2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
4 * 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
5 * Copyright (C) 2008-2009 Tim-Philipp Müller <tim centricular net>
7 * gstinfo.c: debugging functions
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
27 * @short_description: Debugging and logging facilities
28 * @see_also: #gstreamer-gstconfig, #gstreamer-Gst for command line parameters
29 * and environment variables that affect the debugging output.
31 * GStreamer's debugging subsystem is an easy way to get information about what
32 * the application is doing. It is not meant for programming errors. Use GLib
33 * methods (g_warning and friends) for that.
35 * The debugging subsystem works only after GStreamer has been initialized
36 * - for example by calling gst_init().
38 * The debugging subsystem is used to log informational messages while the
39 * application runs. Each messages has some properties attached to it. Among
40 * these properties are the debugging category, the severity (called "level"
41 * here) and an optional #GObject it belongs to. Each of these messages is sent
42 * to all registered debugging handlers, which then handle the messages.
43 * GStreamer attaches a default handler on startup, which outputs requested
46 * Messages are output by using shortcut macros like #GST_DEBUG,
47 * #GST_CAT_ERROR_OBJECT or similar. These all expand to calling gst_debug_log()
48 * with the right parameters.
49 * The only thing a developer will probably want to do is define his own
50 * categories. This is easily done with 3 lines. At the top of your code,
52 * the variables and set the default category.
55 * GST_DEBUG_CATEGORY_STATIC (my_category); // define category (statically)
56 * &hash;define GST_CAT_DEFAULT my_category // set as default
59 * After that you only need to initialize the category.
62 * GST_DEBUG_CATEGORY_INIT (my_category, "my category",
63 * 0, "This is my very own");
66 * Initialization must be done before the category is used first.
68 * in their plugin_init function, libraries and applications should do that
69 * during their initialization.
71 * The whole debugging subsystem can be disabled at build time with passing the
72 * --disable-gst-debug switch to configure. If this is done, every function,
73 * macro and even structs described in this file evaluate to default values or
75 * So don't take addresses of these functions or use other tricks.
76 * If you must do that for some reason, there is still an option.
78 * subsystem was compiled out, #GST_DISABLE_GST_DEBUG is defined in
80 * so you can check that before doing your trick.
81 * Disabling the debugging subsystem will give you a slight (read: unnoticeable)
82 * speed increase and will reduce the size of your compiled code. The GStreamer
83 * library itself becomes around 10% smaller.
85 * Please note that there are naming conventions for the names of debugging
86 * categories. These are explained at GST_DEBUG_CATEGORY_INIT().
90 #include "gst_private.h"
93 #undef gst_debug_remove_log_function
94 #undef gst_debug_add_log_function
96 #ifndef GST_DISABLE_GST_DEBUG
101 #ifdef HAVE_PRINTF_EXTENSION
104 #include <stdio.h> /* fprintf */
105 #include <glib/gstdio.h>
108 # include <unistd.h> /* getpid on UNIX */
110 #ifdef HAVE_PROCESS_H
111 # include <process.h> /* getpid on win32 */
113 #include <string.h> /* G_VA_COPY */
115 # define WIN32_LEAN_AND_MEAN /* prevents from including too many things */
116 # include <windows.h> /* GetStdHandle, windows console */
119 #include "gst_private.h"
120 #include "gstutils.h"
121 #include "gstquark.h"
122 #include "gstsegment.h"
123 #include "gstvalue.h"
124 #include "gstcapsfeatures.h"
126 #ifdef HAVE_VALGRIND_VALGRIND_H
127 # include <valgrind/valgrind.h>
129 #include <glib/gprintf.h> /* g_sprintf */
131 #endif /* !GST_DISABLE_GST_DEBUG */
133 extern gboolean gst_is_initialized (void);
135 /* we want these symbols exported even if debug is disabled, to maintain
136 * ABI compatibility. Unless GST_REMOVE_DISABLED is defined. */
137 #if !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED)
139 /* disabled by default, as soon as some threshold is set > NONE,
140 * it becomes enabled. */
141 gboolean _gst_debug_enabled = FALSE;
142 GstDebugLevel _gst_debug_min = GST_LEVEL_NONE;
144 GstDebugCategory *GST_CAT_DEFAULT = NULL;
146 GstDebugCategory *GST_CAT_GST_INIT = NULL;
147 GstDebugCategory *GST_CAT_MEMORY = NULL;
148 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
149 GstDebugCategory *GST_CAT_STATES = NULL;
150 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
152 GstDebugCategory *GST_CAT_BUFFER = NULL;
153 GstDebugCategory *GST_CAT_BUFFER_LIST = NULL;
154 GstDebugCategory *GST_CAT_BUS = NULL;
155 GstDebugCategory *GST_CAT_CAPS = NULL;
156 GstDebugCategory *GST_CAT_CLOCK = NULL;
157 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
158 GstDebugCategory *GST_CAT_PADS = NULL;
159 GstDebugCategory *GST_CAT_PERFORMANCE = NULL;
160 GstDebugCategory *GST_CAT_PIPELINE = NULL;
161 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
162 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
163 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
164 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
165 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
166 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
167 GstDebugCategory *GST_CAT_EVENT = NULL;
168 GstDebugCategory *GST_CAT_MESSAGE = NULL;
169 GstDebugCategory *GST_CAT_PARAMS = NULL;
170 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
171 GstDebugCategory *GST_CAT_SIGNAL = NULL;
172 GstDebugCategory *GST_CAT_PROBE = NULL;
173 GstDebugCategory *GST_CAT_REGISTRY = NULL;
174 GstDebugCategory *GST_CAT_QOS = NULL;
175 GstDebugCategory *_priv_GST_CAT_POLL = NULL;
176 GstDebugCategory *GST_CAT_META = NULL;
177 GstDebugCategory *GST_CAT_LOCKING = NULL;
178 GstDebugCategory *GST_CAT_CONTEXT = NULL;
181 #endif /* !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED) */
183 #ifndef GST_DISABLE_GST_DEBUG
185 /* underscore is to prevent conflict with GST_CAT_DEBUG define */
186 GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
188 /* time of initialization, so we get useful debugging output times
189 * FIXME: we use this in gstdebugutils.c, what about a function + macro to
190 * get the running time: GST_DEBUG_RUNNING_TIME
192 GstClockTime _priv_gst_info_start_time;
196 #include <rld_interface.h>
197 typedef struct DL_INFO
199 const char *dli_fname;
201 const char *dli_sname;
205 long dli_reserved[4];
209 #define _RLD_DLADDR 14
210 int dladdr (void *address, Dl_info * dl);
213 dladdr (void *address, Dl_info * dl)
217 v = _rld_new_interface (_RLD_DLADDR, address, dl);
223 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
224 static void gst_debug_reset_all_thresholds (void);
226 #ifdef GST_USING_PRINTF_EXTENSION
227 static int _gst_info_printf_extension_ptr (FILE * stream,
228 const struct printf_info *info, const void *const *args);
229 static int _gst_info_printf_extension_segment (FILE * stream,
230 const struct printf_info *info, const void *const *args);
231 #ifdef HAVE_REGISTER_PRINTF_SPECIFIER
232 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
233 size_t n, int *argtypes, int *size);
235 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
236 size_t n, int *argtypes);
240 struct _GstDebugMessage
247 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
248 static GMutex __level_name_mutex;
249 static GSList *__level_name = NULL;
257 /* list of all categories */
258 static GMutex __cat_mutex;
259 static GSList *__categories = NULL;
261 /* all registered debug handlers */
266 GDestroyNotify notify;
269 static GMutex __log_func_mutex;
270 static GSList *__log_functions = NULL;
272 #define PRETTY_TAGS_DEFAULT TRUE
273 static gboolean pretty_tags = PRETTY_TAGS_DEFAULT;
275 static volatile gint G_GNUC_MAY_ALIAS __default_level = GST_LEVEL_DEFAULT;
