Due to the use of {set/get}-element_private methods being used to store
the GstSyncStream in the src and sink pads, and the racey nature of pad
destruction, there are numerous ways we can be bitten by race conditions
in the stream synchronizer. Fix that by tying the pads toghether with
references.
By passing NULL to `g_signal_new` instead of a marshaller, GLib will
actually internally optimize the signal (if the marshaller is available
in GLib itself) by also setting the valist marshaller. This makes the
signal emission a bit more performant than the regular marshalling,
which still needs to box into `GValue` and call libffi in case of a
generic marshaller.
Note that for custom marshallers, one would use
`g_signal_set_va_marshaller()` with the valist marshaller instead.
Protocols that are in the stream_uris list should always
be streams, no matter what they respond to the scheduling
query. The flag in the scheduling query is just another
way to declare something that needs buffering without the
whitelist, the absence of the flag shouldn't make us ignore
our known protocol list.
Also set is_stream always to a boolean and not a mask value.
As expected by the property getter.
Basically there are cases where we can be getting the source from
any thread and in another thread bring back the element from PAUSED
to READY, which leads to a critical warning (or worse).
The only place where we use `->source` outside the property getter is
the change_state function so the current way of setting/reading it
should be safe.
downloadbuffer element doesn't handle the properties low-watermark and
high-watermark, those are handled by queue2.
Currently hi and low watermarks are set regardless queue2 or
downloadbuffer are used. Thus, when the later is set, a warning is
raised.
This patch sets the watermark properties first, if no download.
Follow-up to !160 and commit 6a99ad2c.
Firstly, don't leak the sinkpad. g_weak_ref_get() returns
a strong reference (unless it returns NULL), so that must
be unrefed, as detected by the playbin-complex and
discoverer unit tests.
Next, if we do that we get invalid memory access when the
final pad ref is dropped a few lines below after the
request pad is released. The reason for this is that
GWeakRefs are not movable once they're in use, because
their address will be stored inside the object. In this
case the GWeakRef was embedded inside the GstDemuxerPad
struct which in turn was embedded inside the GArray data
section, and when the GArray gets resized, the structs
move. Just KISS and use a list with individual allocations
for each DemuxerPad instead.
Nothing guarantees that when we free a DecodeGroup the demuxer pads
have already been freed and thus the probes have been removed meaning
that in some case it is possible that the pad probes still get called
*after* the GstDecodeGroup is freed, leading to segfaults (as we use
the freed group in that function).
Sample stack trace when that happens:
#0 sink_pad_query_probe (pad=pad@entry=0x7fe654027180, info=info@entry=0x7ffe433bf270, user_data=0x7fe668076f80) at ../subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c:3004
3004 if (last_group->reqpads) {
[Current thread is 1 (Thread 0x7fe69d8a0880 (LWP 24366))]
Missing separate debuginfos, use: dnf debuginfo-install elfutils-libelf-0.176-1.fc29.x86_64 elfutils-libs-0.176-1.fc29.x86_64 libXcursor-1.1.15-4.fc29.x86_64 libXi-1.7.9-8.fc29.x86_64 libgpg-error-1.33-1.fc29.x86_64 libvpx-1.7.0-7.fc29.x86_64 soundtouch-2.1.1-1.fc29.x86_64
(gdb) bt
#0 0x00007fe68f7f3430 in sink_pad_query_probe (pad=pad@entry=0x7fe654027180 [GstMultiQueuePad], info=info@entry=0x7ffe433bf270, user_data=0x7fe668076f80) at ../subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c:3004
#1 0x00007fe69e79815e in probe_hook_marshal (hook=0x7fe63003a840, data=0x7ffe433bf160) at ../subprojects/gstreamer/gst/gstpad.c:3565
#2 0x00007fe69e5774cc in g_hook_list_marshal (hook_list=hook_list@entry=0x7fe654027218, may_recurse=may_recurse@entry=1, marshaller=marshaller@entry=0x7fe69e797d40 <probe_hook_marshal>, data=data@entry=0x7ffe433bf160) at ghook.c:672
#3 0x00007fe69e797823 in do_probe_callbacks (pad=pad@entry=0x7fe654027180 [GstMultiQueuePad], info=info@entry=0x7ffe433bf270, defaultval=defaultval@entry=GST_FLOW_OK) at ../subprojects/gstreamer/gst/gstpad.c:3727
#4 0x00007fe69e7a25fd in gst_pad_peer_query (pad=pad@entry=0x7fe654027180 [GstMultiQueuePad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4194
#5 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe654027180 [GstMultiQueuePad], data=data@entry=0x7ffe433bf3c0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#6 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6540273d0 [GstPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433bf3c0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#7 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6540273d0 [GstPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#8 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe6540273d0 [GstPad], parent=0x7fe61c035e00 [GstMultiQueue], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#9 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6540273d0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#10 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe648019620 [GstPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#11 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe648019620 [GstPad], data=data@entry=0x7ffe433bf6f0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#12 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe62000a9b0 [GstPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433bf6f0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#13 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=pad@entry=0x7fe62000a9b0 [GstPad], parent=<optimized out>, query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#14 0x00007fe69e0594d6 in gst_video_decoder_src_query_default (dec=0x7fe63001e290 [GstVP8Dec], query=0x7fe67803f140) at ../subprojects/gst-plugins-base/gst-libs/gst/video/gstvideodecoder.c:1684
#15 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe62000a9b0 [GstPad], parent=0x7fe63001e290 [GstVP8Dec], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#16 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe62000a9b0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#17 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe630054300 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#18 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe630054300 [GstProxyPad], data=data@entry=0x7ffe433bfa80) at ../subprojects/gstreamer/gst/gstpad.c:3376
