3 ms·
>who would be better off encoding things in SD with the low bitrates they use DCT quantization always beats down-scaling at the same bit rate.
by mistercow 13y ago
>who would be better off encoding things in SD with the low bitrates they use
DCT quantization always beats down-scaling at the same bit rate.
- Daiz 13y agoLook at the image I linked and say that again. And it's not like this is particularly hard to test on your own. If you encode the same video at low enough bitrate X in 480p/720p/1080p, the higher resolution versions can have more definition at times but the 480p version will generally end up having the highest overall quality and is usually the most consistent in its quality as well. I've done this kind of comparing a couple times myself and the results are exactly that.
- mistercow 13y agoComparing still frames from VBR video streams is spurious on multiple levels.
- aidenn0 13y agoOnly if you have a really crummy upscaler on playback; with a good upscaler, DCT starts losing at moderate bitrates and starts to get terrible at low bitrates.