2024-12-24, 10:19 PM
The bit rate used is a fixed ratio. Depending on the original codec and trancoded codec, Jellyfin will adjust the bit rate accordingly. Going from HEVC to H264 will increase the bit rate by, IIRC, 40%. I guarantee you the issue is not the bit rate. AMD's H264 encoders were not, and still aren't, very good. None of their encoders for that era were good.
Jellyfin 12.2 (Docker)
Debian 13 w/Xanmod amd64v3 LTS kernel
AMD Ryzen 5500 w/32GB DDR4
Intel Arc A380
OS drive - SK Hynix P41 1TB
ZFS Storage pool
vdev1 - 6x WD Red Pro 6TB CMR in RAIDZ1
vdev2 - 3x WD Red Pro 18TB CMR in RAIDZ1
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Debian 13 w/Xanmod amd64v3 LTS kernel
AMD Ryzen 5500 w/32GB DDR4
Intel Arc A380
OS drive - SK Hynix P41 1TB
ZFS Storage pool
vdev1 - 6x WD Red Pro 6TB CMR in RAIDZ1
vdev2 - 3x WD Red Pro 18TB CMR in RAIDZ1