Starting program: /usr/bin/python3 test.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffefe8f700 (LWP 4924)]
[New Thread 0x7fffef68e700 (LWP 4925)]
[New Thread 0x7fffeee52700 (LWP 4926)]
[New Thread 0x7fffee651700 (LWP 4927)]
[New Thread 0x7fffede50700 (LWP 4928)]
[New Thread 0x7fffed64f700 (LWP 4929)]
[New Thread 0x7fffece4e700 (LWP 4930)]
[New Thread 0x7fffdffff700 (LWP 4931)]
[New Thread 0x7fffdf7fe700 (LWP 4932)]
[New Thread 0x7fffdeffd700 (LWP 4933)]
[New Thread 0x7fffde5ec700 (LWP 4934)]
[New Thread 0x7fffdddeb700 (LWP 4935)]
[New Thread 0x7fffdd5ea700 (LWP 4936)]
[New Thread 0x7fffad1c5700 (LWP 4937)]
[New Thread 0x7fffac9c4700 (LWP 4938)]
[New Thread 0x7fffac1c3700 (LWP 4939)]
[New Thread 0x7fffab9c2700 (LWP 4940)]
[New Thread 0x7fffa9bad700 (LWP 4941)]
[New Thread 0x7fffa93ac700 (LWP 4942)]
[New Thread 0x7fffa8bab700 (LWP 4943)]
[New Thread 0x7fff93fff700 (LWP 4944)]
[New Thread 0x7fff937fe700 (LWP 4945)]
[New Thread 0x7fff92ffd700 (LWP 4946)]
[New Thread 0x7fff8deb8700 (LWP 4947)]
[New Thread 0x7fff75561700 (LWP 4948)]
[New Thread 0x7fff6f1f7700 (LWP 4949)]
[New Thread 0x7fff6e9f6700 (LWP 4950)]
[New Thread 0x7fff6e1f5700 (LWP 4951)]
[New Thread 0x7fff6d9f4700 (LWP 4952)]
[New Thread 0x7fff6d1f3700 (LWP 4953)]
[Thread 0x7fff6f1f7700 (LWP 4949) exited]
[New Thread 0x7fff6f1f7700 (LWP 4954)]
[Thread 0x7fff6e9f6700 (LWP 4950) exited]
[Thread 0x7fff6d9f4700 (LWP 4952) exited]
[Thread 0x7fff6d1f3700 (LWP 4953) exited]
[New Thread 0x7fff6d1f3700 (LWP 4955)]
[New Thread 0x7fff6d9f4700 (LWP 4956)]
[New Thread 0x7fff6e9f6700 (LWP 4957)]
[New Thread 0x7fff6c9f2700 (LWP 4958)]
[New Thread 0x7fff57fff700 (LWP 4959)]
[New Thread 0x7fff577fe700 (LWP 4960)]
[New Thread 0x7fff56ffd700 (LWP 4961)]
[New Thread 0x7fff567fc700 (LWP 4962)]
[New Thread 0x7fff55ffb700 (LWP 4963)]
[Thread 0x7fff6f1f7700 (LWP 4954) exited]
[New Thread 0x7fff6f1f7700 (LWP 4964)]
[New Thread 0x7fff557fa700 (LWP 4965)]
[New Thread 0x7fff54ff9700 (LWP 4966)]
[New Thread 0x7fff37fff700 (LWP 4967)]
[New Thread 0x7fff377fe700 (LWP 4968)]
[New Thread 0x7fff36ffd700 (LWP 4969)]
[New Thread 0x7fff367fc700 (LWP 4970)]
[New Thread 0x7fff35ffb700 (LWP 4971)]
[New Thread 0x7fff357fa700 (LWP 4972)]
[New Thread 0x7fff34ff9700 (LWP 4973)]
[New Thread 0x7fff2ffff700 (LWP 4974)]
[New Thread 0x7fff2f7fe700 (LWP 4975)]
[New Thread 0x7fff2effd700 (LWP 4976)]
[New Thread 0x7fff2e7fc700 (LWP 4977)]
[New Thread 0x7fff2dffb700 (LWP 4978)]
[New Thread 0x7fff2d7fa700 (LWP 4979)]
[New Thread 0x7fff2cff9700 (LWP 4980)]
[Thread 0x7fff6d9f4700 (LWP 4956) exited]
[Thread 0x7fff6d1f3700 (LWP 4955) exited]
[New Thread 0x7fff6d1f3700 (LWP 4981)]
[Thread 0x7fff6c9f2700 (LWP 4958) exited]
[New Thread 0x7fff6c9f2700 (LWP 4982)]
[New Thread 0x7fff6d9f4700 (LWP 4983)]
[Thread 0x7fff567fc700 (LWP 4962) exited]
[Thread 0x7fff577fe700 (LWP 4960) exited]
[New Thread 0x7fff577fe700 (LWP 4984)]
[Thread 0x7fff6f1f7700 (LWP 4964) exited]
[New Thread 0x7fff6f1f7700 (LWP 4985)]
[New Thread 0x7fff567fc700 (LWP 4986)]
[New Thread 0x7fff2c7f8700 (LWP 4987)]
[New Thread 0x7fff2bff7700 (LWP 4988)]
[Thread 0x7fff37fff700 (LWP 4967) exited]
[Thread 0x7fff557fa700 (LWP 4965) exited]
[New Thread 0x7fff557fa700 (LWP 4989)]
[New Thread 0x7fff37fff700 (LWP 4990)]
[Thread 0x7fff36ffd700 (LWP 4969) exited]
[New Thread 0x7fff36ffd700 (LWP 4991)]
[Thread 0x7fff34ff9700 (LWP 4973) exited]
[Thread 0x7fff35ffb700 (LWP 4971) exited]
[New Thread 0x7fff35ffb700 (LWP 4992)]
[New Thread 0x7fff34ff9700 (LWP 4993)]
[Thread 0x7fff2f7fe700 (LWP 4975) exited]
[New Thread 0x7fff2f7fe700 (LWP 4994)]
[Thread 0x7fff2e7fc700 (LWP 4977) exited]
[Thread 0x7fff2d7fa700 (LWP 4979) exited]
[New Thread 0x7fff2d7fa700 (LWP 4995)]
[New Thread 0x7fff2e7fc700 (LWP 4996)]
[Thread 0x7fff6d1f3700 (LWP 4981) exited]
[Thread 0x7fff6d9f4700 (LWP 4983) exited]
[Thread 0x7fff6c9f2700 (LWP 4982) exited]
[Thread 0x7fff57fff700 (LWP 4959) exited]
[Thread 0x7fff6e1f5700 (LWP 4951) exited]
[Thread 0x7fff6f1f7700 (LWP 4985) exited]
[Thread 0x7fff56ffd700 (LWP 4961) exited]
[Thread 0x7fff6e9f6700 (LWP 4957) exited]

Program received signal SIGINT, Interrupt.
pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
238	../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory.

