D:\gst-plugin-pylon-main\gst-plugin-pylon-main>meson build --prefix=%GSTREAMER_1_0_ROOT_MSVC_X86_64%
The Meson build system
Version: 0.63.3
Source dir: D:\gst-plugin-pylon-main\gst-plugin-pylon-main
Build dir: D:\gst-plugin-pylon-main\gst-plugin-pylon-main\build
Build type: native build
Project name: gst-plugin-pylon
Project version: 0.4.0
C compiler for the host machine: cl (msvc 19.29.30140 "Microsoft (R) C/C++ Optimizing Compiler Version 19.29.30140 for x86")
C linker for the host machine: link link 14.29.30140.0
C++ compiler for the host machine: cl (msvc 19.29.30140 "Microsoft (R) C/C++ Optimizing Compiler Version 19.29.30140 for x86")
C++ linker for the host machine: link link 14.29.30140.0
Host machine cpu family: x86
Host machine cpu: x86
Found pkg-config: D:\gstreamer\1.0\msvc_x86_64\\bin\pkg-config.EXE (0.29.2)
Run-time dependency gstreamer-1.0 found: YES 1.20.3
Message: Building against GStreamer 1.20.3
Compiler for C supports arguments /utf-8: YES
Compiler for C supports link arguments -Wl,-Bsymbolic-functions: NO
Compiler for C supports arguments -fvisibility=hidden: NO
Compiler for C supports arguments -fno-strict-aliasing: NO
Message: Disabling GLib cast checks
Checking for size of "char" : 1
Checking for size of "int" : 4
Checking for size of "long" : 4
Checking for size of "short" : 2
Checking for size of "void*" : 4
Checking for size of "off_t" : -1
Compiler for C supports arguments -Wmissing-declarations: NO
Compiler for C++ supports arguments -Wmissing-declarations: NO
Compiler for C supports arguments -Wredundant-decls: NO
Compiler for C++ supports arguments -Wredundant-decls: NO
Compiler for C supports arguments -Wwrite-strings: NO
Compiler for C++ supports arguments -Wwrite-strings: NO
Compiler for C supports arguments -Winit-self: NO
Compiler for C++ supports arguments -Winit-self: NO
Compiler for C supports arguments -Wmissing-include-dirs: NO
Compiler for C++ supports arguments -Wmissing-include-dirs: NO
Compiler for C supports arguments -Wno-multichar: NO
Compiler for C++ supports arguments -Wno-multichar: NO
Compiler for C supports arguments -Wvla: NO
Compiler for C++ supports arguments -Wvla: NO
Compiler for C supports arguments -Wpointer-arith: NO
Compiler for C++ supports arguments -Wpointer-arith: NO
Compiler for C supports arguments -Wmissing-prototypes: NO
Compiler for C supports arguments -Wdeclaration-after-statement: NO
Compiler for C supports arguments -Wold-style-definition: NO
Compiler for C supports arguments -Waggregate-return: NO
Run-time dependency gstreamer-base-1.0 found: YES 1.20.3
Run-time dependency gstreamer-check-1.0 found: YES 1.20.3
Run-time dependency gstreamer-pbutils-1.0 found: YES 1.20.3
Run-time dependency gstreamer-allocators-1.0 found: YES 1.20.3
Run-time dependency gstreamer-video-1.0 found: YES 1.20.3
Run-time dependency glib-2.0 found: YES 2.62.6
Run-time dependency gobject-2.0 found: YES 2.62.6
Header "gst/gstconfig.h" has symbol "GST_DISABLE_GST_DEBUG" with dependency gstreamer-1.0: NO
Message: GStreamer debug system is enabled
Program python3 found: YES (C:\Program Files\Meson\meson.exe runpython)
Found CMake: C:\Program Files\CMake\bin\cmake.EXE (3.23.2)
Run-time dependency pylon (modules: pylon::GCBase, pylon::GenApi, pylon::PylonBase, pylon::PylonUtility) found: YES 7.1.0
Run-time dependency valgrind found: NO (tried pkgconfig)
Run-time dependency gstreamer-plugins-base-1.0 found: YES 1.20.3
Program D:/gstreamer/1.0/msvc_x86_64/libexec/gstreamer-1.0/gst-plugins-doc-cache-generator found: NO
docs\meson.build:32: WARNING: GStreamer plugin inspector for documentation not found, can't update the cache
Program hotdoc found: NO
Message: Hotdoc not found, not building the documentation
Configuring config.h using configuration
Build targets in project: 3

gst-plugin-pylon 0.4.0

    Plugins: pylon

  User defined options
    prefix : D:\gstreamer\1.0\msvc_x86_64\

Found ninja-1.11.1 at .\ninja.EXE

D:\gst-plugin-pylon-main\gst-plugin-pylon-main>ninja -C build
ninja: Entering directory `build'
[3/15] Compiling C object tests/check/generic_states.exe.p/generic_states.c.obj
cl : Command line warning D9025 : overriding '/DG_DISABLE_CAST_CHECKS' with '/UG_DISABLE_CAST_CHECKS'
[5/15] Linking target tests/examples/pylon/pylonsrc.exe
FAILED: tests/examples/pylon/pylonsrc.exe tests/examples/pylon/pylonsrc.pdb
"link"  /MACHINE:x86 /OUT:tests/examples/pylon/pylonsrc.exe tests/examples/pylon/pylonsrc.exe.p/pylonsrc.c.obj "/nologo" "/release" "/nologo" "/DEBUG" "/PDB:tests\examples\pylon\pylonsrc.pdb" "D:/gstreamer/1.0/msvc_x86_64/lib/gstvideo-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstbase-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstreamer-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gobject-2.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/glib-2.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/intl.lib" "/SUBSYSTEM:CONSOLE" "kernel32.lib" "user32.lib" "gdi32.lib" "winspool.lib" "shell32.lib" "ole32.lib" "oleaut32.lib" "uuid.lib" "comdlg32.lib" "advapi32.lib"
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_error_free referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_setenv referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_free referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_main_loop_new referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_main_loop_run referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_main_loop_quit referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_main_loop_unref referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_source_remove referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_timeout_add_seconds referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_return_if_fail_warning referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_print referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_printerr referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol _g_object_set referenced in function _toggle_pattern
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_object_unref referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_message_parse_error referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_message_parse_warning referenced in function _bus_callback
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_bus_add_watch referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_element_set_state referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_bin_get_by_name referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_child_proxy_get referenced in function _toggle_pattern
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_child_proxy_set referenced in function _toggle_pattern
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_pipeline_get_bus referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_parse_launch_full referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_init referenced in function _main
pylonsrc.c.obj : error LNK2019: unresolved external symbol __imp__gst_deinit referenced in function _main
D:\gstreamer\1.0\msvc_x86_64\lib\gstvideo-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstbase-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstreamer-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gobject-2.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\glib-2.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\intl.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
tests\examples\pylon\pylonsrc.exe : fatal error LNK1120: 25 unresolved externals
[6/15] Linking target tests/check/generic_states.exe
FAILED: tests/check/generic_states.exe tests/check/generic_states.pdb
"link"  /MACHINE:x86 /OUT:tests/check/generic_states.exe tests/check/generic_states.exe.p/generic_states.c.obj "/nologo" "/release" "/nologo" "/DEBUG" "/PDB:tests\check\generic_states.pdb" "D:/gstreamer/1.0/msvc_x86_64/lib/gstreamer-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gobject-2.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/glib-2.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/intl.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstbase-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstcheck-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstvideo-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstpbutils-1.0.lib" "D:/gstreamer/1.0/msvc_x86_64/lib/gstaudio-1.0.lib" "/SUBSYSTEM:CONSOLE" "kernel32.lib" "user32.lib" "gdi32.lib" "winspool.lib" "shell32.lib" "ole32.lib" "oleaut32.lib" "uuid.lib" "comdlg32.lib" "advapi32.lib"
generic_states.c.obj : error LNK2019: unresolved external symbol _g_getenv referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol _g_free referenced in function _teardown
generic_states.c.obj : error LNK2019: unresolved external symbol _g_list_free referenced in function _teardown
generic_states.c.obj : error LNK2019: unresolved external symbol _g_list_prepend referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol _g_print referenced in function ___gst_tcase_add_test
generic_states.c.obj : error LNK2019: unresolved external symbol _g_str_has_prefix referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol _g_strdup referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol _g_strsplit referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol _g_strfreev referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol _g_type_check_instance_cast referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol _g_type_check_instance_is_a referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_object_get_type referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_object_unref referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_task_cleanup_all referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_plugin_get_name referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_plugin_get_source referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_plugin_list_free referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_plugin_feature_list_free referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_element_factory_get_type referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_element_factory_make referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_element_set_state referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_debug_log referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_pipeline_get_type referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_registry_get referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_registry_get_plugin_list referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_registry_get_feature_list_by_plugin referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__suite_create referenced in function _main
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__suite_add_tcase referenced in function _main
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__tcase_create referenced in function _main
generic_states.c.obj : error LNK2019: unresolved external symbol __imp___tcase_add_test referenced in function ___gst_tcase_add_test
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__tcase_add_checked_fixture referenced in function _main
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__tcase_fn_start referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp___ck_assert_failed referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp___mark_point referenced in function _test_state_changes_down_seq
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_check_init referenced in function _main
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__gst_check_run_suite referenced in function _maingeneric_states.c.obj : error LNK2019: unresolved external symbol __imp___gst_check_run_test_func referenced in function ___gst_tcase_add_test
generic_states.c.obj : error LNK2019: unresolved external symbol __imp___gst_debug_min referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp__check_debug referenced in function _setup
generic_states.c.obj : error LNK2019: unresolved external symbol __imp___gst_check_list_tests referenced in function ___gst_tcase_add_test
D:\gstreamer\1.0\msvc_x86_64\lib\gstreamer-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gobject-2.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\glib-2.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\intl.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstbase-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstcheck-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstvideo-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstpbutils-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
D:\gstreamer\1.0\msvc_x86_64\lib\gstaudio-1.0.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
tests\check\generic_states.exe : fatal error LNK1120: 40 unresolved externals
[14/15] Compiling C++ object ext/pylon/gstpylon.dll.p/gstpylon.cpp.obj
../ext/pylon/gstpylon.cpp(840): warning C4101: 'e': unreferenced local variable
ninja: build stopped: subcommand failed.

