2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
4 * 2004 Thomas Vander Stichele <thomas@apestaart.org>
6 * gst-inspect.c: tool to inspect the GStreamer registry
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
28 /* FIXME 2.0: suppress warnings for deprecated API such as GValueArray
29 * with newer GLib versions (>= 2.31.0) */
30 #define GLIB_DISABLE_DEPRECATION_WARNINGS
33 #include <gst/gst_private.h> /* for internal Factories */
37 #include <glib/gprintf.h>
39 static char *_name = NULL;
40 static int indent = 0;
42 static int print_element_info (GstPluginFeature * feature,
43 gboolean print_names);
44 static int print_typefind_info (GstPluginFeature * feature,
45 gboolean print_names);
46 static int print_tracer_info (GstPluginFeature * feature, gboolean print_names);
48 #define push_indent() push_indent_n(1)
49 #define pop_indent() push_indent_n(-1)
50 #define pop_indent_n(n) push_indent_n(-n)
55 g_assert (n > 0 || indent > 0);
64 n_print (const char *format, ...)
70 g_print ("%s", _name);
72 for (i = 0; i < indent; ++i)
75 va_start (args, format);
76 g_vprintf (format, args);
81 print_field (GQuark field, const GValue * value, gpointer pfx)
83 gchar *str = gst_value_serialize (value);
85 n_print ("%s %15s: %s\n", (gchar *) pfx, g_quark_to_string (field), str);
91 print_caps (const GstCaps * caps, const gchar * pfx)
95 g_return_if_fail (caps != NULL);
97 if (gst_caps_is_any (caps)) {
98 n_print ("%sANY\n", pfx);
101 if (gst_caps_is_empty (caps)) {
102 n_print ("%sEMPTY\n", pfx);
106 for (i = 0; i < gst_caps_get_size (caps); i++) {
107 GstStructure *structure = gst_caps_get_structure (caps, i);
108 GstCapsFeatures *features = gst_caps_get_features (caps, i);
110 if (features && (gst_caps_features_is_any (features) ||
111 !gst_caps_features_is_equal (features,
112 GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))) {
113 gchar *features_string = gst_caps_features_to_string (features);
115 n_print ("%s%s(%s)\n", pfx, gst_structure_get_name (structure),
117 g_free (features_string);
119 n_print ("%s%s\n", pfx, gst_structure_get_name (structure));
121 gst_structure_foreach (structure, print_field, (gpointer) pfx);
126 get_rank_name (char *s, gint rank)
128 static const int ranks[4] = {
129 GST_RANK_NONE, GST_RANK_MARGINAL, GST_RANK_SECONDARY, GST_RANK_PRIMARY
131 static const char *rank_names[4] = { "none", "marginal", "secondary",
138 for (i = 0; i < 4; i++) {
139 if (rank == ranks[i])
140 return rank_names[i];
141 if (abs (rank - ranks[i]) < abs (rank - ranks[best_i])) {
146 sprintf (s, "%s %c %d", rank_names[best_i],
147 (rank - ranks[best_i] > 0) ? '+' : '-', abs (ranks[best_i] - rank));
153 print_factory_details_info (GstElementFactory * factory)
159 rank = gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory));
160 n_print ("Factory Details:\n");
163 n_print ("%-25s%s (%d)\n", "Rank", get_rank_name (s, rank), rank);
165 keys = gst_element_factory_get_metadata_keys (factory);
167 for (k = keys; *k != NULL; ++k) {
171 val = gst_element_factory_get_metadata (factory, key);
172 key[0] = g_ascii_toupper (key[0]);
173 n_print ("%-25s%s\n", key, val);
182 print_hierarchy (GType type, gint level, gint * maxlevel)
187 parent = g_type_parent (type);
189 *maxlevel = *maxlevel + 1;
193 print_hierarchy (parent, level, maxlevel);
196 g_print ("%s", _name);
198 for (i = 1; i < *maxlevel - level; i++)
200 if (*maxlevel - level)
203 g_print ("%s\n", g_type_name (type));
210 print_interfaces (GType type)
213 GType *iface, *ifaces = g_type_interfaces (type, &n_ifaces);
217 n_print (_("Implemented Interfaces:\n"));
221 n_print ("%s\n", g_type_name (*iface));
232 flags_to_string (GFlagsValue * vals, guint flags)
237 /* first look for an exact match and count the number of values */
238 for (i = 0; vals[i].value_name != NULL; ++i) {
239 if (vals[i].value == flags)
240 return g_strdup (vals[i].value_nick);
243 s = g_string_new (NULL);
245 /* we assume the values are sorted from lowest to highest value */
249 if (vals[i].value != 0 && (flags_left & vals[i].value) == vals[i].value) {
251 g_string_append_c (s, '+');
252 g_string_append (s, vals[i].value_nick);
253 flags_left -= vals[i].value;
260 g_string_assign (s, "(none)");
262 return g_string_free (s, FALSE);
265 #define KNOWN_PARAM_FLAGS \
266 (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY | \
267 G_PARAM_LAX_VALIDATION | G_PARAM_STATIC_STRINGS | \
268 G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_DEPRECATED | \
269 GST_PARAM_CONTROLLABLE | GST_PARAM_MUTABLE_PLAYING | \
270 GST_PARAM_MUTABLE_PAUSED | GST_PARAM_MUTABLE_READY)
273 sort_gparamspecs (GParamSpec ** a, GParamSpec ** b)
275 return g_strcmp0 (g_param_spec_get_name (*a), g_param_spec_get_name (*b));
278 /* obj will be NULL if we're printing properties of pad template pads */
280 print_object_properties_info (GObject * obj, GObjectClass * obj_class,
283 GParamSpec **property_specs;
284 guint num_properties, i;
288 property_specs = g_object_class_list_properties (obj_class, &num_properties);
289 g_qsort_with_data (property_specs, num_properties, sizeof (gpointer),
290 (GCompareDataFunc) sort_gparamspecs, NULL);