#19 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe660047810 [GstDecodePad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433bfa80) at ../subprojects/gstreamer/gst/gstpad.c:3008
#20 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe660047810 [GstDecodePad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#21 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe660047810 [GstDecodePad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#22 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe654076cf0 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#23 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe654076cf0 [GstProxyPad], data=data@entry=0x7ffe433bfce0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#24 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe668037720 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433bfce0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#25 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe668037720 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#26 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe668037720 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#27 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa762c0 [GstPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#28 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xa762c0 [GstPad], data=data@entry=0x7ffe433bff40) at ../subprojects/gstreamer/gst/gstpad.c:3376
#29 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0xa76510 [GstPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433bff40) at ../subprojects/gstreamer/gst/gstpad.c:3008
#30 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=pad@entry=0xa76510 [GstPad], parent=parent@entry=0x7fe67002b240 [GstQueue], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#31 0x00007fe68f7bd321 in gst_queue_handle_src_query (pad=0xa76510 [GstPad], parent=0x7fe67002b240 [GstQueue], query=0x7fe67803f140) at ../subprojects/gstreamer/plugins/elements/gstqueue.c:1619
#32 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa76510 [GstPad], parent=0x7fe67002b240 [GstQueue], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#33 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa76510 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#34 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa770a0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#35 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa6f4d0 [GstVideoConvert], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#36 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa772f0 [GstPad], parent=0xa6f4d0 [GstVideoConvert], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#37 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa772f0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#38 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa779e0 [GstPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#39 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xa779e0 [GstPad], data=data@entry=0x7ffe433c0550) at ../subprojects/gstreamer/gst/gstpad.c:3376
#40 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0xa77c30 [GstPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c0550) at ../subprojects/gstreamer/gst/gstpad.c:3008
#41 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=pad@entry=0xa77c30 [GstPad], parent=parent@entry=0xa7f800 [GstDeinterlace], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#42 0x00007fe68c0449a7 in gst_deinterlace_src_query (pad=0xa77c30 [GstPad], parent=0xa7f800 [GstDeinterlace], query=0x7fe67803f140) at ../subprojects/gst-plugins-good/gst/deinterlace/gstdeinterlace.c:3265
#43 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa77c30 [GstPad], parent=0xa7f800 [GstDeinterlace], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#44 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa77c30 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#45 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa76760 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#46 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa46860 [GstFramePositioner], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#47 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa769b0 [GstPad], parent=0xa46860 [GstFramePositioner], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#48 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa769b0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#49 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa76c00 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#50 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa7eb20 [GstVideoScale], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#51 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa76e50 [GstPad], parent=0xa7eb20 [GstVideoScale], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#52 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa76e50 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#53 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa77540 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#54 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa6f980 [GstVideoRate], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#55 0x00007fe68f7369f0 in gst_video_rate_query (trans=0xa6f980 [GstVideoRate], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gst-plugins-base/gst/videorate/gstvideorate.c:1115
