#0  gst_mini_object_unlock (object=0x7f876a02c010, flags=flags@entry=GST_LOCK_FLAG_EXCLUSIVE) at gstminiobject.c:241
        access_mode = <optimized out>
        state = <optimized out>
        newstate = <optimized out>
        __PRETTY_FUNCTION__ = "gst_mini_object_unlock"
#1  0x00007f87810d3d41 in _gst_buffer_free (buffer=0x7f8760032230) at gstbuffer.c:530
        walk = <optimized out>
        next = <optimized out>
        i = <optimized out>
        len = <optimized out>
        msize = 272
        __PRETTY_FUNCTION__ = "_gst_buffer_free"
#2  0x00007f87700712b0 in gst_buffer_unref (buf=<optimized out>) at /usr/include/gstreamer-1.0/gst/gstbuffer.h:350
No locals.
#3  gst_qtdemux_loop_state_header (qtdemux=0x7f876006a130) at qtdemux.c:2785
        moov = 0x7f8760032230
        length = 4443839
        fourcc = 1987014509
        buf = 0x7f8760032120
        ret = <optimized out>
        cur_offset = <optimized out>
        map = {memory = 0x7f876a02c010, flags = GST_MAP_READ, data = 0x7f876a02c0a0 <Address 0x7f876a02c0a0 out of bounds>, size = 3843944, maxsize = 3843951, user_data = {0x7f87810fc84e <do_stream_status+174>, 0x0, 0x7f0, 0x7f87580010e0}, _gst_reserved = {0x7f8758001170, 0x0, 0x0, 0x0}}
#4  gst_qtdemux_loop (pad=0x7f878455d2a0) at qtdemux.c:3872
        qtdemux = 0x7f876006a130
        cur_offset = <optimized out>
        ret = <optimized out>
        __FUNCTION__ = "gst_qtdemux_loop"
#5  0x00007f878112cc31 in gst_task_func (task=0x7f878443f6c0) at gsttask.c:316
        lock = 0x7f878455d310
        tself = 0x7f8760067230
        priv = 0x7f878443f790
        __PRETTY_FUNCTION__ = "gst_task_func"
#6  0x00007f8780bc1e32 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gthreadpool.c:309
        task = 0x7f8760064150
        pool = 0x7f87842793c0
#7  0x00007f8780bc15f5 in g_thread_proxy (data=0x7f8760067230) at /build/buildd/glib2.0-2.35.4/./glib/gthread.c:798
        thread = 0x7f8760067230
#8  0x00007f878063ef9f in start_thread (arg=0x7f876abd7700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f876abd7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140219588114176, 554538631298124048, 0, 140219995250784, 140219600850096, 4096, -523322967352833776, -523229865381492464}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0x00007f878036c0cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114
No locals.