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NAMEafInitCompression - initialize compression for a track in an audio file setupSYNOPSIS#include <audiofile.h> void afInitCompression(AFfilesetup setup, int track, int compression); PARAMETERSsetup 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. DESCRIPTIONGiven 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
ERRORSafInitCompression 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 ALSOafNewFileSetup(3), afInitSampleFormat(3)AUTHORMichael Pruett <michael@68k.org>
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