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Apple CompressorCompressor 3 Quick-Reference Guide [Book]

By Brian Gary - Peachpit Press (2007) - Paperback - 209 pages - ISBN 032151422X

Whether you're distributing dailies, authoring a commercial DVD, or prepping video clips for the Web, Compressor is essential for creating quality digital content. In this quick-reference guide, professional filmmaker Brian Gary reveals essential techniques for audio and video compression. Learn timesaving batch-encoding and test-clip workflows. Import files in Final Cut Pro and QuickTime formats and encode them for authoring in DVD Studio Pro. Use advanced codecs like H.264 to create standa... Read more

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Interface Basics: 1
Importing Footage: 19
Working with Presets: 31
Batch Encoding: 53
Encoding for DVD: 71

 

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doc0

Apple Qmaster 3 and Compressor 3
Distributed Processing Setup

K Apple Inc.

Copyright 2007 Apple Inc. All rights reserved. Your rights to the software are governed by the accompanying software license agreement. The owner or authorized user of a valid copy of Final Cut Studio software may reproduce this publication for the purpose of learning to use such software. No part of this publication may be reproduced or transmitted for commercial purposes, such as selling copies of this publication or for providing paid for support services. The Apple logo is a trademark of Apple Inc., registered in the U.S. and other countries. Use of the keyboard Apple logo (Shift-Option-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. Every effort has been made to ensure that the information in this manual is accurate. Apple is not responsible for printing or clerical errors. Note: Because Apple frequently releases new versions and updates to its system software, applications, and Internet sites, images shown in this book may be slightly different from what you see on your screen. Apple Inc. 1 Infinite Loop Cupertino, CA 950142084 408-996-1010 www.apple.com
Apple, the Apple logo, Bonjour, Final Cut, Final Cut Pro, Final Cut Studio, FireWire, Mac, Mac OS, QuickTime, Shake, Xsan, and Xserve are trademarks of Apple Inc., registered in the U.S. and other countries. Apple Remote Desktop and Finder are trademarks of Apple Inc. AppleCare and Apple Store are service marks of Apple Inc., registered in the U.S. and other countries. Dolby Laboratories: Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, and the doubleD symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works, 19921997 Dolby Laboratories, Inc. All rights reserved. UNIX is a registered trademark of The Open Group. Other company and product names mentioned herein are trademarks of their respective companies. Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Apple assumes no responsibility with regard to the performance or use of these products.

Contents

Preface
Introduction to Distributed Processing Using Distributed Processing to Increase Speed and Efficiency Basic Components of the Apple Qmaster Distributed Processing System QuickClusters Compressor AutoClusters How the Apple Qmaster System Distributes Batches About the Distributed Processing Setup Guide Apple Websites Getting Started Quickly Quick and Easy Distributed Processing Preparing a Network for Distributed Processing The Minimum You Need to Know Using Compressor AutoClusters Other Possible Components of a Distributed Processing Network Sample Setup for Part-Time Processing on Desktop Computers Additional Steps For Part-Time Distributed Processing With Shake The Interfaces The Interfaces in the Apple Qmaster Distributed Processing System Apple Qmaster Pane in System Preferences Apple Qadministrator Client Interfaces: Compressor and Apple Qmaster Batch Monitor

Clusters

When a client sends batches to the Apple Qmaster distributed processing system, all the processing and subsequent moving of any output files is performed by a group of Apple Qmasterconfigured computers called a cluster. You can create one or more clusters of service nodes, with one cluster controller included in each cluster. Each computer in the cluster is connected to the other computers in the cluster through a network connection.

Example of a cluster

Cluster controller

Service node

Note: This illustration provides only one simple example of a cluster. Other possibilities are described in Chapter 2, Preparing a Network for Distributed Processing. Service Nodes The service nodes are where the processing work is done. When you assign a group of service nodes to a cluster, they function as one very powerful computer because all their resources are shared. If one service node is overloaded or otherwise inaccessible, another service node is used. You make a computer available as a service node by configuring it in the Apple Qmaster pane in System Preferences. The simple steps involved in using System Preferences to configure a service node are described in Chapter 4, Creating and Administering Clusters, on page 41. Note: The terms processing and rendering will come up frequently as you read this document. The term processing is used here generically to cover both rendering (for Shake, and other frame-based rendering applications) and encoding (or transcoding or compression) for Compressor. For more information see the Shake User Manual and the Compressor User Manual.
Cluster Controllers The cluster controller software acts as the manager of a cluster. The cluster controller directs the distribution of batches within the cluster. It has the ability to determine the best use of the cluster resources based on work and availability variables. (See How the Apple Qmaster System Distributes Batches, next, for more details.) The cluster controller is responsible for accepting batch submissions, maintaining and managing the batch queue, and doling out the work to the appropriate service node. It also tracks the status of all outstanding batches. You make a computer available as a cluster controller by turning on the clustercontrolling service in the Apple Qmaster pane in System Preferences.

Service node 1

Service node 2

Service node 3

Processed file (frames 1-30) placed in specified destination
In distributing batches, Apple Qmaster uses the technology built in to Mac OS X to locate services in a cluster on the same IP subnet and to dynamically share and receive information. Because the computers can continually transmit their current processing availability status, Apple Qmaster can distribute (load-balance) the workload evenly across the cluster.
About the Distributed Processing Setup Guide
The background information that introduces most of the basic concepts and terms related to using the Apple Qmaster distributed processing system is contained in this preface: Introduction to Distributed Processing. Chapter 1, Getting Started Quickly, on page 15, gets you going with a few very simple steps. Chapter 2, Preparing a Network for Distributed Processing,on page 21, will help you make sure that the network part of your Apple Qmaster system is ready. Chapter 3, The Interfaces, on page 31, introduces each of the applications and utilities included with the Apple Qmaster distributed processing software, and describes when you need to use each of them. Chapter 4, Creating and Administering Clusters, on page 41, tells you how to configure and administer the clusters, and how to submit and monitor the batches that you want to have processed by the clusters. The Appendix, Command-Line Usage, on page 67, explains how you can use the distributed processing system entirely from the command line. While all of the chapters should be useful to administrators, client users may only need to refer to the Compressor User Manual or the Apple Qmaster User Manual, and possibly to the introductory information in this preface, to understand how to use the Apple Qmaster distributed processing system for their purposes. To access the Distributed Processing Setup guide: m Choose Help > Distributed Processing Setup. You can also choose either Help > Apple Qmaster User Manual or Help > Compressor User Manual. Each user manual contains a homepage that provides quick access to various features, including Late-Breaking News. Additionally, a comprehensive bookmark list allows you to quickly choose what you want to see and takes you there as soon as you click the link. In addition to these navigational tools, the Help documentation gives you other means to locate information quickly: All cross-references in the text are linked. You can click any cross-reference and jump immediately to that location. Then, you can use the navigation Back button to return to where you were before you clicked the cross-reference. The table of contents and index are also linked. If you click an entry in either of these sections, you jump directly to that section of Help. You can also use the Find dialog to search the index or text for specific words or phrases.

