Wired Movies and Sprites

Adding Sample Data in Compressed Form

To add the sample data in a compressed form, you use a QuickTime DataCodec to perform the compression, as shown in Listing 3-10 . You replace the sample utility AddSpriteSampleToMedia call with a call to the sample utility AddCompressedSpriteSampleToMedia.

Listing 10 Adding the key frame sample in compressed form



 
/* AddSpriteSampleToMedia(myMedia, mySample, kSpriteMediaFrameDuration,

            true, NULL);    */

AddCompressedSpriteSampleToMedia(myMedia, mySample, 

            kSpriteMediaFrameDuration, true, zlibDataCompressorSubType, 

            NULL);