mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-14 13:21:28 +00:00
458 lines
13 KiB
C
458 lines
13 KiB
C
#include <gst/gst.h>
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#include <string.h>
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// this must be built within the gstreamer dir, else this will fail
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#include <gst/gstpropsprivate.h>
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void print_prop(GstPropsEntry *prop,gboolean showname,gchar *pfx) {
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GList *list;
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GstPropsEntry *listentry;
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gchar *longprefix;
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if (showname)
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printf("%s%s: ",pfx,g_quark_to_string(prop->propid));
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else
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printf(pfx);
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switch (prop->propstype) {
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case GST_PROPS_INT_ID:
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printf("Integer: %d\n",prop->data.int_data);
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break;
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case GST_PROPS_INT_RANGE_ID:
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printf("Integer range: %d - %d\n",prop->data.int_range_data.min,
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prop->data.int_range_data.max);
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break;
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case GST_PROPS_FLOAT_ID:
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printf("Float: %f\n",prop->data.float_data);
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break;
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case GST_PROPS_FLOAT_RANGE_ID:
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printf("Float range: %f - %f\n",prop->data.float_range_data.min,
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prop->data.float_range_data.max);
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break;
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case GST_PROPS_BOOL_ID:
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printf("Boolean: %s\n",prop->data.bool_data ? "TRUE" : "FALSE");
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break;
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case GST_PROPS_STRING_ID:
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printf("String: %s\n",prop->data.string_data.string);
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break;
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case GST_PROPS_FOURCC_ID:
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printf("FourCC: '%c%c%c%c'\n",
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prop->data.fourcc_data & 0xff,prop->data.fourcc_data>>8 & 0xff,
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prop->data.fourcc_data>>16 & 0xff,prop->data.fourcc_data>>24 & 0xff);
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break;
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case GST_PROPS_LIST_ID:
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printf("List:\n");
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longprefix = g_strdup_printf("%s ",pfx);
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list = prop->data.list_data.entries;
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while (list) {
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listentry = (GstPropsEntry*)(list->data);
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list = g_list_next(list);
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print_prop(listentry,FALSE,longprefix);
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}
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g_free(longprefix);
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break;
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default:
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printf("unknown props %d\n", prop->propstype);
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}
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}
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void print_props(GstProps *properties,gchar *pfx) {
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GList *props;
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GstPropsEntry *prop;
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props = properties->properties;
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while (props) {
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prop = (GstPropsEntry*)(props->data);
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props = g_list_next(props);
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print_prop(prop,TRUE,pfx);
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}
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}
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gint
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print_element_info (GstElementFactory *factory)
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{
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GstElement *element;
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GstObjectClass *gstobject_class;
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GstElementClass *gstelement_class;
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GList *pads;
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GstCaps *caps;
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GstPad *pad;
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GstRealPad *realpad;
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GstPadTemplate *padtemplate;
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guint32 *flags;
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gint num_properties,i;
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GParamSpec **property_specs;
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GList *children;
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GstElement *child;
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gboolean have_flags;
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element = gst_elementfactory_create(factory,"element");
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if (!element) {
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g_print ("couldn't construct element for some reason\n");
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return -1;
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}
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gstobject_class = GST_OBJECT_CLASS (G_OBJECT_GET_CLASS (element));
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gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element));
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printf("Factory Details:\n");
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printf(" Long name:\t%s\n",factory->details->longname);
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printf(" Class:\t%s\n",factory->details->klass);
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printf(" Description:\t%s\n",factory->details->description);
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printf(" Version:\t%s\n",factory->details->version);
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printf(" Author(s):\t%s\n",factory->details->author);
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printf(" Copyright:\t%s\n",factory->details->copyright);
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printf("\n");
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printf("Pad Templates:\n");
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if (factory->numpadtemplates) {
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pads = factory->padtemplates;
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while (pads) {
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padtemplate = (GstPadTemplate*)(pads->data);
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pads = g_list_next(pads);
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if (padtemplate->direction == GST_PAD_SRC)
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printf(" SRC template: '%s'\n",padtemplate->name_template);
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else if (padtemplate->direction == GST_PAD_SINK)
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printf(" SINK template: '%s'\n",padtemplate->name_template);
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else
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printf(" UNKNOWN!!! template: '%s'\n",padtemplate->name_template);
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if (padtemplate->presence == GST_PAD_ALWAYS)
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printf(" Availability: Always\n");