#56 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa77790 [GstPad], parent=0xa6f980 [GstVideoRate], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#57 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa77790 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#58 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa82120 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#59 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa172a0 [GstCapsFilter], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#60 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa82370 [GstPad], parent=0xa172a0 [GstCapsFilter], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#61 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa82370 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#62 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa44c70 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#63 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xa44c70 [GstProxyPad], data=data@entry=0x7ffe433c13a0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#64 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6700271e0 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c13a0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#65 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6700271e0 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#66 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6700271e0 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#67 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa447b0 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#68 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xa447b0 [GstProxyPad], data=data@entry=0x7ffe433c1600) at ../subprojects/gstreamer/gst/gstpad.c:3376
#69 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe670026f60 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c1600) at ../subprojects/gstreamer/gst/gstpad.c:3008
#70 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe670026f60 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#71 0x00007fe68f54bb18 in ghostpad_query_function (ghostpad=0x7fe670026f60 [GstGhostPad], parent=0xa2a870 [NleSource], query=0x7fe67803f140) at ../subprojects/gst-editing-services/plugins/nle/nleghostpad.c:556
#72 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe670026f60 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#73 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe61c00ab30 [GstGhostPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#74 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe61c00ab30 [GstGhostPad], data=data@entry=0x7ffe433c18c0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#75 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6680ccab0 [GstProxyPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c18c0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#76 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6680ccab0 [GstProxyPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#77 0x00007fe68f54b6a9 in internalpad_query_function (internal=0x7fe6680ccab0 [GstProxyPad], parent=0x7fe61c00ab30 [GstGhostPad], query=0x7fe67803f140) at ../subprojects/gst-editing-services/plugins/nle/nleghostpad.c:448
#78 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6680ccab0 [GstProxyPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#79 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe66800e510 [GESSmartMixerPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#80 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe66800e510 [GESSmartMixerPad], data=data@entry=0x7ffe433c1b80) at ../subprojects/gstreamer/gst/gstpad.c:3376
#81 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6680cc5f0 [GstProxyPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c1b80) at ../subprojects/gstreamer/gst/gstpad.c:3008
#82 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6680cc5f0 [GstProxyPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#83 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6680cc5f0 [GstProxyPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#84 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe66805ee60 [GstGhostPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#85 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe66805ee60 [GstGhostPad], data=data@entry=0x7ffe433c1de0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#86 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe654077d90 [GstProxyPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c1de0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#87 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe654077d90 [GstProxyPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#88 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe654077d90 [GstProxyPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#89 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe654027ac0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#90 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0x7fe6680c71d0 [GstVideoConvert], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#91 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe654026a90 [GstPad], parent=0x7fe6680c71d0 [GstVideoConvert], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#92 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe654026a90 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#93 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe6680cc850 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#94 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe6680cc850 [GstProxyPad], data=data@entry=0x7ffe433c22d0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#95 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6680374a0 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c22d0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#96 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6680374a0 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#97 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6680374a0 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#98 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe6680c7e20 [GstCompositorPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#99 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe6680c7e20 [GstCompositorPad], data=data@entry=0x7ffe433c2530) at ../subprojects/gstreamer/gst/gstpad.c:3376
#100 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0xa24170 [GstAggregatorPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c2530) at ../subprojects/gstreamer/gst/gstpad.c:3008
#101 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0xa24170 [GstAggregatorPad], parent=<optimized out>, query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#102 0x00007fe69e0e5512 in gst_aggregator_default_src_query (self=0xa21e90 [GstCompositor], query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstaggregator.c:1909
