/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000 Wim Taymans * 2004 Thomas Vander Stichele * * gst-inspect.c: tool to inspect the GStreamer registry * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include "tools.h" #include #include #include static char *_name = NULL; static int print_element_info (GstElementFactory * factory, gboolean print_names); static void n_print (const char *format, ...) { va_list args; gint retval; if (_name) g_print ("%s", _name); va_start (args, format); retval = g_vprintf (format, args); va_end (args); } static gboolean print_field (GQuark field, const GValue * value, gpointer pfx) { gchar *str = gst_value_serialize (value); n_print ("%s %15s: %s\n", (gchar *) pfx, g_quark_to_string (field), str); g_free (str); return TRUE; } static void print_caps (const GstCaps * caps, const gchar * pfx) { guint i; g_return_if_fail (caps != NULL); if (gst_caps_is_any (caps)) { n_print ("%sANY\n", pfx); return; } if (gst_caps_is_empty (caps)) { n_print ("%sEMPTY\n", pfx); return; } for (i = 0; i < gst_caps_get_size (caps); i++) { GstStructure *structure = gst_caps_get_structure (caps, i); n_print ("%s%s\n", pfx, gst_structure_get_name (structure)); gst_structure_foreach (structure, print_field, (gpointer) pfx); } } #if 0 static void print_formats (const GstFormat * formats) { while (formats && *formats) { const GstFormatDefinition *definition; definition = gst_format_get_details (*formats); if (definition) n_print ("\t\t(%d):\t%s (%s)\n", *formats, definition->nick, definition->description); else n_print ("\t\t(%d):\tUnknown format\n", *formats); formats++; } } #endif static void print_query_types (const GstQueryType * types) { while (types && *types) { const GstQueryTypeDefinition *definition; definition = gst_query_type_get_details (*types); if (definition) n_print ("\t\t(%d):\t%s (%s)\n", *types, definition->nick, definition->description); else n_print ("\t\t(%d):\tUnknown query format\n", *types); types++; } } #if 0 static void print_event_masks (const GstEventMask * masks) { GType event_type; GEnumClass *klass; GType event_flags; GFlagsClass *flags_class = NULL; event_type = gst_event_type_get_type (); klass = (GEnumClass *) g_type_class_ref (event_type); while (masks && masks->type) { GEnumValue *value; gint flags = 0, index = 0; switch (masks->type) { case GST_EVENT_SEEK: flags = masks->flags; event_flags = gst_seek_type_get_type (); flags_class = (GFlagsClass *) g_type_class_ref (event_flags); break; default: break; } value = g_enum_get_value (klass, masks->type); g_print ("\t\t%s ", value->value_nick); while (flags) { GFlagsValue *value; if (flags & 1) { value = g_flags_get_first_value (flags_class, 1 << index); if (value) g_print ("| %s ", value->value_nick); else g_print ("| ? "); } flags >>= 1; index++; } g_print ("\n"); masks++; } } #endif static char * get_rank_name (gint rank) { switch (rank) { case GST_RANK_NONE: return "none"; case GST_RANK_MARGINAL: return "marginal"; case GST_RANK_SECONDARY: return "secondary"; case GST_RANK_PRIMARY: return "primary"; default: return "unknown"; } } static void print_factory_details_info (GstElementFactory * factory) { n_print ("Factory Details:\n"); n_print (" Long name:\t%s\n", factory->details.longname); n_print (" Class:\t%s\n", factory->details.klass); n_print (" Description:\t%s\n", factory->details.description); n_print (" Author(s):\t%s\n", factory->details.author); n_print (" Rank:\t\t%s (%d)\n", get_rank_name (GST_PLUGIN_FEATURE (factory)->rank), GST_PLUGIN_FEATURE (factory)->rank); n_print ("\n"); } static void print_hierarchy (GType type, gint level, gint * maxlevel) { GType parent; gint i; parent = g_type_parent (type); *maxlevel = *maxlevel + 1; level++; if (parent) print_hierarchy (parent, level, maxlevel); if (_name) g_print ("%s", _name); for (i = 1; i < *maxlevel - level; i++) g_print (" "); if (*maxlevel - level) g_print (" +----"); g_print ("%s\n", g_type_name (type)); if (level == 1) n_print ("\n"); } static void print_interfaces (GType type) { guint n_ifaces; GType *iface, *ifaces = g_type_interfaces (type, &n_ifaces); if (ifaces) { if (n_ifaces) { if (_name) g_print ("%s", _name); g_print (_("Implemented Interfaces:\n")); iface = ifaces; while (*iface) { if (_name) g_print ("%s", _name); g_print (" %s\n", g_type_name (*iface)); iface++; } if (_name) g_print ("%s", _name); g_print ("\n"); } g_free (ifaces); } } static