mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 10:41:04 +00:00
89d827dac8
Original commit message from CVS: * gst/gstdebugutils.c: Squeeze ghost-pad links and remove <> from classname labels to save more horizontal space.
605 lines
19 KiB
C
605 lines
19 KiB
C
/* GStreamer
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* Copyright (C) 2007 Stefan Kost <ensonic@users.sf.net>
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*
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* gstdebugutils.c: debugging and analysis utillities
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* TODO:
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* edge [ constraint=false ];
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* this creates strange graphs ("minlen=0" is better)
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* try puting src/sink ghostpads for each bin into invisible clusters
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*/
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#include "gst_private.h"
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#include "gstdebugutils.h"
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#ifndef GST_DISABLE_GST_DEBUG
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "gstinfo.h"
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#include "gstbin.h"
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#include "gstobject.h"
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#include "gstghostpad.h"
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#include "gstpad.h"
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#include "gstutils.h"
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/*** PIPELINE GRAPHS **********************************************************/
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const gchar *priv_gst_dump_dot_dir; /* NULL *//* set from gst.c */
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extern GstClockTime _priv_gst_info_start_time;
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static gchar *
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debug_dump_make_object_name (GstObject * element)
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{
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return g_strcanon (g_strdup_printf ("%s_%p", GST_OBJECT_NAME (element),
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element), G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "_", '_');
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}
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static gchar *
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debug_dump_get_element_state (GstElement * element)
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{
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gchar *state_name = NULL;
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const gchar *state_icons = "~0-=>";
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GstState state = 0, pending = 0;
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gst_element_get_state (element, &state, &pending, 0);
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if (pending == GST_STATE_VOID_PENDING) {
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state_name = g_strdup_printf ("\\n[%c]", state_icons[state]);
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} else {
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state_name = g_strdup_printf ("\\n[%c]->[%c]", state_icons[state],
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state_icons[pending]);
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}
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return state_name;
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}
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static gchar *
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debug_dump_get_element_params (GstElement * element)
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{
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gchar *param_name = NULL;
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GParamSpec **properties, *property;
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GValue value = { 0, };
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guint i, number_of_properties;
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gchar *tmp, *value_str;
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/* get paramspecs and show non-default properties */
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properties =
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g_object_class_list_properties (G_OBJECT_CLASS (GST_ELEMENT_GET_CLASS
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(element)), &number_of_properties);
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if (properties) {
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for (i = 0; i < number_of_properties; i++) {
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property = properties[i];
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/* ski some properties */
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if (!(property->flags & G_PARAM_READABLE))
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continue;
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if (!strcmp (property->name, "name"))
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continue;
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g_value_init (&value, property->value_type);
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g_object_get_property (G_OBJECT (element), property->name, &value);
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if (!(g_param_value_defaults (property, &value))) {
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tmp = g_strdup_value_contents (&value);
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value_str = g_strescape (tmp, NULL);
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g_free (tmp);
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if (param_name) {
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tmp = param_name;
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param_name = g_strdup_printf ("%s\\n%s=%s",
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tmp, property->name, value_str);
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g_free (tmp);
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} else {
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param_name = g_strdup_printf ("\\n%s=%s", property->name, value_str);
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}
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g_free (value_str);
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}
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g_value_unset (&value);
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}
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g_free (properties);
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}
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return param_name;
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}
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static void
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debug_dump_element_pad (GstPad * pad, GstElement * element,
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GstDebugGraphDetails details, FILE * out, const gint indent)
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{
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GstElement *target_element;
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GstPad *target_pad, *tmp_pad;
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GstPadDirection dir;
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GstPadTemplate *pad_templ;
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GstPadPresence presence;
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gchar *pad_name, *element_name;
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gchar *target_pad_name, *target_element_name;
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gchar *color_name, *style_name;
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gchar *spc = NULL;
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spc = g_malloc (1 + indent * 2);
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memset (spc, 32, indent * 2);
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spc[indent * 2] = '\0';
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dir = gst_pad_get_direction (pad);
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pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
