<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=DE link=blue vlink=blue> <div class=Section1> Quit simple:<o:p></o:p> <o:p> </o:p> Generate named pipe.<o:p></o:p> Example Code from my program:<o:p></o:p> --------------<o:p></o:p> umask(0);<o:p></o:p> sprintf(np_name,"/home/bgraaf/wrk/bgl/bgl_np.%i", pid);<o:p></o:p> if (mkfifo (np_name, O_RDWR | 0666) < 0)<o:p></o:p> {<o:p></o:p> if ( errno == EEXIST) printf("Versuche vorhandene Named Pipe '%s' zu verwenden\n", np_name);<o:p></o:p> else <o:p></o:p> {<o:p></o:p> perror("mkfifo()");<o:p></o:p> syslog(LOG_ERR, "Eigene Named Pipe nicht erstellt --> Progammabbruch\n");<o:p></o:p> exit(EXIT_FAILURE);<o:p></o:p> }<o:p></o:p> }<o:p></o:p> <o:p> </o:p> <o:p> </o:p> fd1 = open ( np_name, O_RDONLY | O_NONBLOCK);<o:p></o:p> if ( fd1 == -1)<o:p></o:p> {<o:p></o:p> sprintf(tmp_str, "Konnte Named Pipe '%s' nicht Ã¶ffnen\n", np_name);<o:p></o:p> syslog(LOG_ERR, "%s\n",tmp_str);<o:p></o:p> perror(tmp_str);<o:p></o:p> exit(EXIT_FAILURE);<o:p></o:p> }<o:p></o:p> <o:p> </o:p> ----------------------<o:p></o:p> <o:p> </o:p> Include a timer f.e.: g_timeout_add (500, (GSourceFunc)np, NULL);<o:p></o:p> <o:p> </o:p> And add a function<o:p></o:p> Example:<o:p></o:p> int np(gpointer data) <o:p></o:p> {<o:p></o:p> char tmp_str[25];<o:p></o:p> <o:p> </o:p> <o:p> </o:p> if (read ( fd1, tmp_str, 20) != 0)<o:p></o:p> {<o:p></o:p> printf("Stoppe mp (got '%s')\n",tmp_str);<o:p></o:p> gst_element_send_event (dvb_pipe, gst_event_new_eos()); <o:p></o:p> }<o:p></o:p> <o:p> </o:p> return 1;<o:p></o:p> }<o:p></o:p> <o:p> </o:p> From another program you can write what ever into the named pipe and the pipeline will close.<o:p></o:p> Works fine in my app.<o:p></o:p> <o:p> </o:p> Regards<o:p></o:p> Bernhard<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> Von: gstreamer-devel [mailto:gstreamer-devel-bounces@lists.freedesktop.org] Im Auftrag von Anjo John Gesendet: Dienstag, 6. März 2018 12:34 An: <st1:PersonName w:st="on">Discussion of the development of and with GStreamer</st1:PersonName> Betreff: Re: element send EOS event not returning<o:p></o:p> </div> <o:p> </o:p> <div> Hi Bernhard,<o:p></o:p> <div> Would you please explain "I handle this with a named pipe". In my implementation , the /tmp/test is also a fifo. the filesrc element read from this fifo. But i am not able to send EOS even to pipeline or the filesrc element (call isn't returned ). I have tried ulinking and deleting this fifo, also tried with fdsrc instead of filesrc. All result in same behaviour. Would you tell me if i am doing anything wrong? the pipeline is stopping correctly when running in foreground. Only cause issues when run from other programs using system() command or making this as an application.<o:p></o:p> </div> </div> <div> <o:p> </o:p> <div> On Tue, Mar 6, 2018 at 4:51 PM, bernhard.graaf <<a href="mailto:bernhard.graaf@gmx.de" target="_blank">bernhard.graaf@gmx.de</a>> wrote:<o:p></o:p> <div> <div> I handle this with a named pipe<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> <o:p> </o:p> </div> <div> <o:p> </o:p> </div> <div id="m_-5738193980912035446composer_signature"> <div> Von meinem Samsung Galaxy Smartphone gesendet.<o:p></o:p> </div> </div> <div> <o:p> </o:p> </div> <div> <div> -------- Ursprüngliche Nachricht --------<o:p></o:p> </div> <div> Von: Anjo John <<a href="mailto:anjo.john@vvdntech.in" target="_blank">anjo.john@vvdntech.in</a>> <o:p></o:p> </div> <div> Datum: 06.03.18 08:13 (GMT+01:00) <o:p></o:p> </div> <div> An: <st1:PersonName w:st="on">Discussion of the development of and with GStreamer</st1:PersonName> <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a>> <o:p></o:p> </div> <div> Betreff: element send EOS event not returning <o:p></o:p> </div> <div> <o:p> </o:p> </div> </div> <div> <div> <div> Hi All,<o:p></o:p> <div> i have a Gstreamer application to read H264 data from a fifo and decode+display. Problem i am facing is whenever i run the pipeline using gst-launch i am able to stop the pipeline with ctrl+c interrupt. But if i run the same pipeline using system () command from other application and sending kill -2 to gst-launch , pipeline is not stopping. <o:p></o:p> </div> <div> this is my pipeline<o:p></o:p> </div> <div> gst-launch-1.0 -e filesrc location=/tmp/test ! h264parse ! imxvpudec ! imxg2dvideosink framebuffer=/dev/fb1 <o:p></o:p> <div> <o:p> </o:p> </div> <div> i have converted this to c application and added a signal handler for SIGINT. in signal handler i sent the event <o:p></o:p> </div> <div> gst_element_send_event(pipeline, gst_event_new_eos());<o:p></o:p> </div> <div> but the call never returns. Also tried to sent the event to filesrc element. It is also hanging. <o:p></o:p> </div> <div> is there any way to stop the pipeline gracefully, any help is appreciated<o:p></o:p> </div> <div> <o:p> </o:p> </div> -- <o:p></o:p> <div> *With Best Regards* *Anjo John* VVDN Technologies Pvt Ltd *Cell : *+91 9539931442 | Skype :anjojohn051 <o:p></o:p> </div> </div> </div> </div> </div> </div> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><o:p></o:p> </div> <o:p></o:p> <div> <o:p> </o:p> </div> -- <o:p></o:p> <div data-smartmail="gmail_signature"> *With Best Regards* *Anjo John* VVDN Technologies Pvt Ltd *Cell : *+91 9539931442 | Skype :anjojohn051 <o:p></o:p> </div> </div> </div> </body> </html>