#0  0x00007fed0b7d4f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 17356
        selftid = 21156
#1  0x00007fed0b7d8388 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {52088064, 17356, 140656090166615, 140655883976709, 0, 23, 140656076541224, 8080, 17356, 6640694, 140656090195221, 0, 18446744073709551615, 0, 140656035000384, 6}}, sa_flags = 0, sa_restorer = 0x3d3d3d3d3d3d3d3d}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00000000004b74b9 in mono_handle_native_sigsegv (signal=signal@entry=11, ctx=ctx@entry=0x7fed09007ac0) at mini-exceptions.c:2335
        sa = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x7fecf5bf76cb <gst_pad_send_event_unchecked+907>}
        jit_tls = <optimized out>
        signal_str = 0x655436 "SIGSEGV"
#3  0x000000000050f13b in mono_arch_handle_altstack_exception (sigctx=sigctx@entry=0x7fed09007ac0, fault_addr=<optimized out>, stack_ovf=stack_ovf@entry=0) at exceptions-amd64.c:908
        exc = <optimized out>
        ctx = 0x7fed09007ac0
        ji = 0x0
        sp = <optimized out>
        frame_size = <optimized out>
        copied_ctx = <optimized out>
#4  0x0000000000423d22 in mono_sigsegv_signal_handler (_dummy=11, info=0x7fed09007bf0, context=0x7fed09007ac0) at mini.c:6769
        ji = 0x0
        jit_tls = 0x7fec9805c400
        fault_addr = <optimized out>
        ctx = 0x7fed09007ac0
#5  <signal handler called>
No locals.
#6  strlen () at ../sysdeps/x86_64/strlen.S:106
No locals.
#7  0x00007fed0865db03 in ?? ()
No symbol table info available.
#8  0x0000000000000280 in ?? ()
No symbol table info available.
#9  0x00007fecd528e068 in ?? ()
No symbol table info available.
#10 0x00000000031ba2c0 in ?? ()
No symbol table info available.
#11 0x00007fed0314659d in ?? ()
No symbol table info available.
#12 0x0000000000000200 in ?? ()
No symbol table info available.
#13 0x00007fecf5c1ac24 in gst_structure_copy (structure=0x31acd00) at gststructure.c:349
        new_field = {name = 4356, value = {g_type = 64, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}}
        new_structure = 0x31ba2c0
        field = <optimized out>
        i = <optimized out>
        len = <optimized out>
        __func__ = "gst_structure_copy"
        __PRETTY_FUNCTION__ = "gst_structure_copy"
#14 0x00007fecf5c20979 in __gst_tag_list_copy (list=0x439dcf0) at gsttaglist.c:715
        s = <optimized out>
#15 0x00007fecf5ebcaa5 in gst_tag_list_copy (taglist=<optimized out>) at ../../../gst/gsttaglist.h:439
No locals.
#16 gst_base_sink_default_event (basesink=0x4322800, event=0x3a93700) at gstbasesink.c:3072
        taglist = 0x439dcf0
        result = 1
        bclass = <optimized out>
        __PRETTY_FUNCTION__ = "gst_base_sink_default_event"
#17 0x00007fece51e614f in gst_fake_sink_event (bsink=0x4322800, event=0x3a93700) at gstfakesink.c:383
        sink = 0x4322800
#18 0x00007fecf5eb737d in gst_base_sink_event (pad=<optimized out>, parent=0x4322800, event=0x3a93700) at gstbasesink.c:3138
        basesink = 0x4322800
        result = 1
        bclass = 0x361b1d0
        __PRETTY_FUNCTION__ = "gst_base_sink_event"
#19 0x00007fecf5bf76cb in gst_pad_send_event_unchecked (pad=pad@entry=0x3739870, event=event@entry=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5035
        ret = <optimized out>
        event_type = GST_EVENT_TAG
        serialized = <optimized out>
        need_unlock = 1
        sticky = 1
        eventfunc = 0x7fecf5eb7240 <gst_base_sink_event>
        parent = 0x4322800
        __PRETTY_FUNCTION__ = "gst_pad_send_event_unchecked"
#20 0x00007fecf5bf7eb4 in gst_pad_push_event_unchecked (pad=pad@entry=0x7feccc07abe0, event=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:4731
        ret = <optimized out>
        peerpad = 0x3739870
        event_type = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event_unchecked"
#21 0x00007fecf5bf8328 in push_sticky (pad=0x7feccc07abe0, ev=0x7fecd528e3b0, user_data=0x7fecd528e410) at gstpad.c:3370
