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gstreamer/tools/gstreamer-inspect.c
Erik Walthinsen 764caf7717 added shim for g_object_class_list_properties and converted -inspect and -compprep to use it 
Original commit message from CVS:
added shim for g_object_class_list_properties and converted -inspect and -compprep to use it
2001-06-25 00:07:55 +00:00

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#include <gst/gst.h>
#include <string.h>
// this must be built within the gstreamer dir, else this will fail
#include <gst/gstpropsprivate.h>
void print_prop(GstPropsEntry *prop,gboolean showname,gchar *pfx) {
GList *list;
GstPropsEntry *listentry;
gchar *longprefix;
if (showname)
printf("%s%s: ",pfx,g_quark_to_string(prop->propid));
else
printf(pfx);
switch (prop->propstype) {
case GST_PROPS_INT_ID:
printf("Integer: %d\n",prop->data.int_data);
break;
case GST_PROPS_INT_RANGE_ID:
printf("Integer range: %d - %d\n",prop->data.int_range_data.min,
prop->data.int_range_data.max);
break;
case GST_PROPS_FLOAT_ID:
printf("Float: %f\n",prop->data.float_data);
break;
case GST_PROPS_FLOAT_RANGE_ID:
printf("Float range: %f - %f\n",prop->data.float_range_data.min,
prop->data.float_range_data.max);
break;
case GST_PROPS_BOOL_ID:
printf("Boolean: %s\n",prop->data.bool_data ? "TRUE" : "FALSE");
break;
case GST_PROPS_STRING_ID:
printf("String: %s\n",prop->data.string_data.string);
break;
case GST_PROPS_FOURCC_ID:
printf("FourCC: '%c%c%c%c'\n",
prop->data.fourcc_data & 0xff,prop->data.fourcc_data>>8 & 0xff,
prop->data.fourcc_data>>16 & 0xff,prop->data.fourcc_data>>24 & 0xff);
break;
case GST_PROPS_LIST_ID:
printf("List:\n");
longprefix = g_strdup_printf("%s ",pfx);
list = prop->data.list_data.entries;
while (list) {
listentry = (GstPropsEntry*)(list->data);
list = g_list_next(list);
print_prop(listentry,FALSE,longprefix);
}
g_free(longprefix);
break;
default:
printf("unknown props %d\n", prop->propstype);
}
}
void print_props(GstProps *properties,gchar *pfx) {
GList *props;
GstPropsEntry *prop;
props = properties->properties;
while (props) {
prop = (GstPropsEntry*)(props->data);
props = g_list_next(props);
print_prop(prop,TRUE,pfx);
}
}
gint
print_element_info (GstElementFactory *factory)
{
GstElement *element;
GstObjectClass *gstobject_class;
GstElementClass *gstelement_class;
GList *pads;
GstCaps *caps;
GstPad *pad;
GstRealPad *realpad;
GstPadTemplate *padtemplate;
gint num_properties,i;
GParamSpec **property_specs;
GList *children;
GstElement *child;
gboolean have_flags;
element = gst_elementfactory_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));
printf("Factory Details:\n");
printf(" Long name:\t%s\n",factory->details->longname);
printf(" Class:\t%s\n",factory->details->klass);
printf(" Description:\t%s\n",factory->details->description);
printf(" Version:\t%s\n",factory->details->version);
printf(" Author(s):\t%s\n",factory->details->author);
printf(" Copyright:\t%s\n",factory->details->copyright);
printf("\n");
printf("Pad Templates:\n");
if (factory->numpadtemplates) {
pads = factory->padtemplates;
while (pads) {
padtemplate = (GstPadTemplate*)(pads->data);
pads = g_list_next(pads);
if (padtemplate->direction == GST_PAD_SRC)
printf(" SRC template: '%s'\n",padtemplate->name_template);
else if (padtemplate->direction == GST_PAD_SINK)
printf(" SINK template: '%s'\n",padtemplate->name_template);
else
printf(" UNKNOWN!!! template: '%s'\n",padtemplate->name_template);
if (padtemplate->presence == GST_PAD_ALWAYS)
printf(" Availability: Always\n");
else if (padtemplate->presence == GST_PAD_SOMETIMES)
printf(" Availability: Sometimes\n");
else if (padtemplate->presence == GST_PAD_REQUEST)
printf(" Availability: On request\n");
else
printf(" Availability: UNKNOWN!!!\n");
if (padtemplate->caps) {
printf(" Capabilities:\n");
caps = padtemplate->caps;
