Adjusting the weights is how training works.

If you are thinking about adjusting the number of weights, that’s also a technique. The issue is that (afaik) it can only be trained through genetic algorithms, which take longer than backpropagation.

(This information might be incomplete/incorrect.)

I think the idea is that the cost of producing standardized hardware is lower than the cost of producing a custom version without that codec just for the Raspberry Pi Foundation. The Raspberry Pi Foundation was not interested in that codec, so they didn’t buy a license. Separately, as a special agreement, they then allowed the few interested users to get a personal license directly from the IP owner. Sounds like a great solution to me.

Not sure if the same reasoning applies to BMW, though.

I just shared my opinion. I didn’t need those keys because I was not interested in using their proprietary codecs.

For what it matters, if Broadcom decided to license the IP for some hardware accelerator I don’t have anything against it. As long as they don’t make me pay for it when I don’t need it.

Dedicating a small portion of the silicon to optional features is cheaper than designing two separate silicons one with and one without such features.

This was actually probably an efuse, so not really just firmware, but hardware. In any case we are not talking about a software/firmware feature to decode videos, we are talking a section in the silicon that stays dormant unless you activate it with a valid license key.

Imho it makes sense from an economical perspective: they develop, test and fabricate a single silicon that does everything, then they allow you to specialize it on demand for a fee.

In any case, we can agree to disagree.

I have to partially disagree on this point. Take the first generation of Raspberry Pi as an example.

The first Raspberry Pis came with hardware to decode certain video codecs, but this feature was protected by royalties (not by the Raspberry Pi foundation, but a third-party I don’t remember the name of). They decided to sell you the base hardware for cheap, and if you wanted to enable hardware decoding you could later purchase a license key for your specific device, which could then be used to flip a switch in the firmware.

In my opinion it makes sense: I would rather pay 35€ + optionally 5€ for that feature, rather than 40€ mandatory.