The sample file 9-twins.wma causes Valgrind to report use of uninitialised value of size 4 at wma_decode_block (bitstream.h:856) and conditional jump or move depends on uninitialised value(s) at wma_decode_block (wmadec.c:380) when executing the command valgrind ./ffmpeg/ffmpeg_g -i 9-twins.wma test.mp3.