At first it seemed the playthrough was smoother but then the rpi4 started making noises I've never heard before. And I don't even have a fan. Nor heatsink. Just using the official case with the top off.
The boards are designed to run hot but will self-preserve by throttling back. You can't (and shouldn't) run overclocked boards without active or good passive cooling.
I am let down that my PI4 can't fluently decode AV1 1080p video on 1080p resolution, while my 2018 Android phone can.
I tested one-minute snapshots from the most complex passages of two 2.39:1 AV1 10-bit Rec.709 [email protected] 7Mbps movies that play flawlessly with all quality decoding options on VLC player for Android and mpv player, using dav1d software decoder aswell, full deblocking.
How come my battery powered 2018 Snapdragon sdm845 armv8 64-bit processor can handle fluid 1080p AV1 10-bit video and my latest nightly Libreelec 3A turbo=1 1800-Mhz powered RPI4 8Gb RAM can't?
I use Libreelec as a best audio quality streamer for movies and music using a dedicated SPDIF audio hat. Also good passive heatsink and low temps (~50ºC). 70% cores CPU utilization.
I tried numa hack on latest bootloader but it doesn't make any difference. Also maximum caching. Reading from a fast USB3 drive.
How come my battery powered 2018 Snapdragon sdm845 armv8 64-bit processor can handle fluid 1080p AV1 10-bit video and my latest nightly Libreelec 3A turbo=1 1800-Mhz powered RPI4 8Gb RAM can't?
Your phone is running at 2800MHz, has an extra 4 cores, and cost far more than the pi 4 is probably the reason.
Anyway, the PI4 is newer (2019) than my Xiaomi Mi 8 phone (2018). Snapdragon 845 is more powerful, yeah, but it's a smaller chip inside a phone.. I paid more for design, display, storage.. the Pi4 is just a board. It should be more performant powered up with an adapter.. I thought Rasberry Pi competed with PCs, not smartphones!
Anyone still use a 2018 phone? What an amazing value the Mi 8 is.
By the way, the BCM2712 from the Pi5 is already more powerful than my Snapdragon 845.
The moral of the story is: if you really need AV1 support, get something that really supports AV1.
