c8f51e5dd4009c8d47104a04fb2caa0c5bba5dd8
1 /* GStreamer
2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
4 * 2004 Thomas Vander Stichele <thomas@apestaart.org>
5 *
6 * gst-inspect.c: tool to inspect the GStreamer registry
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 */
24 #ifdef HAVE_CONFIG_H
25 # include "config.h"
26 #endif
28 #include <gst/controller/gstcontroller.h>
30 #include "tools.h"
32 #include <string.h>
33 #include <locale.h>
34 #include <glib/gprintf.h>
36 static char *_name = NULL;
38 static int print_element_info (GstElementFactory * factory,
39 gboolean print_names);
41 static void
42 n_print (const char *format, ...)
43 {
44 va_list args;
46 if (_name)
47 g_print ("%s", _name);
49 va_start (args, format);
50 g_vprintf (format, args);
51 va_end (args);
52 }
54 static gboolean
55 print_field (GQuark field, const GValue * value, gpointer pfx)
56 {
57 gchar *str = gst_value_serialize (value);
59 n_print ("%s %15s: %s\n", (gchar *) pfx, g_quark_to_string (field), str);
60 g_free (str);
61 return TRUE;
62 }
64 static void
65 print_caps (const GstCaps * caps, const gchar * pfx)
66 {
67 guint i;
69 g_return_if_fail (caps != NULL);
71 if (gst_caps_is_any (caps)) {
72 n_print ("%sANY\n", pfx);
73 return;
74 }
75 if (gst_caps_is_empty (caps)) {
76 n_print ("%sEMPTY\n", pfx);
77 return;
78 }
80 for (i = 0; i < gst_caps_get_size (caps); i++) {
81 GstStructure *structure = gst_caps_get_structure (caps, i);
83 n_print ("%s%s\n", pfx, gst_structure_get_name (structure));
84 gst_structure_foreach (structure, print_field, (gpointer) pfx);
85 }
86 }
88 #if 0
89 static void
90 print_formats (const GstFormat * formats)
91 {
92 while (formats && *formats) {
93 const GstFormatDefinition *definition;
95 definition = gst_format_get_details (*formats);
96 if (definition)
97 n_print ("\t\t(%d):\t%s (%s)\n", *formats,
98 definition->nick, definition->description);
99 else
100 n_print ("\t\t(%d):\tUnknown format\n", *formats);
102 formats++;
103 }
104 }
105 #endif
107 static void
108 print_query_types (const GstQueryType * types)
109 {
110 while (types && *types) {
111 const GstQueryTypeDefinition *definition;
113 definition = gst_query_type_get_details (*types);
114 if (definition)
115 n_print ("\t\t(%d):\t%s (%s)\n", *types,
116 definition->nick, definition->description);
117 else
118 n_print ("\t\t(%d):\tUnknown query format\n", *types);
120 types++;
121 }
122 }
124 #if 0
125 static void
126 print_event_masks (const GstEventMask * masks)
127 {
128 GType event_type;
129 GEnumClass *klass;
130 GType event_flags;
131 GFlagsClass *flags_class = NULL;
133 event_type = gst_event_type_get_type ();
134 klass = (GEnumClass *) g_type_class_ref (event_type);
136 while (masks && masks->type) {
137 GEnumValue *value;
138 gint flags = 0, index = 0;
140 switch (masks->type) {
141 case GST_EVENT_SEEK:
142 flags = masks->flags;
143 event_flags = gst_seek_type_get_type ();
144 flags_class = (GFlagsClass *) g_type_class_ref (event_flags);
145 break;
146 default:
147 break;
148 }
150 value = g_enum_get_value (klass, masks->type);
151 g_print ("\t\t%s ", value->value_nick);
153 while (flags) {
154 GFlagsValue *value;
156 if (flags & 1) {
157 value = g_flags_get_first_value (flags_class, 1 << index);
159 if (value)
160 g_print ("| %s ", value->value_nick);
161 else
162 g_print ("| ? ");
163 }
164 flags >>= 1;
165 index++;
166 }
167 g_print ("\n");
169 masks++;
170 }
171 }
172 #endif
174 static const char *
175 get_rank_name (char *s, gint rank)
176 {
177 static const int ranks[4] = {
178 GST_RANK_NONE, GST_RANK_MARGINAL, GST_RANK_SECONDARY, GST_RANK_PRIMARY
179 };
180 static const char *rank_names[4] = { "none", "marginal", "secondary",
181 "primary"
182 };
183 int i;
184 int best_i;
186 best_i = 0;
187 for (i = 0; i < 4; i++) {
188 if (rank == ranks[i])
189 return rank_names[i];
190 if (abs (rank - ranks[i]) < abs (rank - ranks[best_i])) {
191 best_i = i;
192 }
193 }
195 sprintf (s, "%s %c %d", rank_names[best_i],
196 (rank - ranks[best_i] > 0) ? '+' : '-', abs (ranks[best_i] - rank));
198 return s;
199 }
201 static gboolean
202 print_factory_details_meta_data (GQuark field_id, const GValue * value,
203 gpointer user_data)
204 {
205 gchar *val = g_strdup_value_contents (value);
206 gchar *key = g_strdup (g_quark_to_string (field_id));
208 key[0] = g_ascii_toupper (key[0]);
209 n_print (" %s:\t\t%s\n", key, val);
210 g_free (val);
211 g_free (key);
212 return TRUE;
213 }
215 static void
216 print_factory_details_info (GstElementFactory * factory)
217 {
218 char s[20];
220 n_print ("Factory Details:\n");
221 n_print (" Long name:\t%s\n", factory->details.longname);
222 n_print (" Class:\t%s\n", factory->details.klass);
223 n_print (" Description:\t%s\n", factory->details.description);
224 n_print (" Author(s):\t%s\n", factory->details.author);
225 n_print (" Rank:\t\t%s (%d)\n",
226 get_rank_name (s, GST_PLUGIN_FEATURE (factory)->rank),
227 GST_PLUGIN_FEATURE (factory)->rank);
228 if (factory->meta_data != NULL) {
229 gst_structure_foreach ((GstStructure *) factory->meta_data,
230 print_factory_details_meta_data, NULL);
231 }
232 n_print ("\n");
233 }
235 static void
236 print_hierarchy (GType type, gint level, gint * maxlevel)
237 {
238 GType parent;
239 gint i;
241 parent = g_type_parent (type);
243 *maxlevel = *maxlevel + 1;
244 level++;
246 if (parent)
247 print_hierarchy (parent, level, maxlevel);
249 if (_name)
250 g_print ("%s", _name);
252 for (i = 1; i < *maxlevel - level; i++)
253 g_print (" ");
254 if (*maxlevel - level)
255 g_print (" +----");
257 g_print ("%s\n", g_type_name (type));
259 if (level == 1)
260 n_print ("\n");
261 }
263 static void
264 print_interfaces (GType type)
265 {
266 guint n_ifaces;
267 GType *iface, *ifaces = g_type_interfaces (type, &n_ifaces);
269 if (ifaces) {
270 if (n_ifaces) {
271 if (_name)