292 n_print ("%s:\n", desc);
296 for (i = 0; i < num_properties; i++) {
297 GValue value = { 0, };
298 GParamSpec *param = property_specs[i];
299 GType owner_type = param->owner_type;
301 /* We're printing pad properties */
302 if (obj == NULL && (owner_type == G_TYPE_OBJECT
303 || owner_type == GST_TYPE_OBJECT || owner_type == GST_TYPE_PAD))
308 g_value_init (&value, param->value_type);
310 n_print ("%-20s: %s\n", g_param_spec_get_name (param),
311 g_param_spec_get_blurb (param));
317 readable = ! !(param->flags & G_PARAM_READABLE);
318 if (readable && obj != NULL) {
319 g_object_get_property (obj, param->name, &value);
321 /* if we can't read the property value, assume it's set to the default
322 * (which might not be entirely true for sub-classes, but that's an
323 * unlikely corner-case anyway) */
324 g_param_value_set_default (param, &value);
327 g_print ("%s%s", (first_flag) ? "" : ", ", _("readable"));
330 if (param->flags & G_PARAM_WRITABLE) {
331 g_print ("%s%s", (first_flag) ? "" : ", ", _("writable"));
334 if (param->flags & G_PARAM_DEPRECATED) {
335 g_print ("%s%s", (first_flag) ? "" : ", ", _("deprecated"));
338 if (param->flags & GST_PARAM_CONTROLLABLE) {
339 g_print (", %s", _("controllable"));
342 if (param->flags & GST_PARAM_MUTABLE_PLAYING) {
343 g_print (", %s", _("changeable in NULL, READY, PAUSED or PLAYING state"));
344 } else if (param->flags & GST_PARAM_MUTABLE_PAUSED) {
345 g_print (", %s", _("changeable only in NULL, READY or PAUSED state"));
346 } else if (param->flags & GST_PARAM_MUTABLE_READY) {
347 g_print (", %s", _("changeable only in NULL or READY state"));
349 if (param->flags & ~KNOWN_PARAM_FLAGS) {
350 g_print ("%s0x%0x", (first_flag) ? "" : ", ",
351 param->flags & ~KNOWN_PARAM_FLAGS);
355 switch (G_VALUE_TYPE (&value)) {
358 const char *string_val = g_value_get_string (&value);
360 n_print ("String. ");
362 if (string_val == NULL)
363 g_print ("Default: null");
365 g_print ("Default: \"%s\"", string_val);
370 gboolean bool_val = g_value_get_boolean (&value);
372 n_print ("Boolean. Default: %s", bool_val ? "true" : "false");
377 GParamSpecULong *pulong = G_PARAM_SPEC_ULONG (param);
379 n_print ("Unsigned Long. Range: %lu - %lu Default: %lu ",
380 pulong->minimum, pulong->maximum, g_value_get_ulong (&value));
382 GST_ERROR ("%s: property '%s' of type ulong: consider changing to "
383 "uint/uint64", G_OBJECT_CLASS_NAME (obj_class),
384 g_param_spec_get_name (param));
389 GParamSpecLong *plong = G_PARAM_SPEC_LONG (param);
391 n_print ("Long. Range: %ld - %ld Default: %ld ",
392 plong->minimum, plong->maximum, g_value_get_long (&value));
394 GST_ERROR ("%s: property '%s' of type long: consider changing to "
395 "int/int64", G_OBJECT_CLASS_NAME (obj_class),
396 g_param_spec_get_name (param));
401 GParamSpecUInt *puint = G_PARAM_SPEC_UINT (param);
403 n_print ("Unsigned Integer. Range: %u - %u Default: %u ",
404 puint->minimum, puint->maximum, g_value_get_uint (&value));
409 GParamSpecInt *pint = G_PARAM_SPEC_INT (param);
411 n_print ("Integer. Range: %d - %d Default: %d ",
412 pint->minimum, pint->maximum, g_value_get_int (&value));
417 GParamSpecUInt64 *puint64 = G_PARAM_SPEC_UINT64 (param);
419 n_print ("Unsigned Integer64. Range: %" G_GUINT64_FORMAT " - "
420 "%" G_GUINT64_FORMAT " Default: %" G_GUINT64_FORMAT " ",
421 puint64->minimum, puint64->maximum, g_value_get_uint64 (&value));
426 GParamSpecInt64 *pint64 = G_PARAM_SPEC_INT64 (param);
428 n_print ("Integer64. Range: %" G_GINT64_FORMAT " - %" G_GINT64_FORMAT
429 " Default: %" G_GINT64_FORMAT " ",
430 pint64->minimum, pint64->maximum, g_value_get_int64 (&value));
435 GParamSpecFloat *pfloat = G_PARAM_SPEC_FLOAT (param);
437 n_print ("Float. Range: %15.7g - %15.7g Default: %15.7g ",
438 pfloat->minimum, pfloat->maximum, g_value_get_float (&value));
443 GParamSpecDouble *pdouble = G_PARAM_SPEC_DOUBLE (param);
445 n_print ("Double. Range: %15.7g - %15.7g Default: %15.7g ",
446 pdouble->minimum, pdouble->maximum, g_value_get_double (&value));
451 GST_ERROR ("%s: property '%s' of type char: consider changing to "
452 "int/string", G_OBJECT_CLASS_NAME (obj_class),
453 g_param_spec_get_name (param));
456 if (param->value_type == GST_TYPE_CAPS) {
457 const GstCaps *caps = gst_value_get_caps (&value);
460 n_print ("Caps (NULL)");
462 print_caps (caps, " ");
464 } else if (G_IS_PARAM_SPEC_ENUM (param)) {
468 const gchar *value_nick = "";
470 values = G_ENUM_CLASS (g_type_class_ref (param->value_type))->values;
471 enum_value = g_value_get_enum (&value);
473 while (values[j].value_name) {
474 if (values[j].value == enum_value)
475 value_nick = values[j].value_nick;
479 n_print ("Enum \"%s\" Default: %d, \"%s\"",
480 g_type_name (G_VALUE_TYPE (&value)), enum_value, value_nick);
483 while (values[j].value_name) {
485 n_print (" (%d): %-16s - %s",
486 values[j].value, values[j].value_nick, values[j].value_name);
489 /* g_type_class_unref (ec); */
490 } else if (G_IS_PARAM_SPEC_FLAGS (param)) {
491 GParamSpecFlags *pflags = G_PARAM_SPEC_FLAGS (param);
495 vals = pflags->flags_class->values;
497 cur = flags_to_string (vals, g_value_get_flags (&value));
