int AFsetFileType(const char String)
Set the input audio file type
This routine sets the audio file type. Normally, the file type is checked when opening an input audio file. Explicitly setting the audio file type bypasses the need to check the file header for file type match.
"auto" - determine the input file type from the file header "AU" or "au" - AU audio file "WAVE" or "wave" - WAVE file "AIFF" or "aiff" - AIFF or AIFF-C sound file "noheader" - headerless (non-standard or no header) audio file "SPHERE" - NIST SPHERE audio file "ESPS" - ESPS sampled data feature file "IRCAM" - IRCAM soundfile "SPPACK" - SPPACK file "INRS" - INRS-Telecom audio file "SPW" - Comdisco SPW Signal file "CSL" or "NSP" - CSL NSP file "text" - Text audio file (with header)
If the input string contains has a leading '$', the string is assumed to specify the name of an environment variable after the '$'. This routine uses the value of this environment variable to determine the parameters. For instance, if this routine is called as AFsetFileType("$AF_FILETYPE"), this routine would look for the parameter string in environment variable AF_FILETYPE.
P. Kabal / Revision 1.25 2020-11-23