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element_name = debug_dump_make_object_name (GST_OBJECT (element));
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if (GST_IS_GHOST_PAD (pad)) {
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color_name =
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(dir == GST_PAD_SRC) ? "#ffdddd" : ((dir ==
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GST_PAD_SINK) ? "#ddddff" : "#ffffff");
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/* output target-pad so that it belongs to this element */
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if ((tmp_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (pad)))) {
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if ((target_pad = gst_pad_get_peer (tmp_pad))) {
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target_pad_name = debug_dump_make_object_name (GST_OBJECT (target_pad));
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if ((target_element = gst_pad_get_parent_element (target_pad))) {
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target_element_name =
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debug_dump_make_object_name (GST_OBJECT (target_element));
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} else {
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target_element_name = "";
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}
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style_name = "filled,solid";
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if ((pad_templ = gst_pad_get_pad_template (target_pad))) {
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presence = GST_PAD_TEMPLATE_PRESENCE (pad_templ);
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if (presence == GST_PAD_SOMETIMES) {
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style_name = "filled,dotted";
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} else if (presence == GST_PAD_REQUEST) {
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style_name = "filled,dashed";
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}
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}
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fprintf (out,
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"%s %s_%s [color=black, fillcolor=\"%s\", label=\"%s\", height=\"0.2\", style=\"%s\"];\n",
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spc, target_element_name, target_pad_name, color_name,
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GST_OBJECT_NAME (target_pad), style_name);
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g_free (target_pad_name);
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if (target_element) {
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g_free (target_element_name);
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gst_object_unref (target_element);
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}
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gst_object_unref (target_pad);
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}
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gst_object_unref (tmp_pad);
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}
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} else {
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color_name =
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(dir == GST_PAD_SRC) ? "#ffaaaa" : ((dir ==
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GST_PAD_SINK) ? "#aaaaff" : "#cccccc");
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}
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/* pads */
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style_name = "filled,solid";
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if ((pad_templ = gst_pad_get_pad_template (pad))) {
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presence = GST_PAD_TEMPLATE_PRESENCE (pad_templ);
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if (presence == GST_PAD_SOMETIMES) {
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style_name = "filled,dotted";
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} else if (presence == GST_PAD_REQUEST) {
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style_name = "filled,dashed";
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}
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}
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fprintf (out,
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"%s %s_%s [color=black, fillcolor=\"%s\", label=\"%s\", height=\"0.2\", style=\"%s\"];\n",
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spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
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style_name);
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g_free (pad_name);
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g_free (element_name);
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g_free (spc);
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}
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static void
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debug_dump_element_pad_link (GstPad * pad, GstElement * element,
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GstDebugGraphDetails details, FILE * out, const gint indent)
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{
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GstElement *peer_element, *target_element;
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GstPad *peer_pad, *target_pad, *tmp_pad;
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GstCaps *caps;
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GstStructure *structure;
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gboolean free_caps, free_media;
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gchar *media = NULL;
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gchar *pad_name, *element_name;
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gchar *peer_pad_name, *peer_element_name;
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gchar *target_pad_name, *target_element_name;
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gchar *spc = NULL;
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spc = g_malloc (1 + indent * 2);
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memset (spc, 32, indent * 2);
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spc[indent * 2] = '\0';
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if ((peer_pad = gst_pad_get_peer (pad))) {
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free_media = FALSE;
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if ((details & GST_DEBUG_GRAPH_SHOW_MEDIA_TYPE) ||
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(details & GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS)
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) {
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if ((caps = gst_pad_get_negotiated_caps (pad))) {
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free_caps = TRUE;
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} else {
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free_caps = FALSE;
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if (!(caps = (GstCaps *)
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gst_pad_get_pad_template_caps (pad))) {
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/* this should not happen */
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media = "?";
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}
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}
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if (caps) {
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if (details & GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS) {
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gchar *tmp = g_strdelimit (gst_caps_to_string (caps), ",",
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'\n');
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media = g_strescape (tmp, NULL);
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free_media = TRUE;
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g_free (tmp);
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} else {
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if (GST_CAPS_IS_SIMPLE (caps)) {
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structure = gst_caps_get_structure (caps, 0);
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media = (gchar *) gst_structure_get_name (structure);
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} else