499 n_print ("Flags \"%s\" Default: 0x%08x, \"%s\"",
500 g_type_name (G_VALUE_TYPE (&value)),
501 g_value_get_flags (&value), cur);
503 while (vals[0].value_name) {
505 n_print (" (0x%08x): %-16s - %s",
506 vals[0].value, vals[0].value_nick, vals[0].value_name);
511 } else if (G_IS_PARAM_SPEC_OBJECT (param)) {
512 n_print ("Object of type \"%s\"", g_type_name (param->value_type));
513 } else if (G_IS_PARAM_SPEC_BOXED (param)) {
514 n_print ("Boxed pointer of type \"%s\"",
515 g_type_name (param->value_type));
516 if (param->value_type == GST_TYPE_STRUCTURE) {
517 const GstStructure *s = gst_value_get_structure (&value);
519 gst_structure_foreach (s, print_field,
522 } else if (G_IS_PARAM_SPEC_POINTER (param)) {
523 if (param->value_type != G_TYPE_POINTER) {
524 n_print ("Pointer of type \"%s\".",
525 g_type_name (param->value_type));
527 n_print ("Pointer.");
529 } else if (param->value_type == G_TYPE_VALUE_ARRAY) {
530 GParamSpecValueArray *pvarray = G_PARAM_SPEC_VALUE_ARRAY (param);
532 if (pvarray->element_spec) {
533 n_print ("Array of GValues of type \"%s\"",
534 g_type_name (pvarray->element_spec->value_type));
536 n_print ("Array of GValues");
538 } else if (GST_IS_PARAM_SPEC_FRACTION (param)) {
539 GstParamSpecFraction *pfraction = GST_PARAM_SPEC_FRACTION (param);
541 n_print ("Fraction. Range: %d/%d - %d/%d Default: %d/%d ",
542 pfraction->min_num, pfraction->min_den,
543 pfraction->max_num, pfraction->max_den,
544 gst_value_get_fraction_numerator (&value),
545 gst_value_get_fraction_denominator (&value));
546 } else if (param->value_type == GST_TYPE_ARRAY) {
547 GstParamSpecArray *parray = GST_PARAM_SPEC_ARRAY_LIST (param);
549 if (parray->element_spec) {
550 n_print ("GstValueArray of GValues of type \"%s\"",
551 g_type_name (parray->element_spec->value_type));
553 n_print ("GstValueArray of GValues");
556 n_print ("Unknown type %ld \"%s\"",
557 (glong) param->value_type, g_type_name (param->value_type));
562 g_print (" Write only\n");
568 g_value_reset (&value);
570 if (num_properties == 0)
575 g_free (property_specs);
579 print_element_properties_info (GstElement * element)
582 print_object_properties_info (G_OBJECT (element),
583 G_OBJECT_GET_CLASS (element), "Element Properties");
587 print_pad_templates_info (GstElement * element, GstElementFactory * factory)
590 GstStaticPadTemplate *padtemplate;
591 GstPadTemplate *tmpl;
593 n_print ("Pad Templates:\n");
597 if (gst_element_factory_get_num_pad_templates (factory) == 0) {
602 pads = gst_element_factory_get_static_pad_templates (factory);
604 padtemplate = (GstStaticPadTemplate *) (pads->data);
605 pads = g_list_next (pads);
607 if (padtemplate->direction == GST_PAD_SRC)
608 n_print ("SRC template: '%s'\n", padtemplate->name_template);
609 else if (padtemplate->direction == GST_PAD_SINK)
610 n_print ("SINK template: '%s'\n", padtemplate->name_template);
612 n_print ("UNKNOWN template: '%s'\n", padtemplate->name_template);
616 if (padtemplate->presence == GST_PAD_ALWAYS)
617 n_print ("Availability: Always\n");
618 else if (padtemplate->presence == GST_PAD_SOMETIMES)
619 n_print ("Availability: Sometimes\n");
620 else if (padtemplate->presence == GST_PAD_REQUEST) {
621 n_print ("Availability: On request\n");
623 n_print ("Availability: UNKNOWN\n");
625 if (padtemplate->static_caps.string) {
626 GstCaps *caps = gst_static_caps_get (&padtemplate->static_caps);
628 n_print ("Capabilities:\n");
631 print_caps (caps, ""); // FIXME
634 gst_caps_unref (caps);
637 tmpl = gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (element),
638 padtemplate->name_template);
640 GType pad_type = GST_PAD_TEMPLATE_GTYPE (tmpl);
642 if (pad_type != G_TYPE_NONE && pad_type != GST_TYPE_PAD) {
645 pad_klass = g_type_class_ref (pad_type);
646 n_print ("Type: %s\n", g_type_name (pad_type));
647 print_object_properties_info (NULL, pad_klass, "Pad Properties");
648 g_type_class_unref (pad_klass);
663 print_clocking_info (GstElement * element)
665 gboolean requires_clock, provides_clock;
668 GST_OBJECT_FLAG_IS_SET (element, GST_ELEMENT_FLAG_REQUIRE_CLOCK);
670 GST_OBJECT_FLAG_IS_SET (element, GST_ELEMENT_FLAG_PROVIDE_CLOCK);
672 if (!requires_clock && !provides_clock) {
674 n_print ("Element has no clocking capabilities.\n");
679 n_print ("Clocking Interaction:\n");
683 if (requires_clock) {
684 n_print ("element requires a clock\n");
687 if (provides_clock) {
690 clock = gst_element_get_clock (element);
692 n_print ("element provides a clock: %s\n", GST_OBJECT_NAME (clock));
693 gst_object_unref (clock);
695 n_print ("element is supposed to provide a clock but returned NULL\n");
702 print_uri_handler_info (GstElement * element)
704 if (GST_IS_URI_HANDLER (element)) {
705 const gchar *const *uri_protocols;
706 const gchar *uri_type;
708 if (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element)) == GST_URI_SRC)
710 else if (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element)) ==
714 uri_type = "unknown";
716 uri_protocols = gst_uri_handler_get_protocols (GST_URI_HANDLER (element));
719 n_print ("URI handling capabilities:\n");
723 n_print ("Element can act as %s.\n", uri_type);
