wave.h

c语言实现读取.wav格式文件的头部

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

// Microsoft wav pcm sound file format. Normal 44 bytes header
typedef struct _tagMsWavPcmHeader44{
unsigned char ChunkID[4]; // "RIFF"; The "RIFF" the mainchunk;
unsigned long ChunkSize; // FileSize - 8; The size following this data
unsigned char Format[4]; // "WAVE"; The "WAVE" format consists of two subchunks: "fmt " and "data"

unsigned char SubChunk1ID[4]; // "fmt "
unsigned long SubChunk1Size; // 16 for PCM. This is the size of the rest of the subchunk which follows this data.
unsigned short AudioFormat; // 1 for PCM. Linear quantization
unsigned short NumChannels; // 1->Mono, 2->stereo, etc..
unsigned long SampleRate; // 8000, 11025, 16000, 44100, 48000, etc..
unsigned long ByteRate; // = SampleRate * NumChannels * BitsPerSample/8
unsigned short BlockAlign; // = NumChannels * BitsPerSample / 8
unsigned short BitsPerSample; // 8->8bits, 16->16bits, etc..

unsigned char SubChunk2ID[4]; // "data"
unsigned long SubChun2Size; // = NumSamples * NumChannels * BitsPerSample / 8. The size of data
} wav_pcm_header44;

void wave_generator(FILE *fpwav, wav_pcm_header44 *phwav);