Wraps AAC data in MP4 container.
This property is used only if the EncodeFormats.ForrmatToUse property is set to ENCODING_FORMAT_AAC.
This property is the same as entering the -w setting inside the Appendix C - Faac command line.
For further details about encoding in AAC and MP4 format refer to the EncodeAAC class section.
For further information about available encoding formats see the EncodeFormatsMan class.