Video: Dynamic Codec Management and the Emerging Multi-Codec World

了解更多关于多编解码器交付在下内容交付峰会.

看看Peter Chave的主题演讲，电视传送的未来，在… 流媒体会议视频门户.

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彼得Chave: 我们住在香港.264 world where there really aren't a lot of other things. 为什么? 因为当我们开始做OTT的时候，它就在那里. 我们所有的目录都在里面编码. It worked well for the way the world was working at the time. 为什么? 98%的设备支持H.264, we don't have to worry about it, it's got global coverage.

HEVC，在… other hand, is used for the biggest, it's there in the distance. 它用于4K赛事. It's used to feed devices that have hardware in them that can support it. AV1 is used for user-generated and for other stuff, 所以它在这里的距离, but in terms of for OTT broadcast video applications, H.264主宰了网络世界.

Part of the reason HEVC is not as ubiquitous is the regulatory world, the whole patent pool and licensing problems which I'm going to get to in a second, 但它在那里是因为当我们需要4K的时候, 我们必须找到一个格式. We just can't get the quality of the bits with HEVC. 我们将转向那个更新的CodeEV.

So, by 2022, I think the landscape will have changed. 我想我们会有一个更翠绿的山谷. 我们不会只有这片H沙漠.264. H.264肯定还会在那里. We're not going to go back and transcode all of this old content. 但是将会有更多HEVC山丘. There'll be AV1 hills, there'll be EVC hills, and there will be VVC hills.

So I think we will live in a much more multi-codec world, 而我们至少在OTT是这样的, 我们不需要接受这些, unlike what we've had to do in the broadcasting industry in the past. 我想我们的报应到了.

我们将如何处理所有这些编解码器? Again, cloud transcode has got very ubiquitous and very, very inexpensive. I think with edge servers being able to give us feedback about who's consuming what data, 然后应用业务逻辑规则说, if I have a device that can now needs lower bandwidth, I can spin up and create those in real time and put them into my storage when it makes business sense to do it.

也, as other devices appear on the network which can have a better experience, 然后我就回去拿我的mezz, and I will make higher-quality experiences to feed those devices. 作为设备, 比如可以支持的笔记本电脑, 说, AV1在这里, 这对我来说是有商业意义的, 来支付仓储费, 转码和交付, I will spin up other renditions in other formats which look better and feed those devices in a nicer way. When a big smart TV that can do a really nice HDR 4K experience, I'm going to spin up higher bitrates in those higher formats when it makes business sense to do that.

I think this is the way that we're going to handle multi-codecs in the future and as popularity of content drops off, 随着内容从目录中消失, we will make trim rules and we will automatically manage the cache and manage the origin so we're not storing bits forever and ever as we tend to do today in these giant libraries in every possible format we may possibly need. 我认为它会更有活力.