$ ./test camera
[Warn  0.018940 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0.283679 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,013834 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,278346 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,555618 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,825468 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
Leitung wird auf PAUSIERT gesetzt ...
[Warn  1,101997 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
FEHLER: Von Element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: Failed to start camera.
Zusätzliche Fehlerdiagnoseinformation:
../ext/pylon/gstpylonsrc.cpp(820): gst_pylon_src_start (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
No devices found matching the specified criteria
FEHLER: Leitung läuft nicht vor.
FEHLER: Von Element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: GStreamer-Fehler: Zustandswechsel schlug fehl und einige Elemente gaben keine richtige Fehlernachricht mit einer Ursachenbegründung.
Zusätzliche Fehlerdiagnoseinformation:
../libs/gst/base/gstbasesrc.c(3556): gst_base_src_start (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
Failed to start
FEHLER: Leitung läuft nicht vor.
Failed to set pipeline to PAUSED.
Leitung wird auf NULL gesetzt ...
Leitung wird geleert ...

$ gst-inspect-1.0 pylonsrc
[Warn  0,013844 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,277869 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
Factory Details:
  Rank                     none (0)
  Long-name                Basler/Pylon source element
  Klass                    Source/Video/Hardware
  Description              Source element for Basler cameras
  Author                   Basler AG <[email protected]>

Plugin Details:
  Name                     pylon
  Description              Basler/Pylon plugin for pylon SDK 6.2.0(18677)
  Filename                 /usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstpylon.so
  Version                  0.7.0
  License                  BSD
  Source module            gst-plugin-pylon
  Binary package           GStreamer Pylon Plug-in source release
  Origin URL               https://github.com/basler/gst-plugin-pylon

GObject
 +----GInitiallyUnowned
       +----GstObject
             +----GstElement
                   +----GstBaseSrc
                         +----GstPushSrc
                               +----GstPylonSrc

Implemented Interfaces:
  GstChildProxy

Pad Templates:
  SRC template: 'src'
    Availability: Always
    Capabilities:
      video/x-raw
                 format: { (string)GRAY8, (string)RGB, (string)BGR, (string)YUY2, (string)UYVY }
                  width: [ 1, 2147483647 ]
                 height: [ 1, 2147483647 ]
              framerate: [ 0/1, 2147483647/1 ]
      video/x-bayer
                 format: { (string)rggb, (string)bggr, (string)gbgr, (string)grgb }
                  width: [ 1, 2147483647 ]
                 height: [ 1, 2147483647 ]
              framerate: [ 0/1, 2147483647/1 ]

Element has no clocking capabilities.
Element has no URI handling capabilities.

Pads:
  SRC: 'src'
    Pad Template: 'src'

Element Properties:
  blocksize           : Size in bytes to read per buffer (-1 = default)
                        flags: lesbar, schreibbar
                        Unsigned Integer. Range: 0 - 4294967295 Default: 4096 
  cam                 : The camera to use.
			According to the selected camera different properties will be available.
 			These properties can be accessed using the "cam::<property>" syntax.
			No valid cameras where found connected to the system.
                        flags: lesbar
                        Object of type "GObject"
  capture-error       : The strategy to use in case of a camera capture error.
                        flags: lesbar, schreibbar, regelbar
                        Enum "GstPylonCaptureErrorEnum" Default: 2, "Stop pipeline in case of any capture error"
                           (0): Use partial or corrupt buffers - keep
                           (1): Skip partial or corrupt buffers. A maximum of 100 buffers can be skipped before the pipeline aborts. - skip
                           (2): Stop pipeline in case of any capture error - abort
  device-index        : The index of the device to use.This index applies to the resulting device list after applying the other device selection properties. The index is mandatory if multiple devices match the given search criteria.
                        flags: lesbar, schreibbar, änderbar nur in den Status NULL oder BEREIT
                        Integer. Range: -1 - 2147483647 Default: -1 
  device-serial-number: The serial number of the device to use. May be combined with other device selection properties to reduce the search.
                        flags: lesbar, schreibbar, änderbar nur in den Status NULL oder BEREIT
                        String. Default: null
  device-user-name    : The user-defined name of the device to use. May be combinedwith other device selection properties to reduce the search.
                        flags: lesbar, schreibbar, änderbar nur in den Status NULL oder BEREIT
                        String. Default: null
  do-timestamp        : Apply current stream time to buffers
                        flags: lesbar, schreibbar
                        Boolean. Default: false
  enable-correction   : If enabled, the values from other parameters will be automatically corrected.  If any of the properties holds an incorrect value given an specific configuration it will be corrected
                        flags: lesbar, schreibbar, änderbar nur in den Status NULL oder BEREIT
                        Boolean. Default: true
  name                : The name of the object
                        flags: lesbar, schreibbar, 0x2000
                        String. Default: "pylonsrc0"
  num-buffers         : Number of buffers to output before sending EOS (-1 = unlimited)
                        flags: lesbar, schreibbar
                        Integer. Range: -1 - 2147483647 Default: -1 
  parent              : The parent of the object
                        flags: lesbar, schreibbar, 0x2000
                        Object of type "GstObject"
  pfs-location        : The filepath to the PFS file from which to load the device configuration. Setting this property will override the user set property if also set.
                        flags: lesbar, schreibbar, änderbar nur in den Status NULL oder BEREIT
                        String. Default: null
  stream              : The stream grabber to use.
			According to the selected stream grabber different properties will be available.
 			These properties can be accessed using the "stream::<property>" syntax.
			No valid cameras where found connected to the system.
                        flags: lesbar
                        Object of type "GObject"
  typefind            : Run typefind before negotiating (deprecated, non-functional)
                        flags: lesbar, schreibbar, veraltet
                        Boolean. Default: false
  user-set            : The user-defined configuration set to use. Leaving this property unset, or using 'Auto' result in selecting the power-on default camera configuration.
                        flags: lesbar, schreibbar, änderbar nur in den Status NULL oder BEREIT
                        String. Default: null

gst-launch-1.0 pylonsrc ! 'video/x-raw, width=1920, height=1080, format=YUY2, framerate=60/1' ! nvvidconv ! nvv4l2h265enc bitrate=5000000 insert-sps-pps=1 idrinterval=30 insert-vui=1 maxperf-enable=true ! 'video/x-h265, stream-format=(string)byte-stream' ! h265parse ! rtph265pay mtu=1320 ! udpsink host=192.168.1.114 port=15000 sync=false async=false -e

gst-launch-1.0 -e udpsrc port=15000 ! 'application/x-rtp, encoding-name=H265, payload=96' ! rtph265depay ! h265parse ! nvv4l2decoder enable-max-performance=1 ! nvvidconv ! autovideosink sync=false async=false

$ /opt/bin/test camera
[Warn  0,019248 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,284149 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,559721 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,829524 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
Leitung wird auf PAUSIERT gesetzt ...
[Warn  1,110596 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
FEHLER: Von Element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: Failed to start camera.
Zusätzliche Fehlerdiagnoseinformation:
../ext/pylon/gstpylonsrc.cpp(820): gst_pylon_src_start (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
No devices found matching the specified criteria
FEHLER: Leitung läuft nicht vor.
FEHLER: Von Element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: GStreamer-Fehler: Zustandswechsel schlug fehl und einige Elemente gaben keine richtige Fehlernachricht mit einer Ursachenbegründung.
Zusätzliche Fehlerdiagnoseinformation:
../libs/gst/base/gstbasesrc.c(3556): gst_base_src_start (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
Failed to start
FEHLER: Leitung läuft nicht vor.
Failed to set pipeline to PAUSED.
Leitung wird auf NULL gesetzt ...
Leitung wird geleert ...
$ gst-inspect-1.0 pylonsrc | grep -E "Descr.*pylon.*|\s+Version\s+[0-9]+"
[Warn  0,013857 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
[Warn  0,277909 GenTLProducer::Core] No explicit support for this platform, trying generic pipeline handler. Some features might not work as expected.
  Description              Basler/Pylon plugin for pylon SDK 6.2.0(18677)
  Version                  0.7.0

Mai 31 17:45:06 tavla kernel: capability: warning: `gst-launch-1.0' uses 32-bit capabilities (legacy support in use)

Jun 11 21:00:31 VIDEO[7205]: New clock: GstSystemClock
Jun 11 21:00:31 VIDEO[7205]: FEHLER: Von Element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: Internal data stream error.
Jun 11 21:00:31 VIDEO[7205]: Zusätzliche Fehlerdiagnoseinformation:
Jun 11 21:00:31 VIDEO[7205]: ../libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
Jun 11 21:00:31 VIDEO[7205]: streaming stopped, reason not-negotiated (-4)
Jun 11 21:00:31 VIDEO[7205]: Execution ended after 0:00:00.434628856
Jun 11 21:00:31 VIDEO[7205]: Leitung wird auf NULL gesetzt ...
Jun 11 21:00:31 VIDEO[7205]: Leitung wird geleert ...

Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:01.799958577 17585 0xffff240cf800 INFO              GST_STATES gstbin.c:2513:gst_bin_element_set_state:<pylonsrc0> current READY pending VOID_PENDING, desired next PAUSED
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:01.800016704 17585 0xffff240cf800 INFO                pylonsrc gstpylonsrc.cpp:680:gst_pylon_src_start:<pylonsrc0> Attempting to create camera device with the following configuration:
Mai 07 23:44:04 tavla TAVLA[17585]:         name: (null)
Mai 07 23:44:04 tavla TAVLA[17585]:         serial number: (null)
Mai 07 23:44:04 tavla TAVLA[17585]:         index: -1
Mai 07 23:44:04 tavla TAVLA[17585]:         user set: (null)
Mai 07 23:44:04 tavla TAVLA[17585]:         PFS filepath: (null)
Mai 07 23:44:04 tavla TAVLA[17585]:         Enable correction: True.
Mai 07 23:44:04 tavla TAVLA[17585]: If defined, the PFS file will override the user set configuration.
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.057971090 17585 0xffff240cf800 WARN                pylonsrc gstpylonsrc.cpp:724:gst_pylon_src_start:<pylonsrc0> error: Failed to start camera.
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.058056842 17585 0xffff240cf800 WARN                pylonsrc gstpylonsrc.cpp:724:gst_pylon_src_start:<pylonsrc0> error: No devices found matching the specified criteria
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.058115468 17585 0xffff240cf800 INFO        GST_ERROR_SYSTEM gstelement.c:2234:gst_element_message_full_with_details:<pylonsrc0> posting message: Failed to start camera.
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.058646980 17585 0xffff240cf800 INFO        GST_ERROR_SYSTEM gstelement.c:2261:gst_element_message_full_with_details:<pylonsrc0> posted error message: Failed to start camera.
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.058717232 17585 0xffff240cf800 WARN                 basesrc gstbasesrc.c:3556:gst_base_src_start:<pylonsrc0> error: Failed to start
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.058803984 17585 0xffff240cf800 INFO        GST_ERROR_SYSTEM gstelement.c:2234:gst_element_message_full_with_details:<pylonsrc0> posting message: GStreamer-Fehler: Zustandswechsel schlug fehl und einige Elemente gaben keine ri>
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059243618 17585 0xffff240cf800 INFO        GST_ERROR_SYSTEM gstelement.c:2261:gst_element_message_full_with_details:<pylonsrc0> posted error message: GStreamer-Fehler: Zustandswechsel schlug fehl und einige Elemente gaben kei>
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059309495 17585 0xffff240cf800 WARN                 basesrc gstbasesrc.c:3912:gst_base_src_activate_push:<pylonsrc0> Failed to start in push mode
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059343121 17585 0xffff240cf800 INFO                GST_PADS gstpad.c:1276:activate_mode_internal:<pylonsrc0:src> failed to activate in push mode
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059373121 17585 0xffff240cf800 WARN                GST_PADS gstpad.c:1142:gst_pad_set_active:<pylonsrc0:src> Failed to activate pad
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059406747 17585 0xffff240cf800 INFO              GST_STATES gstelement.c:3054:gst_element_change_state:<pylonsrc0> have FAILURE change_state return
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059440873 17585 0xffff240cf800 INFO              GST_STATES gstelement.c:2641:gst_element_abort_state:<pylonsrc0> aborting state from READY to PAUSED
Mai 07 23:44:04 tavla TAVLA[17585]: 0:00:02.059509124 17585 0xffff240cf800 INFO              GST_STATES gstbin.c:2978:gst_bin_change_state_func:<pipeline0> child 'pylonsrc0' failed to go to state 3(PAUSED)