while (caps) {
GstType *type;
printf(" '%s':\n",caps->name);
type = gst_type_find_by_id (caps->id);
if (type)
printf(" MIME type: '%s':\n",type->mime);
else
printf(" MIME type: 'unknown/unknown':\n");
if (caps->properties)
print_props(caps->properties," ");
caps = caps->next;
}
}
printf("\n");
}
} else
printf(" none\n");
have_flags = FALSE;
printf("Element Flags:\n");
if (GST_FLAG_IS_SET(element,GST_ELEMENT_COMPLEX)) {
printf(" GST_ELEMENT_COMPLEX\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET(element,GST_ELEMENT_DECOUPLED)) {
printf(" GST_ELEMENT_DECOUPLED\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET(element,GST_ELEMENT_THREAD_SUGGESTED)) {
printf(" GST_ELEMENT_THREADSUGGESTED\n");
have_flags = TRUE;
}
if (GST_FLAG_IS_SET(element,GST_ELEMENT_NO_SEEK)) {
printf(" GST_ELEMENT_NO_SEEK\n");
have_flags = TRUE;
}
if (!have_flags)
printf(" no flags set\n");
printf("\nElement Implementation:\n");
if (element->loopfunc)
printf(" loopfunc()-based element: %s\n",GST_DEBUG_FUNCPTR_NAME(element->loopfunc));
else
printf(" No loopfunc(), must be chain-based or not configured yet\n");
printf(" Has change_state() function: %s\n",
GST_DEBUG_FUNCPTR_NAME(gstelement_class->change_state));
printf(" Has custom save_thyself() function: %s\n",
GST_DEBUG_FUNCPTR_NAME(gstobject_class->save_thyself));
printf(" Has custom restore_thyself() function: %s\n",
GST_DEBUG_FUNCPTR_NAME(gstobject_class->restore_thyself));
printf("\nPads:\n");
if (element->numpads) {
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)
printf(" SRC: '%s'",gst_pad_get_name(pad));
else if (gst_pad_get_direction(pad) == GST_PAD_SINK)
printf(" SINK: '%s'",gst_pad_get_name(pad));
else
printf(" UNKNOWN!!!: '%s'\n",gst_pad_get_name(pad));
if (GST_IS_GHOST_PAD(pad))
printf(", ghost of real pad %s:%s\n",GST_DEBUG_PAD_NAME(realpad));
else
printf("\n");
printf(" Implementation:\n");
if (realpad->chainfunc)
printf(" Has chainfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->chainfunc));
if (realpad->getfunc)
printf(" Has getfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->getfunc));
if (realpad->getregionfunc)
printf(" Has getregionfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->getregionfunc));
if (realpad->qosfunc)
printf(" Has qosfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->qosfunc));
if (realpad->eosfunc != gst_pad_eos_func) {
printf(" Has eosfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->eosfunc));
}
if (pad->padtemplate)
printf(" Pad Template: '%s'\n",pad->padtemplate->name_template);
if (realpad->caps) {
printf(" Capabilities:\n");
caps = realpad->caps;
while (caps) {
GstType *type;
printf(" '%s':\n",caps->name);
type = gst_type_find_by_id (caps->id);
if (type)
printf(" MIME type: '%s':\n",type->mime);
else
printf(" MIME type: 'unknown/unknown':\n");
if (caps->properties)
print_props(caps->properties," ");
caps = caps->next;
}
}
}
} else
printf(" none\n");
property_specs = g_object_class_list_properties(G_OBJECT_GET_CLASS (element), &num_properties);
printf("\nElement Arguments:\n");
for (i=0;i<num_properties;i++) {
GValue value = { 0, };
GParamSpec *param = property_specs[i];
g_value_init (&value, param->value_type);
g_object_get_property (G_OBJECT (element), param->name, &value);
printf(" %-40.40s: ",param->name);
switch (G_VALUE_TYPE (&value)) {
case G_TYPE_STRING: printf("String (Default \"%s\")", g_value_get_string (&value));break;
case G_TYPE_BOOLEAN: printf("Boolean (Default %s)", (g_value_get_boolean (&value)?"true":"false"));break;
case G_TYPE_ULONG: printf("Unsigned Long (Default %lu)", g_value_get_ulong (&value));break;
case G_TYPE_LONG: printf("Long (Default %ld)", g_value_get_long (&value));break;
case G_TYPE_UINT: printf("Unsigned Integer (Default %u)", g_value_get_uint (&value));break;
