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Hello:
   I call Mix_OpenAudio.
   Then call Mix_ColseAudio().
   Then call Mix_OpenAudio again (then it crashes).

   This is with last versions of SDL (1.2.11) and SDL_mixer (1.2.7) on linux Fedora Core 4 and Windows.
   I recompile SDL_mixer without midi support and then the program ran ok.

   I give you here both the program and the memory report of valgrind (Line 133 of main is the second call to Mix_OpenAudio).

   This bug may have something to do with bug 274.

=========== Crashing PROGRAM ===============


int main(){

  // up SDL
  if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE) != 0) {
    cerr<<"Unable to initialize SDL: "<<SDL_GetError()<<"\n";
    exit(1);
  }
  SDL_EnableUNICODE(1);

  // up the video
  SDL_Surface * screen = SDL_SetVideoMode(640, 480, 8, SDL_HWSURFACE | SDL_DOUBLEBUF);
  if (screen == NULL) {
    fprintf(stderr,"Unable to set video mode: %s\n", SDL_GetError());
    exit(1);
  }

  // up the audio
  if (Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS,int(pow(2,9)))) {
    cleanUp(VIDEO);
    cerr<<"Could not initialize audio system: "<<Mix_GetError()<<"\n";
    exit(1);
  };
  Mix_CloseAudio();
  if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE) != 0) {
    cerr<<"Unable to initialize SDL: "<<SDL_GetError()<<"\n";
    exit(1);
  }
  if (Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS,int(pow(2,9)))) {
    cleanUp(VIDEO);
    cerr<<"Could not initialize audio system: "<<Mix_GetError()<<"\n";
    exit(1);
  };

  return 0;
}


==18245== Memcheck, a memory error detector for x86-linux.
==18245== Copyright (C) 2002-2005, and GNU GPL'd, by Julian Seward et al.
==18245== Using valgrind-2.4.0, a program supervision framework for x86-linux.
==18245== Copyright (C) 2000-2005, and GNU GPL'd, by Julian Seward et al.
==18245== For more details, rerun with: -v
==18245==
==18245== Invalid read of size 4
==18245==    at 0xD6FE69: open_file (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD80EEC: read_config_file (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD81F91: Timidity_Init (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4C594: open_music (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4986C: Mix_OpenAudio (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0x804EBE2: main (sjsound.cpp:133)
==18245==  Address 0x1BBACE10 is 0 bytes inside a block of size 8 free'd
==18245==    at 0x1B909743: free (vg_replace_malloc.c:152)
==18245==    by 0xD70228: free_pathlist (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD7CDDB: Timidity_Close (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)==18245==    by 0xD4DBEA: close_music (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4B1EE: Mix_CloseAudio (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)==18245==    by 0x804EB66: main (sjsound.cpp:128)
==18245==
==18245== Invalid read of size 1
==18245==    at 0xD6FE79: open_file (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD80EEC: read_config_file (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD81F91: Timidity_Init (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4C594: open_music (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4986C: Mix_OpenAudio (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0x804EBE2: main (sjsound.cpp:133)
==18245==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==18245==
==18245== Process terminating with default action of signal 11 (SIGSEGV)
==18245==  Access not within mapped region at address 0x0
==18245==    at 0xD6FE79: open_file (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD80EEC: read_config_file (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD81F91: Timidity_Init (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4C594: open_music (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0xD4986C: Mix_OpenAudio (in /usr/lib/libSDL_mixer-1.2.so.0.2.5)
==18245==    by 0x804EBE2: main (sjsound.cpp:133)
==18245==
==18245== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 64 from 3)
==18245== malloc/free: in use at exit: 1371611 bytes in 2920 blocks.
==18245== malloc/free: 8081 allocs, 5161 frees, 1592297 bytes allocated.
==18245== For counts of detected errors, rerun with: -v
==18245== searching for pointers to 2920 not-freed blocks.
==18245== checked 12428256 bytes.