Doom9's Forum - View Single Post - How can I understand yuv-rgb file

J_Darnley · 14th December 2011, 02:00

YUV is the common, quicker way to type Y'CbCr which is this colourspace: http://en.wikipedia.org/wiki/Y%27CbCr
4:2:0 is the chroma sub-sampling used: http://en.wikipedia.org/wiki/Chroma_subsampling
8-bit means how many bits per sample are used, almost: http://en.wikipedia.org/wiki/Color_depth

As for what happens when you load this file into your program, who knows? It is compressed, so you could be reading it without decoding; or reading the output of the decoder which should as mediainfo describes the file in which case it is more likely to be 16-235 luma and 16-240 chroma; or it has been converted to RGB for display in which case it is likely to be 0-255.

14th December 2011, 02:00	#5 \| Link
J_Darnley Registered User Join Date: May 2006 Posts: 957	YUV is the common, quicker way to type Y'CbCr which is this colourspace: http://en.wikipedia.org/wiki/Y%27CbCr 4:2:0 is the chroma sub-sampling used: http://en.wikipedia.org/wiki/Chroma_subsampling 8-bit means how many bits per sample are used, almost: http://en.wikipedia.org/wiki/Color_depth As for what happens when you load this file into your program, who knows? It is compressed, so you could be reading it without decoding; or reading the output of the decoder which should as mediainfo describes the file in which case it is more likely to be 16-235 luma and 16-240 chroma; or it has been converted to RGB for display in which case it is likely to be 0-255. __________________ x264 log explained \|\| x264 deblocking how-to preset -> tune -> user set options -> fast first pass -> profile -> level Doom10 - Of course it's better, it's one more. Last edited by J_Darnley; 14th December 2011 at 02:09.