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: #gst-running 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.
53 * |[<!-- language="C" -->
54 * GST_DEBUG_CATEGORY_STATIC (my_category); // define category (statically)
55 * #define GST_CAT_DEFAULT my_category // set as default
57 * After that you only need to initialize the category.
58 * |[<!-- language="C" -->
59 * GST_DEBUG_CATEGORY_INIT (my_category, "my category",
60 * 0, "This is my very own");
62 * Initialization must be done before the category is used first.
64 * in their plugin_init function, libraries and applications should do that
65 * during their initialization.
67 * The whole debugging subsystem can be disabled at build time with passing the
68 * --disable-gst-debug switch to configure. If this is done, every function,
69 * macro and even structs described in this file evaluate to default values or
71 * So don't take addresses of these functions or use other tricks.
72 * If you must do that for some reason, there is still an option.
74 * subsystem was compiled out, #GST_DISABLE_GST_DEBUG is defined in
76 * so you can check that before doing your trick.
77 * Disabling the debugging subsystem will give you a slight (read: unnoticeable)
78 * speed increase and will reduce the size of your compiled code. The GStreamer
79 * library itself becomes around 10% smaller.
81 * Please note that there are naming conventions for the names of debugging
82 * categories. These are explained at GST_DEBUG_CATEGORY_INIT().
86 #include "gst_private.h"
89 #undef gst_debug_remove_log_function
90 #undef gst_debug_add_log_function
92 #ifndef GST_DISABLE_GST_DEBUG
97 #include <stdio.h> /* fprintf */
98 #include <glib/gstdio.h>
101 # include <unistd.h> /* getpid on UNIX */
103 #ifdef HAVE_PROCESS_H
104 # include <process.h> /* getpid on win32 */
106 #include <string.h> /* G_VA_COPY */
108 # define WIN32_LEAN_AND_MEAN /* prevents from including too many things */
109 # include <windows.h> /* GetStdHandle, windows console */
112 #include "gst_private.h"
113 #include "gstutils.h"
114 #include "gstquark.h"
115 #include "gstsegment.h"
116 #include "gstvalue.h"
117 #include "gstcapsfeatures.h"
119 #ifdef HAVE_VALGRIND_VALGRIND_H
120 # include <valgrind/valgrind.h>
122 #include <glib/gprintf.h> /* g_sprintf */
124 /* our own printf implementation with custom extensions to %p for caps etc. */
125 #include "printf/printf.h"
126 #include "printf/printf-extension.h"
128 static char *gst_info_printf_pointer_extension_func (const char *format,
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;
179 GstDebugCategory *_priv_GST_CAT_PROTECTION = NULL;
182 #endif /* !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED) */
184 #ifndef GST_DISABLE_GST_DEBUG
186 /* underscore is to prevent conflict with GST_CAT_DEBUG define */
187 GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
191 #include <rld_interface.h>
192 typedef struct DL_INFO
194 const char *dli_fname;
196 const char *dli_sname;
200 long dli_reserved[4];
204 #define _RLD_DLADDR 14
205 int dladdr (void *address, Dl_info * dl);
208 dladdr (void *address, Dl_info * dl)
212 v = _rld_new_interface (_RLD_DLADDR, address, dl);
218 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
219 static void gst_debug_reset_all_thresholds (void);
221 struct _GstDebugMessage
228 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
229 static GMutex __level_name_mutex;
230 static GSList *__level_name = NULL;
238 /* list of all categories */
239 static GMutex __cat_mutex;
240 static GSList *__categories = NULL;
242 static GstDebugCategory *_gst_debug_get_category_locked (const gchar * name);
245 /* all registered debug handlers */
250 GDestroyNotify notify;
253 static GMutex __log_func_mutex;
254 static GSList *__log_functions = NULL;
