Gotomeeting video edit producing large files

mayerg11

Newbie Joined: Mar 18, 2016 16:50 Messages: 10 Offline

Solved by

Mar 20, 2016 20:14

I have to edit a Gotomeeting recording that is basically screen capture and uses 136Kbps and 5 fps with 1920x1080 resolution. I'd like to produce an mp4 but the lowest it can go is 3000Kbps and 26fps so the files wind up being about 10x larger.

I tried modifying the profile.ini to match the gotomeeting specs as reported by mediainfo but the results were very blurry.

Is there a way to get decent results of very simple screen capture video using smaller bit rate and frame rate?

Thanks in advance.

Greg

This message was edited 1 time. Last update was at Mar 20. 2016 20:34

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Mar 21, 2016 05:16

Hi mayerg11,
The Gotomeeting video bitrate looks dire. Any chance you can upload a short clip for members to test out/analyze please?
Dafydd

mayerg11

Newbie Joined: Mar 18, 2016 16:50 Messages: 10 Offline

Mar 21, 2016 12:32

Hi Dafydd,

Sure thing. The entire video was basically screen sharing of some software he was demoing so most of it didn't change a whole lot, just the things he was clicking. I'm trying to remove about 20 minutes of it.

<video controls="controls" width="300" height="150">
<source src="C:\GoToMeetingExample.mp4" type="video/mp4" />
</video>

Thank you

This message was edited 1 time. Last update was at Mar 21. 2016 12:36

mayerg11

Newbie Joined: Mar 18, 2016 16:50 Messages: 10 Offline

Mar 21, 2016 12:32

hmm...well that didn't work...I'm not seeing how to upload the clip.

mayerg11

Newbie Joined: Mar 18, 2016 16:50 Messages: 10 Offline

Mar 21, 2016 12:36

oops. Maybe i'm supposed to use that big giant attachments button...

Filename	GoToMeetingExample.mp4	Download
Description	Example of GoToMeeting clip
Filesize	536 Kbytes
Downloaded:	228 time(s)

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Mar 21, 2016 13:02

I had a quick play and altered the audio without testing. You might like to adjust the video bitrate some more and see what you come up with.

This message was edited 1 time. Last update was at Mar 21. 2016 13:03

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Mar 21, 2016 13:07

I adjusted the video bitrate to 300kbps which is really low. as the original is only 5fps and pretty static you might be ok. I couldn't get SVRT to accept it as a) it wasn't close to the original b) Intelligent SVRT didn't want to create a custom profile.

Copy and paste the text into the Profile.ini. Keep on experimenting. The current setting for video bitrate is 30000 = 300kbps.

Dafydd

mayerg11

Newbie Joined: Mar 18, 2016 16:50 Messages: 10 Offline

Mar 21, 2016 14:28

Here is a sample of what it looks like after changes. It's good that we're down to about 3x the size. I tried changing deblock from 0 to 1. Maybe i'll try changing the samples per frame to a higher value.

Any idea why every 5-6 seconds it blurs out everthing and sort of refocuses?

Filename	Produce_2.mp4	Download
Description
Filesize	1646 Kbytes
Downloaded:	246 time(s)

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Mar 22, 2016 05:25

Hi,

I have attached a sample video. The only difference to the profile I provided and the one used to create the attached video is the audio was set to 128 ( can be changed using a text editor).

I did not have any of the blurring your sample has, please check out the attached mp4.

I did NOT select Hardware video encoder and used the cpu processing capability to render the video. Do you have something running in the background during the rendering process? I think it also could be related to computer spec/set up. Just guessing.

Dafydd

Filename	Mayerg.mp4	Download
Description	Mayreg
Filesize	1627 Kbytes
Downloaded:	268 time(s)

mayerg11

Newbie Joined: Mar 18, 2016 16:50 Messages: 10 Offline

Mar 22, 2016 20:33

We've gotten it working within acceptable ranges.

Blur - I tried launching cyberlink > right click > run with high performance nvidia and the blurs went away. Now, however, I am unable to bring them back...Whether I enable/disable hardware encoding, use nvidia reg/high perf...very strange. Must have been something running on the machine at the time.

Thanks very much for the help, Dafydd!