Play an mp3 with SDL2

gistfile1.c

#include "SDL2/SDL.h"
#include "SDL2/SDL_mixer.h"

static const char *MY_COOL_MP3 = "cool_tunes.mp3";

int main(int argc, char **argv) {
    int result = 0;
    int flags = MIX_INIT_MP3;

    if (SDL_Init(SDL_INIT_AUDIO) < 0) {
        printf("Failed to init SDL\n");
        exit(1);
    }

    if (flags != (result = Mix_Init(flags))) {
        printf("Could not initialize mixer (result: %d).\n", result);
        printf("Mix_Init: %s\n", Mix_GetError());
        exit(1);
    }

    Mix_OpenAudio(22050, AUDIO_S16SYS, 2, 640);
    Mix_Music *music = Mix_LoadMUS(MY_COOL_MP3);
    Mix_PlayMusic(music, 1);

    while (!SDL_QuitRequested()) {
        SDL_Delay(250);
    }

    Mix_FreeMusic(music);
    SDL_Quit();
    return 0;
}

Hi! Can you tell me why this error comes out?
https://imgur.com/UCnTFl0

It is an bug that occurs in version 2.0.2. Downgrade to version 2.0.0 will help.

I keep getting "warning uncorrect audio format " while I tried many settings

//Mix_OpenAudio(44100, AUDIO_S16SYS, 2, 4096);
//Mix_OpenAudio(22050, MIX_DEFAULT_FORMAT, 2, 4096);
if (Mix_OpenAudio(44100, AUDIO_S32SYS, 2, 1024) == 1)

my mp3 load fine under windows and in audacity/vlc...

why is it up to the programmer to make the mp3 file fit the library ??? why do I have to guess and adapt my code depending on each mp3 format ? the playing format and the file format should be separated entities made compatible by the engine
what if I have different formats ? this makes no sens at all

I converted the file to OGG with the same settings and it works, mp3 codecs must be broken

Should not you call Mix_Quit () ??

Hi all,
This bug is conclusively linked to calling Mix_Init before Mix_OpenAudio as detailed here:
https://discourse.libsdl.org/t/bug-sdl2-mixer-init-error-format-support-not-available/23705/2
Reverse the order of calls solved my problem

I assume SDL_mixer doesn't support iOS' hardware mp3 decoding?

it would be best to get the sample rate best way is to read the first few bytes of the file pretty sure if it is incorrect it can sound slow or too fast

That's don't work here, don't know why. But I can compile it.