272 g_print ("%s", _name);
273 g_print (_("Implemented Interfaces:\n"));
274 iface = ifaces;
275 while (*iface) {
276 if (_name)
277 g_print ("%s", _name);
278 g_print (" %s\n", g_type_name (*iface));
279 iface++;
280 }
281 if (_name)
282 g_print ("%s", _name);
283 g_print ("\n");
284 }
285 g_free (ifaces);
286 }
287 }
289 static gchar *
290 flags_to_string (GFlagsValue * vals, guint flags)
291 {
292 GString *s = NULL;
293 guint flags_left, i;
295 /* first look for an exact match and count the number of values */
296 for (i = 0; vals[i].value_name != NULL; ++i) {
297 if (vals[i].value == flags)
298 return g_strdup (vals[i].value_nick);
299 }
301 s = g_string_new (NULL);
303 /* we assume the values are sorted from lowest to highest value */
304 flags_left = flags;
305 while (i > 0) {
306 --i;
307 if (vals[i].value != 0 && (flags_left & vals[i].value) == vals[i].value) {
308 if (s->len > 0)
309 g_string_append_c (s, '+');
310 g_string_append (s, vals[i].value_nick);
311 flags_left -= vals[i].value;
312 if (flags_left == 0)
313 break;
314 }
315 }
317 if (s->len == 0)
318 g_string_assign (s, "(none)");
320 return g_string_free (s, FALSE);
321 }
323 #define KNOWN_PARAM_FLAGS \
324 (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY | \
325 G_PARAM_LAX_VALIDATION | G_PARAM_STATIC_STRINGS | \
326 G_PARAM_READABLE | G_PARAM_WRITABLE | GST_PARAM_CONTROLLABLE | \
327 GST_PARAM_MUTABLE_PLAYING | GST_PARAM_MUTABLE_PAUSED | \
328 GST_PARAM_MUTABLE_READY)
330 static void
331 print_element_properties_info (GstElement * element)
332 {
333 GParamSpec **property_specs;
334 guint num_properties, i;
335 gboolean readable;
336 gboolean first_flag;
338 property_specs = g_object_class_list_properties
339 (G_OBJECT_GET_CLASS (element), &num_properties);
340 n_print ("\n");
341 n_print ("Element Properties:\n");
343 for (i = 0; i < num_properties; i++) {
344 GValue value = { 0, };
345 GParamSpec *param = property_specs[i];
347 readable = FALSE;
349 g_value_init (&value, param->value_type);
351 n_print (" %-20s: %s\n", g_param_spec_get_name (param),
352 g_param_spec_get_blurb (param));
354 first_flag = TRUE;
355 n_print ("%-23.23s flags: ", "");
356 if (param->flags & G_PARAM_READABLE) {
357 g_object_get_property (G_OBJECT (element), param->name, &value);
358 readable = TRUE;
359 g_print ("%s%s", (first_flag) ? "" : ", ", _("readable"));
360 first_flag = FALSE;
361 }
362 if (param->flags & G_PARAM_WRITABLE) {
363 g_print ("%s%s", (first_flag) ? "" : ", ", _("writable"));
364 first_flag = FALSE;
365 }
366 if (param->flags & GST_PARAM_CONTROLLABLE) {
367 g_print (", %s", _("controllable"));
368 first_flag = FALSE;
369 }
370 if (param->flags & GST_PARAM_MUTABLE_PLAYING) {
371 g_print (", %s", _("changeable in NULL, READY, PAUSED or PLAYING state"));
372 } else if (param->flags & GST_PARAM_MUTABLE_PAUSED) {
373 g_print (", %s", _("changeable only in NULL, READY or PAUSED state"));
374 } else if (param->flags & GST_PARAM_MUTABLE_READY) {
375 g_print (", %s", _("changeable only in NULL or READY state"));
376 }
377 if (param->flags & ~KNOWN_PARAM_FLAGS) {
378 g_print ("%s0x%0x", (first_flag) ? "" : ", ",
379 param->flags & ~KNOWN_PARAM_FLAGS);
380 }
381 n_print ("\n");
383 switch (G_VALUE_TYPE (&value)) {
384 case G_TYPE_STRING:
385 {
386 GParamSpecString *pstring = G_PARAM_SPEC_STRING (param);
388 n_print ("%-23.23s String. ", "");
390 if (pstring->default_value == NULL)
391 g_print ("Default: null ");
392 else
393 g_print ("Default: \"%s\" ", pstring->default_value);
395 if (readable) {
396 const char *string_val = g_value_get_string (&value);
398 if (string_val == NULL)
399 g_print ("Current: null");
400 else
401 g_print ("Current: \"%s\"", string_val);
402 }
403 break;
404 }
405 case G_TYPE_BOOLEAN:
406 {
407 GParamSpecBoolean *pboolean = G_PARAM_SPEC_BOOLEAN (param);
409 n_print ("%-23.23s Boolean. ", "");
410 g_print ("Default: %s ", (pboolean->default_value ? "true" : "false"));
411 if (readable)
412 g_print ("Current: %s",
413 (g_value_get_boolean (&value) ? "true" : "false"));
414 break;
415 }
416 case G_TYPE_ULONG:
417 {
418 GParamSpecULong *pulong = G_PARAM_SPEC_ULONG (param);
420 n_print ("%-23.23s Unsigned Long. ", "");
421 g_print ("Range: %lu - %lu Default: %lu ",
422 pulong->minimum, pulong->maximum, pulong->default_value);
423 if (readable)
424 g_print ("Current: %lu", g_value_get_ulong (&value));
425 break;
426 }
427 case G_TYPE_LONG:
428 {
429 GParamSpecLong *plong = G_PARAM_SPEC_LONG (param);
431 n_print ("%-23.23s Long. ", "");
432 g_print ("Range: %ld - %ld Default: %ld ",
433 plong->minimum, plong->maximum, plong->default_value);
434 if (readable)
435 g_print ("Current: %ld", g_value_get_long (&value));
436 break;
437 }
438 case G_TYPE_UINT:
439 {
440 GParamSpecUInt *puint = G_PARAM_SPEC_UINT (param);
442 n_print ("%-23.23s Unsigned Integer. ", "");
443 g_print ("Range: %u - %u Default: %u ",
444 puint->minimum, puint->maximum, puint->default_value);
445 if (readable)
446 g_print ("Current: %u", g_value_get_uint (&value));
447 break;
448 }
449 case G_TYPE_INT:
450 {
451 GParamSpecInt *pint = G_PARAM_SPEC_INT (param);
453 n_print ("%-23.23s Integer. ", "");
454 g_print ("Range: %d - %d Default: %d ",
455 pint->minimum, pint->maximum, pint->default_value);
456 if (readable)
457 g_print ("Current: %d", g_value_get_int (&value));
458 break;
459 }
460 case G_TYPE_UINT64:
461 {
462 GParamSpecUInt64 *puint64 = G_PARAM_SPEC_UINT64 (param);
464 n_print ("%-23.23s Unsigned Integer64. ", "");
465 g_print ("Range: %" G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT
466 " Default: %" G_GUINT64_FORMAT " ",
467 puint64->minimum, puint64->maximum, puint64->default_value);
468 if (readable)
469 g_print ("Current: %" G_GUINT64_FORMAT, g_value_get_uint64 (&value));
470 break;
471 }
472 case G_TYPE_INT64:
473 {
474 GParamSpecInt64 *pint64 = G_PARAM_SPEC_INT64 (param);
