| 1 | /* GStreamer |
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| 2 | * Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de> |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * This library is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU General Public |
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| 15 | * License along with this library; if not, write to the Free |
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| 16 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 17 | */ |
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| 18 | |
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| 19 | #include <gst/gst.h> |
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| 20 | |
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| 21 | GstElement *pipeline, *src, *sink; |
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| 22 | |
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| 23 | static void |
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| 24 | cb_handoff (GstElement * element, GstBuffer * buffer, GstPad * pad, |
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| 25 | gpointer unused) |
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| 26 | { |
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| 27 | if (GST_PAD_PEER (pad)) { |
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| 28 | g_print ("relinking...\n"); |
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| 29 | gst_pad_unlink (pad, GST_PAD_PEER (pad)); |
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| 30 | gst_bin_remove (GST_BIN (pipeline), OTHER_ELEMENT); |
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| 31 | OTHER_ELEMENT = |
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| 32 | gst_element_factory_make ("fake" G_STRINGIFY (OTHER_ELEMENT), NULL); |
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| 33 | g_assert (OTHER_ELEMENT); |
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| 34 | gst_bin_add (GST_BIN (pipeline), OTHER_ELEMENT); |
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| 35 | gst_element_sync_state_with_parent (OTHER_ELEMENT); |
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| 36 | gst_element_link (ELEMENT, OTHER_ELEMENT); |
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| 37 | } |
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| 38 | } |
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| 39 | |
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| 40 | gint |
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| 41 | main (gint argc, gchar ** argv) |
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| 42 | { |
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| 43 | guint i = 0; |
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| 44 | |
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| 45 | gst_init (&argc, &argv); |
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| 46 | |
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| 47 | g_print ("setting up...\n"); |
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| 48 | /* setup pipeline */ |
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| 49 | pipeline = gst_element_factory_make ("pipeline", NULL); |
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| 50 | g_assert (pipeline); |
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| 51 | src = gst_element_factory_make ("fakesrc", NULL); |
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| 52 | g_assert (src); |
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| 53 | sink = gst_element_factory_make ("fakesink", NULL); |
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| 54 | g_assert (sink); |
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| 55 | gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL); |
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| 56 | gst_element_link (src, sink); |
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| 57 | /* setup special stuff */ |
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| 58 | g_object_set (ELEMENT, "signal-handoffs", TRUE, NULL); |
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| 59 | g_signal_connect (ELEMENT, "handoff", (GCallback) cb_handoff, NULL); |
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| 60 | |
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| 61 | /* run pipeline */ |
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| 62 | g_print ("running...\n"); |
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| 63 | if (gst_element_set_state (pipeline, GST_STATE_PLAYING) != GST_STATE_SUCCESS) |
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| 64 | g_assert_not_reached (); |
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| 65 | while (i++ < 10 && gst_bin_iterate (GST_BIN (pipeline))); |
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| 66 | |
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| 67 | g_print ("cleaning up...\n"); |
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| 68 | gst_object_unref (GST_OBJECT (pipeline)); |
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| 69 | pipeline = NULL; |
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| 70 | |
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| 71 | g_print ("done.\n"); |
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| 72 | return 0; |
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| 73 | } |
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