Close a pipeline with g_main_loop_quit() fonction

[Rom6]

Hi all, first of all excuse me for my quiet bad english it's not my natural
language.

So my problème is that i dev a software where i stream with gstreamer my
desktop, and i want to close the pipeline with the function
g_main_quit(main_loop), but i dunno where to pace it.
To be clear i want to exit of the function and close the pipeline.

Here  a portion of code :



So how can exit the function with g_main_quit() function ?

Thanks a lot , bye



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[James Cameron]

Your code was missing.  I'll presume C.

You can put g_main_quit anywhere.

But g_main_quit alone won't exit a function or immediately close a
GStreamer pipeline.

To exit a function, use language elements such as "return;".

To close a GStreamer pipeline, g_main_quit will cause the main loop to
exit, and what happens next depends on the code after your main loop.

A return from main() will cause the GStreamer threads to exit.

A more common method is to send an end of stream event, wait for the
event to propagate, detect pipeline state change using a message
signal handler, then destroy the pipeline and call g_main_quit.

On Tue, Sep 11, 2018 at 10:47:42PM -0500, Rom6 wrote:

> Hi all, first of all excuse me for my quiet bad english it's not my natural
> language.
>
> So my problème is that i dev a software where i stream with gstreamer my
> desktop, and i want to close the pipeline with the function
> g_main_quit(main_loop), but i dunno where to pace it.
> To be clear i want to exit of the function and close the pipeline.
>
> Here  a portion of code :
>
>
>
> So how can exit the function with g_main_quit() function ?
>
> Thanks a lot , bye
>
>
>
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
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James Cameron
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[Rom6]

Hi , well sry my last message was incomplet.

So i want to exit the function and close the pipeline for go back to another
function (its a server applications) wish is on listening state, in order to
call some other options. here the piece of code i tried to put on my last
message :

main_loop = g_main_loop_new (NULL, FALSE);
    data.loop = main_loop;
    data.pipeline = pipeline;

    gst_bus_add_signal_watch (bus);
    g_signal_connect (bus, "message", G_CALLBACK (cb_message), &data);


    g_main_loop_run (main_loop);

    /* Free resources */
    g_main_loop_unref (main_loop);
    gst_object_unref (bus);
    gst_element_set_state (pipeline, GST_STATE_NULL);
    gst_object_unref (pipeline);

    free(buffer);

    close(csock);

    pthread_exit(NULL);

So i make some test by putting g_main_quit(main_loop) function a differente
place but the stream function stay how to say in the function and i want to
go out of it, dunno if its clear sry.

I really can't fixed this issue and htat make all my programmme is freezed
cause of that.

Thanks for your help




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[Rom6]

I finaly find how to do, but this solution is particular to my code.

in fact the code just in the post before should be wrote like that :

    main_loop = g_main_loop_new (NULL, FALSE);
    data.loop = main_loop;
    data.pipeline = pipeline;

    gst_bus_add_signal_watch (bus);
    g_signal_connect (bus, "message", G_CALLBACK (cb_message), &data);
   
    pthread_exit(NULL);

    g_main_loop_run (main_loop);

    /* Free resources */
    g_main_loop_unref (main_loop);
    gst_object_unref (bus);
    gst_element_set_state (pipeline, GST_STATE_NULL);
    gst_object_unref (pipeline);

    free(buffer);
    close(csock);

By putting pthread_exit(NULL) at this place i go out of the streaming
function and go back to the infinty loop in another function wish have for
work to disptach the differents options of the program, and i still in the
stream main loop so i have the streaming in front of me + i can execute all
others options of my software.That's what i wanted to do.

Thanks, bye




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