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media = "*";
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}
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if (free_caps) {
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gst_caps_unref (caps);
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}
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}
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}
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pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
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if (element) {
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element_name = debug_dump_make_object_name (GST_OBJECT (element));
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} else {
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element_name = "";
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}
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peer_pad_name = debug_dump_make_object_name (GST_OBJECT (peer_pad));
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if ((peer_element = gst_pad_get_parent_element (peer_pad))) {
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peer_element_name =
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debug_dump_make_object_name (GST_OBJECT (peer_element));
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} else {
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peer_element_name = "";
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}
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if (GST_IS_GHOST_PAD (pad)) {
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if ((tmp_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (pad)))) {
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if ((target_pad = gst_pad_get_peer (tmp_pad))) {
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target_pad_name =
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debug_dump_make_object_name (GST_OBJECT (target_pad));
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if ((target_element = gst_pad_get_parent_element (target_pad))) {
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target_element_name =
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debug_dump_make_object_name (GST_OBJECT (target_element));
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} else {
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target_element_name = "";
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}
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/* src ghostpad relationship */
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fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
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target_element_name, target_pad_name, element_name, pad_name);
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g_free (target_pad_name);
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if (target_element) {
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g_free (target_element_name);
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gst_object_unref (target_element);
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}
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gst_object_unref (target_pad);
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}
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gst_object_unref (tmp_pad);
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}
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}
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if (GST_IS_GHOST_PAD (peer_pad)) {
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if ((tmp_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (peer_pad)))) {
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if ((target_pad = gst_pad_get_peer (tmp_pad))) {
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target_pad_name =
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debug_dump_make_object_name (GST_OBJECT (target_pad));
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if ((target_element = gst_pad_get_parent_element (target_pad))) {
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target_element_name =
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debug_dump_make_object_name (GST_OBJECT (target_element));
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} else {
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target_element_name = "";
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}
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/* sink ghostpad relationship */
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fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
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peer_element_name, peer_pad_name,
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target_element_name, target_pad_name);
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/* FIXME: we are missing links from the proxy pad
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* theoretically we need to:
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* pad=gst_object_ref(target_pad);
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* goto line 280: if ((peer_pad = gst_pad_get_peer (pad)))
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* as this would e ugly we need to refactor ...
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*/
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debug_dump_element_pad_link (target_pad, target_element, details, out,
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indent);
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g_free (target_pad_name);
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if (target_element) {
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g_free (target_element_name);
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gst_object_unref (target_element);
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}
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gst_object_unref (target_pad);
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}
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gst_object_unref (tmp_pad);
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}
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}
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/* pad link */
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if (media) {
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fprintf (out, "%s%s_%s -> %s_%s [label=\"%s\"]\n", spc,
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element_name, pad_name, peer_element_name, peer_pad_name, media);
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if (free_media) {
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g_free (media);
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}
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} else {
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fprintf (out, "%s%s_%s -> %s_%s\n", spc,
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element_name, pad_name, peer_element_name, peer_pad_name);
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}
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g_free (pad_name);
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if (element) {
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g_free (element_name);
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}
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g_free (peer_pad_name);
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if (peer_element) {
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g_free (peer_element_name);
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gst_object_unref (peer_element);
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}
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gst_object_unref (peer_pad);
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}
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g_free (spc);
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}
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/*
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* debug_dump_element:
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* @bin: the bin that should be analyzed
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* @out: file to write to
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* @indent: level of graph indentation
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*
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* Helper for _gst_debug_bin_to_dot_file() to recursively dump a pipeline.