276 static volatile gint G_GNUC_MAY_ALIAS __use_color = 1;
278 static FILE *log_file;
280 /* FIXME: export this? */
282 _priv_gst_in_valgrind (void)
290 in_valgrind = GST_VG_UNCHECKED;
292 if (in_valgrind == GST_VG_UNCHECKED) {
293 #ifdef HAVE_VALGRIND_VALGRIND_H
294 if (RUNNING_ON_VALGRIND) {
295 GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
296 printf ("GStreamer has detected that it is running inside valgrind.\n");
297 printf ("It might now take different code paths to ease debugging.\n");
298 printf ("Of course, this may also lead to different bugs.\n");
299 in_valgrind = GST_VG_INSIDE;
301 GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
302 in_valgrind = GST_VG_NO_VALGRIND;
305 in_valgrind = GST_VG_NO_VALGRIND;
307 g_assert (in_valgrind == GST_VG_NO_VALGRIND ||
308 in_valgrind == GST_VG_INSIDE);
310 return (in_valgrind == GST_VG_INSIDE);
313 /* Initialize the debugging system */
315 _priv_gst_debug_init (void)
319 env = g_getenv ("GST_DEBUG_FILE");
320 if (env != NULL && *env != '\0') {
321 if (strcmp (env, "-") == 0) {
324 log_file = g_fopen (env, "w");
325 if (log_file == NULL) {
326 g_printerr ("Could not open log file '%s' for writing: %s\n", env,
335 /* get time we started for debugging messages */
336 _priv_gst_info_start_time = gst_util_get_timestamp ();
338 #ifdef GST_USING_PRINTF_EXTENSION
339 #ifdef HAVE_REGISTER_PRINTF_SPECIFIER
340 register_printf_specifier (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr,
341 _gst_info_printf_extension_arginfo);
342 register_printf_specifier (GST_SEGMENT_FORMAT[0],
343 _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo);
345 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr,
346 _gst_info_printf_extension_arginfo);
347 register_printf_function (GST_SEGMENT_FORMAT[0],
348 _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo);
352 /* do NOT use a single debug function before this line has been run */
353 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
354 GST_DEBUG_UNDERLINE, NULL);
355 _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
356 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
358 gst_debug_add_log_function (gst_debug_log_default, NULL, NULL);
360 /* FIXME: add descriptions here */
361 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
362 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
363 GST_CAT_MEMORY = _gst_debug_category_new ("GST_MEMORY",
364 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, "memory");
365 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
366 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
367 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
368 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
369 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
370 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
371 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
372 GST_DEBUG_BOLD | GST_DEBUG_BG_GREEN, NULL);
373 GST_CAT_BUFFER_LIST = _gst_debug_category_new ("GST_BUFFER_LIST",
374 GST_DEBUG_BOLD | GST_DEBUG_BG_GREEN, NULL);
375 GST_CAT_BUS = _gst_debug_category_new ("GST_BUS", GST_DEBUG_BG_YELLOW, NULL);
376 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
377 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
378 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
379 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL);
380 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
381 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
382 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
383 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_RED, NULL);
384 GST_CAT_PERFORMANCE = _gst_debug_category_new ("GST_PERFORMANCE",
385 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
386 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
387 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
388 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
389 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
390 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
391 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
392 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
393 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL);
394 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
395 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
396 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
397 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_BLUE, NULL);
398 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
399 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL);
401 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
402 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
403 GST_CAT_MESSAGE = _gst_debug_category_new ("GST_MESSAGE",
404 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
405 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
406 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL);
407 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
408 GST_DEBUG_BOLD, NULL);
409 GST_CAT_SIGNAL = _gst_debug_category_new ("GST_SIGNAL",
410 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
411 GST_CAT_PROBE = _gst_debug_category_new ("GST_PROBE",
412 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "pad probes");
413 GST_CAT_REGISTRY = _gst_debug_category_new ("GST_REGISTRY", 0, "registry");
414 GST_CAT_QOS = _gst_debug_category_new ("GST_QOS", 0, "QoS");
415 _priv_GST_CAT_POLL = _gst_debug_category_new ("GST_POLL", 0, "poll");
416 GST_CAT_META = _gst_debug_category_new ("GST_META", 0, "meta");
417 GST_CAT_LOCKING = _gst_debug_category_new ("GST_LOCKING", 0, "locking");
418 GST_CAT_CONTEXT = _gst_debug_category_new ("GST_CONTEXT", 0, NULL);
420 /* print out the valgrind message if we're in valgrind */
421 _priv_gst_in_valgrind ();
423 env = g_getenv ("GST_DEBUG_OPTIONS");
425 if (strstr (env, "full_tags") || strstr (env, "full-tags"))
427 else if (strstr (env, "pretty_tags") || strstr (env, "pretty-tags"))
432 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
433 #define GST_CAT_DEFAULT _GST_CAT_DEBUG
437 * @category: category to log
438 * @level: level of the message is in
439 * @file: the file that emitted the message, usually the __FILE__ identifier
440 * @function: the function that emitted the message
441 * @line: the line from that the message was emitted, usually __LINE__
442 * @object: (transfer none) (allow-none): the object this message relates to,
444 * @format: a printf style format string
445 * @...: optional arguments for the format
447 * Logs the given message using the currently registered debugging handlers.
450 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
451 const gchar * file, const gchar * function, gint line,
452 GObject * object, const gchar * format, ...)
456 va_start (var_args, format);
457 gst_debug_log_valist (category, level, file, function, line, object, format,
463 /* based on g_basename(), which we can't use because it was deprecated */
464 static inline const gchar *
465 gst_path_basename (const gchar * file_name)
467 register const gchar *base;
469 base = strrchr (file_name, G_DIR_SEPARATOR);
472 const gchar *q = strrchr (file_name, '/');
473 if (base == NULL || (q != NULL && q > base))
480 if (g_ascii_isalpha (file_name[0]) && file_name[1] == ':')
481 return file_name + 2;
488 * gst_debug_log_valist:
489 * @category: category to log
490 * @level: level of the message is in
491 * @file: the file that emitted the message, usually the __FILE__ identifier
492 * @function: the function that emitted the message
493 * @line: the line from that the message was emitted, usually __LINE__
494 * @object: (transfer none) (allow-none): the object this message relates to,
496 * @format: a printf style format string
497 * @args: optional arguments for the format
499 * Logs the given message using the currently registered debugging handlers.