Thread 74 (Thread 0x7fff2e7fc700 (LWP 4996)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffcc028ce0, mutex=mutex@entry=0x7fffcc028cd0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fffcc028f40 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fff985f0630) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff2e7fc700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 73 (Thread 0x7fff2d7fa700 (LWP 4995)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffcc028200, mutex=mutex@entry=0x7fffcc0281f0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fffcc028460 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffcc027400) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff2d7fa700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 72 (Thread 0x7fff2f7fe700 (LWP 4994)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffcc028940, mutex=mutex@entry=0x7fffcc028930) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fffcc028ba0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc80295e0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff2f7fe700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 71 (Thread 0x7fff34ff9700 (LWP 4993)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50023b50, mutex=mutex@entry=0x7fff50023b40) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fff50023db0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffcc027450) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff34ff9700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 70 (Thread 0x7fff35ffb700 (LWP 4992)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50023410, mutex=mutex@entry=0x7fff50023400) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fff50023670 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc80290a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff35ffb700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 69 (Thread 0x7fff36ffd700 (LWP 4991)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50023070, mutex=mutex@entry=0x7fff50023060) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fff500232d0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8029230) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff36ffd700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 68 (Thread 0x7fff37fff700 (LWP 4990)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50022cd0, mutex=mutex@entry=0x7fff50022cc0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fff50022f30 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8029590) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff37fff700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 67 (Thread 0x7fff557fa700 (LWP 4989)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff500237b0, mutex=mutex@entry=0x7fff500237a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fff50023a10 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffcc027940) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff557fa700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 66 (Thread 0x7fff2bff7700 (LWP 4988)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50022948, mutex=mutex@entry=0x7fff50022920) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fff50022b90 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffc803b4d0 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8029370) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff2bff7700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 65 (Thread 0x7fff2c7f8700 (LWP 4987)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50022930, mutex=mutex@entry=0x7fff50022920) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fff50022b90 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc80294f0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff2c7f8700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 64 (Thread 0x7fff567fc700 (LWP 4986)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffc800a180, mutex=mutex@entry=0x7fffc800a170) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fffc800a3e0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffcc0035e0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff567fc700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 62 (Thread 0x7fff577fe700 (LWP 4984)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffc800a520, mutex=mutex@entry=0x7fffc800a510) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aae98a in wait_next_timeout (jitterbuffer=0x7fffc800a780 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3449
#3  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc80294a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#4  0x00007ffff7bc26aa in start_thread (arg=0x7fff577fe700) at pthread_create.c:333
#5  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 58 (Thread 0x7fff2cff9700 (LWP 4980)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffcc028cf8, mutex=mutex@entry=0x7fffcc028cd0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fffcc028f40 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055710 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc80290f0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff2cff9700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 56 (Thread 0x7fff2dffb700 (LWP 4978)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f02c in g_mutex_lock_slowpath (mutex=0xe564a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1315
#2  0x00007ffff5f3f872 in g_mutex_lock (mutex=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1339
#3  0x00007ffff3a9e23f in gst_rtp_bin_get_internal_session (bin=0xe564f0 [GstRtpBin], session_id=0) at gstrtpbin.c:910
#4  0x00007ffff5caed90 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#5  0x00007ffff5cae7f8 in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#9  0x00007ffff61e9de1 in Python Exception <class 'gdb.error'> There is no member named v_pointer.: 
#10 0x00007ffff665ecc2 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#11 0x0000000000511a1a in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fff2dff9a80) at ../Python/ceval.c:4237
#12 0x0000000000511a1a in PyEval_EvalFrameEx (f=f@entry=Frame 0x7fff98006898, for file gst.py, line 629, in update_video (self=<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoA...(truncated), throwflag=0) at ../Python/ceval.c:2838
#13 0x0000000000515c2f in PyEval_EvalFrameEx (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fff2dff9b80, func=<optimized out>) at ../Python/ceval.c:4334
#14 0x0000000000515c2f in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fff2dff9b80) at ../Python/ceval.c:4262
#15 0x0000000000515c2f in PyEval_EvalFrameEx (f=f@entry=Frame 0x7fff70043018, for file gst.py, line 407, in on_rtpbin_pad_added (self=<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__...(truncated), throwflag=0) at ../Python/ceval.c:2838
#16 0x0000000000519757 in PyEval_EvalCodeEx (_co=<code at remote 0x7ffff7e426f0>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=<optimized out>, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3588
#17 0x00000000004c88ae in function_call.lto_priv.505 (func=<function at remote 0x7ffff4780158>, arg=(<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at remote 0x7ffff47858b8>, screen_ssrc=None, base_time=135732674...(truncated), kw=<optimized out>) at ../Objects/funcobject.c:632
#18 0x00000000004cf143 in method_call.lto_priv.424 (kw=0x0, arg=(<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at remote 0x7ffff47858b8>, screen_ssrc=None, base_time=135732674...(truncated), func=<function at remote 0x7ffff4780158>) at ../Objects/abstract.c:2040
#19 0x00000000004cf143 in method_call.lto_priv.424 (func=<function at remote 0x7ffff4780158>, arg=<optimized out>, kw=0x0) at ../Objects/classobject.c:347
#20 0x000000000050ff9a in PyEval_CallObjectWithKeywords (kw=0x0, arg=(<__main__.GstRtpBin at remote 0x7ffff477edc8>, <GhostPad at remote 0x7fffdc0c7ab0>), func=<method at remote 0x7ffff7f5ac88>)
    at ../Objects/abstract.c:2040
#21 0x000000000050ff9a in PyEval_CallObjectWithKeywords (func=<method at remote 0x7ffff7f5ac88>, arg=(<__main__.GstRtpBin at remote 0x7ffff477edc8>, <GhostPad at remote 0x7fffdc0c7ab0>), kw=<optimized out>)
    at ../Python/ceval.c:4114
