[gst-devel] ximagesink

[nikhil almalkar]

> On Mon, May 4, 2009 at 11:59 PM, nikhil almalkar
> <nikhil.almalkar at gmail.com> wrote:
> > Hi all,
> > I have a pipeline with an encoder plugin and decodebin (with required
> > decoder plugins available). I use ximagesink for display.
> > It works fine in gst-launch.. but when I put it in a pipeline that looks
> > like this :
> > (source, encoder, decoder, ffmpegcolorspace, ximagsink)
> > and try to play this, it does not show the xvideo output. What may be the
> > issue ?
>
> Be more specific. What _exactly_ are the source, encoder, and decoder?
> Maybe you need a videoscale? What errors are you getting? What does
> your code look like?


source is a filesrc, encoder is an in-house encoder, decoder is a
decodebin... there are no errors, just the ximagesink does not output
a video, the program runs though... Inserting a scale did not make any
difference...

void Create_Pipeline()
{
        GMainLoop *loop;
        GstBus *bus;
	char *local;
	
        loop = g_main_loop_new (NULL, FALSE);
        /* create elements */
        pipeline = gst_pipeline_new ("player"); //(here)
        source = gst_element_factory_make ("filesrc", "source");
        if (!source) {
                        g_print ("Failed to create element of type ’source’\n");
                        return -1;
                     }
	if (encode_only)
	{
		calculate_datarate();
		g_object_set (G_OBJECT (source), "location", Inputfile, NULL);
		g_print("%u", value3);
		g_print("%s", Inputfile);
	}
	if (decode_only)
	{
		g_object_set (G_OBJECT (source), "location", Inputfile, NULL);	
	}



	encoder = gst_element_factory_make ("some encoder", "encoder");
	  if (!encoder) {
                        g_print ("Failed to create element of type
’encoder’\n");
                        return -1;
                     }
	
	


	decoder = gst_element_factory_make ("decodebin", "decoder");

	scale = gst_element_factory_make ("videoscale", "vidscale");

	ffmpegcolorcon = gst_element_factory_make ("ffmpegcolorspace",
"colorconversion");

        videosink = gst_element_factory_make ("ximagesink", "imagesink");

        if (GST_IS_X_OVERLAY (videosink))
            {
                gst_x_overlay_set_xwindow_id (GST_X_OVERLAY
(videosink), GPOINTER_TO_INT (window));
            }

       bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
        gst_bus_add_watch (bus, bus_call, loop);
        gst_object_unref (bus);

	if (encode_only && (DISPLAY))
		{	
			g_print("\nDisplaying\n");
                      gst_bin_add_many (GST_BIN (pipeline),source,
encoder, decoder,ffmpegcolorcon,  videosink, NULL);
			gst_element_link_many (source,encoder,decoder,ffmpegcolorcon,
videosink, NULL);
		}
	

	gst_element_set_state (pipeline, GST_STATE_PLAYING);
        g_print ("Running\n");
        g_main_loop_run (loop) ;

}

>
> > The source is a filesource, location provided, blocksize provided. The
> > encoder properties are set all right.
>
> You shouldn't need to specify the blocksize. If you DO need to do
> that, you're probably doing something else wrong.
>
> Mike
>


Specified or otherwise, the blocksize did not have any effect on the
video output.
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