(gdb) thread apply all bt

Thread 16 (Thread 0x7f9c95293700 (LWP 9274)):
#0  0x00007f9ca46797dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9ca4f13ea4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f9c900010e0, timeout=-1, context=0x1c51650) at gmain.c:4029
#2  g_main_context_iterate (context=context@entry=0x1c51650, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3729
#3  0x00007f9ca4f13fbc in g_main_context_iteration (context=context@entry=0x1c51650, may_block=may_block@entry=1) at gmain.c:3795
#4  0x00007f9c95bfe28d in dconf_gdbus_worker_thread (user_data=0x1c51650) at dconf-gdbus-thread.c:82
#5  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x1c3f0f0) at gthread.c:764
#6  0x00007f9ca494e5fa in start_thread (arg=0x7f9c95293700) at pthread_create.c:310
#7  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f9c94a92700 (LWP 9275)):
#0  0x00007f9ca46797dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9ca4f13ea4 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f9c880010c0, timeout=-1, context=0x7f9c90010030) at gmain.c:4029
#2  g_main_context_iterate (context=0x7f9c90010030, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3729
#3  0x00007f9ca4f14232 in g_main_loop_run (loop=0x7f9c9000ffc0) at gmain.c:3928
#4  0x00007f9ca55377a6 in gdbus_shared_thread_func (user_data=0x7f9c90010000) at gdbusprivate.c:273
#5  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x1c3f6d0) at gthread.c:764
#6  0x00007f9ca494e5fa in start_thread (arg=0x7f9c94a92700) at pthread_create.c:310
#7  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f9c87fff700 (LWP 9276)):
#0  0x00007f9ca46797dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9ca4f13ea4 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f9c800008c0, timeout=-1, context=0x38d1300) at gmain.c:4029
#2  g_main_context_iterate (context=context@entry=0x38d1300, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3729
#3  0x00007f9ca4f13fbc in g_main_context_iteration (context=0x38d1300, may_block=may_block@entry=1) at gmain.c:3795
#4  0x00007f9ca4f13ff9 in glib_worker_main (data=<optimized out>) at gmain.c:5542
#5  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x35e1990) at gthread.c:764
#6  0x00007f9ca494e5fa in start_thread (arg=0x7f9c87fff700) at pthread_create.c:310
#7  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f9c877fe700 (LWP 9277)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f58637 in g_cond_wait_until (cond=cond@entry=0x1c43d98, mutex=mutex@entry=0x1c43d90, end_time=end_time@entry=20294606152)
---Type <return> to continue, or q <return> to quit---
    at gthread-posix.c:1437
#2  0x00007f9ca4ee8c39 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x1c43d90, wait=wait@entry=1, end_time=end_time@entry=20294606152)
    at gasyncqueue.c:422
#3  0x00007f9ca4ee925b in g_async_queue_timeout_pop (queue=0x1c43d90, timeout=timeout@entry=15000000) at gasyncqueue.c:543
#4  0x00007f9ca4f3b3fc in g_thread_pool_wait_for_new_pool () at gthreadpool.c:167
#5  g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:364
#6  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x35e1b20) at gthread.c:764
#7  0x00007f9ca494e5fa in start_thread (arg=0x7f9c877fe700) at pthread_create.c:310
#8  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f9c77fff700 (LWP 9278)):
#0  0x00007f9ca46797dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9c7e973bf1 in poll (__timeout=-1, __nfds=2, __fds=0x7f9c6c0049d0) at /usr/include/bits/poll2.h:46
#2  poll_func (ufds=0x7f9c6c0049d0, nfds=2, timeout=-1, userdata=0x3797e30) at pulse/thread-mainloop.c:71
#3  0x00007f9c7e9651a1 in pa_mainloop_poll (m=<optimized out>) at pulse/mainloop.c:851
#4  0x00007f9c7e96583e in pa_mainloop_iterate (m=<optimized out>, block=<optimized out>, retval=<optimized out>) at pulse/mainloop.c:933
#5  0x00007f9c7e9658f0 in pa_mainloop_run (m=<optimized out>, retval=<optimized out>) at pulse/mainloop.c:951