476 n_print ("%-23.23s Integer64. ", "");
477 g_print ("Range: %" G_GINT64_FORMAT " - %" G_GINT64_FORMAT
478 " Default: %" G_GINT64_FORMAT " ",
479 pint64->minimum, pint64->maximum, pint64->default_value);
480 if (readable)
481 g_print ("Current: %" G_GINT64_FORMAT, g_value_get_int64 (&value));
482 break;
483 }
484 case G_TYPE_FLOAT:
485 {
486 GParamSpecFloat *pfloat = G_PARAM_SPEC_FLOAT (param);
488 n_print ("%-23.23s Float. ", "");
489 g_print ("Range: %15.7g - %15.7g Default: %15.7g ",
490 pfloat->minimum, pfloat->maximum, pfloat->default_value);
491 if (readable)
492 g_print ("Current: %15.7g", g_value_get_float (&value));
493 break;
494 }
495 case G_TYPE_DOUBLE:
496 {
497 GParamSpecDouble *pdouble = G_PARAM_SPEC_DOUBLE (param);
499 n_print ("%-23.23s Double. ", "");
500 g_print ("Range: %15.7g - %15.7g Default: %15.7g ",
501 pdouble->minimum, pdouble->maximum, pdouble->default_value);
502 if (readable)
503 g_print ("Current: %15.7g", g_value_get_double (&value));
504 break;
505 }
506 default:
507 if (param->value_type == GST_TYPE_CAPS) {
508 const GstCaps *caps = gst_value_get_caps (&value);
510 if (!caps)
511 n_print ("%-23.23s Caps (NULL)", "");
512 else {
513 print_caps (caps, " ");
514 }
515 } else if (G_IS_PARAM_SPEC_ENUM (param)) {
516 GParamSpecEnum *penum = G_PARAM_SPEC_ENUM (param);
517 GEnumValue *values;
518 guint j = 0;
519 gint enum_value;
520 const gchar *def_val_nick = "", *cur_val_nick = "";
522 values = G_ENUM_CLASS (g_type_class_ref (param->value_type))->values;
523 enum_value = g_value_get_enum (&value);
525 while (values[j].value_name) {
526 if (values[j].value == enum_value)
527 cur_val_nick = values[j].value_nick;
528 if (values[j].value == penum->default_value)
529 def_val_nick = values[j].value_nick;
530 j++;
531 }
533 n_print
534 ("%-23.23s Enum \"%s\" Default: %d, \"%s\" Current: %d, \"%s\"",
535 "", g_type_name (G_VALUE_TYPE (&value)), penum->default_value,
536 def_val_nick, enum_value, cur_val_nick);
538 j = 0;
539 while (values[j].value_name) {
540 g_print ("\n");
541 if (_name)
542 g_print ("%s", _name);
543 g_print ("%-23.23s (%d): %-16s - %s", "",
544 values[j].value, values[j].value_nick, values[j].value_name);
545 j++;
546 }
547 /* g_type_class_unref (ec); */
548 } else if (G_IS_PARAM_SPEC_FLAGS (param)) {
549 GParamSpecFlags *pflags = G_PARAM_SPEC_FLAGS (param);
550 GFlagsValue *vals;
551 gchar *cur, *def;
553 vals = pflags->flags_class->values;
555 cur = flags_to_string (vals, g_value_get_flags (&value));
556 def = flags_to_string (vals, pflags->default_value);
558 n_print
559 ("%-23.23s Flags \"%s\" Default: 0x%08x, \"%s\" Current: 0x%08x, \"%s\"",
560 "", g_type_name (G_VALUE_TYPE (&value)), pflags->default_value,
561 def, g_value_get_flags (&value), cur);
563 while (vals[0].value_name) {
564 g_print ("\n");
565 if (_name)
566 g_print ("%s", _name);
567 g_print ("%-23.23s (0x%08x): %-16s - %s", "",
568 vals[0].value, vals[0].value_nick, vals[0].value_name);
569 ++vals;
570 }
572 g_free (cur);
573 g_free (def);
574 } else if (G_IS_PARAM_SPEC_OBJECT (param)) {
575 n_print ("%-23.23s Object of type \"%s\"", "",
576 g_type_name (param->value_type));
577 } else if (G_IS_PARAM_SPEC_BOXED (param)) {
578 n_print ("%-23.23s Boxed pointer of type \"%s\"", "",
579 g_type_name (param->value_type));
580 } else if (G_IS_PARAM_SPEC_POINTER (param)) {
581 if (param->value_type != G_TYPE_POINTER) {
582 n_print ("%-23.23s Pointer of type \"%s\".", "",
583 g_type_name (param->value_type));
584 } else {
585 n_print ("%-23.23s Pointer.", "");
586 }
587 } else if (param->value_type == G_TYPE_VALUE_ARRAY) {
588 GParamSpecValueArray *pvarray = G_PARAM_SPEC_VALUE_ARRAY (param);
590 if (pvarray->element_spec) {
591 n_print ("%-23.23s Array of GValues of type \"%s\"", "",
592 g_type_name (pvarray->element_spec->value_type));
593 } else {
594 n_print ("%-23.23s Array of GValues", "");
595 }
596 } else if (GST_IS_PARAM_SPEC_FRACTION (param)) {
597 GstParamSpecFraction *pfraction = GST_PARAM_SPEC_FRACTION (param);
599 n_print ("%-23.23s Fraction. ", "");
601 g_print ("Range: %d/%d - %d/%d Default: %d/%d ",
602 pfraction->min_num, pfraction->min_den,
603 pfraction->max_num, pfraction->max_den,
604 pfraction->def_num, pfraction->def_den);
605 if (readable)
606 g_print ("Current: %d/%d",
607 gst_value_get_fraction_numerator (&value),
608 gst_value_get_fraction_denominator (&value));
610 } else if (GST_IS_PARAM_SPEC_MINI_OBJECT (param)) {
611 n_print ("%-23.23s MiniObject of type \"%s\"", "",
612 g_type_name (param->value_type));
613 } else {
614 n_print ("%-23.23s Unknown type %ld \"%s\"", "", param->value_type,
615 g_type_name (param->value_type));
616 }
617 break;
618 }
619 if (!readable)
620 g_print (" Write only\n");
621 else
622 g_print ("\n");
624 g_value_reset (&value);
625 }
626 if (num_properties == 0)
627 n_print (" none\n");
629 g_free (property_specs);
630 }
632 static void
633 print_pad_templates_info (GstElement * element, GstElementFactory * factory)
634 {
635 GstElementClass *gstelement_class;
636 const GList *pads;
637 GstStaticPadTemplate *padtemplate;
639 n_print ("Pad Templates:\n");
640 if (!factory->numpadtemplates) {
641 n_print (" none\n");
642 return;
643 }
645 gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element));
647 pads = factory->staticpadtemplates;
648 while (pads) {
649 padtemplate = (GstStaticPadTemplate *) (pads->data);
650 pads = g_list_next (pads);
652 if (padtemplate->direction == GST_PAD_SRC)
653 n_print (" SRC template: '%s'\n", padtemplate->name_template);
654 else if (padtemplate->direction == GST_PAD_SINK)
655 n_print (" SINK template: '%s'\n", padtemplate->name_template);
656 else
657 n_print (" UNKNOWN!!! template: '%s'\n", padtemplate->name_template);
659 if (padtemplate->presence == GST_PAD_ALWAYS)
660 n_print (" Availability: Always\n");
