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75 lines
2 KiB
C
75 lines
2 KiB
C
#include <gst/gst.h>
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gint i = 0;
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GstElement *pipeline;
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GstPadChainFunction oss_chain;
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static GstElement *
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make_and_check_element (gchar *type, gchar *name)
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{
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GstElement *element = gst_element_factory_make (type, name);
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if (element == NULL) {
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g_warning ("Could not run test, because element type \"%s\" is not installed. Please retry when it is. Assuming it works for now...", type);
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exit (0);
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}
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return element;
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}
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static void
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create_pipeline (void)
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{
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GstElement *src;
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GstElement *sink;
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GstElement *id;
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pipeline = gst_pipeline_new ("pipeline");
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src = make_and_check_element ("sinesrc", "src");
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/**
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* You need a sink with a loop-based element in here, if you want to kill opt, too.
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* Osssink (chain-based) only breaks the basic scheduler.
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*/
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sink = make_and_check_element ("alsasink", "sink");
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gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
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gst_element_link (src, sink);
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/**
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* now make the bug appear
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* I believe it has something to do with 2 chains being created in the scheduler
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* but I haven't looked at it yet
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* If you comment out the next 4 lines, everything works fine.
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* And no, it's not because of identity, you may use any other element.
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*/
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gst_element_unlink (src, sink);
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id = make_and_check_element ("identity", "id");
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gst_bin_add (GST_BIN (pipeline), id);
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gst_element_link_many (src, id, sink, NULL);
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/* This pipeline will not be removed properly once we unref it */
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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}
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gint
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main (gint argc, gchar *argv[])
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{
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gst_init (&argc, &argv);
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create_pipeline();
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while (i < 300) {
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/**
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* only inc i when it works, so the program hangs when _iterate returns false,
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* which it does after the first pipeline isn't unref'd properly and the next
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* osssink refuses to work.
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*/
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if (gst_bin_iterate (GST_BIN (pipeline)))
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i++;
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if (i % 50 == 0) {
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gst_object_unref (GST_OBJECT (pipeline));
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create_pipeline ();
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}
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}
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return 0;
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}
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