2014-04-08, 20:30
(2014-04-08, 16:03)voochi Wrote:(2014-04-08, 05:48)davilla Wrote: Actually, bitrate is also meaningless. The one true king is knowing the video format, profile and level
Wrong.
Profile and level define upper limits (for bitrate, res, ref frames, etc).
Simply knowing the profile and level of a tested video does not tell you how close you are to the upper limits.
You need to know every aspect of the video spec. If you ensure that every aspect - res, bitrate, ref frames, fps - is right on the max limit for a given profile and level, THEN you can declare compliancy. So to say that bitrate is meaningless is absurd.
It is quite absurd Users go around quoting bit-rates all the time. A bit-rate number by itself is meaningless. I can craft a special h264 with an absurd bit-rate. It means nothing. FFMpeg might be able to play it, but I guarantee that most hardware decoders will choke and die. Stick with the specs or your video content might now play.