Help Me

#include <stdio.h>
#include <stdlib.h>
#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <fmodex/fmod.h>

int     main()
{
  SDL_Surface   *ecran;
  SDL_Surface   *viseur;
  SDL_Event event;
  SDL_Rect  position;
  int       continuer;
  FMOD_SYSTEM   *system;
  FMOD_SOUND    *tir;
  FMOD_SOUND    *ambiance;
  FMOD_RESULT   resultat;

  continuer = 1;
  ecran = NULL;
  viseur = NULL;

  FMOD_System_Create(&system);
  FMOD_System_Init(system, 1, FMOD_INIT_NORMAL, NULL);

  resultat = FMOD_System_CreateSound(system, "pan.wav", FMOD_CREATESAMPLE, 0, &tir);
  if (resultat != FMOD_OK)
    {
      fprintf(stderr, "Impossible de lire\n");
      exit(EXIT_FAILURE);
    }

  resultat =  FMOD_System_CreateSound(system, "ambiance.mp3", FMOD_CREATESAMPLE, 0, &ambiance);
  if (resultat != FMOD_OK)
    {
      fprintf(stderr, "Impossible de lire ambiance\n");
      exit(EXIT_FAILURE);
    }

  SDL_Init(SDL_INIT_VIDEO);
  SDL_ShowCursor(SDL_DISABLE);
  ecran = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE | SDL_DOUBLEBUF);
  SDL_WM_SetCaption("Test FMOD Negro !", NULL);
  viseur = IMG_Load("viseur.png");
  //  FMOD_System_PlaySound(system, ambiance, FMOD_CHANNEL_FREE, 0, NULL);
  FMOD_System_PlaySound(system, ambiance, NULL,  0, NULL);
  while(continuer)
    {
      SDL_WaitEvent(&event);
      switch(event.type)
    {
    case SDL_QUIT:
      continuer = 0;
      break;
    case SDL_MOUSEBUTTONDOWN: // Au clic le son est joué
      FMOD_System_PlaySound(system, tir, NULL, 0, NULL);
      break;
    case SDL_MOUSEMOTION:
      position.x = event.motion.x - (viseur->w / 2);
      position.y = event.motion.y - (viseur->h / 2);
      break;
    }
      SDL_FillRect(ecran, NULL, SDL_MapRGB(ecran->format, 0, 0, 0));
      SDL_BlitSurface(viseur, NULL, ecran, &position);
      SDL_Flip(ecran);
    }
  SDL_FreeSurface(viseur);
  SDL_Quit();

  FMOD_Sound_Release(tir);
  FMOD_System_Close(system);
  FMOD_System_Release(system);
  return (EXIT_SUCCESS);
}