1 Topic by Winkelmandje (edited by Winkelmandje 2011-05-08 21:03:32)

  • Winkelmandje
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Hi,

I'm using Kinovea for at least one year now and I'm really fond of it. So I would like to say to the developer(s), you're doing an excellent job!

But I'm also encountering two problems.

This first one encounters when I'm trying to synchronizing two different videos.
The problem is that I'm filming from two different views (front and side) with two different camera's filming at a different frame rate.

What I'm trying to accomplish is that a video captured at 120fps is synchronized with another video captured at 30 fps. I don't know if this is even possible, but i thought, that when I'm able to set different playback speeds for each video that this would give the desired result, which now, isn't possible as far is a know.

When I'm using Kinovea at this moment, i just enter the frame rate of the two videos but it won't give the result that I'm searching for. It "only" shows the real time speed (in %).

Another problem I'm facing is opening video files from Windows Explorer to Kinovea. When Kinovea is not running and I'm using right mouse click on a file and selecting "open with" > Kinovea, this works just fine. But when Kinovea is running this option doesn't seem to work. I only see a loading icon for a few seconds and then nothing happens, Kinovea doesn't open the file.
Maybe it's a bit of a stupid request because Kinovea has a great File explorer, but I'm just more used to work with Windows file explorer.

I'm using Kinovea version 8.7 and 8.14 with Windows Vista Ultimate 32bit.


Hopefully someone can help me.

Regards,
Sven

2 Reply by joan (edited by joan 2011-05-08 22:06:00)

  • joan
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Hi,
Thanks for raising these points.

Winkelmandje wrote:

What I'm trying to accomplish is that a video captured at 120fps is synchronized with another video captured at 30 fps.

Hmm, so you have one video in slow motion and the other in regular speed, right ?
Synching videos with different playback frame rate is supported and should be transparent, but I guess your 120fps video is actually played back at 30fps as well.

I wanted to ask you to set the speed sliders at the same value (20% for both for example) but they have been locked together for ease of use in the most common scenario !
(Maybe a future enhancement to think about. Something like ALT + speed change could be specific to the screen it's applied to and not to both screens).

Nevertheless, I will open a bug for this, and think about possible ways to fix this internally. It will most certainly not make it to the next release though (only few days away, and risky change).
Maybe the "normal speed" video should be locked to the slow motion factor corresponding to the other…

Winkelmandje wrote:

When Kinovea is not running and I'm using right mouse click on a file and selecting "open with" > Kinovea, this works just fine.
But when Kinovea is running this option doesn't seem to work. I only see a loading icon for a few seconds and then nothing happens, Kinovea doesn't open the file.

Yes, I have noted this a few days ago. Explorer is probably trying to launch a second instance of Kinovea, which then detects that it is already running and aborts.

edit:
bug 245 - Synchronisation between a high speed clip and a normal one cannot be done
bug 246 - Windows Explorer "Open with" doesn't work if Kinovea is already open