[Bug 741723] Occasional failure to terminate a pipeline with uridecodebin on a matroska file

Fri Sep 23 09:22:18 UTC 2016

https://bugzilla.gnome.org/show_bug.cgi?id=741723

--- Comment #5 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> ---
With a loop doing this over and over again, I've seen it happen after minutes
of runtime (about 1 second per run), just as I was writing a post saying
"doesn't happen anymore". Adding logs make it go away.

Thread 26 (Thread 0x7f86b6f19700 (LWP 25278)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86c085676d in gst_task_func (task=0x2645170) at gsttask.c:319
#3  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#4  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f86b6718700 (LWP 25279)):
#0  0x00007f86bf42bb7d in poll () at /lib64/libc.so.6
#1  0x00007f86bfd6a18c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f86bfd6a29c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f86bfd6a2d9 in glib_worker_main () at /lib64/libglib-2.0.so.0
#4  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f86b4c64700 (LWP 25280)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86c085676d in gst_task_func (task=0x2645710) at gsttask.c:319
#3  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#4  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f86a7fff700 (LWP 25281)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x263bd00) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x263bd00,
item=item at entry=0x7f86a7ffee48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x2645b90) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f86a75ba700 (LWP 25282)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x263bdc0) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x263bdc0,
item=item at entry=0x7f86a75b9e48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x2645dd0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f86a66dc700 (LWP 25283)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x263be80) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x263be80,
item=item at entry=0x7f86a66dbe48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e170) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f86a5cc6700 (LWP 25284)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x263bf40) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x263bf40,
item=item at entry=0x7f86a5cc5e48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e290) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 19 (Thread 0x7f86a54c5700 (LWP 25285)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01c880) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01c880,
item=item at entry=0x7f86a54c4e48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e3b0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f86a4cc4700 (LWP 25286)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01c940) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01c940,
item=item at entry=0x7f86a4cc3e48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e4d0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f868ffff700 (LWP 25287)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01ca00) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01ca00,
item=item at entry=0x7f868fffee48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e5f0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f868f7fe700 (LWP 25288)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
---Type <return> to continue, or q <return> to quit---
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01cac0) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01cac0,
item=item at entry=0x7f868f7fde48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e710) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f868effd700 (LWP 25289)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01cb80) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01cb80,
item=item at entry=0x7f868effce48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e830) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f868e7fc700 (LWP 25290)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01cc40) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01cc40,
item=item at entry=0x7f868e7fbe48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01e950) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f868dffb700 (LWP 25291)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01cd00) at gstdataqueue.c:553
---Type <return> to continue, or q <return> to quit---
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01cd00,
item=item at entry=0x7f868dffae48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01ea70) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f868d7fa700 (LWP 25292)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01cdc0) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01cdc0,
item=item at entry=0x7f868d7f9e48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01eb90) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f868cff9700 (LWP 25293)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01ce80) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01ce80,
item=item at entry=0x7f868cff8e48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01ecb0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f866bfff700 (LWP 25294)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac01cf40) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac01cf40,
item=item at entry=0x7f866bffee48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
---Type <return> to continue, or q <return> to quit---
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01edd0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f866b7fe700 (LWP 25295)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac054890) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac054890,
item=item at entry=0x7f866b7fde48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac01eef0) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f866affd700 (LWP 25296)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac054950) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac054950,
item=item at entry=0x7f866affce48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac06a050) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f866a7fc700 (LWP 25297)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac054a10) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac054a10,
item=item at entry=0x7f866a7fbe48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac06a170) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f8669ffb700 (LWP 25298)):
#0  0x00007f86bf431809 in syscall () at /lib64/libc.so.6
#1  0x00007f86bfdae8df in g_cond_wait () at /lib64/libglib-2.0.so.0
#2  0x00007f86b7645182 in _gst_data_queue_wait_non_empty
(queue=queue at entry=0x7f86ac054ad0) at gstdataqueue.c:553
#3  0x00007f86b76467d0 in gst_data_queue_pop (queue=0x7f86ac054ad0,
item=item at entry=0x7f8669ffae48) at gstdataqueue.c:595
#4  0x00007f86b6f42f91 in gst_multi_queue_loop (pad=<optimized out>) at
gstmultiqueue.c:1769
#5  0x00007f86c08565e1 in gst_task_func (task=0x7f86ac06a290) at gsttask.c:334
#6  0x00007f86bfd9127e in g_thread_pool_thread_proxy () at
/lib64/libglib-2.0.so.0
#7  0x00007f86bfd908e5 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#8  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f86697fa700 (LWP 25299)):
#0  0x00007f86bf702b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8652d0677e in frame_worker_thread (arg=0x7f86a00562c0) at
libavcodec/pthread_frame.c:137
#2  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#3  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8668ff9700 (LWP 25300)):
#0  0x00007f86bf702b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8652d0677e in frame_worker_thread (arg=0x7f86a0056460) at
libavcodec/pthread_frame.c:137
#2  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#3  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f865268c700 (LWP 25301)):
#0  0x00007f86bf702b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8652d0677e in frame_worker_thread (arg=0x7f86a0056600) at
libavcodec/pthread_frame.c:137
#2  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
#3  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f8651e8b700 (LWP 25302)):
#0  0x00007f86bf702b20 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f8652d0677e in frame_worker_thread (arg=0x7f86a00567a0) at
libavcodec/pthread_frame.c:137
#2  0x00007f86bf6fd61a in start_thread () at /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#3  0x00007f86bf4375fd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f86c0cdf700 (LWP 25277)):
#0  0x00007f86bf42bb7d in poll () at /lib64/libc.so.6
#1  0x00007f86bfd6a18c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f86bfd6a512 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00007f86c07f4509 in gst_bus_poll (bus=bus at entry=0x25f0c00,
events=events at entry=GST_MESSAGE_ANY, timeout=18446744073709551615)
    at gstbus.c:1181
#4  0x00000000004048e8 in event_loop (pipeline=0x2636050,
blocking=blocking at entry=1, do_progress=do_progress at entry=0,
target_state=target_state at entry=GST_STATE_PLAYING) at gst-launch.c:533
#5  0x00000000004039bc in main (argc=7, argv=0x7ffdc58e4a98) at
gst-launch.c:1156

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