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LoRd_MuldeR · 18th December 2008, 00:50

The problem with some YUV formats is the chroma subsampling. The subsampling happens when converting from RGB to the YUV format, so before the actual encoding.
Subsampling may blend the (color) information of neighboring lines together, lines that belong to different fields and hence shouldn't be mixed together!

See this for more info:
http://en.wikipedia.org/wiki/Chroma_...ems_and_ratios

(I think 4:1:1, 4:2:2 or 4:4:4 would be okay for interlaced, but 4:2:0 wouldn't. Guess that's the YV12 -vs- YUY2 difference mentioned by squid_80)

18th December 2008, 00:50	#23 \| Link
LoRd_MuldeR Software Developer Join Date: Jun 2005 Location: Last House on Slunk Street Posts: 13,248	The problem with some YUV formats is the chroma subsampling. The subsampling happens when converting from RGB to the YUV format, so before the actual encoding. Subsampling may blend the (color) information of neighboring lines together, lines that belong to different fields and hence shouldn't be mixed together! See this for more info: http://en.wikipedia.org/wiki/Chroma_...ems_and_ratios (I think 4:1:1, 4:2:2 or 4:4:4 would be okay for interlaced, but 4:2:0 wouldn't. Guess that's the YV12 -vs- YUY2 difference mentioned by squid_80) __________________ Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊ Last edited by LoRd_MuldeR; 18th December 2008 at 01:50.