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Could not find or correctly load the video compression library.

Posted: 10 Feb 2018, 14:07
by drmajr
I recently downloaded V-REP 3.5.0 rev1 and encountered this error:

"Could not find or correctly load the video compression library."

that pops up in a dialog box when V-REP is starting. I'm on a mac with High Sierra. I also have the 3.4.0 version of V-REP and the video recorder works just fine.

Any help would be welcome.

Thanks,
-M.

Re: Could not find or correctly load the video compression library.

Posted: 12 Feb 2018, 07:43
by coppelia
Hello,

yes, we are aware of that problem on MacOS: we broke something. In the mean time, you could try to have a look at the original source code for that video compression library here.
It however requires adaptation for the newest ffmpeg library.

Cheers

Re: Could not find or correctly load the video compression library.

Posted: 13 Feb 2018, 10:46
by lpitonakova
Hi, is there an estimate of when this can be fixed a new version of V-REP for Mac released?

Re: Could not find or correctly load the video compression library.

Posted: 07 Mar 2018, 16:04
by PabloM10
Hi,

I have the same problem. I have updated mi mac to High Sierra and I have updated VREP to the last version also.

Furthermore, I think that that is make me a problem when I run the simulation, because I have opened one scene which worked perfectly with the previous version of VREP and now, with V-REP 3.5.0 rev1, when I start the simulation, the robot doesn't work properly.

What can I do to solve this issue?

Thanks in advance.

Re: Could not find or correctly load the video compression library.

Posted: 07 Mar 2018, 16:21
by coppelia
Hello,

the video compression library is a known bug on Mac. We are working on its resolution.
As to your other problem: what is the different behaviour? Are there any error messages? Are you using an external application to communicate with V-REP?

Cheers

Re: Could not find or correctly load the video compression library.

Posted: 07 Mar 2018, 19:06
by PabloM10
coppelia wrote:
07 Mar 2018, 16:21
Hello,

the video compression library is a known bug on Mac. We are working on its resolution.
As to your other problem: what is the different behaviour? Are there any error messages? Are you using an external application to communicate with V-REP?

Cheers
Hi,

The scene consist in a "robotic arm" with a BaxterVacuumCup attached at the end (I have remplaced the random shape by a group of custom random shapes). The issue is a vibration when the cup comes in contact with the ground. I tried with the scene without any modification and I realized that whether I ungroup the custom random shapes and group them again, the simulation becomes irregular, presenting the described problem. So I think the problem is originated by the new version.

Where I can download the previous version to try if that is the problem really?

Answering the questions: there isn't any error messages when I start the simulation and I am not using an external aplication.

Thanks.

Re: Could not find or correctly load the video compression library.

Posted: 08 Mar 2018, 08:39
by coppelia
You can find previous versions here.

Have also a look at this page,
design considerations 1 - 3.

Cheers