#103 0x00007fe69e0547be in gst_video_aggregator_src_query (agg=0xa21e90 [GstCompositor], query=0x7fe67803f140) at ../subprojects/gst-plugins-base/gst-libs/gst/video/gstvideoaggregator.c:2022
#104 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa24170 [GstAggregatorPad], parent=0xa21e90 [GstCompositor], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#105 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa24170 [GstAggregatorPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#106 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x9aac10 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#107 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa28280 [GstIdentity], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#108 0x00007fe68f79dfc4 in gst_identity_query (base=0xa28280 [GstIdentity], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/plugins/elements/gstidentity.c:957
#109 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x9aae60 [GstPad], parent=0xa28280 [GstIdentity], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#110 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9aae60 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#111 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x99cc40 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#112 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x99cc40 [GstProxyPad], data=data@entry=0x7ffe433c2c00) at ../subprojects/gstreamer/gst/gstpad.c:3376
#113 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x9aee40 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c2c00) at ../subprojects/gstreamer/gst/gstpad.c:3008
#114 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x9aee40 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#115 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9aee40 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#116 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x99d100 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#117 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x99d100 [GstProxyPad], data=data@entry=0x7ffe433c2e60) at ../subprojects/gstreamer/gst/gstpad.c:3376
#118 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x9af0c0 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c2e60) at ../subprojects/gstreamer/gst/gstpad.c:3008
#119 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x9af0c0 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#120 0x00007fe68f54bb18 in ghostpad_query_function (ghostpad=0x9af0c0 [GstGhostPad], parent=0x99ce70 [NleOperation], query=0x7fe67803f140) at ../subprojects/gst-editing-services/plugins/nle/nleghostpad.c:556
#121 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9af0c0 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#122 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x99c2c0 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#123 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x99c2c0 [GstProxyPad], data=data@entry=0x7ffe433c3120) at ../subprojects/gstreamer/gst/gstpad.c:3376
#124 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x9ae1c0 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c3120) at ../subprojects/gstreamer/gst/gstpad.c:3008
#125 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x9ae1c0 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#126 0x00007fe68f54bb18 in ghostpad_query_function (ghostpad=0x9ae1c0 [GstGhostPad], parent=0xa16290 [NleComposition], query=0x7fe67803f140) at ../subprojects/gst-editing-services/plugins/nle/nleghostpad.c:556
#127 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9ae1c0 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#128 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x9aa080 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#129 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0xa165a0 [GstCapsFilter], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#130 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x9aa9c0 [GstPad], parent=0xa165a0 [GstCapsFilter], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#131 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9aa9c0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#132 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x99c9e0 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#133 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x99c9e0 [GstProxyPad], data=data@entry=0x7ffe433c3670) at ../subprojects/gstreamer/gst/gstpad.c:3376
#134 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x9aebc0 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c3670) at ../subprojects/gstreamer/gst/gstpad.c:3008
#135 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x9aebc0 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#136 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9aebc0 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#137 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x99d820 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#138 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x99d820 [GstProxyPad], data=data@entry=0x7ffe433c38d0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#139 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x9af840 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c38d0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#140 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x9af840 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#141 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x9af840 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#142 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe6780247d0 [GstPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#143 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe6780247d0 [GstPad], data=data@entry=0x7ffe433c3b30) at ../subprojects/gstreamer/gst/gstpad.c:3376
#144 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe684032780 [GstTeePad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c3b30) at ../subprojects/gstreamer/gst/gstpad.c:3008
#145 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe684032780 [GstTeePad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#146 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe684032780 [GstTeePad], parent=0x7383f0 [GstTee], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#147 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe684032780 [GstTeePad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#148 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe670026060 [GstGhostPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#149 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe670026060 [GstGhostPad], data=data@entry=0x7ffe433c3e60) at ../subprojects/gstreamer/gst/gstpad.c:3376
