A.R.Drone Developer Guide - Abstract
A.R.Drone Developer Guide - Abstract
A.R.Drone Developer Guide - Abstract
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PSC<br />
(22 bits)<br />
GOBSC<br />
(22 bits)<br />
MBC<br />
(1 bit)<br />
PFORMAT<br />
(2 bits)<br />
GOBQUANT<br />
(5 bits)<br />
MBDESC<br />
(8 bits)<br />
Block Y0<br />
PRESOLUTION<br />
(3 bits)<br />
Each Group of Blocks<br />
(GOB) correspond to a<br />
line of Macroblocks<br />
MBlock 0 MBlock 1 MBlock j<br />
MBlock N<br />
OPTIONNAL (depends<br />
on MBDESC)<br />
Data for macroblocks<br />
(YYY bits)<br />
MBDIFF<br />
(2 bits)<br />
PTYPE<br />
(3 bits)<br />
(cf.Erreur !<br />
Source du<br />
renvoi<br />
introuvable.)<br />
Data for block<br />
(ZZZ bits)<br />
Block Y1 Block Y2 Block Y3 Block CB Block CR<br />
7.2.1.2 Picture start code (PSC) (22 bits)<br />
PQUANT<br />
(5 bits)<br />
PFRAME<br />
(32 bits)<br />
Groups of blocks<br />
(XXX bits)<br />
GBlock 0 GBlock 1 GBlock i<br />
GBlock M<br />
OPTIONNAL<br />
(depends on MBC)<br />
Like H.263 UVLC start with a PSC (Picture start code) which is 22 bits long:<br />
0000 0000 0000 0000 1 00000<br />
A PSC is always byte aligned.<br />
7.2.1.3 Picture format (PFORMAT) (2 bits)<br />
EOS<br />
(22 bits)<br />
(cf. Erreur !<br />
Source du<br />
renvoi<br />
introuvable.<br />
)<br />
Complete description<br />
of a 16x16 image block.<br />
(cf.Erreur ! Source du<br />
renvoi introuvable.)<br />
The second information is the picture format which can be one the following : CIF or VGA<br />
• 00 : forbidden<br />
• 01 : CIF<br />
• 10 : VGA<br />
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