# dmesg | grep Basler
[ 7.959195] ABRM: Manufactuturer: Basler, Model: daA2500-60mc, Device: 108483-01, Serial: basler:40147311
[ 7.977670] basler-camera 1-0036: Basler Camera Driver v1.6.3 loaded successfully

# export GENICAM_GENTL64_PATH=/opt/dart-bcon-mipi/lib/
# gst-launch-1.0 pylonsrc ! fakesink
[Warn  0.062798 GenTLProducer::Core] Could not use /dev/video0: Basler Interface version mismatch: expected: 1.1, got: 0.0
[Warn  0.075844 GenTLProducer::Core] Could not use /dev/video0: Basler Interface version mismatch: expected: 1.1, got: 0.0
[Warn  0.585704 GenTLProducer::Core] Could not use /dev/video0: Basler Interface version mismatch: expected: 1.1, got: 0.0
[Warn  0.589103 GenTLProducer::Core] Could not use /dev/video0: Basler Interface version mismatch: expected: 1.1, got: 0.0
Setting pipeline to PAUSED ...
[ 1885.648864] capability: warning: `gst-launch-1.0' uses 32-bit capabilities (legacy support in use)
[Warn  1.260880 GenTLProducer::Core] Could not use /dev/video0: Basler Interface version mismatch: expected: 1.1, got: 0.0
[Warn  1.264486 GenTLProducer::Core] Could not use /dev/video0: Basler Interface version mismatch: expected: 1.1, got: 0.0
ERROR: from element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: Failed to start camera.
Additional debug info:
../ext/pylon/gstpylonsrc.c(700): gst_pylon_src_start (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
No devices found matching the specified criteria
ERROR: pipeline doesn't want to preroll.
ERROR: from element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.
Additional debug info:
../libs/gst/base/gstbasesrc.c(3556): gst_base_src_start (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
Failed to start
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

# v4l2-ctl -d /dev/v4l-subdev0 --all
Driver Info:
        Driver version   : 5.15.52
        Capabilities     : 0x00000000

User Controls

       basler_interface_version 0x00981001 (int)    : min=0 max=4294967295 step=1 default=65537 value=65537 flags=read-only
error 5 getting ext_ctrl basler-access-register
      basler_device_information 0x00981003 (unknown): type=370de8ca dims=[1] flags=read-only, volatile, has-payload
         basler_csi_information 0x00981004 (unknown): type=370de8ca dims=[1] flags=read-only, volatile, has-payload

Setting pipeline to PAUSED ...
Opening in BLOCKING MODE
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://localhost:8554/40257292
Progress: (open) Retrieving server options
Progress: (open) Opened Stream
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Progress: (request) Sending RECORD request
Redistribute latency...
NvMMLiteOpen : Block : BlockType = 4
===== NVMEDIA: NVENC =====
NvMMLiteBlockCreate : Block : BlockType = 4
H264: Profile = 66, Level = 0
NVMEDIA: Need to set EMC bandwidth : 141000
NVMEDIA_ENC: bBlitMode is set to TRUE
ERROR: from element /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0: Failed to get caps.
Additional debug info:
../ext/pylon/gstpylonsrc.c(467): gst_pylon_src_get_caps (): /GstPipeline:pipeline0/GstPylonSrc:pylonsrc0:
Node is not writable.
Execution ended after 0:00:00.759384283
Setting pipeline to NULL ...

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="40198132" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! nvvidconv ! nvv4l2h264enc ! queue ! rtspclientsink location = rtsp://localhost:8554/40198132

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="40165426" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! nvvidconv ! nvv4l2h264enc ! queue ! rtspclientsink location = rtsp://localhost:8554/40165426

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="40257292" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! nvvidconv ! nvv4l2h264enc ! queue ! rtspclientsink location = rtsp://localhost:8554/40257292

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="40204286" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! nvvidconv ! nvv4l2h264enc ! queue ! rtspclientsink location = rtsp://localhost:8554/40204286

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="23751808" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! nvvidconv ! nvv4l2h264enc ! queue ! rtspclientsink location = rtsp://localhost:8554/23751808

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="40257292" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! videoconvert ! x264enc ! queue ! rtspclientsink location = rtsp://localhost:8554/40257292

gst-launch-1.0 pylonsrc capture-error=skip device-serial-number="40198132" ! "video/x-raw,width=1920,height=1080,framerate=5/1,format=YUY2" ! nvvidconv ! queue ! nvjpegenc ! queue ! tcpclientsink host=localhost port=50006

0:00:03.375394130 62113 0x55bbe02f2c00 LOG       GST_PLUGIN_LOADING gstpluginloader.c:1150:exchange_packets: Poll res = 0. 0 bytes pending for write
0:00:03.375420875 62113 0x55bbe02f2c00 DEBUG               GST_POLL gstpoll.c:1241:gst_poll_fd_has_error: 0x55bbe035cc00: fd (fd:8, idx:2) 0
0:00:03.375425291 62113 0x55bbe02f2c00 DEBUG               GST_POLL gstpoll.c:1266:gst_poll_fd_can_read_unlocked: 0x55bbe035cc00: fd (fd:8, idx:2) 0
0:00:03.375428694 62113 0x55bbe02f2c00 DEBUG               GST_POLL gstpoll.c:1195:gst_poll_fd_has_closed: 0x55bbe035cc00: fd (fd:8, idx:2) 0
0:00:03.375433174 62113 0x55bbe02f2c00 DEBUG               GST_POLL gstpoll.c:1414:gst_poll_wait: 0x55bbe035cc00: timeout :0:00:01.000000000
0:00:03.004880865 62114 0x55a3b9f97400 DEBUG               pylonsrc gstpylonintrospection.cpp:644:gst_pylon_find_limits: failed to set action
0:00:03.005573104 62114 0x55a3b9f97400 DEBUG               pylonsrc gstpylonintrospection.cpp:644:gst_pylon_find_limits: failed to set action
0:00:03.006255033 62114 0x55a3b9f97400 DEBUG               pylonsrc gstpylonintrospection.cpp:644:gst_pylon_find_limits: failed to set action
0:00:03.006863032 62114 0x55a3b9f97400 DEBUG               pylonsrc gstpylonintrospection.cpp:644:gst_pylon_find_limits: failed to set action
0:00:03.007512652 62114 0x55a3b9f97400 DEBUG               pylonsrc gstpylonintrospection.cpp:644:gst_pylon_find_limits: failed to set action

...

 	(s1) -- "L3"
	 |
	 |  /-- "L2"
ORIN -- (s2) -- "L1"	

** (gige_gst_epics:27536): CRITICAL **: 08:59:51.340: gst_plyon_src_add_metadata: assertion 'buf' failed
Error received from element pylonsrc: Failed to create buffer.
Debugging information: ../ext/pylon/gstpylonsrc.c(704): gst_pylon_src_create (): /GstPipeline:pipeline/GstPylonSrc:pylonsrc:
Grab timed out. Possible reasons are: The image transport from the camera device is not working properly, e.g., all GigE network packets for streaming are dropped; The camera uses explicit triggering (see TriggerSelector for more information) and has not been triggered; Single frame acquisition mode is used and one frame has already been acquired; The acquisition has not been started or has been stopped.

gst_child_proxy_set(
    pylonsrc_child_proxy,
    "cam::ExposureAuto", exposure_auto,
    "cam::ExposureTimeRaw", exposure_time_raw,
    "cam::GainAuto", gain_auto,
    "cam::GainRaw", gain_raw,
    NULL);

gst_child_proxy_get(
    pylonsrc_child_proxy,
    "cam::ExposureAuto", &exposure_auto,
    "cam::ExposureTimeRaw", &exposure_time_raw,
    "cam::GainAuto", &gain_auto,
    "cam::GainRaw", &gain_raw,
    NULL);

#include <mutex>
#include <thread>
#include <unistd.h>

extern "C" {
  #include <gst/gst.h>
  #include <gst/video/video-frame.h>
}

#include <pylon/PylonIncludes.h>


std::mutex image_mutex;
Pylon::CPylonImage pylon_image;


struct gstreamer_data {
  guint source_id;

  GstElement* appsrc;
  GstElement* capsfilter;
  GstElement* queue;
  GstElement* videoconvert;
  GstElement* autovideosink;

  GstElement* pipeline;

  GMainLoop* main_loop;
};


static gboolean push_data(gstreamer_data* data) {
  if (image_mutex.try_lock()) {
    if (pylon_image.IsValid()) {
      GstBuffer* buffer = gst_buffer_new_wrapped_full(
        (GstMemoryFlags) GST_MEMORY_FLAG_PHYSICALLY_CONTIGUOUS,
        (gpointer) pylon_image.GetBuffer(),
        pylon_image.GetImageSize(),
        0,
        pylon_image.GetImageSize(),
        NULL,
        NULL
      );

      gst_buffer_add_video_meta(
        buffer,
        GST_VIDEO_FRAME_FLAG_NONE,
        GST_VIDEO_FORMAT_GRAY8,
        pylon_image.GetWidth(),
        pylon_image.GetHeight()
      );