Quick and Easy Distributed Processing
The steps below describe the simplest and quickest way to start using distributed processing. Step 1: Install the software Install the appropriate software on the computers you want to include in your distributed processing network. Each computer in the network will require Apple Qmaster and/or Compressor software. To install the software: 1 Make sure the client software is on at least one computer in your network. In order to submit jobs and batches to the distributed processing system, you will need to run client (submission) software (either Compressor or Apple Qmaster). If you are reading this, you have probably already installed one or both of these. For further information, see the installation booklet that came with either of these applications. 2 Install Apple Qmaster software on each computer you want to use for distributed processing. (All computers must be on the same subnet.) By default, the Final Cut Studio installer will install Apple Qmaster software necessary for distributed processing.
However, in most standard distributed processing networks, you will need to install Apple Qmaster software on every computer in the network. You can use the standalone Apple Qmaster Node Installer to install the Apple Qmaster software on additional computers on your network. a Locate the folder containing the Apple Qmaster software: If you are using Compressor, insert the Final Cut Studio installation disc and locate the Apple Qmaster Node Installer package (AppleQmasterNode.mpkg). If you are using Shake, insert the Shake 4 installation disc and locate the Apple Qmaster Node Installer package (AppleQmasterNode.mpkg). b Do one of the following: Double-click the AppleQmasterNode.mpkg installer package, and follow the onscreen instructions. By default, this installer will install all the necessary Apple Qmaster software. Install Apple Qmaster software from the command line. See Installing Apple Qmaster from the Command Line on page 67 for more information.
About the Compressor Service Sharing Pane
Both the Final Cut Studio installer and the Apple Qmaster Node Installer include the Compressor Service Sharing pane, in which you can quickly set up the computer as an unmanaged service node. Selecting the Yes option in this pane is the first of two steps in setting up AutoClusters in Compressor. An AutoCluster is a temporary QuickCluster which you create automatically when you submit a batch. For more information about AutoClusters, see Using Compressor AutoClusters on page 23. Note: You can change any of these settings at a later time in the Apple Qmaster pane in System Preferences. If you are unsure which role each computer will play in your network, just install the Apple Qmaster software on each computer in your network. You can sort out the details later. See Basic Components of the Apple Qmaster Distributed Processing System on page 6 for additional information on what roles individual computers can play in the distributed processing system.

Leave the Cluster menu set to the default This Computer setting, and click the Include unmanaged services on other computers checkbox. For more information on this option, see Using Compressor AutoClusters on page 23. b In the Apple Qmaster window, click the Submit To pop-up menu and choose the cluster you created in Step 2.
2 Click Submit. The distributed processing system processes the batch.
For more advanced information on creating and controlling clusters and services see any of the following: Basic Components of the Apple Qmaster Distributed Processing System on page 6 Sample Setup for Part-Time Processing on Desktop Computers on page 27 The Interfaces in the Apple Qmaster Distributed ProcessingSystem on page 31 Apple Qmaster Pane in System Preferences on page 33 Apple Qadministrator on page 35 An Overview of Configuring a Cluster on page 42 Configuring Service Nodes and Cluster Controllers on page 42 Creating Clusters with Apple Qadministrator on page 50 About QuickClusters on page 53 Modifying and Deleting Clusters With Apple Qadministrator on page 58
Preparing a Network for Distributed Processing
A distributed processing network can consist of as few as one or two computers, while a high-volume network may include many computers, an Xserve and Xserve cluster nodes in a rack, and high-speed networking infrastructures.
You can scale up a distributed processing system as your workload demands by adding features and devices to the network that supports it. This chapter helps you prepare your network by describing the following: The Minimum You Need to Know (p. 21) Using Compressor AutoClusters (p. 23) Sample Setup for Part-Time Processing on Desktop Computers (p. 27)
The Minimum You Need to Know
The following are the basic rules for setting up a distributed processing network: A cluster must contain one (and only one) computer acting as the cluster controller, and at least one computer acting as the service node. (These two can be the same computer, as shown next in Example of a Minimal Distributed Processing Network.) The client computers and the computers in any cluster that supports them must be on the same network. The network must support the Apple networking technology built in to Mac OS X. All the computers in a cluster need Read and Write access to any computers (or storage devices) that will be specified as output destinations for files.