gchar * flags_to_string (GFlagsValue * vals, guint flags) { GString *s = NULL; guint flags_left, i; /* first look for an exact match and count the number of values */ for (i = 0; vals[i].value_name != NULL; ++i) { if (vals[i].value == flags) return g_strdup (vals[i].value_nick); } s = g_string_new (NULL); /* we assume the values are sorted from lowest to highest value */ flags_left = flags; while (i > 0) { --i; if (vals[i].value != 0 && (flags_left & vals[i].value) == vals[i].value) { if (s->len > 0) g_string_append (s, " | "); g_string_append (s, vals[i].value_nick); flags_left -= vals[i].value; if (flags_left == 0) break; } } if (s->len == 0) g_string_assign (s, "(none)"); return g_string_free (s, FALSE); } static void print_element_properties_info (GstElement * element) { GParamSpec **property_specs; guint num_properties, i; gboolean readable; gboolean first_flag; property_specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (element), &num_properties); n_print ("\n"); n_print ("Element Properties:\n"); for (i = 0; i < num_properties; i++) { GValue value = { 0, }; GParamSpec *param = property_specs[i]; readable = FALSE; g_value_init (&value, param->value_type); n_print (" %-20s: %s\n", g_param_spec_get_name (param), g_param_spec_get_blurb (param)); first_flag = TRUE; n_print ("%-23.23s flags: ", ""); if (param->flags & G_PARAM_READABLE) { g_object_get_property (G_OBJECT (element), param->name, &value); readable = TRUE; if (!first_flag) g_print (", "); else first_flag = FALSE; g_print (_("readable")); } if (param->flags & G_PARAM_WRITABLE) { if (!first_flag) g_print (", "); else first_flag = FALSE; g_print (_("writable")); } if (param->flags & GST_PARAM_CONTROLLABLE) { if (!first_flag) g_print (", "); g_print (_("controllable")); } n_print ("\n"); switch (G_VALUE_TYPE (&value)) { case G_TYPE_STRING: { GParamSpecString *pstring = G_PARAM_SPEC_STRING (param); n_print ("%-23.23s String. ", ""); if (pstring->default_value == NULL) g_print ("Default: null "); else g_print ("Default: \"%s\" ", pstring->default_value); if (readable) { const char *string_val = g_value_get_string (&value); if (string_val == NULL) g_print ("Current: null"); else g_print ("Current: \"%s\"", string_val); } break; } case G_TYPE_BOOLEAN: { GParamSpecBoolean *pboolean = G_PARAM_SPEC_BOOLEAN (param); n_print ("%-23.23s Boolean. ", ""); g_print ("Default: %s ", (pboolean->default_value ? "true" : "false")); if (readable) g_print ("Current: %s", (g_value_get_boolean (&value) ? "true" : "false")); break; } case G_TYPE_ULONG: { GParamSpecULong *pulong = G_PARAM_SPEC_ULONG (param); n_print ("%-23.23s Unsigned Long. ", ""); g_print ("Range: %lu - %lu Default: %lu ", pulong->minimum, pulong->maximum, pulong->default_value); if (readable) g_print ("Current: %lu", g_value_get_ulong (&value)); break; } case G_TYPE_LONG: { GParamSpecLong *plong = G_PARAM_SPEC_LONG (param); n_print ("%-23.23s Long. ", ""); g_print ("Range: %ld - %ld Default: %ld ", plong->minimum, plong->maximum, plong->default_value); if (readable) g_print ("Current: %ld", g_value_get_long (&value)); break; } case G_TYPE_UINT: { GParamSpecUInt *puint = G_PARAM_SPEC_UINT (param); n_print ("%-23.23s Unsigned Integer. ", ""); g_print ("Range: %u - %u Default: %u ", puint->minimum, puint->maximum, puint->default_value); if (readable) g_print ("Current: %u", g_value_get_uint (&value)); break; } case G_TYPE_INT: { GParamSpecInt *pint = G_PARAM_SPEC_INT (param); n_print ("%-23.23s Integer. ", ""); g_print ("Range: %d - %d Default: %d ", pint->minimum, pint->maximum, pint->default_value); if (readable) g_print ("Current: %d", g_value_get_int (&value)); break; } case G_TYPE_UINT64: { GParamSpecUInt64 *puint64 = G_PARAM_SPEC_UINT64 (param); n_print ("%-23.23s Unsigned Integer64. ", ""); g_print ("Range: %" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT " Default: %" G_GUINT64_FORMAT " ", puint64->minimum, puint64->maximum, puint64->default_value); if (readable) g_print ("Current: %" G_GUINT64_FORMAT, g_value_get_uint64 (&value)); break; } case G_TYPE_INT64: { GParamSpecInt64 *pint64 = G_PARAM_SPEC_INT64 (param); n_print ("%-23.23s Integer64. ", ""); g_print ("Range: %" G_GINT64_FORMAT " - %" G_GINT64_FORMAT " Default: %" G_GINT64_FORMAT " ", pint64->minimum, pint64->maximum, pint64->default_value); if (readable) g_print ("Current: %" G_GINT64_FORMAT, g_value_get_int64 (&value)); break; } case