      GstFlowReturn ret;
      g_signal_emit_by_name(data->appsrc, "push-buffer", buffer, &ret);
      if (ret != GST_FLOW_OK) {
        g_printerr("Error\n");
        gst_buffer_unref(buffer);
        pylon_image.Release();
        image_mutex.unlock();
        return false;
      }

      gst_buffer_unref(buffer);
      pylon_image.Release();
    }
    image_mutex.unlock();
  }

  usleep(1);

  return true;
}

static void start_feed(GstElement* source, guint size, gstreamer_data* data) {
  (void) source;
  (void) size;


  if (data->source_id == 0) {
    //g_print("Start feeding\n");
    data->source_id = g_idle_add((GSourceFunc) push_data, data);
  }
}

static void stop_feed(GstElement* source, gstreamer_data* data) {
  (void) source;


  if (data->source_id != 0) {
    //g_print("Stop feeding\n");
    g_source_remove(data->source_id);
    data->source_id = 0;
  }
}


gboolean bus_callback(GstBus* bus, GstMessage* message, gpointer user_data) {
  (void) bus;
  GMainLoop* main_loop = ((gstreamer_data*) user_data)->main_loop;

  switch (GST_MESSAGE_TYPE(message)) {
    case GST_MESSAGE_EOS: {
      g_print("End of stream\n");
      g_main_loop_quit(main_loop);
      break;
    }
    case GST_MESSAGE_ERROR: {
      GError *error;
      gchar *debug;
      gst_message_parse_error(message, &error, &debug);
      g_printerr("Error received from element %s: %s\n", GST_OBJECT_NAME(message->src), error->message);
      g_error_free(error);
      g_printerr("Debugging information: %s\n", debug ? debug : "none");
      g_free(debug);
      g_main_loop_quit(main_loop);
      break;
    }
    case GST_MESSAGE_WARNING: {
      GError *error;
      gchar *debug;
      gst_message_parse_warning(message, &error, &debug);
      g_printerr("Warning received from element %s: %s\n", GST_OBJECT_NAME(message->src), error->message);
      g_error_free(error);
      g_printerr("Debugging information: %s\n", debug ? debug : "none");
      g_free(debug);
      break;
    }
    default:
      //g_print("%s %s\n", GST_MESSAGE_SRC_NAME(message), GST_MESSAGE_TYPE_NAME(message));
      break;
  }

  return TRUE;
}


static GstFlowReturn overrun_callback(GstElement* queue, gpointer udata) {
  g_printerr("%s overrun\n", queue->object.name);

  return GST_FLOW_OK;
}


void process_pylon() {
  try {
    Pylon::CInstantCamera camera(Pylon::CTlFactory::GetInstance().CreateFirstDevice());

    GenApi::INodeMap& node_map = camera.GetNodeMap();

    camera.Open();

    GenApi::CIntegerPtr width = node_map.GetNode("Width");
    std::cout << "Width: " << width->GetValue() << std::endl;

    GenApi::CIntegerPtr height = node_map.GetNode("Height");
    std::cout << "Height: " << height->GetValue() << std::endl;

    camera.StartGrabbing(Pylon::GrabStrategy_LatestImageOnly);

    Pylon::CGrabResultPtr ptrGrabResult;

    int loop = 0;
    while (camera.IsGrabbing()) {
      loop++;

      camera.RetrieveResult(5000, ptrGrabResult, Pylon::TimeoutHandling_ThrowException);
      if (ptrGrabResult->GrabSucceeded()) {
        if (image_mutex.try_lock()) {
          pylon_image.AttachGrabResultBuffer(ptrGrabResult);

          if (loop == 20) {
            pylon_image.Save(Pylon::EImageFileFormat::ImageFileFormat_Png, "test.png");
          }
          image_mutex.unlock();
        }
      }
      else {
        std::cout << "Error: " << std::hex << ptrGrabResult->GetErrorCode() << std::dec << " " << ptrGrabResult->GetErrorDescription() << std::endl;
      }
    }
  }
  catch (const Pylon::GenericException& e) {
    std::cerr << "An exception occurred." << std::endl << e.GetDescription() << std::endl;
    exit(-1);
  }
}


int main(int argc, char *argv[]) {
  gst_init(NULL, NULL);

  Pylon::PylonAutoInitTerm autoInitTerm;

  gstreamer_data data;

  data.appsrc = gst_element_factory_make("appsrc", "appsrc");
  if (!data.appsrc) {
    g_printerr("Failed to create element 'appsrc'\n");
    return -1;
  }

  data.capsfilter = gst_element_factory_make("capsfilter", "capsfilter");
  if (!data.capsfilter) {
    g_printerr("Failed to create element 'capsfilter'\n");
    return -1;
  }

  data.queue = gst_element_factory_make("queue", "queue");
  if (!data.queue) {
    g_printerr("Failed to create element 'appsink_queue'\n");
    return -1;
  }

  data.videoconvert = gst_element_factory_make("videoconvert", "videoconvert");
  if (!data.videoconvert) {
    g_printerr("Failed to create element 'videoconvert'\n");
    return -1;
  }

  data.autovideosink = gst_element_factory_make("autovideosink", "autovideosink");
  if (!data.autovideosink) {
    g_printerr("Failed to create element 'autovideosink'\n");
    return -1;
  }

  // This had to be explicitly set in order to get the 'start_feed' and 'stop_feed' functions to be called more than once.
  data.source_id = 0;

  g_object_set(G_OBJECT(data.appsrc),
    "stream-type", 0, // GST_APP_STREAM_TYPE_STREAM,
    "format", GST_FORMAT_TIME,
    "is-live", TRUE,
    "do-timestamp", TRUE, // needed for the pipeline to run
    NULL
  );

  g_signal_connect(data.appsrc, "need-data", G_CALLBACK(start_feed), &data);
  g_signal_connect(data.appsrc, "enough-data", G_CALLBACK(stop_feed), &data);

  g_object_set(G_OBJECT(data.capsfilter),
    "caps",
    gst_caps_new_simple("video/x-raw",
      "width", G_TYPE_INT, 659,
      "height", G_TYPE_INT, 494,
      "framerate", GST_TYPE_FRACTION, 0, 1,
      "format", G_TYPE_STRING, "GRAY8",
      NULL
    ),
    NULL
  );


  g_signal_connect(data.queue, "overrun", G_CALLBACK(overrun_callback), NULL);

  data.pipeline = gst_pipeline_new("pipeline");
  if (!data.pipeline) {
    g_printerr("Failed to create pipeline\n");
    return -1;
  }

  gst_bin_add_many(
    GST_BIN(data.pipeline),
    data.appsrc,
    data.capsfilter,
    data.queue,
    data.videoconvert,
    data.autovideosink,
    NULL
  );

  if (
    gst_element_link_many(
      data.appsrc,
      data.capsfilter,
      data.queue,
      data.videoconvert,
      data.autovideosink,
      NULL
    ) != TRUE
  )
  {
    g_printerr("Elements could not be linked.\n");
    gst_object_unref(data.pipeline);
    return -1;
  }


  data.main_loop = g_main_loop_new(NULL, FALSE);

  GstBus* bus = gst_element_get_bus(data.pipeline);
  guint bus_watch_id = gst_bus_add_watch(bus, (GstBusFunc) bus_callback, &data);
  gst_object_unref(bus);

  GstStateChangeReturn ret = gst_element_set_state(data.pipeline, GST_STATE_PLAYING);
  if (ret == GST_STATE_CHANGE_FAILURE) {
    g_printerr("Unable to set the pipeline to the playing state.\n");
    gst_object_unref(data.pipeline);
    g_source_remove(bus_watch_id);
    g_main_loop_unref(data.main_loop);
    return -1;
  }

  std::thread pylon_thread(process_pylon);


  g_print("Starting main loop.\n");

  g_main_loop_run(data.main_loop);

  pylon_thread.join();


  gst_element_set_state(data.pipeline, GST_STATE_NULL);
  gst_object_unref(data.pipeline);
  g_source_remove(bus_watch_id);
  g_main_loop_unref(data.main_loop);

  return 0;
}

import cv2
import gi
from gi.repository import GObject, Gst
gi.require_version('Gst', '1.0')


def gstreamer_pipeline(
):
    return (
        "pylonsrc device-index=0 ! video/x-raw, format=(string)BGR ! queue ! videoconvert ! appsink"
    )

def show_camera():
    Gst.debug_set_active(True)
    Gst.debug_set_default_threshold(3)
    cap = cv2.VideoCapture(gstreamer_pipeline(), cv2.CAP_GSTREAMER)
    
    if cap.isOpened():
        
        window_handle = cv2.namedWindow("Camera", cv2.WINDOW_AUTOSIZE)
        # Window
        while cv2.getWindowProperty("Camera", 0) >= 0:
            ret_val, img = cap.read()
            cv2.imshow("Camera", img)
            # This also acts as
            keyCode = cv2.waitKey(30) & 0xFF
            # Stop the program on the ESC key
            if keyCode == 27:
                break
        cap.release()
        cv2.destroyAllWindows()
    else:
        print("Unable to open camera")


if __name__ == "__main__":
    show_camera()

