mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
bd128c199c
Original commit message from CVS: Tee Fixes. added cothread_stop (not used) improved the pad event dispatcher. added an event_received signal on the pad. do less state changes in the autoplugger. small scheduler fix.
308 lines
7.8 KiB
C
308 lines
7.8 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wim.taymans@chello.be>
|
|
*
|
|
* gsttee.c: Tee element, one in N out
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "gsttee.h"
|
|
|
|
|
|
GstElementDetails gst_tee_details = {
|
|
"Tee pipe fitting",
|
|
"Tee",
|
|
"1-to-N pipe fitting",
|
|
VERSION,
|
|
"Erik Walthinsen <omega@cse.ogi.edu>\n"
|
|
"Wim Taymans <wim.taymans@chello.be>",
|
|
"(C) 1999, 2000",
|
|
};
|
|
|
|
/* Tee signals and args */
|
|
enum {
|
|
/* FILL ME */
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
enum {
|
|
ARG_0,
|
|
ARG_SILENT,
|
|
ARG_NUM_PADS,
|
|
/* FILL ME */
|
|
};
|
|
|
|
GST_PADTEMPLATE_FACTORY (tee_src_factory,
|
|
"src%d",
|
|
GST_PAD_SRC,
|
|
GST_PAD_REQUEST,
|
|
NULL /* no caps */
|
|
);
|
|
|
|
static void gst_tee_class_init (GstTeeClass *klass);
|
|
static void gst_tee_init (GstTee *tee);
|
|
|
|
static GstPad* gst_tee_request_new_pad (GstElement *element, GstPadTemplate *temp, const gchar *unused);
|
|
static gboolean gst_tee_event_handler (GstPad *pad, GstEvent *event);
|
|
|
|
static void gst_tee_set_property (GObject *object, guint prop_id,
|
|
const GValue *value, GParamSpec *pspec);
|
|
static void gst_tee_get_property (GObject *object, guint prop_id,
|
|
GValue *value, GParamSpec *pspec);
|
|
|
|
static void gst_tee_chain (GstPad *pad, GstBuffer *buf);
|
|
|
|
static GstPadNegotiateReturn gst_tee_handle_negotiate_sink (GstPad *pad, GstCaps **caps, gpointer *data);
|
|
|
|
static GstElementClass *parent_class = NULL;
|
|
/*static guint gst_tee_signals[LAST_SIGNAL] = { 0 };*/
|
|
|
|
GType
|
|
gst_tee_get_type(void) {
|
|
static GType tee_type = 0;
|
|
|
|
if (!tee_type) {
|
|
static const GTypeInfo tee_info = {
|
|
sizeof(GstTeeClass), NULL,
|
|
NULL,
|
|
(GClassInitFunc)gst_tee_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof(GstTee),
|
|
0,
|
|
(GInstanceInitFunc)gst_tee_init,
|
|
};
|
|
tee_type = g_type_register_static (GST_TYPE_ELEMENT, "GstTee", &tee_info, 0);
|
|
}
|
|
return tee_type;
|
|
}
|
|
|
|
static void
|
|
gst_tee_class_init (GstTeeClass *klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
|
|
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_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_tee_set_property);
|
|
gobject_class->get_property = GST_DEBUG_FUNCPTR(gst_tee_get_property);
|
|
|
|
gstelement_class->request_new_pad = GST_DEBUG_FUNCPTR(gst_tee_request_new_pad);
|
|
}
|
|
|
|
static void
|
|
gst_tee_init (GstTee *tee)
|
|
{
|
|
tee->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
|
|
gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
|
|
gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
|
|
gst_pad_set_negotiate_function (tee->sinkpad, GST_DEBUG_FUNCPTR(gst_tee_handle_negotiate_sink));
|
|
|
|
tee->silent = FALSE;
|
|
}
|
|
|
|
static GstPad*
|
|
gst_tee_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *unused)
|
|
{
|
|
gchar *name;
|
|
GstPad *srcpad;
|
|
GstTee *tee;
|
|
|
|
g_return_val_if_fail (GST_IS_TEE (element), NULL);
|
|
|
|
if (templ->direction != GST_PAD_SRC) {
|
|
g_warning ("gsttee: request new pad that is not a SRC pad\n");
|
|
return NULL;
|
|
}
|
|
|
|
tee = GST_TEE (element);
|
|
|
|
name = g_strdup_printf ("src%d", GST_ELEMENT (tee)->numsrcpads);
|
|
|
|
srcpad = gst_pad_new_from_template (templ, name);
|
|
gst_element_add_pad (GST_ELEMENT (tee), srcpad);
|
|
gst_pad_set_event_function (srcpad, gst_tee_event_handler);
|
|
GST_PAD_ELEMENT_PRIVATE (srcpad) = NULL;
|
|
|
|
if (GST_PAD_CAPS (tee->sinkpad)) {
|
|
gst_pad_set_caps (srcpad, GST_PAD_CAPS (tee->sinkpad));
|
|
}
|
|
|
|
return srcpad;
|
|
}
|
|
|
|
static gboolean
|
|
gst_tee_event_handler (GstPad *pad, GstEvent *event)
|
|
{
|
|
GstTee *tee;
|
|
|
|
tee = GST_TEE (gst_pad_get_parent (pad));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_FLUSH:
|
|
GST_PAD_ELEMENT_PRIVATE (pad) = gst_event_new (GST_EVENT_TYPE (event));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_tee_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
|
|
{
|
|
GstTee *tee;
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
g_return_if_fail (GST_IS_TEE (object));
|
|
|
|
tee = GST_TEE (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_SILENT:
|
|
tee->silent = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_tee_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
|
{
|
|
GstTee *tee;
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
g_return_if_fail (GST_IS_TEE (object));
|
|
|
|
tee = GST_TEE (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_NUM_PADS:
|
|
g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
|
|
break;
|
|
case ARG_SILENT:
|
|
g_value_set_boolean (value, tee->silent);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_tee_chain:
|
|
* @pad: the pad to follow
|
|
* @buf: the buffer to pass
|
|
*
|
|
* Chain a buffer on a pad.