#22 0x00007ffff6672e40 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#26 0x00007ffff61eb12f in <emit signal ??? on instance 0xe564f0 [GstRtpBin]> (instance=instance@entry=0xe564f0, signal_id=<optimized out>, detail=detail@entry=0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
    #23 0x00007ffff61cff6f in g_closure_invoke (closure=0xefa970, return_value=return_value@entry=0x0, n_param_values=2, param_values=param_values@entry=0x7fff2dffa0b0, invocation_hint=invocation_hint@entry=0x7fff2dffa030) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:801
    #24 0x00007ffff61e2061 in signal_emit_unlocked_R (node=node@entry=0xc597a0, detail=detail@entry=0, instance=instance@entry=0xe564f0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff2dffa0b0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3627
    #25 0x00007ffff61eadfc in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff2dffa270)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3383
#27 0x00007ffff4a04115 in gst_element_add_pad (element=0xe564f0 [GstRtpBin], pad=0x7fff48007b20 [GstGhostPad]) at gstelement.c:694
#28 0x00007ffff5caed90 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#29 0x00007ffff5cae7f8 in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#34 0x00007ffff61eb12f in <emit signal ??? on instance 0x7fffcc00aa20 [GstRtpPtDemux]> (instance=instance@entry=0x7fffcc00aa20, signal_id=<optimized out>, detail=detail@entry=0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
    #30 0x00007ffff61d0839 in g_cclosure_marshal_generic (closure=0x7fffcc027210, return_gvalue=0x0, n_param_values=<optimized out>, param_values=0x7fff2dffa7d0, invocation_hint=<optimized out>, marshal_data=0x0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:1487
    #31 0x00007ffff61d0015 in g_closure_invoke (closure=0x7fffcc027210, return_value=return_value@entry=0x0, n_param_values=3, param_values=param_values@entry=0x7fff2dffa7d0, invocation_hint=invocation_hint@entry=0x7fff2dffa750) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:801
    #32 0x00007ffff61e2061 in signal_emit_unlocked_R (node=node@entry=0x7fffc8009510, detail=detail@entry=0, instance=instance@entry=0x7fffcc00aa20, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff2dffa7d0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3627
    #33 0x00007ffff61eadfc in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff2dffa9b0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3383
#35 0x00007ffff3ab2868 in gst_rtp_pt_demux_chain (pad=<optimized out>, parent=0x7fffcc00aa20 [GstRtpPtDemux], buf=0x7fffd8f4e8b0) at gstrtpptdemux.c:413
#36 0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fffd8f4e8b0, type=4112, pad=0x7fffcc02c280 [GstPad]) at gstpad.c:4085
#37 0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0x7fff700b3d80 [GstPad], type=type@entry=4112, data=data@entry=0x7fffd8f4e8b0) at gstpad.c:4337
#38 0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=buffer@entry=0x7fffd8f4e8b0) at gstpad.c:4453
#39 0x00007ffff3aace00 in pop_and_push_next (jitterbuffer=jitterbuffer@entry=0x7fffcc028460 [GstRtpJitterBuffer], seqnum=1385) at gstrtpjitterbuffer.c:2942
#40 0x00007ffff3aade3a in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fffcc028460 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3041
#41 0x00007ffff3aade3a in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fffcc028460 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3474
#42 0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055950 [GstTask]) at gsttask.c:331
#43 0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#44 0x00007ffff5f21965 in g_thread_proxy (data=0x7fffcc015050) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#45 0x00007ffff7bc26aa in start_thread (arg=0x7fff2dffb700) at pthread_create.c:333
#46 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 54 (Thread 0x7fff2effd700 (LWP 4976)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffcc028958, mutex=mutex@entry=0x7fffcc028930) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fffcc028ba0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffc8024290 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8029190) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff2effd700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 52 (Thread 0x7fff2ffff700 (LWP 4974)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50023428, mutex=mutex@entry=0x7fff50023400) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fff50023670 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055830 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffcc015540) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff2ffff700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 50 (Thread 0x7fff357fa700 (LWP 4972)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50023b68, mutex=mutex@entry=0x7fff50023b40) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fff50023db0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055dd0 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc80292d0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff357fa700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 48 (Thread 0x7fff367fc700 (LWP 4970)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50023088, mutex=mutex@entry=0x7fff50023060) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fff500232d0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffcc00a170 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8029450) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff367fc700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 46 (Thread 0x7fff377fe700 (LWP 4968)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff500237c8, mutex=mutex@entry=0x7fff500237a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fff50023a10 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055ef0 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffd4003770) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff377fe700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7fff54ff9700 (LWP 4966)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fff50022ce8, mutex=mutex@entry=0x7fff50022cc0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fff50022f30 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd40555f0 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8029000) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff54ff9700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 41 (Thread 0x7fff55ffb700 (LWP 4963)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffc800a538, mutex=mutex@entry=0x7fffc800a510) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fffc800a780 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffc803b050 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc8002b20) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff55ffb700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7fff75561700 (LWP 4948)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0x7fffc800a198, mutex=mutex@entry=0x7fffc800a170) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3aadbbf in gst_rtp_jitter_buffer_loop (jitterbuffer=0x7fffc800a3e0 [GstRtpJitterBuffer]) at gstrtpjitterbuffer.c:3477
#3  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffc803b290 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffe0002a30) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fff75561700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fff8deb8700 (LWP 4947)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083a7dd in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fff8deb8700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7fff92ffd700 (LWP 4946)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083b08b in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fff92ffd700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7fff937fe700 (LWP 4945)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083b08b in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fff937fe700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fff93fff700 (LWP 4944)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083b08b in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fff93fff700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fffa8bab700 (LWP 4943)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083b08b in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffa8bab700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fffa93ac700 (LWP 4942)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083b08b in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffa93ac700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7fffa9bad700 (LWP 4941)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff083b08b in  () at /usr/lib/x86_64-linux-gnu/libx264.so.146