        data = <optimized out>
        event = 0x3a93700
        __PRETTY_FUNCTION__ = "push_sticky"
#22 0x00007fecf5bf6622 in events_foreach (pad=pad@entry=0x7feccc07abe0, func=func@entry=0x7fecf5bf81d0 <push_sticky>, user_data=user_data@entry=0x7fecd528e410) at gstpad.c:530
        ev = 0x3fbb510
        ev_ret = {received = 0, event = 0x3a93700}
        i = 3
        len = 4
        events = 0x7fecdc046360
        ret = <optimized out>
        cookie = 1471
#23 0x00007fecf5c005f8 in check_sticky (event=0x3a93700, pad=0x7feccc07abe0) at gstpad.c:3426
        data = {ret = GST_FLOW_OK, was_eos = 0, event = 0x3a93700}
#24 gst_pad_push_event (pad=0x7feccc07abe0, event=event@entry=0x3a93700) at gstpad.c:4848
        res = 0
        type = GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM
        sticky = 1
        serialized = <optimized out>
        __func__ = "gst_pad_push_event"
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#25 0x00007fecf5ed0306 in gst_base_transform_sink_eventfunc (trans=0x3752400, event=0x3a93700) at gstbasetransform.c:1879
        ret = 1
        forward = 1
        priv = <optimized out>
        __PRETTY_FUNCTION__ = "gst_base_transform_sink_eventfunc"
#26 0x00007fecf5bf76cb in gst_pad_send_event_unchecked (pad=pad@entry=0x3739640, event=event@entry=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5035
        ret = <optimized out>
        event_type = GST_EVENT_TAG
        serialized = <optimized out>
        need_unlock = 1
        sticky = 1
        eventfunc = 0x7fecf5ecbbc0 <gst_base_transform_sink_event>
        parent = 0x3752400
        __PRETTY_FUNCTION__ = "gst_pad_send_event_unchecked"
#27 0x00007fecf5bf7eb4 in gst_pad_push_event_unchecked (pad=pad@entry=0x3738fb0, event=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:4731
        ret = <optimized out>
        peerpad = 0x3739640
        event_type = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event_unchecked"
#28 0x00007fecf5bf8328 in push_sticky (pad=0x3738fb0, ev=0x7fecd528e690, user_data=0x7fecd528e6f0) at gstpad.c:3370
        data = <optimized out>
        event = 0x3a93700
        __PRETTY_FUNCTION__ = "push_sticky"
#29 0x00007fecf5bf6622 in events_foreach (pad=pad@entry=0x3738fb0, func=func@entry=0x7fecf5bf81d0 <push_sticky>, user_data=user_data@entry=0x7fecd528e6f0) at gstpad.c:530
        ev = 0x466ae30
        ev_ret = {received = 0, event = 0x3a93700}
        i = 3
        len = 4
        events = 0x476b130
        ret = <optimized out>
        cookie = 1471
#30 0x00007fecf5c005f8 in check_sticky (event=0x3a93700, pad=0x3738fb0) at gstpad.c:3426
        data = {ret = GST_FLOW_OK, was_eos = 0, event = 0x3a93700}
#31 gst_pad_push_event (pad=0x3738fb0, event=event@entry=0x3a93700) at gstpad.c:4848
        res = 0
        type = GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM
        sticky = 1
        serialized = <optimized out>
        __func__ = "gst_pad_push_event"
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#32 0x00007fecf5ed0306 in gst_base_transform_sink_eventfunc (trans=0x47966d0, event=0x3a93700) at gstbasetransform.c:1879
        ret = 1
        forward = 1
        priv = <optimized out>
        __PRETTY_FUNCTION__ = "gst_base_transform_sink_eventfunc"
#33 0x00007fecf5bf76cb in gst_pad_send_event_unchecked (pad=pad@entry=0x37391e0, event=event@entry=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5035
        ret = <optimized out>
        event_type = GST_EVENT_TAG
        serialized = <optimized out>
        need_unlock = 1
        sticky = 1
        eventfunc = 0x7fecf5ecbbc0 <gst_base_transform_sink_event>
        parent = 0x47966d0
        __PRETTY_FUNCTION__ = "gst_pad_send_event_unchecked"
#34 0x00007fecf5bf7eb4 in gst_pad_push_event_unchecked (pad=pad@entry=0x3738d80, event=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:4731
