March 2012
Intermediate to advanced
1011 pages
31h 11m
English
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Chapter 28. Video
Basic video playback is performed in a view owned by an MPMoviePlayerController. You’ll need to link to MediaPlayer.framework and import <MediaPlayer/MediaPlayer.h>. There are two relevant classes supplied by the Media Player framework:
- MPMoviePlayerController
Vends and controls a view that plays a movie.
The behavior of this class has changed very greatly from one system version to the next. It is difficult to use it compatibly with multiple system versions. In this chapter, I describe only its current behavior, with no attempt to discuss earlier differences or to advise you on backward compatibility.
- MPMoviePlayerViewController
- Owns an MPMoviePlayerController, and presents its view as a fullscreen view.
A simple interface for trimming video (UIVideoEditorController) is also supplied.
Sophisticated video playing and editing can be performed through AV Foundation. I won’t go deeply into AV Foundation in this book, but I’ll introduce it at the end of this chapter: I’ll talk a little about AVPlayer, an alternative class for playing a movie or a sound, and I’ll provide some code that demonstrates AV Foundation’s video- and audio-editing capabilities.
A mobile device does not have unlimited power for decoding and presenting video in real time. A video that plays on your computer might not play at all on an iOS device. See the “Media Layer” chapter of Apple’s iOS Technology Overview for a list of specifications and limits within which video is eligible for playing. ...
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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.