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172 lines
4.9 KiB
C
172 lines
4.9 KiB
C
/* GStreamer
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* Copyright (C) 2009 Stefan Kost <ensonic@users.sf.net>
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*
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* controller.c: benchmark for interpolation control-source
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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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#include <gst/controller/gstcontroller.h>
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#include <gst/controller/gstinterpolationcontrolsource.h>
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/* a song in buzztard can easily reach 30000 here */
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#define NUM_CP 15000
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#define BLOCK_SIZE 64
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static void
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event_loop (GstElement * pipe)
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{
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GstBus *bus;
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GstMessage *message = NULL;
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bus = gst_element_get_bus (GST_ELEMENT (pipe));
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while (TRUE) {
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message = gst_bus_poll (bus, GST_MESSAGE_ANY, -1);
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g_assert (message != NULL);
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switch (message->type) {
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case GST_MESSAGE_EOS:
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gst_message_unref (message);
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return;
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case GST_MESSAGE_WARNING:
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case GST_MESSAGE_ERROR:{
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GError *gerror;
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gchar *debug;
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gst_message_parse_error (message, &gerror, &debug);
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gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
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gst_message_unref (message);
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g_error_free (gerror);
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g_free (debug);
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return;
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}
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default:
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gst_message_unref (message);
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break;
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}
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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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gint res = 1;
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gint i, j;
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GstElement *src, *sink;
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GstElement *bin;
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GstController *ctrl;
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GstInterpolationControlSource *csource;
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GValue freq = { 0, };
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GstClockTime bt, ct;
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GstClockTimeDiff elapsed;
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GstClockTime tick;
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gst_init (&argc, &argv);
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gst_controller_init (&argc, &argv);
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/* build pipeline */
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bin = gst_pipeline_new ("pipeline");
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src = gst_element_factory_make ("audiotestsrc", "gen_audio");
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if (!src) {
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GST_WARNING ("need audiotestsrc from gst-plugins-base");
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goto Error;
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}
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sink = gst_element_factory_make ("fakesink", "swallow_audio");
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gst_bin_add_many (GST_BIN (bin), src, sink, NULL);
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if (!gst_element_link (src, sink)) {
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GST_WARNING ("can't link elements");
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goto Error;
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}
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g_object_set (G_OBJECT (src), "wave", 7, /* sine table - we don't want to benchmark the fpu */
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"num-buffers", NUM_CP, "samplesperbuffer", BLOCK_SIZE, NULL);
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tick = BLOCK_SIZE * GST_SECOND / 44100;
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/* add a controller to the source */
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if (!(ctrl = gst_controller_new (G_OBJECT (src), "freq", NULL))) {
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GST_WARNING ("can't control source element");
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goto Error;
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}
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/* create and configure control source */
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csource = gst_interpolation_control_source_new ();
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gst_controller_set_control_source (ctrl, "freq",
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GST_CONTROL_SOURCE (csource));
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gst_interpolation_control_source_set_interpolation_mode (csource,
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GST_INTERPOLATE_LINEAR);
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g_value_init (&freq, G_TYPE_DOUBLE);
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/* set control values, we set them in a linear order as we would when loading
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* a stored project
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*/
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bt = gst_util_get_timestamp ();
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for (i = 0; i < NUM_CP; i++) {
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g_value_set_double (&freq, g_random_double_range (50.0, 3000.0));
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gst_interpolation_control_source_set (csource, i * tick, &freq);
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}
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ct = gst_util_get_timestamp ();
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elapsed = GST_CLOCK_DIFF (bt, ct);
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printf ("linear insert of control-points: %" GST_TIME_FORMAT "\n",
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GST_TIME_ARGS (elapsed));
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/* set extra control values, we set them in arbitrary order to simulate
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* the user editing a project from the ui
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*/
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bt = gst_util_get_timestamp ();
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for (i = 0; i < 100; i++) {
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j = g_random_int_range (0, NUM_CP - 1);
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g_value_set_double (&freq, g_random_double_range (50.0, 3000.0));
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gst_interpolation_control_source_set (csource, j * tick, &freq);
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}
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ct = gst_util_get_timestamp ();
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elapsed = GST_CLOCK_DIFF (bt, ct);
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printf ("random insert of control-points: %" GST_TIME_FORMAT "\n",
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GST_TIME_ARGS (elapsed));
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g_object_unref (csource);
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/* play, this test sequential reads */
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bt = gst_util_get_timestamp ();
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if (gst_element_set_state (bin, GST_STATE_PLAYING)) {
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/* wait for EOS */
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event_loop (bin);
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gst_element_set_state (bin, GST_STATE_NULL);
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}
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ct = gst_util_get_timestamp ();
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elapsed = GST_CLOCK_DIFF (bt, ct);
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printf ("linear read of control-points: %" GST_TIME_FORMAT "\n",
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GST_TIME_ARGS (elapsed));
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/* cleanup */
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g_object_unref (G_OBJECT (ctrl));
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gst_object_unref (G_OBJECT (bin));
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res = 0;
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Error:
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return res;
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}
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