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iff(4)									iff(4)

NAME    [Toc]    [Back]

     iff, 8svx - Amiga IFF/8SVX	Audio File Format

SYNOPSIS    [Toc]    [Back]

     #include <dmedia/audiofile.h>

DESCRIPTION    [Toc]    [Back]

     The Audio File Library currently supports 13 of the commonly found	audio
     file formats, i.e., is able to recognize, read, and write sample data and
     header information	to and from files in these formats.  It	is important
     not to confuse sample or audio data formats with file formats.  The
     former refers to the bit-wise organization	of the sound samples in	the
     file, i.e., whether the format is 8-bit integer or	16-bit unsigned, etc.
     Audio file	format refers to the structure of the audio file header, the
     chunk of on-disk data which preceeds the samples and which	provides
     information about the file	to the audio program.  A single	audio file
     format may	support	a large	variety	of sample formats.

     The Amiga IFF/8SVX	File Format (iff) is used primarily on Amiga
     computers.	 It consists of	a variable-length header followed by a
     contiguous	block of binary	data representing the sound samples.
     Occasionally, additional chunks of	non-audio information will be placed
     after the sound sample block.


     Sample Formats:
	  Two's	complement integer only.

     Sample Widths:
	  8-bit	only (for now).

     Byte Orders:
	  Always bigendian.

     Channel Counts:
	  Monaural files only (for now).

     Compression Formats:
	  The only available compression, Fibonacci-delta encoding, is not
	  currently supported by the Audio File	Library.


     IFF/8SVX file headers can contain additional information.

     Instrument	Configurations:
	  None supported.

	  None supported.

									Page 1

iff(4)									iff(4)

     Miscellaneous Chunks:

	       AF_MISC_COPY	       copyright string

	       AF_MISC_AUTH	       author string

	       AF_MISC_NAME	       name string

	       AF_MISC_ANNO	       annotation (comment) string

SEE ALSO    [Toc]    [Back]

     afInitFileFormat(3dm), afGetFileFormat(3dm), afIntro(3dm),

									PPPPaaaaggggeeee 2222
[ Back ]
 Similar pages
Name OS Title
AFidentifyfd IRIX retrieve the audio file format of a file descriptor / open AFfilehandle
aiff IRIX Audio Interchange File Format
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voc IRIX Creative Voice Audio File Format
smp IRIX Sample Vision Audio File Format
sf2 IRIX SoundFont Compatible Audio File Format
AFinitfilefmt IRIX initialize the audio file format type in an AFfilesetup structure
afInitFormatParams IRIX initialize the audio data format in an AFfilesetup for a specified audio track via dmParams
afSetVirtualFormatParams IRIX set/get the virtual audio data format in an AFfilehandle for a specified audio track via dmParams
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