* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
- * gstaggregator.c: Aggregator element, one in N out
+ * gstaggregator.c: Aggregator element, N in 1 out
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* Boston, MA 02111-1307, USA.
*/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#include "gstaggregator.h"
+GST_DEBUG_CATEGORY_STATIC (gst_aggregator_debug);
+#define GST_CAT_DEFAULT gst_aggregator_debug
-GstElementDetails gst_aggregator_details = {
- "Aggregator pipe fitting",
- "Aggregator",
- "N-to-1 pipe fitting",
- VERSION,
- "Wim Taymans <wim.taymans@chello.be>",
- "(C) 2001",
-};
+GstElementDetails gst_aggregator_details =
+GST_ELEMENT_DETAILS ("Aggregator pipe fitting",
+ "Generic",
+ "N-to-1 pipe fitting",
+ "Wim Taymans <wim.taymans@chello.be>");
/* Aggregator signals and args */
-enum {
+enum
+{
/* FILL ME */
LAST_SIGNAL
};
-enum {
+enum
+{
ARG_0,
ARG_NUM_PADS,
ARG_SILENT,
+ ARG_SCHED,
+ ARG_LAST_MESSAGE,
/* FILL ME */
};
-GST_PADTEMPLATE_FACTORY (aggregator_src_factory,
- "sink%d",
- GST_PAD_SINK,
- GST_PAD_REQUEST,
- NULL /* no caps */
-);
+GstStaticPadTemplate aggregator_src_template =
+GST_STATIC_PAD_TEMPLATE ("sink%d",
+ GST_PAD_SINK,
+ GST_PAD_REQUEST,
+ GST_STATIC_CAPS_ANY);
+
+#define GST_TYPE_AGGREGATOR_SCHED (gst_aggregator_sched_get_type())
+static GType
+gst_aggregator_sched_get_type (void)
+{
+ static GType aggregator_sched_type = 0;
+ static GEnumValue aggregator_sched[] = {
+ {AGGREGATOR_LOOP, "1", "Loop Based"},
+ {AGGREGATOR_LOOP_SELECT, "3", "Loop Based Select"},
+ {AGGREGATOR_CHAIN, "4", "Chain Based"},
+ {0, NULL, NULL},
+ };
+
+ if (!aggregator_sched_type) {
+ aggregator_sched_type =
+ g_enum_register_static ("GstAggregatorSched", aggregator_sched);
+ }
+ return aggregator_sched_type;
+}
-static void gst_aggregator_class_init (GstAggregatorClass *klass);
-static void gst_aggregator_init (GstAggregator *aggregator);
+#define AGGREGATOR_IS_LOOP_BASED(ag) ((ag)->sched != AGGREGATOR_CHAIN)
-static GstPad* gst_aggregator_request_new_pad (GstElement *element, GstPadTemplate *temp);
+static GstPad *gst_aggregator_request_new_pad (GstElement * element,
+ GstPadTemplate * temp, const gchar * unused);
+static void gst_aggregator_update_functions (GstAggregator * aggregator);
-static void gst_aggregator_set_property (GObject *object, guint prop_id,
- const GValue *value, GParamSpec *pspec);
-static void gst_aggregator_get_property (GObject *object, guint prop_id,
- GValue *value, GParamSpec *pspec);
+static void gst_aggregator_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_aggregator_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
-static void gst_aggregator_chain (GstPad *pad, GstBuffer *buf);
+static void gst_aggregator_chain (GstPad * pad, GstData * _data);
+static void gst_aggregator_loop (GstElement * element);
-static GstElementClass *parent_class = NULL;
-//static guint gst_aggregator_signals[LAST_SIGNAL] = { 0 };
+#define _do_init(bla) \
+ GST_DEBUG_CATEGORY_INIT (gst_aggregator_debug, "aggregator", 0, "aggregator element");
-GType
-gst_aggregator_get_type (void)
+GST_BOILERPLATE_FULL (GstAggregator, gst_aggregator, GstElement,
+ GST_TYPE_ELEMENT, _do_init);
+
+static void
+gst_aggregator_base_init (gpointer g_class)
{
- static GType aggregator_type = 0;
-
- if (!aggregator_type) {
- static const GTypeInfo aggregator_info = {
- sizeof(GstAggregatorClass),
- NULL,
- NULL,
- (GClassInitFunc)gst_aggregator_class_init,
- NULL,
- NULL,
- sizeof(GstAggregator),
- 0,
- (GInstanceInitFunc)gst_aggregator_init,
- };
- aggregator_type = g_type_register_static (GST_TYPE_ELEMENT, "GstAggregator", &aggregator_info, 0);
- }
- return aggregator_type;
-}
+ GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&aggregator_src_template));
+ gst_element_class_set_details (gstelement_class, &gst_aggregator_details);
