Change capsfilter in pylonsrc

[rbnrtg]

Hi,

My camera is Basler daA3840-45uc (USB Model).

I am trying to modify the parameters of the capsfilter element of pylonsrc and I do it as follows:

GstCaps *new_caps;
GstElement *f;
gchar * caps_description;

caps_description = g_strdup_printf("video/x-raw, width=(int)1920, height=(int)1080");
new_caps = gst_caps_from_string(caps_description);
g_free (caps_description);

f = gst_bin_get_by_name_recurse_up(GST_BIN(pipeline), "filter");

if (GST_IS_ELEMENT(f)) {
g_object_set(G_OBJECT(f), "caps", new_caps, NULL);
}

g_object_unref(f);
gst_caps_unref(new_caps);

But when I run this program for the Pylonsrc library on a machine with ARM architecture, I get a Segmentation Fault that comes from the library and only occurs when I try to modify the caps element.

The error that i receive in GDB is:
#0 0x0000fffff5ed84e8 in () at /opt/BASLER/lib/libpylonbase.so.7.4
#1 0x0000fffff5eda7d8 in () at /opt/BASLER/lib/libpylonbase.so.7.4
#2 0x0000fffff5d9271c in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() ()
at /opt/BASLER/lib/libpylonbase.so.7.4
#3 0x0000fffff5ed69e8 in () at /opt/BASLER/lib/libpylonbase.so.7.4
#4 0x0000fffff5ed363c in () at /opt/BASLER/lib/libpylonbase.so.7.4
#5 0x0000fffff5edb158 in () at /opt/BASLER/lib/libpylonbase.so.7.4
#6 0x0000fffff5d9271c in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() ()
at /opt/BASLER/lib/libpylonbase.so.7.4
#7 0x0000fffff5ed2608 in Pylon::CGrabResultPtr::~CGrabResultPtr() ()
at /opt/BASLER/lib/libpylonbase.so.7.4
#8 0x0000fffff6be4074 in Pylon::CDeviceSpecificGrabResultPtrPylon::CBaslerUniversalGrabResultData::~CDeviceSpecificGrabResultPtr() (this=0xffffc8000fc0, __in_chrg=)
at /opt/BASLER/include/pylon/private/DeviceSpecificGrabResultPtr.h:277
#9 Pylon::CBaslerUniversalGrabResultPtr::~CBaslerUniversalGrabResultPtr()
(this=0xffffc8000fc0, __in_chrg=)
at /opt/BASLER/include/pylon/BaslerUniversalGrabResultPtr.h:27
#10 Pylon::CBaslerUniversalGrabResultPtr::~CBaslerUniversalGrabResultPtr()
(this=0xffffc8000fc0, __in_chrg=)
at /opt/BASLER/include/pylon/BaslerUniversalGrabResultPtr.h:27
#11 free_ptr_grab_result(gpointer) (data=0xffffc8000fc0) at ../ext/pylon/gstpylon.cpp:474
#12 0x0000fffff7e8e5c0 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#13 0x0000fffff7ed83a0 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#14 0x0000fffff7e9a188 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#15 0x0000fffff6b4067c in () at /usr/lib/aarch64-linux-gnu/libgstbase-1.0.so.0
#16 0x0000fffff6b3fd74 in () at /usr/lib/aarch64-linux-gnu/libgstbase-1.0.so.0
#17 0x0000fffff7edcbf0 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#18 0x0000fffff7edec38 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#19 0x0000fffff7ee6728 in gst_pad_push () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#20 0x0000fffff6b3fe84 in () at /usr/lib/aarch64-linux-gnu/libgstbase-1.0.so.0
#21 0x0000fffff7edcbf0 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#22 0x0000fffff7edec38 in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#23 0x0000fffff7ee6728 in gst_pad_push () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#24 0x0000fffff6b3b75c in () at /usr/lib/aarch64-linux-gnu/libgstbase-1.0.so.0
#25 0x0000fffff7f1902c in () at /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so.0
#26 0x0000fffff7d1e3c8 in () at /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#27 0x0000fffff7d1d8f4 in () at /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#28 0x0000fffff7c76648 in start_thread (arg=0xfffff09a0ab0) at pthread_create.c:477
#29 0x0000fffff7bccfdc in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Has anyone else had something similar happen to them? Or am I doing something wrong in changing the caps parameters?

Thank you!