256 /* whether to add the default log function in gst_init() */
257 static gboolean add_default_log_func = TRUE;
259 #define PRETTY_TAGS_DEFAULT TRUE
260 static gboolean pretty_tags = PRETTY_TAGS_DEFAULT;
262 static volatile gint G_GNUC_MAY_ALIAS __default_level = GST_LEVEL_DEFAULT;
263 static volatile gint G_GNUC_MAY_ALIAS __use_color = GST_DEBUG_COLOR_MODE_ON;
265 /* FIXME: export this? */
267 _priv_gst_in_valgrind (void)
275 in_valgrind = GST_VG_UNCHECKED;
277 if (in_valgrind == GST_VG_UNCHECKED) {
278 #ifdef HAVE_VALGRIND_VALGRIND_H
279 if (RUNNING_ON_VALGRIND) {
280 GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
281 in_valgrind = GST_VG_INSIDE;
283 GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
284 in_valgrind = GST_VG_NO_VALGRIND;
287 in_valgrind = GST_VG_NO_VALGRIND;
289 g_assert (in_valgrind == GST_VG_NO_VALGRIND ||
290 in_valgrind == GST_VG_INSIDE);
292 return (in_valgrind == GST_VG_INSIDE);
296 _replace_pattern_in_gst_debug_file_name (gchar * name, const char * token, guint val)
299 if ((token_start = strstr (name, token))) {
300 gsize token_len = strlen (token);
301 gchar * name_prefix = name;
302 gchar * name_suffix = token_start + token_len;
303 token_start[0] = '\0';
304 name = g_strdup_printf ("%s%u%s", name_prefix, val, name_suffix);
305 g_free (name_prefix);
311 _priv_gst_debug_file_name (const gchar * env)
315 name = g_strdup (env);
316 name = _replace_pattern_in_gst_debug_file_name (name, "%p", getpid ());
317 name = _replace_pattern_in_gst_debug_file_name (name, "%r", g_random_int ());
322 /* Initialize the debugging system */
324 _priv_gst_debug_init (void)
329 if (add_default_log_func) {
330 env = g_getenv ("GST_DEBUG_FILE");
331 if (env != NULL && *env != '\0') {
332 if (strcmp (env, "-") == 0) {
335 gchar *name = _priv_gst_debug_file_name (env);
336 log_file = g_fopen (name, "w");
338 if (log_file == NULL) {
339 g_printerr ("Could not open log file '%s' for writing: %s\n", env,
348 gst_debug_add_log_function (gst_debug_log_default, log_file, NULL);
351 __gst_printf_pointer_extension_set_func
352 (gst_info_printf_pointer_extension_func);
354 /* do NOT use a single debug function before this line has been run */
355 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
356 GST_DEBUG_UNDERLINE, NULL);
357 _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
358 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
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);
419 _priv_GST_CAT_PROTECTION =
420 _gst_debug_category_new ("GST_PROTECTION", 0, "protection");
422 /* print out the valgrind message if we're in valgrind */
423 _priv_gst_in_valgrind ();
425 env = g_getenv ("GST_DEBUG_OPTIONS");
427 if (strstr (env, "full_tags") || strstr (env, "full-tags"))
429 else if (strstr (env, "pretty_tags") || strstr (env, "pretty-tags"))
433 if (g_getenv ("GST_DEBUG_NO_COLOR") != NULL)
434 gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_OFF);
435 env = g_getenv ("GST_DEBUG_COLOR_MODE");
437 gst_debug_set_color_mode_from_string (env);
439 env = g_getenv ("GST_DEBUG");
441 gst_debug_set_threshold_from_string (env, FALSE);
445 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
446 #define GST_CAT_DEFAULT _GST_CAT_DEBUG
450 * @category: category to log
451 * @level: level of the message is in
452 * @file: the file that emitted the message, usually the __FILE__ identifier
453 * @function: the function that emitted the message
454 * @line: the line from that the message was emitted, usually __LINE__
455 * @object: (transfer none) (allow-none): the object this message relates to,
457 * @format: a printf style format string
458 * @...: optional arguments for the format
460 * Logs the given message using the currently registered debugging handlers.
