Aw: Re: Re: Re: GStreamer application access violation in random locations

[pfarmer]

Thanks again Sebastian,

I am in contact with the Simulink developers now, but not much progress
there yet. 
Generally speaking: *is it safe to link the GStreamer binaries with a VS2013
compiler?*
Meaning: I have installed GStreamer binaries for 64bit Windows. These are
compiled with MinGW as far as I can see. And I have a project that is
compiled with VS2013 64bit. This project uses (links) the GStreamer MinGW
64bit libraries. Is this actually safe?


The simple test program that I used:

========================================
#include <gst/gst.h>

int main(int argc, char** argv)
{
    gst_init(NULL, NULL);
	GstElement* pipeline = gst_parse_launch("videotestsrc ! autovideosink",
NULL);
	gst_element_set_state(pipeline, GST_STATE_PLAYING);
    
    while (true){};
}
=======================================
This does work always.


And the corresponding Simulink block:
=======================================
#define S_FUNCTION_LEVEL 2
#define S_FUNCTION_NAME  sfunc_gstmin

#include <simstruc.h>

#include <gst/gst.h>

static void mdlInitializeSizes(SimStruct *S)
{
    gst_init(NULL, NULL);
	GstElement* pipeline = gst_parse_launch("videotestsrc ! autovideosink",
NULL);
	gst_element_set_state(pipeline, GST_STATE_PLAYING);
    
	ssSetNumSFcnParams(S, 0);
}

static void mdlInitializeSampleTimes(SimStruct *S)
{
}

static void mdlOutputs(SimStruct *S, int_T tid)
{
	UNUSED_ARG(tid);
	UNUSED_ARG(S);
}

static void mdlTerminate(SimStruct *S)
{
	UNUSED_ARG(S);
}


// Required S-function trailer

#ifdef  MATLAB_MEX_FILE    /* Is this file being compiled as a MEX-file? */
#include "simulink.c"      /* MEX-file interface mechanism */
#else
#include "cg_sfun.h"       /* Code generation registration function */
#endif


==================================================
This does crash often (not always; once run: also no crash anymore), when
run in a Simulink model.






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