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*/
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static void
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debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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const gint indent)
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{
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GstIterator *element_iter, *pad_iter;
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gboolean elements_done, pads_done;
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GstElement *element;
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GstPad *pad;
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GstPadDirection dir;
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guint src_pads, sink_pads;
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gchar *element_name;
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gchar *state_name = NULL;
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gchar *param_name = NULL;
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gchar *spc = NULL;
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spc = g_malloc (1 + indent * 2);
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memset (spc, 32, indent * 2);
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spc[indent * 2] = '\0';
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element_iter = gst_bin_iterate_elements (bin);
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elements_done = FALSE;
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while (!elements_done) {
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switch (gst_iterator_next (element_iter, (gpointer) & element)) {
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case GST_ITERATOR_OK:
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element_name = debug_dump_make_object_name (GST_OBJECT (element));
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if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
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state_name = debug_dump_get_element_state (GST_ELEMENT (element));
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}
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if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
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param_name = debug_dump_get_element_params (GST_ELEMENT (element));
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}
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/* elements */
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fprintf (out, "%ssubgraph cluster_%s {\n", spc, element_name);
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fprintf (out, "%s fontname=\"Bitstream Vera Sans\";\n", spc);
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fprintf (out, "%s fontsize=\"8\";\n", spc);
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fprintf (out, "%s style=filled;\n", spc);
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fprintf (out, "%s color=black;\n\n", spc);
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fprintf (out, "%s label=\"%s\\n%s%s%s\";\n", spc,
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G_OBJECT_TYPE_NAME (element), GST_OBJECT_NAME (element),
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(state_name ? state_name : ""), (param_name ? param_name : "")
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);
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if (state_name) {
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g_free (state_name);
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state_name = NULL;
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}
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if (param_name) {
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g_free (param_name);
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param_name = NULL;
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}
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g_free (element_name);
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src_pads = sink_pads = 0;
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if ((pad_iter = gst_element_iterate_pads (element))) {
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pads_done = FALSE;
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while (!pads_done) {
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switch (gst_iterator_next (pad_iter, (gpointer) & pad)) {
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case GST_ITERATOR_OK:
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debug_dump_element_pad (pad, element, details, out, indent);
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dir = gst_pad_get_direction (pad);
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if (dir == GST_PAD_SRC)
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src_pads++;
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else if (dir == GST_PAD_SINK)
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sink_pads++;
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gst_object_unref (pad);
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break;
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case GST_ITERATOR_RESYNC:
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gst_iterator_resync (pad_iter);
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break;
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case GST_ITERATOR_ERROR:
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case GST_ITERATOR_DONE:
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pads_done = TRUE;
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break;
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}
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}
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gst_iterator_free (pad_iter);
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}
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if (GST_IS_BIN (element)) {
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fprintf (out, "%s fillcolor=\"#ffffff\";\n", spc);
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/* recurse */
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debug_dump_element (GST_BIN (element), details, out, indent + 1);
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} else {
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if (src_pads && !sink_pads)
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fprintf (out, "%s fillcolor=\"#ffaaaa\";\n", spc);
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else if (!src_pads && sink_pads)
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fprintf (out, "%s fillcolor=\"#aaaaff\";\n", spc);
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else if (src_pads && sink_pads)
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fprintf (out, "%s fillcolor=\"#aaffaa\";\n", spc);
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else
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fprintf (out, "%s fillcolor=\"#ffffff\";\n", spc);
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}
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fprintf (out, "%s}\n\n", spc);
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if ((pad_iter = gst_element_iterate_pads (element))) {
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pads_done = FALSE;
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while (!pads_done) {
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switch (gst_iterator_next (pad_iter, (gpointer) & pad)) {
|
|
case GST_ITERATOR_OK:
|
|
if (gst_pad_is_linked (pad)
|
|
&& gst_pad_get_direction (pad) == GST_PAD_SRC) {
|
|
debug_dump_element_pad_link (pad, element, details, out,
|
|
indent);
|
|
}
|
|
gst_object_unref (pad);
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
gst_iterator_resync (pad_iter);
|
|
break;
|
|
case GST_ITERATOR_ERROR:
|
|
case GST_ITERATOR_DONE:
|
|
pads_done = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
gst_iterator_free (pad_iter);
|
|
}
|
|
gst_object_unref (element);
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
gst_iterator_resync (element_iter);
|
|
break;
|
|
case GST_ITERATOR_ERROR:
|
|
case GST_ITERATOR_DONE:
|
|
elements_done = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
gst_iterator_free (element_iter);
|
|
g_free (spc);
|
|
}
|
|
|
|
/*
|
|
* _gst_debug_bin_to_dot_file:
|
|
* @bin: the top-level pipeline that should be analyzed
|
|
* @file_name: output base filename (e.g. "myplayer")
|
|
*
|
|
* To aid debugging applications one can use this method to write out the whole
|
|
* network of gstreamer elements that form the pipeline into an dot file.
|
|
* This file can be processed with graphviz to get an image.