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffa9bad700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fffab9c2700 (LWP 4940)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffb712101e in  () at /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffab9c2700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fffac1c3700 (LWP 4939)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffb712101e in  () at /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffac1c3700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fffac9c4700 (LWP 4938)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffb712101e in  () at /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffac9c4700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fffad1c5700 (LWP 4937)):
#0  0x00007ffff7bc7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffb712101e in  () at /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007ffff7bc26aa in start_thread (arg=0x7fffad1c5700) at pthread_create.c:333
#3  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fffdd5ea700 (LWP 4936)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xc81718, mutex=mutex@entry=0xc81708) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3d282b2 in _gst_data_queue_wait_non_empty (queue=queue@entry=0xc81760 [GstDataQueue]) at gstdataqueue.c:553
#3  0x00007ffff3d295d0 in gst_data_queue_pop (queue=0xc81760 [GstDataQueue], item=item@entry=0x7fffdd5e9e40) at gstdataqueue.c:595
#4  0x00007ffff3430229 in gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1395
#5  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055290 [GstTask]) at gsttask.c:331
#6  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#7  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffd4054b20) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#8  0x00007ffff7bc26aa in start_thread (arg=0x7fffdd5ea700) at pthread_create.c:333
#9  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fffdddeb700 (LWP 4935)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xc81658, mutex=mutex@entry=0xc81648) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3d282b2 in _gst_data_queue_wait_non_empty (queue=queue@entry=0xc816a0 [GstDataQueue]) at gstdataqueue.c:553
#3  0x00007ffff3d295d0 in gst_data_queue_pop (queue=0xc816a0 [GstDataQueue], item=item@entry=0x7fffdddeae40) at gstdataqueue.c:595
#4  0x00007ffff3430229 in gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1395
#5  0x00007ffff4a4bc21 in gst_task_func (task=0x7fffd4055170 [GstTask]) at gsttask.c:331
#6  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#7  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffc40132d0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#8  0x00007ffff7bc26aa in start_thread (arg=0x7fffdddeb700) at pthread_create.c:333
#9  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fffde5ec700 (LWP 4934)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xf0abf0, mutex=mutex@entry=0xf0aba8) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff4a4bdbd in gst_task_func (task=0xf0ab90 [GstTask]) at gsttask.c:316
#3  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#4  0x00007ffff5f21965 in g_thread_proxy (data=0x7fffd40544f0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#5  0x00007ffff7bc26aa in start_thread (arg=0x7fffde5ec700) at pthread_create.c:333
#6  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fffdeffd700 (LWP 4933)):
#0  0x00007ffff7bc8149 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x0000000000510e24 in take_gil.lto_priv.1441 (cond=<optimized out>, mut=<optimized out>, us=5000) at ../Python/condvar.h:103
#2  0x0000000000510e24 in take_gil.lto_priv.1441 (tstate=tstate@entry=0x7fff98628330) at ../Python/ceval_gil.h:224
#3  0x0000000000511433 in PyEval_RestoreThread (tstate=0x7fff98628330) at ../Python/ceval.c:448
#4  0x00000000005f8717 in PyGILState_Ensure () at ../Python/pystate.c:793
#5  0x00007ffff6671315 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#6  0x00007ffff5caeb7f in ffi_closure_unix64_inner () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#7  0x00007ffff5caeef8 in ffi_closure_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#8  0x00007ffff4a45612 in gst_system_clock_async_thread (clock=0xeee150 [GstSystemClock]) at gstsystemclock.c:484
#9  0x00007ffff5f21965 in g_thread_proxy (data=0xf22370) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#10 0x00007ffff7bc26aa in start_thread (arg=0x7fffdeffd700) at pthread_create.c:333
#11 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fffdf7fe700 (LWP 4932)):
#0  0x00007ffff7bc8149 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x0000000000510e24 in take_gil.lto_priv.1441 (cond=<optimized out>, mut=<optimized out>, us=5000) at ../Python/condvar.h:103
#2  0x0000000000510e24 in take_gil.lto_priv.1441 (tstate=tstate@entry=0x7fffc0004c90) at ../Python/ceval_gil.h:224
#3  0x0000000000511433 in PyEval_RestoreThread (tstate=0x7fffc0004c90) at ../Python/ceval.c:448
#4  0x000000000044c9fe in _enter_buffered_busy (self=self@entry=0x7ffff7fd7ca8) at ../Modules/_io/bufferedio.c:323
#5  0x000000000044f76b in bufferedwriter_write (self=0x7ffff7fd7ca8, args=<optimized out>) at ../Modules/_io/bufferedio.c:2015
#6  0x00000000005bb1a9 in PyObject_CallMethodObjArgs (kw=0x0, arg=(b'pad-removed recv_rtp_src_0_635727636_111\n',), func=<built-in method write of _io.BufferedWriter object at remote 0x7ffff7fd7ca8>)
    at ../Objects/abstract.c:2040
#7  0x00000000005bb1a9 in PyObject_CallMethodObjArgs (callable=<optimized out>, name=<optimized out>) at ../Objects/abstract.c:2281
#8  0x00000000004eb20b in _textiowrapper_writeflush.lto_priv.1392 (self=0x7ffff7f74630) at ../Modules/_io/textio.c:1283
#9  0x00000000004ee155 in textiowrapper_write.lto_priv.1379 (self=0x7ffff7f74630, args=<optimized out>) at ../Modules/_io/textio.c:1369
#10 0x000000000050ff9a in PyEval_CallObjectWithKeywords (kw=0x0, arg=('\n',), func=<built-in method write of _io.TextIOWrapper object at remote 0x7ffff7f74630>) at ../Objects/abstract.c:2040
#11 0x000000000050ff9a in PyEval_CallObjectWithKeywords (func=<built-in method write of _io.TextIOWrapper object at remote 0x7ffff7f74630>, arg=('\n',), kw=<optimized out>) at ../Python/ceval.c:4114
#12 0x00000000004cb2d8 in PyFile_WriteObject (v=v@entry='\n', f=f@entry=<_io.TextIOWrapper at remote 0x7ffff7f74630>, flags=flags@entry=1) at ../Objects/fileobject.c:155
#13 0x00000000005c2c53 in PyFile_WriteString (s=<optimized out>, f=<_io.TextIOWrapper at remote 0x7ffff7f74630>) at ../Objects/fileobject.c:180
#14 0x00000000005eed1d in builtin_print (self=<optimized out>, args=('pad-removed', 'recv_rtp_src_0_635727636_111'), kwds=<optimized out>) at ../Python/bltinmodule.c:1636
#15 0x0000000000511a1a in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fffdf7fbe00) at ../Python/ceval.c:4237
#16 0x0000000000511a1a in PyEval_EvalFrameEx (f=f@entry=Frame 0x7ffff7e4f5e8, for file gst.py, line 434, in on_rtpbin_pad_removed (self=<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main...(truncated), throwflag=0) at ../Python/ceval.c:2838
#17 0x0000000000519757 in PyEval_EvalCodeEx (_co=<code at remote 0x7ffff7e42810>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=<optimized out>, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3588
#18 0x00000000004c88ae in function_call.lto_priv.505 (func=<function at remote 0x7ffff4780268>, arg=(<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at remote 0x7ffff47858b8>, screen_ssrc=None, base_time=135732674...(truncated), kw=<optimized out>) at ../Objects/funcobject.c:632
#19 0x00000000004cf143 in method_call.lto_priv.424 (kw=0x0, arg=(<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at remote 0x7ffff47858b8>, screen_ssrc=None, base_time=135732674...(truncated), func=<function at remote 0x7ffff4780268>) at ../Objects/abstract.c:2040
