May 2012
Intermediate to advanced
280 pages
5h 36m
German
Content preview from HTML5 & CSS3 (Prags)Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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7.2 Container und Codecs
Wenn wir über Video im Web sprechen, sprechen wir von Containern und Codecs. Sie denken vielleicht an ein Video von Ihrer Digitalkamera als AVI- oder MPEG-Datei, aber das ist eine zu starke Vereinfachung. Container sind wie ein Umschlag, der Audiostreams, Videostreams und manchmal zusätzliche Metadaten wie Untertitel enthält. Diese Audio- und Videostreams müssen kodiert werden – und da kommen Codecs ins Spiel. Video und Audio können auf Hunderte von Arten kodiert werden, aber für Video in HTML5 kommen nur einige wenige infrage.
Video-Codecs
Damit Sie ein Video ansehen können, muss Ihr Videoplayer es dekodieren. Leider kann es vorkommen, dass Ihr Player das Video nicht dekodieren kann, das Sie ansehen möchten. Manche Player ...
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