Key frame without PLI

mediasoup libraries
1

I’ve just read here that if the keyframes are not in reply to the PLI, they “are mostly useless”.

So if a producer (like ffmpeg) does not support PLI and sends keyframes at regular intervals, but the consumer keeps on sending PLIs he will never be able to recover? Or did I misunderstand this?

2

Firstly, if the producer does not support PLI then do not negotiate them if you know they will be ignored.

Secondly, the consumer will have the chance to start encoding from a fresh key frame every time it receives one, no matter if it was requested or not.

3

Thanks! I guess you mean “consumer will have the chance to start decoding from a fresh key frame”.

4

And yes, I don’t negotiate any RTCP feedback (like you guys do here).

5

Yes. It’s “decoding”.

6

Yes, “decoding” of course.