Step 1: Creating Service Nodes During Installation
Both the Final Cut Studio installer and the Apple Qmaster Node Installer include the Compressor Service Sharing pane, in which you can quickly set up the computer as an unmanaged Apple Qmaster service node, which is essentially a free agent processing slave, available on the network for any computer which requests its services.
If you select Yes in this pane, the Apple Qmaster pane in System Preferences will be configured as follows: Share this computer as: Services only Compressor service: Selected, unmanaged Start Sharing: Started You can change any of these settings at a later time in the Apple Qmaster pane in System Preferences. For more information, see Apple Qmaster Pane in System Preferences on page 33 and Chapter 4, Creating and Administering Clusters, on page 41. Important: While the Final Cut Studio installer requires a separate serial number for each computer, you can use the Apple Qmaster Node Installer (available in the Extras folder) to install the necessary Apple Qmaster software to make any computer on your network into an Apple Qmaster service node.
Step 2: Submitting Compressor Batches for Processing
When you submit a Compressor batch for processing, a dialog appears that allows you to name the batch and select the computers to process the batch. At this point, you can harness the processing power of all the computers you set up as service nodes in Step 1 to complete the batch.
To process the batch using AutoCluster 1 Leave the Cluster pop-up menu set to the default selection (This Computer). 2 Select the Include unmanaged services on other computers checkbox. Compressor and Apple Qmaster will coordinate the distribution of the processing tasks between the available computers and deposit the resulting output files at the location(s) you designated in Compressor.
Other Possible Components of a Distributed Processing Network
There are many ways to expand the capacity of a distributed processing network. You could include any of the following: High-speed switch and cables: A 100BaseT or Gigabit Ethernet switch and compatible cables to allow your data to move over the LAN at maximum speed. Multiple clients: Multiple client computers can use the services of the same cluster. And, you can have multiple client applications on the same client computer, using the same cluster. Multiple clusters: Depending on how extensive your network is and how many clients it needs to serve, you may want to divide up available computers and create more than one cluster to serve various clients. (Users select the cluster they want to send a batch to when they submit the batch.) Multiple service nodes: In general, more service nodes means more processing power. In deciding how many service nodes to have in a cluster, consider the ratio of data movement time to computing time. If the processing demand is greater than the network demand required to move job segments throughout the cluster, as is the case with rendering, more service nodes are a good idea. If the computing load, per job, is closer to the network load, having a smaller number of service nodes per cluster may be more efficient. If you are using the Apple Qmaster distributed processing system with applications other than Shake or Compressor, consult the applications user manual on how to optimize the number of service nodes. Storage device: A storage device, such as a remote disk or group of disk arrays, can be used as cluster scratch storage, which is a place for short-term storage of temporary data generated by the cluster controller, clients, and service nodes. (You set the scratch storage location in the Apple Qmaster pane in System Preferences. See Cluster Storage: Setting a Scratch Storage Location on page 62.) Alternatively, a storage device can be used as a final destination for the files after they are processed. Many of these items are incorporated in the example that follows.

Additional Steps For Part-Time Distributed Processing With Shake
The following additional steps may be necessary for Shake users who cannot consolidate all of the necessary source files (Shake scripts, media files, etc.) on a single cluster storage volume. Step 1: Turn off the UNC (Universal Naming Convention) setting for Shake To make sharing and volume mounting work smoothly in this setup, you need to turn off the Shake UNC setting on each computer. The UNC setting uses the entire file pathname, with the network address, in a convention that starts with //ComputerName/DriveName/path. You dont want Shake to use this filenaming convention because it conflicts with the file sharing and volume mounting used in this setup. Note: All the media volumes created in Step 2 of Configuring Access for Part-Time Distributed Processing, above, should have the same name. The Shake startup.h file In the three steps below, you make this change in a Shake startup.h file. As described in the Shake documentation, the startup.h files, located in the startup directory, are used to customize Shake settings (similar to setting preferences). To turn off the UNC setting, do the following on each of the computers: 1 Log in as the user who will use Shake on the computer. 2 Double-click the Terminal icon in /Applications/Utilities to open a Terminal window. 3 Enter these two command lines in the Terminal window, pressing Return after each command line:
mkdir -p ~/nreal/include/startup/ echo 'script.uncFileNames = 0;' > ~/nreal/include/startup/UNC_off.h
Step 2: Turn Personal File Sharing on On each computer, open System Preferences, click Sharing, and turn on Personal File Sharing. This allows the computers to share the media volumes. Step 3: Mount all the media storage volumes On each computer, log in as the administrator. (The first user account you create when you set up Mac OS X is an administrator account.) Then, on each computer in the group, use the Connect to Server command in the Finders Go menu to mount each media volume.
On each computer, you need to: Enter another computers name in the Connect to Server dialog. Choose the associated media volume (FireWire drive) as the volume you want to mount. Do this until all the computers are mounting all the media volumes in the cluster. Submitting Processing Jobs in the Sample Part-Time Distributed Processing Setup After you finish the final step above, each one of these computers can be used to submit jobs for distributed processing. Important: Because of the way access has been configured in this setup, all file pathnames are conveniently consistent and simple for the purposes of specifying them in Compressor, in Shake scripts, and in Apple Qmaster, assuming that: Users place the source media on a mounted media volume (one of the FireWire drives). Users place the Shake scripts on a mounted media volume. All folders and files on the shared media volumes have Read and Write access enabled for everyone (for Owner, Group, and Others). You can make this access setting by selecting the folder or file and choosing File > Get Info. The above three assumptions are important because they ensure that all the computers have Read and Write access to all the source files and output destinations. Specifying Media File and Script Locations The following additional configuration guidelines apply to anyone using Shake (or any other UNIX-based rendering applications). Specifying the Media File Locations in Shake Scripts In the above setup, all the Shake render scripts should specify their source media (File In) locations and output (File Out) destinations as: /Volumes/MediaDiskName. For example: /Volumes/Media3. Specifying Shake Script Locations in Apple Qmaster In the above setup, all the Shake script locations should be specified in Apple Qmaster as: /Volumes/MediaDiskName/ScriptFilename. For example: /Volumes/Media3/Script.shk.

Note: If a password was created for the cluster controller in System Preferences, a password authentication dialog appears. 3 Optionally, create cluster passwords by clicking the Security tab and selecting and entering the passwords you want. Administrator Password: If you create this password, administrators will need to know it in order to modify this cluster and to view this clusters batches in the Batch Monitor. User Password: If you create this password, users will need to know it in order to submit batches to this cluster and to view those batches in the Batch Monitor.
Step 2: Assign service nodes to the cluster 1 If the Qmaster Service Browser is not already displayed, click the disclosure triangle to see it.
Click this disclosure triangle to see available nodes.
2 Add service nodes to the new cluster by dragging them from the Qmaster Service Browser list at the bottom of the window, up to the clusters service nodes list. If there is a closed lock icon next to a computer name, click the lock and enter the password that was assigned to it in the Apple Qmaster pane in System Preferences. Otherwise, you wont be able to drag that service node into the cluster. Service nodes that are already assigned to another cluster are not shown.
Drag nodes to this list from the Service Browser list. Clicking this disclosure triangle displays each instance of the services set in System Preferences for this node.
Note: The computer names you see at the top level of the Name columns may appear in one of three formats, depending on your configuration: the computer name (for example, Lemur node), the Apple networking name (for example, Lemur-node.local), or the network address for the computer (for example, 02030b-dhcp45.company.com). 3 When you have finished adding service nodes, click Apply. Your cluster is now ready to process batches. Note: Although Apple Qadministrator currently allows you to create a cluster with unmanaged services, valid clusters require at least one managed service for the cluster to be viewable in Apple Qmaster, Compressor, and Batch Monitor.

