Commit b508c044 authored by Tim-Philipp Müller's avatar Tim-Philipp Müller Committed by Tim-Philipp Müller

tests/icles/: Small oss4 test that probes for available devices and retrieves...

tests/icles/: Small oss4 test that probes for available devices and retrieves their caps and mixer tracks and all tha...

Original commit message from CVS:
* tests/icles/.cvsignore:
* tests/icles/
* tests/icles/test-oss4.c: (opt_show_mixer_messages), (WAIT_TIME),
(show_mixer_messages), (probe_mixer_tracks), (probe_pad),
(probe_details), (probe_element), (main):
Small oss4 test that probes for available devices and retrieves
their caps and mixer tracks and all that. Also allows testing of
mixer change messages on the bus.
parent 385cd9a8
/* GStreamer OSS4 audio tests
* Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
* 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
* 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.
#include <config.h>
#include <string.h>
#include <gst/gst.h>
#include <gst/interfaces/propertyprobe.h>
#include <gst/interfaces/mixer.h>
static gboolean opt_show_mixer_messages = FALSE;
#define WAIT_TIME 60.0 /* in seconds */
static void
show_mixer_messages (GstElement * element)
GstMessage *msg;
GstBus *bus;
GTimer *t;
t = g_timer_new ();
bus = gst_bus_new ();
gst_element_set_bus (element, bus);
g_print ("\nShowing mixer messages for %u seconds ...\n", (guint) WAIT_TIME);
while (g_timer_elapsed (t, NULL) < WAIT_TIME) {
gdouble remaining = WAIT_TIME - g_timer_elapsed (t, NULL);
gint64 maxwait =
GST_SECOND * gst_util_gdouble_to_guint64 (MAX (0.0, remaining));
gchar *s = NULL;
msg = gst_bus_timed_pop (bus, maxwait);
if (!msg)
if (msg->structure)
s = gst_structure_to_string (msg->structure);
g_print ("%s message: %s\n", GST_MESSAGE_TYPE_NAME (msg), s);
gst_message_unref (msg);
g_free (s);
gst_element_set_bus (element, NULL);
gst_object_unref (bus);
g_timer_destroy (t);
static void
probe_mixer_tracks (GstElement * element)
const GList *tracks, *t;
GstMixer *mixer;
guint count;
if (!GST_IS_MIXER (element))
mixer = GST_MIXER (element);
tracks = gst_mixer_list_tracks (mixer);
count = g_list_length ((GList *) tracks);
g_print (" %d mixer tracks%c\n", count, (count == 0) ? '.' : ':');
for (t = tracks; t != NULL; t = t->next) {
GstMixerTrack *track;
gchar *label = NULL;
guint flags = 0;
track = GST_MIXER_TRACK (t->data);
g_object_get (track, "label", &label, "flags", &flags, NULL);
if (GST_IS_MIXER_OPTIONS (track)) {
GString *s;
GList *vals, *v;
vals = gst_mixer_options_get_values (GST_MIXER_OPTIONS (track));
s = g_string_new ("options: ");
for (v = vals; v != NULL; v = v->next) {
if (v->prev != NULL)
g_string_append (s, ", ");
g_string_append (s, (const gchar *) v->data);
g_print (" [%s] flags=0x%08x, %s\n", label, flags, s->str);
g_string_free (s, TRUE);
} else if (track->num_channels == 0) {
g_print (" [%s] flags=0x%08x, switch\n", label, flags);
} else if (track->num_channels > 0) {
g_print (" [%s] flags=0x%08x, slider (%d channels)\n", label, flags,
} else {
g_print (" [%s] flags=0x%08x, UNKNOWN TYPE\n", label, flags);
g_free (label);
/* for testing the mixer watch thread / auto-notifications */
if (strstr (GST_ELEMENT_NAME (element), "mixer") != NULL &&
opt_show_mixer_messages) {
show_mixer_messages (element);
static void
probe_pad (GstElement * element, const gchar * pad_name)
GstCaps *caps = NULL;
GstPad *pad;
guint i;
pad = gst_element_get_static_pad (element, pad_name);
if (pad == NULL)
caps = gst_pad_get_caps (pad);
g_return_if_fail (caps != NULL);
for (i = 0; i < gst_caps_get_size (caps); ++i) {
gchar *s;
s = gst_structure_to_string (gst_caps_get_structure (caps, i));
g_print (" %4s[%d]: %s\n", GST_PAD_NAME (pad), i, s);
g_free (s);
gst_caps_unref (caps);
gst_object_unref (pad);
static void
probe_details (GstElement * element)
GstStateChangeReturn ret;
ret = gst_element_set_state (element, GST_STATE_READY);
g_print ("Could not set element %s to READY.", GST_ELEMENT_NAME (element));
probe_pad (element, "sink");
probe_pad (element, "src");
probe_mixer_tracks (element);
gst_element_set_state (element, GST_STATE_NULL);
static void
probe_element (const gchar * name)
GstPropertyProbe *probe;
GValueArray *arr;
GstElement *element;
gchar *devname = NULL;
gint i;
element = gst_element_factory_make (name, name);
/* make sure we don't deadlock on GST_ELEMENT_ERROR or do other silly things
* if we try to query the "device-name" property when the device isn't open */
g_object_set (element, "device", "/dev/does/not/exist", NULL);
g_object_get (element, "device-name", &devname, NULL);
g_assert (devname == NULL);
/* and now for real */
probe = GST_PROPERTY_PROBE (element);
arr = gst_property_probe_probe_and_get_values_name (probe, "device");
for (i = 0; arr != NULL && i < arr->n_values; ++i) {
GValue *val;
gchar *dev_name = NULL;
g_print ("\n");
/* we assume the element supports getting the device-name in NULL state */
val = g_value_array_get_nth (arr, i);
g_object_set (element, "device", g_value_get_string (val), NULL);
g_object_get (element, "device-name", &dev_name, NULL);
g_print ("%-10s device[%d] = %s (%s)\n", GST_OBJECT_NAME (element),
i, g_value_get_string (val), dev_name);
if (strstr (dev_name, "/usb")) {
g_print ("\n\nWARNING: going to probe USB audio device. OSS4 USB support"
" is still\npretty shaky, so bad things may happen (e.g. kernel "
"lockup).\nPress Control-C NOW if you don't want to continue. "
"(waiting 5secs)\n\n");
g_usleep (5 * G_USEC_PER_SEC);
g_free (dev_name);
probe_details (element);
if (arr) {
g_value_array_free (arr);
gst_object_unref (element);
main (int argc, char **argv)
GOptionEntry options[] = {
{"show-mixer-messages", 'm', 0, G_OPTION_ARG_NONE, &opt_show_mixer_messages,
"For mixer elements, wait 60 seconds and show any mixer messages "
"(for debugging auto-notifications)", NULL},
GOptionContext *ctx;
GError *err = NULL;
if (!g_thread_supported ())
g_thread_init (NULL);
ctx = g_option_context_new ("");
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing: %s\n", err->message);
exit (1);
g_option_context_free (ctx);
probe_element ("oss4sink");
probe_element ("oss4src");
probe_element ("oss4mixer");
return 0;
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