|
|
*/
|
|
static void
|
|
gst_tee_chain (GstPad *pad, GstBuffer *buf)
|
|
{
|
|
GstTee *tee;
|
|
GList *pads;
|
|
gint i;
|
|
|
|
g_return_if_fail (pad != NULL);
|
|
g_return_if_fail (GST_IS_PAD (pad));
|
|
g_return_if_fail (buf != NULL);
|
|
|
|
tee = GST_TEE (gst_pad_get_parent (pad));
|
|
/* gst_trace_add_entry (NULL, 0, buf, "tee buffer");*/
|
|
|
|
gst_buffer_ref_by_count (buf, GST_ELEMENT (tee)->numsrcpads);
|
|
|
|
pads = gst_element_get_pad_list (GST_ELEMENT (tee));
|
|
|
|
while (pads) {
|
|
GstPad *outpad = GST_PAD (pads->data);
|
|
pads = g_list_next (pads);
|
|
|
|
if (GST_PAD_DIRECTION (outpad) != GST_PAD_SRC)
|
|
continue;
|
|
|
|
if (GST_PAD_ELEMENT_PRIVATE (outpad)) {
|
|
GstEvent *event = GST_EVENT (GST_PAD_ELEMENT_PRIVATE (outpad));
|
|
|
|
GST_PAD_ELEMENT_PRIVATE (outpad) = NULL;
|
|
if (GST_PAD_CONNECTED (outpad))
|
|
gst_pad_push (outpad, GST_BUFFER (event));
|
|
else
|
|
gst_event_free (event);
|
|
}
|
|
|
|
if (!tee->silent) {
|
|
gst_element_info (GST_ELEMENT (tee), "chain ******* (%s:%s)t (%d bytes, %llu) \n",
|
|
GST_DEBUG_PAD_NAME (outpad), GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf));
|
|
}
|
|
|
|
if (GST_PAD_CONNECTED (outpad))
|
|
gst_pad_push (outpad, buf);
|
|
else
|
|
gst_buffer_unref (buf);
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gst_tee_factory_init (GstElementFactory *factory)
|
|
{
|
|
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (tee_src_factory));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstPadNegotiateReturn
|
|
gst_tee_handle_negotiate_sink (GstPad *pad, GstCaps **caps, gpointer* data)
|
|
{
|
|
GstCaps* tempcaps;
|
|
gint i;
|
|
GstTee* tee = GST_TEE (GST_OBJECT_PARENT (pad));
|
|
GList *pads;
|
|
|
|
if (*caps==NULL)
|
|
return GST_PAD_NEGOTIATE_FAIL;
|
|
|
|
/* go through all the src pads */
|
|
pads = gst_element_get_pad_list (GST_ELEMENT (tee));
|
|
|
|
while (pads) {
|
|
GstPad *outpad = GST_PAD (pads->data);
|
|
pads = g_list_next (pads);
|
|
|
|
if (GST_PAD_DIRECTION (outpad) != GST_PAD_SRC || !GST_PAD_CONNECTED (outpad))
|
|
continue;
|
|
|
|
if (!(gst_pad_set_caps (outpad, *caps))) {
|
|
return GST_PAD_NEGOTIATE_FAIL;
|
|
}
|
|
}
|
|
return GST_PAD_NEGOTIATE_AGREE;
|
|
}
|