+}
static void
-gst_aggregator_class_init (GstAggregatorClass *klass)
+gst_aggregator_class_init (GstAggregatorClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
- gobject_class = (GObjectClass*) klass;
- gstelement_class = (GstElementClass*) klass;
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
- parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NUM_PADS,
- g_param_spec_int ("num_pads", "num_pads", "num_pads",
- 0, G_MAXINT, 0, G_PARAM_READABLE));
+ g_param_spec_int ("num_pads", "Num pads", "The number of source pads",
+ 0, G_MAXINT, 0, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SILENT,
- g_param_spec_boolean ("silent", "silent", "silent",
- FALSE, G_PARAM_READWRITE));
-
- gobject_class->set_property = GST_DEBUG_FUNCPTR(gst_aggregator_set_property);
- gobject_class->get_property = GST_DEBUG_FUNCPTR(gst_aggregator_get_property);
-
- gstelement_class->request_new_pad = GST_DEBUG_FUNCPTR(gst_aggregator_request_new_pad);
+ g_param_spec_boolean ("silent", "Silent", "Don't produce messages",
+ FALSE, G_PARAM_READWRITE));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SCHED,
+ g_param_spec_enum ("sched", "Scheduling",
+ "The type of scheduling this element should use",
+ GST_TYPE_AGGREGATOR_SCHED, AGGREGATOR_CHAIN, G_PARAM_READWRITE));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LAST_MESSAGE,
+ g_param_spec_string ("last_message", "Last message",
+ "The current state of the element", NULL, G_PARAM_READABLE));
+
+ gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_aggregator_set_property);
+ gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_aggregator_get_property);
+
+ gstelement_class->request_new_pad =
+ GST_DEBUG_FUNCPTR (gst_aggregator_request_new_pad);
}
-static void
-gst_aggregator_init (GstAggregator *aggregator)
+static void
+gst_aggregator_init (GstAggregator * aggregator)
{
aggregator->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+ gst_pad_set_getcaps_function (aggregator->srcpad, gst_pad_proxy_getcaps);
gst_element_add_pad (GST_ELEMENT (aggregator), aggregator->srcpad);
aggregator->numsinkpads = 0;
aggregator->sinkpads = NULL;
aggregator->silent = FALSE;
+ aggregator->sched = AGGREGATOR_LOOP;
+
+ gst_aggregator_update_functions (aggregator);
}
-static GstPad*
-gst_aggregator_request_new_pad (GstElement *element, GstPadTemplate *templ)
+static GstPad *
+gst_aggregator_request_new_pad (GstElement * element, GstPadTemplate * templ,
+ const gchar * unused)
{
gchar *name;
GstPad *sinkpad;
g_return_val_if_fail (GST_IS_AGGREGATOR (element), NULL);
if (templ->direction != GST_PAD_SINK) {
- g_warning ("gstaggregator: request new pad that is not a SRC pad\n");
+ g_warning ("gstaggregator: request new pad that is not a sink pad\n");
return NULL;
}
aggregator = GST_AGGREGATOR (element);
- name = g_strdup_printf ("sink%d",aggregator->numsinkpads);
-
+ name = g_strdup_printf ("sink%d", aggregator->numsinkpads);
+
sinkpad = gst_pad_new_from_template (templ, name);
- gst_pad_set_chain_function (sinkpad, gst_aggregator_chain);
+ g_free (name);
+
+ if (!AGGREGATOR_IS_LOOP_BASED (aggregator)) {
+ gst_pad_set_chain_function (sinkpad, gst_aggregator_chain);
+ }
+ gst_pad_set_getcaps_function (sinkpad, gst_pad_proxy_getcaps);
gst_element_add_pad (GST_ELEMENT (aggregator), sinkpad);
-
- aggregator->sinkpads = g_slist_prepend (aggregator->sinkpads, sinkpad);
+
+ aggregator->sinkpads = g_list_prepend (aggregator->sinkpads, sinkpad);
aggregator->numsinkpads++;
-
+
return sinkpad;
}
static void
-gst_aggregator_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+gst_aggregator_update_functions (GstAggregator * aggregator)
+{
+ GList *pads;
+
+ if (AGGREGATOR_IS_LOOP_BASED (aggregator)) {
+ gst_element_set_loop_function (GST_ELEMENT (aggregator),
+ GST_DEBUG_FUNCPTR (gst_aggregator_loop));
+ } else {
