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gst-validate-scenario: add emit-signal

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emit-signal action allows to emit signals to elements in scenarios.
The implementation only accepts signals without arguments for now but
it can be extended to use parameters if needed in the future
This commit is contained in:
Thiago Santos 2014-07-22 11:42:48 -03:00
parent 1cdbba4327
commit 3cf3e7a438
2 changed files with 50 additions and 4 deletions
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4
validate/data/camerabin_signal.scenario Normal file
View file

@ -0,0 +1,4 @@
description, duration=20.0
emit-signal, target-element-name=camerabin0, signal-name=start-capture, playback_time=10.0
eos, playback_time=20.0

50
validate/gst/validate/gst-validate-scenario.c
View file

@ -853,6 +853,25 @@ _execute_dot_pipeline (GstValidateScenario * scenario,
return TRUE;
}
static GstElement *
_get_target_element (GstValidateScenario * scenario, GstValidateAction * action)
{
const gchar *name;
GstElement *target;
name = gst_structure_get_string (action->structure, "target-element-name");
if (strcmp (GST_OBJECT_NAME (scenario->pipeline), name) == 0) {
target = gst_object_ref (scenario->pipeline);
} else {
target = gst_bin_get_by_name (GST_BIN (scenario->pipeline), name);
}
if (target == NULL) {
GST_ERROR ("Target element with given name (%s) not found", name);
}
return target;
}
static gboolean
_object_set_property (GObject * object, const gchar * property,
const GValue * value)
@ -876,15 +895,12 @@ _execute_set_property (GstValidateScenario * scenario,
GstValidateAction * action)
{
GstElement *target;
const gchar *name;
const gchar *property;
const GValue *property_value;
gboolean ret;
name = gst_structure_get_string (action->structure, "target-element-name");
target = gst_bin_get_by_name (GST_BIN (scenario->pipeline), name);
target = _get_target_element (scenario, action);
if (target == NULL) {
GST_ERROR ("Target element with given name (%s) not found", name);
return FALSE;
}
@ -933,6 +949,27 @@ _execute_set_debug_threshold (GstValidateScenario * scenario,
return TRUE;
}
static gboolean
_execute_emit_signal (GstValidateScenario * scenario,
GstValidateAction * action)
{
GstElement *target;
const gchar *signal_name;
target = _get_target_element (scenario, action);
if (target == NULL) {
return FALSE;
}
signal_name = gst_structure_get_string (action->structure, "signal-name");
/* Right now we don't support arguments to signals as there weren't any use
* cases to cover yet but it should be possible to do so */
g_signal_emit_by_name (target, signal_name, NULL);
gst_object_unref (target);
return TRUE;
}
static void
gst_validate_scenario_update_segment_from_seek (GstValidateScenario * scenario,
@ -1775,6 +1812,8 @@ init_scenarios (void)
{ "target-element-name", "property-name", "property-value", NULL };
const gchar *set_debug_threshold_mandatory_fields[] =
{ "debug-threshold", NULL };
const gchar *emit_signal_mandatory_fields[] =
{ "target-element-name", "signal-name", NULL };
GST_DEBUG_CATEGORY_INIT (gst_validate_scenario_debug, "gstvalidatescenario",
GST_DEBUG_FG_YELLOW, "Gst validate scenarios");
@ -1821,4 +1860,7 @@ init_scenarios (void)
_execute_set_debug_threshold, set_debug_threshold_mandatory_fields,
"Sets the debug level to be used, same format as "
"setting the GST_DEBUG env variable", FALSE);
gst_validate_add_action_type ("emit-signal", _execute_emit_signal,
emit_signal_mandatory_fields,
"Allows to emit a signal to an element in the pipeline", FALSE);
}