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gstreamer/tools/gst-inspect.c
Benjamin Otte a9d1a493a7 Fixes for -Wwrite-strings 
This changes some APIs in compatible ways:
- Some functions now take "const char *" arguments, not "char *"
- Some structs now have "conts char *" members, not "char *"
The changes may cause warnings when compiling with the right warning
flags. You've been warned.

Also adds -Wwrite-strings as a warning flag in configure.ac.

https://bugzilla.gnome.org/show_bug.cgi?id=611692
2010-03-10 20:50:10 +01:00

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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/controller/gstcontroller.h>
#include "tools.h"
#include <string.h>
#include <locale.h>
#include <glib/gprintf.h>
static char *_name = NULL;
static int print_element_info (GstElementFactory * factory,
gboolean print_names);
static void
n_print (const char *format, ...)
{
va_list args;
if (_name)
g_print ("%s", _name);
va_start (args, format);
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 const 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->iterintlinkfunc != gst_pad_iterate_internal_links_default)
n_print (" Has custom iterintlinkfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (pad->iterintlinkfunc));
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_blacklist (void)
{
GList *plugins, *cur;
gint count = 0;
g_print ("%s\n", _("Blacklisted files:"));
plugins = gst_default_registry_get_plugin_list ();
for (cur = plugins; cur != NULL; cur = g_list_next (cur)) {
GstPlugin *plugin = (GstPlugin *) (cur->data);
if (plugin->flags & GST_PLUGIN_FLAG_BLACKLISTED) {
g_print (" %s\n", plugin->desc.name);
count++;
}
}
g_print ("\n");
g_print (_("Total count: "));
g_print (ngettext ("%d blacklisted file", "%d blacklisted files", count),
count);
g_print ("\n");
gst_plugin_list_free (plugins);
}
static void
print_element_list (gboolean print_all)
{
int plugincount = 0, featurecount = 0, blacklistcount = 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++;
if (plugin->flags & GST_PLUGIN_FLAG_BLACKLISTED) {
blacklistcount++;
continue;
}
orig_features = features =
gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
plugin->desc.name);
while (features) {
GstPluginFeature *feature;
if (G_UNLIKELY (features->data == NULL))
goto next;
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)));
}
next:
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);
if (blacklistcount) {
g_print (" (");
g_print (ngettext ("%d blacklist entry", "%d blacklist entries",
blacklistcount), blacklistcount);
g_print (" not shown)");
}
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_typefinders = 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_typefinders++;
} else if (feature) {
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_typefinders > 0)
n_print (" +-- %d typefinders\n", num_typefinders);
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);
}
static void
print_all_plugin_automatic_install_info (void)
{
GList *plugins, *orig_plugins;
orig_plugins = plugins = gst_default_registry_get_plugin_list ();
while (plugins) {
GstPlugin *plugin;
plugin = (GstPlugin *) (plugins->data);
plugins = g_list_next (plugins);
print_plugin_automatic_install_info (plugin);
}
gst_plugin_list_free (orig_plugins);
}
int
main (int argc, char *argv[])
{
gboolean print_all = FALSE;
gboolean do_print_blacklist = FALSE;
gboolean plugin_name = FALSE;
gboolean print_aii = FALSE;
gboolean uri_handlers = FALSE;
#ifndef GST_DISABLE_OPTION_PARSING
GOptionEntry options[] = {
{"print-all", 'a', 0, G_OPTION_ARG_NONE, &print_all,
N_("Print all elements"), NULL},
{"print-blacklist", 'b', 0, G_OPTION_ARG_NONE, &do_print_blacklist,
N_("Print list of blacklisted files"), 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 "
"or all plugins provide.\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;
#endif
#ifdef ENABLE_NLS
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
#endif
g_thread_init (NULL);
gst_tools_set_prgname ("gst-inspect");
#ifndef GST_DISABLE_OPTION_PARSING
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);
#else
gst_init (&argc, &argv);
#endif
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) {
if (do_print_blacklist)
print_blacklist ();
else {
if (print_aii)
print_all_plugin_automatic_install_info ();
else
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;
}
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