wav文件头读取

// An highlighted block
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
 
struct WAV_Format {
	uint32_t ChunkID;	/* "RIFF" */
	uint32_t ChunkSize;	/* 36 + Subchunk2Size */
	uint32_t Format;	/* "WAVE" */
 
	/* sub-chunk "fmt" */
	uint32_t Subchunk1ID;	/* "fmt " */
	uint32_t Subchunk1Size;	/* 16 for PCM */
	uint16_t AudioFormat;	/* PCM = 1*/
	uint16_t NumChannels;	/* Mono = 1, Stereo = 2, etc. */
	uint32_t SampleRate;	/* 8000, 44100, etc. */
	uint32_t ByteRate;	/* = SampleRate * NumChannels * BitsPerSample/8 */
	uint16_t BlockAlign;	/* = NumChannels * BitsPerSample/8 */	
	uint16_t BitsPerSample;	/* 8bits, 16bits, etc. */
 
	/* sub-chunk "data" */
	uint32_t Subchunk2ID;	/* "data" */
	uint32_t Subchunk2Size;	/* data size */
}; 
 
int main(void)
{
	FILE *fp = NULL;
	struct WAV_Format wav;
 
	fp = fopen("test.wav", "rb");
	if (!fp) {
		printf("can't open audio filen");
		exit(1);
	}
 
	fread(&wav, 1, sizeof(struct WAV_Format), fp);
 
	printf("ChunkID t%xn", wav.ChunkID);
	printf("ChunkSize t%dn", wav.ChunkSize);
	printf("Format tt%xn", wav.Format);
	printf("Subchunk1ID t%xn", wav.Subchunk1ID);
	printf("Subchunk1Size t%dn", wav.Subchunk1Size);
	printf("AudioFormat t%dn", wav.AudioFormat);
	printf("NumChannels t%dn", wav.NumChannels);
	printf("SampleRate t%dn", wav.SampleRate);
	printf("ByteRate t%dn", wav.ByteRate);
	printf("BlockAlign t%dn", wav.BlockAlign);
	printf("BitsPerSample t%dn", wav.BitsPerSample);
	printf("Subchunk2ID t%xn", wav.Subchunk2ID);
	printf("Subchunk2Size t%dn", wav.Subchunk2Size);
 
	fclose(fp);
 
	return 0;
}

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