Silvia Pfeiffer's The Definitive Guide to HTML5 Video PDF

By Silvia Pfeiffer

ISBN-10: 1430230908

ISBN-13: 9781430230908

Plugins will quickly be something of the prior. The Definitive consultant to HTML5 Video is the 1st authoritative ebook on HTML5 video, the hot net general that permits browsers to help audio and video parts natively. This makes it really easy for internet builders to submit audio and video, integrating either in the normal presentation of websites. for instance, media components may be styled utilizing CSS (style sheets), built-in into SVG (scalable vector graphics), and manipulated in a Canvas. The booklet bargains thoughts for supplying accessibility to media components, allowing constant dealing with of different representations of media assets.

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Extra resources for The Definitive Guide to HTML5 Video

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Opera has a bug introduced through use of the @poster attribute in that the percentage-scaled video refuses to display at all (the dimensions of the invisible video are 253px by 548px). However, the explicitly scaled video appears normally. Obviously, providing explicit @width and @height in pixels is a means to overcome the Opera poster bug. So, what happens when you provide @width and @height attribute values that do not match the aspect ratio of the video resource? Listing 2–10 has an example.

The @controls attribute is a boolean attribute. If specified without @autoplay, the controls are displayed either always (as in Safari and Chrome), or when you mouse over and out of the video (as in Firefox), or only when you mouse over the video (as in Opera and IE). Listing 2–11 has an example use of @controls with an Ogg video. Figure 2–9 shows what the example looks like in the browsers with a video width of 300px. Listing 2–11. info CHAPTER 2 ■ AUDIO AND VIDEO ELEMENTS Figure 2–9. A

It has binaries for all major platforms. Even if you have an exotic platform, you pretty likely can make it work by compiling from source code. Alternative open-source encoding software with a GUI include Handbrake 10 and VLC11. We will not look at these encoding tools, but focus on FFmpeg instead. Should you use one of those GUI tools, it is still instructive to read about the profiles and presettings that FFmpeg uses for a better understanding of encoding options. Let’s assume you have a video file as a result of extracting video from a digital video camera.

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The Definitive Guide to HTML5 Video by Silvia Pfeiffer


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