0:00:00.000073647  GST_INIT gst.c:586:init_pre:[00m Initializing GStreamer Core Library version 1.14.5
0:00:00.000119950  GST_INIT gst.c:587:init_pre:[00m Using library installed in /usr/lib/aarch64-linux-gnu
0:00:00.000143180  GST_INIT gst.c:607:init_pre:[00m Linux user-desktop 4.9.253-tegra #1 SMP PREEMPT Tue May 17 09:07:08 UTC 2022 aarch64
0:00:00.000535949  GST_INIT gstmessage.c:127:_priv_gst_message_initialize:[00m init messages
0:00:00.001574563  GST_INIT gstcontext.c:84:_priv_gst_context_initialize:[00m init contexts
0:00:00.001914727 GST_PLUGIN_LOADING gstplugin.c:317:_priv_gst_plugin_initialize:[00m registering 0 static plugins
0:00:00.002161763 GST_PLUGIN_LOADING gstplugin.c:225:gst_plugin_register_static:[00m registered static plugin "staticelements"
0:00:00.002307391 GST_PLUGIN_LOADING gstplugin.c:227:gst_plugin_register_static:[00m added static plugin "staticelements", result: 1
0:00:00.002415622 GST_REGISTRY gstregistry.c:1727:ensure_current_registry:[00m reading registry cache: /home/user/.cache/gstreamer-1.0/registry.aarch64.bin
0:00:00.047110229 GST_REGISTRY gstregistrybinary.c:621:priv_gst_registry_binary_read_cache:[00m loaded /home/user/.cache/gstreamer-1.0/registry.aarch64.bin in 0.044579 seconds
0:00:00.047274972 GST_REGISTRY gstregistry.c:1583:scan_and_update_registry:[00m Validating plugins from registry cache: /home/user/.cache/gstreamer-1.0/registry.aarch64.bin
0:00:00.053070402 GST_REGISTRY gstregistry.c:1685:scan_and_update_registry:[00m Registry cache has not changed
0:00:00.053114830 GST_REGISTRY gstregistry.c:1762:ensure_current_registry:[00m registry reading and updating done, result = 1
0:00:00.053133997  GST_INIT gst.c:807:init_post:[00m GLib runtime version: 2.56.4
0:00:00.053152643  GST_INIT gst.c:809:init_post:[00m GLib headers version: 2.56.4
0:00:00.053164102  GST_INIT gst.c:810:init_post:[00m initialized GStreamer successfully
0:00:00.053258166 0x3f8b5ec0 [36mINFO   [00m [00;01;37;ST_PIPELINE gstparse.c:337:gst_parse_launch_full:[00m parsing pipeline description 'pylonsrc device-index=0 ! video/x-raw, format=(string)BGR ! queue ! videoconvert ! appsink'
0:00:00.077546890 GST_PLUGIN_LOADING gstplugin.c:901:_priv_gst_plugin_load_file_for_registry:[00m plugin "/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstpylon.so" loaded
0:00:00.077598453 0x3f8b5ec0 [36mINFO   [00m [00;01;37;GST_ELEMENT_FACTORY gstelementfactory.c:361:gst_element_factory_create:[00m creating element "pylonsrc"
0:00:00.471130622  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0000)": Unsupported node of type 4
0:00:00.471285625  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0000)": Unsupported node of type 4
0:00:00.517494273  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0000)": Unsupported node of type 4
0:00:00.635336201  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0000)": Unsupported node of type 4
0:00:00.764184811  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0001)": Unsupported node of type 4
0:00:00.764341793  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0001)": Unsupported node of type 4
0:00:00.811331238  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0001)": Unsupported node of type 4
0:00:00.933181789  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0001)": Unsupported node of type 4
0:00:01.076381836  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0002)": Unsupported node of type 4
0:00:01.076515745  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0002)": Unsupported node of type 4
0:00:01.123542535  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0002)": Unsupported node of type 4
0:00:01.233425759  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0002)": Unsupported node of type 4
0:00:01.353073140  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0003)": Unsupported node of type 4
0:00:01.353204132  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0003)": Unsupported node of type 4
0:00:01.399135691  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0003)": Unsupported node of type 4
0:00:01.508430674  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0003)": Unsupported node of type 4
0:00:01.630270339  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0004)": Unsupported node of type 4
0:00:01.630403883  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0004)": Unsupported node of type 4
0:00:01.685627454  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0004)": Unsupported node of type 4
0:00:01.805417911  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0004)": Unsupported node of type 4
0:00:01.927240440  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0005)": Unsupported node of type 4
0:00:01.927373047  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0005)": Unsupported node of type 4
0:00:01.973030017  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0005)": Unsupported node of type 4
0:00:02.093665491  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0005)": Unsupported node of type 4
0:00:02.218282661  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0006)": Unsupported node of type 4
0:00:02.218422299  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0006)": Unsupported node of type 4
0:00:02.265819929  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0006)": Unsupported node of type 4
0:00:02.376767394  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0006)": Unsupported node of type 4
0:00:02.499345928  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0007)": Unsupported node of type 4
0:00:02.499479368  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0007)": Unsupported node of type 4
0:00:02.545168631  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0007)": Unsupported node of type 4
0:00:02.657721961  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0007)": Unsupported node of type 4
0:00:02.800772422  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0008)": Unsupported node of type 4
0:00:02.800927321  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0008)": Unsupported node of type 4
0:00:02.853843658  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0008)": Unsupported node of type 4
0:00:02.976338440  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0008)": Unsupported node of type 4
0:00:03.104715113  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center X" on device "Emulation (0815-0009)": Unsupported node of type 4
0:00:03.104882356  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Center Y" on device "Emulation (0815-0009)": Unsupported node of type 4
0:00:03.151738986  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Generate Software Trigger" on device "Emulation (0815-0009)": Unsupported node of type 4
0:00:03.261083293  pylonsrc gstpylonfeaturewalker.cpp:262:install_properties:[00m Unable to install property "Force Failed Buffer" on device "Emulation (0815-0009)": Unsupported node of type 4
0:00:03.735366479 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstBaseSrc@0x3fd53710>[00m adding pad 'src'
0:00:03.737338134 GST_PLUGIN_LOADING gstplugin.c:901:_priv_gst_plugin_load_file_for_registry:[00m plugin "/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstcoreelements.so" loaded
0:00:03.737386312  GST_ELEMENT_FACTORY gstelementfactory.c:361:gst_element_factory_create:[00m creating element "queue"
0:00:03.737663609 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstQueue@0x3fc24060>[00m adding pad 'sink'
0:00:03.737726892 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstQueue@0x3fc24060>[00m adding pad 'src'
0:00:03.738842904 GST_PLUGIN_LOADING gstplugin.c:901:_priv_gst_plugin_load_file_for_registry:[00m plugin "/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstvideoconvert.so" loaded
0:00:03.738990771  GST_ELEMENT_FACTORY gstelementfactory.c:361:gst_element_factory_create:[00m creating element "videoconvert"
0:00:03.739682452 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstBaseTransform@0x3fb905d0>[00m adding pad 'sink'
0:00:03.739832768 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstBaseTransform@0x3fb905d0>[00m adding pad 'src'
0:00:03.740798725 GST_PLUGIN_LOADING gstplugin.c:901:_priv_gst_plugin_load_file_for_registry:[00m plugin "/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstapp.so" loaded
0:00:03.740928884  GST_ELEMENT_FACTORY gstelementfactory.c:361:gst_element_factory_create:[00m creating element "appsink"
0:00:03.741390404 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstBaseSink@0x3fd61520>[00m adding pad 'sink'
0:00:03.741576032  GST_ELEMENT_FACTORY gstelementfactory.c:361:gst_element_factory_create:[00m creating element "pipeline"
0:00:03.741888174 GST_PIPELINE grammar.y:652:gst_parse_perform_link:[00m linking some pad of GstPylonSrc named pylonsrc0 to some pad of GstQueue named queue0 (0/0) with caps "video/x-raw, format=(string)BGR"
0:00:03.742001718  GST_ELEMENT_FACTORY gstelementfactory.c:361:gst_element_factory_create:[00m creating element "capsfilter"
0:00:03.742362663 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstBaseTransform@0x3fb8a280>[00m adding pad 'sink'
0:00:03.742515791 GST_ELEMENT_PADS gstelement.c:670:gst_element_add_pad:<GstBaseTransform@0x3fb8a280>[00m adding pad 'src'
0:00:03.742640742GST_STATES gstbin.c:2089:gst_bin_get_state_func:<pipeline0>[00m getting state
0:00:03.742775067GST_STATES gstelement.c:2676:gst_element_continue_state:<capsfilter0>[00m completed state change to NULL
0:00:03.742878923 GST_EVENT gstevent.c:1517:gst_event_new_reconfigure:[00m creating reconfigure event
0:00:03.742990384 GST_ELEMENT_PADS gstutils.c:1774:gst_element_link_pads_full:[00m trying to link element pylonsrc0:(any) to element capsfilter0:sink
0:00:03.743067156 GST_ELEMENT_PADS gstelement.c:920:gst_element_get_static_pad:[00m found pad capsfilter0:sink
0:00:03.743137054 GST_PADS gstutils.c:1588:prepare_link_maybe_ghosting:[00m pylonsrc0 and capsfilter0 in same bin, no need for ghost pads
0:00:03.743242108 GST_PADS gstpad.c:2378:gst_pad_link_prepare:[00m trying to link pylonsrc0:src and capsfilter0:sink
0:00:03.743367267 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.743471383 GST_PADS gstpad.c:4232:gst_pad_peer_query:<capsfilter0:src>[00m pad has no peer
0:00:03.743580552 GST_PADS gstpad.c:2586:gst_pad_link_full:[00m linked pylonsrc0:src and capsfilter0:sink, successful
0:00:03.743656804 GST_EVENT gstevent.c:1517:gst_event_new_reconfigure:[00m creating reconfigure event
0:00:03.743728732 GST_EVENT gstpad.c:5808:gst_pad_send_event_unchecked:<pylonsrc0:src>[00m Received event on flushing pad. Discarding
0:00:03.743826599 GST_ELEMENT_PADS gstutils.c:1774:gst_element_link_pads_full:[00m trying to link element capsfilter0:src to element queue0:(any)
0:00:03.743909257 GST_ELEMENT_PADS gstelement.c:920:gst_element_get_static_pad:[00m found pad capsfilter0:src
0:00:03.744014415 GST_PADS gstutils.c:1035:gst_pad_check_link:[00m trying to link capsfilter0:src and queue0:sink
0:00:03.744134209 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.744255566 GST_PADS gstpad.c:4232:gst_pad_peer_query:<queue0:src>[00m pad has no peer
0:00:03.744348328 GST_PADS gstutils.c:1588:prepare_link_maybe_ghosting:[00m capsfilter0 and queue0 in same bin, no need for ghost pads
0:00:03.744432809 GST_PADS gstpad.c:2378:gst_pad_link_prepare:[00m trying to link capsfilter0:src and queue0:sink
0:00:03.744539582 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.744661460 GST_PADS gstpad.c:4232:gst_pad_peer_query:<queue0:src>[00m pad has no peer
0:00:03.744760524 GST_PADS gstpad.c:2586:gst_pad_link_full:[00m linked capsfilter0:src and queue0:sink, successful
0:00:03.744826515 GST_EVENT gstevent.c:1517:gst_event_new_reconfigure:[00m creating reconfigure event
0:00:03.744900215 GST_EVENT gstpad.c:5808:gst_pad_send_event_unchecked:<capsfilter0:src>[00m Received event on flushing pad. Discarding
0:00:03.745024280 GST_PIPELINE grammar.y:652:gst_parse_perform_link:[00m linking some pad of GstQueue named queue0 to some pad of GstVideoConvert named videoconvert0 (0/0) with caps "(NULL)"
0:00:03.745105896 GST_ELEMENT_PADS gstutils.c:1774:gst_element_link_pads_full:[00m trying to link element queue0:(any) to element videoconvert0:(any)
0:00:03.745187668 GST_PADS gstutils.c:1035:gst_pad_check_link:[00m trying to link queue0:src and videoconvert0:sink
0:00:03.745308921 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.745428871 GST_PADS gstpad.c:4232:gst_pad_peer_query:<videoconvert0:src>[00m pad has no peer
0:00:03.747912255 GST_PADS gstutils.c:1588:prepare_link_maybe_ghosting:[00m queue0 and videoconvert0 in same bin, no need for ghost pads
0:00:03.748138301 GST_PADS gstpad.c:2378:gst_pad_link_prepare:[00m trying to link queue0:src and videoconvert0:sink
0:00:03.748295075 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.748429713 GST_PADS gstpad.c:4232:gst_pad_peer_query:<videoconvert0:src>[00m pad has no peer
0:00:03.750772313 GST_PADS gstpad.c:2586:gst_pad_link_full:[00m linked queue0:src and videoconvert0:sink, successful
0:00:03.750897472 GST_EVENT gstevent.c:1517:gst_event_new_reconfigure:[00m creating reconfigure event
0:00:03.750974869 GST_EVENT gstpad.c:5808:gst_pad_send_event_unchecked:<queue0:src>[00m Received event on flushing pad. Discarding
0:00:03.751126122 GST_PIPELINE grammar.y:652:gst_parse_perform_link:[00m linking some pad of GstVideoConvert named videoconvert0 to some pad of GstAppSink named appsink0 (0/0) with caps "(NULL)"
0:00:03.751210187 GST_ELEMENT_PADS gstutils.c:1774:gst_element_link_pads_full:[00m trying to link element videoconvert0:(any) to element appsink0:(any)
0:00:03.751294824 GST_PADS gstutils.c:1035:gst_pad_check_link:[00m trying to link videoconvert0:src and appsink0:sink
