Closed Captioning and Real Video Files

Where Microsoft uses ASX metafiles, RealVideo uses SMIL metafiles, which sound a lot happier (the word is actually pronounced "smile") but do pretty much the same thing: point RealPlayer to the video and caption file (called a RealText file with an RT extension). MAGpie makes life easy by producing both the SMIL file and the RT file during the same export procedure. To play the captioned stream, run RealPlayer and load the SMIL file MAGpie just created. You can see the results in Figure 11.13.

Figure 11.13. Since MAGpie creates all necessary files, you're ready to run RealPlayer and play the SMIL file.

Since MAGpie creates the SMIL file automatically, I won't display it here. If you're curious, you should be able to open the file in any text editor. For more information on SMIL files, see the SMIL Web site at www.w3.org/AudioVideo/. WebAIM also explains how to link RealPlayer content at www.webaim.org/techniques/captions/real/3?templatetype=3.