商品描述
Beginning HTML5 Media, Second Edition is a comprehensive introduction to HTML5 video and audio. The HTML5 video standard enables browsers to support audio and video elements natively. This makes it very easy for web developers to publish audio and video, integrating both within the general presentation of web pages. For example, media elements can be styled using CSS (style sheets), viewed on a mobile device, and manipulated in a Canvas or an audio filter graph. The book offers techniques for providing accessibility to media elements, enabling consistent handling of alternative representations of media resources. The update includes all of the changes and revisions since the first HTML5 draft.
Beginning HTML5 Media dives deep into the markup that is introduced for media element support in browsers. You’ll explore the default user interface offered through browsers for media elements, as well as the JavaScript API provided to control their behavior. You’ll also learn how to account for H.264, WebM and Ogg Theora codecs as well as explore the emerging Web Audio API standard, which provides an extensive set of hardware-accelerated audio filters to achieve a level of audio signal manipulation in the browser previously only available to audio professionals.
商品描述(中文翻譯)
《開始使用 HTML5 媒體（第二版）》是一本全面介紹 HTML5 視頻和音頻的書籍。HTML5 視頻標準使瀏覽器能夠原生支持音頻和視頻元素。這使得網頁開發者能夠輕鬆地發布音頻和視頻，並將其整合到網頁的整體呈現中。例如，媒體元素可以使用 CSS（樣式表）進行樣式設置，並在移動設備上查看，還可以在 Canvas 或音頻過濾器圖中進行操作。本書提供了為媒體元素提供可及性的方法，使得對媒體資源的替代表示進行一致處理。此次更新包括自第一版 HTML5 草案以來的所有變更和修訂。
《開始使用 HTML5 媒體》深入探討了為瀏覽器支持媒體元素而引入的標記。您將探索瀏覽器為媒體元素提供的默認用戶界面，以及用於控制其行為的 JavaScript API。您還將學習如何考慮 H.264、WebM 和 Ogg Theora 編解碼器，並探索新興的 Web Audio API 標準，該標準提供了一套廣泛的硬體加速音頻過濾器，以實現瀏覽器中以前僅限於音頻專業人士的音頻信號處理水平。