0:00:03.751428264 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.751805980 GST_PADS gstutils.c:1588:prepare_link_maybe_ghosting:[00m videoconvert0 and appsink0 in same bin, no need for ghost pads
0:00:03.751933222 GST_PADS gstpad.c:2378:gst_pad_link_prepare:[00m trying to link videoconvert0:src and appsink0:sink
0:00:03.752064683 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.752565370 GST_PADS gstpad.c:2586:gst_pad_link_full:[00m linked videoconvert0:src and appsink0:sink, successful
0:00:03.752711155 GST_EVENT gstevent.c:1517:gst_event_new_reconfigure:[00m creating reconfigure event
0:00:03.752825584 GST_EVENT gstpad.c:5808:gst_pad_send_event_unchecked:<videoconvert0:src>[00m Received event on flushing pad. Discarding
0:00:03.753024807 GST_ELEMENT_PADS gstelement.c:920:gst_element_get_static_pad:[00m found pad appsink0:sink
0:00:03.753226790 pylonsrc gstpylonsrc.c:441:gst_pylon_src_get_caps:<pylonsrc0>[00m Camera not open yet, returning src template caps video/x-raw, format=(string){ GRAY8, RGB, BGR, YUY2, UYVY }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-bayer, format=(string){ rggb, bggr, gbgr, grgb }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:03.753725498GST_STATES gstbin.c:2506:gst_bin_element_set_state:<appsink0>[00m current NULL pending VOID_PENDING, desired next READY
0:00:03.753842376GST_STATES gstelement.c:2676:gst_element_continue_state:<appsink0>[00m completed state change to READY
0:00:03.753921023GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<appsink0>[00m notifying about state-changed NULL to READY (VOID_PENDING pending)
0:00:03.754027536GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'appsink0' changed state to 2(READY) successfully
0:00:03.754126548GST_STATES gstbin.c:2506:gst_bin_element_set_state:<videoconvert0>[00m current NULL pending VOID_PENDING, desired next READY
0:00:03.754238946GST_STATES gstelement.c:2676:gst_element_continue_state:<videoconvert0>[00m completed state change to READY
0:00:03.754327958GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<videoconvert0>[00m notifying about state-changed NULL to READY (VOID_PENDING pending)
0:00:03.754427075GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'videoconvert0' changed state to 2(READY) successfully
0:00:03.754521816GST_STATES gstbin.c:2506:gst_bin_element_set_state:<queue0>[00m current NULL pending VOID_PENDING, desired next READY
0:00:03.754601037GST_STATES gstelement.c:2676:gst_element_continue_state:<queue0>[00m completed state change to READY
0:00:03.754669580GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<queue0>[00m notifying about state-changed NULL to READY (VOID_PENDING pending)
0:00:03.754759321GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'queue0' changed state to 2(READY) successfully
0:00:03.754846094GST_STATES gstbin.c:2506:gst_bin_element_set_state:<capsfilter0>[00m current NULL pending VOID_PENDING, desired next READY
0:00:03.754920679GST_STATES gstelement.c:2676:gst_element_continue_state:<capsfilter0>[00m completed state change to READY
0:00:03.754989430GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<capsfilter0>[00m notifying about state-changed NULL to READY (VOID_PENDING pending)
0:00:03.755131100GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'capsfilter0' changed state to 2(READY) successfully
0:00:03.755227352GST_STATES gstbin.c:2506:gst_bin_element_set_state:<pylonsrc0>[00m current NULL pending VOID_PENDING, desired next READY
0:00:03.755303499GST_STATES gstelement.c:2676:gst_element_continue_state:<pylonsrc0>[00m completed state change to READY
0:00:03.755371052GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<pylonsrc0>[00m notifying about state-changed NULL to READY (VOID_PENDING pending)
0:00:03.755455742GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'pylonsrc0' changed state to 2(READY) successfully
0:00:03.755533920GST_STATES gstelement.c:2651:gst_element_continue_state:<pipeline0>[00m committing state from NULL to READY, pending PLAYING, next PAUSED
0:00:03.755601890GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<pipeline0>[00m notifying about state-changed NULL to READY (PLAYING pending)
0:00:03.755679913GST_STATES gstelement.c:2658:gst_element_continue_state:<pipeline0>[00m continue state change READY to PAUSED, final PLAYING
0:00:03.755777102GST_STATES gstbin.c:2506:gst_bin_element_set_state:<appsink0>[00m current READY pending VOID_PENDING, desired next PAUSED
0:00:03.755873250GST_STATES gstbin.c:2960:gst_bin_change_state_func:<pipeline0>[00m child 'appsink0' is changing state asynchronously to PAUSED
0:00:03.755951377GST_STATES gstbin.c:2506:gst_bin_element_set_state:<videoconvert0>[00m current READY pending VOID_PENDING, desired next PAUSED
0:00:03.756034295GST_STATES gstelement.c:2676:gst_element_continue_state:<videoconvert0>[00m completed state change to PAUSED
0:00:03.756102630GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<videoconvert0>[00m notifying about state-changed READY to PAUSED (VOID_PENDING pending)
0:00:03.756182996GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'videoconvert0' changed state to 3(PAUSED) successfully
0:00:03.756267373GST_STATES gstbin.c:2506:gst_bin_element_set_state:<queue0>[00m current READY pending VOID_PENDING, desired next PAUSED
0:00:03.756382531 task gsttask.c:457:gst_task_set_lock:[00m setting stream lock 0x3fb7a5f0 on task 0x3fc1f050
0:00:03.756459408 GST_PADS gstpad.c:6154:gst_pad_start_task:<queue0:src>[00m created task 0x3fc1f050
0:00:03.756635714GST_STATES gstelement.c:2676:gst_element_continue_state:<queue0>[00m completed state change to PAUSED
0:00:03.756724101GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<queue0>[00m notifying about state-changed READY to PAUSED (VOID_PENDING pending)
0:00:03.756813998GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'queue0' changed state to 3(PAUSED) successfully
0:00:03.756932230GST_STATES gstbin.c:2506:gst_bin_element_set_state:<capsfilter0>[00m current READY pending VOID_PENDING, desired next PAUSED
0:00:03.757035982GST_STATES gstelement.c:2676:gst_element_continue_state:<capsfilter0>[00m completed state change to PAUSED
0:00:03.757113536GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<capsfilter0>[00m notifying about state-changed READY to PAUSED (VOID_PENDING pending)
0:00:03.757201454GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'capsfilter0' changed state to 3(PAUSED) successfully
0:00:03.757283748GST_STATES gstbin.c:2506:gst_bin_element_set_state:<pylonsrc0>[00m current READY pending VOID_PENDING, desired next PAUSED
0:00:03.757379270 pylonsrc gstpylonsrc.c:664:gst_pylon_src_start:<pylonsrc0>[00m Attempting to create camera device with the following configuration:
	name: (null)
	serial number: (null)
	index: 0
	user set: (null) 
	PFS filepath: (null). If defined, the PFS file will override the user set configuration.
0:00:04.030558211  basesrc gstbasesrc.c:1358:gst_base_src_do_seek:<pylonsrc0>[00m seeking: time segment start=0:00:00.000000000, offset=0:00:00.000000000, stop=99:99:99.999999999, rate=1.000000, applied_rate=1.000000, flags=0x00, time=0:00:00.000000000, base=0:00:00.000000000, position 0:00:00.000000000, duration 99:99:99.999999999
0:00:04.030633785 task gsttask.c:457:gst_task_set_lock:[00m setting stream lock 0x3fb7a150 on task 0x3fc1f170
0:00:04.030651963 GST_PADS gstpad.c:6154:gst_pad_start_task:<pylonsrc0:src>[00m created task 0x3fc1f170
0:00:04.030838321GST_STATES gstelement.c:2676:gst_element_continue_state:<pylonsrc0>[00m completed state change to PAUSED
0:00:04.030902228GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<pylonsrc0>[00m notifying about state-changed READY to PAUSED (VOID_PENDING pending)
0:00:04.030949729GST_STATES gstbin.c:2997:gst_bin_change_state_func:<pipeline0>[00m child 'pylonsrc0' changed state to 3(PAUSED) successfully without preroll
0:00:04.030987959GST_STATES gstelement.c:2651:gst_element_continue_state:<pipeline0>[00m committing state from READY to PAUSED, pending PLAYING, next PLAYING
0:00:04.031007699GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<pipeline0>[00m notifying about state-changed READY to PAUSED (PLAYING pending)
0:00:04.031017231 ST_ELEMENT_PADS gstelement.c:917:gst_element_get_static_pad:[00m no such pad 'sink' in element "pylonsrc0"
0:00:04.031086607GST_STATES gstelement.c:2658:gst_element_continue_state:<pipeline0>[00m continue state change PAUSED to PLAYING, final PLAYING
0:00:04.031111712   default gstutils.c:3981:gst_pad_create_stream_id_internal:<pylonsrc0:src>[00m Creating random stream-id, consider implementing a deterministic way of creating a stream-id
0:00:04.031260621 GST_EVENT gstevent.c:1388:gst_event_new_latency:[00m creating latency event 0:00:00.000000000
0:00:04.031382915 in gstbin.c:2783:gst_bin_do_latency_func:<pipeline0>[00m configured latency of 0:00:00.000000000
0:00:04.031436510GST_STATES gstbin.c:2506:gst_bin_element_set_state:<appsink0>[00m current READY pending PAUSED, desired next PLAYING
0:00:04.031455521GST_STATES gstbin.c:2960:gst_bin_change_state_func:<pipeline0>[00m child 'appsink0' is changing state asynchronously to PLAYING
0:00:04.031479323GST_STATES gstbin.c:2506:gst_bin_element_set_state:<videoconvert0>[00m current PAUSED pending VOID_PENDING, desired next PLAYING
0:00:04.031498074GST_STATES gstelement.c:2676:gst_element_continue_state:<videoconvert0>[00m completed state change to PLAYING
0:00:04.031514428GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<videoconvert0>[00m notifying about state-changed PAUSED to PLAYING (VOID_PENDING pending)
0:00:04.031543387GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'videoconvert0' changed state to 4(PLAYING) successfully
0:00:04.031982875GST_STATES gstbin.c:2506:gst_bin_element_set_state:<queue0>[00m current PAUSED pending VOID_PENDING, desired next PLAYING
0:00:04.032014438GST_STATES gstelement.c:2676:gst_element_continue_state:<queue0>[00m completed state change to PLAYING
0:00:04.032031314GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<queue0>[00m notifying about state-changed PAUSED to PLAYING (VOID_PENDING pending)
0:00:04.032077356 src gstpylonsrc.c:462:gst_pylon_src_get_caps:<pylonsrc0>[00m Returning caps video/x-raw, format=(string){ GRAY8, BGR, RGB }, width=(int)[ 1, 4096 ], height=(int)[ 1, 4096 ], framerate=(fraction)[ 1/100, 10000/1 ]; video/x-bayer, format=(string){ grbg, rggb, gbrg, bggr }, width=(int)[ 1, 4096 ], height=(int)[ 1, 4096 ], framerate=(fraction)[ 1/100, 10000/1 ]
0:00:04.032077929GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'queue0' changed state to 4(PLAYING) successfully
0:00:04.032214599GST_STATES gstbin.c:2506:gst_bin_element_set_state:<capsfilter0>[00m current PAUSED pending VOID_PENDING, desired next PLAYING
0:00:04.032236839GST_STATES gstelement.c:2676:gst_element_continue_state:<capsfilter0>[00m completed state change to PLAYING
0:00:04.032253558GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<capsfilter0>[00m notifying about state-changed PAUSED to PLAYING (VOID_PENDING pending)
0:00:04.032280069GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'capsfilter0' changed state to 4(PLAYING) successfully
0:00:04.032319913GST_STATES gstelement.c:2676:gst_element_continue_state:<pylonsrc0>[00m completed state change to PLAYING
0:00:04.032336737GST_STATES gstelement.c:2579:_priv_gst_element_state_changed:<pylonsrc0>[00m notifying about state-changed PAUSED to PLAYING (VOID_PENDING pending)
0:00:04.032361529GST_STATES gstbin.c:2954:gst_bin_change_state_func:<pipeline0>[00m child 'pylonsrc0' changed state to 4(PLAYING) successfully
0:00:04.032397259GST_STATES gstbin.c:2089:gst_bin_get_state_func:<pipeline0>[00m getting state
0:00:04.032412051GST_STATES gstelement.c:2392:gst_element_get_state_func:<pipeline0>[00m waiting for element to commit state
0:00:04.032754870 src gstpylonsrc.c:538:gst_pylon_src_fixate:<pylonsrc0>[00m Fixated caps to video/x-raw, format=(string)BGR, width=(int)1024, height=(int)1040, framerate=(fraction)30/1
0:00:04.032797267 src gstpylonsrc.c:558:gst_pylon_src_set_caps:<pylonsrc0>[00m Setting new caps: video/x-raw, format=(string)BGR, width=(int)1024, height=(int)1040, framerate=(fraction)30/1
0:00:04.035066063 GST_EVENT gstevent.c:814:gst_event_new_caps:[00m creating caps event video/x-raw, format=(string)BGR, width=(int)1024, height=(int)1040, framerate=(fraction)30/1
0:00:04.035648887 etransform gstbasetransform.c:1308:gst_base_transform_setcaps:<capsfilter0>[00m reuse caps
0:00:04.035917851 GST_EVENT gstevent.c:814:gst_event_new_caps:[00m creating caps event video/x-raw, format=(string)BGR, width=(int)1024, height=(int)1040, framerate=(fraction)30/1
0:00:04.036894538 basetransform gstbasetransform.c:1308:gst_base_transform_setcaps:<videoconvert0>[00m reuse caps
0:00:04.037425225 34mGST_EVENT gstevent.c:814:gst_event_new_caps:[00m creating caps event video/x-raw, format=(string)BGR, width=(int)1024, height=(int)1040, framerate=(fraction)30/1
0:00:04.037550176 34mGST_EVENT gstevent.c:814:gst_event_new_caps:[00m creating caps event video/x-raw, format=(string)BGR, width=(int)1024, height=(int)1040, framerate=(fraction)30/1
0:00:04.039300420 GST_ELEMENT_PADS gstpad.c:2134:gst_pad_unlink:[00m unlinking pylonsrc0:src(0x3fb7a0e0) and capsfilter0:sink(0x3fb7aec0)
0:00:04.039368702 GST_ELEMENT_PADS gstpad.c:2188:gst_pad_unlink:[00m unlinked pylonsrc0:src and capsfilter0:sink
0:00:04.039409224 GST_ELEMENT_PADS gstpad.c:2134:gst_pad_unlink:[00m unlinking capsfilter0:src(0x3fb7b110) and queue0:sink(0x3fb7a330)
0:00:04.039436152 GST_ELEMENT_PADS gstpad.c:2188:gst_pad_unlink:[00m unlinked capsfilter0:src and queue0:sink
0:00:04.039463444GST_PARENTAGE gstbin.c:1801:gst_bin_remove_func:<pipeline0>[00m removed child "capsfilter0"
0:00:04.039507768 44m GST_REFCOUNTING gstelement.c:3251:gst_element_dispose:<capsfilter0>[00m 0x3fb8a280 dispose

