View Full Version : How 2 make a 16bit Xvid ?
CrunchM
10th January 2003, 18:33
How do i encode XviD i only 16bit color, all ways that way i have tryed i'v got a 24bit encode with 16bit colors and that looks bad =/
so could anybody help me pLz =):confused:
Suikun
11th January 2003, 11:58
16 bit will always look worse than 24 bit to begin with. Why would you want to encode in 16 bit?
XviD doesn't use RGB24 or 16 internally, but YV12, which is 12 bit and a completly different color format (one plane of brightness and two of chrominance at 1/4th size; RGB is three full red/green/blue planes).
CrunchM
11th January 2003, 16:09
The reason i want to encode in 16bit is that i have some rip's (that i did not make my self)that are in 16bit and they are a bit clearer in color changes, edges and small details
CrunchM
Acaila
11th January 2003, 17:12
Are you sure they are in 16 bit though? A 16 bit video looks awefull because you can see color-banding all over.
However DivX 4 used to make applications like explorer report a video encoded with it as 16 bit when it was in fact just normal 24 bit. I do hope you have one of those movies and not a real 16 bit movie.
CrunchM
11th January 2003, 20:17
yes i'm sure here is a sample check for u'r self ;)
CrunchM
-h
11th January 2003, 22:09
None of the MPEG video codecs (MPEG-1, MPEG-2 or MPEG-4) work in anything but 24-bit colour mode.
Having Y, U and V components, all stored with 8-bit precision, leaves no other possibility.
-h
CrunchM
12th January 2003, 09:45
Ok that sound right, but then how do u explain the sample ? =/
CrunchM
-h
12th January 2003, 20:00
AVI files have a header field which contains a "bits per pixel" value. You can write whatever value there you like - 8, 16, 24, 4096, whatever, and it doesn't change anything else about the AVI data. I suppose whatever this was encoded with wrote a 16 there.
-h
CrunchM
12th January 2003, 22:26
ok then i just need to fiddel with my settings to get a clearer result =)
CrunchM
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