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gstreamer/tools/gst-inspect.c
David Schleef c27e70d3c1 REQUIREMENTS: Add bison and flex. 
Original commit message from CVS:
reviewed by: <delete if not using a buddy>
* REQUIREMENTS: Add bison and flex.
* configure.ac: Fix comment about bison.
* docs/random/ds/0.9-suggested-changes: yer ma
* tools/gst-inspect.c: (print_element_info):  Fix warning.
2004-03-06 04:54:06 +00:00

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2004 Thomas Vander Stichele <thomas@apestaart.org>
*
* 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 <gst/gst.h>
#include <gst/control/control.h>
#include "gst/gst-i18n-app.h"
#include <string.h>
#include <locale.h>
static void
print_caps (const GstCaps *caps, const gchar *pfx)
{
char *s, *tmp;
char **v;
s = gst_caps_to_string (caps);
tmp = g_strdup_printf ("\n %s", pfx);
v = g_strsplit (s, ", ", -1);
g_free (s);
s = g_strjoinv (tmp, v);
g_strfreev (v);
g_free (tmp);
tmp = g_strdup_printf ("\n%s", pfx);
v = g_strsplit (s, "; ", -1);
g_free (s);
s = g_strjoinv (tmp, v);
g_free (tmp);
g_strfreev (v);
g_print ("%s%s\n", pfx, s);
g_free(s);
}
static void
print_formats (const GstFormat *formats)
{
while (formats && *formats) {
const GstFormatDefinition *definition;
definition = gst_format_get_details (*formats);
if (definition)
g_print ("\t\t(%d):\t%s (%s)\n", *formats,
definition->nick, definition->description);
else
g_print ("\t\t(%d):\tUnknown format\n", *formats);
formats++;
}
}
static void
print_query_types (const GstQueryType *types)
{
while (types && *types) {
const GstQueryTypeDefinition *definition;
definition = gst_query_type_get_details (*types);
if (definition)
g_print ("\t\t(%d):\t%s (%s)\n", *types,
definition->nick, definition->description);
else
g_print ("\t\t(%d):\tUnknown query format\n", *types);
types++;
}
}
static void
print_event_masks (const GstEventMask *masks)
{
#ifndef GST_DISABLE_ENUMTYPES
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 void
output_hierarchy (GType type, gint level, gint *maxlevel)
{
GType parent;
gint i;
parent = g_type_parent (type);
*maxlevel = *maxlevel + 1;
level++;
if (parent)
output_hierarchy (parent, level, maxlevel);
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)
g_print ("\n");
}
static void
print_element_properties (GstElement *element)
{
GParamSpec **property_specs;
gint num_properties,i;
gboolean readable;
const char *string_val;
property_specs = g_object_class_list_properties
(G_OBJECT_GET_CLASS (element), &num_properties);
g_print("\nElement 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);
if (param->flags & G_PARAM_READABLE) {
g_object_get_property (G_OBJECT (element), param->name, &value);
readable = TRUE;
}
g_print(" %-20s: %s\n", g_param_spec_get_name (param),
g_param_spec_get_blurb (param));
switch (G_VALUE_TYPE (&value)) {
case G_TYPE_STRING:
string_val = g_value_get_string (&value);
g_print ("%-23.23s String. ", "");
if (readable) {
if (string_val == NULL)
g_print ("(Default \"\")");
else
g_print ("(Default \"%s\")", g_value_get_string (&value));
}
break;
case G_TYPE_BOOLEAN:
g_print ("%-23.23s Boolean. ", "");
if (readable) g_print ("(Default %s)", (g_value_get_boolean (&value) ? "true" : "false"));
break;
case G_TYPE_ULONG:
{
GParamSpecULong *pulong = G_PARAM_SPEC_ULONG (param);
g_print("%-23.23s Unsigned Long. ", "");
if (readable) g_print("Range: %lu - %lu (Default %lu)",
pulong->minimum, pulong->maximum, g_value_get_ulong (&value));
break;
}
case G_TYPE_LONG:
{
GParamSpecLong *plong = G_PARAM_SPEC_LONG (param);
g_print("%-23.23s Long. ", "");
if (readable) g_print("Range: %ld - %ld (Default %ld)",
plong->minimum, plong->maximum, g_value_get_long (&value));
break;
}
case G_TYPE_UINT:
{
