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gstreamer/tools/gst-inspect.c
Steve Lhomme 0c00362c59 tools/gst-inspect.c fix a possible use of NULL string 
Original commit message from CVS:
* tools/gst-inspect.c
fix a possible use of NULL string
2005-09-08 12:15:44 +00:00

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C
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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.
*/
#include "tools.h"
#include <gst/control/control.h>
#include <string.h>
#include <locale.h>
#include <glib/gprintf.h>
static char *_name;
static int print_element_info (GstElementFactory * factory,
gboolean print_names);
void
n_print (const char *format, ...)
{
va_list args;
gint retval;
if (_name)
g_print (_name);
va_start (args, format);
retval = g_vprintf (format, args);
va_end (args);
}
static gboolean
print_field (GQuark field, 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);
}
}
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++;
}
}
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++;
}
}
#ifndef GST_DISABLE_ENUMTYPES
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++;
}
}
#else
static void
print_event_masks (const GstEventMask * 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 (_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) {
g_print ("Implemented Interfaces:\n");
iface = ifaces;
while (*iface) {
g_print (" %s\n", g_type_name (*iface));
iface++;
}
g_print ("\n");
g_free (ifaces);
}
}
}
static void
print_element_properties_info (GstElement * element)
{
GParamSpec **property_specs;
guint num_properties, i;
gboolean readable;
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);
if (param->flags & G_PARAM_READABLE) {
g_object_get_property (G_OBJECT (element), param->name, &value);
readable = TRUE;
}
n_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:{
GParamSpecString *pstring = G_PARAM_SPEC_STRING (param);
n_print ("%-23.23s String. ", "");
g_print ("Default: \"%s\" ",
pstring->default_value ? pstring->default_value : "");
if (readable) {
const char *string_val = g_value_get_string (&value);
if (string_val == NULL)
g_print ("Current: \"\"");
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\n", 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\n", g_value_get_double (&value));
break;
}
default:
if (param->value_type == GST_TYPE_URI) {
n_print ("%-23.23s URI", "");
}
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)) {
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++;
}
n_print ("%-23.23s Enum \"%s\" (Current %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%s%-23.23s (%d): \t%s", "",
_name, 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++;
}
n_print ("%-23.23s Flags \"%s\" (Current: %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%s%-23.23s (%d): \t%s", "",
_name, values[j].value, values[j].value_nick);
j++;
}
if (flags)
g_string_free (flags, TRUE);
} else if (G_IS_PARAM_SPEC_OBJECT (param)) {
n_print ("%-23.23s Object 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");
}
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;
GstPadTemplate *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->padtemplates;
while (pads) {
padtemplate = (GstPadTemplate *) (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->caps) {
n_print (" Capabilities:\n");
print_caps (padtemplate->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 (GST_FLAG_IS_SET (element, GST_ELEMENT_COMPLEX)) {
n_print (" GST_ELEMENT_COMPLEX\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_ELEMENT_DECOUPLED)) {
n_print (" GST_ELEMENT_DECOUPLED\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_ELEMENT_THREAD_SUGGESTED)) {
n_print (" GST_ELEMENT_THREADSUGGESTED\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_ELEMENT_EVENT_AWARE)) {
n_print (" GST_ELEMENT_EVENT_AWARE\n");
have_flags = TRUE;
}
if (!have_flags)
n_print (" no flags set\n");
if (GST_IS_BIN (element)) {
n_print ("\n");
n_print ("Bin Flags:\n");
if (GST_FLAG_IS_SET (element, GST_BIN_FLAG_MANAGER)) {
