Re: Video copy protection

On Feb 9, 2010, at 11:57 , Jonas Sicking wrote:
>> Because that's an open-ended problem,
> 
> I still don't understand. How is getting the 'no save' meta data
> different from getting meta data like duration and frame rate?
> 

pretty well any media subsystem worth using will tell you the width and height, duration, etc. of the media.  Not many have explicit access to this kind of data;  you'd need special-purpose code to grovel around in movie files, mp4 files, avi files, ogg files, mxf files, rtsp SDP descriptions, mpeg-2 transport streams, .... well, you get the idea.


David Singer
Multimedia and Software Standards, Apple Inc.