GParamSpecUInt *puint = G_PARAM_SPEC_UINT (param);
g_print("%-23.23s Unsigned Integer. ", "");
if (readable) g_print("Range: %u - %u (Default %u)",
puint->minimum, puint->maximum, g_value_get_uint (&value));
break;
}
case G_TYPE_INT:
{
GParamSpecInt *pint = G_PARAM_SPEC_INT (param);
g_print("%-23.23s Integer. ", "");
if (readable) g_print("Range: %d - %d (Default %d)",
pint->minimum, pint->maximum, g_value_get_int (&value));
break;
}
case G_TYPE_UINT64:
{
GParamSpecUInt64 *puint64 = G_PARAM_SPEC_UINT64 (param);
g_print("%-23.23s Unsigned Integer64. ", "");
if (readable) g_print("Range: %" G_GUINT64_FORMAT " - %"
G_GUINT64_FORMAT " (Default %" G_GUINT64_FORMAT ")",
puint64->minimum, puint64->maximum,
g_value_get_uint64 (&value));
break;
}
case G_TYPE_INT64:
{
GParamSpecInt64 *pint64 = G_PARAM_SPEC_INT64 (param);
g_print("%-23.23s Integer64. ", "");
if (readable) g_print("Range: %" G_GINT64_FORMAT " - %" G_GINT64_FORMAT " (Default %" G_GINT64_FORMAT ")", pint64->minimum,
pint64->maximum, g_value_get_int64 (&value));
break;
}
case G_TYPE_FLOAT:
{
GParamSpecFloat *pfloat = G_PARAM_SPEC_FLOAT (param);
g_print("%-23.23s Float. Default: %-8.8s %15.7g\n", "", "",
g_value_get_float (&value));
g_print("%-23.23s Range: %15.7g - %15.7g", "",
pfloat->minimum, pfloat->maximum);
break;
}
case G_TYPE_DOUBLE:
{
GParamSpecDouble *pdouble = G_PARAM_SPEC_DOUBLE (param);
g_print("%-23.23s Double. Default: %-8.8s %15.7g\n", "", "",
g_value_get_double (&value));
g_print("%-23.23s Range: %15.7g - %15.7g", "",
pdouble->minimum, pdouble->maximum);
break;
}
default:
if (param->value_type == GST_TYPE_URI) {
g_print("%-23.23s URI", "");
}
if (param->value_type == GST_TYPE_CAPS) {
const GstCaps *caps = gst_value_get_caps (&value);
if (!caps)
g_print("%-23.23s Caps (NULL)", "");
else {
print_caps (caps, " ");
}
}
else if (G_IS_PARAM_SPEC_ENUM (param)) {
GEnumValue *values;
guint j = 0;
gint enum_value;
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)
break;
j++;
}
g_print ("%-23.23s Enum \"%s\" (default %d, \"%s\")", "",
g_type_name (G_VALUE_TYPE (&value)),
enum_value, values[j].value_nick);
j = 0;
while (values[j].value_name) {
g_print("\n%-23.23s (%d): \t%s", "",
values[j].value, values[j].value_nick);
j++;
}
/* g_type_class_unref (ec); */
}
else if (G_IS_PARAM_SPEC_FLAGS (param)) {
GFlagsValue *values;
guint j = 0;
gint flags_value;
GString *flags = NULL;
values = G_FLAGS_CLASS (g_type_class_ref (param->value_type))->values;
flags_value = g_value_get_flags (&value);
while (values[j].value_name) {
if (values[j].value & flags_value) {
if (flags) {
g_string_append_printf (flags, " | %s", values[j].value_nick);
}
else {
flags = g_string_new (values[j].value_nick);
}
}
j++;
}
g_print("%-23.23s Flags \"%s\" (default %d, \"%s\")", "",
g_type_name (G_VALUE_TYPE (&value)),
flags_value, (flags ? flags->str : "(none)"));
j = 0;
while (values[j].value_name) {
g_print("\n%-23.23s (%d): \t%s", "",
values[j].value, values[j].value_nick);
j++;
}
if (flags)
g_string_free (flags, TRUE);
}
else if (G_IS_PARAM_SPEC_OBJECT (param)) {
g_print("%-23.23s Object of type \"%s\"", "",
g_type_name(param->value_type));
}
else {
g_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");
}
if (num_properties == 0)
g_print (" none\n");
}
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 gint
print_element_info (GstElementFactory *factory)
{
GstElement *element;
GstObjectClass *gstobject_class;
GstElementClass *gstelement_class;
GstPad *pad;
GstRealPad *realpad;
GstPadTemplate *padtemplate;
GList *children;
GstElement *child;
gboolean have_flags;
gint maxlevel = 0;
element = gst_element_factory_create (factory, "element");
if (!element) {
g_print ("couldn't construct element for some reason\n");
return -1;
}
