Export issue - using H.264/AAC Mp4 file

[sadfay2020]

Hi there! First of all, I love Shotcut! It’s an amazing piece of software for absolutely free! I’ve been using it for a few months now.

I started a music project this year, so I have been making short videos every day, usually it’s just a simple screen record video (using Quicktime), then adding music to this, then exporting.

I always use these settings when I export:
default Quicktime Animation, H.264/AAC Mp4 file
1920 x 1080
16 : 9
30 fps

I don’t know what a lot of that means, so I never change any of it.

Today I exported a 2m 30 seconds video, a screen record with audio. They’re usually about 50 - 100MB max, but today’s video exported and was 10GB.

Clearly some sort of glitch or something, but I didn’t know what to do, so I deleted it and tried again.
Any idea what’s going on here?

The only other issue: Sometimes when I am exporting a video, the Jobs read out, gets to 100%, then says “FAILED” and I get a pop on my Mac that says something about Qtime process failed and I have to restart the process. When it restarts it usually exports fine the second time. Is there anyway I can prevent this?

Oh! I get random crashes from the app, sometimes, when I move clips around in the timeline. Or if I do too much keyframe editing. Any solution for this?

Anyway, these are all just small gripes. It’s a great app and I get a lot of usage out of it! Thanks again!

I’m using a mid-2010 27" iMac with High Sierra (10.13.6)

[sadfay2020]

You can see here, the file is 10.12GB, which is kinda ridiculous, it’s normally less than 100MB.

[Austin]

Based on the contents of that screen capture, I would expect a 10 GB size, not 100 MB.

Did you make a custom export preset, or are you using a preset that came with Shotcut? If using a built-in preset, what is the full exact name of it?

[shotcut]

This is not a bug. This is a user error doing things in Export > Advanced but not being advanced. A Quicktime Animation cannot also be a H.264/AAC MP4 file. They are different. Yes, Quicktime Animation is going to make a big file. Try this: restart Shotcut, reopen the project, and do not click anything in Export except Export File.

[Elusien]

I second that. You obviously clicked on the “Quicktime Animation” format under the Presets options. The GOP=1, B-Frames=0 will produce a huge file since there is absolutely no temporal compression being done between frames.

[sadfay2020]

Yes! I think I must’ve accidentally clicked the QuickTime Animation from the menu, normally I only ever use the default export settings.

The restart sorted it!

Thanks everyone!

Any ideas about the other bugs / crashes? I can live with it, but wondering if there’s a solution.

[Kistent_Tse]

Try to update the dirver or reintall the software? By the way, I have installed many screen recorder on my computer, it seems one of those called recmaster also records at a relatively smaller size in high quality. But there are only three quality options.