725 if (uri_protocols && *uri_protocols) {
726 n_print ("Supported URI protocols:\n");
728 for (; *uri_protocols != NULL; uri_protocols++)
729 n_print ("%s\n", *uri_protocols);
732 n_print ("No supported URI protocols\n");
737 n_print ("Element has no URI handling capabilities.\n");
742 print_pad_info (GstElement * element)
752 if (!element->numpads) {
757 pads = element->pads;
762 pad = GST_PAD (pads->data);
763 pads = g_list_next (pads);
765 name = gst_pad_get_name (pad);
766 if (gst_pad_get_direction (pad) == GST_PAD_SRC)
767 n_print ("SRC: '%s'\n", name);
768 else if (gst_pad_get_direction (pad) == GST_PAD_SINK)
769 n_print ("SINK: '%s'\n", name);
771 n_print ("UNKNOWN: '%s'\n", name);
775 if (pad->padtemplate) {
777 n_print ("Pad Template: '%s'\n", pad->padtemplate->name_template);
781 caps = gst_pad_get_current_caps (pad);
783 n_print ("Capabilities:\n");
785 print_caps (caps, ""); // FIXME
787 gst_caps_unref (caps);
796 has_sometimes_template (GstElement * element)
798 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
801 for (l = klass->padtemplates; l != NULL; l = l->next) {
802 if (GST_PAD_TEMPLATE (l->data)->presence == GST_PAD_SOMETIMES)
810 gtype_needs_ptr_marker (GType type)
812 if (type == G_TYPE_POINTER)
815 if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_POINTER || G_TYPE_IS_BOXED (type)
816 || G_TYPE_IS_OBJECT (type))
823 print_signal_info (GstElement * element)
825 /* Signals/Actions Block */
829 GSignalQuery *query = NULL;
831 GSList *found_signals, *l;
833 for (k = 0; k < 2; k++) {
834 found_signals = NULL;
836 /* For elements that have sometimes pads, also list a few useful GstElement
837 * signals. Put these first, so element-specific ones come later. */
838 if (k == 0 && has_sometimes_template (element)) {
839 query = g_new0 (GSignalQuery, 1);
840 g_signal_query (g_signal_lookup ("pad-added", GST_TYPE_ELEMENT), query);
841 found_signals = g_slist_append (found_signals, query);
842 query = g_new0 (GSignalQuery, 1);
843 g_signal_query (g_signal_lookup ("pad-removed", GST_TYPE_ELEMENT), query);
844 found_signals = g_slist_append (found_signals, query);
845 query = g_new0 (GSignalQuery, 1);
846 g_signal_query (g_signal_lookup ("no-more-pads", GST_TYPE_ELEMENT),
848 found_signals = g_slist_append (found_signals, query);
851 for (type = G_OBJECT_TYPE (element); type; type = g_type_parent (type)) {
852 if (type == GST_TYPE_ELEMENT || type == GST_TYPE_OBJECT)
855 if (type == GST_TYPE_BIN && G_OBJECT_TYPE (element) != GST_TYPE_BIN)
858 signals = g_signal_list_ids (type, &nsignals);
859 for (i = 0; i < nsignals; i++) {
860 query = g_new0 (GSignalQuery, 1);
861 g_signal_query (signals[i], query);
863 if ((k == 0 && !(query->signal_flags & G_SIGNAL_ACTION)) ||
864 (k == 1 && (query->signal_flags & G_SIGNAL_ACTION)))
865 found_signals = g_slist_append (found_signals, query);
876 n_print ("Element Signals:\n");
878 n_print ("Element Actions:\n");
883 for (l = found_signals; l; l = l->next) {
888 query = (GSignalQuery *) l->data;
889 indent_len = strlen (query->signal_name) +
890 strlen (g_type_name (query->return_type)) + 24;
892 if (gtype_needs_ptr_marker (query->return_type)) {
899 indent = g_new0 (gchar, indent_len + 1);
900 memset (indent, ' ', indent_len);
902 n_print (" \"%s\" : %s %suser_function (%s* object",
903 query->signal_name, g_type_name (query->return_type), pmark,
906 for (j = 0; j < query->n_params; j++) {
907 const gchar *type_name, *asterisk;
909 type_name = g_type_name (query->param_types[j]);
910 asterisk = gtype_needs_ptr_marker (query->param_types[j]) ? "*" : "";
913 n_print ("%s%s%s arg%d", indent, type_name, asterisk, j);
918 n_print ("%sgpointer user_data);\n", indent);
926 g_slist_foreach (found_signals, (GFunc) g_free, NULL);
927 g_slist_free (found_signals);
933 print_children_info (GstElement * element)
937 if (!GST_IS_BIN (element))
940 children = (GList *) GST_BIN (element)->children;
943 n_print ("Children:\n");
947 n_print (" %s\n", GST_ELEMENT_NAME (GST_ELEMENT (children->data)));
948 children = g_list_next (children);
953 print_preset_list (GstElement * element)
955 gchar **presets, **preset;
957 if (!GST_IS_PRESET (element))
960 presets = gst_preset_get_preset_names (GST_PRESET (element));
961 if (presets && *presets) {
963 n_print ("Presets:\n");
964 for (preset = presets; *preset; preset++) {
965 n_print (" \"%s\"\n", *preset);
967 g_strfreev (presets);
972 print_blacklist (void)
974 GList *plugins, *cur;
977 g_print ("%s\n", _("Blacklisted files:"));
979 plugins = gst_registry_get_plugin_list (gst_registry_get ());
980 for (cur = plugins; cur != NULL; cur = g_list_next (cur)) {
981 GstPlugin *plugin = (GstPlugin *) (cur->data);
982 if (GST_OBJECT_FLAG_IS_SET (plugin, GST_PLUGIN_FLAG_BLACKLISTED)) {
983 g_print (" %s\n", gst_plugin_get_name (plugin));
989 g_print (_("Total count: "));
990 g_print (ngettext ("%d blacklisted file", "%d blacklisted files", count),
993 gst_plugin_list_free (plugins);
997 print_typefind_extensions (const gchar * const *extensions)
1001 while (extensions[i]) {
1002 g_print ("%s%s", i > 0 ? ", " : "", extensions[i]);