463 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
464 const gchar * file, const gchar * function, gint line,
465 GObject * object, const gchar * format, ...)
469 va_start (var_args, format);
470 gst_debug_log_valist (category, level, file, function, line, object, format,
475 /* based on g_basename(), which we can't use because it was deprecated */
476 static inline const gchar *
477 gst_path_basename (const gchar * file_name)
479 register const gchar *base;
481 base = strrchr (file_name, G_DIR_SEPARATOR);
484 const gchar *q = strrchr (file_name, '/');
485 if (base == NULL || (q != NULL && q > base))
492 if (g_ascii_isalpha (file_name[0]) && file_name[1] == ':')
493 return file_name + 2;
499 * gst_debug_log_valist:
500 * @category: category to log
501 * @level: level of the message is in
502 * @file: the file that emitted the message, usually the __FILE__ identifier
503 * @function: the function that emitted the message
504 * @line: the line from that the message was emitted, usually __LINE__
505 * @object: (transfer none) (allow-none): the object this message relates to,
507 * @format: a printf style format string
508 * @args: optional arguments for the format
510 * Logs the given message using the currently registered debugging handlers.
513 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
514 const gchar * file, const gchar * function, gint line,
515 GObject * object, const gchar * format, va_list args)
517 GstDebugMessage message;
521 g_return_if_fail (category != NULL);
523 if (level > gst_debug_category_get_threshold (category))
526 g_return_if_fail (file != NULL);
527 g_return_if_fail (function != NULL);
528 g_return_if_fail (format != NULL);
530 message.message = NULL;
531 message.format = format;
532 G_VA_COPY (message.arguments, args);
534 handler = __log_functions;
536 entry = handler->data;
537 handler = g_slist_next (handler);
538 entry->func (category, level, file, function, line, object, &message,
541 g_free (message.message);
542 va_end (message.arguments);
546 * gst_debug_message_get:
547 * @message: a debug message
549 * Gets the string representation of a #GstDebugMessage. This function is used
550 * in debug handlers to extract the message.
552 * Returns: the string representation of a #GstDebugMessage.
555 gst_debug_message_get (GstDebugMessage * message)
557 if (message->message == NULL) {
560 len = __gst_vasprintf (&message->message, message->format,
564 message->message = NULL;
566 return message->message;
569 #define MAX_BUFFER_DUMP_STRING_LEN 100
571 /* structure_to_pretty_string:
572 * @str: a serialized #GstStructure
574 * If the serialized structure contains large buffers such as images the hex
575 * representation of those buffers will be shortened so that the string remains
578 * Returns: the filtered string
581 prettify_structure_string (gchar * str)
583 gchar *pos = str, *end;
585 while ((pos = strstr (pos, "(buffer)"))) {
588 pos += strlen ("(buffer)");
589 for (end = pos; *end != '\0' && *end != ';' && *end != ' '; ++end)
591 if (count > MAX_BUFFER_DUMP_STRING_LEN) {
592 memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 6, "..", 2);
593 memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 4, pos + count - 4, 4);
594 memmove (pos + MAX_BUFFER_DUMP_STRING_LEN, pos + count,
595 strlen (pos + count) + 1);
596 pos += MAX_BUFFER_DUMP_STRING_LEN;
603 static inline gchar *
604 gst_info_structure_to_string (const GstStructure * s)
607 gchar *str = gst_structure_to_string (s);
608 if (G_UNLIKELY (pretty_tags && s->name == GST_QUARK (TAGLIST)))
609 return prettify_structure_string (str);
616 static inline gchar *
617 gst_info_describe_buffer (GstBuffer * buffer)
619 const gchar *offset_str = "none";
620 const gchar *offset_end_str = "none";
621 gchar offset_buf[32], offset_end_buf[32];
623 if (GST_BUFFER_OFFSET_IS_VALID (buffer)) {
