在C中读取wav文件的左右声道？

#include <stdio.h>
#include <stdint.h>

typedef struct {
    char chunkID[4];
    uint32_t chunkSize;
    char format[4];
    char subchunk1ID[4];
    uint32_t subchunk1Size;
    uint16_t audioFormat;
    uint16_t numChannels;
    uint32_t sampleRate;
    uint32_t byteRate;
    uint16_t blockAlign;
    uint16_t bitsPerSample;
    char subchunk2ID[4];
    uint32_t subchunk2Size;
} WavHeader;

int main() {
    FILE* file = fopen("audio.wav", "rb");
    if (file == NULL) {
        printf("Failed to open file.\n");
        return 1;
    }

    WavHeader header;
    fread(&header, sizeof(WavHeader), 1, file);

    // Check if the file is in the correct format
    if (header.chunkID[0] != 'R' || header.chunkID[1] != 'I' || header.chunkID[2] != 'F' || header.chunkID[3] != 'F' ||
        header.format[0] != 'W' || header.format[1] != 'A' || header.format[2] != 'V' || header.format[3] != 'E') {
        printf("Invalid WAV file.\n");
        fclose(file);
        return 1;
    }

    // Check if the file has two channels
    if (header.numChannels != 2) {
        printf("The WAV file should have two channels.\n");
        fclose(file);
        return 1;
    }

    // Move the file pointer to the start of audio data
    fseek(file, header.subchunk1Size + sizeof(WavHeader), SEEK_SET);

    // Read audio data
    int16_t* audioData = (int16_t*)malloc(header.subchunk2Size);
    fread(audioData, header.subchunk2Size, 1, file);

    // Separate left and right channels
    int16_t* leftChannel = (int16_t*)malloc(header.subchunk2Size / 2);
    int16_t* rightChannel = (int16_t*)malloc(header.subchunk2Size / 2);
    for (int i = 0; i < header.subchunk2Size / 4; i++) {
        leftChannel[i] = audioData[i * 2];
        rightChannel[i] = audioData[i * 2 + 1];
    }

    // Process left and right channels as needed

    // Clean up
    free(audioData);
    free(leftChannel);
    free(rightChannel);
    fclose(file);

    return 0;
}