instparamwrite.c 1.41 KB
/*
	Audio File Library

	Copyright 2000, Silicon Graphics, Inc.

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License as
	published by the Free Software Foundation; either version 2 of
	the License, or (at your option) any later version.

	This program is distributed in the hope that it will be
	useful, but WITHOUT ANY WARRANTY; without even the implied
	warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
	PURPOSE.  See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public
	License along with this program; if not, write to the Free
	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	MA 02111-1307, USA.
*/

#include <stdio.h>

#include <audiofile.h>

main (int argc, char **argv)
{
	AFfilehandle	file;
	AFfilesetup	setup;
	AUpvlist	list;

	if (argc != 2)
	{
		fprintf(stderr, "usage: instparamwrite filename\n");
	}

	setup = afNewFileSetup();
	afInitFileFormat(setup, AF_FILE_AIFFC);

	file = afOpenFile(argv[1], "w", setup);
	if (file == AF_NULL_FILEHANDLE)
	{
		fprintf(stderr, "could not open file %s for writing", argv[1]);
	}

	afFreeFileSetup(setup);

	/* Set the base note to a 'D.' */
	afSetInstParamLong(file, AF_DEFAULT_INST, AF_INST_MIDI_BASENOTE, 50);

	/* Detune down by 30 cents. */
	afSetInstParamLong(file, AF_DEFAULT_INST, AF_INST_NUMCENTS_DETUNE, -30);

	afCloseFile(file);
}