624 g_snprintf (offset_buf, sizeof (offset_buf), "%" G_GUINT64_FORMAT,
625 GST_BUFFER_OFFSET (buffer));
626 offset_str = offset_buf;
628 if (GST_BUFFER_OFFSET_END_IS_VALID (buffer)) {
629 g_snprintf (offset_end_buf, sizeof (offset_end_buf), "%" G_GUINT64_FORMAT,
630 GST_BUFFER_OFFSET_END (buffer));
631 offset_end_str = offset_end_buf;
634 return g_strdup_printf ("buffer: %p, pts %" GST_TIME_FORMAT ", dts %"
635 GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT
636 ", offset %s, offset_end %s, flags 0x%x", buffer,
637 GST_TIME_ARGS (GST_BUFFER_PTS (buffer)),
638 GST_TIME_ARGS (GST_BUFFER_DTS (buffer)),
639 GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)),
640 gst_buffer_get_size (buffer), offset_str, offset_end_str,
641 GST_BUFFER_FLAGS (buffer));
644 static inline gchar *
645 gst_info_describe_buffer_list (GstBufferList * list)
647 GstClockTime pts = GST_CLOCK_TIME_NONE;
648 GstClockTime dts = GST_CLOCK_TIME_NONE;
649 gsize total_size = 0;
652 n = gst_buffer_list_length (list);
653 for (i = 0; i < n; ++i) {
654 GstBuffer *buf = gst_buffer_list_get (list, i);
657 pts = GST_BUFFER_PTS (buf);
658 dts = GST_BUFFER_DTS (buf);
661 total_size += gst_buffer_get_size (buf);
664 return g_strdup_printf ("bufferlist: %p, %u buffers, pts %" GST_TIME_FORMAT
665 ", dts %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT, list, n,
666 GST_TIME_ARGS (pts), GST_TIME_ARGS (dts), total_size);
669 static inline gchar *
670 gst_info_describe_event (GstEvent * event)
674 s = gst_info_structure_to_string (gst_event_get_structure (event));
675 ret = g_strdup_printf ("%s event: %p, time %" GST_TIME_FORMAT
676 ", seq-num %d, %s", GST_EVENT_TYPE_NAME (event), event,
677 GST_TIME_ARGS (GST_EVENT_TIMESTAMP (event)), GST_EVENT_SEQNUM (event),
683 static inline gchar *
684 gst_info_describe_message (GstMessage * message)
688 s = gst_info_structure_to_string (gst_message_get_structure (message));
689 ret = g_strdup_printf ("%s message: %p, time %" GST_TIME_FORMAT
690 ", seq-num %d, element '%s', %s", GST_MESSAGE_TYPE_NAME (message),
691 message, GST_TIME_ARGS (GST_MESSAGE_TIMESTAMP (message)),
692 GST_MESSAGE_SEQNUM (message),
693 ((message->src) ? GST_ELEMENT_NAME (message->src) : "(NULL)"),
699 static inline gchar *
700 gst_info_describe_query (GstQuery * query)
704 s = gst_info_structure_to_string (gst_query_get_structure (query));
705 ret = g_strdup_printf ("%s query: %p, %s", GST_QUERY_TYPE_NAME (query),
706 query, (s ? s : "(NULL)"));
712 gst_debug_print_object (gpointer ptr)
714 GObject *object = (GObject *) ptr;
717 /* This is a cute trick to detect unmapped memory, but is unportable,
718 * slow, screws around with madvise, and not actually that useful. */
722 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
723 if (ret == -1 && errno == ENOMEM) {
724 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
729 /* nicely printed object */
730 if (object == NULL) {
731 return g_strdup ("(NULL)");
733 if (GST_IS_CAPS (ptr)) {
734 return gst_caps_to_string ((const GstCaps *) ptr);
736 if (GST_IS_STRUCTURE (ptr)) {
737 return gst_info_structure_to_string ((const GstStructure *) ptr);
739 if (*(GType *) ptr == GST_TYPE_CAPS_FEATURES) {
740 return gst_caps_features_to_string ((const GstCapsFeatures *) ptr);
742 if (GST_IS_TAG_LIST (ptr)) {
743 gchar *str = gst_tag_list_to_string ((GstTagList *) ptr);
744 if (G_UNLIKELY (pretty_tags))
745 return prettify_structure_string (str);
749 if (*(GType *) ptr == GST_TYPE_DATE_TIME) {
750 return __gst_date_time_serialize ((GstDateTime *) ptr, TRUE);
752 if (GST_IS_BUFFER (ptr)) {
753 return gst_info_describe_buffer (GST_BUFFER_CAST (ptr));
755 if (GST_IS_BUFFER_LIST (ptr)) {
756 return gst_info_describe_buffer_list (GST_BUFFER_LIST_CAST (ptr));
759 if (*(guint32 *) ptr == 0xffffffff) {
760 return g_strdup_printf ("<poisoned@%p>", ptr);
763 if (GST_IS_MESSAGE (object)) {
