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請幫忙解惑關於Live Smooth Streaming 技術 RRS feed

  • 問題

  • 今天遇見一個大公司老闆,一直在說Smooth Streaming這個技術有多好!!
    我問他問題,他又覺得我在質欵他要我自己去找資料!但我看了網路上資料還是有點不明白!!

    http://www.iis.net/download/LiveSmoothStreaming
    關於以下這一段話
    Using HTTP to deliver live events takes advantage of the scale of existing HTTP networks and keeps content close to the end user and makes true HD (720p+) a realistic option for live Web broadcasts. The additional advantage of using HTTP-based delivery for live events is that the existing HTTP infrastructure also drastically increases live event availability.

    For the most popular live Web broadcasts, CDNs and content providers have to worry about how much capacity they can dedicate on their much more resource constrained streaming network. By using HTTP, they can take advantage of all the resources of their network and do not have to worry about maxing out network capacity and shutting out users from live events.

    ===========================================================

    客人訴求重點在於,如果你用了Live Smooth Streaming ,你可以利用"公網"上所有的HTTP Server來幫你轉資料!
    例如你今天在中華租了一台機器,放上IIS7,建立RDV,把資料放上 ,因為中華有Proxy Server,因此你其它Client透過Smooth Streaming 技術,所以你可以 "免費"而且"無限制"的使用中華的頻寬????????
    真的有這麼好嗎???(存欵)
    在我的認知裡,向主機商租用,不是一直都有流量限制?若說HTTP的架構下,難道就沒有限制嗎?(存欵)
    所謂的existing HTTP infrastructure是我們自己建立的HTTP架構,還是泛指全世界的HTTP架構大小??
    希望了解此技術的前輩給予解惑!

    謝謝!

    2011年11月1日 下午 09:20

解答

  • 您好,

    根據我的理解,Smooth Streaming和頻寬的關係應該是,Smooth Streaming會自動依照可以使用者(Client端)可用的頻寬,送出不同品質的串流資訊,以達到對使用者來說,影像不致於發生中斷或是Delay的狀況(當然頻寬不足時,接收到的串流品質就會比較差)

    您所提供的連結中也有提到:

    Smooth Streaming dynamically adapts stream quality based on a user's momentary connection speed - so consumers with high bandwidth connections can experience near HD or true HD quality (720p+) streaming (e.g., from 1.5Mbps to 3Mbps and beyond). Others with lower bandwidth speeds receive the highest possible bitrate based on their current connection speed and hardware capabilities.

     

    希望以上內容對您有幫助~


    Ouch Liu
    Welcome to visit by blog: Ouch@點部落
    Welcome to join the Designer x Developer group on Facebook: Facebook 設計x程式 社團
    2011年11月3日 上午 05:21

所有回覆

  • Smooth Streaming應該跟使用甚麼頻寬甚麼沒甚麼關係吧

    2011年11月3日 上午 03:33
  • 您好,

    根據我的理解,Smooth Streaming和頻寬的關係應該是,Smooth Streaming會自動依照可以使用者(Client端)可用的頻寬,送出不同品質的串流資訊,以達到對使用者來說,影像不致於發生中斷或是Delay的狀況(當然頻寬不足時,接收到的串流品質就會比較差)

    您所提供的連結中也有提到:

    Smooth Streaming dynamically adapts stream quality based on a user's momentary connection speed - so consumers with high bandwidth connections can experience near HD or true HD quality (720p+) streaming (e.g., from 1.5Mbps to 3Mbps and beyond). Others with lower bandwidth speeds receive the highest possible bitrate based on their current connection speed and hardware capabilities.

     

    希望以上內容對您有幫助~


    Ouch Liu
    Welcome to visit by blog: Ouch@點部落
    Welcome to join the Designer x Developer group on Facebook: Facebook 設計x程式 社團
    2011年11月3日 上午 05:21