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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
#ifndef WAV_H
#define WAV_H
//------------------------------------------------------------------------------
// Exported types
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
/// Standard WAV file header information.
//------------------------------------------------------------------------------
typedef struct _WavHeader
{
/// Contains the letters "RIFF" in ASCII form.
unsigned int chunkID;
/// Size of the rest of the chunk following this number.
unsigned int chunkSize;
/// Contains the letters "WAVE".
unsigned int format;
/// Contains the letters "fmt ".
unsigned int subchunk1ID;
/// 16 for PCM. This is the size of the rest of the Subchunk
/// which follows this number.
unsigned int subchunk1Size;
/// PCM = 1 (i.e. Linear quantization). Values other than 1 indicate some
/// form of compression.
unsigned short audioFormat;
/// Mono = 1, Stereo = 2, etc.
unsigned short numChannels;
/// 8000, 44100, etc.
unsigned int sampleRate;
/// SampleRate * NumChannels * BitsPerSample/8
unsigned int byteRate;
/// NumChannels * BitsPerSample/8
unsigned short blockAlign;
/// 8 bits = 8, 16 bits = 16, etc.
unsigned short bitsPerSample;
/// Contains the letters "data".
unsigned int subchunk2ID;
/// Number of bytes in the data.
unsigned int subchunk2Size;
} WavHeader;
#define WAV_HEADER_SIZE 0x100
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern unsigned char WAV_IsValid(const WavHeader *header);
extern void WAV_DisplayInfo(const WavHeader *header);
#endif //#ifndef WAV_H
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