StacktraceTop:gst_caps_subtract (minuend=0x9be15c0, subtrahend=0xa5fe160) at gstcaps.c:1370 gst_caps_is_subset (subset=0x9be15c0, superset=0xa5fe160) at gstcaps.c:1050 gst_caps_is_equal (caps1=0x9be15c0, caps2=0xa5fe160) at gstcaps.c:1087 gst_pad_accept_caps (pad=0x9c69710, caps=0x9be15c0) at gstpad.c:2305 gst_pad_configure_src (pad=0x190, caps=0xa5fe160, dosetcaps=0) at gstpad.c:2488
StacktraceTop: gst_caps_ subtract (minuend=0x9be15c0, subtrahend= 0xa5fe160) at gstcaps.c:1370 configure_ src (pad=0x190, caps=0xa5fe160, dosetcaps=0) at gstpad.c:2488
gst_caps_is_subset (subset=0x9be15c0, superset=0xa5fe160) at gstcaps.c:1050
gst_caps_is_equal (caps1=0x9be15c0, caps2=0xa5fe160) at gstcaps.c:1087
gst_pad_accept_caps (pad=0x9c69710, caps=0x9be15c0) at gstpad.c:2305
gst_pad_