About QuickClusters

QuickClusters offer a simple and automated way to create and configure clusters, and an alternative to creating and configuring clusters manually with Apple Qadministrator. QuickClusters with enabled unmanaged support will auto-configure themselves and use any available unmanaged services on the same local network (subnet). QuickClusters listen for unmanaged service advertisements and may mark or remember any of them for later use.

Creating QuickClusters

You can create and modify QuickClusters in the Apple Qmaster pane in System Preferences. 1 Open the Apple Qmaster pane in System Preferences.
2 Under Share this computer as, click QuickCluster with services. 3 Optionally, you can configure a number of settings before you turn on the processing services. (See Options in the Apple Qmaster Pane in System Preferences on page 45.) Note: Its easiest to do this now because you cant make these settings when processing services are enabled. To make these settings after services have been enabled, you need to turn off the services, make the settings, and then turn the services on again. 4 Click Start Sharing. This creates a QuickCluster with this computer as its controller.

Cluster Storage: Setting a Scratch Storage Location
By default, the Apple Qmaster distributed processing system saves temporary process files in the /var/spool/qmaster directory on the cluster controller. You can also choose any other location on a local disk. Computers in the cluster will access this location as needed. Selecting a Cluster Storage Location Follow the steps below to change the cluster storage location. To select a new storage location for a cluster: 1 On the cluster controller, open the Apple Qmaster pane in System Preferences. 2 If any Apple Qmaster services are enabled on this computer, click Stop Sharing to temporarily turn them off.
3 Click Advanced to open the Advanced pane.
Click Set to open a dialog for choosing a new storage folder.
4 Click the Set button next to the Cluster Storage field. 5 Navigate to the folder in the dialog, select it, and then click Choose. Note: If you are using the default This Computer setting in the Cluster pop-up menu in the Compressor Batch window, and you choose Cluster Storage as the destination, the output file will be copied to the Source location. Cluster Storage Capacity If you are processing large source media files that exceed the available storage space on the startup disk, you may run out of storage space on that disk. There are a number of things you can do to address this. If cluster storage capacity is low, do any of the following: m Change the cluster storage location to a disk with more free space. For more information, see below. m Configure cluster storage settings to delete files more frequently. For more information, see Adjusting Cluster Storage Settings, below. m Compressor users can set Cluster Options preferences (Compressor > Preferences) to Never copy source to cluster. For more information, see the Compressor User Manual.
Adjusting Cluster Storage Settings Follow the steps below to change scratch storage settings for a cluster. To change cluster storage settings: 1 On the cluster controller, open the Apple Qmaster pane in System Preferences. 2 If any Apple Qmaster services are enabled on this computer, click Stop Sharing to temporarily turn them off. Note: Do not attempt to change the cluster storage settings while the cluster is turned on. 3 Click Advanced to open the Advanced pane.
Enter a new number to change how often cluster storage files are deleted.
Click Stop Sharing to turn off the cluster before changing any settings.

4 Do any of the following: To change the cluster storage location: Click the Set button next to the Cluster Storage field. Navigate to the folder in the dialog, select it, and then click Choose. To change how often cluster storage files are deleted, enter a new number in the Delete Files Older Than _ Days field. 5 Click the Start Sharing button to restart the cluster.
Cleaning Up Cluster Storage If you are using cluster storage, and an error occurs, partial files may be left on the designated cluster storage location. Check the designated cluster storage location to make sure no partial media files are left there. If you find partial media files, delete them and submit the job again. Cluster Storage and QuickTime Reference Movies Strictly speaking, only actual QuickTime movies (not QuickTime reference movies) are supported for distributed processing. If you submit a reference movie for distributed processing, make sure media files specified in the reference movie are available to each node of the Apple Qmaster cluster. In other words, put the media on the shared (cluster storage) volume.
Recovery and Failure Notification Features
The Apple Qmaster distributed processing system has a number of built-in features designed to attempt recovery if there is a problem, and to notify you when it attempts a recovery.

Recovery Features

The recovery actions described next occur automatically if failures occur in the Apple Qmaster distributed processing system. There is no need for you, as the administrator, to enable or configure these features. If a service stops unexpectedly If either the cluster controller service or the processing enabled on a service node stops unexpectedly, the Apple Qmaster distributed processing system restarts the service. To avoid the risk of endless stopping and restarting, the system restarts the failed service a maximum of four times. The first two times, it restarts the service right away. If the service stops abruptly a third or fourth time, the system restarts it only if it had been running for at least 10 seconds before the service stopped. If a batch is interrupted When a service stops suddenly while in the middle of processing an Apple Qmaster batch, the cluster controller resubmits the interrupted batch in a way that prevents the reprocessing of any batch segments that were complete before the service stopped. The cluster controller delays resuming the batch for about a minute from the time it loses contact with the service.

Appendix B Troubleshooting
10 Choose the intended cluster from the Cluster pop-up menu in the lower-left corner of the Batch window. 11 Click Submit. To export a Final Cut Pro sequence as a QuickTime reference movie and submit it to Compressor for distributed processing: 1 Make sure all of the source media files and render files for your Final Cut Pro project are on a hard disk that can be shared (mounted) by all the computers in the cluster that will process the job. (The following instructions use an example of a shared hard disk named Media1.) If you copy all the media files to another hard disk for this purpose, you may need to reconnect the media files in Final Cut Pro before proceeding. Important: The hard disk you use to store the media files may not be a startup disk for any computer in the cluster. 2 In Final Cut Pro, choose File > Export > QuickTime Movie. 3 In the Save dialog, make sure that the Make Movie Self-Contained checkbox is not selected. 4 Save the QuickTime reference movie to the same hard disk (Media1) used to store media files in step 1. 5 Enable file sharing on the computer where the scratch disk (Media1) is located (in the Sharing pane of System Preferences, click Services and then select Personal File Sharing). 6 On each computer in the intended cluster, mount the hard disk (Media1) where the media files and QuickTime reference movie are located (in the Finder sidebar, click Network, navigate to the computer that contains the Media1 disk, click Connect, and select Media1). 7 In Compressor Preferences, specify cluster options settings: a Choose Compressor > Preferences, or press Command-comma ( , ). The Preferences window appears. b Choose Never Copy Source to Cluster from the Cluster Options pop-up menu. 8 Import the QuickTime reference movie into Compressor. (Drag it from the desktop to the Compressor Batch window.) 9 Double-click the file in the Batch window and play it in the Preview window to verify the integrity of the clip. 10 In the Batch window, assign settings and destinations to the selected file as necessary. 11 Choose the intended cluster from the Cluster pop-up menu in the lower-left corner of the Batch window. 12 Click Submit.
QuickTime Reference Movies
Strictly speaking, only actual QuickTime movies (not QuickTime reference movies) are supported for distributed processing. If you submit a reference movie for distributed processing, make sure media files specified in the reference movie are available to each node of the Apple Qmaster cluster. In other words, put the media on the shared (cluster storage) volume.
Cluster Settings for Extended Transcoding Sessions
If you are using Compressor 2 or later for distributed processing, and you anticipate a transcoding session that will last up to seven days or longer, you must make an adjustment in the Advanced section of the Apple Qmaster Preferences Pane. By default, temporary process files may remain on a clusters scratch location for seven days before they are automatically deleted. You can increase this value (the number of days) in the Apple Qmaster pane in System Preferences.

