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- /*
- * Copyright 1992, 1993, 1994, Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
- * the contents of this file may not be disclosed to third parties, copied or
- * duplicated in any form, in whole or in part, without the prior written
- * permission of Silicon Graphics, Inc.
- *
- * RESTRICTED RIGHTS LEGEND:
- * Use, duplication or disclosure by the Government is subject to restrictions
- * as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
- * and Computer Software clause at DFARS 252.227-7013, and/or in similar or
- * successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
- * rights reserved under the Copyright Laws of the United States.
- */
- #ifndef __AIFFLIB_H
- #define __AIFFLIB_H
-
- #define AIFF_NOMEM -1 /* too many files open */
- #define AIFF_OPENFAILURE -2 /* can't open a file (check errno) */
- #define AIFF_BADFD -3 /* bad file descriptor */
- #define AIFF_BADDATASIZE -4 /* AIFF file has invalid data size */
- #define AIFF_BADHEADER -5 /* AIFF file has a bad header */
- #define AIFF_NOTAIFF -6 /* doesn't appear to be AIFF file */
- #define AIFF_NOFORMCHUNK -7 /* can't find the FORM header */
- #define AIFF_BADCHUNK -8 /* file is corrupt */
- #define AIFF_WRITEFAILURE -9 /* can't write to file */
- #define AIFF_PARAMSFIXED -10 /* can't change audio parameters */
- #define AIFF_BADCHANNELS -11 /* unsupported number of channels */
- #define AIFF_BADWIDTH -12 /* unsupported sample width (bits) */
- #define AIFF_BADRATE -13 /* unsupported sample rate */
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- typedef int AIFFfile;
-
- /* all the functions returning int return -1 on error and set AIFFerrno */
-
- AIFFfile AIFFopen(const char* filename, const char* dir);
- int AIFFclose(AIFFfile fd);
-
- /* accepts and returns number of samples not bytes */
- int AIFFwrite(AIFFfile fd, const void* buf, unsigned nsamp);
- int AIFFread(AIFFfile fd, void* buf, unsigned nsamp);
- int AIFFgetlength(AIFFfile fd);
-
- int AIFFgetchannels(AIFFfile fd); /* returns 1 or 2 */
- int AIFFgetwidth(AIFFfile fd); /* returns 8, 16, or 24 */
- int AIFFgetrate(AIFFfile fd); /* returns 48000, 44100, 32000, etc. */
- int AIFFsetchannels(AIFFfile fd, int channels); /* takes 1 or 2 */
- int AIFFsetwidth(AIFFfile fd, int width); /* takes 8, 16, or 24 */
- int AIFFsetrate(AIFFfile fd, int rate); /* takes 48000, 44100, etc. */
-
- /*
- * functions to convert AL defines (AL_RATE_48000, AL_STEREO, etc.) to
- * real numbers (48000, 2, etc.)
- */
- int CONVERTchannelstoAL(int nchannels);
- int CONVERTwidthtoAL(int width);
- int CONVERTratetoAL(int rate);
- int CONVERTALtochannels(int ALnchannels);
- int CONVERTALtowidth(int ALwidth);
- int CONVERTALtorate(int ALrate);
-
- extern int AIFFerrno;
-
- void AIFFerror(const char *s);
- char* AIFFstrerror(int err);
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif
-
-