#150 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x99dce0 [GstProxyPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c3e60) at ../subprojects/gstreamer/gst/gstpad.c:3008
#151 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x99dce0 [GstProxyPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#152 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x99dce0 [GstProxyPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#153 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa8d6b0 [GstPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#154 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xa8d6b0 [GstPad], data=data@entry=0x7ffe433c40c0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#155 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0xa8d900 [GstPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c40c0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#156 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0xa8d900 [GstPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#157 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0xa8d900 [GstPad], parent=0x9f6060 [GstStreamSynchronizer], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#158 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xa8d900 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#159 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xad5a80 [GstGhostPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#160 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xad5a80 [GstGhostPad], data=data@entry=0x7ffe433c43f0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#161 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6680275b0 [GstProxyPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c43f0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#162 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6680275b0 [GstProxyPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#163 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6680275b0 [GstProxyPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#164 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa39580 [GstPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#165 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xa39580 [GstPad], data=data@entry=0x7ffe433c4650) at ../subprojects/gstreamer/gst/gstpad.c:3376
#166 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6780240e0 [GstPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c4650) at ../subprojects/gstreamer/gst/gstpad.c:3008
#167 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=pad@entry=0x7fe6780240e0 [GstPad], parent=parent@entry=0x7fe66800e7b0 [GstQueue], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#168 0x00007fe68f7bd321 in gst_queue_handle_src_query (pad=0x7fe6780240e0 [GstPad], parent=0x7fe66800e7b0 [GstQueue], query=0x7fe67803f140) at ../subprojects/gstreamer/plugins/elements/gstqueue.c:1619
#169 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe6780240e0 [GstPad], parent=0x7fe66800e7b0 [GstQueue], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#170 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6780240e0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#171 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xad5580 [GstGhostPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#172 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0xad5580 [GstGhostPad], data=data@entry=0x7ffe433c49d0) at ../subprojects/gstreamer/gst/gstpad.c:3376
#173 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0x7fe6680270f0 [GstProxyPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c49d0) at ../subprojects/gstreamer/gst/gstpad.c:3008
#174 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0x7fe6680270f0 [GstProxyPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#175 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe6680270f0 [GstProxyPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#176 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe6780255b0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#177 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0x7fe674032fa0 [GstVideoConvert], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#178 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe678025a50 [GstPad], parent=0x7fe674032fa0 [GstVideoConvert], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#179 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe678025a50 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#180 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe678025800 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#181 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0x7fe6740346d0 [GstVideoScale], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#182 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe678025360 [GstPad], parent=0x7fe6740346d0 [GstVideoScale], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#183 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe678025360 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#184 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe678024580 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#185 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0x7fe674011950 [GstVideoBalance], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#186 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe678025110 [GstPad], parent=0x7fe674011950 [GstVideoBalance], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#187 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe678025110 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#188 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0xa8d460 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#189 0x00007fe69e118c6b in gst_base_transform_default_query (trans=0x7fe674037330 [GstVideoConvert], direction=GST_PAD_SRC, query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasetransform.c:1557
#190 0x00007fe69e6a60e9 in gst_validate_pad_monitor_query_func (pad=0x7fe678024ec0 [GstPad], parent=0x7fe674037330 [GstVideoConvert], query=0x7fe67803f140) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2378