1008 print_element_list (gboolean print_all, gchar * ftypes)
1010 int plugincount = 0, featurecount = 0, blacklistcount = 0;
1011 GList *plugins, *orig_plugins;
1012 gchar **types = NULL;
1017 types = g_strsplit (ftypes, "/", -1);
1018 for (i = 0; types[i]; i++)
1019 *types[i] = g_ascii_toupper (*types[i]);
1023 orig_plugins = plugins = gst_registry_get_plugin_list (gst_registry_get ());
1025 GList *features, *orig_features;
1028 plugin = (GstPlugin *) (plugins->data);
1029 plugins = g_list_next (plugins);
1032 if (GST_OBJECT_FLAG_IS_SET (plugin, GST_PLUGIN_FLAG_BLACKLISTED)) {
1037 orig_features = features =
1038 gst_registry_get_feature_list_by_plugin (gst_registry_get (),
1039 gst_plugin_get_name (plugin));
1041 GstPluginFeature *feature;
1043 if (G_UNLIKELY (features->data == NULL))
1045 feature = GST_PLUGIN_FEATURE (features->data);
1048 if (GST_IS_ELEMENT_FACTORY (feature)) {
1050 GstElementFactory *factory;
1052 factory = GST_ELEMENT_FACTORY (feature);
1055 gboolean all_found = TRUE;
1058 gst_element_factory_get_metadata (factory,
1059 GST_ELEMENT_METADATA_KLASS);
1060 for (i = 0; types[i]; i++) {
1061 if (!strstr (klass, types[i])) {
1071 print_element_info (feature, TRUE);
1073 g_print ("%s: %s: %s\n", gst_plugin_get_name (plugin),
1074 GST_OBJECT_NAME (factory),
1075 gst_element_factory_get_metadata (factory,
1076 GST_ELEMENT_METADATA_LONGNAME));
1077 } else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
1078 GstTypeFindFactory *factory;
1079 const gchar *const *extensions;
1083 factory = GST_TYPE_FIND_FACTORY (feature);
1085 g_print ("%s: %s: ", gst_plugin_get_name (plugin),
1086 gst_plugin_feature_get_name (feature));
1088 extensions = gst_type_find_factory_get_extensions (factory);
1089 if (extensions != NULL) {
1091 print_typefind_extensions (extensions);
1096 g_print ("no extensions\n");
1102 n_print ("%s: %s (%s)\n", gst_plugin_get_name (plugin),
1103 GST_OBJECT_NAME (feature), g_type_name (G_OBJECT_TYPE (feature)));
1107 features = g_list_next (features);
1110 gst_plugin_feature_list_free (orig_features);
1113 gst_plugin_list_free (orig_plugins);
1117 g_print (_("Total count: "));
1118 g_print (ngettext ("%d plugin", "%d plugins", plugincount), plugincount);
1119 if (blacklistcount) {
1121 g_print (ngettext ("%d blacklist entry", "%d blacklist entries",
1122 blacklistcount), blacklistcount);
1123 g_print (" not shown)");
1126 g_print (ngettext ("%d feature", "%d features", featurecount), featurecount);
1131 print_all_uri_handlers (void)
1133 GList *plugins, *p, *features, *f;
1135 plugins = gst_registry_get_plugin_list (gst_registry_get ());
1137 for (p = plugins; p; p = p->next) {
1138 GstPlugin *plugin = (GstPlugin *) (p->data);
1141 gst_registry_get_feature_list_by_plugin (gst_registry_get (),
1142 gst_plugin_get_name (plugin));
1144 for (f = features; f; f = f->next) {
1145 GstPluginFeature *feature = GST_PLUGIN_FEATURE (f->data);
1147 if (GST_IS_ELEMENT_FACTORY (feature)) {
1148 GstElementFactory *factory;
1149 GstElement *element;
1151 factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (feature));
1153 g_print ("element plugin %s couldn't be loaded\n",
1154 gst_plugin_get_name (plugin));
1158 element = gst_element_factory_create (factory, NULL);
1160 g_print ("couldn't construct element for %s for some reason\n",
1161 GST_OBJECT_NAME (factory));
1162 gst_object_unref (factory);
1166 if (GST_IS_URI_HANDLER (element)) {
1167 const gchar *const *uri_protocols;
1171 switch (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element))) {
1184 gst_uri_handler_get_protocols (GST_URI_HANDLER (element));
1185 joined = g_strjoinv (", ", (gchar **) uri_protocols);
1187 g_print ("%s (%s, rank %u): %s\n",
1188 gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)), dir,
1189 gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)),
1195 gst_object_unref (element);
1196 gst_object_unref (factory);
1200 gst_plugin_feature_list_free (features);
1203 gst_plugin_list_free (plugins);
1207 print_plugin_info (GstPlugin * plugin)
1209 const gchar *release_date = gst_plugin_get_release_date_string (plugin);
1210 const gchar *filename = gst_plugin_get_filename (plugin);
1212 n_print ("Plugin Details:\n");
1216 n_print ("%-25s%s\n", "Name", gst_plugin_get_name (plugin));
1217 n_print ("%-25s%s\n", "Description", gst_plugin_get_description (plugin));
1218 n_print ("%-25s%s\n", "Filename", (filename != NULL) ? filename : "(null)");
1219 n_print ("%-25s%s\n", "Version", gst_plugin_get_version (plugin));
1220 n_print ("%-25s%s\n", "License", gst_plugin_get_license (plugin));
1221 n_print ("%-25s%s\n", "Source module", gst_plugin_get_source (plugin));
1223 if (release_date != NULL) {
1224 const gchar *tz = "(UTC)";
1227 /* may be: YYYY-MM-DD or YYYY-MM-DDTHH:MMZ */
1228 /* YYYY-MM-DDTHH:MMZ => YYYY-MM-DD HH:MM (UTC) */
1229 str = g_strdup (release_date);
1230 sep = strstr (str, "T");
1233 sep = strstr (sep + 1, "Z");
1239 n_print ("%-25s%s%s\n", "Source release date", str, tz);
1242 n_print ("%-25s%s\n", "Binary package", gst_plugin_get_package (plugin));
1243 n_print ("%-25s%s\n", "Origin URL", gst_plugin_get_origin (plugin));
