RPi 4 with Alpha build of video and audio issues with TVHeadend

dave2318 · July 2, 2019 at 9:23 PM

Hi all,

Just got my Pi 4 4GB to replace my Pi 3 B+.

Loaded the Alpha release on it and i have a few problems, the solution was to reduce video to 720p from 1080p:

I use Audio passthrough on HDMI to a Sony 5.1 surround sound box (all works perfectly on Pi3)

When running at 1080p the audio and video are massively out of sync on recordings from TVHeadend (TS SD and HD files).

The files say they are being hardware decoded but the sound is massively out of sync or stuttering.

So far BluRay and DVD MKV's ripped with MakeMKV work perfectly, so i'm thinking it's some kind of format/streaming issue

Any thoughts?

Thanks

Dave

dave2318 · July 4, 2019 at 7:55 PM

I think i've sorted it with the updated start.elf and fixup.dat (Start4.elf and fixup4.dat as on github) from:

The latest ones result in the PI not booting.