661 else if (padtemplate->presence == GST_PAD_SOMETIMES)
662 n_print (" Availability: Sometimes\n");
663 else if (padtemplate->presence == GST_PAD_REQUEST) {
664 n_print (" Availability: On request\n");
665 n_print (" Has request_new_pad() function: %s\n",
666 GST_DEBUG_FUNCPTR_NAME (gstelement_class->request_new_pad));
667 } else
668 n_print (" Availability: UNKNOWN!!!\n");
670 if (padtemplate->static_caps.string) {
671 n_print (" Capabilities:\n");
672 print_caps (gst_static_caps_get (&padtemplate->static_caps), " ");
673 }
675 n_print ("\n");
676 }
677 }
679 static void
680 print_element_flag_info (GstElement * element)
681 {
682 gboolean have_flags = FALSE;
684 n_print ("\n");
685 n_print ("Element Flags:\n");
687 if (!have_flags)
688 n_print (" no flags set\n");
690 if (GST_IS_BIN (element)) {
691 n_print ("\n");
692 n_print ("Bin Flags:\n");
693 if (!have_flags)
694 n_print (" no flags set\n");
695 }
696 }
698 static void
699 print_implementation_info (GstElement * element)
700 {
701 GstObjectClass *gstobject_class;
702 GstElementClass *gstelement_class;
704 gstobject_class = GST_OBJECT_CLASS (G_OBJECT_GET_CLASS (element));
705 gstelement_class = GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS (element));
707 n_print ("\n");
708 n_print ("Element Implementation:\n");
710 n_print (" Has change_state() function: %s\n",
711 GST_DEBUG_FUNCPTR_NAME (gstelement_class->change_state));
712 #ifndef GST_DISABLE_LOADSAVE
713 n_print (" Has custom save_thyself() function: %s\n",
714 GST_DEBUG_FUNCPTR_NAME (gstobject_class->save_thyself));
715 n_print (" Has custom restore_thyself() function: %s\n",
716 GST_DEBUG_FUNCPTR_NAME (gstobject_class->restore_thyself));
717 #endif
718 }
720 static void
721 print_clocking_info (GstElement * element)
722 {
723 if (!gst_element_requires_clock (element) &&
724 !(gst_element_provides_clock (element) &&
725 gst_element_get_clock (element))) {
726 n_print ("\n");
727 n_print ("Element has no clocking capabilities.");
728 return;
729 }
731 n_print ("\n");
732 n_print ("Clocking Interaction:\n");
733 if (gst_element_requires_clock (element)) {
734 n_print (" element requires a clock\n");
735 }
737 if (gst_element_provides_clock (element)) {
738 GstClock *clock;
740 clock = gst_element_get_clock (element);
741 if (clock)
742 n_print (" element provides a clock: %s\n", GST_OBJECT_NAME (clock));
743 else
744 n_print (" element is supposed to provide a clock but returned NULL\n");
745 }
746 }
748 static void
749 print_index_info (GstElement * element)
750 {
751 if (gst_element_is_indexable (element)) {
752 n_print ("\n");
753 n_print ("Indexing capabilities:\n");
754 n_print (" element can do indexing\n");
755 } else {
756 n_print ("\n");
757 n_print ("Element has no indexing capabilities.\n");
758 }
759 }
761 static void
762 print_uri_handler_info (GstElement * element)
763 {
764 if (GST_IS_URI_HANDLER (element)) {
765 const gchar *uri_type;
766 gchar **uri_protocols;
768 if (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element)) == GST_URI_SRC)
769 uri_type = "source";
770 else if (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element)) ==
771 GST_URI_SINK)
772 uri_type = "sink";
773 else
774 uri_type = "unknown";
776 uri_protocols = gst_uri_handler_get_protocols (GST_URI_HANDLER (element));
778 n_print ("\n");
779 n_print ("URI handling capabilities:\n");
780 n_print (" Element can act as %s.\n", uri_type);
782 if (uri_protocols && *uri_protocols) {
783 n_print (" Supported URI protocols:\n");
784 for (; *uri_protocols != NULL; uri_protocols++)
785 n_print (" %s\n", *uri_protocols);
786 } else {
787 n_print (" No supported URI protocols\n");
788 }
789 } else {
790 n_print ("Element has no URI handling capabilities.\n");
791 }
792 }
794 static void
795 print_pad_info (GstElement * element)
796 {
797 const GList *pads;
798 GstPad *pad;
800 n_print ("\n");
801 n_print ("Pads:\n");
803 if (!element->numpads) {
804 n_print (" none\n");
805 return;
806 }
808 pads = element->pads;
809 while (pads) {
810 gchar *name;
812 pad = GST_PAD (pads->data);
813 pads = g_list_next (pads);
815 n_print ("");
817 name = gst_pad_get_name (pad);
818 if (gst_pad_get_direction (pad) == GST_PAD_SRC)
819 g_print (" SRC: '%s'", name);
820 else if (gst_pad_get_direction (pad) == GST_PAD_SINK)
821 g_print (" SINK: '%s'", name);
822 else
823 g_print (" UNKNOWN!!!: '%s'", name);
825 g_free (name);
827 g_print ("\n");
829 n_print (" Implementation:\n");
830 if (pad->chainfunc)
831 n_print (" Has chainfunc(): %s\n",
832 GST_DEBUG_FUNCPTR_NAME (pad->chainfunc));
833 if (pad->getrangefunc)
834 n_print (" Has getrangefunc(): %s\n",
835 GST_DEBUG_FUNCPTR_NAME (pad->getrangefunc));
836 if (pad->eventfunc != gst_pad_event_default)
837 n_print (" Has custom eventfunc(): %s\n",
838 GST_DEBUG_FUNCPTR_NAME (pad->eventfunc));
839 if (pad->queryfunc != gst_pad_query_default)
840 n_print (" Has custom queryfunc(): %s\n",
841 GST_DEBUG_FUNCPTR_NAME (pad->queryfunc));
842 if (pad->querytypefunc != gst_pad_get_query_types_default) {
843 const GstQueryType *query_types = gst_pad_get_query_types (pad);
844 if (query_types) {
845 n_print (" Provides query types:\n");
846 print_query_types (query_types);
847 }
848 }
850 if (pad->iterintlinkfunc != gst_pad_iterate_internal_links_default)
851 n_print (" Has custom iterintlinkfunc(): %s\n",
852 GST_DEBUG_FUNCPTR_NAME (pad->iterintlinkfunc));
854 if (pad->bufferallocfunc)
855 n_print (" Has bufferallocfunc(): %s\n",
856 GST_DEBUG_FUNCPTR_NAME (pad->bufferallocfunc));
858 if (pad->getcapsfunc)
859 n_print (" Has getcapsfunc(): %s\n",
860 GST_DEBUG_FUNCPTR_NAME (pad->getcapsfunc));
861 if (pad->setcapsfunc)
862 n_print (" Has setcapsfunc(): %s\n",
863 GST_DEBUG_FUNCPTR_NAME (pad->setcapsfunc));
864 /* gst_pad_acceptcaps_default is static :/ */
865 if (pad->acceptcapsfunc)
