4K streaming

[IA76]

Hi

We currently live stream in 2K using a 4K camera connected via HDMI to our PC. We can live stream at 2K with no dropped frames and CPU usage will sit at around 70%. We are using Wirecast with the X264 encoder.

If we try and stream at 4K the CPU hits 90%+ and we have a load of dropped frames. What would we need to change or upgrade to live stream at 4K?

Our pc is an i7-8700, 32GB ram, GTX 1060 3GB graphics card and a Blackmagic Decklink mini 4k HDMI capture card and we also have a 4K camera.

[davexnet]

Can you use faster settings in the x264 encoder ?

[usually_quiet]

Your Intel processor's iGPU (UHD 630 graphics) and your NVIDIA GTX 1060 graphics card's GPU can perform H.264 and H.265 hardware encoding. Maybe it would be worth trying the GPUs for encoding to reduce processor usage. Also, all the video streaming websites that I know anything about use H.265, VP9, or AV1 for 4K streaming instead of H.264 due to bandwidth considerations.

[october262]

Hi

We currently live stream in 2K using a 4K camera connected via HDMI to our PC. We can live stream at 2K with no dropped frames and CPU usage will sit at around 70%. We are using Wirecast with the X264 encoder.

If we try and stream at 4K the CPU hits 90%+ and we have a load of dropped frames. What would we need to change or upgrade to live stream at 4K?

Our pc is an i7-8700, 32GB ram, GTX 1060 3GB graphics card and a Blackmagic Decklink mini 4k HDMI capture card and we also have a 4K camera.

make sure that you have the latest driver update for your computers graphics card.
If you’re using software x264 encoding, consider using a faster preset or start using hardware encoding (NVENC/AMD) and this will be less taxing on your CPU to encode the stream.