[FFmpeg-user] YUV 422P Conversion Clipping detection

[Roger Pack]

> I'm trying to detect clipping when converting from YUV422p to RGB24. I've
> looked through some of the variables included when calling sws_scale() but
> didn't find any flags that stood out so I'm trying to convert manually using
> the descriptions on wikipedia. http://en.wikipedia.org/wiki/YCbCr
>
> I've tried several different methods of converting but I don't seem to be
> getting the proper rgb values. sws_scale converts the image properly however
> when I convert it I get values between 16-20;


Are you trying to fix this problem?
http://ffmpeg.org/pipermail/ffmpeg-user/2011-August/001848.html

(ffmpeg seems to convert from rgb wrong)?
-r