Join Date: Jan 2002
Location: Washington State
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 1334 Post(s)
I will try to address all the questions in one reply:
1. Aspect ratio: our system can handle arbitrary aspect ratio control. You can encode at any ratio you like. Once the file is encoded, you then add two numbers to the header of the file that tells the player the output aspect ratio. The media player will use this header information to resize the output to the proper ratio.
2. Hyperthreading speeds encoding by about 15%. It should have no effect on decode. SMP does not help decode in a significant way.
3. I don't remember Gabe's questions regarding Liquid. This clip was re-encoded after the initial concerns were raised and I think everyone agrees the new versions are much better. Note that we are not saying that anything that you throw at WMV comes out high definition. You still need to use proper encoding mode, bit rate, resolution, etc. The liquid clips are just some samples. They are not intended to be the gold standard -- especially since they are some of the most difficult clips you can find with a lot of motion and film noise. Typical film content encodes a lot better.
4. The statement that I made regarding D-VHS was the result of double blind tests done by DVD Forum ad-hoc group to select the next generation HD codec for red laser. At the NAB conference last week, we disclosed the detailed results showing what I stated (that we match D-VHS at 7.7 Mbit/sec and also the fact that we did better than ALL other codecs on these tests). So this is not an opinion or a test conducted by Micorosft subject to bias. But given the fact that the data was not posted in this forum, I accept the healthy skepticism.
5. I am not aware of any plans to post any of the content on our web site. The DVD is the only way to get the clip at this point. Clearling rights for Microsoft to use content is usually a difficult process :).