866 n_print (" Has acceptcapsfunc(): %s\n",
867 GST_DEBUG_FUNCPTR_NAME (pad->acceptcapsfunc));
868 if (pad->fixatecapsfunc)
869 n_print (" Has fixatecapsfunc(): %s\n",
870 GST_DEBUG_FUNCPTR_NAME (pad->fixatecapsfunc));
873 if (pad->padtemplate)
874 n_print (" Pad Template: '%s'\n", pad->padtemplate->name_template);
876 if (pad->caps) {
877 n_print (" Capabilities:\n");
878 print_caps (pad->caps, " ");
879 }
880 }
881 }
883 static gboolean
884 has_sometimes_template (GstElement * element)
885 {
886 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
887 GList *l;
889 for (l = klass->padtemplates; l != NULL; l = l->next) {
890 if (GST_PAD_TEMPLATE (l->data)->presence == GST_PAD_SOMETIMES)
891 return TRUE;
892 }
894 return FALSE;
895 }
897 static void
898 print_signal_info (GstElement * element)
899 {
900 /* Signals/Actions Block */
901 guint *signals;
902 guint nsignals;
903 gint i = 0, j, k;
904 GSignalQuery *query = NULL;
905 GType type;
906 GSList *found_signals, *l;
908 for (k = 0; k < 2; k++) {
909 found_signals = NULL;
911 /* For elements that have sometimes pads, also list a few useful GstElement
912 * signals. Put these first, so element-specific ones come later. */
913 if (k == 0 && has_sometimes_template (element)) {
914 query = g_new0 (GSignalQuery, 1);
915 g_signal_query (g_signal_lookup ("pad-added", GST_TYPE_ELEMENT), query);
916 found_signals = g_slist_append (found_signals, query);
917 query = g_new0 (GSignalQuery, 1);
918 g_signal_query (g_signal_lookup ("pad-removed", GST_TYPE_ELEMENT), query);
919 found_signals = g_slist_append (found_signals, query);
920 query = g_new0 (GSignalQuery, 1);
921 g_signal_query (g_signal_lookup ("no-more-pads", GST_TYPE_ELEMENT),
922 query);
923 found_signals = g_slist_append (found_signals, query);
924 }
926 for (type = G_OBJECT_TYPE (element); type; type = g_type_parent (type)) {
927 if (type == GST_TYPE_ELEMENT || type == GST_TYPE_OBJECT)
928 break;
930 if (type == GST_TYPE_BIN && G_OBJECT_TYPE (element) != GST_TYPE_BIN)
931 continue;
933 signals = g_signal_list_ids (type, &nsignals);
934 for (i = 0; i < nsignals; i++) {
935 query = g_new0 (GSignalQuery, 1);
936 g_signal_query (signals[i], query);
938 if ((k == 0 && !(query->signal_flags & G_SIGNAL_ACTION)) ||
939 (k == 1 && (query->signal_flags & G_SIGNAL_ACTION)))
940 found_signals = g_slist_append (found_signals, query);
941 else
942 g_free (query);
943 }
944 g_free (signals);
945 signals = NULL;
946 }
948 if (found_signals) {
949 n_print ("\n");
950 if (k == 0)
951 n_print ("Element Signals:\n");
952 else
953 n_print ("Element Actions:\n");
954 } else {
955 continue;
956 }
958 for (l = found_signals; l; l = l->next) {
959 gchar *indent;
960 int indent_len;
962 query = (GSignalQuery *) l->data;
963 indent_len = strlen (query->signal_name) +
964 strlen (g_type_name (query->return_type)) + 24;
966 indent = g_new0 (gchar, indent_len + 1);
967 memset (indent, ' ', indent_len);
969 n_print (" \"%s\" : %s user_function (%s* object",
970 query->signal_name,
971 g_type_name (query->return_type), g_type_name (type));
973 for (j = 0; j < query->n_params; j++) {
974 if (_name)
975 g_print ("%s", _name);
976 if (G_TYPE_IS_FUNDAMENTAL (query->param_types[j])) {
977 g_print (",\n%s%s arg%d", indent,
978 g_type_name (query->param_types[j]), j);
979 } else if (G_TYPE_IS_ENUM (query->param_types[j])) {
980 g_print (",\n%s%s arg%d", indent,
981 g_type_name (query->param_types[j]), j);
982 } else {
983 g_print (",\n%s%s* arg%d", indent,
984 g_type_name (query->param_types[j]), j);
985 }
986 }
988 if (k == 0) {
989 if (_name)
990 g_print ("%s", _name);
991 g_print (",\n%sgpointer user_data);\n", indent);
992 } else
993 g_print (");\n");
995 g_free (indent);
996 }
998 if (found_signals) {
999 g_slist_foreach (found_signals, (GFunc) g_free, NULL);
1000 g_slist_free (found_signals);
1001 }
1002 }
1003 }
1005 static void
1006 print_children_info (GstElement * element)
1007 {
1008 GList *children;
1010 if (!GST_IS_BIN (element))
1011 return;
1013 children = (GList *) GST_BIN (element)->children;
1014 if (children) {
1015 n_print ("\n");
1016 g_print ("Children:\n");
1017 }
1019 while (children) {
1020 n_print (" %s\n", GST_ELEMENT_NAME (GST_ELEMENT (children->data)));
1021 children = g_list_next (children);
1022 }
1023 }
1025 static void
1026 print_blacklist (void)
1027 {
1028 GList *plugins, *cur;
1029 gint count = 0;
1031 g_print ("%s\n", _("Blacklisted files:"));
1033 plugins = gst_default_registry_get_plugin_list ();
1034 for (cur = plugins; cur != NULL; cur = g_list_next (cur)) {
1035 GstPlugin *plugin = (GstPlugin *) (cur->data);
1036 if (plugin->flags & GST_PLUGIN_FLAG_BLACKLISTED) {
1037 g_print (" %s\n", plugin->desc.name);
1038 count++;
1039 }
1040 }
1042 g_print ("\n");
1043 g_print (_("Total count: "));
1044 g_print (ngettext ("%d blacklisted file", "%d blacklisted files", count),
1045 count);
1046 g_print ("\n");
1047 gst_plugin_list_free (plugins);
1048 }
1050 static void
1051 print_element_list (gboolean print_all)
1052 {
1053 int plugincount = 0, featurecount = 0, blacklistcount = 0;
1054 GList *plugins, *orig_plugins;
1056 orig_plugins = plugins = gst_default_registry_get_plugin_list ();
1057 while (plugins) {
1058 GList *features, *orig_features;
1059 GstPlugin *plugin;
1061 plugin = (GstPlugin *) (plugins->data);
1062 plugins = g_list_next (plugins);
1063 plugincount++;
1065 if (plugin->flags & GST_PLUGIN_FLAG_BLACKLISTED) {
1066 blacklistcount++;
1067 continue;
1068 }
1070 orig_features = features =
1071 gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
1072 plugin->desc.name);
1073 while (features) {
1074 GstPluginFeature *feature;
1076 if (G_UNLIKELY (features->data == NULL))
1077 goto next;
1078 feature = GST_PLUGIN_FEATURE (features->data);
1079 featurecount++;
1081 if (GST_IS_ELEMENT_FACTORY (feature)) {
