DASH Third Version to Reduce 在线直播 Latency: Video
特洛伊德雷尔: 大家好！. This is 特洛伊德雷尔 coming to you from 流媒体 East 2016 in New York City. I'm having short conversations with thought leaders in our industry. Right now I'm joined by Alex Giladi.
亚历克斯Giladi: 是的.
特洛伊德雷尔: 总建筑师 康卡斯特公司. Besides your fascinating work at that giant, you're also involved in multiple working groups about the development of DASH, DASH的未来. That's what you're going to be talking about here tomorrow. I'd love to hear from your perspective what are the challenges DASH is facing 和 where is it going? What new features can we expect in the implementation?
亚历克斯Giladi: 谢谢你们邀请我来这里. I think that what is happening right now 和 what has been happening for the last couple of years is pretty exciting. DASH最初设计时, there were use cases that we didn't address or we addressed but some things were missing. A lot of work went into making sure that things are h和led better in the second 和 the upcoming third edition. A lot of interesting things are happening for broadcast 和 for live distribution. 我们现在更加强大了, 效率更高, 和, 在我个人看来, we are more efficient at what you can get right now out of other streaming systems.
特洛伊德雷尔: 好吧. What are the main improvements that you are looking at for this third version?
亚历克斯Giladi: There are a lot of different things that are going into it. One interesting thing is reduction of latency. 使用HLS，你可以达到30秒, right now with DASH you can be at several seconds 和 the thought is that in some advanced cases you can go below a second, 和 this is something that is going on now.
特洛伊德雷尔: You can h和le below a second latency for live 4K video? Are we talking about high resolution?
亚历克斯Giladi: There are tools for doing low latency. The resolution 和 the specific codec is a completely orthogonal problem. The problem that is h和led by DASH is how to signal this 和 how to make sure that you can actually get to this. What is in there in terms of codec is a different question. This is actually the nice thing about DASH versus many other systems. You can use DASH with completely different codecs. 这取决于执行. For instance, there are people that are using DASH with VP9 和 it works perfectly well.
特洛伊德雷尔: We're going to see a new version in the fall, is that correct?
亚历克斯Giladi: 这是最新的修正案, 第四修正案, which is the last thing we're going to have until the next version, 直到下一版. 现在正在定稿.
特洛伊德雷尔: 神奇的. Well, I know we all can't wait to see what you guys have come up with. 谢谢你！ very much for joining me here today.
亚历克斯Giladi: 谢谢你！.
特洛伊德雷尔: 好吧. Coming to you from 流媒体 East, this is 特洛伊德雷尔.
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