gstobject_class = GST_OBJECT_CLASS (G_OBJECT_GET_CLASS (element));
gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element));
g_print ("Factory Details:\n");
g_print (" Long name:\t%s\n", factory->details.longname);
g_print (" Class:\t%s\n", factory->details.klass);
g_print (" Description:\t%s\n", factory->details.description);
g_print (" Author(s):\t%s\n", factory->details.author);
g_print (" Rank:\t\t%s\n", get_rank_name(GST_PLUGIN_FEATURE(factory)->rank));
g_print ("\n");
output_hierarchy (G_OBJECT_TYPE (element), 0, &maxlevel);
g_print ("Pad Templates:\n");
if (factory->numpadtemplates) {
const GList *pads;
pads = factory->padtemplates;
while (pads) {
padtemplate = (GstPadTemplate*)(pads->data);
pads = g_list_next(pads);
if (padtemplate->direction == GST_PAD_SRC)
g_print (" SRC template: '%s'\n", padtemplate->name_template);
else if (padtemplate->direction == GST_PAD_SINK)
g_print (" SINK template: '%s'\n", padtemplate->name_template);
else
g_print (" UNKNOWN!!! template: '%s'\n", padtemplate->name_template);
if (padtemplate->presence == GST_PAD_ALWAYS)
g_print (" Availability: Always\n");
else if (padtemplate->presence == GST_PAD_SOMETIMES)
g_print (" Availability: Sometimes\n");
else if (padtemplate->presence == GST_PAD_REQUEST) {
g_print (" Availability: On request\n");
g_print (" Has request_new_pad() function: %s\n",
GST_DEBUG_FUNCPTR_NAME (gstelement_class->request_new_pad));
}
else
g_print (" Availability: UNKNOWN!!!\n");
if (padtemplate->caps) {
g_print (" Capabilities:\n");
print_caps (padtemplate->caps, " ");
}
g_print ("\n");
}
} else
g_print (" none\n");
have_flags = FALSE;
g_print ("\nElement Flags:\n");
if (GST_FLAG_IS_SET (element, GST_ELEMENT_COMPLEX)) {
g_print (" GST_ELEMENT_COMPLEX\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_ELEMENT_DECOUPLED)) {
g_print (" GST_ELEMENT_DECOUPLED\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_ELEMENT_THREAD_SUGGESTED)) {
g_print (" GST_ELEMENT_THREADSUGGESTED\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_ELEMENT_EVENT_AWARE)) {
g_print(" GST_ELEMENT_EVENT_AWARE\n");
have_flags = TRUE;
}
if (!have_flags)
g_print(" no flags set\n");
if (GST_IS_BIN (element)) {
g_print ("\nBin Flags:\n");
if (GST_FLAG_IS_SET (element, GST_BIN_FLAG_MANAGER)) {
g_print (" GST_BIN_FLAG_MANAGER\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_BIN_SELF_SCHEDULABLE)) {
g_print (" GST_BIN_SELF_SCHEDULABLE\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_BIN_FLAG_PREFER_COTHREADS)) {
g_print (" GST_BIN_FLAG_PREFER_COTHREADS\n");
have_flags = TRUE;
}
if (!have_flags)
g_print (" no flags set\n");
}
g_print ("\nElement Implementation:\n");
if (element->loopfunc)
g_print (" loopfunc()-based element: %s\n",
GST_DEBUG_FUNCPTR_NAME (element->loopfunc));
else
g_print (" No loopfunc(), must be chain-based or not configured yet\n");
g_print (" Has change_state() function: %s\n",
GST_DEBUG_FUNCPTR_NAME (gstelement_class->change_state));
#ifndef GST_DISABLE_LOADSAVE
g_print (" Has custom save_thyself() function: %s\n",
GST_DEBUG_FUNCPTR_NAME (gstobject_class->save_thyself));
g_print (" Has custom restore_thyself() function: %s\n",
GST_DEBUG_FUNCPTR_NAME (gstobject_class->restore_thyself));
#endif
have_flags = FALSE;
g_print ("\nClocking Interaction:\n");
if (gst_element_requires_clock (element)) {
g_print (" element requires a clock\n");
have_flags = TRUE;
}
if (gst_element_provides_clock (element)) {
GstClock *clock;
clock = gst_element_get_clock (element);
if (clock)
g_print (" element provides a clock: %s\n", GST_OBJECT_NAME(clock));
else
g_print (" element is supposed to provide a clock but returned NULL\n");
have_flags = TRUE;
}
if (!have_flags) {
g_print (" none\n");
}
#ifndef GST_DISABLE_INDEX