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else if (padtemplate->presence == GST_PAD_SOMETIMES)
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printf(" Availability: Sometimes\n");
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else if (padtemplate->presence == GST_PAD_REQUEST)
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printf(" Availability: On request\n");
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else
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printf(" Availability: UNKNOWN!!!\n");
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if (padtemplate->caps) {
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printf(" Capabilities:\n");
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caps = padtemplate->caps;
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while (caps) {
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GstType *type;
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printf(" '%s':\n",caps->name);
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type = gst_type_find_by_id (caps->id);
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if (type)
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printf(" MIME type: '%s':\n",type->mime);
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else
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printf(" MIME type: 'unknown/unknown':\n");
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if (caps->properties)
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print_props(caps->properties," ");
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caps = caps->next;
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}
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}
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printf("\n");
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}
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} else
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printf(" none\n");
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have_flags = FALSE;
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printf("Element Flags:\n");
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if (GST_FLAG_IS_SET(element,GST_ELEMENT_COMPLEX)) {
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printf(" GST_ELEMENT_COMPLEX\n");
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have_flags = TRUE;
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}
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if (GST_FLAG_IS_SET(element,GST_ELEMENT_DECOUPLED)) {
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printf(" GST_ELEMENT_DECOUPLED\n");
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have_flags = TRUE;
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}
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if (GST_FLAG_IS_SET(element,GST_ELEMENT_THREAD_SUGGESTED)) {
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printf(" GST_ELEMENT_THREADSUGGESTED\n");
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have_flags = TRUE;
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}
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if (GST_FLAG_IS_SET(element,GST_ELEMENT_NO_SEEK)) {
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printf(" GST_ELEMENT_NO_SEEK\n");
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have_flags = TRUE;
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}
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if (!have_flags)
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printf(" no flags set\n");
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printf("\nElement Implementation:\n");
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if (element->loopfunc)
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printf(" loopfunc()-based element: %s\n",GST_DEBUG_FUNCPTR_NAME(element->loopfunc));
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else
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printf(" No loopfunc(), must be chain-based or not configured yet\n");
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printf(" Has change_state() function: %s\n",
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GST_DEBUG_FUNCPTR_NAME(gstelement_class->change_state));
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printf(" Has custom save_thyself() function: %s\n",
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GST_DEBUG_FUNCPTR_NAME(gstobject_class->save_thyself));
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printf(" Has custom restore_thyself() function: %s\n",
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GST_DEBUG_FUNCPTR_NAME(gstobject_class->restore_thyself));
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printf("\nPads:\n");
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if (element->numpads) {
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pads = gst_element_get_pad_list(element);
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while (pads) {
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pad = GST_PAD(pads->data);
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pads = g_list_next(pads);
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realpad = GST_PAD_REALIZE(pad);
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if (gst_pad_get_direction(pad) == GST_PAD_SRC)
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printf(" SRC: '%s'",gst_pad_get_name(pad));
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else if (gst_pad_get_direction(pad) == GST_PAD_SINK)
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printf(" SINK: '%s'",gst_pad_get_name(pad));
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else
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printf(" UNKNOWN!!!: '%s'\n",gst_pad_get_name(pad));
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if (GST_IS_GHOST_PAD(pad))
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printf(", ghost of real pad %s:%s\n",GST_DEBUG_PAD_NAME(realpad));
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else
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printf("\n");
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printf(" Implementation:\n");
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if (realpad->chainfunc)
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printf(" Has chainfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->chainfunc));
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if (realpad->getfunc)
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printf(" Has getfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->getfunc));
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if (realpad->getregionfunc)
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printf(" Has getregionfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->getregionfunc));
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if (realpad->qosfunc)
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printf(" Has qosfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->qosfunc));
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if (realpad->eosfunc != gst_pad_eos_func) {
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printf(" Has eosfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(realpad->eosfunc));
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}
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if (pad->padtemplate)
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printf(" Pad Template: '%s'\n",pad->padtemplate->name_template);
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if (realpad->caps) {
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printf(" Capabilities:\n");
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caps = realpad->caps;
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while (caps) {
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GstType *type;
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printf(" '%s':\n",caps->name);
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type = gst_type_find_by_id (caps->id);
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if (type)
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printf(" MIME type: '%s':\n",type->mime);
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else
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printf(" MIME type: 'unknown/unknown':\n");
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if (caps->properties)
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print_props(caps->properties," ");
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caps = caps->next;
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}
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}
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}
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} else
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printf(" none\n");
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// FIXME accessing private data of GObjectClass !!!
