Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
24th November 2021, 10:40 | #1 | Link | |
Registered User
Join Date: Sep 2019
Location: London
Posts: 11
|
x264 for Blu-ray - Video Underflows
Occasionally when compiling a Blu-ray project I get a warning that there are video underflow errors. Can anyone suggest a way to fix this?
I encode on an iMac 5k 27" (Big Sur) via terminal/ffmpeg. Blu-ray authoring is done using Sony DoStudio. A typical encode would be 30k/35k to 40k, with a buffer of 30k. Very slow, tune film. -c:v h264 -preset veryslow -tune film -b:v 30000k -maxrate 40000k -bufsize 30000k -level 4.1 -pix_fmt yuv420p -x264-params bluray-compat=1: open-gop=1:slices=4:keyint=24:colorprim=bt709:transfer=bt709:colormatrix=bt709: pass=1 (then pass=2) Quote:
Last edited by RainbowThief; 24th November 2021 at 10:43. |
|
Tags |
blu-ray, ffmpeg, mac osx, x264 |
Thread Tools | Search this Thread |
Display Modes | |
|
|