macOS: HEVC 4:4:4 decoded content is converted to 4:2:0
Problem description
When playing a 4:4:4 HEVC decoded with avcodec (--no-hw-dec
) on a Mac Intel or M1, the chroma is converted to 4:2:0.
How to reproduce
- VLC nighlty version used: https://artifacts.videolan.org/vlc/nightly-macos-arm64/20240417-0417/.
- Video used: chroma-hevc-444.mkv
Expected result
Actual result
Some extra notes
The issue seems to occur only with vout samplebufferdisplay: logmacos-ko.txt
It is working when using caopengllayer
: logmacos-ok.txt