[gst-devel] state change

[arnabsamanta]

Hi Sudarshan,
    No, i am not handling it.
    my idea was when the end of stream comes from the filesrc , the pipeline
is chsnged to NULL state through PAUSED and READY state. So i thought i need
not handle that. Can you tell me how can i handle it ?

Regards,
    ~Arnab
  -----Original Message-----
  From: sudarshan bisht [mailto:bisht.sudarshan at gmail.com]
  Sent: Friday, November 14, 2008 12:02 PM
  To: arnabsamanta at tataelxsi.co.in; Discussion of the development of
GStreamer
  Subject: Re: [gst-devel] state change


  Hi ,
               Are you handling EOS  event properly in your plugin ?


  On Fri, Nov 14, 2008 at 10:49 AM, arnabsamanta
<arnabsamanta at tataelxsi.co.in> wrote:

    Hi Zhang ,

                Thanks for your reply
                Did you mean the following in the _class_init ( ) ?
                If so then yes, i have done that .

           static void gst_queue3_class_init (Gstqueue3Class * klass)
            {

                    GstElementClass *gstelement_class;
                    gstelement_class = (GstElementClass *) klass;


                    gstelement_class->change_state = GST_DEBUG_FUNCPTR
(gst_queue3_change_state);
            }

        Regards,
                ~Arnab



      -----Original Message-----
      From: Eric Zhang [mailto:nicolas.m.zhang at gmail.com]
      Sent: Friday, November 14, 2008 7:43 AM
      To: arnabsamanta at tataelxsi.co.in; Discussion of the development of
GStreamer
      Subject: Re: [gst-devel] state change


      Hi, gstreamer-devel:

          Did you override the `change_state' function pointer in your
element's `_class_init' function?

      Eric Zhang


      2008/11/13 arnabsamanta <arnabsamanta at tataelxsi.co.in>

         Hi All,
               during state change of my plug in i am calling a function
QUEUE3_De_Init()
        but its not getting called .
               QUEUE3_De_Init() de-initializes all the initialized variables
in the code.
               the implementation is as such

                static GstStateChangeReturn gst_queue3_change_state
(GstElement * element,
        GstStateChange transition)
               {
               Gstqueue3 *queue3;
               abuffer = GST_QUEUE3 (element);

               GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;

               switch (transition) {
                       case GST_STATE_CHANGE_NULL_TO_READY:
                               break;
                       case GST_STATE_CHANGE_READY_TO_PAUSED:
                               break;
                       case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
                               break;
                       default:
                               break;
               }

               ret = GST_ELEMENT_CLASS (parent_class)->change_state
(element,
        transition);

               switch (transition) {
                       case GST_STATE_CHANGE_PLAYING_TO_PAUSED:

                               break;
                       case GST_STATE_CHANGE_PAUSED_TO_READY:
                               break;
                       case GST_STATE_CHANGE_READY_TO_NULL:
                               QUEUE3_De_Init();
                               break;
                       default:
                               break;
               }


               So,
               can please somebody tell me how and where I can call the
function when am
        changing the state of the pipeline ?

         Regards,
               Arnab


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  --
  Regards,

  Sudarshan Bisht

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