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num_properties = G_OBJECT_GET_CLASS (element)->n_property_specs;
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property_specs = G_OBJECT_GET_CLASS (element)->property_specs;
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if (num_properties)
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printf("\nElement Arguments:\n");
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else
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printf("\nNo Element Arguments.\n");
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for (i=0;i<num_properties;i++) {
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GParamSpec *param = property_specs[i];
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GValue value = { 0, };
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g_value_init (&value, param->value_type);
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g_object_get_property (G_OBJECT (element), param->name, &value);
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printf(" %-40.40s: ",param->name);
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switch (G_VALUE_TYPE (&value)) {
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case G_TYPE_STRING: printf("String (Default \"%s\")", g_value_get_string (&value));break;
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case G_TYPE_BOOLEAN: printf("Boolean (Default %s)", (g_value_get_boolean (&value)?"true":"false"));break;
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case G_TYPE_ULONG: printf("Unsigned Long (Default %lu)", g_value_get_ulong (&value));break;
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case G_TYPE_LONG: printf("Long (Default %ld)", g_value_get_long (&value));break;
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case G_TYPE_UINT: printf("Unsigned Integer (Default %u)", g_value_get_uint (&value));break;
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case G_TYPE_INT: printf("Integer (Default %d)", g_value_get_int (&value));break;
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case G_TYPE_FLOAT: printf("Float (Default %f)", g_value_get_float (&value));break;
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case G_TYPE_DOUBLE: printf("Double (Default %f)", g_value_get_double (&value));break;
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default:
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if (param->value_type == GST_TYPE_FILENAME)
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printf("Filename");
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else if (G_TYPE_IS_ENUM (param->value_type)) {
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GEnumValue *values;
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GEnumClass *ec = G_ENUM_CLASS (g_type_class_ref (param->value_type));
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guint j = 0;
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printf("Enum \"%s\" (default %d)", g_type_name (G_VALUE_TYPE (&value)),
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g_value_get_enum (&value));
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values = ec->values;
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while (values[j].value_name) {
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printf("\n (%d): \t%s", values[j].value, values[j].value_nick);
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j++;
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}
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g_type_class_unref (ec);
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}
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else
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printf("unknown %d", param->value_type);
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break;
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}
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printf("\n");
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}
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/*
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g_free (args);
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if (num_args == 0) g_print (" none");
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printf("\n");
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*/
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// for compound elements
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if (GST_IS_BIN(element)) {
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printf("\nChildren:\n");
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children = gst_bin_get_list(GST_BIN(element));
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while (children) {
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child = GST_ELEMENT (children->data);
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children = g_list_next (children);
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g_print(" %s\n",GST_ELEMENT_NAME(child));
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}
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}
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return 0;
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}
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void print_element_list() {
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GList *plugins, *factories;
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GstPlugin *plugin;
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GstElementFactory *factory;
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plugins = gst_plugin_get_list();
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while (plugins) {
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plugin = (GstPlugin*)(plugins->data);
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plugins = g_list_next (plugins);
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// printf("%s:\n",plugin->name);
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factories = gst_plugin_get_factory_list(plugin);
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while (factories) {
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factory = (GstElementFactory*)(factories->data);
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factories = g_list_next (factories);
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printf("%s: %s: %s\n",plugin->name,factory->name,factory->details->longname);
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}
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// printf("\n");
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}
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}
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void
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print_plugin_info (GstPlugin *plugin)
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{
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printf("Plugin Details:\n");
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printf(" Name:\t\t%s\n",plugin->name);
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printf(" Long Name:\t%s\n",plugin->longname);
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printf(" Filename:\t%s\n",plugin->filename);
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printf("\n");
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if (plugin->numelements) {
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GList *factories;
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GstElementFactory *factory;
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printf("Element Factories:\n");
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factories = gst_plugin_get_factory_list(plugin);
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while (factories) {
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factory = (GstElementFactory*)(factories->data);
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factories = g_list_next(factories);
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printf(" %s: %s\n",factory->name,factory->details->longname);
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}
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}
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if (plugin->numautopluggers) {
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GList *factories;
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GstAutoplugFactory *factory;
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printf("Autpluggers:\n");
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factories = gst_plugin_get_autoplug_list(plugin);
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while (factories) {
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factory = (GstAutoplugFactory*)(factories->data);
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factories = g_list_next(factories);
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printf(" %s: %s\n", factory->name, factory->longdesc);
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}
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}
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if (plugin->numtypes) {
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GList *factories;
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GstTypeFactory *factory;
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printf("Types:\n");
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factories = gst_plugin_get_type_list(plugin);
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while (factories) {
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factory = (GstTypeFactory*)(factories->data);
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factories = g_list_next(factories);
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printf(" %s: %s\n", factory->mime, factory->exts);
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if (factory->typefindfunc)
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printf(" Has typefind function: %s\n",GST_DEBUG_FUNCPTR_NAME(factory->typefindfunc));
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}
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}
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printf("\n");
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}
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int main(int argc,char *argv[]) {
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GstElementFactory *factory;
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GstPlugin *plugin;
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gchar *so;
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gst_init(&argc,&argv);
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// if no arguments, print out list of elements
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if (argc == 1) {
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print_element_list();
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// else we try to get a factory
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} else {
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// first check for help
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if (strstr(argv[1],"-help")) {
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printf("Usage: %s\t\t\tList all registered elements\n",argv[0]);
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printf(" %s element-name\tShow element details\n",argv[0]);
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printf(" %s plugin-name[.so]\tShow information about plugin\n",argv[0]);
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return 0;
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}
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// only search for a factory if there's not a '.so'
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if (! strstr(argv[1],".so")) {
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factory = gst_elementfactory_find (argv[1]);
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// if there's a factory, print out the info
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if (factory)
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return print_element_info(factory);
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} else {
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// strip the .so
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so = strstr(argv[1],".so");
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so[0] = '\0';
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}
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// otherwise assume it's a plugin
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plugin = gst_plugin_find (argv[1]);
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// if there is such a plugin, print out info
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if (plugin) {
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print_plugin_info(plugin);
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} else {
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printf("no such element or plugin '%s'\n",argv[1]);
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return -1;
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}
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}
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return 0;
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}
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