As video service providers increase deployment of managed IP video service to various consumption devices (IPTV set-tops, tablets, smartphones, etc.) there has been an increase in unicast (HTTP) video delivery mechanisms using H.264 Adaptive Bit Rate (ABR) video encoding. At the same time, the MPEG-2-only legacy QAM set-top population is declining, leading to a tipping point in which the population of set-tops that are HD H.264-capable outnumbers the legacy devices. The confluence of HTTP ABR/H.264-enabled devices and H.264 QAM set-tops leads to an interesting decision point: should service providers manage two core video platforms (IP and QAM) as many are doing today, or should these platforms converge at least at some level? The answer is "Yes." That is, the core should converge to HTTP, but QAM delivery to set-tops still need to be supported.
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机译：由于视频服务提供商增加了对各种消费设备（IPTV机顶盒，平板电脑，智能手机等）的管理IP视频服务的部署。使用H.264自适应比特率（ABR）的单播（HTTP）视频传送机制已经增加了单播（HTTP）视频传送机制）视频编码。与此同时，MPEG-2-occaly QAM机顶群人口下降，导致举报点，其中HD H.264的集合群体能够寡出遗留设备。 HTTP ABR / H.264的设备和H.264 QAM机顶盒的汇合导致了一个有趣的决策点：如果服务提供商应该管理今天的两个核心视频平台（IP和QAM），或者应该这些平台至少在某个级别收敛？答案是“是的”。也就是说，核心应收敛到HTTP，但仍需要支持QAM传递到设置的。
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