111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/* $NetBSD: sun.c,v 1.2 2002/01/15 17:01:33 mrg Exp $ */
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/*
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* Copyright (c) 2002 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* XXX this is slightly icky in places...
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*/
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#include <sys/types.h>
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#include <sys/audioio.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libaudio.h"
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/*
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* SunOS/NeXT .au format helpers
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*/
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struct {
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int file_encoding;
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int encoding;
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int precision;
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} file2sw_encodings[] = {
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{ AUDIO_FILE_ENCODING_MULAW_8, AUDIO_ENCODING_ULAW, 8 },
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{ AUDIO_FILE_ENCODING_LINEAR_8, AUDIO_ENCODING_SLINEAR_BE, 8 },
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{ AUDIO_FILE_ENCODING_LINEAR_16, AUDIO_ENCODING_SLINEAR_BE, 16 },
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{ AUDIO_FILE_ENCODING_LINEAR_24, AUDIO_ENCODING_SLINEAR_BE, 24 },
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{ AUDIO_FILE_ENCODING_LINEAR_32, AUDIO_ENCODING_SLINEAR_BE, 32 },
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#if 0
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/*
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* we should make some of these available. the, eg ultrasparc, port
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* can use the VIS instructions (if available) do do some of these
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* mpeg ones.
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*/
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{ AUDIO_FILE_ENCODING_FLOAT, AUDIO_ENCODING_ULAW, 32 },
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{ AUDIO_FILE_ENCODING_DOUBLE, AUDIO_ENCODING_ULAW, 64 },
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{ AUDIO_FILE_ENCODING_ADPCM_G721, AUDIO_ENCODING_ULAW, 4 },
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{ AUDIO_FILE_ENCODING_ADPCM_G722, AUDIO_ENCODING_ULAW, 0 },
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{ AUDIO_FILE_ENCODING_ADPCM_G723_3, AUDIO_ENCODING_ULAW, 3 },
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{ AUDIO_FILE_ENCODING_ADPCM_G723_5, AUDIO_ENCODING_ULAW, 5 },
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#endif
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{ AUDIO_FILE_ENCODING_ALAW_8, AUDIO_ENCODING_ALAW, 8 },
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{ -1, -1 }
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};
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int
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audio_sun_to_encoding(sun_encoding, encp, precp)
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int sun_encoding;
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int *encp;
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int *precp;
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{
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int i;
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for (i = 0; file2sw_encodings[i].file_encoding != -1; i++)
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if (file2sw_encodings[i].file_encoding == sun_encoding) {
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*precp = file2sw_encodings[i].precision;
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*encp = file2sw_encodings[i].encoding;
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return (0);
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}
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return (1);
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}
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int
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audio_encoding_to_sun(encoding, precision, sunep)
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int encoding;
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int precision;
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int *sunep;
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{
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int i;
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for (i = 0; file2sw_encodings[i].file_encoding != -1; i++)
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if (file2sw_encodings[i].encoding == encoding &&
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file2sw_encodings[i].precision == precision) {
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*sunep = file2sw_encodings[i].file_encoding;
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return (0);
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}
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return (1);
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}
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