#6  0x00007f9c7e973b86 in thread (userdata=0x3799640) at pulse/thread-mainloop.c:90
#7  0x00007f9c7e50b888 in internal_thread_func (userdata=0x3799470) at pulsecore/thread-posix.c:83
#8  0x00007f9ca494e5fa in start_thread (arg=0x7f9c77fff700) at pthread_create.c:310
#9  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f9c737fd700 (LWP 9279)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f5851c in g_cond_wait (cond=0x37e2770, mutex=0x37e2728) at gthread-posix.c:1390
#2  0x00007f9caae87f71 in gst_task_func (task=0x37e2710) at gsttask.c:302
#3  0x00007f9ca4f3b338 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:307
#4  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x3d3d5e0) at gthread.c:764
#5  0x00007f9ca494e5fa in start_thread (arg=0x7f9c737fd700) at pthread_create.c:310
#6  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f9c72ded700 (LWP 9281)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f5851c in g_cond_wait (cond=0x3d7d9f0, mutex=0x3d7d9c8) at gthread-posix.c:1390
---Type <return> to continue, or q <return> to quit---
#2  0x00007f9cab145cea in gst_data_queue_push (queue=0x3d7da20, item=0x7f9c68432c30) at gstdataqueue.c:519
#3  0x00007f9c8d29e784 in gst_multi_queue_chain (pad=0x3d7d9f8, parent=0x0, buffer=0xffffffffffffffff) at gstmultiqueue.c:1532
#4  0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#5  gst_pad_push_data (pad=0x3d98e00, type=2368333504, data=0x7f9c68438630) at gstpad.c:4069
#6  0x00007f9c7c0ceb71 in gst_avi_demux_loop_data (avi=<optimized out>) at gstavidemux.c:5244
#7  gst_avi_demux_loop (pad=0x3d7d9f8) at gstavidemux.c:5623
#8  0x00007f9caae87d16 in gst_task_func (task=0x37e2950) at gsttask.c:317
#9  0x00007f9ca4f3b338 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:307
#10 0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x7f9c640cb230) at gthread.c:764
#11 0x00007f9ca494e5fa in start_thread (arg=0x7f9c72ded700) at pthread_create.c:310
#12 0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f9c725ec700 (LWP 9282)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f5851c in g_cond_wait (cond=0x7f9c683f68e8, mutex=0x7f9c683f68c0) at gthread-posix.c:1390
#2  0x00007f9c8d2a48b5 in gst_queue_chain (pad=0x7f9c683f68f0, parent=0x7f9c683f6640, buffer=0x0) at gstqueue.c:1028
#3  0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#4  gst_pad_push_data (pad=0x7f9c5c066960, type=2368357520, data=0x7f9c68425470) at gstpad.c:4069
#5  0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x7f9c5c066960, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#6  0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x7f9c5c0745b0, parent=<optimized out>, buffer=0x7f9c68425470) at gstghostpad.c:126
#7  0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#8  gst_pad_push_data (pad=0x7f9c5c074a70, type=2867111712, data=0x7f9c68425470) at gstpad.c:4069
#9  0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x7f9c5c074a70, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#10 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x7f9c5c066de0, parent=<optimized out>, buffer=0x7f9c68425470) at gstghostpad.c:126
#11 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#12 gst_pad_push_data (pad=0x7f9c5c0a8550, type=2867111712, data=0x7f9c68425470) at gstpad.c:4069
#13 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#14 gst_pad_push_data (pad=0x7f9c5c0a80f0, type=1400403104, data=0x7f9c68425470) at gstpad.c:4069
#15 0x00007f9cab13aaa4 in gst_base_transform_chain (pad=0x7f9c683f68f0, parent=0x7f9c5c0a68d0, buffer=0x0) at gstbasetransform.c:2260
#16 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#17 gst_pad_push_data (pad=0x7f9c5c066ba0, type=2870192224, data=0x7f9c68425470) at gstpad.c:4069
#18 0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x7f9c5c066ba0, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#19 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x7f9c5c074810, parent=<optimized out>, buffer=0x7f9c68425470) at gstghostpad.c:126
