QSoundEffect memory usage over time

qtbug64407_QSoundEffect-leak.tar.gz

A QSoundEffect initialized on the heap and loaded with a wav file, but never played, can slowly allocate memory without freeing the corresponding memory.

This issue can be observed in the long term. In run times as short as 5 minutes, the memory requested may be less than what the operating system has allocated to the process. A detailed observation can be made with massif.

$ valgrind --tool=massif --time-unit=ms ./sound-effect-leak

Attachment includes massif.out, ms_print output, sample wav, main.cpp, .pro file