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e37d67725e
Though documentation and even a comment at the start of Mix_FreeChunk()
state that it's unsafe to free chunk which is still being played, the
function actually contains the code to stop all playback of a chunk which is
being freed. See SDL2_mixer 2.0.0, mixer.c:759:
/* Guarantee that this chunk isn't playing */
SDL_LockAudio();
if ( mix_channel ) {
for ( i=0; i<num_channels; ++i ) {
if ( chunk == mix_channel[i].chunk ) {
mix_channel[i].playing = 0;
mix_channel[i].looping = 0;
}
}
}
SDL_UnlockAudio();
As a result, no special actions are required to stop Mixer playback
before destruction of the Chunks (which is a common case with SDL2pp,
as Chunks may only be constructed after Mixer is created, and are
correspondingly destroyed in reverse order, e.g. before Mixer).