#191 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0x7fe678024ec0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#192 0x00007fe69e7a263b in gst_pad_peer_query (pad=pad@entry=0x7fe668027350 [GstProxyPad], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#193 0x00007fe69e7a2c2c in query_forward_func (pad=pad@entry=0x7fe668027350 [GstProxyPad], data=data@entry=0x7ffe433c5670) at ../subprojects/gstreamer/gst/gstpad.c:3376
#194 0x00007fe69e7a0aae in gst_pad_forward (pad=pad@entry=0xad5800 [GstGhostPad], forward=forward@entry=0x7fe69e7a2b70 <query_forward_func>, user_data=user_data@entry=0x7ffe433c5670) at ../subprojects/gstreamer/gst/gstpad.c:3008
#195 0x00007fe69e7a0ea2 in gst_pad_query_default (pad=0xad5800 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:3447
#196 0x00007fe68f84ad95 in gst_play_sink_convert_bin_query (pad=0xad5800 [GstGhostPad], parent=<optimized out>, query=0x7fe67803f140) at ../subprojects/gst-plugins-base/gst/playback/gstplaysinkconvertbin.c:525
#197 0x00007fe69e7a1ee0 in gst_pad_query (pad=pad@entry=0xad5800 [GstGhostPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4071
#198 0x00007fe69e7a263b in gst_pad_peer_query (pad=0xa380b0 [GstPad], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstpad.c:4203
#199 0x00007fe69e10564c in default_element_query (element=0xa369f0 [GstFakeSink], query=0x7fe67803f140) at ../subprojects/gstreamer/libs/gst/base/gstbasesink.c:5034
#200 0x00007fe69e77f8f0 in gst_element_query (element=0xa369f0 [GstFakeSink], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstelement.c:1959
#201 0x00007fe69e7584f7 in bin_query_generic_fold (vitem=<optimized out>, ret=0x7ffe433c59d0, fold=0x7ffe433c5a60) at ../subprojects/gstreamer/gst/gstbin.c:4232
#202 0x00007fe69e78ffcc in gst_iterator_fold (it=it@entry=0x744820, func=func@entry=0x7fe69e758460 <bin_query_generic_fold>, ret=ret@entry=0x7ffe433c59d0, user_data=user_data@entry=0x7ffe433c5a60) at ../subprojects/gstreamer/gst/gstiterator.c:617
#203 0x00007fe69e758b82 in bin_iterate_fold (bin=bin@entry=0xa19d80 [GstBin], iter=iter@entry=0x744820, fold_init=fold_init@entry=0x0, fold_done=fold_done@entry=0x0, fold_func=fold_func@entry=0x7fe69e758460 <bin_query_generic_fold>, fold_data=fold_data@entry=0x7ffe433c5a60, default_return=0) at ../subprojects/gstreamer/gst/gstbin.c:4259
#204 0x00007fe69e75e776 in gst_bin_query (element=0xa19d80 [GstBin], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstbin.c:4379
#205 0x00007fe69e77f8f0 in gst_element_query (element=0xa19d80 [GstBin], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstelement.c:1959
#206 0x00007fe69e7584f7 in bin_query_generic_fold (vitem=<optimized out>, ret=0x7ffe433c5ba0, fold=0x7ffe433c5c30) at ../subprojects/gstreamer/gst/gstbin.c:4232
#207 0x00007fe69e78ffcc in gst_iterator_fold (it=it@entry=0x744cf0, func=func@entry=0x7fe69e758460 <bin_query_generic_fold>, ret=ret@entry=0x7ffe433c5ba0, user_data=user_data@entry=0x7ffe433c5c30) at ../subprojects/gstreamer/gst/gstiterator.c:617
#208 0x00007fe69e758b82 in bin_iterate_fold (bin=bin@entry=0x9f42e0 [GstPlaySink], iter=iter@entry=0x744cf0, fold_init=fold_init@entry=0x0, fold_done=fold_done@entry=0x0, fold_func=fold_func@entry=0x7fe69e758460 <bin_query_generic_fold>, fold_data=fold_data@entry=0x7ffe433c5c30, default_return=0) at ../subprojects/gstreamer/gst/gstbin.c:4259
#209 0x00007fe69e75e776 in gst_bin_query (element=0x9f42e0 [GstPlaySink], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstbin.c:4379
#210 0x00007fe69e77f8f0 in gst_element_query (element=0x9f42e0 [GstPlaySink], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstelement.c:1959
#211 0x00007fe69e7584f7 in bin_query_generic_fold (vitem=<optimized out>, ret=0x7ffe433c5d70, fold=0x7ffe433c5e00) at ../subprojects/gstreamer/gst/gstbin.c:4232
#212 0x00007fe69e78ffcc in gst_iterator_fold (it=it@entry=0x7448d0, func=func@entry=0x7fe69e758460 <bin_query_generic_fold>, ret=ret@entry=0x7ffe433c5d70, user_data=user_data@entry=0x7ffe433c5e00) at ../subprojects/gstreamer/gst/gstiterator.c:617
#213 0x00007fe69e758b82 in bin_iterate_fold (bin=bin@entry=0x9ee0a0 [GESPipeline], iter=iter@entry=0x7448d0, fold_init=fold_init@entry=0x0, fold_done=fold_done@entry=0x0, fold_func=fold_func@entry=0x7fe69e758460 <bin_query_generic_fold>, fold_data=fold_data@entry=0x7ffe433c5e00, default_return=0) at ../subprojects/gstreamer/gst/gstbin.c:4259
#214 0x00007fe69e75e776 in gst_bin_query (element=0x9ee0a0 [GESPipeline], query=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstbin.c:4379
#215 0x00007fe69e77f8f0 in gst_element_query (element=0x9ee0a0 [GESPipeline], query=query@entry=0x7fe67803f140) at ../subprojects/gstreamer/gst/gstelement.c:1959
#216 0x00007fe69e6b5d01 in _check_position (rate=0x7ffe433c5ee0, position=0x7ffe433c5ee8, act=0xaa82a0, scenario=0x9fe250 [GstValidateScenario]) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c:1658
#217 0x00007fe69e6b5d01 in execute_next_action (scenario=scenario@entry=0x9fe250 [GstValidateScenario]) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-scenario.c:2107
#218 0x00007fe69e587b31 in g_timeout_dispatch (source=0xaa7da0, callback=0x7fe69e6b5830 <execute_next_action>, user_data=0x9fe250) at gmain.c:4667
#219 0x00007fe69e58706d in g_main_dispatch (context=0x71bc50) at gmain.c:3182
#220 0x00007fe69e58706d in g_main_context_dispatch (context=context@entry=0x71bc50) at gmain.c:3847
#221 0x00007fe69e587438 in g_main_context_iterate (context=context@entry=0x71bc50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3920
#222 0x00007fe69e5874d0 in g_main_context_iteration (context=context@entry=0x71bc50, may_block=may_block@entry=1) at gmain.c:3981
#223 0x00007fe69e3dfd25 in g_application_run (application=0x71c1f0 [GESLauncher], argc=argc@entry=6, argv=argv@entry=0x7ffe433c61c8) at gapplication.c:2470
#224 0x000000000040393c in main (argc=6, argv=0x7ffe433c61c8) at ../subprojects/gst-editing-services/tools/ges-launch.c:88
(gdb) p last_group
$1 = (GstDecodeGroup *) 0x52c
(gdb) p group
$2 = (GstDecodeGroup *) 0x7fe668076f80
(gdb) p group->parent
$3 = (GstDecodeChain *) 0x7fe6680774c0
(gdb) p group->parent->next_group
There is no member named next_group.
(gdb) group->parent->next_groups
Undefined command: "group->parent->next_groups". Try "help".