|
|
* <informalexample><programlisting>
|
|
* dot -Tpng -oimage.png graph_lowlevel.dot
|
|
* </programlisting></informalexample>
|
|
*/
|
|
void
|
|
_gst_debug_bin_to_dot_file (GstBin * bin, GstDebugGraphDetails details,
|
|
const gchar * file_name)
|
|
{
|
|
gchar *full_file_name = NULL;
|
|
FILE *out;
|
|
|
|
g_return_if_fail (GST_IS_BIN (bin));
|
|
|
|
if (G_LIKELY (priv_gst_dump_dot_dir == NULL))
|
|
return;
|
|
|
|
if (!file_name) {
|
|
file_name = g_get_application_name ();
|
|
if (!file_name)
|
|
file_name = "unnamed";
|
|
}
|
|
|
|
full_file_name = g_strdup_printf ("%s" G_DIR_SEPARATOR_S "%s.dot",
|
|
priv_gst_dump_dot_dir, file_name);
|
|
|
|
if ((out = fopen (full_file_name, "wb"))) {
|
|
gchar *state_name = NULL;
|
|
gchar *param_name = NULL;
|
|
|
|
if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
|
|
state_name = debug_dump_get_element_state (GST_ELEMENT (bin));
|
|
}
|
|
if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
|
|
param_name = debug_dump_get_element_params (GST_ELEMENT (bin));
|
|
}
|
|
|
|
/* write header */
|
|
fprintf (out,
|
|
"digraph pipeline {\n"
|
|
" rankdir=LR;\n"
|
|
" fontname=\"Bitstream Vera Sans\";\n"
|
|
" fontsize=\"8\";\n"
|
|
" labelloc=t;\n"
|
|
" nodesep=.1;\n"
|
|
" ranksep=.2;\n"
|
|
" label=\"<%s>\\n%s%s%s\";\n"
|
|
" node [style=filled, shape=box, fontsize=\"7\", fontname=\"Bitstream Vera Sans\", margin=\"0.0,0.0\"];\n"
|
|
" edge [labelfontsize=\"7\", fontsize=\"7\", labelfontname=\"Bitstream Vera Sans\", fontname=\"Bitstream Vera Sans\"];\n"
|
|
"\n", G_OBJECT_TYPE_NAME (bin), GST_OBJECT_NAME (bin),
|
|
(state_name ? state_name : ""), (param_name ? param_name : "")
|
|
);
|
|
if (state_name)
|
|
g_free (state_name);
|
|
if (param_name)
|
|
g_free (param_name);
|
|
|
|
debug_dump_element (bin, details, out, 1);
|
|
|
|
/* write footer */
|
|
fprintf (out, "}\n");
|
|
fclose (out);
|
|
GST_INFO ("wrote bin graph to : '%s'", full_file_name);
|
|
} else {
|
|
GST_WARNING ("Failed to open file '%s' for writing: %s", full_file_name,
|
|
g_strerror (errno));
|
|
}
|
|
g_free (full_file_name);
|
|
}
|
|
|
|
/*
|
|
* _gst_debug_bin_to_dot_file_with_ts:
|
|
* @bin: the top-level pipeline that should be analyzed
|
|
* @file_name: output base filename (e.g. "myplayer")
|
|
*
|
|
* This works like _gst_debug_bin_to_dot_file(), but adds the current timestamp
|
|
* to the filename, so that it can be used to take multiple snapshots.
|
|
*/
|
|
void
|
|
_gst_debug_bin_to_dot_file_with_ts (GstBin * bin, GstDebugGraphDetails details,
|
|
const gchar * file_name)
|
|
{
|
|
gchar *ts_file_name = NULL;
|
|
GstClockTime elapsed;
|
|
|
|
g_return_if_fail (GST_IS_BIN (bin));
|
|
|
|
if (!file_name) {
|
|
file_name = g_get_application_name ();
|
|
if (!file_name)
|
|
file_name = "unnamed";
|
|
}
|
|
|
|
/* add timestamp */
|
|
elapsed = GST_CLOCK_DIFF (_priv_gst_info_start_time,
|
|
gst_util_get_timestamp ());
|
|
ts_file_name =
|
|
g_strdup_printf ("%" GST_TIME_FORMAT "-%s", GST_TIME_ARGS (elapsed),
|
|
file_name);
|
|
|
|
_gst_debug_bin_to_dot_file (bin, details, ts_file_name);
|
|
g_free (ts_file_name);
|
|
}
|
|
|
|
#endif /* GST_DISABLE_GST_DEBUG */
|