names 51, 59 overview 8 passwords 36, 51 preferences 60 removing computers from 58 renaming 59 status information 60 submitting jobs to 69 cluster user password 51, 61 command line monitoring batches 73 shell commands 68 submitting jobs 69 usage 6776 commands shell 6776 Compressor getting started with 1520 opening 38 computers client. See clients cluster. See clusters desktop rendering environment 2730 media storage volumes 29 names 45, 52 passwords. See passwords removing from clusters 58 shutdown delay 48, 49 storage locations for 25, 6263, 64 turning off Apple Qmaster 58 configuration Apple Qmaster clusters 42 cluster controllers 4250, 6869 service nodes 4250, 6869
data segments 10 deleting items clusters 59 desktop rendering environment 2730 disk arrays 25 distributed processing 56 expanded example 26 installing software 1517, 28 introduction 5 managed services 46 network configuration 2130 part-time 2730 quick and easy steps 1519 simple example 22 unmanaged services 46 distribution, batches 910 domains 60 dual processors 4950
email notification 60, 66
failure notification 60, 66 files log 66 Maya 38 sharing 29 temporary 6263, 64
history, batch 60 History table 60
installing Compressor/Apple Qmaster 28
storage locations for 25, 6263, 64 tracking 7 processing defined 8 desktop processing environment 2730 distributed part-time 2730 expanded network for 26 installing software 1517, 28 quick and easy steps 1519 submitting batches for 30 processing services distributed processing 56 failure alerts 60, 66 running dual instances 4950 service failure 65 time allotted for 48, 49 turning off 48 turning on 43
jobs command line options 69 jobs. See batch jobs
Qadministrator. See Apple Qadministrator Qmaster. See Apple Qmaster qmaster prefs command 68 QuickCluster configuring 1718 QuickClusters about 9, 53 Apple Qadministrator 58 creating 53 enabling unmanaged services 47 extended node clusters 54 managed vs. unmanaged services 46
lock icon 52 log files 66

mail server 60 managed services 46 manual, about 11 Maya batches 38 media storage volumes 29
recovery features 6566 rendering defined 8 Rendering services 43 turning off 48
networks. See Apple Qmaster networks
passwords 6162 administrator. See administrator password cluster administrator 51, 61 cluster controllers 51 clusters 36, 51 cluster users 51, 61 computers 52 service 61, 62 users 51 Personal File Sharing 29 preferences Apple Qmaster. See Apple Qmaster pane in System Preferences clusters 60 processes directing 7
scratch storage 25, 45, 6263, 64 security passwords. See passwords servers See also computers distributed processing and 26 mail 60 rack of 26 service exceptions 66 service nodes adding to clusters 18, 58 assigning to clusters 52 clients as 22 as cluster controllers 22 configuring with Apple Qmaster 4250 configuring with shell commands 6869
creating 43 described 7 dual processors 4950 enabling/disabling 6869 illustrated 7 inaccessible 8 multiple 25 overloaded 8 overview 8 passwords 62 processing services 4748 processing stops unexpectedly 65 turning off processing services 48 turning on processing services 43, 48 Service Options dialog 50 service passwords 61, 62 Services pane 48 Shake installing distributed processing 29 media file locations 30 script locations 30 source files 28 startup.h file 29 UNC setting 29 shell commands 6874 shutdown delay 48, 49 storage devices 25 submitting batches
command line options 69 subnet 7, 10 switches, high-speed 25, 26 System Preferences 17, 3334
tasks 5, 6, 10 See also batches Terminal shell commands 6776
unmanaged services 46 enabling on managed clusters 47 enabling on QuickCluster 47 user mode, Batch Monitor 40 users cluster 51, 61 passwords 51, 61
websites Apple 12 Apple Store 13

XML code 71, 73

doc1

Compressor 3.5 Level One Exam Prep Guide

Compressor 3.5 Level One

Exam Preparation Guide

Updated January 2011

Contents
About this guide....3 Becoming an Apple Certified Pro...3 Exam Details....4 Preparing for the exam...4 Reviewing the Recommended Training Materials...5 Lesson One objectives....6 Lesson Two objectives....7 Lesson Three objectives....7 Lesson Four objectives....8 Lesson Five objectives....9 Lesson Six objectives...10 Lesson Seven objectives...10 Lesson Eight objectives....11 Lesson Nine objectives...12 Lesson Ten objectives....13 Lesson Eleven objectives....14 Lesson Twelve objectives....14 Taking the Compressor 3.5 certification exam...15 Prometric Exam FAQs....16
TM and 2011 Apple Inc. All rights reserved. Other product and company names mentioned herein may be trademarks of their respective companies. Mention of third-party products is for information purposes only and constitutes neither an endorsement nor a warranty. Apple assumes no responsibility with regard to the selection, performance or use of these vendors or products.