1082 GstElementFactory *factory;
1084 factory = GST_ELEMENT_FACTORY (feature);
1085 if (print_all)
1086 print_element_info (factory, TRUE);
1087 else
1088 g_print ("%s: %s: %s\n", plugin->desc.name,
1089 GST_PLUGIN_FEATURE_NAME (factory),
1090 gst_element_factory_get_longname (factory));
1091 } else if (GST_IS_INDEX_FACTORY (feature)) {
1092 GstIndexFactory *factory;
1094 factory = GST_INDEX_FACTORY (feature);
1095 if (!print_all)
1096 g_print ("%s: %s: %s\n", plugin->desc.name,
1097 GST_PLUGIN_FEATURE_NAME (factory), factory->longdesc);
1098 } else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
1099 GstTypeFindFactory *factory;
1101 factory = GST_TYPE_FIND_FACTORY (feature);
1102 if (!print_all)
1103 g_print ("%s: %s: ", plugin->desc.name,
1104 gst_plugin_feature_get_name (feature));
1105 if (factory->extensions) {
1106 guint i = 0;
1108 while (factory->extensions[i]) {
1109 if (!print_all)
1110 g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]);
1111 i++;
1112 }
1113 if (!print_all)
1114 g_print ("\n");
1115 } else {
1116 if (!print_all)
1117 g_print ("no extensions\n");
1118 }
1119 } else {
1120 if (!print_all)
1121 n_print ("%s: %s (%s)\n", plugin->desc.name,
1122 GST_PLUGIN_FEATURE_NAME (feature),
1123 g_type_name (G_OBJECT_TYPE (feature)));
1124 }
1126 next:
1127 features = g_list_next (features);
1128 }
1130 gst_plugin_feature_list_free (orig_features);
1131 }
1133 gst_plugin_list_free (orig_plugins);
1135 g_print ("\n");
1136 g_print (_("Total count: "));
1137 g_print (ngettext ("%d plugin", "%d plugins", plugincount), plugincount);
1138 if (blacklistcount) {
1139 g_print (" (");
1140 g_print (ngettext ("%d blacklist entry", "%d blacklist entries",
1141 blacklistcount), blacklistcount);
1142 g_print (" not shown)");
1143 }
1144 g_print (", ");
1145 g_print (ngettext ("%d feature", "%d features", featurecount), featurecount);
1146 g_print ("\n");
1147 }
1149 static void
1150 print_all_uri_handlers (void)
1151 {
1152 GList *plugins, *p, *features, *f;
1154 plugins = gst_default_registry_get_plugin_list ();
1156 for (p = plugins; p; p = p->next) {
1157 GstPlugin *plugin = (GstPlugin *) (p->data);
1159 features =
1160 gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
1161 plugin->desc.name);
1163 for (f = features; f; f = f->next) {
1164 GstPluginFeature *feature = GST_PLUGIN_FEATURE (f->data);
1166 if (GST_IS_ELEMENT_FACTORY (feature)) {
1167 GstElementFactory *factory;
1168 GstElement *element;
1170 factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (feature));
1171 if (!factory) {
1172 g_print ("element plugin %s couldn't be loaded\n", plugin->desc.name);
1173 continue;
1174 }
1176 element = gst_element_factory_create (factory, NULL);
1177 if (!element) {
1178 g_print ("couldn't construct element for %s for some reason\n",
1179 GST_OBJECT_NAME (factory));
1180 gst_object_unref (factory);
1181 continue;
1182 }
1184 if (GST_IS_URI_HANDLER (element)) {
1185 const gchar *dir;
1186 gchar **uri_protocols, *joined;
1188 switch (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element))) {
1189 case GST_URI_SRC:
1190 dir = "read";
1191 break;
1192 case GST_URI_SINK:
1193 dir = "write";
1194 break;
1195 default:
1196 dir = "unknown";
1197 break;
1198 }
1200 uri_protocols =
1201 gst_uri_handler_get_protocols (GST_URI_HANDLER (element));
1202 joined = g_strjoinv (", ", uri_protocols);
1204 g_print ("%s (%s, rank %u): %s\n",
1205 gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)), dir,
1206 gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)),
1207 joined);
1209 g_free (joined);
1210 }
1212 gst_object_unref (element);
1213 gst_object_unref (factory);
1214 }
1215 }
1217 gst_plugin_feature_list_free (features);
1218 }
1220 gst_plugin_list_free (plugins);
1221 }
1223 static void
1224 print_plugin_info (GstPlugin * plugin)
1225 {
1226 n_print ("Plugin Details:\n");
1227 n_print (" Name:\t\t\t%s\n", plugin->desc.name);
1228 n_print (" Description:\t\t%s\n", plugin->desc.description);
1229 n_print (" Filename:\t\t%s\n",
1230 plugin->filename ? plugin->filename : "(null)");
1231 n_print (" Version:\t\t%s\n", plugin->desc.version);
1232 n_print (" License:\t\t%s\n", plugin->desc.license);
1233 n_print (" Source module:\t%s\n", plugin->desc.source);
1234 if (plugin->desc.release_datetime != NULL) {
1235 const gchar *tz = "(UTC)";
1236 gchar *str, *sep;
1238 /* may be: YYYY-MM-DD or YYYY-MM-DDTHH:MMZ */
1239 /* YYYY-MM-DDTHH:MMZ => YYYY-MM-DD HH:MM (UTC) */
1240 str = g_strdup (plugin->desc.release_datetime);
1241 sep = strstr (str, "T");
1242 if (sep != NULL) {
1243 *sep = ' ';
1244 sep = strstr (sep + 1, "Z");
1245 if (sep != NULL)
1246 *sep = ' ';
1247 } else {
1248 tz = "";
1249 }
1250 n_print (" Source release date:\t%s%s\n", str, tz);
1251 g_free (str);
1252 }
1253 n_print (" Binary package:\t%s\n", plugin->desc.package);
1254 n_print (" Origin URL:\t\t%s\n", plugin->desc.origin);
1255 n_print ("\n");
1256 }
1258 static void
1259 print_plugin_features (GstPlugin * plugin)
1260 {
1261 GList *features;
1262 gint num_features = 0;
1263 gint num_elements = 0;
1264 gint num_typefinders = 0;
1265 gint num_indexes = 0;
1266 gint num_other = 0;
1268 features =
1269 gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
1270 plugin->desc.name);
1272 while (features) {
1273 GstPluginFeature *feature;
1275 feature = GST_PLUGIN_FEATURE (features->data);
1277 if (GST_IS_ELEMENT_FACTORY (feature)) {
1278 GstElementFactory *factory;
1280 factory = GST_ELEMENT_FACTORY (feature);
1281 n_print (" %s: %s\n", GST_PLUGIN_FEATURE_NAME (factory),
1282 gst_element_factory_get_longname (factory));
1283 num_elements++;
1284 } else if (GST_IS_INDEX_FACTORY (feature)) {
1285 GstIndexFactory *factory;
1287 factory = GST_INDEX_FACTORY (feature);
1288 n_print (" %s: %s\n", GST_OBJECT_NAME (factory), factory->longdesc);