        ret = <optimized out>
        peerpad = 0x37391e0
        event_type = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event_unchecked"
#35 0x00007fecf5bf8328 in push_sticky (pad=0x3738d80, ev=0x7fecd528e970, user_data=0x7fecd528e9d0) at gstpad.c:3370
        data = <optimized out>
        event = 0x3a93700
        __PRETTY_FUNCTION__ = "push_sticky"
#36 0x00007fecf5bf6622 in events_foreach (pad=pad@entry=0x3738d80, func=func@entry=0x7fecf5bf81d0 <push_sticky>, user_data=user_data@entry=0x7fecd528e9d0) at gstpad.c:530
        ev = 0x4219c10
        ev_ret = {received = 0, event = 0x3a93700}
        i = 3
        len = 4
        events = 0x2f45950
        ret = <optimized out>
        cookie = 1473
#37 0x00007fecf5c005f8 in check_sticky (event=0x3a93700, pad=0x3738d80) at gstpad.c:3426
        data = {ret = GST_FLOW_OK, was_eos = 0, event = 0x3a93700}
#38 gst_pad_push_event (pad=0x3738d80, event=event@entry=0x3a93700) at gstpad.c:4848
        res = 0
        type = GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM
        sticky = 1
        serialized = <optimized out>
        __func__ = "gst_pad_push_event"
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#39 0x00007fecf5ed0306 in gst_base_transform_sink_eventfunc (trans=0x38c8be0, event=0x3a93700) at gstbasetransform.c:1879
        ret = 1
        forward = 1
        priv = <optimized out>
        __PRETTY_FUNCTION__ = "gst_base_transform_sink_eventfunc"
#40 0x00007fecf5bf76cb in gst_pad_send_event_unchecked (pad=pad@entry=0x3738920, event=event@entry=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5035
        ret = <optimized out>
        event_type = GST_EVENT_TAG
        serialized = <optimized out>
        need_unlock = 1
        sticky = 1
        eventfunc = 0x7fecf5ecbbc0 <gst_base_transform_sink_event>
        parent = 0x38c8be0
        __PRETTY_FUNCTION__ = "gst_pad_send_event_unchecked"
#41 0x00007fecf5bf7eb4 in gst_pad_push_event_unchecked (pad=pad@entry=0x3738b50, event=0x3a93700, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:4731
        ret = <optimized out>
        peerpad = 0x3738920
        event_type = <optimized out>
        __PRETTY_FUNCTION__ = "gst_pad_push_event_unchecked"
#42 0x00007fecf5bf8328 in push_sticky (pad=0x3738b50, ev=0x7fecd528ec50, user_data=0x7fecd528ecb0) at gstpad.c:3370
        data = <optimized out>
        event = 0x3a93700
        __PRETTY_FUNCTION__ = "push_sticky"
#43 0x00007fecf5bf6622 in events_foreach (pad=pad@entry=0x3738b50, func=func@entry=0x7fecf5bf81d0 <push_sticky>, user_data=user_data@entry=0x7fecd528ecb0) at gstpad.c:530
        ev = 0x3b59670
        ev_ret = {received = 0, event = 0x3a93700}
        i = 3
        len = 4
        events = 0x4168a30
        ret = <optimized out>
        cookie = 1474
#44 0x00007fecf5c005f8 in check_sticky (event=0x3a93700, pad=0x3738b50) at gstpad.c:3426
        data = {ret = GST_FLOW_OK, was_eos = 0, event = 0x3a93700}
#45 gst_pad_push_event (pad=0x3738b50, event=event@entry=0x3a93700) at gstpad.c:4848
        res = 0
        type = GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM
        sticky = 1
        serialized = <optimized out>
        __func__ = "gst_pad_push_event"
        __PRETTY_FUNCTION__ = "gst_pad_push_event"
#46 0x00007fece51fb2c7 in gst_queue_push_one (queue=0x7fec9801b390) at gstqueue.c:1167
        event = 0x3a93700
        type = GST_EVENT_TAG
        data = 0x3a93700
        result = GST_FLOW_OK
#47 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1244
        queue = 0x7fec9801b390
        __PRETTY_FUNCTION__ = "gst_queue_loop"
#48 0x00007fecf5c264e9 in gst_task_func (task=0x39525f0) at gsttask.c:316
        lock = 0x3738bc0
        tself = 0x373a0a0
        priv = 0x39525a0
        __PRETTY_FUNCTION__ = "gst_task_func"
#49 0x00007fed0866689c in ?? ()
No symbol table info available.
#50 0x0000000000000000 in ?? ()
No symbol table info available.