n_print (" GST_BIN_FLAG_MANAGER\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_BIN_SELF_SCHEDULABLE)) {
n_print (" GST_BIN_SELF_SCHEDULABLE\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET (element, GST_BIN_FLAG_PREFER_COTHREADS)) {
n_print (" GST_BIN_FLAG_PREFER_COTHREADS\n");
have_flags = TRUE;
}
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");
if (element->loopfunc)
n_print (" loopfunc()-based element: %s\n",
GST_DEBUG_FUNCPTR_NAME (element->loopfunc));
else
n_print (" No loopfunc(), must be chain-based or not configured yet\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");
}
}
#ifndef GST_DISABLE_INDEX
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");
}
}
#else
static void
print_index_info (GstElement * element)
{
}
#endif
static void
print_pad_info (GstElement * element)
{
const GList *pads;
GstPad *pad;
GstRealPad *realpad;
n_print ("\n");
n_print ("Pads:\n");
if (!element->numpads) {
n_print (" none\n");
return;
}
pads = gst_element_get_pad_list (element);
while (pads) {
pad = GST_PAD (pads->data);
pads = g_list_next (pads);
realpad = GST_PAD_REALIZE (pad);
n_print ("");
if (gst_pad_get_direction (GST_PAD (realpad)) == GST_PAD_SRC)
g_print (" SRC: '%s'", gst_pad_get_name (pad));
else if (gst_pad_get_direction (GST_PAD (realpad)) == GST_PAD_SINK)
g_print (" SINK: '%s'", gst_pad_get_name (pad));
else
g_print (" UNKNOWN!!!: '%s'", 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");
n_print (" Implementation:\n");
if (realpad->chainfunc)
n_print (" Has chainfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->chainfunc));
if (realpad->getfunc)
n_print (" Has getfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->getfunc));
if (realpad->formatsfunc != gst_pad_get_formats_default) {
n_print (" Supports seeking/conversion/query formats:\n");
print_formats (gst_pad_get_formats (GST_PAD (realpad)));
}
if (realpad->convertfunc != gst_pad_convert_default)
n_print (" Has custom convertfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->convertfunc));
if (realpad->eventfunc != gst_pad_event_default)
n_print (" Has custom eventfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->eventfunc));
if (realpad->eventmaskfunc != gst_pad_get_event_masks_default) {
n_print (" Provides event masks:\n");
print_event_masks (gst_pad_get_event_masks (GST_PAD (realpad)));
}
if (realpad->queryfunc != gst_pad_query_default)
n_print (" Has custom queryfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->queryfunc));
if (realpad->querytypefunc != gst_pad_get_query_types_default) {
n_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)
n_print (" Has custom intconnfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->intlinkfunc));
if (realpad->bufferallocfunc)
n_print (" Has bufferallocfunc(): %s\n",
GST_DEBUG_FUNCPTR_NAME (realpad->bufferallocfunc));
if (pad->padtemplate)
n_print (" Pad Template: '%s'\n", pad->padtemplate->name_template);
if (realpad->caps) {
n_print (" Capabilities:\n");
print_caps (realpad->caps, " ");
}
}
}
static void
print_dynamic_parameters_info (GstElement * element)
{
GstDParamManager *dpman;
GParamSpec **specs = NULL;
gint x;
if ((dpman = gst_dpman_get_manager (element))) {
specs = gst_dpman_list_dparam_specs (dpman);
}
if (specs && specs[0] != NULL) {
n_print ("\n");
n_print ("Dynamic Parameters:\n");
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);
}
}
#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);
}
}
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 (G_TYPE_IS_FUNDAMENTAL (query->param_types[j])) {
g_print (",\n%s%s%s arg%d", _name, indent,
g_type_name (query->param_types[j]), j);
} else {
g_print (",\n%s%s%s* arg%d", _name, indent,
g_type_name (query->param_types[j]), j);
}
}
if (k == 0)
g_print (",\n%s%sgpointer user_data);\n", _name, 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_get_list (GST_BIN (element));
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)
{
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);
if (print_all)
print_element_info (factory, TRUE);
else
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);
if (!print_all)
