gstreamer/gst/audioconvert/channelmixtest.c

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/* GStreamer
* Copyright (C) 2005 Benjamin Otte <otte@gnome.org>
*
* channelmixtest.c: simple test of channel mixing
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstchannelmix.h"
#include "plugin.h"
int
main (gint argc, gchar ** argv)
{
GstElement *bin, *src, *sink;
GstAudioConvert *c;
GstCaps *caps;
guint i, j, k;
struct
{
gchar *sinkcaps;
gchar *srccaps;
gfloat matrix[6][6]; /* use a predefined matrix here, makes stuff simpler */
} tests[] = {
/* stereo => mono */
{
"audio/x-raw-int, channels=2", "audio/x-raw-int, channels=1", { {
0.5,}, {
0.5,},}},
/* mono => stereo */
{
"audio/x-raw-int, channels=1", "audio/x-raw-int, channels=2", { {
1, 1,},}}
};
gst_init (&argc, &argv);
for (i = 0; i < G_N_ELEMENTS (tests); i++) {
g_print ("running test %u\n", i);
bin = gst_element_factory_make ("pipeline", NULL);
c = g_object_new (GST_TYPE_AUDIO_CONVERT, NULL);
/* avoid gst being braindead */
gst_object_set_name (GST_OBJECT (c), "shuddup");
src = gst_element_factory_make ("fakesrc", NULL);
sink = gst_element_factory_make ("fakesink", NULL);
gst_bin_add_many (GST_BIN (bin), src, c, sink, NULL);
caps = gst_caps_from_string (tests[i].sinkcaps);
g_assert (caps);
if (!gst_element_link_filtered (src, GST_ELEMENT (c), caps))
g_assert_not_reached ();
gst_caps_unref (caps);
caps = gst_caps_from_string (tests[i].srccaps);
g_assert (caps);
if (!gst_element_link_filtered (GST_ELEMENT (c), sink, caps))
g_assert_not_reached ();
gst_caps_unref (caps);
if (!gst_element_set_state (bin, GST_STATE_PLAYING))
g_assert_not_reached ();
g_assert (c->srccaps.channels <= 6);
g_assert (c->sinkcaps.channels <= 6);
for (j = 0; j < 6; j++) {
for (k = 0; k < 6; k++) {
if (j < c->sinkcaps.channels && k < c->srccaps.channels) {
if (tests[i].matrix[j][k] != c->matrix[j][k]) {
g_printerr ("matrix[j][k] should be %g but is %g\n",
tests[i].matrix[j][k], c->matrix[j][k]);
g_assert_not_reached ();
}
} else {
g_assert (tests[i].matrix[j][k] == 0);
}
}
}
gst_object_unref (bin);
}
return 0;
}