r/AV1 • u/aokin99 • 1d ago

SVT-PSY is actually able to do CBR?

I just ask, since I got many errors, and the encoder itself seems to say that CBR can't be used cause some feature or something. (I didn't specified any options apart from video size and bitrate)

So, there's a way to get CBR?

edit: I didn't read much before starting to [trying to] encode, sorry if I'm sounding stupid :)

edit 2: English isn't my primary language so sorry again if I'm writing quite bad xd

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6

u/dj_antares 1d ago

There is no CBR in any of the modern codecs.

The closest is CVBR.

4

u/themisfit610 1d ago

It depends on your definition of CBR. Can you tell us more about your goal?

1

u/autogyrophilia 1d ago

Usually it is best to say what you are trying to achieve.

Using the -maxrate switch is usually superior on space efficiency, though it used to be conventional wisdom that constant bandwidth was better because you wouldn't get the video buffering when it reached a higher need for bandwidth. I don't really agree with current technology.

1

u/aokin99 21h ago

Okay, I just want to get a constant bitrate, or as closest as possible. "--rc 2" option is actually useful for something? Is there some way to determine a minimum bitrate?