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);
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 (GST_IS_SCHEDULER_FACTORY (feature)) {
GstSchedulerFactory *factory;
factory = GST_SCHEDULER_FACTORY (feature);
if (!print_all)
g_print ("%s: %s: %s\n", plugin->desc.name,
GST_PLUGIN_FEATURE_NAME (factory), factory->longdesc);
} 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);
}
}
}
static void
print_plugin_info (GstPlugin * plugin)
{
n_print ("Plugin Details:\n");
n_print (" Name:\t\t%s\n", plugin->desc.name);
n_print (" Description:\t%s\n", plugin->desc.description);
n_print (" Filename:\t%s\n", plugin->filename ? plugin->filename : "(null)");
n_print (" Version:\t%s\n", plugin->desc.version);
n_print (" License:\t%s\n", plugin->desc.license);
n_print (" Package:\t%s\n", plugin->desc.package);
n_print (" Origin URL:\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_schedulers = 0;
gint num_indexes = 0;
gint num_other = 0;
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);
n_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);
n_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++;
}
g_print ("\n");
} 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);
n_print (" %s: %s\n", GST_OBJECT_NAME (factory), factory->longdesc);
num_schedulers++;
} 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_schedulers > 0)
n_print (" +-- %d schedulers\n", num_schedulers);
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_registry_pool_find_feature (element_name,
GST_TYPE_SCHEDULER_FACTORY);
if (feature) {
n_print ("%s: a scheduler\n", element_name);
return 0;
}
#ifndef GST_DISABLE_INDEX
feature = gst_registry_pool_find_feature (element_name,
GST_TYPE_INDEX_FACTORY);
if (feature) {
n_print ("%s: an index\n", element_name);
return 0;
}
#endif
feature = gst_registry_pool_find_feature (element_name,
GST_TYPE_TYPE_FIND_FACTORY);
if (feature) {
n_print ("%s: a typefind function\n", element_name);
return 0;
}
#ifndef GST_DISABLE_URI
feature = gst_registry_pool_find_feature (element_name, GST_TYPE_URI_HANDLER);
if (feature) {
n_print ("%s: an uri handler\n", element_name);
return 0;
}
#endif
return -1;
}
static int
print_element_info (GstElementFactory * factory, gboolean print_names)
{
GstElement *element;
gint maxlevel = 0;
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 = "";
print_factory_details_info (factory);
if (GST_PLUGIN_FEATURE (factory)->manager) {
GstPlugin *plugin = (GstPlugin *) GST_PLUGIN_FEATURE (factory)->manager;
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_pad_info (element);
print_element_properties_info (element);
print_dynamic_parameters_info (element);
print_signal_info (element);
print_children_info (element);
if (_name != "")
g_free (_name);
return 0;
}
int
main (int argc, char *argv[])
{
gboolean print_all = FALSE;
struct poptOption options[] = {
GST_TOOLS_POPT_VERSION,
{"print-all", 'a', POPT_ARG_NONE | POPT_ARGFLAG_STRIP, &print_all, 0,
N_("Print all elements"), NULL},
POPT_TABLEEND
};
#ifdef GETTEXT_PACKAGE
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
#endif
gst_init_with_popt_table (&argc, &argv, options);
gst_tools_print_version ("gst-inspect-0.8");
gst_control_init (&argc, &argv);
if (print_all && argc > 2) {
g_print ("-a requires no extra arguments\n");
return 1;
}
/* if no arguments, print out list of elements */
if (argc == 1 || print_all) {
print_element_list (print_all);
/* else we try to get a factory */
} else {
GstElementFactory *factory;
GstPlugin *plugin;
const char *arg = argv[argc - 1];
int retval;
factory = gst_element_factory_find (arg);
/* if there's a factory, print out the info */
if (factory) {
retval = print_element_info (factory, print_all);
} else {
retval = print_element_features (arg);
}
/* otherwise check if it's a plugin */
if (retval) {
plugin = gst_registry_pool_find_plugin (arg);
/* if there is such a plugin, print out info */
if (plugin) {
print_plugin_info (plugin);
print_plugin_features (plugin);
} else {
g_print ("No such element or plugin '%s'\n", arg);
return -1;
}
}
}
return 0;
}
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