g_print ("\nIndexing capabilities:\n");
if (gst_element_is_indexable (element)) {
g_print (" element can do indexing\n");
}
else {
g_print (" none\n");
}
#endif
g_print ("\nPads:\n");
if (element->numpads) {
const GList *pads;
pads = gst_element_get_pad_list (element);
while (pads) {
pad = GST_PAD (pads->data);
pads = g_list_next (pads);
realpad = GST_PAD_REALIZE (pad);
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
g_print (" SRC: '%s'", gst_pad_get_name (pad));
else if (gst_pad_get_direction (pad) == GST_PAD_SINK)
g_print (" SINK: '%s'", gst_pad_get_name (pad));
else
g_print (" UNKNOWN!!!: '%s'\n", gst_pad_get_name (pad));
if (GST_IS_GHOST_PAD (pad))
g_print (", ghost of real pad %s:%s\n", GST_DEBUG_PAD_NAME (realpad));
else
g_print ("\n");
g_print (" Implementation:\n");
if (realpad->chainfunc)
g_print (" Has chainfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->chainfunc));
if (realpad->getfunc)
g_print (" Has getfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->getfunc));
if (realpad->formatsfunc != gst_pad_get_formats_default) {
g_print (" Supports seeking/conversion/query formats:\n");
print_formats (gst_pad_get_formats (GST_PAD (realpad)));
}
if (realpad->convertfunc != gst_pad_convert_default)
g_print (" Has custom convertfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->convertfunc));
if (realpad->eventfunc != gst_pad_event_default)
g_print (" Has custom eventfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->eventfunc));
if (realpad->eventmaskfunc != gst_pad_get_event_masks_default) {
g_print (" Provides event masks:\n");
print_event_masks (gst_pad_get_event_masks (GST_PAD (realpad)));
}
if (realpad->queryfunc != gst_pad_query_default)
g_print (" Has custom queryfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->queryfunc));
if (realpad->querytypefunc != gst_pad_get_query_types_default) {
g_print (" Provides query types:\n");
print_query_types (gst_pad_get_query_types (GST_PAD (realpad)));
}
if (realpad->intlinkfunc != gst_pad_get_internal_links_default)
g_print (" Has custom intconnfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME(realpad->intlinkfunc));
if (realpad->bufferallocfunc)
g_print (" Has bufferallocfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME(realpad->bufferallocfunc));
if (pad->padtemplate)
g_print (" Pad Template: '%s'\n",
pad->padtemplate->name_template);
if (realpad->caps) {
g_print (" Capabilities:\n");
print_caps (realpad->caps, " ");
}
}
} else
g_print (" none\n");
print_element_properties (element);
/* Dynamic Parameters block */
{
GstDParamManager* dpman;
GParamSpec** specs;
gint x;
g_print ("\nDynamic Parameters:\n");
if((dpman = gst_dpman_get_manager (element))) {
specs = gst_dpman_list_dparam_specs (dpman);
for (x = 0; specs[x] != NULL; x++) {
g_print (" %-20.20s: ", g_param_spec_get_name (specs[x]));
switch (G_PARAM_SPEC_VALUE_TYPE (specs[x])) {
case G_TYPE_INT64:
g_print ("64 Bit Integer (Default %" G_GINT64_FORMAT ", Range %"
G_GINT64_FORMAT " -> %" G_GINT64_FORMAT ")",
((GParamSpecInt64 *) specs[x])->default_value,
((GParamSpecInt64 *) specs[x])->minimum,
((GParamSpecInt64 *) specs[x])->maximum);
break;
case G_TYPE_INT:
g_print ("Integer (Default %d, Range %d -> %d)",
((GParamSpecInt *) specs[x])->default_value,
((GParamSpecInt *) specs[x])->minimum,
((GParamSpecInt *) specs[x])->maximum);
break;
case G_TYPE_FLOAT:
g_print ("Float. Default: %-8.8s %15.7g\n", "",
((GParamSpecFloat *) specs[x])->default_value);
g_print ("%-23.23s Range: %15.7g - %15.7g", "",
((GParamSpecFloat *) specs[x])->minimum,
((GParamSpecFloat *) specs[x])->maximum);
break;
case G_TYPE_DOUBLE:
g_print ("Double. Default: %-8.8s %15.7g\n", "",
((GParamSpecDouble *) specs[x])->default_value);