case G_TYPE_INT: printf("Integer (Default %d)", g_value_get_int (&value));break;
case G_TYPE_FLOAT: printf("Float (Default %f)", g_value_get_float (&value));break;
case G_TYPE_DOUBLE: printf("Double (Default %f)", g_value_get_double (&value));break;
default:
if (param->value_type == GST_TYPE_FILENAME)
printf("Filename");
else if (G_IS_PARAM_SPEC_ENUM (param)) {
GEnumValue *values;
guint j = 0;
printf("Enum \"%s\" (default %d)", g_type_name (G_VALUE_TYPE (&value)),
g_value_get_enum (&value));
#ifdef USE_GLIB2
values = G_ENUM_CLASS (g_type_class_ref (param->value_type))->values;
#else
values = gtk_type_enum_get_values (param->value_type);
#endif
while (values[j].value_name) {
printf("\n (%d): \t%s", values[j].value, values[j].value_nick);
j++;
}
//g_type_class_unref (ec);
}
else
printf("unknown %d", param->value_type);
break;
}
printf("\n");
}
/*
g_free (args);
*/
if (num_properties == 0) g_print (" none");
printf("\n");
// for compound elements
if (GST_IS_BIN(element)) {
printf("\nChildren:\n");
children = gst_bin_get_list(GST_BIN(element));
while (children) {
child = GST_ELEMENT (children->data);
children = g_list_next (children);
g_print(" %s\n",GST_ELEMENT_NAME(child));
}
}
return 0;
}
void print_element_list() {
GList *plugins, *factories;
GstPlugin *plugin;
GstElementFactory *factory;
plugins = gst_plugin_get_list();
while (plugins) {
plugin = (GstPlugin*)(plugins->data);
plugins = g_list_next (plugins);
// printf("%s:\n",plugin->name);
factories = gst_plugin_get_factory_list(plugin);
while (factories) {
factory = (GstElementFactory*)(factories->data);
factories = g_list_next (factories);
printf("%s: %s: %s\n",plugin->name,factory->name,factory->details->longname);
}
// printf("\n");
}
}
void
print_plugin_info (GstPlugin *plugin)
{
printf("Plugin Details:\n");
printf(" Name:\t\t%s\n",plugin->name);
printf(" Long Name:\t%s\n",plugin->longname);
printf(" Filename:\t%s\n",plugin->filename);
printf("\n");
if (plugin->numelements) {
GList *factories;
GstElementFactory *factory;
printf("Element Factories:\n");
factories = gst_plugin_get_factory_list(plugin);
while (factories) {
factory = (GstElementFactory*)(factories->data);
factories = g_list_next(factories);
printf(" %s: %s\n",factory->name,factory->details->longname);
}
}
if (plugin->numautopluggers) {
GList *factories;
GstAutoplugFactory *factory;
printf("Autpluggers:\n");
factories = gst_plugin_get_autoplug_list(plugin);
while (factories) {
factory = (GstAutoplugFactory*)(factories->data);
factories = g_list_next(factories);
printf(" %s: %s\n", factory->name, factory->longdesc);
}
}
if (plugin->numtypes) {
GList *factories;
GstTypeFactory *factory;
printf("Types:\n");
factories = gst_plugin_get_type_list(plugin);
while (factories) {
factory = (GstTypeFactory*)(factories->data);
factories = g_list_next(factories);
printf(" %s: %s\n", factory->mime, factory->exts);
if (factory->typefindfunc)
printf(" Has typefind function: %s\n",GST_DEBUG_FUNCPTR_NAME(factory->typefindfunc));
}
}
printf("\n");
}
int main(int argc,char *argv[]) {
GstElementFactory *factory;
GstPlugin *plugin;
gchar *so;
gst_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")) {
printf("Usage: %s\t\t\tList all registered elements\n",argv[0]);
printf(" %s element-name\tShow element details\n",argv[0]);
printf(" %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_elementfactory_find (argv[1]);
// if there's a factory, print out the info
if (factory)
return print_element_info(factory);
} else {
// strip the .so
so = strstr(argv[1],".so");
so[0] = '\0';
}
// otherwise assume it's a plugin
plugin = gst_plugin_find (argv[1]);
// if there is such a plugin, print out info
if (plugin) {
print_plugin_info(plugin);
} else {
printf("no such element or plugin '%s'\n",argv[1]);
return -1;
}
}
return 0;
}
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