G_TYPE_FLOAT: { GParamSpecFloat *pfloat = G_PARAM_SPEC_FLOAT (param); n_print ("%-23.23s Float. ", ""); g_print ("Range: %15.7g - %15.7g Default: %15.7g ", pfloat->minimum, pfloat->maximum, pfloat->default_value); if (readable) g_print ("Current: %15.7g", g_value_get_float (&value)); break; } case G_TYPE_DOUBLE: { GParamSpecDouble *pdouble = G_PARAM_SPEC_DOUBLE (param); n_print ("%-23.23s Double. ", ""); g_print ("Range: %15.7g - %15.7g Default: %15.7g ", pdouble->minimum, pdouble->maximum, pdouble->default_value); if (readable) g_print ("Current: %15.7g", g_value_get_double (&value)); break; } default: if (param->value_type == GST_TYPE_CAPS) { const GstCaps *caps = gst_value_get_caps (&value); if (!caps) n_print ("%-23.23s Caps (NULL)", ""); else { print_caps (caps, " "); } } else if (G_IS_PARAM_SPEC_ENUM (param)) { GParamSpecEnum *penum = G_PARAM_SPEC_ENUM (param); GEnumValue *values; guint j = 0; gint enum_value; const gchar *def_val_nick = "", *cur_val_nick = ""; values = G_ENUM_CLASS (g_type_class_ref (param->value_type))->values; enum_value = g_value_get_enum (&value); while (values[j].value_name) { if (values[j].value == enum_value) cur_val_nick = values[j].value_nick; if (values[j].value == penum->default_value) def_val_nick = values[j].value_nick; j++; } n_print ("%-23.23s Enum \"%s\" Default: %d, \"%s\" Current: %d, \"%s\"", "", g_type_name (G_VALUE_TYPE (&value)), penum->default_value, def_val_nick, enum_value, cur_val_nick); j = 0; while (values[j].value_name) { g_print ("\n"); if (_name) g_print ("%s", _name); g_print ("%-23.23s (%d): %-16s - %s", "", values[j].value, values[j].value_nick, values[j].value_name); j++; } /* g_type_class_unref (ec); */ } else if (G_IS_PARAM_SPEC_FLAGS (param)) { GParamSpecFlags *pflags = G_PARAM_SPEC_FLAGS (param); GFlagsValue *vals; gchar *cur, *def; vals = pflags->flags_class->values; cur = flags_to_string (vals, g_value_get_flags (&value)); def = flags_to_string (vals, pflags->default_value); n_print ("%-23.23s Flags \"%s\" Default: 0x%08x, \"%s\" Current: 0x%08x, \"%s\"", "", g_type_name (G_VALUE_TYPE (&value)), pflags->default_value, def, g_value_get_flags (&value), cur); while (vals[0].value_name) { g_print ("\n"); if (_name) g_print ("%s", _name); g_print ("%-23.23s (0x%08x): %-16s - %s", "", vals[0].value, vals[0].value_nick, vals[0].value_name); ++vals; } g_free (cur); g_free (def); } else if (G_IS_PARAM_SPEC_OBJECT (param)) { n_print ("%-23.23s Object of type \"%s\"", "", g_type_name (param->value_type)); } else if (G_IS_PARAM_SPEC_BOXED (param)) { n_print ("%-23.23s Boxed pointer of type \"%s\"", "", g_type_name (param->value_type)); } else if (G_IS_PARAM_SPEC_POINTER (param)) { if (param->value_type != G_TYPE_POINTER) { n_print ("%-23.23s Pointer of type \"%s\".", "", g_type_name (param->value_type)); } else { n_print ("%-23.23s Pointer.", ""); } } else if (param->value_type == G_TYPE_VALUE_ARRAY) { GParamSpecValueArray *pvarray = G_PARAM_SPEC_VALUE_ARRAY (param); if (pvarray->element_spec) { n_print ("%-23.23s Array of GValues of type \"%s\"", "", g_type_name (pvarray->element_spec->value_type)); } else { n_print ("%-23.23s Array of GValues", ""); } } else if (GST_IS_PARAM_SPEC_FRACTION (param)) { GstParamSpecFraction *pfraction = GST_PARAM_SPEC_FRACTION (param); n_print ("%-23.23s Fraction. ", ""); g_print ("Range: %d/%d - %d/%d Default: %d/%d ", pfraction->min_num, pfraction->min_den, pfraction->max_num, pfraction->max_den, pfraction->def_num, pfraction->def_den); if (readable) g_print ("Current: %d/%d", gst_value_get_fraction_numerator (&value), gst_value_get_fraction_denominator (&value)); } else if (GST_IS_PARAM_SPEC_MINI_OBJECT (param)) { n_print ("%-23.23s MiniObject of type \"%s\"", "", g_type_name (param->value_type)); } else { n_print ("%-23.23s Unknown type %ld \"%s\"", "", param->value_type, g_type_name (param->value_type)); } break; } if (!readable) g_print (" Write only\n"); else g_print ("\n"); g_value_reset (&value); } if (num_properties == 0) n_print (" none\n"); g_free (property_specs); } static void print_pad_templates_info (GstElement * element, GstElementFactory * factory) { GstElementClass *gstelement_class; const GList *pads; GstStaticPadTemplate *padtemplate; n_print ("Pad Templates:\n"); if (!factory->numpadtemplates) { n_print (" none\n"); return; } gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element)); pads = factory->staticpadtemplates; while (pads) { padtemplate = (GstStaticPadTemplate *) (pads->data); pads = g_list_next (pads); if (padtemplate->direction == GST_PAD_SRC) n_print (" SRC template: '%s'\n", padtemplate->name_template); else if (padtemplate->direction == GST_PAD_SINK) n_print (" SINK template: '%s'\n", padtemplate->name_template); else n_print (" UNKNOWN!!! template: '%s'\n", padtemplate->name_template); if (padtemplate->presence == GST_PAD_ALWAYS) n_print (" Availability: Always\n"); else if (padtemplate->presence == GST_PAD_SOMETIMES) n_print (" Availability: Sometimes\n"); else if (padtemplate->presence == GST_PAD_REQUEST) { n_print (" Availability: On request\n"); n_print (" Has request_new_pad() function: %s\n", GST_DEBUG_FUNCPTR_NAME (gstelement_class->request_new_pad)); } else n_print (" Availability: UNKNOWN!!!\n"); if (padtemplate->static_caps.string) { n_print (" Capabilities:\n"); print_caps (gst_static_caps_get (&padtemplate->static_caps), " "); } n_print ("\n"); } } static void print_element_flag_info (GstElement * element) { gboolean have_flags = FALSE; n_print ("\n"); n_print ("Element Flags:\n"); if (!have_flags) n_print (" no flags set\n"); if (GST_IS_BIN (element)) { n_print ("\n"); n_print ("Bin Flags:\n"); if (!have_flags) n_print (" no flags set\n"); } } static void print_implementation_info (GstElement * element) { GstObjectClass *gstobject_class; GstElementClass *gstelement_class; gstobject_class = GST_OBJECT_CLASS (G_OBJECT_GET_CLASS (element)); gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element)); n_print ("\n"); n_print ("Element Implementation:\n"); n_print (" Has change_state() function: %s\n", GST_DEBUG_FUNCPTR_NAME (gstelement_class->change_state)); #ifndef GST_DISABLE_LOADSAVE n_print (" Has custom save_thyself() function: %s\n", GST_DEBUG_FUNCPTR_NAME (gstobject_class->save_thyself)); n_print (" Has custom restore_thyself() function: %s\n", GST_DEBUG_FUNCPTR_NAME (gstobject_class->restore_thyself)); #endif } static void print_clocking_info (GstElement * element) { if (!gst_element_requires_clock (element) && !(gst_element_provides_clock (element) && gst_element_get_clock (element))) { n_print ("\n"); n_print ("Element has no clocking capabilities."); return; } n_print ("\n"); n_print ("Clocking Interaction:\n"); if (gst_element_requires_clock (element)) { n_print (" element requires a clock\n"); } if (gst_element_provides_clock (element)) { GstClock *clock; clock = gst_element_get_clock (element); if (clock) n_print (" element provides a clock: %s\n", GST_OBJECT_NAME (clock)); else n_print (" element is supposed to provide a clock but returned NULL\n"); } } static void print_index_info (GstElement * element) { if (gst_element_is_indexable (element)) { n_print ("\n"); n_print ("Indexing capabilities:\n"); n_print (" element can do indexing\n"); } else { n_print ("\n"); n_print ("Element has no indexing capabilities.\n"); } } static void print_uri_handler_info (GstElement * element) { if (GST_IS_URI_HANDLER (element)) { const gchar *uri_type; gchar **uri_protocols; if (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element)) == GST_URI_SRC) uri_type = "source"; else if (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element)) == GST_URI_SINK) uri_type = "sink"; else uri_type = "unknown"; uri_protocols = gst_uri_handler_get_protocols (GST_URI_HANDLER (element)); n_print ("\n"); n_print ("URI handling capabilities:\n"); n_print (" Element can act as %s.\n", uri_type); if (uri_protocols && *uri_protocols) { n_print (" Supported URI protocols:\n"); for (; *uri_protocols != NULL; uri_protocols++) n_print (" %s\n", *uri_protocols); } else { n_print (" No supported URI protocols\n"); } } else { n_print ("Element has no URI handling capabilities.