#0  g_logv (log_domain=0x0, log_level=<optimized out>, format=0x7f83127532c8 "Gstreamer error while transcoding: %s", args1=0x7fff61b617f8) at /build/buildd/glib2.0-2.30.0/./glib/gmessages.c:577
        depth = 0
        domain = 0x0
        data = 0x0
        log_func = 0x7f830ffa97c0 <g_log_default_handler>
        domain_fatal_mask = <optimized out>
        masquerade_fatal = <optimized out>
        test_level = <optimized out>
        was_fatal = 0
        was_recursion = 0
        i = <optimized out>
#1  0x00007f830ffaa6a2 in g_log (log_domain=<optimized out>, log_level=<optimized out>, format=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmessages.c:591
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff61b618d0, reg_save_area = 0x7fff61b61810}}
#2  0x00007f831273b817 in ?? ()
No symbol table info available.
#3  0x00007f83106dbfd4 in gst_bus_source_dispatch (source=0x7f831495fd40, callback=0x7f831273b4e0, user_data=0x7f83147e6810) at gstbus.c:761
        handler = 0x7f831273b4e0
        bsource = 0x7f831495fd40
        message = 0x7f8314628110
        keep = <optimized out>
        bus = 0x7f83145fa330
        __PRETTY_FUNCTION__ = "gst_bus_source_dispatch"
#4  0x00007f830ffa1a5d in g_main_dispatch (context=0x7f83145dbfd0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7f83106dbeb0 <gst_bus_source_dispatch>
        was_in_call = 0
        user_data = 0x7f83147e6810
        callback = 0x7f831273b4e0
        cb_funcs = 0x7f8310251670
        cb_data = 0x7f83148922b0
        current_source_link = {data = 0x7f831495fd40, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7f831495fd40
        current = 0x7f8314c99d10
        i = <optimized out>
#5  g_main_context_dispatch (context=0x7f83145dbfd0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#6  0x00007f830ffa2258 in g_main_context_iterate (context=0x7f83145dbfd0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = 3
        allocated_nfds = <optimized out>
        fds = <optimized out>
#7  0x00007f830ffa2792 in g_main_loop_run (loop=0x7f8314c27a10) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#8  0x00007f831164bdb7 in IA__gtk_main () at /build/buildd/gtk+2.0-2.24.6/gtk/gtkmain.c:1329
        tmp_list = <optimized out>
        functions = 0x0
        init = <optimized out>
        loop = 0x7f8314c27a10
#9  0x00007f8312735390 in main ()
No symbol table info available.