2 * Copyright (C) 2007 Stefan Kost <ensonic@users.sf.net>
4 * gstdebugutils.c: debugging and analysis utilities
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
22 * edge [ constraint=false ];
23 * this creates strange graphs ("minlen=0" is better)
24 * try putting src/sink ghostpads for each bin into invisible clusters
26 * for more compact nodes, try
27 * - changing node-shape from box into record
28 * - use labels like : element [ label="{element | <src> src | <sink> sink}"]
29 * - point to record-connectors : element1:src -> element2:sink
30 * - we use head/tail labels for pad-caps right now
31 * - this does not work well, as dot seems to not look at their size when
33 * - we could add the caps to the pad itself, then we should use one line per
34 * caps (simple caps = one line)
37 #include "gst_private.h"
38 #include "gstdebugutils.h"
40 #ifndef GST_DISABLE_GST_DEBUG
49 #include "gstobject.h"
50 #include "gstghostpad.h"
55 /*** PIPELINE GRAPHS **********************************************************/
57 extern const gchar *priv_gst_dump_dot_dir; /* NULL *//* set from gst.c */
59 #define PARAM_MAX_LENGTH 80
61 static const gchar spaces[] = {
68 #define MAKE_INDENT(indent) \
69 &spaces[MAX (sizeof (spaces) - (1 + (indent) * 2), 0)]
72 debug_dump_make_object_name (GstObject * obj)
74 return g_strcanon (g_strdup_printf ("%s_%p", GST_OBJECT_NAME (obj), obj),
75 G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "_", '_');
79 debug_dump_get_element_state (GstElement * element)
81 gchar *state_name = NULL;
82 const gchar *state_icons = "~0-=>";
83 GstState state = GST_STATE_VOID_PENDING, pending = GST_STATE_VOID_PENDING;
85 gst_element_get_state (element, &state, &pending, 0);
86 if (pending == GST_STATE_VOID_PENDING) {
87 gboolean is_locked = gst_element_is_locked_state (element);
88 state_name = g_strdup_printf ("\\n[%c]%s", state_icons[state],
89 (is_locked ? "(locked)" : ""));
91 state_name = g_strdup_printf ("\\n[%c] -> [%c]", state_icons[state],
92 state_icons[pending]);
98 debug_dump_get_object_params (GObject * object,
99 GstDebugGraphDetails details, const char *const *ignored_propnames)
101 gchar *param_name = NULL;
102 GParamSpec **properties, *property;
103 GValue value = { 0, };
104 guint i, number_of_properties;
105 gchar *tmp, *value_str;
106 const gchar *ellipses;
108 /* get paramspecs and show non-default properties */
110 g_object_class_list_properties (G_OBJECT_GET_CLASS (object),
111 &number_of_properties);
113 for (i = 0; i < number_of_properties; i++) {
115 gboolean ignore = FALSE;
116 property = properties[i];
118 /* skip some properties */
119 if (!(property->flags & G_PARAM_READABLE))
121 if (!strcmp (property->name, "name"))
124 if (ignored_propnames)
125 for (j = 0; ignored_propnames[j]; j++)
126 if (!g_strcmp0 (ignored_propnames[j], property->name))
132 g_value_init (&value, property->value_type);
133 g_object_get_property (G_OBJECT (object), property->name, &value);
134 if (!(g_param_value_defaults (property, &value))) {
135 /* we need to serialise enums and flags ourselves to make sure the
136 * enum/flag nick is used and not the enum/flag name, which would be the
137 * C header enum/flag for public enums/flags, but for element-specific
138 * enums/flags we abuse the name field for the property description,
139 * and we don't want to print that in the dot file. The nick will
140 * always work, and it's also shorter. */
