addressed Export image sequence framerate

[kzsoltkzsolt]

Dear Anybody!

I try to use export image sequence function on videopad.

The problem is no matter what I set, the export always uses 30fps.

This means the output makes 30 picture files on every second of a sequence, but I need only 1.

My question: How I change export frame rate for image sequence export?

Thanks for any advice: kzsoltkzsolt

[borate]

There's no option to capture a frame per second.  Submit a suggestion... https://www.nch.com.au/suggestions/index.html?software=VideoPad

You might take snapshots - of either the clip or sequence.  They are saved by default to your Pictures folder.

Right-click in the PV window... 

[kzsoltkzsolt]

The problem is for example the sequence is 10 min long. Then I need 60*10=600 picture (file) from.

To make 600 snapshot in manual way (by individual clicks) is not too effective.

The export image sequence now create 60*10*30=18000 file on a disk.

There is no any way to overwrite fps value for export image sequence for example in paramter file?

[borate]

https://superuser.com/questions/135117/how-to-extract-one-frame-of-a-video-every-n-seconds-to-an-image

https://www.raymond.cc/blog/extract-video-frames-to-images-using-vlc-media-player/

To create a video at 1fps, choose custom in the export box and specify that rate.

[kzsoltkzsolt]

Already tried on VideoPad.

This is works just for video file export, but not works for image sequence export.

The image sequence export has no custom export option.

Looks like ffmpeg is a solution 🤧

[Nationalsolo]

HI

OK. Try this...

• Load the raw 10 minute  sequence to VP.
• 10 min = 10 x 60 x 30 images at 30 images per second = 18000 images.
• You need to reduce this to 10 x 60 = 600 images to get  1 frame per second
• This means reducing the duration of your clip to 10 seconds (600 images) ....by increasing the speed.
• Right click the timeline and select Change Clip Speed.
• Left click the Duration value shown and enter 10 followed by Set. The clip will reduce to 10 seconds in duration.
• Ignore the sound change warning......You are after images.
• The Speed percentage will now be around 6000 depending on the exact duration of the raw clip.
• The clip will short and fast
• Export  the timeline as an mp4 at Constant 30 images per second.
• Reload the freshly exported 10 second mp4 back  into VP. 
• Finally Export this mp4  as an Image Sequence.
• The destination folder should now contain your  images taken at 1 second intervals throughout your original raw clip.
• (You may need to check my math......... )

Nat

[kzsoltkzsolt]

Your math is correct. But the result of export is: freeze at pos 0 (0 len out file).

But what a insparation, I try an other one. Simply export the 10 min sequence with 1fps constant speed to temp file. And then image sequnece the temp file. It is take a long time. But when finished I inform you about the result.

Other side the ffmpeg solution is working fine now. But this above can be an more simple alternative (because ffmpeg option challenge).

 

[kzsoltkzsolt]

😃 Looks like this way is works fine (conv to 1fps mp4 and then image sequence).

The two phase are relativ quick. And the result is better than ffmpeg.

The reason is: looks like videopad handle interlacing better than ffmpeg. Or maybe I not enogh good in ffmepg option challenge.