This section lists additions, deletions, and corrections to the RealSystem G2 Production Guide for Release 6.1. The printed, PDF, and HTML versions of the Release 6.1 production guide reflect these changes.
RealServer now includes an optional ad streaming feature that allows it to place ads in SMIL presentations. Chapter 9 has been revised to explain how to use ad streaming. Note, however, that ad streaming features first must be configured by the RealServer administrator.
The RealProducer G2 Release 6.1 encoding tools include two new RealAudio codecs:
These codecs provide higher frequency response than the standard RealAudio G2 20 Kbps and 32 Kbps mono codecs. RealProducer users can set these codecs as the defaults when encoding music requiring a high response rate.
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Additional Information |
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See "RealAudio Codecs" for information on all RealAudio codecs. |
RealNetworks encoding tools now use RealVideo SVT as their default codec. With Scalable Video Technology, a high frame rate clip can scale down its frame rate on slower machines.
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Additional Information |
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See "Scalable Video Technology". |
The RealPlayer G2 preferences window has an option to enable captions for the hearing-impaired. You write the captions as a RealText clip. The section "Displaying Captions for the Hearing Impaired" explains how you then use SMIL to turn captions on or off based on the viewer's preference.
A reliable=true
option ensures that images in SMIL presentations are transmitted to RealPlayer under extremely adverse network conditions. See "Ensuring Reliable Image Transmission".
The broadcasting chapter includes a new section, "Using SMIL with a Broadcast", about using a SMIL file when broadcasting. This section explains how to use the wallclock
option to synchronize multiple broadcast streams.
The RealFlash Bandwidth Tuner and RealFlash Bit Rate Calculation Spreadsheet have been removed from the HTML version of the production guide. They are now available as part of the RealSystem G2 Authoring Kit, available through registration at http://www.real.com/products/tools/authkit/index.html.
The section on bundling RealPlayer presets for download has been removed from the chapter on delivering presentations. See the RealPlayer G2 Manual or online help for information about bundling presets.
Previously, Chapter 5 stated that RealFlash supported Flash 3.0 features with the exception of transparency. This is not correct. RealFlash does not support most Flash 3.0 features, including transparency and Alpha channels. Flash 3.0 morphing ("shape tweening") is supported but should be used in limited instances. Although you can use Flash 3.0 to prepare RealFlash clips, you must create a Shockwave Flash 2.0 file when exporting animation.
For presentations embedded in a Web page, the NOLABELS
option of the <EMBED>
and <OBJECT>
tags works only for RealPlayer 5.0. It does not affect RealPlayer G2.