#20 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
---Type <return> to continue, or q <return> to quit---
#21 gst_pad_push_data (pad=0x7f9c5c06dae0, type=2867111712, data=0x7f9c68425470) at gstpad.c:4069
#22 0x00007f9c8db3d9ee in gst_stream_synchronizer_sink_chain (pad=0x7f9c5c06d8b0, parent=0x1d66a30, buffer=0x7f9c68425470)
    at gststreamsynchronizer.c:577
#23 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#24 gst_pad_push_data (pad=0x7f9c5c0662a0, type=2377372720, data=0x7f9c68425470) at gstpad.c:4069
#25 0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x7f9c5c0662a0, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#26 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x3d95da0, parent=<optimized out>, buffer=0x7f9c68425470) at gstghostpad.c:126
#27 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#28 gst_pad_push_data (pad=0x7f9c68014bb0, type=2867111712, data=0x7f9c68425470) at gstpad.c:4069
#29 0x00007f9c8d298508 in gst_selector_pad_chain (pad=0x7f9c68402320, parent=0x3d2dd20, buf=0x7f9c68425470) at gstinputselector.c:1098
#30 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#31 gst_pad_push_data (pad=0x3d95680, type=2368304592, data=0x7f9c68425470) at gstpad.c:4069
#32 0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x3d95680, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#33 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x344fb70, parent=<optimized out>, buffer=0x7f9c68425470) at gstghostpad.c:126
#34 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#35 gst_pad_push_data (pad=0x1c3cb00, type=2867111712, data=0x7f9c68425470) at gstpad.c:4069
#36 0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x1c3cb00, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#37 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x344e970, parent=<optimized out>, buffer=0x7f9c68425470) at gstghostpad.c:126
#38 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#39 gst_pad_push_data (pad=0x7f9c68015010, type=2867111712, data=0x7f9c68425470) at gstpad.c:4069
#40 0x00007f9caae60c26 in gst_pad_push (pad=<optimized out>, buffer=buffer@entry=0x7f9c68425470) at gstpad.c:4180
#41 0x00007f9cab599b17 in gst_video_decoder_clip_and_push_buf (decoder=0x7f9c5c051190, buf=0x7f9c68425470) at gstvideodecoder.c:2806
#42 0x00007f9cab59fcb7 in gst_video_decoder_finish_frame (decoder=0x7f9c5c051190, frame=0x7f9c68425690) at gstvideodecoder.c:2712
#43 0x00007f9c5a15cc39 in gst_ffmpegviddec_video_frame () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#44 0x00007f9c5a15cf66 in gst_ffmpegviddec_frame () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#45 0x00007f9c5a15de7b in gst_ffmpegviddec_handle_frame () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#46 0x00007f9cab59873c in gst_video_decoder_decode_frame (decoder=0x7f9c5c051190, frame=0x7f9c6841f880) at gstvideodecoder.c:3008
#47 0x00007f9cab598bfd in gst_video_decoder_chain_forward (decoder=0x7f9c5c051190, buf=0x7f9c6801a0a0, at_eos=0) at gstvideodecoder.c:1875
#48 0x00007f9cab59b46d in gst_video_decoder_chain (pad=0x7f9c683f68f0, parent=0x7f9c5c051190, buf=0x7f9c6801a0a0) at gstvideodecoder.c:2176
#49 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#50 gst_pad_push_data (pad=0x3d998f0, type=2874781600, data=0x7f9c6801a0a0) at gstpad.c:4069
#51 0x00007f9cab11b133 in gst_base_parse_push_frame (parse=0x7f9c6800cb60, frame=0x7f9c5c0c6d40) at gstbaseparse.c:2302
#52 0x00007f9cab11e81f in gst_base_parse_handle_and_push_frame (frame=<optimized out>, parse=<optimized out>) at gstbaseparse.c:2134
#53 gst_base_parse_finish_frame (parse=0x7f9c6800cb60, frame=0x7f9c5c0c6d40, size=1744937120) at gstbaseparse.c:2459
---Type <return> to continue, or q <return> to quit---
#54 0x00007f9c71bd5e29 in gst_mpeg4vparse_handle_frame (parse=0x7f9c6800cb60, frame=0x7f9c5c0c6d40, skipsize=0x6) at gstmpeg4videoparse.c:541
