[新聞] YouTube 正設法讓你更容易享受其 4K 播放服務
看板Browsers作者kaoh08 (AIR -the 1000th summer-)時間9年前 (2015/04/07 18:23)推噓22(22推 0噓 138→)留言160則, 13人參與討論串1/1
雖說 YouTube 現在支援播放 4K 畫質影片,但問題是家用網速大多都受不了,導致觀看幾十秒的影片動軋要緩衝十幾分鐘。作為服務提供者的 YouTube,正打算改用 VP9 編碼方式,藉此提高 4K 影片的可觀度和畫質。新解碼方式將比標準的 H.264 使用少達一半頻寬,也能根據使用者的網速而優先提高影片銳利度和快速移動的畫面。
因此,日後在 YouTube 播放的影片不單單是更快完成緩衝,更能因應網速而提供最好的播放畫質。這讓使用者的網絡配置即使未能足夠處理 4K 影片,但仍會得到比高清更好的影片畫質。有關的新編碼已經被 Chrome、Firefox
兼容,大多新裝置如 Galaxy S6 也有原生解碼。只是能否廣泛普通就是未知數了,畢竟 H.265 才是業界推動的標準。
http://chinese.engadget.com/2015/04/06/how-youtube-uses-vp9-to-help-4k/#continued
http://tinyurl.com/lwdvq9a
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※ 編輯: kaoh08 (73.8.184.63), 04/07/2015 18:24:55
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