1251 print_plugin_features (GstPlugin * plugin)
1253 GList *features, *origlist;
1254 gint num_features = 0;
1255 gint num_elements = 0;
1256 gint num_tracers = 0;
1257 gint num_typefinders = 0;
1258 gint num_devproviders = 0;
1261 origlist = features =
1262 gst_registry_get_feature_list_by_plugin (gst_registry_get (),
1263 gst_plugin_get_name (plugin));
1266 GstPluginFeature *feature;
1268 feature = GST_PLUGIN_FEATURE (features->data);
1270 if (GST_IS_ELEMENT_FACTORY (feature)) {
1271 GstElementFactory *factory;
1273 factory = GST_ELEMENT_FACTORY (feature);
1274 n_print (" %s: %s\n", GST_OBJECT_NAME (factory),
1275 gst_element_factory_get_metadata (factory,
1276 GST_ELEMENT_METADATA_LONGNAME));
1278 } else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
1279 GstTypeFindFactory *factory;
1280 const gchar *const *extensions;
1282 factory = GST_TYPE_FIND_FACTORY (feature);
1283 extensions = gst_type_find_factory_get_extensions (factory);
1287 g_print (" %s: %s: ", gst_plugin_get_name (plugin),
1288 gst_plugin_feature_get_name (feature));
1289 while (extensions[i]) {
1290 g_print ("%s%s", i > 0 ? ", " : "", extensions[i]);
1295 g_print (" %s: %s: no extensions\n", gst_plugin_get_name (plugin),
1296 gst_plugin_feature_get_name (feature));
1299 } else if (GST_IS_DEVICE_PROVIDER_FACTORY (feature)) {
1300 GstDeviceProviderFactory *factory;
1302 factory = GST_DEVICE_PROVIDER_FACTORY (feature);
1303 n_print (" %s: %s\n", GST_OBJECT_NAME (factory),
1304 gst_device_provider_factory_get_metadata (factory,
1305 GST_ELEMENT_METADATA_LONGNAME));
1307 } else if (GST_IS_TRACER_FACTORY (feature)) {
1308 n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)),
1309 g_type_name (G_OBJECT_TYPE (feature)));
1311 } else if (feature) {
1312 n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)),
1313 g_type_name (G_OBJECT_TYPE (feature)));
1317 features = g_list_next (features);
1320 gst_plugin_feature_list_free (origlist);
1323 n_print (" %d features:\n", num_features);
1324 if (num_elements > 0)
1325 n_print (" +-- %d elements\n", num_elements);
1326 if (num_typefinders > 0)
1327 n_print (" +-- %d typefinders\n", num_typefinders);
1328 if (num_devproviders > 0)
1329 n_print (" +-- %d device providers\n", num_devproviders);
1330 if (num_tracers > 0)
1331 n_print (" +-- %d tracers\n", num_tracers);
1333 n_print (" +-- %d other objects\n", num_other);
1339 print_feature_info (const gchar * feature_name, gboolean print_all)
1341 GstPluginFeature *feature;
1342 GstRegistry *registry = gst_registry_get ();
1345 if ((feature = gst_registry_find_feature (registry, feature_name,
1346 GST_TYPE_ELEMENT_FACTORY))) {
1347 ret = print_element_info (feature, print_all);
1350 if ((feature = gst_registry_find_feature (registry, feature_name,
1351 GST_TYPE_TYPE_FIND_FACTORY))) {
1352 ret = print_typefind_info (feature, print_all);
1355 if ((feature = gst_registry_find_feature (registry, feature_name,
1356 GST_TYPE_TRACER_FACTORY))) {
1357 ret = print_tracer_info (feature, print_all);
1361 /* TODO: handle DEVICE_PROVIDER_FACTORY */
1366 gst_object_unref (feature);
1371 print_element_info (GstPluginFeature * feature, gboolean print_names)
1373 GstElementFactory *factory;
1374 GstElement *element;
1378 factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (feature));
1380 g_print ("element plugin couldn't be loaded\n");
1384 element = gst_element_factory_create (factory, NULL);
1386 gst_object_unref (factory);
1387 g_print ("couldn't construct element for some reason\n");
1392 _name = g_strdup_printf ("%s: ", GST_OBJECT_NAME (factory));
1396 print_factory_details_info (factory);
1398 plugin = gst_plugin_feature_get_plugin (GST_PLUGIN_FEATURE (factory));
1400 print_plugin_info (plugin);
1401 gst_object_unref (plugin);
1404 print_hierarchy (G_OBJECT_TYPE (element), 0, &maxlevel);
1405 print_interfaces (G_OBJECT_TYPE (element));
1407 print_pad_templates_info (element, factory);
1408 print_clocking_info (element);
1409 print_uri_handler_info (element);
1410 print_pad_info (element);
1411 print_element_properties_info (element);
1412 print_signal_info (element);
1413 print_children_info (element);
1414 print_preset_list (element);
1416 gst_object_unref (element);
1417 gst_object_unref (factory);
1423 print_typefind_info (GstPluginFeature * feature, gboolean print_names)
1425 GstTypeFindFactory *factory;
1430 const gchar *const *extensions;
1432 factory = GST_TYPE_FIND_FACTORY (gst_plugin_feature_load (feature));
1434 g_print ("typefind plugin couldn't be loaded\n");
1439 _name = g_strdup_printf ("%s: ", GST_OBJECT_NAME (factory));
1443 n_print ("Factory Details:\n");
1444 rank = gst_plugin_feature_get_rank (feature);
1445 n_print (" %-25s%s (%d)\n", "Rank", get_rank_name (s, rank), rank);
1446 n_print (" %-25s%s\n", "Name", GST_OBJECT_NAME (factory));
1447 caps = gst_type_find_factory_get_caps (factory);
1449 gchar *caps_str = gst_caps_to_string (factory->caps);
1451 n_print (" %-25s%s\n", "Caps", caps_str);
1454 extensions = gst_type_find_factory_get_extensions (factory);
1456 n_print (" %-25s", "Extensions");
1457 print_typefind_extensions (extensions);
