3
Table Of Contents
- Compressor 3 User Manual
- Contents
- Welcome to Compressor
- Getting Started Quickly
- Ways to Use Compressor
- The Basic Transcoding Workflow
- The Compressor Interface
- Setting Compressor Preferences
- Importing Source Media Files
- Creating, Previewing, and Modifying Settings
- Finalizing Jobs and Submitting Batches
- Creating AIFF 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 DV Stream Output Files
- Creating H.264 for Apple Devices Output Files
- Creating H.264 for DVD Studio Pro 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 Movie Output Files
- Creating QuickTime Export Component 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
- Appendix A: Keyboard Shortcuts
- Appendix B: Solving Problems
- Resources for Solving Problems
- Solutions to Common Problems
- Exporting from Final Cut Pro and Distributed Processing
- QuickTime Reference Movies
- Cluster Settings for Extended Transcoding Sessions
- Cleaning Up Cluster Storage
- Using Apple Qmaster with an NFS Server
- Apple Qmaster Distributed Processing and Xsan
- Compressor Command-Line Usage Requires Login
- Create Blu-ray Disc Job Action
- Contacting AppleCare Support
- Appendix C: Using the Command Line
- Installing Apple Qmaster from the Command Line
- Using the Command Line for Distributed Processing
- Using Scripts to Run Apple Qmaster, Compressor, and Batch Monitor
Important: For maximum compatibility with HD DVD players, avoid setting the maximum
bit rate above 18 Mbps.
You must keep the total of both average and maximum audio and video bit rates under
30 Mbps, the maximum guaranteed transfer rate from high definition DVD players. Because
DVD-compatible audio formats are constant bit rate (CBR), there is no maximum audio
bit rate to worry about.
For example, if you are using AIFF audio at 1.5 Mbps, you should keep both the average
and maximum video bit rates for high definition DVDs under 28.5 Mbps. Typically, your
average bit rate will be lower than this (from 7 Mbps to 15 Mbps). However, your maximum
bit rate must also stay under this number. The 28.0 Mbps maximum bit rate is
recommended to provide an extra margin for error (for example, to accommodate subtitle
streams).
If you are using one of the DVD-compatible compressed audio formats such as Dolby
Digital or MPEG-1/Layer-2, your audio bit rate may be as low as 0.2 Mbps to 0.4 Mbps, in
which case you can set your maximum bit rate about 1 Mbps higher. As a general rule,
set your maximum bit rate at least 1 Mbps higher than your average bit rate, to allow for
bit-rate variability in achieving the goal of constant quality.
H.264 Workflows for DVD
The efficiency and quality of H.264 creates a number of options for DVD producers.
• Because H.264 can deliver high definition (HD) video at standard definition (SD) bit
rates, you can get 90 minutes of HD content on a regular DVD-5 disc, which is playable
on the new HD DVD players.
• Video resolutions supported by SD DVDs are also supported by HD DVDs. This means
that a high definition DVD can use an HD video resolution file for its main content, such
as a feature film, and then use SD video resolution files for additional features like
trailers and a “making of” documentary.
168 Chapter 13 Creating H.264 for DVD Studio Pro Output Files