4
Table Of Contents
- Compressor 4 User Manual
- Contents
- Welcome to Compressor
- Getting Started Quickly
- Ways to Use Compressor
- The Basic Transcoding Workflow
- The Compressor Interface
- Compressor Windows and the Transcoding Workflow
- Creating and Managing Compressor Layouts
- Working with the Compressor Windows
- Batch Window
- Settings Tab
- Destinations Tab
- Inspector Window
- History Window
- Preview Window
- Apple Qmaster Sharing Window
- Share Monitor
- Droplet Windows
- About Changing Values and Timecode Entries
- Keyboard Shortcuts
- Setting Compressor Preferences
- Importing Source Media Files
- Creating, Previewing, and Modifying Settings
- Finalizing Jobs and Submitting Batches
- Creating AIFF Files
- Creating Common Audio Format Files
- Creating DV Stream Output Files
- Creating Dolby Digital Professional Output Files
- About the Dolby Digital Professional Encoder Pane
- General Information About Creating Dolby Digital Professional Files
- Converting Stereo Audio Files to Dolby Digital Professional Format
- Assigning Files to Surround Sound Channels (Manual Method)
- Assigning Files to Surround Sound Channels (Automatic Methods)
- Assigning Files to Surround Sound Channels with Droplets
- Options for Spatial Mixing
- Creating H.264 for Apple Devices Output Files
- Creating H.264 for Blu-ray Disc
- Creating Image Sequence Files
- Creating MP3 Output Files
- Creating MPEG-1 Output Files
- Common Uses for MPEG-1
- MPEG-1 Specifications
- About the MPEG-1 Encoder Pane
- About the MPEG-1 Video Tab
- About the MPEG-1 Audio Tab
- About System and Elementary Streams
- MPEG-1 Transcoding Workflow
- Configuring the MPEG-1 File Format for Web Use
- Configuring the MPEG-1 File Format for DVD Use
- Creating the MPEG-1 Video for DVD Setting
- Creating the MPEG-1 Audio for DVD Setting
- Optional—Creating an MPEG-1 for DVD Group and Destination
- Creating MPEG-2 Output Files
- Creating MPEG-4 Output Files
- About MPEG-4 Part 2
- About the MPEG-4 Part 2 Encoder Pane
- Using Default MPEG-4 Part 2 Settings
- Customizing MPEG-4 Part 2 Settings
- Audio Podcasting Workflow
- Stage 1: Configuring the MPEG-4 Output for Audio-Only Output
- Stage 2: Including Podcasting Information
- Stage 3: Applying the Setting to a Source Media File’s Target
- Stage 4: Entering Annotations for the Output Media File
- Stage 5: Creating and Configuring Markers for the Output Media File
- Stage 6: Submitting the Job and Verifying the Output Media File
- Adding Additional Settings and Presets
- Creating QuickTime Export Component Files
- Creating QuickTime Movie Output Files
- Adding Filters to a Setting
- Working with Frame Controls
- Adding Geometry Settings
- Adding Actions
- Using the Preview Window
- Creating and Changing Destinations
- Using Droplets
- Apple Qmaster and Distributed Processing
- Distributed Processing Basics
- Basic Components of the Apple Qmaster Distributed Processing System
- Getting Started Quickly Using This Computer Plus
- Getting Started Quickly Using QuickClusters
- The Interfaces in the Apple Qmaster Distributed Processing System
- Apple Qmaster Sharing Window of Compressor
- General Information About Clusters
- Options in the Apple Qmaster Sharing Window of Compressor
- Managed vs. Unmanaged Services
- Turning Cluster Controller Services On or Off
- Using Virtual Clusters to Make the Most of Multicore Computers
- Setting a Service Password for Including a Computer in a Cluster
- Scheduling Service Availability
- Using Cluster Storage
- Defining Ports for Service Advertisements
- Recovery and Failure Notification Features
- Creating Clusters with Apple Qadministrator
- Setting Up for Part-Time Distributed Processing with Shake
- Appendix A: Keyboard Shortcuts
- Appendix B: Solving Problems
- Appendix C: Using the Command Line
DVD, VCD, and CD-ROM
MPEG-1 is the video compression format used for video CD (VCD) titles and is compatible
for use on DVD titles since all DVD players contain the hardware required for MPEG-1
playback. MPEG-1 is commonly used in videos distributed on CD-ROM. Its low bit rate
and small file sizes are useful when you must fit multiple hours of video onto a DVD and
do not require the broadcast quality of MPEG-2 encoding. A DVD can contain a mix of
MPEG-2 and MPEG-1 video.
On the Web
Since MPEG-1 was one of the first widely adopted compression standards, it has an
advantage of being compatible with most media players. This makes MPEG-1 attractive
for use on the web when you need maximum compatibility with relatively high quality.
Audio-Only
You can use MPEG-1 Layer 2 audio compression as an alternative to Dolby Digital
Professional or DTS compression. While there is no Apple setting for MPEG-1 audio-only
files in this release of Compressor, you can easily create a setting yourself. See Configuring
the MPEG-1 File Format for DVD Use for details.
MPEG-1 Specifications
Compressor supports all the MPEG-1 specifications for frame sizes, frame rates, video
encoding, and audio encoding.
MPEG-1 Frame Sizes and Frame Rates
Compressor can produce full frame rate video (25 fps and 29.97 fps for DVD and 23.976 fps,
25 fps, and 29.97 fps for the web) with SIF resolutions dependent on the use.
• Web: 320 x 240
• NTSC: 352 x 240
• PAL: 352 x 288
While the NTSC and PAL resolutions are roughly half the full resolution of MPEG-2 video,
when played on a DVD player they automatically expand to fill the entire screen.
MPEG-1 File Format Specifications
MPEG-1 video encoding uses a process very similar to that used in MPEG2
encoding—many of the same terms and settings apply. In Compressor, the encoding
settings are set as follows.
• Encoding mode: One pass
• GOP structure: Open
• GOP pattern: BBIBBP
182 Chapter 17 Creating MPEG-1 Output Files