#55 0x00007f9cab117672 in gst_base_parse_handle_buffer (parse=0x7f9c6800cb60, buffer=0x7f9c6841faa0, skip=0x7f9c725eb9e8, flushed=0x7f9c725eb9ec)
    at gstbaseparse.c:1961
#56 0x00007f9cab11bc39 in gst_base_parse_chain (pad=0x7f9c683f68f0, parent=0x7f9c6800cb60, buffer=0x6) at gstbaseparse.c:2897
#57 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#58 gst_pad_push_data (pad=0x3d99490, type=2870064848, data=0x7f9c6801a1b0) at gstpad.c:4069
#59 0x00007f9c8d29fa86 in gst_single_queue_push_one (object=<optimized out>, sq=<optimized out>, mq=<optimized out>) at gstmultiqueue.c:1150
#60 gst_multi_queue_loop (pad=0x7f9c683f68f0) at gstmultiqueue.c:1399
#61 0x00007f9caae87d16 in gst_task_func (task=0x37e2ef0) at gsttask.c:317
#62 0x00007f9ca4f3b338 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:307
#63 0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x7f9c68005b20) at gthread.c:764
#64 0x00007f9ca494e5fa in start_thread (arg=0x7f9c725ec700) at pthread_create.c:310
#65 0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f9c71983700 (LWP 9283)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f5851c in g_cond_wait (cond=0x7f9c6800a0b0, mutex=0x7f9c6800a068) at gthread-posix.c:1390
#2  0x00007f9caae87f71 in gst_task_func (task=0x7f9c6800a050) at gsttask.c:302
#3  0x00007f9ca4f3b338 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:307
#4  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x7f9c68005c00) at gthread.c:764
#5  0x00007f9ca494e5fa in start_thread (arg=0x7f9c71983700) at pthread_create.c:310
#6  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f9c5a0cb700 (LWP 9284)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9c5a3c532d in frame_worker_thread () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#2  0x00007f9ca494e5fa in start_thread (arg=0x7f9c5a0cb700) at pthread_create.c:310
#3  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f9c598ca700 (LWP 9285)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9c5a3c532d in frame_worker_thread () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#2  0x00007f9ca494e5fa in start_thread (arg=0x7f9c598ca700) at pthread_create.c:310
#3  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
---Type <return> to continue, or q <return> to quit---

Thread 5 (Thread 0x7f9c590c9700 (LWP 9286)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9c5a3c532d in frame_worker_thread () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#2  0x00007f9ca494e5fa in start_thread (arg=0x7f9c590c9700) at pthread_create.c:310
#3  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f9c588c8700 (LWP 9287)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9c5a3c532d in frame_worker_thread () from /usr/lib64/gstreamer-1.0/libgstlibav.so
#2  0x00007f9ca494e5fa in start_thread (arg=0x7f9c588c8700) at pthread_create.c:310
#3  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9c5377b700 (LWP 9288)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f5851c in g_cond_wait (cond=0x3445650, mutex=0x3445648) at gthread-posix.c:1390
#2  0x00007f9cab129157 in gst_base_sink_wait_preroll (sink=0x3445520) at gstbasesink.c:2151
#3  0x00007f9cab129730 in gst_base_sink_do_preroll (sink=0x3445520, obj=0x7f9c68425cf0) at gstbasesink.c:2241
#4  0x00007f9cab129feb in gst_base_sink_do_sync (basesink=0x3445520, obj=0x7f9c68425cf0, late=0x0, step_end=0xffffffffffffffff) at gstbasesink.c:2443
#5  0x00007f9cab12b0d2 in gst_base_sink_chain_unlocked (basesink=0x3445520, obj=0x7f9c68425cf0, is_list=is_list@entry=0, pad=<optimized out>)
    at gstbasesink.c:3385
#6  0x00007f9cab12cb64 in gst_base_sink_chain_main (basesink=0x3445520, pad=<optimized out>, obj=0x7f9c68425cf0, is_list=0) at gstbasesink.c:3533
#7  0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#8  gst_pad_push_data (pad=0x7f9c5c074350, type=2870135936, data=0x7f9c68425cf0) at gstpad.c:4069
#9  0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x7f9c5c074350, buffer=buffer@entry=0x7f9c68425cf0) at gstpad.c:4180
