uh lets ignore that I did the last commits from the wrong folder

src/core/audio/audio.cpp

@@ -0,0 +1,111 @@
+#include "audio.h"
+
+Audio::Audio(const std::string path) :path(path) {
+  if (SDL_Init(SDL_INIT_AUDIO) < 0) {
+    std::cerr << "SDL initialization failed: " << SDL_GetError( ) << std::endl;
+    return;
+  }
+
+  if (Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS, 2048) == -1) {
+    std::cerr << "SDL_mixer initialization failed: " << Mix_GetError( ) << std::endl;
+    SDL_Quit( );
+    return;
+  }
+
+  music = Mix_LoadMUS(path.c_str( ));
+  if (!music) {
+    std::cerr << "Failed to load MP3 file: " << Mix_GetError( ) << std::endl;
+    Mix_CloseAudio( );
+    SDL_Quit( );
+    return;
+  }
+};
+
+Audio::~Audio( ) {
+  Mix_FreeMusic(music);
+  Mix_CloseAudio( );
+  SDL_Quit( );
+}
+
+void Audio::StartMusic( ) {
+  if (Mix_PlayingMusic( ) == 0) {
+    //TODO: Get the loop status from the FloatingControls widget and replace the 1
+    Mix_PlayMusic(music, 1);
+  }
+}
+
+void Audio::PauseMusic( ) {
+  if (Mix_PlayingMusic( ) == 1) {
+    Mix_PauseMusic( );
+  }
+}
+
+void Audio::ResumeMusic( ) {
+  if (Mix_PausedMusic( ) == 1) {
+    Mix_ResumeMusic( );
+  }
+}
+
+bool Audio::IsMusicPlaying( ) {
+  return Mix_PlayingMusic( );
+}
+
+std::string Audio::GetTitle( ) {
+  std::cout << Mix_GetMusicTitleTag(music) << std::endl;
+  return Mix_GetMusicTitleTag(music);
+}
+
+std::string Audio::GetArtist( ) {
+  return Mix_GetMusicArtistTag(music);
+}
+
+int Audio::GetMusicPos( ) {
+  return Mix_GetMusicPosition(music);
+}
+
+int Audio::SetMusicPos(int pos) {
+  return Mix_SetMusicPosition(pos);
+}
+
+int Audio::GetMusicDuration( ) {
+  return Mix_MusicDuration(music);
+}
+
+QPixmap Audio::GetAlbumCover( ) {
+  AVFormatContext* fc = avformat_alloc_context( );
+  if (avformat_open_input(&fc, this->path.c_str( ), NULL, NULL) != 0) {
+    SDL_Log("Error opening audio file");
+    return QPixmap( );
+  }
+
+  if (avformat_find_stream_info(fc, NULL) < 0) {
+    SDL_Log("Could not find stream information");
+    return QPixmap( );
+  }
+
+  AVPacket packet;
+  int ret;
+
+  while ((ret = av_read_frame(fc, &packet)) >= 0) {
+    AVStream* stream = fc->streams[packet.stream_index];
+    if (stream->disposition & AV_DISPOSITION_ATTACHED_PIC) {
+      return QPixmap::fromImage(QImage::fromData(reinterpret_cast<const uchar*>(packet.data), packet.size));
+    }
+    av_packet_unref(&packet);
+  }
+
+  avformat_close_input(&fc);
+  avformat_free_context(fc);
+
+  return QPixmap( );
+}
+
+int Audio::GetVolume( ) {
+  return Mix_GetMusicVolume(music);
+}
+
+void Audio::SetVolume(int vol) {
+  if (vol > MIX_MAX_VOLUME)
+    vol = MIX_MAX_VOLUME;
+  Mix_VolumeMusic(vol);
+}

src/core/audio/audio.h

@@ -0,0 +1,53 @@
+#pragma once
+
+extern "C" {
+#include <libavformat/avformat.h>
+}
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_mixer.h>
+#include <SDL2/SDL_image.h>
+#include <QImage>
+#include <QPixmap>
+#include <string>
+
+#include <iostream>
+
+class Audio {
+public:
+  static Audio& getInstance(const std::string path) {
+    static Audio instance(path);
+    return instance;
+  }
+private:
+  Audio(const std::string path);
+
+  const std::string path;
+  const std::string artist;
+  const std::string album;
+
+  Mix_Music* music;
+
+public:
+  ~Audio( );
+
+  Audio(Audio const&) = delete;
+  void operator=(Audio const&) = delete;
+
+  std::string GetTitle( );
+  std::string GetArtist( );
+  std::string GetAlbum( );
+
+  int GetMusicPos( );
+  int GetMusicDuration( );
+  int SetMusicPos(int pos);
+
+  QPixmap GetAlbumCover( );
+
+  void StartMusic( );
+  void PauseMusic( );
+  void ResumeMusic( );
+  bool IsMusicPlaying( );
+
+  void SetVolume(int vol);
+  int GetVolume( );
+};