About this guide

This guide provides all the information that you need to start preparing for the Compressor 3.5 End User certification exam. From this guide you can:
Learn about Apple Certification. Find out how to take the exam. Locate resources to help you prepare for the exam. Review the range of objectives that the exam may cover. Get a feel for the type of questions that appear on the exam.
Becoming an Apple Certified Pro
The Apple Training & Certification program is designed to keep you at the forefront of Apple technology. Certification creates a benchmark to demonstrate your proficiency in specific Apple technologies and gives you a competitive edge in todays evolving job market.
What is an Apple Certified Pro?
An Apple Certified Pro is a user who has reached the highest skill level in the use and operation of Apples Pro Applications as attested to by Apple.
How do I become an Apple Certified Pro?
To become an Apple Certified Pro, you must pass an online exam administered at an Apple Authorized Training Center (AATC). Some exams, including Aperture, may be taken online by individuals with a promotional code. Level One exams are administered at the end of specific courses at the centers. If you prefer to learn on your own or believe you already have the necessary skills, you may take the Aperture exam online for a fee. Level One certification attests to basic operational knowledge. Level Two certification attests to a deeper understanding of the application. Level Two exams can be taken only after Level One certification is earned. Class attendance is recommended, but not required. Currently, Compressor only offers Level One certification. Compressor 3.5 Level One certification also counts towards Final Cut Studio Master Pro certification. Master Certification recognizes your skills with the entire product suite. Since workflow is such a significant component of Final Cut Studio, the curriculum requires you to earn certification in multiple applications
What are the benefits of being an Apple Certified Pro?
Beside differentiating you as a skilled user of an Apple application, becoming an Apple Certified Pro allows you to leverage the power of the Apple brand. When you pass a Certification exam, you receive an email with a PDF copy of your Apple certificate, along with instructions on how to order a printed or a printed and framed certificate. The email includes LinkedIn, Facebook, and Twitter icons to make it easy for you to share your certification news with your networks on these sites.

You also receive a login for the Apple Certification Records System, where you can:
Update your profile information and opt in to display your Apple Certification(s) on the Apple Certified Professionals Registry. Review your certification progress. Download your certification logo(s) to use on business cards, resumes, websites, and more. Provide access to employers to verify your certifications.

Exam Details

The Compressor 3.5 Level One exam is a computer-based test offered at AATCs and online to eligible individuals who have a promotional code. A promotional code appears later in this guide. To find the closest AATC, please visit training.apple.com/locations. Many AATCs schedule Certification Exam sessions attraining.apple.com/ schedule. If you don't see a session scheduled at your nearest AATC, contact the AATC and they will often schedule a session. Please note thatall AATCs offer all Mac OS X and Pro Apps exams, even if they dont offer the corresponding course. The Compressor 3.5 Level One exam details:
Exam number: 9L0-822 Number of test questions: approximately 37 technical, five demographic (unscored) The exam uses a random pool of multiple-choice, fill-in-the-blank and interactive-media questions. Passing score: 80% (scores are not rounded; you must earn a score of 80% or higher to pass the exam) Details on exam scoring appear at training.apple.com/certification/faq Exam duration: One hour thirty minutes Currently, this exam is only available In English. For details on which exams are available in other languages, please visit training.apple.com/ certification/localized.
The exam timer does not start until you view the first technical question. You may not access any resources or references during the exam.

Preparing for the exam

The three keys to preparing for a certification exam are experience with the application, reviewing the appropriate training materials and studying this Exam Preparation Guide. The following resources may also help you to prepare for your certification exam, as well as expand your general knowledge:

You can order Apple Pro Training Series: Compressor 3.5 (ISBN 0-321-64743-2) with a 30% discount at Peachpit Press by entering
coupon PP-APL-DISC at checkout. Creative Edge, an on-demand digital library, offers subscription access to the Apple Training and Apple Pro Training Series, as well as thousands of other reference videos and books. You can also purchase an ebook version from the iBookstore.
You can order Compressor 3.5 - Apple Pro Video Series from Ripple Training at http://www.rippletraining.com/compressor_3_5_apvs.html. Review the tutorials at www.apple.com/finalcutstudio/resources/. Over five hours of free tutorials are provided by leading training developers. Review the Compressor User Manual at documentation.apple.com. Or choose Help > Compressor User Manual when Compressor is launched. Information on new features is available by choosing Help > New Features when Compressor is launched. Many online resources allow you to ask questions and learn tips and tricks. To access white papers, discussion forums, and learn about many other materials, visit www.apple.com/finalcutstudio/resources/. Review the Apple ProRes white paper, which you can download from: www.apple.com/finalcutstudio/finalcutpro/apple-prores.html. For information on the Apple Pro Training Program, visit training.apple.com. To provide comments and feedback to Apple about Compressor, visit www.apple.com/feedback/compressor.html. Read the late breaking news at www.apple.com/support/manuals/. Many third-party manufacturers create reference, troubleshooting and tutorial DVDs for the novice to power user. A quick Internet search will provide you with dozens of options. If you have any questions, you can post them to the Final Cut Studio Discussion Forum, which is hosted by Apple.
Reviewing the Recommended Training Materials
The book Apple Pro Training Series: Compressor 3.5 (ISBN 0-321-64743-2) and the online videos Compressor 3.5 - Apple Pro Video Series are both designed to prepare you to pass the certification exam. Both the book and the videos are by the same author, Apple Certified Trainer (ACT) Brian Gary. Reviewing these materials is the first place that you should begin to prepare yourself to take the certification exam. However, unlike many of the Apple Pro Training Series titles, the book and videos do not include review questions. Instead, the review questions are included in this guide. So whether you use the book, videos or even if you learn on your own from other resources, you may still prepare yourself for the certification exam by making sure that you can complete all the tasks described in the following sections. You should also make sure that you can answer all the review questions for each section. Answers are provided in the section following the questions. Please note that although this guide divides the
objectives into lessons or knowledge areas, questions are presented randomly during the exam.

Lesson One objectives

After completing Lesson One, Compressor Basics in the Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lessons One and Two of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Learn the basic functions of the Batch window Learn the basic functions of the Preview window Learn the basic functions of the History window Learn the basic functions of the Inspector window Learn the basic functions of the Settings window
Lesson One review questions
After completing Lesson One, you should be able to answer the following questions. 1. What Compressor window displays currently encoding batches? 2. What Compressor window contains the Batch Template Chooser? 3. What do you call a setting once its applied to a job in the Batch window? 4. If you want to toggle between the source and output in the Preview window, what interface item do you interact with? 5. The Source/Setting selection button control what is displayed in the Preview window. 6. The Inspector window displays what types of information? 7. True of False, you can delete the default Compressor window layouts?

Answers

1. The History window. 2. The Batch window. 3. Target. 4. The Source/Setting selection button control that is displayed in the Preview window. 5. Source media information, Annotations, Job Actions, and Setting and Destination parameters. 6. False.

