AV Foundation 开发秘籍英文版 Learning AV Foundation.pdf

发布时间：2022-06-21 发布人：admin 分类：说明书资料大小：29.96M 资料格式：pdf 举报版权申诉

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About This eBook

Title Page

Dedication Page

Contents

Foreword

Preface

Audience for This Book

How This Book Is Organized

About the Sample Code

Contacting the Author

Acknowledgments

About the Author

I: AV Foundation Essentials

1. Getting Started with AV Foundation

What Is AV Foundation?

Where Does AV Foundation Fit?

Decomposing AV Foundation

Understanding Digital Media

Digital Media Compression

Container Formats

Hello AV Foundation

Summary

Challenge

2. Playing and Recording Audio

Mac and iOS Audio Environments

Understanding Audio Sessions

Audio Playback with AVAudioPlayer

Building an Audio Looper

Configuring the Audio Session

Handling Interruptions

Responding to Route Changes

Audio Recording with AVAudioRecorder

Building a Voice Memo App

Enabling Audio Metering

Summary

3. Working with Assets and Metadata

Understanding Assets

Creating an Asset

Asynchronous Loading

Media Metadata

Working with Metadata

Building the MetaManager App

Saving Metadata

Summary

Challenge

4. Playing Video

Playback Overview

Playback Recipe

Working with Time

Building a Video Player

Time Observation

Creating a Visual Scrubber

Showing Subtitles

Airplay

Summary

Challenge

5. Using AV Kit

AV Kit for iOS

AV Kit for Mac OS X

First Steps

Control Styles

Going Further

Working with Chapters

Enabling Trimming

Exporting

Movie Modernization

Summary

Challenge

II: Media Capture

6. Capturing Media

Capture Overview

Simple Recipe

Building a Camera App

Summary

Challenge

7. Using Advanced Capture Features

Video Zooming

Face Detection

Machine-Readable Code Detection

Using High Frame Rate Capture

Processing Video

Understanding CMSampleBuffer

Summary

Challenge

8. Reading and Writing Media

Overview

Building an Audio Waveform View

Advanced Capture Recording

Summary

Challenge

III: Media Creation and Editing

9. Composing and Editing Media

Composing Media

Working with Time

Basic Recipe

Introducing 15 Seconds

Building a Composition

Exporting the Composition

Summary

Challenge

10. Mixing Audio

Mixing Audio

Mixing Audio in the 15 Seconds App

Summary

Challenge

11. Building Video Transitions

Overview

Conceptual Steps

15 Seconds: Adding Video Transitions

Summary

Challenge

12. Layering Animated Content

Using Core Animation

Using Core Animation with AV Foundation

15 Seconds: Adding Animated Titles

Preparing the Composition

Summary

Challenge

Index

Code Snippets

About This eBook ePUB is an open, industry-standard format for eBooks. However, support of ePUB and its many features varies across reading devices and applications. Use your device or app settings to customize the presentation to your liking. Settings that you can customize often include font, font size, single or double column, landscape or portrait mode, and figures that you can click or tap to enlarge. For additional information about the settings and features on your reading device or app, visit the device manufacturer’s Web site. Many titles include programming code or configuration examples. To optimize the presentation of these elements, view the eBook in single- column, landscape mode and adjust the font size to the smallest setting. In addition to presenting code and configurations in the reflowable text format, we have included images of the code that mimic the presentation found in the print book; therefore, where the reflowable format may compromise the presentation of the code listing, you will see a “Click here to view code image” link. Click the link to view the print-fidelity code image. To return to the previous page viewed, click the Back button on your device or app.

Learning AV Foundation A Hands-on Guide to Mastering the AV Foundation Framework Bob McCune Upper Saddle River, NJ • Boston • Indianapolis • San Francisco New York • Toronto • Montreal • London • Munich • Paris • Madrid Cape Town • Sydney • Tokyo • Singapore • Mexico City

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed with initial capital letters or in all capitals. The author and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions. No liability is assumed for incidental or consequential damages in connection with or arising out of the use of the information or programs contained herein. For information about buying this title in bulk quantities, or for special sales opportunities (which may include electronic versions; custom cover designs; and content particular to your business, training goals, marketing focus, or branding interests), please contact our corporate sales department at corpsales@pearsoned.com or (800) 382-3419. For government sales inquiries, please contact governmentsales@pearsoned.com. For questions about sales outside the U.S., please contact international@pearsoned.com. Visit us on the Web: informit.com/aw Library of Congress Control Number: 2014944245 Copyright © 2015 Pearson Education, Inc. All rights reserved. Printed in the United States of America. This publication is protected by copyright, and permission must be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458, or you may fax your request to (201) 236-3290. ISBN-13: 978-0-321-96180-8 ISBN-10: 0-321-96180-3 Text printed in the United States on recycled paper at Courier in Westford,

Massachusetts. First printing: October 2014 Editor-in-Chief Mark Taub Senior Acquisitions Editor Trina MacDonald Development Editor Chris Zahn Managing Editor Kristy Hart Project Editor Elaine Wiley Copy Editor Barbara Hacha Senior Indexer Cheryl Lenser Proofreader Katherine Matejka Technical Reviewers Chris Adamson Ryder Mackay Jon Steinmetz Editorial Assistant Olivia Basegio Cover Designer Chuti Prasertsith Senior Compositor Gloria Schurick

I dedicate this book to my loving wife, Linda, who supports me in all my crazy endeavors.

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AV Foundation 开发秘籍英文版 Learning AV Foundation.pdf

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