502 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
503 const gchar * file, const gchar * function, gint line,
504 GObject * object, const gchar * format, va_list args)
506 GstDebugMessage message;
510 g_return_if_fail (category != NULL);
511 g_return_if_fail (file != NULL);
512 g_return_if_fail (function != NULL);
513 g_return_if_fail (format != NULL);
515 /* The predefined macro __FILE__ is always the exact path given to the
516 * compiler with MSVC, which may or may not be the basename. We work
517 * around it at runtime to improve the readability. */
519 file = gst_path_basename (file);
522 message.message = NULL;
523 message.format = format;
524 G_VA_COPY (message.arguments, args);
526 handler = __log_functions;
528 entry = handler->data;
529 handler = g_slist_next (handler);
530 entry->func (category, level, file, function, line, object, &message,
533 g_free (message.message);
534 va_end (message.arguments);
538 * gst_debug_message_get:
539 * @message: a debug message
541 * Gets the string representation of a #GstDebugMessage. This function is used
542 * in debug handlers to extract the message.
544 * Returns: the string representation of a #GstDebugMessage.
547 gst_debug_message_get (GstDebugMessage * message)
549 if (message->message == NULL) {
550 message->message = g_strdup_vprintf (message->format, message->arguments);
552 return message->message;
555 #define MAX_BUFFER_DUMP_STRING_LEN 100
557 /* structure_to_pretty_string:
558 * @str: a serialized #GstStructure
560 * If the serialized structure contains large buffers such as images the hex
561 * representation of those buffers will be shortened so that the string remains
564 * Returns: the filtered string
567 prettify_structure_string (gchar * str)
569 gchar *pos = str, *end;
571 while ((pos = strstr (pos, "(buffer)"))) {
574 pos += strlen ("(buffer)");
575 for (end = pos; *end != '\0' && *end != ';' && *end != ' '; ++end)
577 if (count > MAX_BUFFER_DUMP_STRING_LEN) {
578 memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 6, "..", 2);
579 memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 4, pos + count - 4, 4);
580 g_memmove (pos + MAX_BUFFER_DUMP_STRING_LEN, pos + count,
581 strlen (pos + count) + 1);
582 pos += MAX_BUFFER_DUMP_STRING_LEN;
589 static inline gchar *
590 gst_info_structure_to_string (const GstStructure * s)
593 gchar *str = gst_structure_to_string (s);;
594 if (G_UNLIKELY (pretty_tags && s->name == GST_QUARK (TAGLIST)))
595 return prettify_structure_string (str);
602 static inline gchar *
603 __gst_buffer_describe (GstBuffer * buffer)
605 return g_strdup_printf ("buffer: %p, pts %" GST_TIME_FORMAT ", dts %"
606 GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT
607 ", offset %" G_GUINT64_FORMAT ", offset_end %" G_GUINT64_FORMAT
608 ", flags 0x%x", buffer, GST_TIME_ARGS (GST_BUFFER_PTS (buffer)),
609 GST_TIME_ARGS (GST_BUFFER_DTS (buffer)),
610 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)),
611 gst_buffer_get_size (buffer), GST_BUFFER_OFFSET (buffer),
612 GST_BUFFER_OFFSET_END (buffer), GST_BUFFER_FLAGS (buffer));
615 static inline gchar *
616 __gst_event_describe (GstEvent * event)
620 s = gst_info_structure_to_string (gst_event_get_structure (event));
621 ret = g_strdup_printf ("%s event: %p, time %" GST_TIME_FORMAT
622 ", seq-num %d, %s", GST_EVENT_TYPE_NAME (event), event,
623 GST_TIME_ARGS (GST_EVENT_TIMESTAMP (event)), GST_EVENT_SEQNUM (event),
629 static inline gchar *
630 __gst_message_describe (GstMessage * message)
634 s = gst_info_structure_to_string (gst_message_get_structure (message));
635 ret = g_strdup_printf ("%s message: %p, time %" GST_TIME_FORMAT
636 ", seq-num %d, element '%s', %s", GST_MESSAGE_TYPE_NAME (message),
637 message, GST_TIME_ARGS (GST_MESSAGE_TIMESTAMP (message)),
638 GST_MESSAGE_SEQNUM (message),
639 ((message->src) ? GST_ELEMENT_NAME (message->src) : "(NULL)"),
645 static inline gchar *
646 __gst_query_describe (GstQuery * query)
650 s = gst_info_structure_to_string (gst_query_get_structure (query));
651 ret = g_strdup_printf ("%s query: %p, %s", GST_QUERY_TYPE_NAME (query),
652 query, (s ? s : "(NULL)"));
658 gst_debug_print_object (gpointer ptr)
660 GObject *object = (GObject *) ptr;
663 /* This is a cute trick to detect unmapped memory, but is unportable,
664 * slow, screws around with madvise, and not actually that useful. */
668 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
669 if (ret == -1 && errno == ENOMEM) {
670 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
675 /* nicely printed object */
676 if (object == NULL) {
677 return g_strdup ("(NULL)");
679 if (*(GType *) ptr == GST_TYPE_CAPS) {
680 return gst_caps_to_string ((const GstCaps *) ptr);
682 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
683 return gst_info_structure_to_string ((const GstStructure *) ptr);
685 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
686 return gst_caps_features_to_string ((const GstCapsFeatures *) ptr);
688 if (*(GType *) ptr == GST_TYPE_TAG_LIST) {
689 gchar *str = gst_tag_list_to_string ((GstTagList *) ptr);
690 if (G_UNLIKELY (pretty_tags))
691 return prettify_structure_string (str);
695 if (*(GType *) ptr == GST_TYPE_DATE_TIME) {
696 return __gst_date_time_serialize ((GstDateTime *) ptr, TRUE);
698 if (GST_IS_BUFFER (ptr)) {
699 return __gst_buffer_describe (GST_BUFFER_CAST (ptr));
702 if (*(guint32 *) ptr == 0xffffffff) {
703 return g_strdup_printf ("<poisoned@%p>", ptr);
706 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
707 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
709 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
710 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
712 if (G_IS_OBJECT (object)) {
713 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
715 if (GST_IS_MESSAGE (object)) {
716 return __gst_message_describe (GST_MESSAGE_CAST (object));
718 if (GST_IS_QUERY (object)) {
719 return __gst_query_describe (GST_QUERY_CAST (object));
721 if (GST_IS_EVENT (object)) {
722 return __gst_event_describe (GST_EVENT_CAST (object));
724 if (GST_IS_CONTEXT (object)) {
725 GstContext *context = GST_CONTEXT_CAST (object);
727 const GstStructure *structure;
729 structure = gst_context_get_structure (context);
732 s = gst_info_structure_to_string (structure);
734 s = g_strdup ("(NULL)");