Lesson Two objectives

After completing Lesson Two, Publishing with Batch Templates in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lessons Three, Four and Five of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Understand batch templates Publish to Blu-ray Disc Publish to MobileMe Integrate batch templates with manual workflows
Lesson Two review questions
After completing Lesson Two, you should be able to answer the following questions. 1. What are the four steps when working with Batch Templates? 2. What types of Blu-ray media can Compressor create? 3. When working with the Create Blu-ray Batch Template, what happens after the audio and video assets are created? 4. True or False, you can submit a MobileMe Batch Template without modifying the Job Action? 5. How do you customize a MobileMe Gallery?
1. First, choose a Batch Template. Second, import your Source Media. Third, customize the Job Action and fourth, submit the Batch for encoding. 2. Blu-ray Disc (BD) and AVCHD. 3. False, you need to input a MobileMe username and password in the Job Action tab of the Inspector to submit the batch. 4. You need to login to MobileMe via the Internet and customize from the Gallery page.

Lesson Three objectives

After completing Lesson Three, Batch Encoding in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lessons Six, Seven and Nine of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Export a QuickTime movie from Final Cut Pro
Import QuickTime media to Compressor Export files from Soundtrack Pro
Submit a batch (source media) for encoding Check status and manage the encoding process with Batch Monitor
Lesson Three review questions
After completing Lesson Three, you should be able to answer the following questions. 1. Describe the core Compressor workflow. 2. What are the two ways that you can send a sequence directly from Final Cut Pro to Compressor? 3. You have three jobs in a batch. Two jobs are ready to encode, but the third job is not ready. What is the best course of action? 4. True or False, Compressor will display an alert when there is a potential conflict with an output file name, but if the file name is submitted, it will overwrite the existing file in the output location. 5. Whats the best procedure for splitting tasks, such as Frame Controls and encoding settings in the Batch window?
1. First, import your source media. Second, assign a target. Third, submit the batch for encoding. 2. Select a sequence and choose File > Send to Compressor. Alternatively, you can select a sequence, choose File > Share, select a template, and then click Send to Compressor. 3. Create a new batch (File > New Batch) then cut and paste the job that is not ready into the new batch. Then submit the batch with the jobs that are ready to encode. 4. True. To avoid loss of media, change the name or the destination of the target that is in conflict.

Lesson Four objectives

After completing Lesson Four, Working with Settings, Destinations and Actions in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lessons Eight, Ten and Eleven of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:

Choose encoding settings and create your own Choose and create destinations for encoded media Create Droplets to save time on repetitive tasks Work with Job Actions
Lesson Four review questions
After completing Lesson Four, you should be able to answer the following questions. 1. Whats the fastest way to find settings in the Settings window? 2. True or False, applying a group of settings from the Settings window to a job in the Batch window adds all the settings contained in the group? 3. How do you use Compressor to create a new setting based on existing media? 4. To create a custom destination that utilizes your iDisk, what type should you choose? 5. What are the two ways to create a Droplet? 6. How do you add a Job Action?
1. Use keywords in the search field. 2. True. 3. Drag QuickTime compatible media from the Finder onto the Custom folder in the Settings window. A new preset will be created based on Compressors analysis of the source media. 4. Remote. 5. Choose File > Create Droplet. Alternatively, you can select a setting in the Settings window and click the Save Selection as Droplet button. 6. Select a job in the Batch window and choose the Job Action tab in the Inspector. Then choose an action from the list in the When Job Complete pop-up menu.

Lesson Five objectives

After completing Lesson Five, Test Clip Workflows in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Fifteen of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Use the Preview window to audition input and output media Use real-time previews to audition Filter and Geometry settings Output test clips to preview Encoder and Frame Control settings
Lesson Five review questions
After completing Lesson Five, you should be able to answer the following questions.
1. Name the settings that are NOT displayed in realtime in the Preview window. 2. What side of the Preview window displays the source media? 3. How do you test different sections of the same source media?
1. Frame Controls and Encoder Settings. 2. The left side displays the source; the right side displays the output. 3. Duplicate the source media to create multiple jobs within a single batch, apply in and out points for each job to define different sections, apply the test target(s), and then submit the batch.

Lesson Six objectives

After completing Lesson Six, Converting with Frame Controls in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Twelve of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:

Transcode video formats Resize and retime video from one format to another
Lesson Six review questions
After completing Lesson Six, you should be able to answer the following questions. 1. In what two instances can you employ automatic Frame Controls? 2. To improve encoding times for jobs bound for progressive displays, what Frame Controls option can you turn off? 3. When performing a reverse telecine with Frame Controls how many options do you have to set? 4. How do you slow the speed of a clip using Frame Controls?
1. HD to SD downconversions for SD DVDs or 2. H.264 for Apple Devices. 2. Adaptive Details. 3. One. When selecting Reverse Telecine from the Deinterlace pop-up menu, all other Frame Controls options are dimmed.

Lesson Seven objectives

After completing Lesson Seven, Customizing with Filters in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Thirteen of
Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Apply additive filters Apply corrective filters Apply color filters
Lesson Seven review questions
After completing Lesson Seven, you should be able to answer the following questions. 1. When applying additive filters using the Inspector, its good practice to employ the real-time capabilities of what other window? 2. True or False, you can apply multiple filters to a clip? 3. How do you change the filter render order? 4. What Color filter option retains the source medias color space through encoding?
1. Preview window. 2. True. 3. Drag the applied filters in the Filter pane of the Inspector window to the desired sequence. Filters render in top-down order. 4. Preserve Source.

Lesson Eight objectives

After completing Lesson Eight, Transforming with Geometry Settings in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Fourteen of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Crop movies Convert output movie dimensions Convert output movie aspect ratio Pad output movies
Lesson Eight review questions

After completing Lesson Eight, you should be able to answer the following questions. 1. What are the two places in Compressor where you can set Cropping values? 2. How do you create custom output frame dimensions?
3. What Geometry settings would you use to create a matte or letterbox around the source media in the output movie?
1. In the Preview window, you can manipulate the bounding box manually. In the Geometry pane of the Inspector, you can set the values numerically 2. Enter custom values in the Width and Height fields of the Geometry settings. 3. You would use Padding. Adjust the values to inset the source media.

