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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C.2 Video für das Web kodieren
Wenn Sie mit HTML5-Video jede Plattform erreichen möchten, müssen Sie Ihre Videodateien in mehren Formaten kodieren. Die Kodierung mit H.264, Theora und VP8 ist zeitintensiv – sowohl bei der Einrichtung eines Open Source-Encoders wie etwa FFMpeg[96] als auch bei der eigentlichen Kodierung. Die richtige Kodierung von Videos sprengt den Rahmen dieses Buchs. Wir haben gar nicht genug Zeilen, um den folgenden Befehl zu erklären, der eine Datei in VP8 mit dem WebM-Container konvertiert:
ffmpeg -i blur.mov
-f webm -vcodec libvpx_vp8 -acodec libvorbis
-ab 160000 -sameq
blur.webmWenn Sie sich nicht selbst mit den Einstellungen herumärgern möchten, können Sie Ihre Videos mit dem Webservice Zencoder[97] in alle für HTML5 erforderlichen ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.