737 ret = g_strdup_printf ("context '%s'", s);
742 return g_strdup_printf ("%p", ptr);
745 #ifdef GST_USING_PRINTF_EXTENSION
748 gst_debug_print_segment (gpointer ptr)
750 GstSegment *segment = (GstSegment *) ptr;
752 /* nicely printed segment */
753 if (segment == NULL) {
754 return g_strdup ("(NULL)");
757 switch (segment->format) {
758 case GST_FORMAT_UNDEFINED:{
759 return g_strdup_printf ("UNDEFINED segment");
761 case GST_FORMAT_TIME:{
762 return g_strdup_printf ("time segment start=%" GST_TIME_FORMAT
763 ", stop=%" GST_TIME_FORMAT ", rate=%f, applied_rate=%f"
764 ", flags=0x%02x, time=%" GST_TIME_FORMAT ", base=%" GST_TIME_FORMAT
765 ", position %" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
766 GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->stop),
767 segment->rate, segment->applied_rate, (guint) segment->flags,
768 GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->base),
769 GST_TIME_ARGS (segment->position), GST_TIME_ARGS (segment->duration));
772 const gchar *format_name;
774 format_name = gst_format_get_name (segment->format);
775 if (G_UNLIKELY (format_name == NULL))
776 format_name = "(UNKNOWN FORMAT)";
777 return g_strdup_printf ("%s segment start=%" G_GINT64_FORMAT
778 ", stop=%" G_GINT64_FORMAT ", rate=%f, applied_rate=%f"
779 ", flags=0x%02x, time=%" G_GINT64_FORMAT ", base=%" G_GINT64_FORMAT
780 ", position %" G_GINT64_FORMAT ", duration %" G_GINT64_FORMAT,
781 format_name, segment->start, segment->stop, segment->rate,
782 segment->applied_rate, (guint) segment->flags,
783 segment->time, segment->base, segment->position, segment->duration);
788 #endif /* GST_USING_PRINTF_EXTENSION */
791 * gst_debug_construct_term_color:
792 * @colorinfo: the color info
794 * Constructs a string that can be used for getting the desired color in color
796 * You need to free the string after use.
798 * Returns: (transfer full) (type gchar*): a string containing the color
802 gst_debug_construct_term_color (guint colorinfo)
806 color = g_string_new ("\033[00");
808 if (colorinfo & GST_DEBUG_BOLD) {
809 g_string_append_len (color, ";01", 3);
811 if (colorinfo & GST_DEBUG_UNDERLINE) {
812 g_string_append_len (color, ";04", 3);
814 if (colorinfo & GST_DEBUG_FG_MASK) {
815 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
817 if (colorinfo & GST_DEBUG_BG_MASK) {
818 g_string_append_printf (color, ";4%1d",
819 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
821 g_string_append_c (color, 'm');
823 return g_string_free (color, FALSE);
827 * gst_debug_construct_win_color:
828 * @colorinfo: the color info
830 * Constructs an integer that can be used for getting the desired color in
831 * windows' terminals (cmd.exe). As there is no mean to underline, we simply
832 * ignore this attribute.
834 * This function returns 0 on non-windows machines.
836 * Returns: an integer containing the color definition
839 gst_debug_construct_win_color (guint colorinfo)
843 static const guchar ansi_to_win_fg[8] = {
845 FOREGROUND_RED, /* red */
846 FOREGROUND_GREEN, /* green */
847 FOREGROUND_RED | FOREGROUND_GREEN, /* yellow */
848 FOREGROUND_BLUE, /* blue */
849 FOREGROUND_RED | FOREGROUND_BLUE, /* magenta */
850 FOREGROUND_GREEN | FOREGROUND_BLUE, /* cyan */
851 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE /* white */
853 static const guchar ansi_to_win_bg[8] = {
857 BACKGROUND_RED | BACKGROUND_GREEN,
859 BACKGROUND_RED | BACKGROUND_BLUE,
860 BACKGROUND_GREEN | FOREGROUND_BLUE,
861 BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
864 /* we draw black as white, as cmd.exe can only have black bg */
865 if (colorinfo == 0) {
866 return ansi_to_win_fg[7];
869 if (colorinfo & GST_DEBUG_BOLD) {
870 color |= FOREGROUND_INTENSITY;
872 if (colorinfo & GST_DEBUG_FG_MASK) {
873 color |= ansi_to_win_fg[colorinfo & GST_DEBUG_FG_MASK];
875 if (colorinfo & GST_DEBUG_BG_MASK) {
876 color |= ansi_to_win_bg[(colorinfo & GST_DEBUG_BG_MASK) >> 4];
882 /* width of %p varies depending on actual value of pointer, which can make
883 * output unevenly aligned if multiple threads are involved, hence the %14p
884 * (should really be %18p, but %14p seems a good compromise between too many
885 * white spaces and likely unalignment on my system) */
886 #if defined (GLIB_SIZEOF_VOID_P) && GLIB_SIZEOF_VOID_P == 8
887 #define PTR_FMT "%14p"
889 #define PTR_FMT "%10p"
891 #define PID_FMT "%5d"
892 #define CAT_FMT "%20s %s:%d:%s:%s"
895 static const guchar levelcolormap[GST_LEVEL_COUNT] = {
897 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
898 /* GST_LEVEL_ERROR */
899 FOREGROUND_RED | FOREGROUND_INTENSITY,
900 /* GST_LEVEL_WARNING */
901 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY,
903 FOREGROUND_GREEN | FOREGROUND_INTENSITY,
904 /* GST_LEVEL_DEBUG */
905 FOREGROUND_GREEN | FOREGROUND_BLUE,
907 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
908 /* GST_LEVEL_FIXME */
909 FOREGROUND_RED | FOREGROUND_GREEN,
910 /* GST_LEVEL_TRACE */
911 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
912 /* placeholder for log level 8 */
914 /* GST_LEVEL_MEMDUMP */
915 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
918 static const guchar available_colors[] = {
919 FOREGROUND_RED, FOREGROUND_GREEN, FOREGROUND_RED | FOREGROUND_GREEN,
920 FOREGROUND_BLUE, FOREGROUND_RED | FOREGROUND_BLUE,
921 FOREGROUND_GREEN | FOREGROUND_BLUE,
924 static const gchar *levelcolormap[GST_LEVEL_COUNT] = {
925 "\033[37m", /* GST_LEVEL_NONE */
926 "\033[31;01m", /* GST_LEVEL_ERROR */
927 "\033[33;01m", /* GST_LEVEL_WARNING */
928 "\033[32;01m", /* GST_LEVEL_INFO */
929 "\033[36m", /* GST_LEVEL_DEBUG */
930 "\033[37m", /* GST_LEVEL_LOG */
931 "\033[33;01m", /* GST_LEVEL_FIXME */
932 "\033[37m", /* GST_LEVEL_TRACE */
933 "\033[37m", /* placeholder for log level 8 */
934 "\033[37m" /* GST_LEVEL_MEMDUMP */
939 * gst_debug_log_default:
940 * @category: category to log
941 * @level: level of the message
942 * @file: the file that emitted the message, usually the __FILE__ identifier
943 * @function: the function that emitted the message
944 * @line: the line from that the message was emitted, usually __LINE__
945 * @message: the actual message
946 * @object: (transfer none) (allow-none): the object this message relates to,
948 * @unused: an unused variable, reserved for some user_data.
