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errorignore: Added convert-error signal

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The convert-error signal is emitted whenever we get a GstFlowReturn
other than GST_FLOW_OK. The handler can then decide what to convert that
into - for instance, return the same GstFlowReturn to not convert it.
The default handler will act according to the ignore-error,
ignore-notlinked, ignore-notnegotiated and convert-to properties. If a
handler is connected, these properties are ignored.
This commit is contained in:
Vivia Nikolaidou 2019-09-24 11:25:00 +03:00
parent 67e4684932
commit f7626c1f2a
1 changed files with 84 additions and 8 deletions
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92
gst/debugutils/gsterrorignore.c
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@ -52,6 +52,12 @@ enum
PROP_CONVERT_TO
};
enum
{
SIGNAL_CONVERT_ERROR,
LAST_SIGNAL
};
static void gst_error_ignore_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_error_ignore_get_property (GObject * object, guint prop_id,
@ -77,6 +83,11 @@ static gboolean gst_error_ignore_sink_event (GstPad * pad, GstObject * parent,
static GstStateChangeReturn gst_error_ignore_change_state (GstElement * element,
GstStateChange transition);
static GstFlowReturn
gst_error_ignore_convert_error (GstElement * element, GstFlowReturn value);
static guint signals[LAST_SIGNAL] = { 0 };
static void
gst_error_ignore_class_init (GstErrorIgnoreClass * klass)
{
@ -124,6 +135,28 @@ gst_error_ignore_class_init (GstErrorIgnoreClass * klass)
"Which GstFlowReturn value we should convert to when ignoring",
GST_TYPE_FLOW_RETURN,
GST_FLOW_NOT_LINKED, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstErrorIgnore::convert-error:
* @errorignore: the errorignore element that emitted the signal
* @value: the @GstFlowReturn encountered
*
* Emitted whenever we get a @GstFlowReturn other than GST_FLOW_OK. The
* handler can then decide what to convert that into - for instance, return
* the same @GstFlowReturn to not convert it. The default handler will act
* according to the ignore-error, ignore-notlinked, ignore-notnegotiated and
* convert-to properties. If a handler is connected, these properties are
* ignored. Only the first signal handler will ever be called.
*
* Returns: The @GstFlowReturn to convert into
*
* Since: 1.18
*/
signals[SIGNAL_CONVERT_ERROR] =
g_signal_new_class_handler ("convert-error", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_CALLBACK (gst_error_ignore_convert_error),
g_signal_accumulator_first_wins, NULL, NULL, GST_TYPE_FLOW_RETURN, 1,
GST_TYPE_FLOW_RETURN);
}
static void
@ -161,16 +194,24 @@ gst_error_ignore_set_property (GObject * object, guint prop_id,
switch (prop_id) {
case PROP_IGNORE_ERROR:
GST_OBJECT_LOCK (self);
self->ignore_error = g_value_get_boolean (value);
GST_OBJECT_UNLOCK (self);
break;
case PROP_IGNORE_NOTLINKED:
GST_OBJECT_LOCK (self);
self->ignore_notlinked = g_value_get_boolean (value);
GST_OBJECT_UNLOCK (self);
break;
case PROP_IGNORE_NOTNEGOTIATED:
GST_OBJECT_LOCK (self);
self->ignore_notnegotiated = g_value_get_boolean (value);
GST_OBJECT_UNLOCK (self);
break;
case PROP_CONVERT_TO:
GST_OBJECT_LOCK (self);
self->convert_to = g_value_get_enum (value);
GST_OBJECT_UNLOCK (self);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -186,16 +227,24 @@ gst_error_ignore_get_property (GObject * object, guint prop_id, GValue * value,
switch (prop_id) {
case PROP_IGNORE_ERROR:
GST_OBJECT_LOCK (self);
g_value_set_boolean (value, self->ignore_error);
GST_OBJECT_UNLOCK (self);
break;
case PROP_IGNORE_NOTLINKED:
GST_OBJECT_LOCK (self);
g_value_set_boolean (value, self->ignore_notlinked);
GST_OBJECT_UNLOCK (self);
break;
case PROP_IGNORE_NOTNEGOTIATED:
GST_OBJECT_LOCK (self);
g_value_set_boolean (value, self->ignore_notnegotiated);
GST_OBJECT_UNLOCK (self);
break;
case PROP_CONVERT_TO:
GST_OBJECT_LOCK (self);
g_value_set_enum (value, self->convert_to);
GST_OBJECT_UNLOCK (self);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -214,7 +263,9 @@ gst_error_ignore_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
case GST_EVENT_FLUSH_STOP:
GST_OBJECT_LOCK (self);
self->keep_pushing = TRUE;
GST_OBJECT_UNLOCK (self);
/* fall through */
default:
ret = gst_pad_event_default (pad, parent, event);
@ -224,29 +275,52 @@ gst_error_ignore_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
return ret;
}
static GstFlowReturn
gst_error_ignore_convert_error (GstElement * element, GstFlowReturn value)
{
GstFlowReturn ret = value;
GstErrorIgnore *self = GST_ERROR_IGNORE (element);
GST_OBJECT_LOCK (self);
if ((value == GST_FLOW_ERROR && self->ignore_error) ||
(value == GST_FLOW_NOT_LINKED && self->ignore_notlinked) ||
(value == GST_FLOW_NOT_NEGOTIATED && self->ignore_notnegotiated)) {
ret = self->convert_to;
}
GST_OBJECT_UNLOCK (self);
return ret;
}
static GstFlowReturn
gst_error_ignore_sink_chain (GstPad * pad, GstObject * parent,
GstBuffer * inbuf)
{
GstErrorIgnore *self = GST_ERROR_IGNORE (parent);
GstFlowReturn ret = GST_FLOW_OK;
GstFlowReturn convert_to;
gboolean keep_pushing;
if (gst_pad_check_reconfigure (pad))
self->keep_pushing = TRUE;
GST_OBJECT_LOCK (self);
keep_pushing = self->keep_pushing || gst_pad_check_reconfigure (pad);
GST_OBJECT_UNLOCK (self);
if (self->keep_pushing) {
if (keep_pushing) {
ret = gst_pad_push (self->srcpad, inbuf);
GST_OBJECT_LOCK (self);
self->keep_pushing = (ret == GST_FLOW_OK);
GST_OBJECT_UNLOCK (self);
} else {
gst_buffer_unref (inbuf);
}
if ((ret == GST_FLOW_ERROR && self->ignore_error) ||
(ret == GST_FLOW_NOT_LINKED && self->ignore_notlinked) ||
(ret == GST_FLOW_NOT_NEGOTIATED && self->ignore_notnegotiated))
return self->convert_to;
else
if (ret == GST_FLOW_OK)
return ret;
g_signal_emit (self, signals[SIGNAL_CONVERT_ERROR], 0, ret, &convert_to);
GST_LOG_OBJECT (self, "Encountered flow error %s, converting to %s",
gst_flow_get_name (ret), gst_flow_get_name (convert_to));
return convert_to;
}
static GstStateChangeReturn
@ -261,7 +335,9 @@ gst_error_ignore_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_OBJECT_LOCK (self);
self->keep_pushing = TRUE;
GST_OBJECT_UNLOCK (self);
break;
default:
break;