g_print ("%-23.23s Range: %15.7g - %15.7g", "",
((GParamSpecDouble *) specs[x])->minimum,
((GParamSpecDouble *) specs[x])->maximum);
break;
default: g_print ("unknown %ld", G_PARAM_SPEC_VALUE_TYPE (specs[x]));
}
g_print ("\n");
}
g_free (specs);
}
else {
g_print (" none\n");
}
}
/* Signals/Actions Block */
{
guint *signals;
guint nsignals;
gint i, k;
GSignalQuery *query;
GType type;
for (k = 0; k < 2; k++) {
gint counted = 0;
if (k == 0)
g_print ("\nElement Signals:\n");
else
g_print ("\nElement Actions:\n");
for(type = G_OBJECT_TYPE(element); type; type = g_type_parent(type)){
signals = g_signal_list_ids (type, &nsignals);
for (i = 0; i < nsignals; i++) {
gint n_params;
GType return_type;
const GType *param_types;
gint j;
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))) {
n_params = query->n_params;
return_type = query->return_type;
param_types = query->param_types;
g_print (" \"%s\" :\t %s user_function (%s* object",
query->signal_name, g_type_name (return_type),
g_type_name (type));
for (j = 0; j < n_params; j++) {
g_print (",\n \t\t\t\t%s arg%d", g_type_name(param_types[j]), j);
}
if (k == 0)
g_print (",\n \t\t\t\tgpointer user_data);\n");
else
g_print (");\n");
counted++;
}
g_free (query);
}
}
if (counted == 0) g_print (" none\n");
}
}
/* for compound elements */
if (GST_IS_BIN (element)) {
g_print ("\nChildren:\n");
children = (GList *) gst_bin_get_list (GST_BIN (element));
if (!children)
g_print (" none\n");
else {
while (children) {
child = GST_ELEMENT (children->data);
children = g_list_next (children);
g_print (" %s\n", GST_ELEMENT_NAME (child));
}
}
}
return 0;
}
static void
print_element_list (void)
{
GList *plugins;
plugins = gst_registry_pool_plugin_list();
while (plugins) {
GList *features;
GstPlugin *plugin;
plugin = (GstPlugin*)(plugins->data);
plugins = g_list_next (plugins);
features = gst_plugin_get_feature_list (plugin);
while (features) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (features->data);
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
g_print ("%s: %s: %s\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (factory) ,factory->details.longname);
}
#ifndef GST_DISABLE_INDEX
else if (GST_IS_INDEX_FACTORY (feature)) {
GstIndexFactory *factory;
factory = GST_INDEX_FACTORY (feature);
g_print ("%s: %s: %s\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (factory), factory->longdesc);
}
#endif
else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
GstTypeFindFactory *factory;
factory = GST_TYPE_FIND_FACTORY (feature);
g_print ("%s: %s: ", plugin->desc.name, gst_plugin_feature_get_name (feature));
if (factory->extensions) {
guint i = 0;
while (factory->extensions[i]) {
g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]);
i++;
}
g_print ("\n");
} else {
g_print ("no extensions\n");
}
}
else if (GST_IS_SCHEDULER_FACTORY (feature)) {
GstSchedulerFactory *factory;
factory = GST_SCHEDULER_FACTORY (feature);
g_print ("%s: %s: %s\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (factory), factory->longdesc);
}
else {
g_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);
}
}
}
static void
print_plugin_info (GstPlugin *plugin)
{
GList *features;
gint num_features = 0;
gint num_elements = 0;
gint num_types = 0;
gint num_schedulers = 0;
gint num_indexes = 0;
gint num_other = 0;
g_print ("Plugin Details:\n");
g_print (" Name:\t\t%s\n", plugin->desc.name);
g_print (" Description:\t%s\n", plugin->desc.description);
g_print (" Filename:\t%s\n", plugin->filename);
g_print (" Version:\t%s\n", plugin->desc.version);
g_print (" License:\t%s\n", plugin->desc.license);
g_print (" Package:\t%s\n", plugin->desc.package);
g_print (" Origin URL:\t%s\n", plugin->desc.origin);
g_print ("\n");
features = gst_plugin_get_feature_list (plugin);