950 * The default logging handler used by GStreamer. Logging functions get called
951 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
952 * message and additional info to stderr (or the log file specified via the
953 * GST_DEBUG_FILE environment variable).
955 * You can add other handlers by using gst_debug_add_log_function().
956 * And you can remove this handler by calling
957 * gst_debug_remove_log_function(gst_debug_log_default);
960 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
961 const gchar * file, const gchar * function, gint line,
962 GObject * object, GstDebugMessage * message, gpointer unused)
965 GstClockTime elapsed;
969 if (level > gst_debug_category_get_threshold (category))
973 is_colored = gst_debug_is_colored ();
976 obj = gst_debug_print_object (object);
981 elapsed = GST_CLOCK_DIFF (_priv_gst_info_start_time,
982 gst_util_get_timestamp ());
986 /* colors, non-windows */
990 const gchar *levelcolor;
992 color = gst_debug_construct_term_color (gst_debug_category_get_color
995 g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31);
996 levelcolor = levelcolormap[level];
998 #define PRINT_FMT " %s"PID_FMT"%s "PTR_FMT" %s%s%s %s"CAT_FMT"%s %s\n"
999 fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
1000 pidcolor, pid, clear, g_thread_self (), levelcolor,
1001 gst_debug_level_get_name (level), clear, color,
1002 gst_debug_category_get_name (category), file, line, function, obj,
1003 clear, gst_debug_message_get (message));
1008 /* colors, windows. We take a lock to keep colors and content together.
1009 * Maybe there is a better way but for now this will do the right
1011 static GMutex win_print_mutex;
1012 const gint clear = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
1013 #define SET_COLOR(c) G_STMT_START { \
1014 if (log_file == stderr) \
1015 SetConsoleTextAttribute (GetStdHandle (STD_ERROR_HANDLE), (c)); \
1017 g_mutex_lock (&win_print_mutex);
1019 fprintf (log_file, "%" GST_TIME_FORMAT " ", GST_TIME_ARGS (elapsed));
1022 SET_COLOR (available_colors[pid % G_N_ELEMENTS (available_colors)]);
1023 fprintf (log_file, PID_FMT, pid);
1027 fprintf (log_file, " " PTR_FMT " ", g_thread_self ());
1030 SET_COLOR (levelcolormap[level]);
1031 fprintf (log_file, "%s ", gst_debug_level_get_name (level));
1034 SET_COLOR (gst_debug_construct_win_color (gst_debug_category_get_color
1036 fprintf (log_file, CAT_FMT, gst_debug_category_get_name (category),
1037 file, line, function, obj);
1041 fprintf (log_file, " %s\n", gst_debug_message_get (message));
1043 g_mutex_unlock (&win_print_mutex);
1046 /* no color, all platforms */
1047 #define PRINT_FMT " "PID_FMT" "PTR_FMT" %s "CAT_FMT" %s\n"
1048 fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
1049 pid, g_thread_self (), gst_debug_level_get_name (level),
1050 gst_debug_category_get_name (category), file, line, function, obj,
1051 gst_debug_message_get (message));
1060 * gst_debug_level_get_name:
1061 * @level: the level to get the name for
1063 * Get the string representation of a debugging level
1068 gst_debug_level_get_name (GstDebugLevel level)
1071 case GST_LEVEL_NONE:
1073 case GST_LEVEL_ERROR:
1075 case GST_LEVEL_WARNING:
1077 case GST_LEVEL_INFO:
1079 case GST_LEVEL_DEBUG:
1083 case GST_LEVEL_FIXME:
1085 case GST_LEVEL_TRACE:
1087 case GST_LEVEL_MEMDUMP:
1090 g_warning ("invalid level specified for gst_debug_level_get_name");
1096 * gst_debug_add_log_function:
1097 * @func: the function to use
1098 * @user_data: user data
1099 * @notify: called when @user_data is not used anymore
1101 * Adds the logging function to the list of logging functions.
1102 * Be sure to use #G_GNUC_NO_INSTRUMENT on that function, it is needed.
1105 gst_debug_add_log_function (GstLogFunction func, gpointer user_data,
1106 GDestroyNotify notify)
1108 LogFuncEntry *entry;
1112 func = gst_debug_log_default;
1114 entry = g_slice_new (LogFuncEntry);
1116 entry->user_data = user_data;
1117 entry->notify = notify;
1118 /* FIXME: we leak the old list here - other threads might access it right now
1119 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
1120 * but that is waaay costly.
1121 * It'd probably be clever to use some kind of RCU here, but I don't know
1122 * anything about that.
1124 g_mutex_lock (&__log_func_mutex);
1125 list = g_slist_copy (__log_functions);
1126 __log_functions = g_slist_prepend (list, entry);
1127 g_mutex_unlock (&__log_func_mutex);
1129 if (gst_is_initialized ())
1130 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
1135 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
1137 gpointer entryfunc = (gpointer) (((LogFuncEntry *) entry)->func);
1139 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
1143 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
1145 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
1147 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
1151 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
1154 GSList *new, *cleanup = NULL;
1157 g_mutex_lock (&__log_func_mutex);
1158 new = __log_functions;
1160 while ((found = g_slist_find_custom (new, data, func))) {
1161 if (new == __log_functions) {
1162 /* make a copy when we have the first hit, so that we modify the copy and
1163 * make that the new list later */
1164 new = g_slist_copy (new);
1167 cleanup = g_slist_prepend (cleanup, found->data);
1168 new = g_slist_delete_link (new, found);
1171 /* FIXME: We leak the old list here. See _add_log_function for why. */
1172 __log_functions = new;
1173 g_mutex_unlock (&__log_func_mutex);
1176 LogFuncEntry *entry = cleanup->data;
1179 entry->notify (entry->user_data);
1181 g_slice_free (LogFuncEntry, entry);
1182 cleanup = g_slist_delete_link (cleanup, cleanup);
1188 * gst_debug_remove_log_function:
1189 * @func: (scope call): the log function to remove
1191 * Removes all registered instances of the given logging functions.
1193 * Returns: How many instances of the function were removed
1196 gst_debug_remove_log_function (GstLogFunction func)
1201 func = gst_debug_log_default;
1204 gst_debug_remove_with_compare_func
1205 (gst_debug_compare_log_function_by_func, (gpointer) func);
1206 if (gst_is_initialized ())
1207 GST_DEBUG ("removed log function %p %d times from log function list", func,
1214 * gst_debug_remove_log_function_by_data:
1215 * @data: user data of the log function to remove
1217 * Removes all registered instances of log functions with the given user data.