141 if (G_VALUE_HOLDS_ENUM (&value)) {
142 GEnumClass *e_class = g_type_class_ref (G_VALUE_TYPE (&value));
146 e_val = g_value_get_enum (&value);
147 for (idx = 0; idx < e_class->n_values; ++idx) {
148 if (e_class->values[idx].value == e_val) {
149 tmp = g_strdup (e_class->values[idx].value_nick);
154 g_value_unset (&value);
157 } else if (G_VALUE_HOLDS_FLAGS (&value)) {
158 GFlagsClass *f_class = g_type_class_ref (G_VALUE_TYPE (&value));
159 GFlagsValue *vals = f_class->values;
161 guint idx, flags_left;
163 s = g_string_new (NULL);
165 /* we assume the values are sorted from lowest to highest value */
166 flags_left = g_value_get_flags (&value);
167 idx = f_class->n_values;
170 if (vals[idx].value != 0
171 && (flags_left & vals[idx].value) == vals[idx].value) {
173 g_string_prepend_c (s, '+');
174 g_string_prepend (s, vals[idx].value_nick);
175 flags_left -= vals[idx].value;
182 g_string_assign (s, "(none)");
184 tmp = g_string_free (s, FALSE);
186 tmp = g_strdup_value_contents (&value);
188 value_str = g_strescape (tmp, NULL);
191 /* too long, ellipsize */
192 if (!(details & GST_DEBUG_GRAPH_SHOW_FULL_PARAMS) &&
193 strlen (value_str) > PARAM_MAX_LENGTH)
203 if (details & GST_DEBUG_GRAPH_SHOW_FULL_PARAMS) {
204 param_name = g_strdup_printf ("%s\\n%s=%s", tmp, property->name,
207 param_name = g_strdup_printf ("%s\\n%s=%."
208 G_STRINGIFY (PARAM_MAX_LENGTH) "s%s", tmp, property->name,
209 value_str, ellipses);
217 g_value_unset (&value);
225 debug_dump_pad (GstPad * pad, const gchar * color_name,
226 const gchar * element_name, GstDebugGraphDetails details, GString * str,
229 GstPadTemplate *pad_templ;
230 GstPadPresence presence;
231 gchar *pad_name, *param_name = NULL;
232 const gchar *style_name;
233 static const char *const ignore_propnames[] =
234 { "parent", "direction", "template",
237 const gchar *spc = MAKE_INDENT (indent);
239 pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
241 /* pad availability */
242 style_name = "filled,solid";
243 if ((pad_templ = gst_pad_get_pad_template (pad))) {
244 presence = GST_PAD_TEMPLATE_PRESENCE (pad_templ);
245 gst_object_unref (pad_templ);
246 if (presence == GST_PAD_SOMETIMES) {
247 style_name = "filled,dotted";
248 } else if (presence == GST_PAD_REQUEST) {
249 style_name = "filled,dashed";
254 debug_dump_get_object_params (G_OBJECT (pad), details, ignore_propnames);
255 if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
257 const gchar *activation_mode = "-><";
258 const gchar *task_mode = "";
261 GST_OBJECT_LOCK (pad);
262 task = GST_PAD_TASK (pad);
264 switch (gst_task_get_state (task)) {
265 case GST_TASK_STARTED:
268 case GST_TASK_PAUSED:
272 /* Invalid task state, ignoring */
276 GST_OBJECT_UNLOCK (pad);
278 /* check if pad flags */
280 GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_BLOCKED) ? 'B' : 'b';
282 GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_FLUSHING) ? 'F' : 'f';
284 GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_BLOCKING) ? 'B' : 'b';
285 pad_flags[3] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_EOS) ? 'E' : '\0';
288 g_string_append_printf (str,
289 "%s %s_%s [color=black, fillcolor=\"%s\", label=\"%s%s\\n[%c][%s]%s\", height=\"0.2\", style=\"%s\"];\n",
290 spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
291 (param_name ? param_name : ""),
292 activation_mode[pad->mode], pad_flags, task_mode, style_name);
