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da46035638
The test builds a tree like graph having conversion and basetransform elements.
151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/* GStreamer
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* Copyright (C) 2010 Stefan Kost <ensonic@users.sf.net>
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*
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* capsnego.c: benchmark for caps negotiation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gst/gst.h>
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/* the code below recursively builds a pipeline, the GRAPH_DEPTH is the depth
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* of the tree, NUM_CHILDREN is the number of branches on each level
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*/
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#define GRAPH_DEPTH 4
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#define NUM_CHILDREN 3
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static gboolean
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create_node (GstBin * bin, GstElement * sink, GstElement ** adder,
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GstElement ** vol, GstElement ** ac)
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{
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*adder = gst_element_factory_make ("adder", NULL);
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if (!*adder) {
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GST_WARNING ("need adder from gst-plugins-base");
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return FALSE;
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}
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*vol = gst_element_factory_make ("volume", NULL);
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if (!*vol) {
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GST_WARNING ("need volume from gst-plugins-base");
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return FALSE;
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}
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*ac = gst_element_factory_make ("audioconvert", NULL);
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if (!*ac) {
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GST_WARNING ("need audioconvert from gst-plugins-base");
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return FALSE;
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}
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gst_bin_add_many (bin, *adder, *vol, *ac, NULL);
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if (!gst_element_link_many (*adder, *vol, *ac, sink, NULL)) {
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GST_WARNING ("can't link elements");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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create_nodes (GstBin * bin, GstElement * sink, gint depth)
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{
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GstElement *adder, *vol, *ac, *src;
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gint i;
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for (i = 0; i < NUM_CHILDREN; i++) {
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if (depth > 0) {
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if (!create_node (bin, sink, &adder, &vol, &ac)) {
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return FALSE;
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}
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if (!create_nodes (bin, adder, depth - 1)) {
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return FALSE;
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}
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} else {
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src = gst_element_factory_make ("audiotestsrc", NULL);
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if (!src) {
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GST_WARNING ("need audiotestsrc from gst-plugins-base");
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return FALSE;
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}
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gst_bin_add (bin, src);
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if (!gst_element_link (src, sink)) {
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GST_WARNING ("can't link elements");
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return FALSE;
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}
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}
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}
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return TRUE;
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}
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static void
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event_loop (GstElement * bin)
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{
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GstBus *bus;
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GstMessage *msg = NULL;
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gboolean running = TRUE;
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bus = gst_element_get_bus (bin);
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while (running) {
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msg = gst_bus_poll (bus, GST_MESSAGE_STATE_CHANGED, -1);
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if (GST_MESSAGE_SRC (msg) == (GstObject *) bin) {
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GstState old_state, new_state;
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gst_message_parse_state_changed (msg, &old_state, &new_state, NULL);
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if (old_state == GST_STATE_READY && new_state == GST_STATE_PAUSED) {
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running = FALSE;
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}
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}
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gst_message_unref (msg);
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}
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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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GstBin *bin;
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GstClockTime start, end;
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GstElement *sink;
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GstElement *adder, *vol, *ac;
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gst_init (&argc, &argv);
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bin = GST_BIN (gst_pipeline_new ("pipeline"));
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g_print ("building pipeline\n");
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sink = gst_element_factory_make ("fakesink", NULL);
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gst_bin_add (bin, sink);
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if (!create_node (bin, sink, &adder, &vol, &ac)) {
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goto Error;
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}
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if (!create_nodes (bin, adder, GRAPH_DEPTH)) {
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goto Error;
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}
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g_print ("built pipeline with %d elements\n", GST_BIN_NUMCHILDREN (bin));
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g_print ("starting pipeline\n");
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_READY);
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GST_DEBUG_BIN_TO_DOT_FILE (bin, GST_DEBUG_GRAPH_SHOW_MEDIA_TYPE, "capsnego");
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start = gst_util_get_timestamp ();
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PAUSED);
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event_loop (GST_ELEMENT (bin));
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end = gst_util_get_timestamp ();
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g_print ("%" GST_TIME_FORMAT " reached paused\n",
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GST_TIME_ARGS (end - start));
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Error:
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_NULL);
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gst_object_unref (bin);
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return 0;
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}
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