So, we’ve been noticing some issues with our 1080p releases and the Xbox 360. Many people, including our tester, have been reporting that our 1080p material stutters on the Xbox 360. We’ve been investigating this issue for a couple of weeks now and we think we’ve finally found out the issue.Previous HypothesisAt first, we looked at the bit-rates of our 1080p encodes and noticed they were very high—some of them peaked at 40 megabits/second. Just for reference, the Bluray specifications cap the bit-rate of 1080p material at 30 megabits, so our material is just blasting that standard out of the water. In order to test this hypothesis, we encoded several different videos at varying bit-rates and found that the Xbox 360 does have issues with extremely high bit-rate material (i.e. it wouldn’t play after a certain point or wouldn’t play the material at all), but there was a twist. The Xbox 360 still stuttered at relatively low bit-rates (e.g. peak 10 megabits/second). Now, this is probably due to a buffer overflow issue of some sort, but that doesn’t really answer the question of whether or not high bit-rates are directly related to stuttering.Alternative HypothesisSo, after concluding that bit-rates didn’t impact stuttering, we looked at the type of material that was causing the stuttering. It quickly became apparent that all of the stuttering issues occurred on 1080p material. So, in order to test this, we encoded a video clip twice—once in 1080p and another in 720p and made their bit-rates the same (within a few megabits). Although, the overall bit-rate of the two videos were relatively tame (~ 15 megabits/second), the Xbox 360 played the 720p video flawlessly and stuttered on the 1080p material.This has lead us to conclude that the Xbox 360 has an issue with 1080p content.Now, we are not saying that the Xbox 360 will always stutter on 1080p content or that the Xbox 360 is flawed. What we’re saying is that our tests have concluded that whenever you playback H264 content that is rendered in 1080p, the Xbox 360 has the potential to stutter.We are not sure why this happens.We are not sure which aspect of the decoding process is involved.
^you tried it with MAG?I gave Move a go with MAG Trial last night... It is VERY accurate, but... I seem to be failing at playing properly lol. I felt like a noob playing fps for the first time.Gotta get accustomed to it. First impression for me is "controller all the way". If I spent more time with it...if anyone spends more time with it, things would be much better.