1219 * Returns: How many instances of the function were removed
1222 gst_debug_remove_log_function_by_data (gpointer data)
1227 gst_debug_remove_with_compare_func
1228 (gst_debug_compare_log_function_by_data, data);
1230 if (gst_is_initialized ())
1232 ("removed %d log functions with user data %p from log function list",
1239 * gst_debug_set_colored:
1240 * @colored: Whether to use colored output or not
1242 * Sets or unsets the use of coloured debugging output.
1244 * This function may be called before gst_init().
1247 gst_debug_set_colored (gboolean colored)
1249 g_atomic_int_set (&__use_color, (gint) colored);
1253 * gst_debug_is_colored:
1255 * Checks if the debugging output should be colored.
1257 * Returns: TRUE, if the debug output should be colored.
1260 gst_debug_is_colored (void)
1262 return (gboolean) g_atomic_int_get (&__use_color);
1266 * gst_debug_set_active:
1267 * @active: Whether to use debugging output or not
1269 * If activated, debugging messages are sent to the debugging
1271 * It makes sense to deactivate it for speed issues.
1272 * <note><para>This function is not threadsafe. It makes sense to only call it
1273 * during initialization.</para></note>
1276 gst_debug_set_active (gboolean active)
1278 _gst_debug_enabled = active;
1280 _gst_debug_min = GST_LEVEL_COUNT;
1282 _gst_debug_min = GST_LEVEL_NONE;
1286 * gst_debug_is_active:
1288 * Checks if debugging output is activated.
1290 * Returns: TRUE, if debugging is activated
1293 gst_debug_is_active (void)
1295 return _gst_debug_enabled;
1299 * gst_debug_set_default_threshold:
1300 * @level: level to set
1302 * Sets the default threshold to the given level and updates all categories to
1303 * use this threshold.
1305 * This function may be called before gst_init().
1308 gst_debug_set_default_threshold (GstDebugLevel level)
1310 g_atomic_int_set (&__default_level, level);
1311 gst_debug_reset_all_thresholds ();
1315 * gst_debug_get_default_threshold:
1317 * Returns the default threshold that is used for new categories.
1319 * Returns: the default threshold level
1322 gst_debug_get_default_threshold (void)
1324 return (GstDebugLevel) g_atomic_int_get (&__default_level);
1328 gst_debug_reset_threshold (gpointer category, gpointer unused)
1330 GstDebugCategory *cat = (GstDebugCategory *) category;
1333 g_mutex_lock (&__level_name_mutex);
1334 walk = __level_name;
1336 LevelNameEntry *entry = walk->data;
1338 walk = g_slist_next (walk);
1339 if (g_pattern_match_string (entry->pat, cat->name)) {
1340 if (gst_is_initialized ())
1341 GST_LOG ("category %s matches pattern %p - gets set to level %d",
1342 cat->name, entry->pat, entry->level);
1343 gst_debug_category_set_threshold (cat, entry->level);
1347 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
1350 g_mutex_unlock (&__level_name_mutex);
1354 gst_debug_reset_all_thresholds (void)
1356 g_mutex_lock (&__cat_mutex);
1357 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
1358 g_mutex_unlock (&__cat_mutex);
1362 for_each_threshold_by_entry (gpointer data, gpointer user_data)
1364 GstDebugCategory *cat = (GstDebugCategory *) data;
1365 LevelNameEntry *entry = (LevelNameEntry *) user_data;
1367 if (g_pattern_match_string (entry->pat, cat->name)) {
1368 if (gst_is_initialized ())
1369 GST_LOG ("category %s matches pattern %p - gets set to level %d",
1370 cat->name, entry->pat, entry->level);
1371 gst_debug_category_set_threshold (cat, entry->level);
1376 * gst_debug_set_threshold_for_name:
1377 * @name: name of the categories to set
1378 * @level: level to set them to
1380 * Sets all categories which match the given glob style pattern to the given
1384 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
1387 LevelNameEntry *entry;
1389 g_return_if_fail (name != NULL);
1391 pat = g_pattern_spec_new (name);
1392 entry = g_slice_new (LevelNameEntry);
1394 entry->level = level;
1395 g_mutex_lock (&__level_name_mutex);
1396 __level_name = g_slist_prepend (__level_name, entry);
1397 g_mutex_unlock (&__level_name_mutex);
1398 g_mutex_lock (&__cat_mutex);
1399 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
1400 g_mutex_unlock (&__cat_mutex);
1404 * gst_debug_unset_threshold_for_name:
1405 * @name: name of the categories to set
1407 * Resets all categories with the given name back to the default level.
1410 gst_debug_unset_threshold_for_name (const gchar * name)
1415 g_return_if_fail (name != NULL);
1417 pat = g_pattern_spec_new (name);
1418 g_mutex_lock (&__level_name_mutex);
1419 walk = __level_name;
1420 /* improve this if you want, it's mighty slow */
1422 LevelNameEntry *entry = walk->data;
1424 if (g_pattern_spec_equal (entry->pat, pat)) {
1425 __level_name = g_slist_remove_link (__level_name, walk);
1426 g_pattern_spec_free (entry->pat);
1427 g_slice_free (LevelNameEntry, entry);
1428 g_slist_free_1 (walk);
1429 walk = __level_name;
1432 g_mutex_unlock (&__level_name_mutex);
1433 g_pattern_spec_free (pat);
1434 gst_debug_reset_all_thresholds ();
1438 _gst_debug_category_new (const gchar * name, guint color,
1439 const gchar * description)
1441 GstDebugCategory *cat;
1443 g_return_val_if_fail (name != NULL, NULL);
1445 cat = g_slice_new (GstDebugCategory);
1446 cat->name = g_strdup (name);
1448 if (description != NULL) {
1449 cat->description = g_strdup (description);
1451 cat->description = g_strdup ("no description");
1453 g_atomic_int_set (&cat->threshold, 0);
1454 gst_debug_reset_threshold (cat, NULL);
1456 /* add to category list */
1457 g_mutex_lock (&__cat_mutex);
1458 __categories = g_slist_prepend (__categories, cat);
1459 g_mutex_unlock (&__cat_mutex);
1465 * gst_debug_category_free:
1466 * @category: #GstDebugCategory to free.
1468 * Removes and frees the category and all associated resources.
1471 gst_debug_category_free (GstDebugCategory * category)
1473 if (category == NULL)
1476 /* remove from category list */
1477 g_mutex_lock (&__cat_mutex);
1478 __categories = g_slist_remove (__categories, category);
1479 g_mutex_unlock (&__cat_mutex);
1481 g_free ((gpointer) category->name);
1482 g_free ((gpointer) category->description);
1483 g_slice_free (GstDebugCategory, category);
1487 * gst_debug_category_set_threshold:
1488 * @category: a #GstDebugCategory to set threshold of.
1489 * @level: the #GstDebugLevel threshold to set.
1491 * Sets the threshold of the category to the given level. Debug information will
1492 * only be output if the threshold is lower or equal to the level of the
1493 * debugging message.
