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SND_Utils.h

/**
 * $Id: SND_Utils.h,v 1.5 2002/12/27 13:10:58 mein Exp $
 *
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * 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. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * 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.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */
#ifndef     SND_UTILS_H
#define SND_UTILS_H

#include "SND_WaveSlot.h"

#ifdef __cplusplus
extern "C"
{ 
#endif

00042 typedef struct
{
      unsigned char     riff[4];
      signed int        size;
      unsigned char     type[4];
} WavFileHeader;

typedef struct
{
      unsigned short    format;
      unsigned short    numberofchannels;
      unsigned int      samplerate;
      unsigned int      bytespersec;
      unsigned short    blockalignment;
      unsigned short    bitrate;
} WavFmtHeader;

typedef struct
{
      unsigned short    size;
      unsigned short    samplesperblock;
} WavFmtExHeader;

typedef struct
{
      unsigned int            Manufacturer;
      unsigned int            Product;
      unsigned int            SamplePeriod;
      unsigned int            Note;
      unsigned int            FineTune;
      unsigned int            SMPTEFormat;
      unsigned int            SMPTEOffest;
      unsigned int            loops;
      unsigned int            SamplerData;
      struct
      {
            unsigned int      Identifier;
            unsigned int      Type;
            unsigned int      Start;
            unsigned int      End;
            unsigned int      Fraction;
            unsigned int      Count;
      } Loop[1];
} WavSampleHeader;

typedef struct
{
      unsigned char     id[4];
      unsigned int      size;
} WavChunkHeader;

/**  
 *    loads a sample and returns a pointer
 */
extern void* SND_LoadSample(char *filename);

extern bool SND_IsSampleValid(const STR_String& name, void* memlocation);
extern unsigned int SND_GetSampleFormat(void* sample);
extern unsigned int SND_GetNumberOfChannels(void* sample);
extern unsigned int SND_GetSampleRate(void* sample);
extern unsigned int SND_GetBitRate(void* sample);
extern unsigned int SND_GetNumberOfSamples(void* sample);
extern unsigned int SND_GetHeaderSize(void* sample);
extern unsigned int SND_GetExtraChunk(void* sample);

extern void SND_GetSampleInfo(signed char* sample, SND_WaveSlot* waveslot);

#ifdef __cplusplus
}
#endif

#endif


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