1289 num_indexes++;
1290 } else if (GST_IS_TYPE_FIND_FACTORY (feature)) {
1291 GstTypeFindFactory *factory;
1293 factory = GST_TYPE_FIND_FACTORY (feature);
1294 if (factory->extensions) {
1295 guint i = 0;
1297 g_print ("%s: %s: ", plugin->desc.name,
1298 gst_plugin_feature_get_name (feature));
1299 while (factory->extensions[i]) {
1300 g_print ("%s%s", i > 0 ? ", " : "", factory->extensions[i]);
1301 i++;
1302 }
1303 g_print ("\n");
1304 } else
1305 g_print ("%s: %s: no extensions\n", plugin->desc.name,
1306 gst_plugin_feature_get_name (feature));
1308 num_typefinders++;
1309 } else if (feature) {
1310 n_print (" %s (%s)\n", gst_object_get_name (GST_OBJECT (feature)),
1311 g_type_name (G_OBJECT_TYPE (feature)));
1312 num_other++;
1313 }
1314 num_features++;
1315 features = g_list_next (features);
1316 }
1317 n_print ("\n");
1318 n_print (" %d features:\n", num_features);
1319 if (num_elements > 0)
1320 n_print (" +-- %d elements\n", num_elements);
1321 if (num_typefinders > 0)
1322 n_print (" +-- %d typefinders\n", num_typefinders);
1323 if (num_indexes > 0)
1324 n_print (" +-- %d indexes\n", num_indexes);
1325 if (num_other > 0)
1326 n_print (" +-- %d other objects\n", num_other);
1328 n_print ("\n");
1329 }
1331 static int
1332 print_element_features (const gchar * element_name)
1333 {
1334 GstPluginFeature *feature;
1336 /* FIXME implement other pretty print function for these */
1337 feature = gst_default_registry_find_feature (element_name,
1338 GST_TYPE_INDEX_FACTORY);
1339 if (feature) {
1340 n_print ("%s: an index\n", element_name);
1341 return 0;
1342 }
1343 feature = gst_default_registry_find_feature (element_name,
1344 GST_TYPE_TYPE_FIND_FACTORY);
1345 if (feature) {
1346 n_print ("%s: a typefind function\n", element_name);
1347 return 0;
1348 }
1350 return -1;
1351 }
1353 static int
1354 print_element_info (GstElementFactory * factory, gboolean print_names)
1355 {
1356 GstElement *element;
1357 gint maxlevel = 0;
1359 factory =
1360 GST_ELEMENT_FACTORY (gst_plugin_feature_load (GST_PLUGIN_FEATURE
1361 (factory)));
1363 if (!factory) {
1364 g_print ("element plugin couldn't be loaded\n");
1365 return -1;
1366 }
1368 element = gst_element_factory_create (factory, NULL);
1369 if (!element) {
1370 g_print ("couldn't construct element for some reason\n");
1371 return -1;
1372 }
1374 if (print_names)
1375 _name = g_strdup_printf ("%s: ", GST_PLUGIN_FEATURE (factory)->name);
1376 else
1377 _name = NULL;
1379 print_factory_details_info (factory);
1380 if (GST_PLUGIN_FEATURE (factory)->plugin_name) {
1381 GstPlugin *plugin;
1383 plugin = gst_registry_find_plugin (gst_registry_get_default (),
1384 GST_PLUGIN_FEATURE (factory)->plugin_name);
1385 if (plugin) {
1386 print_plugin_info (plugin);
1387 }
1388 }
1390 print_hierarchy (G_OBJECT_TYPE (element), 0, &maxlevel);
1391 print_interfaces (G_OBJECT_TYPE (element));
1393 print_pad_templates_info (element, factory);
1394 print_element_flag_info (element);
1395 print_implementation_info (element);
1396 print_clocking_info (element);
1397 print_index_info (element);
1398 print_uri_handler_info (element);
1399 print_pad_info (element);
1400 print_element_properties_info (element);
1401 print_signal_info (element);
1402 print_children_info (element);
1404 gst_object_unref (element);
1405 gst_object_unref (factory);
1406 g_free (_name);
1408 return 0;
1409 }
1412 static void
1413 print_plugin_automatic_install_info_codecs (GstElementFactory * factory)
1414 {
1415 GstPadDirection direction;
1416 const gchar *type_name;
1417 const gchar *klass;
1418 const GList *static_templates, *l;
1419 GstCaps *caps = NULL;
1420 guint i, num;
1422 klass = gst_element_factory_get_klass (factory);
1423 g_return_if_fail (klass != NULL);
1425 if (strstr (klass, "Demuxer") ||
1426 strstr (klass, "Decoder") ||
1427 strstr (klass, "Depay") || strstr (klass, "Parser")) {
1428 type_name = "decoder";
1429 direction = GST_PAD_SINK;
1430 } else if (strstr (klass, "Muxer") ||
1431 strstr (klass, "Encoder") || strstr (klass, "Pay")) {
1432 type_name = "encoder";
1433 direction = GST_PAD_SRC;
1434 } else {
1435 return;
1436 }
1438 /* decoder/demuxer sink pads should always be static and there should only
1439 * be one, the same applies to encoders/muxers and source pads */
1440 static_templates = gst_element_factory_get_static_pad_templates (factory);
1441 for (l = static_templates; l != NULL; l = l->next) {
1442 GstStaticPadTemplate *tmpl = NULL;
1444 tmpl = (GstStaticPadTemplate *) l->data;
1445 if (tmpl->direction == direction) {
1446 caps = gst_static_pad_template_get_caps (tmpl);
1447 break;
1448 }
1449 }
1451 if (caps == NULL) {
1452 g_printerr ("Couldn't find static pad template for %s '%s'\n",
1453 type_name, GST_PLUGIN_FEATURE_NAME (factory));
1454 return;
1455 }
1457 caps = gst_caps_make_writable (caps);
1458 num = gst_caps_get_size (caps);
1459 for (i = 0; i < num; ++i) {
1460 GstStructure *s;
1461 gchar *s_str;
1463 s = gst_caps_get_structure (caps, i);
1464 /* remove fields that are almost always just MIN-MAX of some sort
1465 * in order to make the caps look less messy */
1466 gst_structure_remove_field (s, "pixel-aspect-ratio");
1467 gst_structure_remove_field (s, "framerate");
1468 gst_structure_remove_field (s, "channels");
1469 gst_structure_remove_field (s, "width");
1470 gst_structure_remove_field (s, "height");
1471 gst_structure_remove_field (s, "rate");
1472 gst_structure_remove_field (s, "depth");
1473 gst_structure_remove_field (s, "clock-rate");
1474 s_str = gst_structure_to_string (s);
1475 g_print ("%s-%s\n", type_name, s_str);
1476 g_free (s_str);
1477 }
1478 gst_caps_unref (caps);
1479 }
1481 static void
1482 print_plugin_automatic_install_info_protocols (GstElementFactory * factory)
1483 {
1484 gchar **protocols, **p;
1486 protocols = gst_element_factory_get_uri_protocols (factory);