(python3:2713): GStreamer-CRITICAL **: 19:04:38.361: 
Trying to dispose element capsfilter0, but it is in PLAYING instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.

0:00:04.039614593 44m GST_REFCOUNTING gstelement.c:3328:gst_element_finalize:<capsfilter0>[00m 0x3fb8a280 finalize
0:00:04.039634437 44m GST_REFCOUNTING gstelement.c:3334:gst_element_finalize:<capsfilter0>[00m 0x3fb8a280 finalize parent
0:00:04.039672198 GST_ELEMENT_PADS gstpad.c:2134:gst_pad_unlink:[00m unlinking videoconvert0:src(0x3fb7aa20) and appsink0:sink(0x3fb7ac70)
0:00:04.039705845 GST_ELEMENT_PADS gstpad.c:2188:gst_pad_unlink:[00m unlinked videoconvert0:src and appsink0:sink
0:00:04.039735585GST_PARENTAGE gstbin.c:1801:gst_bin_remove_func:<pipeline0>[00m removed child "appsink0"
0:00:04.039776784 GST_ELEMENT_PADS gstpad.c:2134:gst_pad_unlink:[00m unlinking queue0:src(0x3fb7a580) and videoconvert0:sink(0x3fb7a7d0)
0:00:04.039815430 GST_ELEMENT_PADS gstpad.c:2188:gst_pad_unlink:[00m unlinked queue0:src and videoconvert0:sink
0:00:04.039853139GST_PARENTAGE gstbin.c:1801:gst_bin_remove_func:<pipeline0>[00m removed child "videoconvert0"
0:00:04.039886473GST_PARENTAGE gstbin.c:1801:gst_bin_remove_func:<pipeline0>[00m removed child "queue0"
0:00:04.039917672 44m GST_REFCOUNTING gstelement.c:3251:gst_element_dispose:<queue0>[00m 0x3fc24060 dispose

(python3:2713): GStreamer-CRITICAL **: 19:04:38.362: 
Trying to dispose element queue0, but it is in PLAYING instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.

0:00:04.039983975 44m GST_REFCOUNTING gstelement.c:3328:gst_element_finalize:<queue0>[00m 0x3fc24060 finalize
0:00:04.040000382 44m GST_REFCOUNTING gstelement.c:3334:gst_element_finalize:<queue0>[00m 0x3fc24060 finalize parent
0:00:04.040029914GST_PARENTAGE gstbin.c:1801:gst_bin_remove_func:<pipeline0>[00m removed child "pylonsrc0"
0:00:04.040055748 44m GST_REFCOUNTING gstelement.c:3251:gst_element_dispose:<pylonsrc0>[00m 0x3fd53710 dispose

(python3:2713): GStreamer-CRITICAL **: 19:04:38.362: 
Trying to dispose element pylonsrc0, but it is in PLAYING instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.

0:00:04.040107520 44m GST_REFCOUNTING gstelement.c:3328:gst_element_finalize:<pylonsrc0>[00m 0x3fd53710 finalize
0:00:04.040122155 44m GST_REFCOUNTING gstelement.c:3334:gst_element_finalize:<pylonsrc0>[00m 0x3fd53710 finalize parent
0:00:04.040138458 44m GST_REFCOUNTING gstelement.c:3251:gst_element_dispose:<pipeline0>[00m 0x3fb640e0 dispose

(python3:2713): GStreamer-CRITICAL **: 19:04:38.362: 
Trying to dispose element pipeline0, but it is in PAUSED instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.

0:00:04.040180281 44m GST_REFCOUNTING gstelement.c:3328:gst_element_finalize:<pipeline0>[00m 0x3fb640e0 finalize
0:00:04.040194813 44m GST_REFCOUNTING gstelement.c:3334:gst_element_finalize:<pipeline0>[00m 0x3fb640e0 finalize parent
[ WARN:[email protected]] global /media/user/f84bee7b-8e2b-492f-9cdc-15323efd340d/opencv/modules/videoio/src/cap_gstreamer.cpp (1356) open OpenCV | GStreamer warning: unable to start pipeline
0:00:04.040280127 44m GST_REFCOUNTING gstelement.c:3251:gst_element_dispose:<videoconvert0>[00m 0x3fb905d0 dispose

(python3:2713): GStreamer-CRITICAL **: 19:04:38.362: 
Trying to dispose element videoconvert0, but it is in PLAYING instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.

0:00:04.040344556 44m GST_REFCOUNTING gstelement.c:3328:gst_element_finalize:<videoconvert0>[00m 0x3fb905d0 finalize
0:00:04.040362264 44m GST_REFCOUNTING gstelement.c:3334:gst_element_finalize:<videoconvert0>[00m 0x3fb905d0 finalize parent
[ WARN:[email protected]] global /media/user/f84bee7b-8e2b-492f-9cdc-15323efd340d/opencv/modules/videoio/src/cap_gstreamer.cpp (862) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
0:00:04.040427578 44m GST_REFCOUNTING gstelement.c:3251:gst_element_dispose:<appsink0>[00m 0x3fd61520 dispose

(python3:2713): GStreamer-CRITICAL **: 19:04:38.362: 
Trying to dispose element appsink0, but it is in READY instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.