#20 0x00000000004cf143 in method_call.lto_priv.424 (func=<function at remote 0x7ffff4780268>, arg=<optimized out>, kw=0x0) at ../Objects/classobject.c:347
#21 0x000000000050ff9a in PyEval_CallObjectWithKeywords (kw=0x0, arg=(<__main__.GstRtpBin at remote 0x7ffff477edc8>, <GhostPad at remote 0x7fffdc0c7d38>), func=<method at remote 0x7ffff68a2688>)
    at ../Objects/abstract.c:2040
#22 0x000000000050ff9a in PyEval_CallObjectWithKeywords (func=<method at remote 0x7ffff68a2688>, arg=(<__main__.GstRtpBin at remote 0x7ffff477edc8>, <GhostPad at remote 0x7fffdc0c7d38>), kw=<optimized out>)
    at ../Python/ceval.c:4114
#23 0x00007ffff6672e40 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#27 0x00007ffff61eb12f in <emit signal ??? on instance 0xe564f0 [GstRtpBin]> (instance=instance@entry=0xe564f0, signal_id=<optimized out>, detail=detail@entry=0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
    #24 0x00007ffff61d0015 in g_closure_invoke (closure=0xf00500, return_value=return_value@entry=0x0, n_param_values=2, param_values=param_values@entry=0x7fffdf7fc330, invocation_hint=invocation_hint@entry=0x7fffdf7fc2b0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:801
    #25 0x00007ffff61e2061 in signal_emit_unlocked_R (node=node@entry=0xb4cb70, detail=detail@entry=0, instance=instance@entry=0xe564f0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffdf7fc330) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3627
    #26 0x00007ffff61eadfc in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffdf7fc4f0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3383
#28 0x00007ffff4a043cb in gst_element_remove_pad (element=element@entry=0xe564f0 [GstRtpBin], pad=pad@entry=0x7fff44007b30 [GstGhostPad]) at gstelement.c:806
#29 0x00007ffff3a9fdfc in payload_pad_removed (element=<optimized out>, pad=0x7fff7003e4b0 [GstPad], stream=<optimized out>) at gstrtpbin.c:2825
#30 0x00007ffff61d3117 in g_cclosure_marshal_VOID__OBJECTv (closure=0x7fffc801fb60, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=0x0, n_params=<optimized out>, param_types=0xb4cb50) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gmarshal.c:2102
#31 0x00007ffff61d0244 in _g_closure_invoke_va (closure=closure@entry=0x7fffc801fb60, return_value=return_value@entry=0x0, instance=instance@entry=0x7fffc803b120, args=args@entry=0x7fffdf7fc880, n_params=<optimized out>, param_types=0xb4cb50) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:864
#32 0x00007ffff61eaa46 in g_signal_emit_valist (instance=0x7fffc803b120, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffdf7fc880)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3292
#33 0x00007ffff61eb12f in g_signal_emit (instance=instance@entry=0x7fffc803b120, signal_id=<optimized out>, detail=detail@entry=0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
#34 0x00007ffff4a043cb in gst_element_remove_pad (element=element@entry=0x7fffc803b120 [GstRtpPtDemux], pad=0x7fff7003e4b0 [GstPad]) at gstelement.c:806
#35 0x00007ffff3ab209a in gst_rtp_pt_demux_release (ptdemux=0x7fffc803b120 [GstRtpPtDemux]) at gstrtpptdemux.c:607
#36 0x00007ffff3ab2126 in gst_rtp_pt_demux_change_state (element=0x7fffc803b120 [GstRtpPtDemux], transition=GST_STATE_CHANGE_READY_TO_NULL) at gstrtpptdemux.c:639
#37 0x00007ffff4a06e02 in gst_element_change_state (element=element@entry=0x7fffc803b120 [GstRtpPtDemux], transition=<optimized out>) at gstelement.c:2604
#38 0x00007ffff4a076ef in gst_element_continue_state (element=element@entry=0x7fffc803b120 [GstRtpPtDemux], ret=ret@entry=GST_STATE_CHANGE_SUCCESS) at gstelement.c:2314
#39 0x00007ffff4a06fe8 in gst_element_change_state (element=element@entry=0x7fffc803b120 [GstRtpPtDemux], transition=<optimized out>) at gstelement.c:2641
#40 0x00007ffff4a076ef in gst_element_continue_state (element=element@entry=0x7fffc803b120 [GstRtpPtDemux], ret=ret@entry=GST_STATE_CHANGE_SUCCESS) at gstelement.c:2314
#41 0x00007ffff4a06fe8 in gst_element_change_state (element=element@entry=0x7fffc803b120 [GstRtpPtDemux], transition=transition@entry=GST_STATE_CHANGE_PLAYING_TO_PAUSED) at gstelement.c:2641
#42 0x00007ffff4a073f7 in gst_element_set_state_func (element=0x7fffc803b120 [GstRtpPtDemux], state=GST_STATE_NULL) at gstelement.c:2560
#43 0x00007ffff3a9f48c in free_stream (stream=stream@entry=0x7fffc80218b0, bin=bin@entry=0xe564f0 [GstRtpBin]) at gstrtpbin.c:1622
#44 0x00007ffff3a9f630 in ssrc_demux_pad_removed (element=<optimized out>, ssrc=635727636, pad=<optimized out>, session=0xef4340) at gstrtpbin.c:596
#45 0x00007ffff5caed90 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#46 0x00007ffff5cae7f8 in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#51 0x00007ffff61eb12f in <emit signal ??? on instance 0xef5040 [GstRtpSsrcDemux]> (instance=instance@entry=0xef5040, signal_id=<optimized out>, detail=detail@entry=0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
    #47 0x00007ffff61d0839 in g_cclosure_marshal_generic (closure=0xef47c0, return_gvalue=0x0, n_param_values=<optimized out>, param_values=0x7fffdf7fcfa0, invocation_hint=<optimized out>, marshal_data=0x0)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:1487
    #48 0x00007ffff61d0015 in g_closure_invoke (closure=0xef47c0, return_value=return_value@entry=0x0, n_param_values=3, param_values=param_values@entry=0x7fffdf7fcfa0, invocation_hint=invocation_hint@entry=0x7fffdf7fcf20) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:801
    #49 0x00007ffff61e2061 in signal_emit_unlocked_R (node=node@entry=0xef05e0, detail=detail@entry=0, instance=instance@entry=0xef5040, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffdf7fcfa0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3627
    #50 0x00007ffff61eadfc in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffdf7fd180)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3383
#52 0x00007ffff3ab7343 in gst_rtp_ssrc_demux_clear_ssrc (demux=0xef5040 [GstRtpSsrcDemux], ssrc=635727636) at gstrtpssrcdemux.c:530
#53 0x00007ffff61d26d8 in g_cclosure_marshal_VOID__FLAGSv (closure=<optimized out>, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0xeefbe0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gmarshal.c:1570
#54 0x00007ffff61d0244 in _g_closure_invoke_va (closure=closure@entry=0xef1ed0, return_value=return_value@entry=0x0, instance=instance@entry=0xef5040, args=args@entry=0x7fffdf7fd518, n_params=<optimized out>, param_types=0xeefbe0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:864
#55 0x00007ffff61eaa46 in g_signal_emit_valist (instance=instance@entry=0xef5040, signal_id=signal_id@entry=87, detail=detail@entry=0, var_args=var_args@entry=0x7fffdf7fd518)
    at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3292
#56 0x00007ffff61eb5f5 in g_signal_emit_by_name (instance=0xef5040, detailed_signal=0x7ffff3acdbea "clear-ssrc") at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3479
#57 0x00007ffff61d26d8 in g_cclosure_marshal_VOID__FLAGSv (closure=<optimized out>, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0xee8d50) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gmarshal.c:1570
#58 0x00007ffff61d0244 in _g_closure_invoke_va (closure=closure@entry=0xef4810, return_value=return_value@entry=0x0, instance=instance@entry=0xeec130, args=args@entry=0x7fffdf7fd890, n_params=<optimized out>, param_types=0xee8d50) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:864
#59 0x00007ffff61eaa46 in g_signal_emit_valist (instance=0xeec130, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffdf7fd890) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3292
#60 0x00007ffff61eb12f in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
#61 0x00007ffff61d3117 in g_cclosure_marshal_VOID__OBJECTv (closure=0xef0540, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=0x0, n_params=<optimized out>, param_types=0xe5e9d0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gmarshal.c:2102
#62 0x00007ffff61d0244 in _g_closure_invoke_va (closure=closure@entry=0xef0540, return_value=return_value@entry=0x0, instance=instance@entry=0xef2080, args=args@entry=0x7fffdf7fdbd0, n_params=<optimized out>, param_types=0xe5e9d0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gclosure.c:864
#63 0x00007ffff61eaa46 in g_signal_emit_valist (instance=0xef2080, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffdf7fdbd0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3292
