Can I get the wave infomation as an array after decode without play the music?

[zeroxer]

Hi~
I'm looking a way to extract the mucis/sound wave info into a int array.
I want to know, can I use miniaudio to get the music wave data?
I have try this which I don't it's right or not.

void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uint32 frameCount)
{
    ma_decoder* pDecoder = (ma_decoder*)pDevice->pUserData;
    if (pDecoder == NULL) {
        return;
    }

    ma_uint64 framesRead = ma_decoder_read_pcm_frames(pDecoder, pOutput, frameCount);
    int index = 0;
    int* tempArray = (int *)pOutput;

    while (index < framesRead)
    {
        std::cout << "\t" << *(tempArray)/48000.0f << "\t";
        tempArray++;
        index++;
    }

    (void)pInput;
}

Can I decode the music without playing it?

[mackron]

Can I decode the music without playing it?

Absolutely. Just use ma_decode_file() or ma_decode_memory():

ma_decoder_config audioConfig = ma_decoder_config_init(MY_FORMAT, MY_CHANNELS, MY_SAMPLE_RATE);
ma_uint64 frameCount;
void* pAudioData;
result = ma_decode_file("my_file.wav", &audioConfig, &frameCount, &pAudioData);
if (result != MA_SUCCESS) {
    /* Error */
}

/* At this point the audio data will be in the format you specified in audioConfig. */

You set audioConfig to the audio format you want - just replace MY_FORMAT, etc. to whatever you want. If you need more flexibility you need to use the lower level decoding APIs. Free the pAudioData pointer with ma_free()

You don't need to create a device if you just want to decode audio data from a file.

[zeroxer]

Very thanks! I'll try it.