1 /* ----------------------------------------------------------------------------
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2 * SAM Software Package License
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3 * ----------------------------------------------------------------------------
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4 * Copyright (c) 2011, Atmel Corporation
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6 * All rights reserved.
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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11 * - Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the disclaimer below.
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14 * Atmel's name may not be used to endorse or promote products derived from
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15 * this software without specific prior written permission.
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17 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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20 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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23 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 * ----------------------------------------------------------------------------
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33 /*----------------------------------------------------------------------------
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35 *----------------------------------------------------------------------------*/
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37 /* Standard WAV file header information. */
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38 typedef struct _WavHeader
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40 /* Contains the letters "RIFF" in ASCII form. */
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41 unsigned int chunkID;
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42 /* Size of the rest of the chunk following this number.*/
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43 unsigned int chunkSize;
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44 /* Contains the letters "WAVE".*/
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45 unsigned int format;
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46 /* Contains the letters "fmt ".*/
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47 unsigned int subchunk1ID;
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48 /* 16 for PCM. This is the size of the rest of the Subchunk which follows this number.*/
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49 unsigned int subchunk1Size;
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50 /* PCM = 1 (i.e. Linear quantization). Values other than 1 indicate some form of compression.*/
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51 unsigned short audioFormat;
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52 /* Mono = 1, Stereo = 2, etc.*/
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53 unsigned short numChannels;
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54 /* 8000, 44100, etc.*/
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55 unsigned int sampleRate;
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56 /* SampleRate * NumChannels * BitsPerSample/8*/
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57 unsigned int byteRate;
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58 /* NumChannels * BitsPerSample/8*/
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59 unsigned short blockAlign;
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60 /* 8 bits = 8, 16 bits = 16, etc.*/
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61 unsigned short bitsPerSample;
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62 /* Contains the letters "data".*/
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63 unsigned int subchunk2ID;
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64 /* Number of bytes in the data.*/
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65 unsigned int subchunk2Size;
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69 /*----------------------------------------------------------------------------
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70 * Exported functions
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71 *----------------------------------------------------------------------------*/
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73 extern unsigned char WAV_IsValid(const WavHeader *header);
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75 extern void WAV_DisplayInfo(const WavHeader *header);
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77 #endif //#ifndef WAV_H
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