==22502== Invalid write of size 1
==22502==    at 0x40BD49E: _gst_parse_yylex (lex._gst_parse_yy.c:1059)
==22502==    by 0x40C4374: _gst_parse__yylex (grammar.y:797)
==22502==    by 0x40C0F6E: _gst_parse__yyparse (grammar.tab.c:1629)
==22502==    by 0x40C4478: _gst_parse_launch (grammar.y:838)
==22502==    by 0x40B6D50: gst_parse_launch (gstparse.c:159)
==22502==    by 0x40B6C7C: gst_parse_launchv (gstparse.c:121)
==22502==    by 0x804B1F1: main (gst-launch.c:603)
==22502==  Address 0x48AAC40 is 16 bytes inside a block of size 18 free'd
==22502==    at 0x401CFCF: free (vg_replace_malloc.c:235)
==22502==    by 0x40BF380: _gst_parse_yyfree (lex._gst_parse_yy.c:2138)
==22502==    by 0x40BEB02: _gst_parse_yy_delete_buffer (lex._gst_parse_yy.c:1726)
==22502==    by 0x40C453A: _gst_parse_launch (grammar.y:845)
==22502==    by 0x40B6D50: gst_parse_launch (gstparse.c:159)
==22502==    by 0x40AD840: gst_parse_bin_from_description (gstutils.c:3151)
==22502==    by 0x463C67E: gsmart_audio_sink_set_property (gsmart-audiosink.c:369)
==22502==    by 0x423267A: g_object_set_property (in /usr/lib/libgobject-2.0.so.0.1000.3)
==22502==    by 0x40BF5DF: gst_parse_element_set (grammar.y:289)
==22502==    by 0x40C1579: _gst_parse__yyparse (grammar.y:581)
==22502==    by 0x40C4478: _gst_parse_launch (grammar.y:838)
==22502==    by 0x40B6D50: gst_parse_launch (gstparse.c:159)