294 g_string_append_printf (str,
295 "%s %s_%s [color=black, fillcolor=\"%s\", label=\"%s%s\", height=\"0.2\", style=\"%s\"];\n",
296 spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
297 (param_name ? param_name : ""), style_name);
305 debug_dump_element_pad (GstPad * pad, GstElement * element,
306 GstDebugGraphDetails details, GString * str, const gint indent)
308 GstElement *target_element;
309 GstPad *target_pad, *tmp_pad;
312 gchar *target_element_name;
313 const gchar *color_name;
315 dir = gst_pad_get_direction (pad);
316 element_name = debug_dump_make_object_name (GST_OBJECT (element));
317 if (GST_IS_GHOST_PAD (pad)) {
319 (dir == GST_PAD_SRC) ? "#ffdddd" : ((dir ==
320 GST_PAD_SINK) ? "#ddddff" : "#ffffff");
321 /* output target-pad so that it belongs to this element */
322 if ((tmp_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (pad)))) {
323 if ((target_pad = gst_pad_get_peer (tmp_pad))) {
324 gchar *pad_name, *target_pad_name;
325 const gchar *spc = MAKE_INDENT (indent);
327 if ((target_element = gst_pad_get_parent_element (target_pad))) {
328 target_element_name =
329 debug_dump_make_object_name (GST_OBJECT (target_element));
331 target_element_name = g_strdup ("");
333 debug_dump_pad (target_pad, color_name, target_element_name, details,
335 /* src ghostpad relationship */
336 pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
337 target_pad_name = debug_dump_make_object_name (GST_OBJECT (target_pad));
338 if (dir == GST_PAD_SRC) {
339 g_string_append_printf (str,
340 "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
341 target_element_name, target_pad_name, element_name, pad_name);
343 g_string_append_printf (str,
344 "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
345 element_name, pad_name, target_element_name, target_pad_name);
347 g_free (target_pad_name);
348 g_free (target_element_name);
350 gst_object_unref (target_element);
351 gst_object_unref (target_pad);
354 gst_object_unref (tmp_pad);
358 (dir == GST_PAD_SRC) ? "#ffaaaa" : ((dir ==
359 GST_PAD_SINK) ? "#aaaaff" : "#cccccc");
362 debug_dump_pad (pad, color_name, element_name, details, str, indent);
363 g_free (element_name);
367 string_append_field (GQuark field, const GValue * value, gpointer ptr)
369 GString *str = (GString *) ptr;
370 gchar *value_str = gst_value_serialize (value);
371 gchar *esc_value_str;
373 if (value_str == NULL) {
374 g_string_append_printf (str, " %18s: NULL\\l", g_quark_to_string (field));
378 /* some enums can become really long */
379 if (strlen (value_str) > 25) {
383 value_str[25] = '\0';
385 /* mirror any brackets and quotes */
386 if (value_str[0] == '<')
387 value_str[pos--] = '>';
388 if (value_str[0] == '[')
389 value_str[pos--] = ']';
390 if (value_str[0] == '(')
391 value_str[pos--] = ')';
392 if (value_str[0] == '{')
393 value_str[pos--] = '}';
394 if (value_str[0] == '"')
395 value_str[pos--] = '"';
397 value_str[pos--] = ' ';
399 value_str[pos--] = '.';
400 value_str[pos--] = '.';
401 value_str[pos--] = '.';
403 esc_value_str = g_strescape (value_str, NULL);
405 g_string_append_printf (str, " %18s: %s\\l", g_quark_to_string (field),
409 g_free (esc_value_str);
414 debug_dump_describe_caps (GstCaps * caps, GstDebugGraphDetails details)
418 if (details & GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS) {
420 if (gst_caps_is_any (caps) || gst_caps_is_empty (caps)) {
421 media = gst_caps_to_string (caps);
