Video: Can MPEG-DASH and HLS Coexist in the Current Video Delivery Ecosystem?
阿卡迈的意志法则 explains how and why the CDN is supporting both HLS and DASH equally, 赞扬两者的优点, and reveals why he is so excited about the imminent arrival of the Common Media Application Format (CMAF).
Learn more about emerging codecs at 流媒体东部.
Read the complete transcript of this video:
将法律: 在DASH和CMAF上，我有偏见. I vice-chair the DASH Industry Forum. I've been involved with DASH for a long time, but I'm also practical. At Akamai we did our largest live event ever two months ago, 7.每秒1tb. HLS就是这么做的, but Akamai is supporting HLS and DASH equally, so all new features coming out support both formats, because we think both have a place in the delivery ecosystem.
DASH has some technical advantages over HLS. It's playing a VOD asset, HLS you have to load two manifests to start playback. DASH，你只装一个. Live streaming with HLS with a DVR window, you're constantly loading a list of assets, only to discover with the last new one is. 这是相对低效的.
On its plus side, HLS, as has been mentioned, is deployed. It has a robust advertising solution out there right now, and I think that in many cases trumps deployment decisions for many people, so until DASH gets its advertising act to the same level as HLS is, you're going to see a lot of HLS deployments.
CMAF, I think, is a wonderful invention. It's unicorn and ice cream cake time for our industry. 再一次。, we dynamically make TS at MP4 on the edge because of this problem we've had historically between HLS and ISO branch of containers that all the other streaming formats support, and when you don't need to do that, 管理两个清单, which are just little text files. We can do that dynamically all day and so will everybody else. No one's complaining about making that, storing that, or manipulating that, or delivering that. We just care about the heavy video files, and the faster we can centralize on CMAF from encoding to distribution of players the better off everybody is. I think there's going to be a tremendously fast adoption of that technology.
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