+ gst_element_set_loop_function (GST_ELEMENT (aggregator), NULL);
+ }
+
+ pads = aggregator->sinkpads;
+ while (pads) {
+ GstPad *pad = GST_PAD (pads->data);
+
+ if (AGGREGATOR_IS_LOOP_BASED (aggregator)) {
+ gst_pad_set_get_function (pad, NULL);
+ } else {
+ gst_element_set_loop_function (GST_ELEMENT (aggregator), NULL);
+ }
+ pads = g_list_next (pads);
+ }
+}
+
+static void
+gst_aggregator_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
{
GstAggregator *aggregator;
case ARG_SILENT:
aggregator->silent = g_value_get_boolean (value);
break;
+ case ARG_SCHED:
+ aggregator->sched = g_value_get_enum (value);
+ gst_aggregator_update_functions (aggregator);
+ break;
default:
break;
}
}
static void
-gst_aggregator_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+gst_aggregator_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
GstAggregator *aggregator;
case ARG_SILENT:
g_value_set_boolean (value, aggregator->silent);
break;
+ case ARG_SCHED:
+ g_value_set_enum (value, aggregator->sched);
+ break;
+ case ARG_LAST_MESSAGE:
+ g_value_set_string (value, aggregator->last_message);
+ break;
default:
break;
}
}
+static void
+gst_aggregator_push (GstAggregator * aggregator, GstPad * pad, GstBuffer * buf,
+ guchar * debug)
+{
+ if (!aggregator->silent) {
+ g_free (aggregator->last_message);
+
+ aggregator->last_message =
+ g_strdup_printf ("%10.10s ******* (%s:%s)a (%d bytes, %"
+ G_GUINT64_FORMAT ")", debug, GST_DEBUG_PAD_NAME (pad),
+ GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf));
+
+ g_object_notify (G_OBJECT (aggregator), "last_message");
+ }
+
+ gst_pad_push (aggregator->srcpad, GST_DATA (buf));
+}
+
+static void
+gst_aggregator_loop (GstElement * element)
+{
+ GstAggregator *aggregator;
+ GstBuffer *buf;
+ guchar *debug;
+
+ aggregator = GST_AGGREGATOR (element);
+
+ if (aggregator->sched == AGGREGATOR_LOOP) {
+ GList *pads = aggregator->sinkpads;
+
+ /* we'll loop over all pads and try to pull from all
+ * active ones */
+ while (pads) {
+ GstPad *pad = GST_PAD (pads->data);
+
+ pads = g_list_next (pads);
+
+ /* we need to check is the pad is usable. IS_USABLE will check
+ * if the pad is linked, if it is enabled (the element is
+ * playing and the app didn't gst_pad_set_enabled (pad, FALSE))
+ * and that the peer pad is also enabled.
+ */
+ if (GST_PAD_IS_USABLE (pad)) {
+ buf = GST_BUFFER (gst_pad_pull (pad));
+ debug = "loop";
+
+ /* then push it forward */
+ gst_aggregator_push (aggregator, pad, buf, debug);
+ }
+ }
+ } else {
+ if (aggregator->sched == AGGREGATOR_LOOP_SELECT) {
+ GstPad *pad;
+
+ debug = "loop_select";
+
+ pad = gst_pad_selectv (aggregator->sinkpads);
+ buf = GST_BUFFER (gst_pad_pull (pad));
+
+ gst_aggregator_push (aggregator, pad, buf, debug);
+ } else {
+ g_assert_not_reached ();
+ }
+ }
+}
+
/**
* gst_aggregator_chain:
* @pad: the pad to follow
*
* Chain a buffer on a pad.
*/
-static void
-gst_aggregator_chain (GstPad *pad, GstBuffer *buf)
+static void
+gst_aggregator_chain (GstPad * pad, GstData * _data)
{
+ GstBuffer *buf = GST_BUFFER (_data);
GstAggregator *aggregator;
g_return_if_fail (pad != NULL);
g_return_if_fail (buf != NULL);
aggregator = GST_AGGREGATOR (gst_pad_get_parent (pad));
- gst_trace_add_entry (NULL, 0, buf, "aggregator buffer");
-
- if (!aggregator->silent)
- g_print("aggregator: chain ******* (%s:%s)a (%d bytes, %llu) \n",
- GST_DEBUG_PAD_NAME (pad), GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf));
+/* gst_trace_add_entry (NULL, 0, buf, "aggregator buffer");*/
- gst_pad_push (aggregator->srcpad, buf);
+ gst_aggregator_push (aggregator, pad, buf, "chain");
}
-
-gboolean
-gst_aggregator_factory_init (GstElementFactory *factory)
-{
- gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (aggregator_src_factory));
-
- return TRUE;
-}
-
projects / platform / upstream / gstreamer.git / blobdiff