428 for (i = 0; i < gst_caps_get_size (caps); i++) {
430 STRUCTURE_ESTIMATED_STRING_LEN (gst_caps_get_structure (caps, i));
433 str = g_string_sized_new (slen);
434 for (i = 0; i < gst_caps_get_size (caps); i++) {
435 GstCapsFeatures *features = __gst_caps_get_features_unchecked (caps, i);
436 GstStructure *structure = gst_caps_get_structure (caps, i);
438 g_string_append (str, gst_structure_get_name (structure));
440 if (features && (gst_caps_features_is_any (features)
441 || !gst_caps_features_is_equal (features,
442 GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))) {
443 g_string_append_c (str, '(');
444 priv_gst_caps_features_append_to_gstring (features, str);
445 g_string_append_c (str, ')');
447 g_string_append (str, "\\l");
449 gst_structure_foreach (structure, string_append_field, (gpointer) str);
452 media = g_string_free (str, FALSE);
456 if (GST_CAPS_IS_SIMPLE (caps))
458 g_strdup (gst_structure_get_name (gst_caps_get_structure (caps, 0)));
460 media = g_strdup ("*");
466 debug_dump_element_pad_link (GstPad * pad, GstElement * element,
467 GstDebugGraphDetails details, GString * str, const gint indent)
469 GstElement *peer_element;
471 GstCaps *caps, *peer_caps;
473 gchar *media_src = NULL, *media_sink = NULL;
474 gchar *pad_name, *element_name;
475 gchar *peer_pad_name, *peer_element_name;
476 const gchar *spc = MAKE_INDENT (indent);
478 if ((peer_pad = gst_pad_get_peer (pad))) {
479 if ((details & GST_DEBUG_GRAPH_SHOW_MEDIA_TYPE) ||
480 (details & GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS)
482 caps = gst_pad_get_current_caps (pad);
484 caps = gst_pad_get_pad_template_caps (pad);
485 peer_caps = gst_pad_get_current_caps (peer_pad);
487 peer_caps = gst_pad_get_pad_template_caps (peer_pad);
489 media = debug_dump_describe_caps (caps, details);
490 /* check if peer caps are different */
491 if (peer_caps && !gst_caps_is_equal (caps, peer_caps)) {
494 tmp = debug_dump_describe_caps (peer_caps, details);
495 if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
504 gst_caps_unref (peer_caps);
505 gst_caps_unref (caps);
508 pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
510 element_name = debug_dump_make_object_name (GST_OBJECT (element));
512 element_name = g_strdup ("");
514 peer_pad_name = debug_dump_make_object_name (GST_OBJECT (peer_pad));
515 if ((peer_element = gst_pad_get_parent_element (peer_pad))) {
517 debug_dump_make_object_name (GST_OBJECT (peer_element));
519 peer_element_name = g_strdup ("");
524 g_string_append_printf (str, "%s%s_%s -> %s_%s [label=\"%s\"]\n", spc,
525 element_name, pad_name, peer_element_name, peer_pad_name, media);
527 } else if (media_src && media_sink) {
528 /* dot has some issues with placement of head and taillabels,
529 * we need an empty label to make space */
530 g_string_append_printf (str,
531 "%s%s_%s -> %s_%s [labeldistance=\"10\", labelangle=\"0\", "
533 "taillabel=\"%s\", headlabel=\"%s\"]\n",
534 spc, element_name, pad_name, peer_element_name, peer_pad_name,
535 media_src, media_sink);
539 g_string_append_printf (str, "%s%s_%s -> %s_%s\n", spc,
540 element_name, pad_name, peer_element_name, peer_pad_name);
544 g_free (element_name);
545 g_free (peer_pad_name);
546 g_free (peer_element_name);
548 gst_object_unref (peer_element);
549 gst_object_unref (peer_pad);
554 debug_dump_element_pads (GstIterator * pad_iter, GstPad * pad,