#64 0x00007ffff61eb12f in g_signal_emit (instance=instance@entry=0xef2080, signal_id=<optimized out>, detail=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./gobject/gsignal.c:3439
#65 0x00007ffff3abc670 in session_cleanup (source=<optimized out>, sess=<optimized out>) at rtpsession.c:885
#66 0x00007ffff3abc670 in session_cleanup (key=<optimized out>, source=0x7fffc8006eb0 [RTPSource], data=0x7fffdf7fdd80) at rtpsession.c:3469
#67 0x00007ffff5eea3e0 in g_hash_table_foreach (hash_table=hash_table@entry=Python Exception <class 'TypeError'> iter() returned non-iterator of type '_iterator': 
0x7fffcc0055e0, func=func@entry=0x7ffff3abc110 <session_cleanup>, user_data=user_data@entry=0x7fffdf7fdd80) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/ghash.c:1607
#68 0x00007ffff3ac1996 in rtp_session_on_timeout (sess=sess@entry=0xef2080 [RTPSession], current_time=current_time@entry=13606732857569, ntpnstime=<optimized out>, running_time=<optimized out>)
    at rtpsession.c:3835
#69 0x00007ffff3acaa09 in rtcp_thread (rtpsession=0xeec130 [GstRtpSession]) at gstrtpsession.c:1035
#70 0x00007ffff5f21965 in g_thread_proxy (data=0xf070a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#71 0x00007ffff7bc26aa in start_thread (arg=0x7fffdf7fe700) at pthread_create.c:333
#72 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fffdffff700 (LWP 4931)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xf0a650, mutex=mutex@entry=0xf0a608) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff4a4bdbd in gst_task_func (task=0xf0a5f0 [GstTask]) at gsttask.c:316
#3  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#4  0x00007ffff5f21965 in g_thread_proxy (data=0xf07000) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#5  0x00007ffff7bc26aa in start_thread (arg=0x7fffdffff700) at pthread_create.c:333
#6  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fffece4e700 (LWP 4930)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xe53700, mutex=mutex@entry=0xe53710) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3f4af45 in gst_app_src_create (bsrc=0xe538b0 [GstAppSrc], offset=<optimized out>, size=4096, buf=0x7fffece4dd08) at gstappsrc.c:1197
#3  0x00007ffff3d12806 in gst_base_src_get_range (src=src@entry=0xe538b0 [GstAppSrc], offset=offset@entry=18446744073709551615, length=4096, buf=buf@entry=0x7fffece4dde8) at gstbasesrc.c:2455
#4  0x00007ffff3d143e5 in gst_base_src_loop (pad=0xe56050 [GstPad]) at gstbasesrc.c:2731
#5  0x00007ffff4a4bc21 in gst_task_func (task=0xf0a710 [GstTask]) at gsttask.c:331
#6  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#7  0x00007ffff5f21965 in g_thread_proxy (data=0xf07140) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#8  0x00007ffff7bc26aa in start_thread (arg=0x7fffece4e700) at pthread_create.c:333
#9  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fffed64f700 (LWP 4929)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xe5b400, mutex=mutex@entry=0xe5b410) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3f4af45 in gst_app_src_create (bsrc=0xe5b5b0 [GstAppSrc], offset=<optimized out>, size=4096, buf=0x7fffed64ed08) at gstappsrc.c:1197
#3  0x00007ffff3d12806 in gst_base_src_get_range (src=src@entry=0xe5b5b0 [GstAppSrc], offset=offset@entry=18446744073709551615, length=4096, buf=buf@entry=0x7fffed64ede8) at gstbasesrc.c:2455
#4  0x00007ffff3d143e5 in gst_base_src_loop (pad=0xe56290 [GstPad]) at gstbasesrc.c:2731
#5  0x00007ffff4a4bc21 in gst_task_func (task=0xf0a830 [GstTask]) at gsttask.c:331
#6  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#7  0x00007ffff5f21965 in g_thread_proxy (data=0xf07320) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#8  0x00007ffff7bc26aa in start_thread (arg=0x7fffed64f700) at pthread_create.c:333
#9  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fffede50700 (LWP 4928)):
#0  0x00007ffff78ec9a1 in __GI_ppoll (fds=0x7fffc00010c0, nfds=1, timeout=<optimized out>, timeout@entry=0x7fffede4f9e0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:56
#1  0x00007ffff4a2fb58 in gst_poll_wait (__ss=0x0, __timeout=0x7fffede4f9e0, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  0x00007ffff4a2fb58 in gst_poll_wait (set=0xeeb0f0, timeout=timeout@entry=20967165) at gstpoll.c:1248
#3  0x00007ffff4a45049 in gst_system_clock_id_wait_jitter_unlocked (clock=0xeee150 [GstSystemClock], entry=0x7fffd0002c00, jitter=<optimized out>, restart=1) at gstsystemclock.c:684
#4  0x00007ffff49f73eb in gst_clock_id_wait (id=id@entry=0x7fffd0002c00, jitter=jitter@entry=0x0) at gstclock.c:548
#5  0x00007ffff3d12ddd in gst_base_src_get_range (time=<optimized out>, clock=0xeee150 [GstSystemClock], basesrc=0xe8e0d0 [GstAudioTestSrc]) at gstbasesrc.c:2126
#6  0x00007ffff3d12ddd in gst_base_src_get_range (buffer=<optimized out>, basesrc=0xe8e0d0 [GstAudioTestSrc]) at gstbasesrc.c:2294
#7  0x00007ffff3d12ddd in gst_base_src_get_range (src=src@entry=0xe8e0d0 [GstAudioTestSrc], offset=offset@entry=18446744073709551615, length=2048, buf=buf@entry=0x7fffede4fde8) at gstbasesrc.c:2502
#8  0x00007ffff3d143e5 in gst_base_src_loop (pad=0xe8c040 [GstPad]) at gstbasesrc.c:2731
#9  0x00007ffff4a4bc21 in gst_task_func (task=0xf0a4d0 [GstTask]) at gsttask.c:331
#10 0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#11 0x00007ffff5f21965 in g_thread_proxy (data=0xf07280) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#12 0x00007ffff7bc26aa in start_thread (arg=0x7fffede50700) at pthread_create.c:333
#13 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fffee651700 (LWP 4927)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xeca488, mutex=mutex@entry=0xeca460) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff34359c6 in gst_queue_chain_buffer_or_list (parent=0xeca1e0 [GstQueue], obj=0x7fffc407ed70, is_list=0, pad=<optimized out>) at gstqueue.c:1199
#3  0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fffc407ed70, type=4112, pad=0xeb8ff0 [GstPad]) at gstpad.c:4085
#4  0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0xe8d900 [GstPad], type=type@entry=4112, data=data@entry=0x7fffc407ed70) at gstpad.c:4337
#5  0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=buffer@entry=0x7fffc407ed70) at gstpad.c:4453
#6  0x00007ffff3cfcdf9 in gst_base_parse_push_frame (parse=parse@entry=0xeae300 [GstAacParse], frame=frame@entry=0x7fffee650550) at gstbaseparse.c:2401
#7  0x00007ffff3cfdd85 in gst_base_parse_chain (pad=<optimized out>, parent=0xeae300 [GstAacParse], buffer=0x7fffc407ed70) at gstbaseparse.c:3011
#8  0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fffc407ed70, type=4112, pad=0xe8d6c0 [GstPad]) at gstpad.c:4085
#9  0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0xe8d480 [GstPad], type=type@entry=4112, data=0x7fffc407ed70) at gstpad.c:4337
#10 0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=<optimized out>) at gstpad.c:4453
#11 0x00007ffff2d58e6c in gst_audio_encoder_finish_frame (enc=enc@entry=0xea8a70 [GstVoAacEnc], buf=buf@entry=0x7fffc407ed70, samples=<optimized out>, samples@entry=1024) at gstaudioencoder.c:1001
#12 0x00007ffff158aed7 in gst_voaacenc_handle_frame (benc=0xea8a70 [GstVoAacEnc], buf=0x7fffd0010350) at gstvoaacenc.c:436
#13 0x00007ffff2d599f5 in gst_audio_encoder_push_buffers (enc=enc@entry=0xea8a70 [GstVoAacEnc], force=force@entry=0) at gstaudioencoder.c:1127
#14 0x00007ffff2d5ab08 in gst_audio_encoder_chain (pad=<optimized out>, parent=0xea8a70 [GstVoAacEnc], buffer=0x7fff985f9b30) at gstaudioencoder.c:1346
#15 0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fff985f9b30, type=4112, pad=0xe8d240 [GstPad]) at gstpad.c:4085
#16 0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0xe8d000 [GstPad], type=type@entry=4112, data=0x7fff985f9b30) at gstpad.c:4337
#17 0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=<optimized out>) at gstpad.c:4453
#18 0x00007ffff3d18b8d in gst_base_transform_chain (pad=<optimized out>, parent=0xea41d0 [GstAudioResample], buffer=<optimized out>) at gstbasetransform.c:2369
#19 0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fff985f9b30, type=4112, pad=0xe8cdc0 [GstPad]) at gstpad.c:4085
#20 0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0xe8cb80 [GstPad], type=type@entry=4112, data=0x7fff985f9b30) at gstpad.c:4337
#21 0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=<optimized out>) at gstpad.c:4453
