Wii U 的七種操控模式 - 任天堂
By Ethan
at 2011-06-08T22:41
at 2011-06-08T22:41
Table of Contents
: 推 BraveCattle:其實就算是50Mbps,也夠支援2個HD畫面了,純HD每分4MB, 06/08 10:14
: → BraveCattle:但透過無線理論上應該會針對影像進行壓縮 06/08 10:15
50Mbps 支援兩個 HD 畫面,我想這數據應該是從目前 BD 的影像bit rate來推估的
但請別忘記,那是壓縮後的 bit rate
所以,如果 Wii U 送出影像還要經過 H264 encoder 傳輸出來後
再經過無線網路傳到控制器上,然後控制器再用 H264 decoder 解出來
那 latency 之可怕,玩遊戲?大概不用想走這條路
假設用 200MHz,每個 Macro Block (MB) 花 800T的晶片
光壓完一張1920x1080的影像就要花上 32.4 ms
這還不包含封包傳遞以及解壓縮的時間
目前我看了幾個展示,都是採有線的方式連接到主機,然後用控制器玩遊戲
而且那條線還異常的粗,如果只是供電和控制訊號的傳輸
應該不需要那麼粗的線材,所以影像訊號很有可能是採有線的方式傳輸
不知有無無線的展示?
--
: → BraveCattle:但透過無線理論上應該會針對影像進行壓縮 06/08 10:15
50Mbps 支援兩個 HD 畫面,我想這數據應該是從目前 BD 的影像bit rate來推估的
但請別忘記,那是壓縮後的 bit rate
所以,如果 Wii U 送出影像還要經過 H264 encoder 傳輸出來後
再經過無線網路傳到控制器上,然後控制器再用 H264 decoder 解出來
那 latency 之可怕,玩遊戲?大概不用想走這條路
假設用 200MHz,每個 Macro Block (MB) 花 800T的晶片
光壓完一張1920x1080的影像就要花上 32.4 ms
這還不包含封包傳遞以及解壓縮的時間
目前我看了幾個展示,都是採有線的方式連接到主機,然後用控制器玩遊戲
而且那條線還異常的粗,如果只是供電和控制訊號的傳輸
應該不需要那麼粗的線材,所以影像訊號很有可能是採有線的方式傳輸
不知有無無線的展示?
--
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