555 GstElement * element, GstDebugGraphDetails details, GString * str,
556 const gint indent, guint * num_pads, gchar * cluster_name,
557 gchar ** first_pad_name)
559 GValue item = { 0, };
561 const gchar *spc = MAKE_INDENT (indent);
565 switch (gst_iterator_next (pad_iter, &item)) {
566 case GST_ITERATOR_OK:
567 pad = g_value_get_object (&item);
569 g_string_append_printf (str, "%ssubgraph cluster_%s {\n", spc,
571 g_string_append_printf (str, "%s label=\"\";\n", spc);
572 g_string_append_printf (str, "%s style=\"invis\";\n", spc);
573 (*first_pad_name) = debug_dump_make_object_name (GST_OBJECT (pad));
575 debug_dump_element_pad (pad, element, details, str, indent);
577 g_value_reset (&item);
579 case GST_ITERATOR_RESYNC:
580 gst_iterator_resync (pad_iter);
582 case GST_ITERATOR_ERROR:
583 case GST_ITERATOR_DONE:
589 g_string_append_printf (str, "%s}\n\n", spc);
594 * debug_dump_element:
595 * @bin: the bin that should be analyzed
596 * @out: file to write to
597 * @indent: level of graph indentation
599 * Helper for gst_debug_bin_to_dot_file() to recursively dump a pipeline.
602 debug_dump_element (GstBin * bin, GstDebugGraphDetails details,
603 GString * str, const gint indent)
605 GstIterator *element_iter, *pad_iter;
606 gboolean elements_done, pads_done;
607 GValue item = { 0, };
608 GValue item2 = { 0, };
611 guint src_pads, sink_pads;
612 gchar *src_pad_name = NULL, *sink_pad_name = NULL;
614 gchar *state_name = NULL;
615 gchar *param_name = NULL;
616 const gchar *spc = MAKE_INDENT (indent);
618 element_iter = gst_bin_iterate_elements (bin);
619 elements_done = FALSE;
620 while (!elements_done) {
621 switch (gst_iterator_next (element_iter, &item)) {
622 case GST_ITERATOR_OK:
623 element = g_value_get_object (&item);
624 element_name = debug_dump_make_object_name (GST_OBJECT (element));
626 if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
627 state_name = debug_dump_get_element_state (GST_ELEMENT (element));
629 if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
630 param_name = debug_dump_get_object_params (G_OBJECT (element),
634 g_string_append_printf (str, "%ssubgraph cluster_%s {\n", spc,
636 g_string_append_printf (str, "%s fontname=\"Bitstream Vera Sans\";\n",
638 g_string_append_printf (str, "%s fontsize=\"8\";\n", spc);
639 g_string_append_printf (str, "%s style=\"filled,rounded\";\n", spc);
640 g_string_append_printf (str, "%s color=black;\n", spc);
641 g_string_append_printf (str, "%s label=\"%s\\n%s%s%s\";\n", spc,
642 G_OBJECT_TYPE_NAME (element), GST_OBJECT_NAME (element),
643 (state_name ? state_name : ""), (param_name ? param_name : "")
654 src_pads = sink_pads = 0;
655 if ((pad_iter = gst_element_iterate_sink_pads (element))) {
656 gchar *cluster_name = g_strdup_printf ("%s_sink", element_name);
657 debug_dump_element_pads (pad_iter, pad, element, details, str,
658 indent + 1, &sink_pads, cluster_name, &sink_pad_name);
659 g_free (cluster_name);
660 gst_iterator_free (pad_iter);
662 if ((pad_iter = gst_element_iterate_src_pads (element))) {
663 gchar *cluster_name = g_strdup_printf ("%s_src", element_name);
664 debug_dump_element_pads (pad_iter, pad, element, details, str,
665 indent + 1, &src_pads, cluster_name, &src_pad_name);
666 g_free (cluster_name);
667 gst_iterator_free (pad_iter);
669 if (sink_pads && src_pads) {
670 /* add invisible link from first sink to first src pad */
671 g_string_append_printf (str,
