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90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
#include <gst/gst.h>
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#include <unistd.h>
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/*
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* queue test code
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* starts a fakesrc num_buffers=50 ! { queue ! fakesink } thread
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* by first setting the output thread to play, then the whole pipeline
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*/
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static gint handoff_count = 0;
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/* handoff callback */
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static void
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handoff (GstElement *element, gpointer data)
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{
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++handoff_count;
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g_print ("handoff (%d) ", handoff_count);
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}
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static void
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construct_pipeline (GstElement *pipeline, GstElement *thread)
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{
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GstElement *src, *sink, *queue;
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src = gst_element_factory_make ("fakesrc", NULL);
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sink = gst_element_factory_make ("fakesink", "sink");
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queue = gst_element_factory_make ("queue", NULL);
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gst_bin_add_many (GST_BIN (thread), queue, sink, NULL);
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gst_bin_add_many (GST_BIN (pipeline), src, thread, NULL);
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gst_element_link_many (src, queue, sink, NULL);
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g_object_set (G_OBJECT (src), "num_buffers", 50, NULL);
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g_object_set (G_OBJECT (sink), "signal-handoffs", TRUE, NULL);
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g_signal_connect (G_OBJECT (sink), "handoff", G_CALLBACK (handoff), NULL);
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}
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void
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change_state (GstElement *element, GstBuffer *buf, GstElement *pipeline)
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{
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gst_element_set_state (pipeline, GST_STATE_NULL);
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}
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int
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main (gint argc, gchar *argv[])
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{
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GstElement *pipeline;
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GstElement *thread = NULL;
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gst_init (&argc, &argv);
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pipeline = gst_thread_new ("main_pipeline");
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thread = gst_element_factory_make ("thread", NULL);
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construct_pipeline (pipeline, thread);
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g_print ("First run: to show the pipeline works\n");
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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g_print ("SLEEPING 1 sec\n");
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sleep (1);
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g_print ("Pipeline done. Resetting to NULL.\n");
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gst_element_set_state (pipeline, GST_STATE_NULL);
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if (handoff_count == 0)
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{
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g_print ("ERROR: no buffers have passed\n");
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return -1;
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}
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handoff_count = 0;
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g_print ("Second run: setting consumer thread to playing, then complete pipeline\n");
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gst_element_set_state (thread, GST_STATE_PLAYING);
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g_print ("SLEEPING 1 sec\n");
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sleep (1);
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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g_print ("SLEEPING 2 sec\n");
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sleep (2);
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if (handoff_count == 0)
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{
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g_print ("ERROR: no buffers have passed\n");
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return -1;
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}
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return 0;
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}
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