No matter if i export at the same resolutión and bitrate, videos get pixelated

[Guest]

No matter if i export at the same resolution and bitrate, videos get pixelated.

Mod note: Title was changed to reflect your issue. Please do that from here forward. It would help the community much more. Please also avoid attacking fellow human beings here. I removed some of your commentary.

[Mike Dziennik]

There are a very large number of people succesfully exporting high quality videos from Premiere every day. If you are having issues with the quality of your exports, please explain the settings you are currently using: the format of your media, the sequence settings and your export settings.

[Guest]

[PaulMurphy]

You’ve got two different bitrate settings in these screenshots. 1.3 Mbps is too low for 720p if quality is important. The 10 Mbps should yield good results though, depending on your source files. Can you tell us more about those? Frame size, codec, etc.

It’s also worth mentioning that 720p is quite a small frame size these days and will reduce image quality if it’s scaled up on larger monitors and screens.

[Guest]

But it's the same bitrate as the original video and it's not pixelated

[R Neil Haugen]

You may not understand the massive compression issues involved.

As the block compression methods used in this format requires close RGB numbers in adjacent frames be reduced to a single set of numbers.

Therefore creating macro-blocking and banding.

An intraframe codec like ProRes does not do this. But makes for a much larger file size on disc.

[Guest]

If I keep that 10 Mbps, video data size will be multiplied and it should not because the video was cut and duration is shorter

[R Neil Haugen]

Your comments have nothing to do with the "physical process" of that compression method.

That compression method, the entire basis of compressing image data so heavily, is based on eliminating "minor differences" to save space/filesize.

It intentionally reduces details. Period.

And you started with a file that probably was already eliminating a lot of data, but still just above being obvious.

Now, you re-encode with a process that compresses by eliminating small differences  ... again.

And this time, it's notable. Well, gee ... go figure.

And yeah, it's a pain. But multiple generations of long-GOP format show problems quickly.

[Guest]

Again: the original video (I mean, saved locally in my disk) has that same resolution and that same bitrate AND IT'S NOT PIXELATED, it got pixelated when it's exported from Premiere Pro AT THAT SAME RESOLUTION AND BITRATE ONLY, learn to read and don't try my patience!!!

[R Neil Haugen]

You still don't get it. Ah well.

Those are not your original pixels, period. They are what is created with a completely new encoding of data from the sequence, with the compression settings applied.

This is why mutli-generational encoding is so carefully thought out in professional workflows.

For example, a ProRes 422 10 bit file can typically go through 5-7 generations before stacking an export over the original, and setting Blending mode to Difference, will show differences.

But a low bitrate mp4/H.264 will show differences in as early as the first generation.

That's been demonstrated many times. And again, is a major consideration in all professional workflow testing precisely to avoid the problem you ran into.