1462 plugin = gst_plugin_feature_get_plugin (GST_PLUGIN_FEATURE (factory));
1464 print_plugin_info (plugin);
1465 gst_object_unref (plugin);
1468 gst_object_unref (factory);
1474 print_tracer_info (GstPluginFeature * feature, gboolean print_names)
1476 GstTracerFactory *factory;
1481 factory = GST_TRACER_FACTORY (gst_plugin_feature_load (feature));
1483 g_print ("tracer plugin couldn't be loaded\n");
1487 tracer = (GstTracer *) g_object_new (factory->type, NULL);
1489 gst_object_unref (factory);
1490 g_print ("couldn't construct tracer for some reason\n");
1495 _name = g_strdup_printf ("%s: ", GST_OBJECT_NAME (factory));
1499 n_print ("Factory Details:\n");
1500 n_print (" %-25s%s\n", "Name", GST_OBJECT_NAME (factory));
1503 plugin = gst_plugin_feature_get_plugin (GST_PLUGIN_FEATURE (factory));
1505 print_plugin_info (plugin);
1506 gst_object_unref (plugin);
1509 print_hierarchy (G_OBJECT_TYPE (tracer), 0, &maxlevel);
1510 print_interfaces (G_OBJECT_TYPE (tracer));
1512 /* TODO: list what hooks it registers
1513 * - the data is available in gsttracerutils, we need to iterate the
1514 * _priv_tracers hashtable for each probe and then check the list of hooks
1515 * for each probe whether hook->tracer == tracer :/
1518 /* TODO: list what records it emits
1519 * - in class_init tracers can create GstTracerRecord instances
1520 * - those only get logged right now and there is no association with the
1521 * tracer that created them
1522 * - we'd need to add them to GstTracerFactory
1523 * gst_tracer_class_add_record (klass, record);
1524 * - needs work in gstregistrychunks to (de)serialize specs
1525 * - gst_tracer_register() would need to iterate the list of records and
1526 * copy the record->spec into the factory
1529 gst_object_unref (tracer);
1530 gst_object_unref (factory);
1536 print_plugin_automatic_install_info_codecs (GstElementFactory * factory)
1538 GstPadDirection direction;
1539 const gchar *type_name;
1541 const GList *static_templates, *l;
1542 GstCaps *caps = NULL;
1546 gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS);
1547 g_return_if_fail (klass != NULL);
1549 if (strstr (klass, "Demuxer") ||
1550 strstr (klass, "Decoder") ||
1551 strstr (klass, "Depay") || strstr (klass, "Parser")) {
1552 type_name = "decoder";
1553 direction = GST_PAD_SINK;
1554 } else if (strstr (klass, "Muxer") ||
1555 strstr (klass, "Encoder") || strstr (klass, "Pay")) {
1556 type_name = "encoder";
1557 direction = GST_PAD_SRC;
1562 /* decoder/demuxer sink pads should always be static and there should only
1563 * be one, the same applies to encoders/muxers and source pads */
1564 static_templates = gst_element_factory_get_static_pad_templates (factory);
1565 for (l = static_templates; l != NULL; l = l->next) {
1566 GstStaticPadTemplate *tmpl = NULL;
1568 tmpl = (GstStaticPadTemplate *) l->data;
1569 if (tmpl->direction == direction) {
1570 caps = gst_static_pad_template_get_caps (tmpl);
1576 g_printerr ("Couldn't find static pad template for %s '%s'\n",
1577 type_name, GST_OBJECT_NAME (factory));
1581 caps = gst_caps_make_writable (caps);
1582 num = gst_caps_get_size (caps);
1583 for (i = 0; i < num; ++i) {
1587 s = gst_caps_get_structure (caps, i);
1588 /* remove fields that are almost always just MIN-MAX of some sort
1589 * in order to make the caps look less messy */
1590 gst_structure_remove_field (s, "pixel-aspect-ratio");
1591 gst_structure_remove_field (s, "framerate");
1592 gst_structure_remove_field (s, "channels");
1593 gst_structure_remove_field (s, "width");
1594 gst_structure_remove_field (s, "height");
1595 gst_structure_remove_field (s, "rate");
1596 gst_structure_remove_field (s, "depth");
1597 gst_structure_remove_field (s, "clock-rate");
1598 s_str = gst_structure_to_string (s);
1599 g_print ("%s-%s\n", type_name, s_str);
1602 gst_caps_unref (caps);
1606 print_plugin_automatic_install_info_protocols (GstElementFactory * factory)
1608 const gchar *const *protocols;
1610 protocols = gst_element_factory_get_uri_protocols (factory);
1611 if (protocols != NULL && *protocols != NULL) {
1612 switch (gst_element_factory_get_uri_type (factory)) {
1614 while (*protocols != NULL) {
1615 g_print ("urisink-%s\n", *protocols);
1620 while (*protocols != NULL) {
1621 g_print ("urisource-%s\n", *protocols);
1632 print_plugin_automatic_install_info (GstPlugin * plugin)
1634 GList *features, *l;
1636 /* not interested in typefind factories, only element factories */
1637 features = gst_registry_get_feature_list (gst_registry_get (),
1638 GST_TYPE_ELEMENT_FACTORY);
1640 for (l = features; l != NULL; l = l->next) {
1641 GstPluginFeature *feature;
1642 GstPlugin *feature_plugin;
1644 feature = GST_PLUGIN_FEATURE (l->data);
1646 /* only interested in the ones that are in the plugin we just loaded */
1647 feature_plugin = gst_plugin_feature_get_plugin (feature);
1648 if (feature_plugin == plugin) {
1649 GstElementFactory *factory;
1651 g_print ("element-%s\n", gst_plugin_feature_get_name (feature));
1653 factory = GST_ELEMENT_FACTORY (feature);
1654 print_plugin_automatic_install_info_protocols (factory);
1655 print_plugin_automatic_install_info_codecs (factory);