(gdb) p group->parent->next_groups
$4 = 0x7fe660004280 = {0x528, 0x529, 0x52a, 0x52b, 0x52c}
(gdb) p *group->parent->next_groups
$5 = {data=0x528, next=0x7fe668077500, prev=0x7fe64c04ab80}
(gdb) p *group
$6 = {dbin = 0x52a, parent = 0x7fe6680774c0, multiqueue = 0x7fe668077500, overrunsig = 167503724544, overrun = 1, no_more_pads = 0, drained = 1745725152, children = 0xa19220 = {0x73d400, <error reading variable>
(gdb) Quit
(gdb)
Use the bitrate advertised by queue2 to determine the limits to
set across possibly multiple queue2/downloadbuffer elements. e.g.
with two queue2's and a max-bytes based on the ratio of the
bitrate/cumulative_bitrate multiplied by the buffer_size set on urisourcebin.
This allows finer grained control over the buffer used by all the queue
elements inside urisourcebin. Instead of a maximum of
n_streams*buffer_size being used, only buffer_size will be used however
we will fallback to n_streams*buffer_size if one of the queue2's does
not have bitrate information.
https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/60
This new property controls the synchronisation offset between the text and video
streams. Positive values make the text ahead of the video and negative values
make the text go behind the video.
https://bugzilla.gnome.org/show_bug.cgi?id=797134
This new property controls the synchronisation offset between the text and video
streams. Positive values make the text ahead of the video and negative values
make the text go behind the video.
https://bugzilla.gnome.org/show_bug.cgi?id=797134
When the playsink contains a text chain this property controls the
synchronisation of the subtitles and video by controlling the underlying
subtitleoverlay::subtitle-ts-offset property.
https://bugzilla.gnome.org/show_bug.cgi?id=797134
The queue between the audiotee and the audio chain wasn't properly added to the
bin, leading to streamsynchronizer locks on EOS. Reconfiguration of the
visualization chain wasn't working as expected either. It is now possible to
dynamically enable/disable the audio visualization support.
https://bugzilla.gnome.org/show_bug.cgi?id=796553
Otherwise decodebin won't get notified about STREAM_COLLECTION comming
from the sources and thus will never get informored about it. Without
being informed about the stream collection decodebin won't be able to
select any streams. It ends up not creating any output for the streams
defined from outside parserbin.
https://bugzilla.gnome.org/show_bug.cgi?id=795364
Buffering messages are only sent for the active group (in case there
is more than one).
If the inactive group posts buffering messages we keep the last one
around and will post it once it becomes the playing one.
In order to flush out multiqueue, we send again a STREAM_START and
then a EOS event.
The problem was that was that we might end up pushing out on the
output of multiqueue (and therefore decodebin3) a series of:
* EOS / STREAM_START / EOS
Apart from the uglyness of such output, If decodebin3 is used with
elements such as concat on their output, they might potentially
block on that second STREAM_START.
In order to make sure we don't end up in that situation we send
a custom STREAM_START event when refreshing multiqueue (which we
drop on the output) and we don't special case EOS events on streams
on which we already got EOS.
At worst we now end up sending at most two EOS on the output of
multiqueue (and decodebin3).
Similar in vein to the playbin2 architecture except that uridecodebin3
are prerolled much earlier and all streams of the same type are
fed through a 'concat' element.
This keeps the philosphy of having all elements connected as soon
as possible.
The 'about-to-finish' signal is emitted whenever one of the uridecodebin
is about to finish, allowing the users to set the next uri/suburi.
The notion of a group being active has changed. It now means that the
uridecodebin3 has been activated, but doesn't mean it is the one
currently being outputted by the sinks (i.e. curr_group and next_group).
This is done via detecting GST_MESSAGE_STREAM_START emission by playsink
and figuring out which group is really playing.
When the current group changes, a new thread is started to deactivate
the previous one and optionnaly fire 'about-to-finish'.
Apologies for the big commit, but it wasn't really possible to split it
in anything smaller.
* Switch to uridecodebin3 instead of managing urisourcebin and decodebin3
ourselves. No major architectural change with this.
* Reconfigure sinks/outputs when needed. This is possible thanks to the
various streams-related API. Instead of blocking new pads and waiting
for a (fake) no-more-pads to decide what to connect, we instead reconfigure
playsink and the combiners to whatever types are currently selected. All of
this is done in reconfigure_output().
New pads are immediately connected to (combiners and) sinks, allowing
immediate negotiation and usage.
* Since elements are always connected, the "cached-duration" feature is gone
and queries can reach the target elements.
* The auto-plugging related code is currently disabled entirely until
we get the new proper API.
