#ifndef DEPENDENCY_AUDIO_DECODE_MP3
// Stubs:
//(none required)
#else

extern "C" {
#    ifdef QB64_BACKSLASH_FILESYSTEM
#        include "src\\minimp3.h"
#    else
#        include "src/minimp3.h"
#    endif
}

snd_sequence_struct *snd_decode_mp3(uint8 *buffer, int32 bytes) {

    mp3_decoder_t mp3;
    mp3_info_t info;
    memset(&info, 0, sizeof(mp3_info_t));

    unsigned char *stream_pos;
    int bytes_left;
    int bytes_read;

    int sample_buffer_allocated_bytes = 2000000;
    int16 *sample_buffer = (int16 *)malloc(2000000);
    int16 *sample_buffer_offset;

    bytes_left = bytes;
    stream_pos = (unsigned char *)buffer;

    mp3 = mp3_create();

    int bytes_out = 0;

    int firstTry = 1;

    sample_buffer_offset = sample_buffer;
mp3getmore:
    bytes_read = mp3_decode((void **)mp3, stream_pos, bytes_left, sample_buffer_offset, &info);
    if (firstTry == 1 && info.audio_bytes <= 0) {
        free(sample_buffer);
        return NULL;
    }
    firstTry = 0;
    bytes_left -= bytes_read;
    stream_pos += bytes_read;
    sample_buffer_offset = (int16 *)(((uint8 *)sample_buffer_offset) + info.audio_bytes);
    bytes_out += info.audio_bytes;

    if (bytes_out + 1000000 > sample_buffer_allocated_bytes) {
        sample_buffer_allocated_bytes += 1000000;
        sample_buffer = (int16 *)realloc(sample_buffer, sample_buffer_allocated_bytes);
        sample_buffer_offset = (int16 *)(((uint8 *)sample_buffer) + bytes_out);
    }

    if (bytes_left > 0 && bytes_read != 0)
        goto mp3getmore;

    // attach bufout to new sequence
    static int32 seq_handle;
    seq_handle = list_add(snd_sequences);
    static snd_sequence_struct *seq;
    seq = (snd_sequence_struct *)list_get(snd_sequences, seq_handle);
    memset(seq, 0, sizeof(snd_sequence_struct));
    seq->references = 1;
    seq->data = (uint16 *)sample_buffer;
    seq->data_size = bytes_out;
    seq->channels = info.channels;
    seq->endian = 0; // native
    seq->is_unsigned = 0;
    seq->sample_rate = info.sample_rate;
    seq->bits_per_sample = 16;

    return seq;
}

#endif