07-08-2004
Perderabo was right. I was quoting from an old document from an ACM meeting where they were trying to get compression utilities to work on different file formats.
Sorry.
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LEARN ABOUT CENTOS
afinitcompression
AFINITBYTEORDER(3) AFINITBYTEORDER(3)
NAME
afInitCompression - initialize compression for a track in an audio file setup
SYNOPSIS
#include <audiofile.h>
void afInitCompression(AFfilesetup setup, int track, int compression);
PARAMETERS
setup is a valid file setup returned by afNewFileSetup(3).
track specifies a track within the audio file setup. track is always AF_DEFAULT_TRACK for all currently supported file formats.
compression is an identifier specifying the compression type (such as AF_COMPRESSION_G711_ULAW) to be used for audio data in the track.
DESCRIPTION
Given an AFfilesetup structure created with afNewFileSetup(3) and a track identified by track (AF_DEFAULT_TRACK for all currently supported
file formats), afInitCompression initializes the track to the specified compression.
The following compression types are currently supported:
AF_COMPRESSION_NONE
no compression
AF_COMPRESSION_G711_ULAW
CCITT G.711 mu-law encoding
AF_COMPRESSION_G711_ALAW
CCITT G.711 A-law encoding
AF_COMPRESSION_IMA
IMA ADPCM encoding
AF_COMPRESSION_MS_ADPCM
MS ADPCM encoding
AF_COMPRESSION_FLAC
FLAC
AF_COMPRESSION_ALAC
Apple Lossless Audio Codec
ERRORS
afInitCompression can produce the following errors:
AF_BAD_FILESETUP
setup represents an invalid file setup.
AF_BAD_TRACKID
track represents an invalid track identifier.
AF_BAD_COMPTYPE
compression represents an invalid compression type.
SEE ALSO
afNewFileSetup(3), afInitSampleFormat(3)
AUTHOR
Michael Pruett <michael@68k.org>
Audio File Library 0.3.6 03/06/2013 AFINITBYTEORDER(3)