[FFmpeg-devel] [PATCH 2/2] fic: Support rendering cursors

[Derek Buitenhuis]

On 4/22/2014 11:11 PM, Michael Niedermayer wrote:
> *ptr is uint8 so its value is something from 0 to 255
> 
> 25 * ptr[0] + 129 * ptr[1] +  66 * ptr[2]
> can at lowest be 0 and at highest be (25+129+66)*255
> (25+129+66)*255 / 255 = 220
> and 220 + 16 is 236
> so i dont see how this could overflow or underflow
> 
> similar with the other 2 equations

OK.

- Derek