\n"); } } static void print_pad_info (GstElement * element) { const GList *pads; GstPad *pad; n_print ("\n"); n_print ("Pads:\n"); if (!element->numpads) { n_print (" none\n"); return; } pads = element->pads; while (pads) { gchar *name; pad = GST_PAD (pads->data); pads = g_list_next (pads); n_print (""); name = gst_pad_get_name (pad); if (gst_pad_get_direction (pad) == GST_PAD_SRC) g_print (" SRC: '%s'", name); else if (gst_pad_get_direction (pad) == GST_PAD_SINK) g_print (" SINK: '%s'", name); else g_print (" UNKNOWN!!!: '%s'", name); g_free (name); g_print ("\n"); n_print (" Implementation:\n"); if (pad->chainfunc) n_print (" Has chainfunc(): %s\n", GST_DEBUG_FUNCPTR_NAME (pad->chainfunc)); if (pad->getrangefunc) n_print (" Has getrangefunc(): %s\n", GST_DEBUG_FUNCPTR_NAME (pad->getrangefunc)); if (pad->eventfunc != gst_pad_event_default) n_print (" Has custom eventfunc(): %s\n", GST_DEBUG_FUNCPTR_NAME (pad->eventfunc)); if (pad->queryfunc != gst_pad_query_default) n_print (" Has custom queryfunc(): %s\n", GST_DEBUG_FUNCPTR_NAME (pad->queryfunc)); if (pad->querytypefunc != gst_pad_get_query_types_default) { n_print (" Provides query types:\n"); print_query_types (gst_pad_get_query_types (pad)); } if (pad->intlinkfunc != gst_pad_get_internal_links_default) n_print (" Has custom intconnfunc(): %s\n", GST_DEBUG_FUNCPTR_NAME (pad->intlinkfunc)); if (pad->bufferallocfunc) n_print (" Has bufferallocfunc(): %s\n", GST_DEBUG_FUNCPTR_NAME (pad->bufferallocfunc)); if (pad->padtemplate) n_print (" Pad Template: '%s'\n", pad->padtemplate->name_template); if (pad->caps) { n_print (" Capabilities:\n"); print_caps (pad->caps, " "); } } } #if 0 static gint compare_signal_names (GSignalQuery * a, GSignalQuery * b) { return strcmp (a->signal_name, b->signal_name); } #endif static void print_signal_info (GstElement * element) { /* Signals/Actions Block */ guint *signals; guint nsignals; gint i = 0, j, k; GSignalQuery *query = NULL; GType type; GSList *found_signals, *l; for (k = 0; k < 2; k++) { found_signals = NULL; for (type = G_OBJECT_TYPE (element); type; type = g_type_parent (type)) { if (type == GST_TYPE_ELEMENT || type == GST_TYPE_OBJECT) break; if (type == GST_TYPE_BIN && G_OBJECT_TYPE (element) != GST_TYPE_BIN) continue; signals = g_signal_list_ids (type, &nsignals); for (i = 0; i < nsignals; i++) { query = g_new0 (GSignalQuery, 1); g_signal_query (signals[i], query); if ((k == 0 && !(query->signal_flags & G_SIGNAL_ACTION)) || (k == 1 && (query->signal_flags & G_SIGNAL_ACTION))) found_signals = g_slist_append (found_signals, query); else g_free (query); } g_free (signals); signals = NULL; } if (found_signals) { n_print ("\n"); if (k == 0) n_print ("Element Signals:\n"); else n_print ("Element Actions:\n"); } else { continue; } for (l = found_signals; l; l = l->next) { gchar *indent; int indent_len; query = (GSignalQuery *) l->data; indent_len = strlen (query->signal_name) + strlen (g_type_name (query->return_type)) + 24; indent = g_new0 (gchar, indent_len + 1); memset (indent, ' ', indent_len); n_print (" \"%s\" : %s user_function (%s* object", query->signal_name, g_type_name (query->return_type), g_type_name (type)); for (j = 0; j < query->n_params; j++) { if (_name) g_print ("%s", _name); if (G_TYPE_IS_FUNDAMENTAL (query->param_types[j])) { g_print (",\n%s%s arg%d", indent, g_type_name (query->param_types[j]), j); } else if (G_TYPE_IS_ENUM (query->param_types[j])) { g_print (",\n%s%s arg%d", indent, g_type_name (query->param_types[j]), j); } else { g_print (",\n%s%s* arg%d", indent, g_type_name (query->param_types[j]), j); } } if (k == 0) { if (_name) g_print ("%s", _name); g_print (",\n%sgpointer user_data);\n", indent); } else g_print (");\n"); g_free (indent); } if (found_signals) { g_slist_foreach (found_signals, (GFunc) g_free, NULL); g_slist_free (found_signals); } } } static void print_children_info (GstElement * element) { GList *children; if (!GST_IS_BIN (element)) return; children = (GList *) GST_BIN (element)->children; if (children) { n_print ("\n"); g_print ("Children:\n"); } while (children) { n_print (" %s\n", GST_ELEMENT_NAME (GST_ELEMENT (children->data))); children = g_list_next (children); } } static void print_element_list (gboolean print_all) { int plugincount = 0, featurecount = 0; GList *plugins, *orig_plugins; orig_plugins = plugins = gst_default_registry_get_plugin_list (); while (plugins) { GList *features, *orig_features; GstPlugin *plugin; plugin = (GstPlugin *) (plugins->data); plugins = g_list_next (plugins); plugincount++; orig_features = features = gst_registry_get_feature_list_by_plugin (gst_registry_get_default (), plugin->desc.name); while (features) { GstPluginFeature *feature; feature = GST_PLUGIN_FEATURE (features->data); featurecount++; if (GST_IS_ELEMENT_FACTORY (feature)) { GstElementFactory *factory; factory = GST_ELEMENT_FACTORY (feature); if (print_all) print_element_info (factory, TRUE); else g_print ("%s: %s: %s\n", plugin->desc.name, GST_PLUGIN_FEATURE_NAME (factory), gst_element_factory_get_longname (factory)); } else if (GST_IS_INDEX_FACTORY (feature)) { GstIndexFactory *factory; factory = GST_INDEX_FACTORY (feature); if (!print_all) g_print ("%s: %s: %s\n", plugin->desc.name, GST_PLUGIN_FEATURE_NAME (factory), factory->longdesc); } else if (GST_IS_TYPE_FIND_FACTORY (feature)) { GstTypeFindFactory *factory; factory = GST_TYPE_FIND_FACTORY (feature); if (!print_all) g_print ("%s: %s: ", plugin->desc.name, gst_plugin_feature_get_name (feature)); if (factory->extensions) { guint i = 0; while (factory->extensions[i]) { if (!print_all) g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]); i++; } if (!print_all) g_print ("\n"); } else { if (!print_all) g_print ("no extensions\n"); } } else { if (!print_all) n_print ("%s: %s (%s)\n", plugin->desc.name, GST_PLUGIN_FEATURE_NAME (feature), g_type_name (G_OBJECT_TYPE (feature))); } features = g_list_next (features); } gst_plugin_feature_list_free (orig_features); } gst_plugin_list_free (orig_plugins); g_print ("\n"); g_print (_("Total count: ")); g_print (ngettext ("%d plugin", "%d plugins", plugincount), plugincount); g_print (", "); g_print (ngettext ("%d feature", "%d features", featurecount), featurecount); g_print ("\n"); } static void print_all_uri_handlers (void) { GList *plugins, *p, *features, *f; plugins = gst_default_registry_get_plugin_list (); for (p = plugins; p; p = p->next) { GstPlugin *plugin = (GstPlugin *) (p->data); features = gst_registry_get_feature_list_by_plugin (gst_registry_get_default (), plugin->desc.name); for (f = features; f; f = f->next) { GstPluginFeature *feature = GST_PLUGIN_FEATURE (f->data); if (GST_IS_ELEMENT_FACTORY (feature)) { GstElementFactory *factory; GstElement *element; factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (feature)); if (!factory) { g_print ("element plugin %s couldn't be loaded\n", plugin->desc.name); continue; } element = gst_element_factory_create (factory, NULL); if (!element) { g_print ("couldn't construct element for %s for some reason\n", GST_OBJECT_NAME (factory)); gst_object_unref (factory); continue; } if (GST_IS_URI_HANDLER (element)) { const gchar *dir; gchar **uri_protocols, *joined; switch (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element))) { case GST_URI_SRC: dir = "read"; break; case GST_URI_SINK: dir = "write"; break; default: dir = "unknown"; break; } uri_protocols = gst_uri_handler_get_protocols (GST_URI_HANDLER (element)); joined = g_strjoinv (", ", uri_protocols); g_print ("%s (%s, rank %u): %s\n", GST_OBJECT_NAME (factory), dir, gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)), joined); g_free (joined); //g_strfreev (uri_protocols); } gst_object_unref (element); gst_object_unref (factory); } } gst_plugin_feature_list_free (features); } gst_plugin_list_free (plugins); } static void print_plugin_info (GstPlugin * plugin) { n_print ("Plugin Details:\n"); n_print (" Name:\t\t\t%s\n", plugin->desc.name); n_print (" Description:\t\t%s\n", plugin->desc.description); n_print (" Filename:\t\t%s\n", plugin->filename ? plugin->filename : "(null)"); n_print (" Version:\t\t%s\n", plugin->desc.version); n_print (" License:\t\t%s\n", plugin->desc.license); n_print (" Source module:\t%s\n", plugin->desc.source); n_print (" Binary package:\t%s\n", plugin->desc.package); n_print (" Origin URL:\t\t%s\n", plugin->desc.origin); n_print ("\n"); } static void print_plugin_features (GstPlugin * plugin) { GList *features; gint num_features = 0; gint num_elements = 0; gint num_types = 0; gint num_indexes = 0; gint num_other = 0; features = gst_registry_get_feature_list_by_plugin (gst_registry_get_default (), plugin->desc.name); while (features) { GstPluginFeature *feature; feature = GST_PLUGIN_FEATURE (features->data); if (GST_IS_ELEMENT_FACTORY (feature)) { GstElementFactory *factory; factory = GST_ELEMENT_FACTORY (feature); n_print (" %s: %s\n", GST_PLUGIN_FEATURE_NAME (factory), gst_element_factory_get_longname (factory)); num_elements++; } else if (GST_IS_INDEX_FACTORY (feature)) { GstIndexFactory *factory; factory = GST_INDEX_FACTORY (feature); n_print (" %s: %s\n", GST_OBJECT_NAME (factory), factory->longdesc); num_indexes++; } else if (GST_IS_TYPE_FIND_FACTORY (feature)) { GstTypeFindFactory *factory; factory = GST_TYPE_FIND_FACTORY (feature); if (factory->extensions) { guint i = 0; g_print ("%s: %s: ", plugin->desc.name, gst_plugin_feature_get_name (feature)); while (factory->extensions[i]) { g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]); i++; } g_print ("\n"); } else g_print ("%s: %s: no extensions\n", plugin->desc.name, gst_plugin_feature_get_name (feature)); num_types++; } else { n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)), g_type_name (G_OBJECT_TYPE (feature))); num_other++; } num_features++; features = g_list_next (features); } n_print ("\n"); n_print (" %d features:\n", num_features); if (num_elements > 0) n_print (" +-- %d elements\n", num_elements); if (num_types > 0) n_print (" +-- %d types\n", num_types); if (num_indexes > 0) n_print (" +-- %d indexes\n", num_indexes); if (num_other > 0) n_print (" +-- %d other objects\n", num_other); n_print ("\n"); } static int print_element_features (const gchar * element_name) { GstPluginFeature *feature; /* FIXME implement other pretty print function for these */ feature = gst_default_registry_find_feature (element_name, GST_TYPE_INDEX_FACTORY); if (feature) { n_print ("%s: an index\n", element_name); return 0; } feature = gst_default_registry_find_feature (element_name, GST_TYPE_TYPE_FIND_FACTORY); if (feature) { n_print ("%s: a typefind function\n", element_name); return 0; } return -1; } static int print_element_info (GstElementFactory * factory, gboolean print_names) { GstElement *element; gint maxlevel = 0; factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (GST_PLUGIN_FEATURE (factory))); if (!factory) { g_print ("element plugin couldn't be loaded\n"); return -1; } element = gst_element_factory_create (factory, NULL); if (!element) { g_print ("couldn't construct element for some reason\n"); return -1; } if (print_names) _name = g_strdup_printf ("%s: ", GST_PLUGIN_FEATURE (factory)->name); else _name = NULL; print_factory_details_info (factory); if (GST_PLUGIN_FEATURE (factory)->plugin_name) { GstPlugin *plugin; plugin = gst_registry_find_plugin (gst_registry_get_default (), GST_PLUGIN_FEATURE (factory)->plugin_name); if (plugin) { print_plugin_info (plugin); } } print_hierarchy (G_OBJECT_TYPE (element), 0, &maxlevel); print_interfaces (G_OBJECT_TYPE (element)); print_pad_templates_info (element, factory); print_element_flag_info (element); print_implementation_info (element); print_clocking_info (element); print_index_info (element); print_uri_handler_info (element); print_pad_info (element); print_element_properties_info (element); print_signal_info (element); print_children_info (element); gst_object_unref (element); gst_object_unref (factory); g_free (_name); return 0; } static void print_plugin_automatic_install_info_codecs (GstElementFactory * factory) { GstPadDirection direction; const gchar *type_name; const gchar *klass; const GList *static_templates, *l; GstCaps *caps = NULL; guint i, num; klass = gst_element_factory_get_klass (factory); g_return_if_fail (klass != NULL); if (strstr (klass, "Demuxer") || strstr (klass, "Decoder") || strstr (klass, "Depay") || strstr (klass, "Parser")) { type_name = "decoder"; direction = GST_PAD_SINK; } else if (strstr (klass, "Muxer") || strstr (klass, "Encoder") || strstr (klass, "Pay")) { type_name = "encoder"; direction = GST_PAD_SRC; } else { return; } /* decoder/demuxer sink pads should always be static and there should only * be one, the same applies to encoders/muxers and source pads */ static_templates = gst_element_factory_get_static_pad_templates (factory); for (l = static_templates; l != NULL; l = l->next) { GstStaticPadTemplate *tmpl = NULL; tmpl = (GstStaticPadTemplate *) l->data; if (tmpl->direction == direction) { caps = gst_static_pad_template_get_caps (tmpl); break; } } if (caps == NULL) { g_printerr ("Couldn't find static pad template for %s '%s'\n", type_name, GST_PLUGIN_FEATURE_NAME (factory)); return; } caps = gst_caps_make_writable (caps); num = gst_caps_get_size (caps); for (i = 0; i < num; ++i) { GstStructure *s; gchar *s_str; s = gst_caps_get_structure (caps, i); /* remove fields that are almost always just MIN-MAX of some sort * in order to make the caps look less messy */ gst_structure_remove_field (s, "pixel-aspect-ratio"); gst_structure_remove_field (s, "framerate"); gst_structure_remove_field (s, "channels"); gst_structure_remove_field (s, "width"); gst_structure_remove_field (s, "height"); gst_structure_remove_field (s, "rate"); gst_structure_remove_field (s, "depth"); gst_structure_remove_field (s, "clock-rate"); s_str = gst_structure_to_string (s); g_print ("%s-%s\n", type_name, s_str); g_free (s_str); } gst_caps_unref (caps); } static void print_plugin_automatic_install_info_protocols (GstElementFactory * factory) { gchar **protocols, **p; protocols = gst_element_factory_get_uri_protocols (factory); if (protocols != NULL && *protocols != NULL) { switch (gst_element_factory_get_uri_type (factory)) { case GST_URI_SINK: for (p = protocols; *p != NULL; ++p) g_print ("urisink-%s\n", *p); break; case GST_URI_SRC: for (p = protocols; *p != NULL; ++p) g_print ("urisource-%s\n", *p); break; default: break; } g_strfreev (protocols); } } static void print_plugin_automatic_install_info (GstPlugin * plugin) { const gchar *plugin_name; GList *features, *l; plugin_name = gst_plugin_get_name (plugin); /* not interested in typefind factories, only element factories */ features = gst_registry_get_feature_list (gst_registry_get_default (), GST_TYPE_ELEMENT_FACTORY); for (l = features; l != NULL; l = l->next) { GstPluginFeature *feature; feature = GST_PLUGIN_FEATURE (l->data); /* only interested in the ones that are in the plugin we just loaded */ if (g_str_equal (plugin_name, feature->plugin_name)) { GstElementFactory *factory; g_print ("element-%s\n", gst_plugin_feature_get_name (feature)); factory = GST_ELEMENT_FACTORY (feature); print_plugin_automatic_install_info_protocols (factory); print_plugin_automatic_install_info_codecs (factory); } } g_list_foreach (features, (GFunc) gst_object_unref, NULL); g_list_free (features); } int main (int argc, char *argv[]) { gboolean print_all = FALSE; gboolean plugin_name = FALSE; gboolean print_aii = FALSE; gboolean uri_handlers = FALSE; GOptionEntry options[] = { {"print-all", 'a', 0, G_OPTION_ARG_NONE, &print_all, N_("Print all elements"), NULL}, {"print-plugin-auto-install-info", '\0', 0, G_OPTION_ARG_NONE, &print_aii, N_("Print a machine-parsable list of features the specified plugin " "provides.\n " "Useful in connection with external automatic plugin " "installation mechanisms"), NULL}, {"plugin", '\0', 0, G_OPTION_ARG_NONE, &plugin_name, N_("List the plugin contents"), NULL}, {"uri-handlers", 'u', 0, G_OPTION_ARG_NONE, &uri_handlers, N_ ("Print supported URI schemes, with the elements that implement them"), NULL}, GST_TOOLS_GOPTION_VERSION, {NULL} }; GOptionContext *ctx; GError *err = NULL; #ifdef ENABLE_NLS bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); textdomain (GETTEXT_PACKAGE); #endif if (!g_thread_supported ()) g_thread_init (NULL); ctx = g_option_context_new ("[ELEMENT-NAME | PLUGIN-NAME]"); g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE); g_option_context_add_group (ctx, gst_init_get_option_group ()); if (!g_option_context_parse (ctx, &argc, &argv, &err)) { g_print ("Error initializing: %s\n", err->message); exit (1); } g_option_context_free (ctx); gst_tools_print_version ("gst-inspect"); if (print_all && argc > 1) { g_print ("-a requires no extra arguments\n"); return 1; } if (uri_handlers && argc > 1) { g_print ("-u requires no extra arguments\n"); exit (1); } /* if no arguments, print out list of elements */ if (uri_handlers) { print_all_uri_handlers (); } else if (argc == 1 || print_all) { print_element_list (print_all); } else { /* else we try to get a factory */ GstElementFactory *factory; GstPlugin *plugin; const char *arg = argv[argc - 1]; int retval; if (!plugin_name) { factory = gst_element_factory_find (arg); /* if there's a factory, print out the info */ if (factory) { retval = print_element_info (factory, print_all); gst_object_unref (factory); } else { retval = print_element_features (arg); } } else { retval = -1; } /* otherwise check if it's a plugin */ if (retval) { plugin = gst_default_registry_find_plugin (arg); /* if there is such a plugin, print out info */ if (plugin) { if (print_aii) { print_plugin_automatic_install_info (plugin); } else { print_plugin_info (plugin); print_plugin_features (plugin); } } else { GError *error = NULL; if (g_file_test (arg, G_FILE_TEST_EXISTS)) { plugin = gst_plugin_load_file (arg, &error); if (plugin) { if (print_aii) { print_plugin_automatic_install_info (plugin); } else { print_plugin_info (plugin); print_plugin_features (plugin); } } else { g_print (_("Could not load plugin file: %s\n"), error->message); g_error_free (error); return -1; } } else { g_print (_("No such element or plugin '%s'\n"), arg); return -1; } } } } return 0; }