know the specs of your source footage we'll better be able to offer advise.

Steven

I attach a text file as you suggested. This is the one that I was extracting a clip from.

Regards

Nigel

Filename	Video Data.txt	Download
Description
Filesize	3 Kbytes
Downloaded:	187 time(s)

StevenG

Contributor Joined: Jan 14, 2014 14:04 Messages: 513 Offline

Aug 17, 2018 09:40

The MP42 is an unusual codec. A Google search shows that a number of people have had trouble working with it.

You can try running the video through Handbrake, a file converter that will turn it into a more traditional MP4.

But that's the only thing I see that's unusual in the video's specs. So I'm not sure what else to recommend.

collie581

Member Location: Aberdeen Scotland Joined: Oct 21, 2015 11:43 Messages: 92 Offline

Aug 17, 2018 09:48

Steven

Thanks for that. It seems to be Ok if I first produce it at 50p and then use the produced version. In most occasions I would be extracting a slowmo section anyway. Presumably the clip produced by PD is of a more normal flavour and as a result does the same job as Handbrake.

Regards

Nigel