672 "%s %s_%s -> %s_%s [style=\"invis\"];\n",
673 spc, element_name, sink_pad_name, element_name, src_pad_name);
675 g_free (sink_pad_name);
676 g_free (src_pad_name);
677 g_free (element_name);
678 sink_pad_name = src_pad_name = NULL;
679 if (GST_IS_BIN (element)) {
680 g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
682 debug_dump_element (GST_BIN (element), details, str, indent + 1);
684 if (src_pads && !sink_pads)
685 g_string_append_printf (str, "%s fillcolor=\"#ffaaaa\";\n", spc);
686 else if (!src_pads && sink_pads)
687 g_string_append_printf (str, "%s fillcolor=\"#aaaaff\";\n", spc);
688 else if (src_pads && sink_pads)
689 g_string_append_printf (str, "%s fillcolor=\"#aaffaa\";\n", spc);
691 g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
693 g_string_append_printf (str, "%s}\n\n", spc);
694 if ((pad_iter = gst_element_iterate_pads (element))) {
697 switch (gst_iterator_next (pad_iter, &item2)) {
698 case GST_ITERATOR_OK:
699 pad = g_value_get_object (&item2);
700 if (gst_pad_is_linked (pad)) {
701 if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
702 debug_dump_element_pad_link (pad, element, details, str,
705 GstPad *peer_pad = gst_pad_get_peer (pad);
708 if (!GST_IS_GHOST_PAD (peer_pad)
709 && GST_IS_PROXY_PAD (peer_pad)) {
710 debug_dump_element_pad_link (peer_pad, NULL, details,
713 gst_object_unref (peer_pad);
717 g_value_reset (&item2);
719 case GST_ITERATOR_RESYNC:
720 gst_iterator_resync (pad_iter);
722 case GST_ITERATOR_ERROR:
723 case GST_ITERATOR_DONE:
728 g_value_unset (&item2);
729 gst_iterator_free (pad_iter);
731 g_value_reset (&item);
733 case GST_ITERATOR_RESYNC:
734 gst_iterator_resync (element_iter);
736 case GST_ITERATOR_ERROR:
737 case GST_ITERATOR_DONE:
738 elements_done = TRUE;
743 g_value_unset (&item);
744 gst_iterator_free (element_iter);
748 debug_dump_header (GstBin * bin, GstDebugGraphDetails details, GString * str)
750 gchar *state_name = NULL;
751 gchar *param_name = NULL;
753 if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
754 state_name = debug_dump_get_element_state (GST_ELEMENT (bin));
756 if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
757 param_name = debug_dump_get_object_params (G_OBJECT (bin), details, NULL);
761 g_string_append_printf (str,
762 "digraph pipeline {\n"
764 " fontname=\"sans\";\n"
765 " fontsize=\"10\";\n"
769 " label=\"<%s>\\n%s%s%s\";\n"
770 " node [style=\"filled,rounded\", shape=box, fontsize=\"9\", fontname=\"sans\", margin=\"0.0,0.0\"];\n"
771 " edge [labelfontsize=\"6\", fontsize=\"9\", fontname=\"monospace\"];\n"
775 " margin=\"0.05,0.05\",\n"
776 " style=\"filled\",\n"
777 " label=\"Legend\\lElement-States: [~] void-pending, [0] null, [-] ready, [=] paused, [>] playing\\lPad-Activation: [-] none, [>] push, [<] pull\\lPad-Flags: [b]locked, [f]lushing, [b]locking, [E]OS; upper-case is set\\lPad-Task: [T] has started task, [t] has paused task\\l\",\n"
779 "\n", G_OBJECT_TYPE_NAME (bin), GST_OBJECT_NAME (bin),
780 (state_name ? state_name : ""), (param_name ? param_name : "")
790 debug_dump_footer (GString * str)
792 g_string_append_printf (str, "}\n");
796 * gst_debug_bin_to_dot_data:
797 * @bin: the top-level pipeline that should be analyzed
798 * @details: type of #GstDebugGraphDetails to use
800 * To aid debugging applications one can use this method to obtain the whole
801 * network of gstreamer elements that form the pipeline into an dot file.