1495 * Do not use this function in production code, because other functions may
1496 * change the threshold of categories as side effect. It is however a nice
1497 * function to use when debugging (even from gdb).
1501 gst_debug_category_set_threshold (GstDebugCategory * category,
1502 GstDebugLevel level)
1504 g_return_if_fail (category != NULL);
1506 if (level > _gst_debug_min) {
1507 _gst_debug_enabled = TRUE;
1508 _gst_debug_min = level;
1511 g_atomic_int_set (&category->threshold, level);
1515 * gst_debug_category_reset_threshold:
1516 * @category: a #GstDebugCategory to reset threshold of.
1518 * Resets the threshold of the category to the default level. Debug information
1519 * will only be output if the threshold is lower or equal to the level of the
1520 * debugging message.
1521 * Use this function to set the threshold back to where it was after using
1522 * gst_debug_category_set_threshold().
1525 gst_debug_category_reset_threshold (GstDebugCategory * category)
1527 gst_debug_reset_threshold (category, NULL);
1531 * gst_debug_category_get_threshold:
1532 * @category: a #GstDebugCategory to get threshold of.
1534 * Returns the threshold of a #GstDebugCategory.
1536 * Returns: the #GstDebugLevel that is used as threshold.
1539 gst_debug_category_get_threshold (GstDebugCategory * category)
1541 return (GstDebugLevel) g_atomic_int_get (&category->threshold);
1545 * gst_debug_category_get_name:
1546 * @category: a #GstDebugCategory to get name of.
1548 * Returns the name of a debug category.
1550 * Returns: the name of the category.
1553 gst_debug_category_get_name (GstDebugCategory * category)
1555 return category->name;
1559 * gst_debug_category_get_color:
1560 * @category: a #GstDebugCategory to get the color of.
1562 * Returns the color of a debug category used when printing output in this
1565 * Returns: the color of the category.
1568 gst_debug_category_get_color (GstDebugCategory * category)
1570 return category->color;
1574 * gst_debug_category_get_description:
1575 * @category: a #GstDebugCategory to get the description of.
1577 * Returns the description of a debug category.
1579 * Returns: the description of the category.
1582 gst_debug_category_get_description (GstDebugCategory * category)
1584 return category->description;
1588 * gst_debug_get_all_categories:
1590 * Returns a snapshot of a all categories that are currently in use . This list
1591 * may change anytime.
1592 * The caller has to free the list after use.
1594 * Returns: (transfer container) (element-type Gst.DebugCategory): the list of
1598 gst_debug_get_all_categories (void)
1602 g_mutex_lock (&__cat_mutex);
1603 ret = g_slist_copy (__categories);
1604 g_mutex_unlock (&__cat_mutex);
1610 _gst_debug_get_category (const gchar * name)
1612 GstDebugCategory *ret = NULL;
1615 for (node = __categories; node; node = g_slist_next (node)) {
1616 ret = (GstDebugCategory *) node->data;
1617 if (!strcmp (name, ret->name)) {
1625 parse_debug_category (gchar * str, const gchar ** category)
1630 /* works in place */
1633 if (str[0] != '\0') {
1642 parse_debug_level (gchar * str, GstDebugLevel * level)
1647 /* works in place */
1650 if (str[0] != '\0' && str[1] == '\0'
1651 && str[0] >= '0' && str[0] < '0' + GST_LEVEL_COUNT) {
1652 *level = (GstDebugLevel) (str[0] - '0');
1653 } else if (strcmp (str, "ERROR") == 0) {
1654 *level = GST_LEVEL_ERROR;
1655 } else if (strncmp (str, "WARN", 4) == 0) {
1656 *level = GST_LEVEL_WARNING;
1657 } else if (strcmp (str, "FIXME") == 0) {
1658 *level = GST_LEVEL_FIXME;
1659 } else if (strcmp (str, "INFO") == 0) {
1660 *level = GST_LEVEL_INFO;
1661 } else if (strcmp (str, "DEBUG") == 0) {
1662 *level = GST_LEVEL_DEBUG;
1663 } else if (strcmp (str, "LOG") == 0) {
1664 *level = GST_LEVEL_LOG;
1665 } else if (strcmp (str, "TRACE") == 0) {
1666 *level = GST_LEVEL_TRACE;
1667 } else if (strcmp (str, "MEMDUMP") == 0) {
1668 *level = GST_LEVEL_MEMDUMP;
1676 * gst_debug_set_threshold_from_string:
1677 * @list: comma-separated list of "category:level" pairs to be used
1678 * as debug logging levels
1679 * @reset: %TRUE to clear all previously-set debug levels before setting
1681 * %FALSE if adding the threshold described by @list to the one already set.
1683 * Sets the debug logging wanted in the same form as with the GST_DEBUG
1684 * environment variable. You can use wildcards such as '*', but note that
1685 * the order matters when you use wild cards, e.g. "foosrc:6,*src:3,*:2" sets
1686 * everything to log level 2.