#22 0x00007ffff3d18b8d in gst_base_transform_chain (pad=<optimized out>, parent=0xe96ca0 [GstAudioConvert], buffer=<optimized out>) at gstbasetransform.c:2369
#23 0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fff985f9b30, type=4112, pad=0xe8c940 [GstPad]) at gstpad.c:4085
#24 0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0xe8c700 [GstPad], type=type@entry=4112, data=data@entry=0x7fff985f9b30) at gstpad.c:4337
#25 0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=buffer@entry=0x7fff985f9b30) at gstpad.c:4453
#26 0x00007ffff1bb0778 in gst_aggregator_finish_buffer (self=self@entry=0xe94a10 [GstAudioMixer], buffer=0x7fff985f9b30) at gstaggregator.c:576
#27 0x00007ffff1dbfc77 in gst_audio_aggregator_aggregate (agg=0xe94a10 [GstAudioMixer], timeout=1) at gstaudioaggregator.c:1345
#28 0x00007ffff1bb0e43 in gst_aggregator_aggregate_func (self=0xe94a10 [GstAudioMixer]) at gstaggregator.c:814
#29 0x00007ffff4a4bc21 in gst_task_func (task=0xf0a290 [GstTask]) at gsttask.c:331
#30 0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#31 0x00007ffff5f21965 in g_thread_proxy (data=0xf07370) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#32 0x00007ffff7bc26aa in start_thread (arg=0x7fffee651700) at pthread_create.c:333
#33 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fffeee52700 (LWP 4926)):
#0  0x00007ffff78ec9a1 in __GI_ppoll (fds=0x7fffc00010c0, nfds=1, timeout=<optimized out>, timeout@entry=0x7fffeee51ae0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:56
#1  0x00007ffff4a2fb58 in gst_poll_wait (__ss=0x0, __timeout=0x7fffeee51ae0, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  0x00007ffff4a2fb58 in gst_poll_wait (set=0xeeb0f0, timeout=timeout@entry=28557496) at gstpoll.c:1248
#3  0x00007ffff4a45049 in gst_system_clock_id_wait_jitter_unlocked (clock=0xeee150 [GstSystemClock], entry=0x7fff7901b090, jitter=<optimized out>, restart=1) at gstsystemclock.c:684
#4  0x00007ffff49f73eb in gst_clock_id_wait (id=0x7fff7901b090, jitter=jitter@entry=0x7fffeee51e18) at gstclock.c:548
#5  0x00007ffff1bb1a78 in gst_aggregator_aggregate_func (timeout=<synthetic pointer>, self=0xeb4e80 [GstCompositor]) at gstaggregator.c:692
#6  0x00007ffff1bb1a78 in gst_aggregator_aggregate_func (self=0xeb4e80 [GstCompositor]) at gstaggregator.c:806
#7  0x00007ffff4a4bc21 in gst_task_func (task=0xf0a3b0 [GstTask]) at gsttask.c:331
#8  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#9  0x00007ffff5f21965 in g_thread_proxy (data=0xf074f0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#10 0x00007ffff7bc26aa in start_thread (arg=0x7fffeee52700) at pthread_create.c:333
#11 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fffef68e700 (LWP 4925)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=cond@entry=0xeca760, mutex=mutex@entry=0xeca750) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff34340de in gst_queue_loop (pad=<optimized out>) at gstqueue.c:1471
#3  0x00007ffff4a4bc21 in gst_task_func (task=0xf0a170 [GstTask]) at gsttask.c:331
#4  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#5  0x00007ffff5f21965 in g_thread_proxy (data=0xf075e0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#6  0x00007ffff7bc26aa in start_thread (arg=0x7fffef68e700) at pthread_create.c:333
#7  0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fffefe8f700 (LWP 4924)):
#0  0x00007ffff78f25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff5f3f9cf in g_cond_wait (cond=0xeda0b0, mutex=0xeda0a8) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread-posix.c:1397
#2  0x00007ffff3d25f13 in gst_collect_pads_chain (pad=0xee0b80 [GstPad], parent=<optimized out>, buffer=0x7fffdbf61ea0) at gstcollectpads.c:2252
#3  0x00007ffff4a1b8f8 in gst_pad_push_data (data=0x7fffdbf61ea0, type=4112, pad=0xee0b80 [GstPad]) at gstpad.c:4085
#4  0x00007ffff4a1b8f8 in gst_pad_push_data (pad=0xeb9230 [GstPad], type=type@entry=4112, data=data@entry=0x7fffdbf61ea0) at gstpad.c:4337
#5  0x00007ffff4a23366 in gst_pad_push (pad=<optimized out>, buffer=buffer@entry=0x7fffdbf61ea0) at gstpad.c:4453
#6  0x00007ffff34349b9 in gst_queue_loop (queue=0xeca1e0 [GstQueue]) at gstqueue.c:1336
#7  0x00007ffff34349b9 in gst_queue_loop (pad=<optimized out>) at gstqueue.c:1483
#8  0x00007ffff4a4bc21 in gst_task_func (task=0xf0a050 [GstTask]) at gsttask.c:331
#9  0x00007ffff5f222fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthreadpool.c:307
#10 0x00007ffff5f21965 in g_thread_proxy (data=0xf07630) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gthread.c:778
#11 0x00007ffff7bc26aa in start_thread (arg=0x7fffefe8f700) at pthread_create.c:333
#12 0x00007ffff78f7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffff7fe5700 (LWP 4920)):
#0  0x00007ffff7bc8149 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x0000000000510e24 in take_gil.lto_priv.1441 (cond=<optimized out>, mut=<optimized out>, us=5000) at ../Python/condvar.h:103
#2  0x0000000000510e24 in take_gil.lto_priv.1441 (tstate=tstate@entry=0xa119a0) at ../Python/ceval_gil.h:224
#3  0x0000000000511433 in PyEval_RestoreThread (tstate=0xa119a0) at ../Python/ceval.c:448
#4  0x00000000005f8717 in PyGILState_Ensure () at ../Python/pystate.c:793
#5  0x00007ffff6671315 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#6  0x00007ffff5caeb7f in ffi_closure_unix64_inner () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#7  0x00007ffff5caeef8 in ffi_closure_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#8  0x00007ffff49ef416 in gst_bus_source_dispatch (source=0xf03f80, callback=0x7ffff7feb010, user_data=0xf04140) at gstbus.c:791
#9  0x00007ffff5efaeaa in g_main_context_dispatch (context=0xf008a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3154
#10 0x00007ffff5efaeaa in g_main_context_dispatch (context=context@entry=0xf008a0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3769
#11 0x00007ffff5efb250 in g_main_context_iterate (context=0xf008a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:3840
#12 0x00007ffff5efb572 in g_main_loop_run (loop=0xc864e0) at /build/glib2.0-ajuDY6/glib2.0-2.46.1/./glib/gmain.c:4034
#13 0x00007ffff5caed90 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#14 0x00007ffff5cae7f8 in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#15 0x00007ffff6673b54 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#16 0x00007ffff6675538 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#17 0x00007ffff66695ee in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-34m-x86_64-linux-gnu.so
#18 0x00000000005bacbe in PyObject_Call (func=<gi.FunctionInfo at remote 0x7ffff47937a0>, arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2040
#19 0x0000000000515fee in PyEval_EvalFrameEx (nk=<optimized out>, na=0, pp_stack=0x7fffffffdad0, func=<optimized out>) at ../Python/ceval.c:4466
#20 0x0000000000515fee in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fffffffdad0) at ../Python/ceval.c:4264
#21 0x0000000000515fee in PyEval_EvalFrameEx (f=f@entry=Frame 0x7ffff696f588, for file /usr/lib/python3/dist-packages/gi/overrides/GLib.py, line 572, in run (self=<MainLoop at remote 0x7ffff4774828>), throwflag=0) at ../Python/ceval.c:2838
#22 0x0000000000519fc6 in PyEval_EvalCodeEx (_co=<code at remote 0x7ffff4deec90>, globals=<optimized out>, locals=0x0, args=<optimized out>, argcount=<optimized out>, kws=0xbfcd60, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=(<cell at remote 0x7ffff68a0f48>,)) at ../Python/ceval.c:3588
#23 0x0000000000516625 in PyEval_EvalFrameEx (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffdca0, func=<optimized out>) at ../Python/ceval.c:4344
#24 0x0000000000516625 in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fffffffdca0) at ../Python/ceval.c:4262
#25 0x0000000000516625 in PyEval_EvalFrameEx (f=f@entry=Frame 0xbfcb68, for file gst.py, line 250, in __init__ (self=<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at r...(truncated), throwflag=0) at ../Python/ceval.c:2838
#26 0x0000000000519757 in PyEval_EvalCodeEx (_co=<code at remote 0x7ffff7e42390>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=<optimized out>, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3588
#27 0x00000000004c88ae in function_call.lto_priv.505 (func=<function at remote 0x7ffff477b158>, arg=(<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at remote 0x7ffff47858b8>, screen_ssrc=None, base_time=135732674...(truncated), kw=<optimized out>) at ../Objects/funcobject.c:632