Lesson Nine objectives

After completing Lesson Nine, Advanced Output in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lessons Sixteen and Seventeen of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Control efficiency and quality in Final Cut Studio with Apple ProRes codecs Create format conversions Work with image sequences Create surround sound assets Work with markers to enhance encoding and navigation Annotate media with metadata Work with closed captions
Lesson Nine review questions
After completing Lesson Nine, you should be able to answer the following questions. 1. What version of Apple ProRes contains an alpha channel? 2. What version of Apple ProRes is good for offline editorial? 3. When downconverting HD media to SD media, its good policy to employ what Compressor feature? 4. When using the QuickTime Video Compression Settings window, which pane is disabled? 5. How do you output image sequences from Compressor at the same frame value as the source media? 6. What are the two types of Surround Sound media that Compressor can produce? 7. What is the default Compressor marker type?
8. How does Compressor differentiate the different marker types in the Preview window timeline? 9. What output formats support annotations? 10. True or False, Compressor can create closed caption files?
1. Apple ProRes 4444. 2. Apple ProRes (Proxy). 3. Frame Controls. 4. The Preview pane because all previewing is handled by Compressors preview window. 5. In the Image Sequence setting, engage the automatic button next to Frame Rate. 6. Dolby Digital Professional and QuickTime Surround 5.1. 7. Compression. 8. Green indicates an Edit/Cut marker. Blue indicates a Compression marker. Purple indicates a chapter marker. Red indicates a podcast marker. 9. H.264 for Apple Devices, MP3, and QuickTime movie. 10. False. Compressor can only attach compliant closed caption files to source media.

Lesson Ten objectives

After completing Lesson Ten, Compressionists Cheat Sheet in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Eighteen of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Three basic rules of compression Encoding tips and techniques
Lesson Ten review questions
After completing Lesson Ten, you should be able to answer the following questions. 1. What is the best practice when attempting to evaluate output media? 2. What types of content are challenging for encoders? 3. True or False, Intrafame codecs produce good editorial media?
1. Compare encoded media only to the source media and not other encodes.
2. Rapid camera movements, fast motion, night scenes, and scenes with wide dynamic range. 3. True. Since every frame of video is represented by an actual frame of video, intraframe codecs produce better results than than interframe codecs when editing with applications such as Final Cut Pro.

Lesson Eleven objectives

After completing Lesson Eleven, Expanding Compressor in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Nineteen of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Enhance Compressor with QuickTime components and plug-ins Use the command line for highly advanced Compressor workflows
Lesson Eleven review questions
After completing Lesson Eleven, you should be able to answer the following questions. 1. Which type of Compressor add-on uses the full range of Compressor features: Plug-in or Component? 2. When working with Compressor in the command line (Terminal) what command displays the available options?
1. Plug-ins use all of the available features. Components are restricted by the options available by the third-party software. 2. help.

Lesson Twelve objectives

After completing Lesson Twelve, Distributed Processing in Apple Pro Training Series: Compressor 3.5 you should be able to complete the following tasks. These objectives are covered in Lesson Twenty of Compressor 3.5 - Apple Pro Video Series. Items are included in the pool of exam questions, drawn randomly from the following objectives:
Install distributed processing in Final Cut Studio Create QuickClusters (render farms) and virtual clusters

Lesson Twelve review questions
After completing Lesson Twelve, you should be able to answer the following questions. 1. What type of Qmaster distributed processing can you engage during the Final Cut Studio installation?
2. True or False, a single computer can be simultaneously a node and a cluster controller? 3. How do you define the number of processors available to Qmaster? 4. When submitting Final Cut Pro sequence source media to a cluster, what criteria must be met on all the nodes?
1. Unmanaged service node. 2. True. When setting up a local cluster with one computer, the machine acts as both the controller and the node(s). 3. In the Qmaster preferences, click the Options for Selected Services button and choose the value from the Instances pop-up menu. 4. Each node must have a licensed copy of Final Cut Pro installed as well as read access to the Final Cut Pro project media.
Taking the Compressor 3.5 certification exam
Most Apple Certification exams must be taken at an Apple Authorized Training Center (AATC) in a proctored setting. To find the closest AATC, visit training.apple.com/aatc. Please note thatall AATCS can offer all Mac OS X and Pro Apps exams, even if they dont offer the corresponding course. However, as a special offer, you may take the Compressor 3.5 certification exam online from home for $75. Please note that you may not use any study materials, including the book, or open any Final Cut Studio application while taking your exam. 1. Go tohttp://ibt.prometric.com/apple on a system that meets the minimum system requirements as indicated on our certification page. If your system does not meet these requirements, you are not eligible to certify online and will instead need to take the exam at an AATC. 2. ClickSecure Sign-In (uses SSL encryption)and log in with your Prometric Prime ID and password. If you dont have an ID and password, follow the instructions to create one. 3. Click Continue to verify your information and access the Candidate Menu page. 4. ClickChange Domainon the left and set the Domain toIT&ProApps (skip to the next step if you do not see a Domain link). 5. In the Candidate Menu page, click Take Test. 6. Enter CompEUEP in the Private Tests box and click Submit. The code is case sensitive.

7. Click Take This Test.

8. Read and Agree/Accept the Certification Program Agreement. 9. Click Continue to skip the voucher then enter your credit card information.

10. Click Begin Test at the bottom of the page. 11. When you finish all the questions, click End Test. If you do not pass the exam, a retake code will be included in your Prometric results email. You need to wait one week before retaking the exam. Retakes also cost $75, so be sure to prepare.

Prometric Exam FAQs

Please visit training.apple.com/certification/faq for a list of Frequently Asked Questions. If you do not find the answer to your question, then email us. Please allow at least two business days for a response.

 

Technical specifications

Full description

Whether you're distributing dailies, authoring a commercial DVD, or prepping video clips for the Web, Compressor is essential for creating quality digital content. In this quick-reference guide, professional filmmaker Brian Gary reveals essential techniques for audio and video compression. Learn timesaving batch-encoding and test-clip workflows. Import files in Final Cut Pro and QuickTime formats and encode them for authoring in DVD Studio Pro. Use advanced codecs like H.264 to create standard- and high-definition content. Compress content for the latest hardware platforms, including AppleTV, iPod, and HD DVD. Export interactive podcasts. Add timecode window burns and animated logos during encoding. Take advantage of job-management strategies, such as job chaining. And save time with Compressor's ability to handle hours of encoding unattended and then notify you by email when it's done. With this guide you'll master the art of minimizing file size and maximizing image quality.

 

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