63 lines
No EOL
1.3 KiB
C++
63 lines
No EOL
1.3 KiB
C++
#include "wav.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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bool find_chunk(FILE* fd, const char* magic) {
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char curr[5] = {0};
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while(strcmp(curr, magic) != 0) {
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u32 read = (u32) fread(curr, 1, 4, fd);
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if(read == 0) {
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return false;
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}
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}
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fseek(fd, -4, SEEK_CUR);
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return true;
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}
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WAV* read_wav(const char* file) {
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FILE* fd = fopen(file, "r");
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if(!fd) {
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printf("ERROR: Could not open WAV file: %s\n", strerror(errno));
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return NULL;
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}
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if(!find_chunk(fd, "RIFF")) {
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printf("ERROR: Could not find WAV RIFF chunk.\n");
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return NULL;
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}
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Riff riff;
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fread(&riff, sizeof(Riff), 1, fd);
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if(!find_chunk(fd, "fmt ")) {
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printf("ERROR: Could not find WAV format chunk.\n");
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return NULL;
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}
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Format format;
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fread(&format, sizeof(Format), 1, fd);
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if(!find_chunk(fd, "data")) {
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printf("ERROR: Could not find WAV data chunk.\n");
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return NULL;
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}
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Data data;
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fread(&data, sizeof(Data), 1, fd);
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u8* dataBytes = (u8*) malloc(data.chunkSize);
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fread(dataBytes, 1, data.chunkSize, fd);
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fclose(fd);
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WAV* wav = (WAV*) malloc(sizeof(WAV));
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wav->riff = riff;
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wav->format = format;
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wav->data = data;
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wav->dataBytes = dataBytes;
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return wav;
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} |