* Store collections at the GstSourceGroup level and not globally
* And more comments a bit everywhere
NOTE: gapless is still not functional, but this opens the way to be able
to handle it in a streams-aware fashion (where several uridecodebin3 can
be active at the same time).
With push-based sources, urisourcebin will emit this signal when
the stream has been fully consumed.
This signal can be used to know when the source is done providing
data.
If select-stream event was send to playbin3 as missing any GstStream of ES type
(V or A or TEX) of collection then, playbin will access to invalid address of
GstStream due to invalid index limit. This caused SIGSEGV.
https://bugzilla.gnome.org/show_bug.cgi?id=791638
If we are shutting down, don't spawn a cleanup thread to cleanup old
groups and instead queue them to be cleaned up in the state change
thread.
This avoids (hopefully for good) having a race between the state change
thread and other threads trying to deactivate elements/pads.
Deactivating pads from two threads isn't 100% MT-safe. There is a
slim chance that the GstPadActivateFunc might be called twice with
the same values (in this case from the cleanup thread *and* from
the GstElement change_state function when going from PAUSED to READY).
In order to avoid that, call any existing cleanup function *before*
calling the parent change_state implementation on downwards state
changes.
When deactivating pads, we need to ensure that the streaming threads
going through the pads we wish to deactivate can cleanly return.
Failure to do that would result in the streaming locks of those
pads never being released. The end result would be a deadlock
when stopping decodebin2.
In order to avoid that situation, release the "dyn" lock around
the deactivation code. And refactor the code to cope with the
list of blocked pads having potentially changed when re-acquiring
the lock.
We have a dedicated one-shot thread to handle cleanup of old groups.
While this is a good idea. It's an even better idea to make sure
that thread is *completed* before the parsebin element to which
it is related isn't freed/gone.
* There can only be one cleanup thread happening at any point in time.
If there is already one, we wait for the previous one to finish.
* When shutting down (NULL=>READY) make sure the thread is finished
https://bugzilla.gnome.org/show_bug.cgi?id=790007
We have a dedicated one-shot thread to handle cleanup of old groups.
While this is a good idea. It's an even better idea to make sure
that thread is *completed* before the decodebin2 element to which
it is related isn't freed/gone.
* There can only be one cleanup thread happening at any point in time.
If there is already one, we wait for the previous one to finish.
* When shutting down (NULL=>READY) make sure the thread is finished
https://bugzilla.gnome.org/show_bug.cgi?id=790007
Instead of emitting 'drained' whenever every single chain is drained
(which would result in plenty of signal emission, and would also
occur when switching groups), only emit it when the top-level chain
is drained.
Furthermore, mark unknown (and therefore unexposed) pads as drained
since we'll never get EOS on them.
https://bugzilla.gnome.org/show_bug.cgi?id=787367
If we can expose the main chain, recheck whether we are shutting
down or not.
decodebin2 might have been set to READY/NULL during the attempt
to expose, which would cause it to fail ... but it is not a fatal
issue.
By select-streams event, current implementation of decodebin3
supports deactivate output stream (i.e., decoder element)
in reassign slot(), but cannot activate any slot without track change.
https://bugzilla.gnome.org/show_bug.cgi?id=778015
Application might choose only specific type among all available types
using select-streams event. In this case, it is desired that reconfigure
of playsink to clear unused stream path.
https://bugzilla.gnome.org/show_bug.cgi?id=778015
Use the intended sequence for re-using elements:
* EOS
* STREAM_START if element is to be re-used
This avoids having elements (such as queue/multiqueue/queue2) not
properly resetting themselves.
When delaying EOS propagation (because we want to wait until all
streams of a group are done for example), we re-trigger them by
first sending the cached STREAM_START and then EOS (which will
cause elements to re-set themselves if needed and accept new
buffers/events).
https://bugzilla.gnome.org/show_bug.cgi?id=785951
It is forwarding messages to the playbin bus, thus forwarding messages
that contain a floating reference to the application. This generally
makes bindings unhappy, we must not leak floating references to them.
Do not remove other parsebin's input streams. It will cause unexpected
removal of any input streams in multi-parsebin use case.
Basically, the purpose of blocking buffers is similar to checking
no-more-pads of chain/group. That is, it gives hint to know the timing
to remove old (EOSed) streams of the parsebin and to add/reuse slots
for new input streams. But, that doesn't mean that we need to remove
other parsebin's EOSed stream. Each parsebin has most likely its
own streaming thread and therefore EOSed time can be much different.
(i.e., much early EOS of subtitle only parsebin)
https://bugzilla.gnome.org/show_bug.cgi?id=785120
