1 /* ----------------------------------------------------------------------------
\r
2 * SAM Software Package License
\r
3 * ----------------------------------------------------------------------------
\r
4 * Copyright (c) 2011, Atmel Corporation
\r
6 * All rights reserved.
\r
8 * Redistribution and use in source and binary forms, with or without
\r
9 * modification, are permitted provided that the following conditions are met:
\r
11 * - Redistributions of source code must retain the above copyright notice,
\r
12 * this list of conditions and the disclaimer below.
\r
14 * Atmel's name may not be used to endorse or promote products derived from
\r
15 * this software without specific prior written permission.
\r
17 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
\r
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
\r
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
\r
20 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
\r
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
\r
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
\r
23 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
\r
24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
\r
25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
\r
26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\r
27 * ----------------------------------------------------------------------------
\r
32 /*----------------------------------------------------------------------------
\r
34 *----------------------------------------------------------------------------*/
\r
40 /*----------------------------------------------------------------------------
\r
42 *----------------------------------------------------------------------------*/
\r
44 /* WAV letters "RIFF" */
\r
45 #define WAV_CHUNKID 0x46464952
\r
46 /* WAV letters "WAVE"*/
\r
47 #define WAV_FORMAT 0x45564157
\r
48 /* WAV letters "fmt "*/
\r
49 #define WAV_SUBCHUNKID 0x20746D66
\r
51 /*----------------------------------------------------------------------------
\r
52 * Exported functions
\r
53 *----------------------------------------------------------------------------*/
\r
56 * \brief Check if the header of a Wav file is valid ot not.
\r
58 * \param file Buffer holding the file to examinate.
\r
59 * \return 1 if the header of a Wav file is valid; otherwise returns 0.
\r
61 unsigned char WAV_IsValid(const WavHeader *header)
\r
63 return ((header->chunkID == WAV_CHUNKID)
\r
64 && (header->format == WAV_FORMAT)
\r
65 && (header->subchunk1Size == 0x10));
\r
69 * \brief Display the information of the WAV file (sample rate, stereo/mono
\r
72 * \param header Wav head information.
\r
75 void WAV_DisplayInfo(const WavHeader *header)
\r
77 printf( "Wave file header information\n\r");
\r
78 printf( "--------------------------------\n\r");
\r
79 printf( " - Chunk ID = 0x%08X\n\r", header->chunkID);
\r
80 printf( " - Chunk Size = %u\n\r", header->chunkSize);
\r
81 printf( " - Format = 0x%08X\n\r", header->format);
\r
82 printf( " - SubChunk ID = 0x%08X\n\r", header->subchunk1ID);
\r
83 printf( " - Subchunk1 Size = %u\n\r", header->subchunk1Size);
\r
84 printf( " - Audio Format = 0x%04X\n\r", header->audioFormat);
\r
85 printf( " - Num. Channels = %d\n\r", header->numChannels);
\r
86 printf( " - Sample Rate = %u\n\r", header->sampleRate);
\r
87 printf( " - Byte Rate = %u\n\r", header->byteRate);
\r
88 printf( " - Block Align = %d\n\r", header->blockAlign);
\r
89 printf( " - Bits Per Sample = %d\n\r", header->bitsPerSample);
\r
90 printf( " - Subchunk2 ID = 0x%08X\n\r", header->subchunk2ID);
\r
91 printf( " - Subchunk2 Size = %u\n\r", header->subchunk2Size);
\r