How to Preview Export output size

[rirussshotcut]

How to Preview Export output size, is there any ways to see what would the size be of an export combination before processing the video file?

[Hudson555x]

There are two ways.

Click on Master, then Properties.

Export, Advanced, Video tab.

[sauron]

AFAIK there is no way to preview the final file size of an export.
It depends on the number and type of filters used.
Also the preset that is used makes a big difference.

Check this thread for an approximate preview of what kind of file size to expect.

Shotcut exported file size reference (unofficial)

There’s been much posted about exporting and file sizes. This is just an unofficial reference for users who wish to check out the various file sizes that will result when exporting with Shotcut presets. The video clip used for the export is 10 seconds with a file size of 2.9 MB. No filters were applied. All the presets were used with default parameters. I did an export test a while ago. The results are here. Shotcut Export test All the files from the exports are here https://mega.nz/#F!Z…

I have not maintained this thread. Many of the export presets have been modified with each new version of Shotcut.

[rirussshotcut]

Thanks so much guys for the response for pointing this up to me, however we were looking to the Size since it is important for sending on email or posting on line.

It is a great program (Shotcut) I’m just learning how to navigate through it.

Thanks

[Austin]

If file size is important, then a relatively predictable encoding method is to use Average Bitrate and calculate what is needed to fit the file size limitation. For instance, e-mail probably has a 20 or 25 MB limit. The average bitrate can be calculated to create a file that size given the duration of the video. The following thread gives a demonstration of the math. Meanwhile, estimating the file size in quality mode (CRF/QP) has no predictability at all.

Can someone please assist with High Quality settings and low file sizes upon export?

Since file size is more important than quality in this scenario, math can provide the answer. The edited video is 1h 30m 40s in duration, which is 5,440 seconds. The max desired file size is 3 GB, which is 3 GB * 1000 MB * 1000 KB * 1000 B * 8 bits = 24,000,000,000 bits. Divide bits by seconds to get data rate: 24,000,000,000 / 5,440 = 4,411,764 bits per second. Divide that by 1,000,000 to get megabits per second, and round a little for convenience. Total bit rate = 4.4Mbps Audio bit rate…