#28 0x00000000004cf143 in method_call.lto_priv.424 (kw=0x0, arg=(<App(aacparse=<__main__.GstAacParse at remote 0x7ffff4785bd0>, mp4mux_audio_queue=<__main__.GstQueue at remote 0x7ffff4785ee8>, videoconvert=<__main__.GstVideoConvert at remote 0x7ffff4785cf0>, rtpbin=<__main__.GstRtpBin at remote 0x7ffff477edc8>, compositor_screen_pad=None, decodebin=<__main__.GstDecodeBin at remote 0x7ffff477eee8>, mp4mux=<__main__.GstMP4Mux at remote 0x7ffff478b2d0>, decodebin_audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff4785360>, audioresample=<__main__.GstAudioResample at remote 0x7ffff47856c0>, event_eof=False, mp4mux_video_queue=<__main__.GstQueue at remote 0x7ffff4785f30>, rtp_file=<_io.BufferedReader at remote 0x7ffff68dff68>, audio_capsfilter=<__main__.GstCapsFilter at remote 0x7ffff47854c8>, loop=<MainLoop at remote 0x7ffff4774828>, filesrc=<__main__.GstFileSrc at remote 0x7ffff477ee58>, compositor_mkv_pad=<__main__.GstCompositorPad at remote 0x7fffdc0ac240>, rtp_eof=False, voaacenc=<__main__.GstVoAacEnc at remote 0x7ffff47858b8>, screen_ssrc=None, base_time=135732674...(truncated), func=<function at remote 0x7ffff477b158>) at ../Objects/abstract.c:2040
#29 0x00000000004cf143 in method_call.lto_priv.424 (func=<function at remote 0x7ffff477b158>, arg=<optimized out>, kw=0x0) at ../Objects/classobject.c:347
#30 0x0000000000583811 in slot_tp_init (kw=0x0, arg=(), func=<method at remote 0x7ffff7f2dac8>) at ../Objects/abstract.c:2040
#31 0x0000000000583811 in slot_tp_init (self=<optimized out>, args=(), kwds=0x0) at ../Objects/typeobject.c:6180
#32 0x0000000000559cac in type_call.lto_priv.82 (type=<optimized out>, args=(), kwds=0x0) at ../Objects/typeobject.c:898
#33 0x00000000005bacbe in PyObject_Call (func=<type at remote 0xc7b5c8>, arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2040
#34 0x0000000000515fee in PyEval_EvalFrameEx (nk=<optimized out>, na=0, pp_stack=0x7fffffffdfa0, func=<optimized out>) at ../Python/ceval.c:4466
#35 0x0000000000515fee in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fffffffdfa0) at ../Python/ceval.c:4264
#36 0x0000000000515fee in PyEval_EvalFrameEx (f=f@entry=Frame 0x7ffff69ad958, for file gst.py, line 728, in run (), throwflag=0) at ../Python/ceval.c:2838
#37 0x0000000000515c2f in PyEval_EvalFrameEx (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffe0a0, func=<optimized out>) at ../Python/ceval.c:4334
#38 0x0000000000515c2f in PyEval_EvalFrameEx (oparg=<optimized out>, pp_stack=0x7fffffffe0a0) at ../Python/ceval.c:4262
#39 0x0000000000515c2f in PyEval_EvalFrameEx (f=f@entry=Frame 0x7ffff7f49438, for file gst.py, line 731, in <module> (), throwflag=0) at ../Python/ceval.c:2838
#40 0x0000000000519757 in PyEval_EvalCodeEx (_co=<code at remote 0x7ffff7e42e40>, globals=<optimized out>, locals=<optimized out>, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3588
#41 0x00000000005ee4cb in PyEval_EvalCode (co=<optimized out>, globals=<optimized out>, locals=<optimized out>) at ../Python/ceval.c:775
#42 0x00000000005f7452 in run_mod (mod=<optimized out>, filename=<optimized out>, globals={'GstAudioDecoder': <GObjectMeta(__gtype__=<gobject.GType at remote 0x7ffff4787558>, __module__='gi.overrides.Gst', __doc__=<gobject.GObject.__doc__ at remote 0x7ffff7f26090>, __gsignals__={}) at remote 0x7fff70013e98>, 'Gio': <GioProxyModule(DBusProxy=<GObjectMeta(__getattr__=<function at remote 0x7ffff4d69e18>, __module__='gi.overrides.Gio', __doc__="Provide comfortable and pythonic method calls.\n\n    This marshalls the method arguments into a GVariant, invokes the\n    call_sync() method on the DBusProxy object, and unmarshalls the result\n    GVariant back into a Python tuple.\n\n    The first argument always needs to be the D-Bus signature tuple of the\n    method call. Example:\n\n      proxy = Gio.DBusProxy.new_sync(...)\n      result = proxy.MyMethod('(is)', 42, 'hello')\n\n    The exception are methods which take no arguments, like\n    proxy.MyMethod('()'). For these you can omit the signature and just write\n    proxy.MyMethod().\n\n    Optional keyword arguments:\n\n    - timeout: timeout for th...(truncated), locals={'GstAudioDecoder': <GObjectMeta(__gtype__=<gobject.GType at remote 0x7ffff4787558>, __module__='gi.overrides.Gst', __doc__=<gobject.GObject.__doc__ at remote 0x7ffff7f26090>, __gsignals__={}) at remote 0x7fff70013e98>, 'Gio': <GioProxyModule(DBusProxy=<GObjectMeta(__getattr__=<function at remote 0x7ffff4d69e18>, __module__='gi.overrides.Gio', __doc__="Provide comfortable and pythonic method calls.\n\n    This marshalls the method arguments into a GVariant, invokes the\n    call_sync() method on the DBusProxy object, and unmarshalls the result\n    GVariant back into a Python tuple.\n\n    The first argument always needs to be the D-Bus signature tuple of the\n    method call. Example:\n\n      proxy = Gio.DBusProxy.new_sync(...)\n      result = proxy.MyMethod('(is)', 42, 'hello')\n\n    The exception are methods which take no arguments, like\n    proxy.MyMethod('()'). For these you can omit the signature and just write\n    proxy.MyMethod().\n\n    Optional keyword arguments:\n\n    - timeout: timeout for th...(truncated), flags=<optimized out>, arena=<optimized out>) at ../Python/pythonrun.c:2175
#43 0x00000000005f958a in PyRun_FileExFlags (fp=0xa748e0, filename_str=0x7ffff7f987f8 "gst.py", start=257, globals={'GstAudioDecoder': <GObjectMeta(__gtype__=<gobject.GType at remote 0x7ffff4787558>, __module__='gi.overrides.Gst', __doc__=<gobject.GObject.__doc__ at remote 0x7ffff7f26090>, __gsignals__={}) at remote 0x7fff70013e98>, 'Gio': <GioProxyModule(DBusProxy=<GObjectMeta(__getattr__=<function at remote 0x7ffff4d69e18>, __module__='gi.overrides.Gio', __doc__="Provide comfortable and pythonic method calls.\n\n    This marshalls the method arguments into a GVariant, invokes the\n    call_sync() method on the DBusProxy object, and unmarshalls the result\n    GVariant back into a Python tuple.\n\n    The first argument always needs to be the D-Bus signature tuple of the\n    method call. Example:\n\n      proxy = Gio.DBusProxy.new_sync(...)\n      result = proxy.MyMethod('(is)', 42, 'hello')\n\n    The exception are methods which take no arguments, like\n    proxy.MyMethod('()'). For these you can omit the signature and just write\n    proxy.MyMethod().\n\n    Optional keyword arguments:\n\n    - timeout: timeout for th...(truncated), locals={'GstAudioDecoder': <GObjectMeta(__gtype__=<gobject.GType at remote 0x7ffff4787558>, __module__='gi.overrides.Gst', __doc__=<gobject.GObject.__doc__ at remote 0x7ffff7f26090>, __gsignals__={}) at remote 0x7fff70013e98>, 'Gio': <GioProxyModule(DBusProxy=<GObjectMeta(__getattr__=<function at remote 0x7ffff4d69e18>, __module__='gi.overrides.Gio', __doc__="Provide comfortable and pythonic method calls.\n\n    This marshalls the method arguments into a GVariant, invokes the\n    call_sync() method on the DBusProxy object, and unmarshalls the result\n    GVariant back into a Python tuple.\n\n    The first argument always needs to be the D-Bus signature tuple of the\n    method call. Example:\n\n      proxy = Gio.DBusProxy.new_sync(...)\n      result = proxy.MyMethod('(is)', 42, 'hello')\n\n    The exception are methods which take no arguments, like\n    proxy.MyMethod('()'). For these you can omit the signature and just write\n    proxy.MyMethod().\n\n    Optional keyword arguments:\n\n    - timeout: timeout for th...(truncated), closeit=1, flags=0x7fffffffe300) at ../Python/pythonrun.c:2128
#44 0x00000000005f9d3d in PyRun_SimpleFileExFlags (fp=0xa748e0, filename=<optimized out>, closeit=1, flags=0x7fffffffe300) at ../Python/pythonrun.c:1601
#45 0x0000000000619235 in Py_Main (p_cf=0x7fffffffe300, filename=<optimized out>, fp=0xa748e0) at ../Modules/main.c:319
#46 0x0000000000619235 in Py_Main (argc=2, argv=0xa0f010) at ../Modules/main.c:751
#47 0x00000000004c27df in main (argc=2, argv=<optimized out>) at ../Modules/python.c:69
#48 0x00007ffff7811a40 in __libc_start_main (main=0x4c2700 <main>, argc=2, argv=0x7fffffffe518, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe508)
    at libc-start.c:289
#49 0x00000000005bdf09 in _start ()