Hi 2008/7/31 Reimar Döffinger <[EMAIL PROTECTED]>
> On Wed, Jul 30, 2008 at 06:06:11PM +0200, spyfeng wrote: > > Author: spyfeng > > Date: Wed Jul 30 18:06:11 2008 > > New Revision: 2932 > > > > Log: > > remove av_random(). > > use simple way to generate random number as uid. > > Why does the specification ask for a random number? > Do the numbers you generate (which, to be precise are not at all random, > just an obfuscated deterministic sequence) match that reason? > Do they have to be so obfuscated to match that reason or would something > simpler do as well, and possibly more reliably (like a constant value or > and increasing number - note that a constant is a possible output of any > true random number generator, does the spec have provisions for that > case or do they just rely on luck like RTSP seems to do)? > according to the specs, the goal is generating UUID which defined by ISO 11578. there are many ways to generate UUID, random UUID is acceptable and is version 4 of ISO 11578. Version 4 UUIDs use a scheme relying only on random numbers. This algorithm sets the version number, as well as two reserved bits. All other bits are set using a random or pseudorandom data source. -- Best wishes~ _______________________________________________ FFmpeg-soc mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
