Quote:
Originally Posted by LigH
Then I used the wrong term; let's call it "GOP pumping" instead. DVD GOPs usually have a duration of half a second. And some MPEG-2 (hardware?) encoders prefer the I frame over all the following P and B frames with finer quantization. This effect was quite similar to your Golden Frame issue.
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Ah, gotcha. Indeed, it's very similar, especially in VP9 (mzso, watch something hard to compress on youtube, like fast moving gameplay footage, or something with a lot of foliage, you'll see). It's much more subtle in AV1, but still noticeable in some cases.