while (features) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (features->data);
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory;
factory = GST_ELEMENT_FACTORY (feature);
g_print (" %s: %s\n", GST_OBJECT_NAME (factory),
factory->details.longname);
num_elements++;
}
#ifndef GST_DISABLE_INDEX
else if (GST_IS_INDEX_FACTORY (feature)) {
GstIndexFactory *factory;
factory = GST_INDEX_FACTORY (feature);
g_print (" %s: %s\n", GST_OBJECT_NAME (factory), factory->longdesc);
num_indexes++;
}
#endif
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 type: ", plugin->desc.name);
while (factory->extensions[i]) {
g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]);
i++;
}
} else
g_print ("%s type: N/A\n", plugin->desc.name);
num_types++;
}
else if (GST_IS_SCHEDULER_FACTORY (feature)) {
GstSchedulerFactory *factory;
factory = GST_SCHEDULER_FACTORY (feature);
g_print (" %s: %s\n", GST_OBJECT_NAME (factory), factory->longdesc);
num_schedulers++;
}
else {
g_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);
}
g_print ("\n %d features:\n", num_features);
if (num_elements > 0)
g_print (" +-- %d elements\n", num_elements);
if (num_types > 0)
g_print (" +-- %d types\n", num_types);
if (num_schedulers > 0)
g_print (" +-- %d schedulers\n", num_schedulers);
if (num_indexes > 0)
g_print (" +-- %d indexes\n", num_indexes);
if (num_other > 0)
g_print (" +-- %d other objects\n", num_other);
g_print ("\n");
}
int
main (int argc, char *argv[])
{
GstElementFactory *factory;
GstPlugin *plugin;
gchar *so;
struct poptOption options[] = {
{"gst-inspect-plugin", 'p', POPT_ARG_STRING|POPT_ARGFLAG_STRIP, NULL, 0,
N_("Show plugin details"), NULL},
{"gst-inspect-scheduler", 's', POPT_ARG_STRING|POPT_ARGFLAG_STRIP, NULL, 0,
N_("Show scheduler details"), NULL},
POPT_TABLEEND
};
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
gst_init_with_popt_table (&argc, &argv, options);
gst_control_init (&argc, &argv);
/* if no arguments, print out list of elements */
if (argc == 1) {
print_element_list();
/* else we try to get a factory */
} else {
/* first check for help */
if (strstr (argv[1], "-help")) {
g_print ("Usage: %s\t\t\tList all registered elements\n",argv[0]);
g_print (" %s element-name\tShow element details\n",argv[0]);
g_print (" %s plugin-name[.so]\tShow information about plugin\n",
argv[0]);
return 0;
}
/* only search for a factory if there's not a '.so' */
if (! strstr (argv[1], ".so")) {
factory = gst_element_factory_find (argv[1]);
/* if there's a factory, print out the info */
if (factory)
return print_element_info (factory);
else {
GstPluginFeature* feature;
/* FIXME implement other pretty print function for these */
feature = gst_registry_pool_find_feature (argv[1],
GST_TYPE_SCHEDULER_FACTORY);
if (feature) {
g_print ("%s: a scheduler\n", argv[1]);
return 0;
}
#ifndef GST_DISABLE_INDEX
feature = gst_registry_pool_find_feature (argv[1],
GST_TYPE_INDEX_FACTORY);
if (feature) {
g_print ("%s: an index\n", argv[1]);
return 0;
}
#endif
feature = gst_registry_pool_find_feature (argv[1],
GST_TYPE_TYPE_FIND_FACTORY);
if (feature) {
g_print ("%s: a typefind function\n", argv[1]);
return 0;
}
#ifndef GST_DISABLE_URI
feature = gst_registry_pool_find_feature (argv[1],
GST_TYPE_URI_HANDLER);
if (feature) {
g_print ("%s: an uri handler\n", argv[1]);
return 0;
}
#endif
}
} else {
/* strip the .so */
so = strstr(argv[1],".so");
so[0] = '\0';
}
/* otherwise assume it's a plugin */
plugin = gst_registry_pool_find_plugin (argv[1]);
/* if there is such a plugin, print out info */
if (plugin) {
print_plugin_info (plugin);
} else {
g_print("no such element or plugin '%s'\n", argv[1]);
return -1;
}
}
return 0;
}
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