#10 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x7f9c5c066720, parent=<optimized out>, buffer=0x7f9c68425cf0) at gstghostpad.c:126
#11 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#12 gst_pad_push_data (pad=0x7f9c5c06d680, type=2867111712, data=0x7f9c68425cf0) at gstpad.c:4069
#13 0x00007f9cab13aaa4 in gst_base_transform_chain (pad=0x3445658, parent=0x7f9c5c0a4470, buffer=0x0) at gstbasetransform.c:2260
#14 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#15 gst_pad_push_data (pad=0x7f9c5c06c960, type=2870192224, data=0x7f9c68425cf0) at gstpad.c:4069
#16 0x00007f9cab13aaa4 in gst_base_transform_chain (pad=0x3445658, parent=0x7f9c5c07a0d0, buffer=0x0) at gstbasetransform.c:2260
#17 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#18 gst_pad_push_data (pad=0x7f9c5c06cdc0, type=2870192224, data=0x7f9c68425cf0) at gstpad.c:4069
---Type <return> to continue, or q <return> to quit---
#19 0x00007f9cab13aaa4 in gst_base_transform_chain (pad=0x3445658, parent=0x7f9c5c0a3eb0, buffer=0x0) at gstbasetransform.c:2260
#20 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#21 gst_pad_push_data (pad=0x7f9c5c06d220, type=2870192224, data=0x7f9c68425cf0) at gstpad.c:4069
#22 0x00007f9cab13aaa4 in gst_base_transform_chain (pad=0x3445658, parent=0x7f9c5c0a10d0, buffer=0x0) at gstbasetransform.c:2260
#23 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#24 gst_pad_push_data (pad=0x7f9c5c0664e0, type=2870192224, data=0x7f9c68425cf0) at gstpad.c:4069
#25 0x00007f9caae60c26 in gst_pad_push (pad=pad@entry=0x7f9c5c0664e0, buffer=buffer@entry=0x7f9c68425cf0) at gstpad.c:4180
#26 0x00007f9caae4a7d3 in gst_proxy_pad_chain_default (pad=0x7f9c5c0740f0, parent=<optimized out>, buffer=0x7f9c68425cf0) at gstghostpad.c:126
#27 0x00007f9caae59d0e in gst_pad_chain_data_unchecked (data=<optimized out>, type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#28 gst_pad_push_data (pad=0x7f9c5c06c0a0, type=2867111712, data=0x7f9c68425cf0) at gstpad.c:4069
#29 0x00007f9c8d2a3908 in gst_queue_push_one (queue=<optimized out>) at gstqueue.c:1132
#30 gst_queue_loop (pad=0x3445658) at gstqueue.c:1261
#31 0x00007f9caae87d16 in gst_task_func (task=0x7f9c6800a4d0) at gsttask.c:317
#32 0x00007f9ca4f3b338 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:307
#33 0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x7f9c60002e80) at gthread.c:764
#34 0x00007f9ca494e5fa in start_thread (arg=0x7f9c5377b700) at pthread_create.c:310
#35 0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f9c52741700 (LWP 9289)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9ca4f5851c in g_cond_wait (cond=0x7f9c683f6bc0, mutex=0x7f9c683f6bb0) at gthread-posix.c:1390
#2  0x00007f9c8d2a3205 in gst_queue_loop (pad=0x7f9c683f6bc8) at gstqueue.c:1249
#3  0x00007f9caae87d16 in gst_task_func (task=0x7f9c6800a5f0) at gsttask.c:317
#4  0x00007f9ca4f3b338 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:307
#5  0x00007f9ca4f3a9a5 in g_thread_proxy (data=0x7f9c5c0c68a0) at gthread.c:764
#6  0x00007f9ca494e5fa in start_thread (arg=0x7f9c52741700) at pthread_create.c:310
#7  0x00007f9ca4684e0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9cac5c19c0 (LWP 9273)):
#0  0x00007f9ca46797dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9ca4f13ea4 in g_main_context_poll (priority=2147483647, n_fds=4, fds=0x1ef45b0, timeout=4460, context=0x1c3e6c0) at gmain.c:4029
#2  g_main_context_iterate (context=context@entry=0x1c3e6c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3729
#3  0x00007f9ca4f13fbc in g_main_context_iteration (context=0x1c3e6c0, context@entry=0x0, may_block=may_block@entry=1) at gmain.c:3795
#4  0x00007f9ca54ffffc in g_application_run (application=0x1c3c190, argc=argc@entry=2, argv=argv@entry=0x7fffe5456958) at gapplication.c:2219
---Type <return> to continue, or q <return> to quit---
#5  0x00000000004023b5 in main (argc=2, argv=0x7fffe5456958) at totem.c:266