1658 gst_object_unref (feature_plugin);
1661 g_list_foreach (features, (GFunc) gst_object_unref, NULL);
1662 g_list_free (features);
1666 print_all_plugin_automatic_install_info (void)
1668 GList *plugins, *orig_plugins;
1670 orig_plugins = plugins = gst_registry_get_plugin_list (gst_registry_get ());
1674 plugin = (GstPlugin *) (plugins->data);
1675 plugins = g_list_next (plugins);
1677 print_plugin_automatic_install_info (plugin);
1679 gst_plugin_list_free (orig_plugins);
1683 main (int argc, char *argv[])
1685 gboolean print_all = FALSE;
1686 gboolean do_print_blacklist = FALSE;
1687 gboolean plugin_name = FALSE;
1688 gboolean print_aii = FALSE;
1689 gboolean uri_handlers = FALSE;
1690 gboolean check_exists = FALSE;
1691 gchar *min_version = NULL;
1692 guint minver_maj = GST_VERSION_MAJOR;
1693 guint minver_min = GST_VERSION_MINOR;
1694 guint minver_micro = 0;
1695 gchar *types = NULL;
1696 #ifndef GST_DISABLE_OPTION_PARSING
1697 GOptionEntry options[] = {
1698 {"print-all", 'a', 0, G_OPTION_ARG_NONE, &print_all,
1699 N_("Print all elements"), NULL},
1700 {"print-blacklist", 'b', 0, G_OPTION_ARG_NONE, &do_print_blacklist,
1701 N_("Print list of blacklisted files"), NULL},
1702 {"print-plugin-auto-install-info", '\0', 0, G_OPTION_ARG_NONE, &print_aii,
1703 N_("Print a machine-parsable list of features the specified plugin "
1704 "or all plugins provide.\n "
1705 "Useful in connection with external automatic plugin "
1706 "installation mechanisms"), NULL},
1707 {"plugin", '\0', 0, G_OPTION_ARG_NONE, &plugin_name,
1708 N_("List the plugin contents"), NULL},
1709 {"types", 't', 0, G_OPTION_ARG_STRING, &types,
1710 N_("A slashes ('/') separated list of types of elements (also known "
1711 "as klass) to list. (unordered)"), NULL},
1712 {"exists", '\0', 0, G_OPTION_ARG_NONE, &check_exists,
1713 N_("Check if the specified element or plugin exists"), NULL},
1714 {"atleast-version", '\0', 0, G_OPTION_ARG_STRING, &min_version,
1716 ("When checking if an element or plugin exists, also check that its "
1717 "version is at least the version specified"), NULL},
1718 {"uri-handlers", 'u', 0, G_OPTION_ARG_NONE, &uri_handlers,
1720 ("Print supported URI schemes, with the elements that implement them"),
1722 GST_TOOLS_GOPTION_VERSION,
1725 GOptionContext *ctx;
1729 setlocale (LC_ALL, "");
1732 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1733 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1734 textdomain (GETTEXT_PACKAGE);
1737 /* avoid glib warnings when inspecting deprecated properties */
1738 g_setenv ("G_ENABLE_DIAGNOSTIC", "0", FALSE);
1740 g_set_prgname ("gst-inspect-" GST_API_VERSION);
1742 #ifndef GST_DISABLE_OPTION_PARSING
1743 ctx = g_option_context_new ("[ELEMENT-NAME | PLUGIN-NAME]");
1744 g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE);
1745 g_option_context_add_group (ctx, gst_init_get_option_group ());
1746 if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
1747 g_printerr ("Error initializing: %s\n", err->message);
1748 g_clear_error (&err);
1749 g_option_context_free (ctx);
1752 g_option_context_free (ctx);
1754 gst_init (&argc, &argv);
1757 gst_tools_print_version ();
1759 if (print_all && argc > 1) {
1760 g_printerr ("-a requires no extra arguments\n");
1764 if (uri_handlers && argc > 1) {
1765 g_printerr ("-u requires no extra arguments\n");
1769 /* --atleast-version implies --exists */
1770 if (min_version != NULL) {
1771 if (sscanf (min_version, "%u.%u.%u", &minver_maj, &minver_min,
1772 &minver_micro) < 2) {
1773 g_printerr ("Can't parse version '%s' passed to --atleast-version\n",
1777 check_exists = TRUE;
1784 g_printerr ("--exists requires an extra command line argument\n");
1788 GstPluginFeature *feature;
1790 feature = gst_registry_lookup_feature (gst_registry_get (), argv[1]);
1791 if (feature != NULL && gst_plugin_feature_check_version (feature,
1792 minver_maj, minver_min, minver_micro)) {
1799 gst_object_unref (feature);
1801 /* FIXME: support checking for plugins too */
1802 g_printerr ("Checking for plugins is not supported yet\n");
1809 /* if no arguments, print out list of elements */
1811 print_all_uri_handlers ();
1812 } else if (argc == 1 || print_all) {
1813 if (do_print_blacklist)
1817 print_all_plugin_automatic_install_info ();
1819 print_element_list (print_all, types);
1822 /* else we try to get a factory */
1823 const char *arg = argv[argc - 1];
1827 retval = print_feature_info (arg, print_all);
1830 /* otherwise check if it's a plugin */
1832 GstPlugin *plugin = gst_registry_find_plugin (gst_registry_get (), arg);
1834 /* if there is such a plugin, print out info */
1837 print_plugin_automatic_install_info (plugin);
1839 print_plugin_info (plugin);
1840 print_plugin_features (plugin);
1843 GError *error = NULL;
1845 if (g_file_test (arg, G_FILE_TEST_EXISTS)) {
1846 plugin = gst_plugin_load_file (arg, &error);
1850 print_plugin_automatic_install_info (plugin);
1852 print_plugin_info (plugin);
1853 print_plugin_features (plugin);
1856 g_printerr (_("Could not load plugin file: %s\n"), error->message);
1857 g_clear_error (&error);
1861 g_printerr (_("No such element or plugin '%s'\n"), arg);