802 * This data can be processed with graphviz to get an image.
804 * Returns: (transfer full): a string containing the pipeline in graphviz
808 gst_debug_bin_to_dot_data (GstBin * bin, GstDebugGraphDetails details)
812 g_return_val_if_fail (GST_IS_BIN (bin), NULL);
814 str = g_string_new (NULL);
816 debug_dump_header (bin, details, str);
817 debug_dump_element (bin, details, str, 1);
818 debug_dump_footer (str);
820 return g_string_free (str, FALSE);
824 * gst_debug_bin_to_dot_file:
825 * @bin: the top-level pipeline that should be analyzed
826 * @details: type of #GstDebugGraphDetails to use
827 * @file_name: (type filename): output base filename (e.g. "myplayer")
829 * To aid debugging applications one can use this method to write out the whole
830 * network of gstreamer elements that form the pipeline into an dot file.
831 * This file can be processed with graphviz to get an image.
832 * <informalexample><programlisting>
833 * dot -Tpng -oimage.png graph_lowlevel.dot
834 * </programlisting></informalexample>
837 gst_debug_bin_to_dot_file (GstBin * bin, GstDebugGraphDetails details,
838 const gchar * file_name)
840 gchar *full_file_name = NULL;
843 g_return_if_fail (GST_IS_BIN (bin));
845 if (G_LIKELY (priv_gst_dump_dot_dir == NULL))
849 file_name = g_get_application_name ();
851 file_name = "unnamed";
854 full_file_name = g_strdup_printf ("%s" G_DIR_SEPARATOR_S "%s.dot",
855 priv_gst_dump_dot_dir, file_name);
857 if ((out = fopen (full_file_name, "wb"))) {
860 buf = gst_debug_bin_to_dot_data (bin, details);
866 GST_INFO ("wrote bin graph to : '%s'", full_file_name);
868 GST_WARNING ("Failed to open file '%s' for writing: %s", full_file_name,
871 g_free (full_file_name);
875 * gst_debug_bin_to_dot_file_with_ts:
876 * @bin: the top-level pipeline that should be analyzed
877 * @details: type of #GstDebugGraphDetails to use
878 * @file_name: (type filename): output base filename (e.g. "myplayer")
880 * This works like gst_debug_bin_to_dot_file(), but adds the current timestamp
881 * to the filename, so that it can be used to take multiple snapshots.
884 gst_debug_bin_to_dot_file_with_ts (GstBin * bin,
885 GstDebugGraphDetails details, const gchar * file_name)
887 gchar *ts_file_name = NULL;
888 GstClockTime elapsed;
890 g_return_if_fail (GST_IS_BIN (bin));
893 file_name = g_get_application_name ();
895 file_name = "unnamed";
899 elapsed = GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ());
901 /* we don't use GST_TIME_FORMAT as such filenames would fail on some
902 * filesystems like fat */
904 g_strdup_printf ("%u.%02u.%02u.%09u-%s", GST_TIME_ARGS (elapsed),
907 gst_debug_bin_to_dot_file (bin, details, ts_file_name);
908 g_free (ts_file_name);
910 #else /* !GST_DISABLE_GST_DEBUG */
911 #ifndef GST_REMOVE_DISABLED
913 gst_debug_bin_to_dot_file (GstBin * bin, GstDebugGraphDetails details,
914 const gchar * file_name)
919 gst_debug_bin_to_dot_file_with_ts (GstBin * bin, GstDebugGraphDetails details,
920 const gchar * file_name)
923 #endif /* GST_REMOVE_DISABLED */
924 #endif /* GST_DISABLE_GST_DEBUG */