0:00:04.040480652 44m GST_REFCOUNTING gstelement.c:3328:gst_element_finalize:<appsink0>[00m 0x3fd61520 finalize
0:00:04.040497111 44m GST_REFCOUNTING gstelement.c:3334:gst_element_finalize:<appsink0>[00m 0x3fd61520 finalize parent

import sys
import os
sys.path.append('../')
import gi
import configparser
gi.require_version('Gst', '1.0')
from gi.repository import GObject, Gst
from gi.repository import GLib
from common.is_aarch_64 import is_aarch64
from common.bus_call import bus_call
from cameras import Cameras


def main():
    # No matter where this program is called from, use local paths
    local_path = os.path.dirname(os.path.abspath(__file__))
    
    # imports important only to this function
    import math
    import pypylon
    from pypylon import genicam
[cameras.txt](https://github.com/basler/gst-plugin-pylon/files/12096416/cameras.txt)

    from pypylon import pylon

    # Get the transport layer factory.
    tlFactory = pylon.TlFactory.GetInstance()

    # Get all attached devices and exit application if no device is found.
    devices = tlFactory.EnumerateDevices()

    print("Detected Basler Cameras")
    print([device.GetFriendlyName() for device in devices])
    print("Building list by serial number")
    cameras = [device.GetSerialNumber() for device in devices]
    
     
    Gst.init(None)

    # Create gstreamer elements */
    # Create Pipeline element that will form a connection of other elements
    print("Creating Pipeline \n ")
    pipeline = Gst.Pipeline()

    if not pipeline:
        sys.stderr.write(" Unable to create Pipeline \n")


    print("Creating nvvidconv \n ")
    nvvidconv = Gst.ElementFactory.make("nvvideoconvert", "convertor")
    if not nvvidconv:
        sys.stderr.write(" Unable to create nvvidconv \n")        
        

    print("Creating streamux \n ")
    # Create nvstreammux instance to form batches from one or more sources.
    streammux = Gst.ElementFactory.make("nvstreammux", "Stream-muxer")
    if not streammux:
        sys.stderr.write(" Unable to create NvStreamMux \n")

    pipeline.add(streammux)
    
    cams = Cameras(pipeline=pipeline, devices=cameras)
    cams.attach_to(streammux)

    print("Creating Pgie \n ")
    pgie = Gst.ElementFactory.make("nvinfer", "primary-inference")
    if not pgie:
        sys.stderr.write(" Unable to create pgie \n")
    pgie.set_property('config-file-path', "/home/arun/Documents/DeepStream-Yolo/config_infer_primary_yoloV5.txt")

    print("Creating nvosd \n ")
    nvosd = Gst.ElementFactory.make("nvdsosd", "onscreendisplay")
    if not nvosd:
        sys.stderr.write(" Unable to create nvosd \n")
    if(is_aarch64()):
        print("Creating transform \n ")
        transform=Gst.ElementFactory.make("nvegltransform", "nvegl-transform")
        if not transform:
            sys.stderr.write(" Unable to create transform \n")

    print("Creating EGLSink \n")
    sink = Gst.ElementFactory.make("nveglglessink", "nvvideo-renderer")
    if not sink:
        sys.stderr.write(" Unable to create egl sink \n")
        
        
    streammux.set_property('width', 640)
    streammux.set_property('height', 480)
    streammux.set_property('batch-size', 1)
    streammux.set_property('batched-push-timeout', 4000000)
    
    pipeline.add(nvvidconv)
    print("Adding elements to Pipeline \n")
    pipeline.add(pgie)
    pipeline.add(nvosd)
    if is_aarch64():
        pipeline.add(transform)
    pipeline.add(sink)
    
    print("Linking elements in the Pipeline \n")
    streammux.link(pgie)
    pgie.link(nvosd)
    if is_aarch64():
        nvosd.link(transform)
        transform.link(sink)
    else:
        nvosd.link(sink)   
    
    # create an event loop and feed gstreamer bus mesages to it
    loop = GLib.MainLoop()
    bus = pipeline.get_bus()
    bus.add_signal_watch()
    bus.connect ("message", bus_call, loop)

    # Lets add probe to get informed of the meta data generated, we add probe to
    # the sink pad of the osd element, since by that time, the buffer would have
    # had got all the metadata.
    osdsinkpad = nvosd.get_static_pad("sink")
    if not osdsinkpad:
        sys.stderr.write(" Unable to get sink pad of nvosd \n")
    
    # start play back and listen to events
    print("Starting pipeline .... \n")
    pipeline.set_state(Gst.State.PLAYING)
    try:
        loop.run()
    except:
        pass
    # cleanup
    pipeline.set_state(Gst.State.NULL)
    
    
if __name__ == '__main__':
    sys.exit(main())

arun@ubuntu:~/Documents/DeepStream-Yolo/python$ python3 myPipeline.py 
Detected Basler Cameras
['Basler a2A1920-51gcBAS (40122507)']
Building list by serial number
Creating Pipeline 
Creating nvvidconv 
Creating streamux 
Building GStreamer infrastructure for  ['40122507']
Creating pipeline for device  40122507
Creating Source 
Creating Video Converter 

Attaching 1 cameras to <class '__gi__.GstNvStreamMux'>
Attaching 40122507
Creating Pgie 
Creating nvosd 
Creating transform 
Creating EGLSink 
Adding elements to Pipeline 
Linking elements in the Pipeline 
Starting pipeline .... 

Using winsys: x11 
0:00:12.087228857  6456      0xc6ba750 INFO                 nvinfer gstnvinfer.cpp:646:gst_nvinfer_logger:<primary-inference> NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1909> [UID = 1]: deserialized trt engine from :/home/arun/Documents/DeepStream-Yolo/model_b1_gpu0_fp32.engine
WARNING: [TRT]: The getMaxBatchSize() function should not be used with an engine built from a network created with NetworkDefinitionCreationFlag::kEXPLICIT_BATCH flag. This function will always return 1.
INFO: [Implicit Engine Info]: layers num: 4
0   INPUT  kFLOAT input           3x640x640       
1   OUTPUT kFLOAT boxes           25200x4         
2   OUTPUT kFLOAT scores          25200x1         
3   OUTPUT kFLOAT classes         25200x1         

0:00:12.150700626  6456      0xc6ba750 INFO                 nvinfer gstnvinfer.cpp:646:gst_nvinfer_logger:<primary-inference> NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:2012> [UID = 1]: Use deserialized engine model: /home/arun/Documents/DeepStream-Yolo/model_b1_gpu0_fp32.engine
0:00:12.163352081  6456      0xc6ba750 INFO                 nvinfer gstnvinfer_impl.cpp:328:notifyLoadModelStatus:<primary-inference> [UID 1]: Load new model:/home/arun/Documents/DeepStream-Yolo/config_infer_primary_yoloV5.txt sucessfully
Segmentation fault (core dumped)

arun@ubuntu:~/Documents/DeepStream-Yolo/python$ GST_DEBUG=3 python3 myPipeline.py 
Detected Basler Cameras
['Basler a2A1920-51gcBAS (40122507)']
Building list by serial number
Creating Pipeline 
 
Creating nvvidconv 
 
Creating streamux 
 
Building GStreamer infrastructure for  ['40122507']
Creating pipeline for device  40122507
Creating Source 
 
0:00:01.835360876  4958      0x473c070 WARN                 default gstpyloncache.cpp:166:GetDoubleAttribute: Could not read values for feature ChunkGain from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkGain”
0:00:01.908749885  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature ChunkLineStatusAll from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkLineStatusAll”
0:00:01.942007701  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature ChunkFrameID from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkFrameID”
0:00:01.978985288  4958      0x473c070 WARN                 default gstpyloncache.cpp:166:GetDoubleAttribute: Could not read values for feature ChunkExposureTime from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkExposureTime”
0:00:02.026015845  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature BslChunkTimestampValue from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “BslChunkTimestampValue”
0:00:02.087580441  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature BslChunkTimestampValue from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “BslChunkTimestampValue”
0:00:02.148472161  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature BslChunkTimestampValue from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “BslChunkTimestampValue”
0:00:02.209990196  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature ChunkCounterValue from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkCounterValue”
0:00:02.269796938  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature ChunkCounterValue from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkCounterValue”
0:00:02.331931047  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature ChunkPayloadCRC16 from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “ChunkPayloadCRC16”
0:00:02.871811687  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature BslPtpUcPortAddrIndex from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “BslPtpUcPortAddrIndex”
0:00:02.909591431  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature BslPtpUcPortAddr from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “BslPtpUcPortAddr”
0:00:02.969141869  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature PtpOffsetFromMaster from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “PtpOffsetFromMaster”
0:00:03.009569167  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature PtpClockID from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “PtpClockID”
0:00:03.053887666  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature PtpParentClockID from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “PtpParentClockID”
0:00:03.095840973  4958      0x473c070 WARN                 default gstpyloncache.cpp:150:GetIntegerAttribute: Could not read values for feature PtpGrandmasterClockID from file /home/arun/.cache/gstpylon/55e64db268643a27bcf9c4bf7fea78f9b3c715b0cc2f69c6185db24f7975897b.config: Key file does not have group “PtpGrandmasterClockID”
Creating Video Converter 

Attaching 1 cameras to <class '__gi__.GstNvStreamMux'>
Attaching 40122507
Creating Pgie 
 
Unknown or legacy key specified 'unique-id' for group [property]
Creating nvosd 
 
Creating transform 
 
Creating EGLSink 

Adding elements to Pipeline 

Linking elements in the Pipeline 

Starting pipeline .... 


Using winsys: x11 
WARNING: [TRT]: Using an engine plan file across different models of devices is not recommended and is likely to affect performance or even cause errors.
0:00:11.651170983  4958      0x473c070 INFO                 nvinfer gstnvinfer.cpp:646:gst_nvinfer_logger:<primary-inference> NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1909> [UID = 1]: deserialized trt engine from :/home/arun/Documents/DeepStream-Yolo/model_b1_gpu0_fp32.engine
WARNING: [TRT]: The getMaxBatchSize() function should not be used with an engine built from a network created with NetworkDefinitionCreationFlag::kEXPLICIT_BATCH flag. This function will always return 1.
INFO: [Implicit Engine Info]: layers num: 4
0   INPUT  kFLOAT input           3x640x640       
1   OUTPUT kFLOAT boxes           25200x4         
2   OUTPUT kFLOAT scores          25200x1         
3   OUTPUT kFLOAT classes         25200x1         

0:00:11.718167188  4958      0x473c070 INFO                 nvinfer gstnvinfer.cpp:646:gst_nvinfer_logger:<primary-inference> NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:2012> [UID = 1]: Use deserialized engine model: /home/arun/Documents/DeepStream-Yolo/model_b1_gpu0_fp32.engine
0:00:11.730642666  4958      0x473c070 INFO                 nvinfer gstnvinfer_impl.cpp:328:notifyLoadModelStatus:<primary-inference> [UID 1]: Load new model:/home/arun/Documents/DeepStream-Yolo/config_infer_primary_yoloV5.txt sucessfully
0:00:12.448095840  4958      0x47ba300 FIXME                default gstutils.c:3980:gst_pad_create_stream_id_internal:<pylon-source0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
Segmentation fault (core dumped)
arun@ubuntu:~/Documents/DeepStream-Yolo/python$