1487 if (protocols != NULL && *protocols != NULL) {
1488 switch (gst_element_factory_get_uri_type (factory)) {
1489 case GST_URI_SINK:
1490 for (p = protocols; *p != NULL; ++p)
1491 g_print ("urisink-%s\n", *p);
1492 break;
1493 case GST_URI_SRC:
1494 for (p = protocols; *p != NULL; ++p)
1495 g_print ("urisource-%s\n", *p);
1496 break;
1497 default:
1498 break;
1499 }
1500 g_strfreev (protocols);
1501 }
1502 }
1504 static void
1505 print_plugin_automatic_install_info (GstPlugin * plugin)
1506 {
1507 const gchar *plugin_name;
1508 GList *features, *l;
1510 plugin_name = gst_plugin_get_name (plugin);
1512 /* not interested in typefind factories, only element factories */
1513 features = gst_registry_get_feature_list (gst_registry_get_default (),
1514 GST_TYPE_ELEMENT_FACTORY);
1516 for (l = features; l != NULL; l = l->next) {
1517 GstPluginFeature *feature;
1519 feature = GST_PLUGIN_FEATURE (l->data);
1521 /* only interested in the ones that are in the plugin we just loaded */
1522 if (g_str_equal (plugin_name, feature->plugin_name)) {
1523 GstElementFactory *factory;
1525 g_print ("element-%s\n", gst_plugin_feature_get_name (feature));
1527 factory = GST_ELEMENT_FACTORY (feature);
1528 print_plugin_automatic_install_info_protocols (factory);
1529 print_plugin_automatic_install_info_codecs (factory);
1530 }
1531 }
1533 g_list_foreach (features, (GFunc) gst_object_unref, NULL);
1534 g_list_free (features);
1535 }
1537 static void
1538 print_all_plugin_automatic_install_info (void)
1539 {
1540 GList *plugins, *orig_plugins;
1542 orig_plugins = plugins = gst_default_registry_get_plugin_list ();
1543 while (plugins) {
1544 GstPlugin *plugin;
1546 plugin = (GstPlugin *) (plugins->data);
1547 plugins = g_list_next (plugins);
1549 print_plugin_automatic_install_info (plugin);
1550 }
1551 gst_plugin_list_free (orig_plugins);
1552 }
1554 int
1555 main (int argc, char *argv[])
1556 {
1557 gboolean print_all = FALSE;
1558 gboolean do_print_blacklist = FALSE;
1559 gboolean plugin_name = FALSE;
1560 gboolean print_aii = FALSE;
1561 gboolean uri_handlers = FALSE;
1562 #ifndef GST_DISABLE_OPTION_PARSING
1563 GOptionEntry options[] = {
1564 {"print-all", 'a', 0, G_OPTION_ARG_NONE, &print_all,
1565 N_("Print all elements"), NULL},
1566 {"print-blacklist", 'b', 0, G_OPTION_ARG_NONE, &do_print_blacklist,
1567 N_("Print list of blacklisted files"), NULL},
1568 {"print-plugin-auto-install-info", '\0', 0, G_OPTION_ARG_NONE, &print_aii,
1569 N_("Print a machine-parsable list of features the specified plugin "
1570 "or all plugins provide.\n "
1571 "Useful in connection with external automatic plugin "
1572 "installation mechanisms"), NULL},
1573 {"plugin", '\0', 0, G_OPTION_ARG_NONE, &plugin_name,
1574 N_("List the plugin contents"), NULL},
1575 {"uri-handlers", 'u', 0, G_OPTION_ARG_NONE, &uri_handlers,
1576 N_
1577 ("Print supported URI schemes, with the elements that implement them"),
1578 NULL},
1579 GST_TOOLS_GOPTION_VERSION,
1580 {NULL}
1581 };
1582 GOptionContext *ctx;
1583 GError *err = NULL;
1584 #endif
1586 #ifdef ENABLE_NLS
1587 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
1588 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1589 textdomain (GETTEXT_PACKAGE);
1590 #endif
1592 g_thread_init (NULL);
1594 gst_tools_set_prgname ("gst-inspect");
1596 #ifndef GST_DISABLE_OPTION_PARSING
1597 ctx = g_option_context_new ("[ELEMENT-NAME | PLUGIN-NAME]");
1598 g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE);
1599 g_option_context_add_group (ctx, gst_init_get_option_group ());
1600 if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
1601 g_print ("Error initializing: %s\n", err->message);
1602 exit (1);
1603 }
1604 g_option_context_free (ctx);
1605 #else
1606 gst_init (&argc, &argv);
1607 #endif
1609 gst_tools_print_version ("gst-inspect");
1611 if (print_all && argc > 1) {
1612 g_print ("-a requires no extra arguments\n");
1613 return 1;
1614 }
1616 if (uri_handlers && argc > 1) {
1617 g_print ("-u requires no extra arguments\n");
1618 exit (1);
1619 }
1621 /* if no arguments, print out list of elements */
1622 if (uri_handlers) {
1623 print_all_uri_handlers ();
1624 } else if (argc == 1 || print_all) {
1625 if (do_print_blacklist)
1626 print_blacklist ();
1627 else {
1628 if (print_aii)
1629 print_all_plugin_automatic_install_info ();
1630 else
1631 print_element_list (print_all);
1632 }
1633 } else {
1634 /* else we try to get a factory */
1635 GstElementFactory *factory;
1636 GstPlugin *plugin;
1637 const char *arg = argv[argc - 1];
1638 int retval;
1640 if (!plugin_name) {
1641 factory = gst_element_factory_find (arg);
1643 /* if there's a factory, print out the info */
1644 if (factory) {
1645 retval = print_element_info (factory, print_all);
1646 gst_object_unref (factory);
1647 } else {
1648 retval = print_element_features (arg);
1649 }
1650 } else {
1651 retval = -1;
1652 }
1654 /* otherwise check if it's a plugin */
1655 if (retval) {
1656 plugin = gst_default_registry_find_plugin (arg);
1658 /* if there is such a plugin, print out info */
1659 if (plugin) {
1660 if (print_aii) {
1661 print_plugin_automatic_install_info (plugin);
1662 } else {
1663 print_plugin_info (plugin);
1664 print_plugin_features (plugin);
1665 }
1666 } else {
1667 GError *error = NULL;
1669 if (g_file_test (arg, G_FILE_TEST_EXISTS)) {
1670 plugin = gst_plugin_load_file (arg, &error);
1672 if (plugin) {
1673 if (print_aii) {
1674 print_plugin_automatic_install_info (plugin);
1675 } else {
1676 print_plugin_info (plugin);
1677 print_plugin_features (plugin);
1678 }
1679 } else {
1680 g_print (_("Could not load plugin file: %s\n"), error->message);
1681 g_error_free (error);
1682 return -1;
1683 }
1684 } else {
1685 g_print (_("No such element or plugin '%s'\n"), arg);
1686 return -1;
1687 }
1688 }
1689 }
1690 }
1692 return 0;
1693 }