mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 10:11:08 +00:00
392 lines
11 KiB
C
392 lines
11 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_NUM:
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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_NUM:
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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_BOOL_ID_NUM:
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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_FOURCC_ID_NUM:
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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_NUM:
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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("\n");
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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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/*
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struct _GstPropsEntry {
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GQuark propid;
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GstPropsId propstype;
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union {
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// flat values
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gboolean bool_data;
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guint32 fourcc_data;
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gint int_data;
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// structured values
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struct {
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GList *entries;
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} list_data;
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struct {
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gint min;
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gint max;
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} int_range_data;
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} data;
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};
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*/
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gint print_element_info(GstElementFactory *factory) {
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GstElement *element;
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GstElementClass *gstelement_class;
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GList *pads, *caps;
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GstPad *pad;
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GstPadTemplate *padtemplate;
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GstCaps *cap;
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GtkArg *args;
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guint32 *flags;
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gint num_args,i;
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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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gstelement_class = GST_ELEMENT_CLASS (GTK_OBJECT (element)->klass);
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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(" Exists: Always\n");
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else if (padtemplate->presence == GST_PAD_SOMETIMES)
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printf(" Exists: Sometimes\n");
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else
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printf(" Exists: 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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cap = (GstCaps*)(caps->data);
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caps = g_list_next(caps);
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printf(" '%s':\n",cap->name);
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type = gst_type_find_by_id (cap->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 (cap->properties)
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print_props(cap->properties," ");
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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\n");
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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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if (GST_FLAG_IS_SET(element,GST_ELEMENT_DECOUPLED))
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printf(" GST_ELEMENT_DECOUPLED\n");
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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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if (GST_FLAG_IS_SET(element,GST_ELEMENT_NO_SEEK))
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printf(" GST_ELEMENT_NO_SEEK\n");
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if (! GST_FLAG_IS_SET(element, GST_ELEMENT_COMPLEX | GST_ELEMENT_DECOUPLED |
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GST_ELEMENT_THREAD_SUGGESTED | GST_ELEMENT_NO_SEEK))
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printf(" no flags set\n");
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printf("\n");
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printf("Element Implementation:\n");
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if (element->loopfunc)
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printf(" loopfunc()-based element\n");
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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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if (gstelement_class->change_state)
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printf(" Has change_state() function\n");
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else
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printf(" No change_state() class function\n");
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if (gstelement_class->save_thyself)
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printf(" Has custom save_thyself() class function\n");
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if (gstelement_class->restore_thyself)
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printf(" Has custom restore_thyself() class function\n");
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printf("\n");
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printf("Pads:\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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if (gst_pad_get_direction(pad) == GST_PAD_SRC)
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printf(" SRC: '%s'\n",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'\n",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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printf(" Implementation:\n");
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if (pad->chainfunc)
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printf(" Has chainfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(pad->chainfunc));
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if (pad->getfunc)
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printf(" Has getfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(pad->getfunc));
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if (pad->getregionfunc)
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printf(" Has getregionfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(pad->getregionfunc));
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if (pad->qosfunc)
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printf(" Has qosfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(pad->qosfunc));
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if (pad->eosfunc) {
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if (pad->eosfunc == gst_pad_eos_func)
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printf(" Has default eosfunc() gst_pad_eos_func()\n");
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else
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printf(" Has eosfunc(): %s\n",GST_DEBUG_FUNCPTR_NAME(pad->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 (pad->caps) {
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printf(" Capabilities:\n");
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caps = pad->caps;
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while (caps) {
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GstType *type;
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cap = (GstCaps*)(caps->data);
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caps = g_list_next(caps);
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printf(" '%s':\n",cap->name);
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type = gst_type_find_by_id (cap->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 (cap->properties)
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print_props(cap->properties," ");
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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\n");
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printf("Element Arguments:\n");
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args = gtk_object_query_args(GTK_OBJECT_TYPE(element), &flags, &num_args);
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for (i=0;i<num_args;i++) {
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gtk_object_getv(GTK_OBJECT(element), 1, &args[i]);
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printf(" %s: ",args[i].name);
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switch (args[i].type) {
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case GTK_TYPE_STRING: printf("String");break;
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case GTK_TYPE_BOOL: printf("Boolean");break;
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case GTK_TYPE_ULONG:
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case GTK_TYPE_LONG:
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case GTK_TYPE_UINT:
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case GTK_TYPE_INT: printf("Integer");break;
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case GTK_TYPE_FLOAT:
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case GTK_TYPE_DOUBLE: printf("Float");break;
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default:
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if (args[i].type == GST_TYPE_FILENAME)
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printf("Filename");
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else if (GTK_FUNDAMENTAL_TYPE (args[i].type) == GTK_TYPE_ENUM) {
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GtkEnumValue *values;
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guint j = 0;
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printf("Enum (default %d)", GTK_VALUE_ENUM (args[i]));
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values = gtk_type_enum_get_values (args[i].type);
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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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}
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else if (args[i].type == GTK_TYPE_WIDGET)
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printf("GtkWidget");
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else
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printf("unknown");
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break;
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}
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printf("\n");
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}
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if (num_args == 0) g_print (" none");
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printf("\n");
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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 print_plugin_info(GstPlugin *plugin) {
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GList *factories;
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GstElementFactory *factory;
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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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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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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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