Function loadAudioFile

libjamesdsp/JdspImpResToolbox.c:301–347

    }
}
float* loadAudioFile(const char *filename, double targetFs, unsigned int *channels, drwav_uint64 *totalPCMFrameCount, int resampleQuality)
{
    unsigned int fs = 1;
    const char *ext = get_filename_ext(filename);
    float *pSampleData = 0;
    if (!strncmp(ext, "wav", 5) || !strncmp(ext, "irs", 5))
        pSampleData = drwav_open_file_and_read_pcm_frames_f32(filename, channels, &fs, totalPCMFrameCount, 0);
    if (!strncmp(ext, "flac", 5))
        pSampleData = drflac_open_file_and_read_pcm_frames_f32(filename, channels, &fs, totalPCMFrameCount, 0);
    /*if (!strncmp(ext, "mp3", 5))
    {
        drmp3_config mp3Conf;
        pSampleData = drmp3_open_file_and_read_pcm_frames_f32(filename, &mp3Conf, totalPCMFrameCount, 0);
        *channels = mp3Conf.channels;
        fs = mp3Conf.sampleRate;
    }*/
    if (pSampleData == NULL)
    {
        printf("Error opening and reading WAV file");
        return 0;
    }
    // Sanity check
    if (*channels < 1)
    {
        printf("Invalid audio channels count");
        free(pSampleData);
        return 0;
    }
    if ((*totalPCMFrameCount <= 0) || (*totalPCMFrameCount <= 0))
    {
        printf("Invalid audio sample rate / frame count");
        free(pSampleData);
        return 0;
    }
    double ratio = targetFs / (double)fs;
    if (ratio != 1.0)
    {
        int compressedLen = (int)ceil(*totalPCMFrameCount * ratio);
        float *tmpBuf = (float*)malloc(compressedLen * *channels * sizeof(float));
        memset(tmpBuf, 0, compressedLen * *channels * sizeof(float));
        JamesDSPOfflineResampling(pSampleData, tmpBuf, *totalPCMFrameCount, compressedLen, *channels, ratio, resampleQuality);
        *totalPCMFrameCount = compressedLen;
        free(pSampleData);
        return tmpBuf;
    }
    return pSampleData;
}

float* ReadImpulseResponseToFloat
(const char* mIRFileName, int targetSampleRate, int* jImpInfo, int convMode, int* javaAdvSetPtr)