1691 gst_debug_set_threshold_from_string (const gchar * list, gboolean reset)
1699 gst_debug_set_default_threshold (0);
1701 split = g_strsplit (list, ",", 0);
1703 for (walk = split; *walk; walk++) {
1704 if (strchr (*walk, ':')) {
1705 gchar **values = g_strsplit (*walk, ":", 2);
1707 if (values[0] && values[1]) {
1708 GstDebugLevel level;
1709 const gchar *category;
1711 if (parse_debug_category (values[0], &category)
1712 && parse_debug_level (values[1], &level))
1713 gst_debug_set_threshold_for_name (category, level);
1716 g_strfreev (values);
1718 GstDebugLevel level;
1720 if (parse_debug_level (*walk, &level))
1721 gst_debug_set_default_threshold (level);
1728 /*** FUNCTION POINTERS ********************************************************/
1730 static GHashTable *__gst_function_pointers; /* NULL */
1731 static GMutex __dbg_functions_mutex;
1733 /* This function MUST NOT return NULL */
1735 _gst_debug_nameof_funcptr (GstDebugFuncPtr func)
1743 if (G_UNLIKELY (func == NULL))
1746 g_mutex_lock (&__dbg_functions_mutex);
1747 if (G_LIKELY (__gst_function_pointers)) {
1748 ptrname = g_hash_table_lookup (__gst_function_pointers, (gpointer) func);
1749 g_mutex_unlock (&__dbg_functions_mutex);
1750 if (G_LIKELY (ptrname))
1753 g_mutex_unlock (&__dbg_functions_mutex);
1755 /* we need to create an entry in the hash table for this one so we don't leak
1758 if (dladdr ((gpointer) func, &dl_info) && dl_info.dli_sname) {
1759 gchar *name = g_strdup (dl_info.dli_sname);
1761 _gst_debug_register_funcptr (func, name);
1766 gchar *name = g_strdup_printf ("%p", (gpointer) func);
1768 _gst_debug_register_funcptr (func, name);
1774 _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname)
1776 gpointer ptr = (gpointer) func;
1778 g_mutex_lock (&__dbg_functions_mutex);
1780 if (!__gst_function_pointers)
1781 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1782 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1783 g_hash_table_insert (__gst_function_pointers, ptr, (gpointer) ptrname);
1785 g_mutex_unlock (&__dbg_functions_mutex);
1788 /*** PRINTF EXTENSIONS ********************************************************/
1790 #ifdef GST_USING_PRINTF_EXTENSION
1792 _gst_info_printf_extension_ptr (FILE * stream, const struct printf_info *info,
1793 const void *const *args)
1800 ptr = *(void **) args[0];
1802 buffer = gst_debug_print_object (ptr);
1803 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1811 _gst_info_printf_extension_segment (FILE * stream,
1812 const struct printf_info *info, const void *const *args)
1819 ptr = *(void **) args[0];
1821 buffer = gst_debug_print_segment (ptr);
1822 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1829 #ifdef HAVE_REGISTER_PRINTF_SPECIFIER
1831 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1832 int *argtypes, int *size)
1835 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1840 argtypes[0] = PA_POINTER;
1841 #ifdef HAVE_REGISTER_PRINTF_SPECIFIER
1842 *size = sizeof (gpointer);
1847 #endif /* GST_USING_PRINTF_EXTENSION */
1850 gst_info_dump_mem_line (gchar * linebuf, gsize linebuf_size,
1851 const guint8 * mem, gsize mem_offset, gsize mem_size)
1853 gchar hexstr[50], ascstr[18], digitstr[4];
1865 while (i < mem_size) {
1866 ascstr[i] = (g_ascii_isprint (mem[i])) ? mem[i] : '.';
1867 g_snprintf (digitstr, sizeof (digitstr), "%02x ", mem[i]);
1868 g_strlcat (hexstr, digitstr, sizeof (hexstr));
1874 g_snprintf (linebuf, linebuf_size, "%08x: %-48.48s %-16.16s",
1875 (guint) mem_offset, hexstr, ascstr);
1879 _gst_debug_dump_mem (GstDebugCategory * cat, const gchar * file,
1880 const gchar * func, gint line, GObject * obj, const gchar * msg,
1881 const guint8 * data, guint length)
1885 gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "--------"
1886 "-------------------------------------------------------------------");
1888 if (msg != NULL && *msg != '\0') {
1889 gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "%s", msg);
1892 while (off < length) {
1895 /* gst_info_dump_mem_line will process 16 bytes at most */
1896 gst_info_dump_mem_line (buf, sizeof (buf), data, off, length - off);
1897 gst_debug_log (cat, GST_LEVEL_MEMDUMP, file, func, line, obj, "%s", buf);
1901 gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "--------"
1902 "-------------------------------------------------------------------");
1905 #else /* !GST_DISABLE_GST_DEBUG */
1906 #ifndef GST_REMOVE_DISABLED
1909 _gst_debug_category_new (const gchar * name, guint color,
1910 const gchar * description)
1916 _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname)
1920 /* This function MUST NOT return NULL */
1922 _gst_debug_nameof_funcptr (GstDebugFuncPtr func)
1928 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
1929 const gchar * file, const gchar * function, gint line,
1930 GObject * object, const gchar * format, ...)
1935 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
1936 const gchar * file, const gchar * function, gint line,
1937 GObject * object, const gchar * format, va_list args)
1942 gst_debug_message_get (GstDebugMessage * message)
1948 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
1949 const gchar * file, const gchar * function, gint line,
1950 GObject * object, GstDebugMessage * message, gpointer unused)
1955 gst_debug_level_get_name (GstDebugLevel level)
1961 gst_debug_add_log_function (GstLogFunction func, gpointer user_data,
1962 GDestroyNotify notify)
1967 gst_debug_remove_log_function (GstLogFunction func)
1973 gst_debug_remove_log_function_by_data (gpointer data)
1979 gst_debug_set_active (gboolean active)
1984 gst_debug_is_active (void)
1990 gst_debug_set_colored (gboolean colored)
1995 gst_debug_is_colored (void)
2001 gst_debug_set_threshold_from_string (const gchar * list, gboolean reset)
2006 gst_debug_set_default_threshold (GstDebugLevel level)
2011 gst_debug_get_default_threshold (void)
2013 return GST_LEVEL_NONE;
2017 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
2022 gst_debug_unset_threshold_for_name (const gchar * name)
2027 gst_debug_category_free (GstDebugCategory * category)
2032 gst_debug_category_set_threshold (GstDebugCategory * category,
2033 GstDebugLevel level)
2038 gst_debug_category_reset_threshold (GstDebugCategory * category)
2043 gst_debug_category_get_threshold (GstDebugCategory * category)
2045 return GST_LEVEL_NONE;
2049 gst_debug_category_get_name (GstDebugCategory * category)
2055 gst_debug_category_get_color (GstDebugCategory * category)
2061 gst_debug_category_get_description (GstDebugCategory * category)
2067 gst_debug_get_all_categories (void)
2073 _gst_debug_get_category (const gchar * name)
2079 gst_debug_construct_term_color (guint colorinfo)
2081 return g_strdup ("00");
2085 gst_debug_construct_win_color (guint colorinfo)
2091 _priv_gst_in_valgrind (void)
2097 _gst_debug_dump_mem (GstDebugCategory * cat, const gchar * file,
2098 const gchar * func, gint line, GObject * obj, const gchar * msg,
2099 const guint8 * data, guint length)
2102 #endif /* GST_REMOVE_DISABLED */
2103 #endif /* GST_DISABLE_GST_DEBUG */
2106 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
2107 /* FIXME make this thread specific */
2108 static GSList *stack_trace = NULL;
2111 __cyg_profile_func_enter (void *this_fn, void *call_site)
2112 G_GNUC_NO_INSTRUMENT;
2113 void __cyg_profile_func_enter (void *this_fn, void *call_site)
2115 gchar *name = _gst_debug_nameof_funcptr (this_fn);
2116 gchar *site = _gst_debug_nameof_funcptr (call_site);
2118 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
2121 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
2122 this_fn, name, call_site, site));
2129 __cyg_profile_func_exit (void *this_fn, void *call_site)
2130 G_GNUC_NO_INSTRUMENT;
2131 void __cyg_profile_func_exit (void *this_fn, void *call_site)
2133 gchar *name = _gst_debug_nameof_funcptr (this_fn);
2135 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
2136 g_free (stack_trace->data);
2137 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
2143 * gst_debug_print_stack_trace:
2145 * If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktrace is available for
2146 * gstreamer code, which can be printed with this function.
2149 gst_debug_print_stack_trace (void)
2151 GSList *walk = stack_trace;
2155 walk = g_slist_next (walk);
2158 gchar *name = (gchar *) walk->data;
2160 g_print ("#%-2d %s\n", count++, name);
2162 walk = g_slist_next (walk);
2167 gst_debug_print_stack_trace (void)
2169 /* nothing because it's compiled out */
2172 #endif /* GST_ENABLE_FUNC_INSTRUMENTATION */