284         ENTRY( "PlayBack", CGStreamerTestClass::PlayBack ),  

   596 

   597 /*** block b  from ../../../docs/manual/highlevel-components.xml ***/

   598 static gboolean

   599 my_bus_callback (GstBus     *bus,

   600          GstMessage *message,

   601          gpointer    data)

   602 {

   603       

   604   GMainLoop *loop = ( GMainLoop * )data;

   605 

   606   switch (GST_MESSAGE_TYPE (message)) {

   607     case GST_MESSAGE_ERROR: {

   608       GError *err;

   609       gchar *debug;

   610 

   611       gst_message_parse_error (message, &err, &debug);

   612       g_print ("Error: %s\n", err->message);

   613       g_error_free (err);

   614       g_free (debug);

   615 

   616       g_main_loop_quit (loop);

   617       break;

   618     }

   619     case GST_MESSAGE_EOS:

   620         

   621        /* end-of-stream */

   622       g_main_loop_quit (loop);

   623       break;

   624     default:

   625       /* unhandled message */

   626       break;

   627   }

   628 

   629   /* remove message from the queue */

   630   return TRUE;

   631 }

   632 

   633 /*** block c  from ../../../docs/manual/highlevel-components.xml ***/

   634 GstElement *pipeline;

   635 GstPad* devsoundsinkpad = NULL;

   636 

   637 static void

   638 cb_newpad (GstElement *decodebin,

   639        GstPad     *pad,

   640        gboolean    last,

   641        gpointer    data)

   642 {

   643     GstCaps *caps;

   644       GstStructure *str;

   645       GstPadLinkReturn linkret= GST_PAD_LINK_OK ;

   646 

   647       /* check media type */

   648       caps = gst_pad_get_caps (pad);

   649       str = gst_caps_get_structure (caps, 0);

   650       if (!g_strrstr (gst_structure_get_name (str), "audio")) {

   651         gst_caps_unref (caps);

   652         return;

   653       }

   654       gst_caps_unref (caps);

   655 

   656       /* link'n'play */

   657       linkret = gst_pad_link (pad, devsoundsinkpad);

   658 }

   659 

   660 

   661 gboolean  cb_autoplug( GstBin * *bin,

   662                         GstPad        *pad,

   663                         GstCaps       *caps,

   664                         gpointer       user_data)

   665 {

   666     

   667     GstCaps* sinkcaps = NULL;    

   668     gboolean supported = FALSE; 

   669     

   670     sinkcaps = gst_pad_get_caps( devsoundsinkpad );

   671         

   672     supported = gst_caps_is_subset( caps, sinkcaps );

   673     

   674     if( supported )

   675     {

   676       return FALSE;

   677     }

   678    

   679     return TRUE;

   680 

   681 }

   682 

   683 

   684 

   685 TInt CGStreamerTestClass::PlayBack( CStifItemParser& aItem )

   686 {

   687       GMainLoop *loop;

   688       GstElement *src, *dec, *sink;

   689       GstBus *bus;            

   690       

   691       FTRACE(FPrint(_L("CGStreamerTestClass::PlayBack")));     

   692       

   693       iLog->Log(_L(">>filesrc creation "));

   694 

   695       src = gst_element_factory_make ("filesrc", "source");

   696       

   697       iLog->Log(_L("<<filesrc creation "));

   698       

   699       TPtrC location;

   700       TFileName filename;

   701       

   702       char carray[1024];

   703       aItem.GetNextString(location);

   704       filename.Copy(location);

   705       wcstombs(carray, (const wchar_t *)filename.PtrZ(), 1024);

   706                       

   707       g_object_set (G_OBJECT (src), "location", carray, NULL);

   708       

   709      // gst_bin_add_many(GST_BIN (iObjects->iPipeline),src, NULL);

   710       

   711       iLog->Log(_L(">>decodebin2 creation "));

   712       dec = gst_element_factory_make ("decodebin2", "decoder");

   713       iLog->Log(_L("<<decodebin2 creation "));       

   714 

   715       /* create audio output */     

   716       sink = gst_element_factory_make ("devsoundsink", "sink");

   717             

   718       gst_bin_add_many (GST_BIN (iObjects->iPipeline), src, dec, sink, NULL);

   719       

   720       devsoundsinkpad = gst_element_get_pad( sink, "sink");          

   721       

   722       g_signal_connect (dec, "new-decoded-pad", G_CALLBACK (cb_newpad), NULL);

   723       g_signal_connect (dec, "autoplug-continue", G_CALLBACK (cb_autoplug), NULL);

   724       

   725       gst_element_link (src, dec);        

   726            

   727       iLog->Log(_L("<<Setting pipeline to Play"));

   728             

   729       return KErrNone;   

   730     

   731 }