764 return gst_info_describe_message (GST_MESSAGE_CAST (object));
766 if (GST_IS_QUERY (object)) {
767 return gst_info_describe_query (GST_QUERY_CAST (object));
769 if (GST_IS_EVENT (object)) {
770 return gst_info_describe_event (GST_EVENT_CAST (object));
772 if (GST_IS_CONTEXT (object)) {
773 GstContext *context = GST_CONTEXT_CAST (object);
776 const GstStructure *structure;
778 type = gst_context_get_context_type (context);
779 structure = gst_context_get_structure (context);
781 s = gst_info_structure_to_string (structure);
783 ret = g_strdup_printf ("context '%s'='%s'", type, s);
787 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
788 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
790 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
791 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
793 if (G_IS_OBJECT (object)) {
794 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
797 return g_strdup_printf ("%p", ptr);
801 gst_debug_print_segment (gpointer ptr)
803 GstSegment *segment = (GstSegment *) ptr;
805 /* nicely printed segment */
806 if (segment == NULL) {
807 return g_strdup ("(NULL)");
810 switch (segment->format) {
811 case GST_FORMAT_UNDEFINED:{
812 return g_strdup_printf ("UNDEFINED segment");
814 case GST_FORMAT_TIME:{
815 return g_strdup_printf ("time segment start=%" GST_TIME_FORMAT
816 ", offset=%" GST_TIME_FORMAT ", stop=%" GST_TIME_FORMAT
817 ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" GST_TIME_FORMAT
818 ", base=%" GST_TIME_FORMAT ", position %" GST_TIME_FORMAT
819 ", duration %" GST_TIME_FORMAT, GST_TIME_ARGS (segment->start),
820 GST_TIME_ARGS (segment->offset), GST_TIME_ARGS (segment->stop),
821 segment->rate, segment->applied_rate, (guint) segment->flags,
822 GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->base),
823 GST_TIME_ARGS (segment->position), GST_TIME_ARGS (segment->duration));
826 const gchar *format_name;
828 format_name = gst_format_get_name (segment->format);
829 if (G_UNLIKELY (format_name == NULL))
830 format_name = "(UNKNOWN FORMAT)";
831 return g_strdup_printf ("%s segment start=%" G_GINT64_FORMAT
832 ", offset=%" G_GINT64_FORMAT ", stop=%" G_GINT64_FORMAT
833 ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" G_GINT64_FORMAT
834 ", base=%" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT
835 ", duration %" G_GINT64_FORMAT, format_name, segment->start,
836 segment->offset, segment->stop, segment->rate, segment->applied_rate,
837 (guint) segment->flags, segment->time, segment->base,
838 segment->position, segment->duration);
844 gst_info_printf_pointer_extension_func (const char *format, void *ptr)
848 if (format[0] == 'p' && format[1] == '\a') {
850 case 'A': /* GST_PTR_FORMAT */
851 s = gst_debug_print_object (ptr);
853 case 'B': /* GST_SEGMENT_FORMAT */
854 s = gst_debug_print_segment (ptr);
856 case 'a': /* GST_WRAPPED_PTR_FORMAT */
857 s = priv_gst_string_take_and_wrap (gst_debug_print_object (ptr));
860 /* must have been compiled against a newer version with an extension
861 * we don't known about yet - just ignore and fallback to %p below */
866 s = g_strdup_printf ("%p", ptr);
872 * gst_debug_construct_term_color:
873 * @colorinfo: the color info
875 * Constructs a string that can be used for getting the desired color in color
877 * You need to free the string after use.
879 * Returns: (transfer full) (type gchar*): a string containing the color
883 gst_debug_construct_term_color (guint colorinfo)
887 color = g_string_new ("\033[00");
889 if (colorinfo & GST_DEBUG_BOLD) {
890 g_string_append_len (color, ";01", 3);
892 if (colorinfo & GST_DEBUG_UNDERLINE) {
893 g_string_append_len (color, ";04", 3);
895 if (colorinfo & GST_DEBUG_FG_MASK) {
896 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
898 if (colorinfo & GST_DEBUG_BG_MASK) {
899 g_string_append_printf (color, ";4%1d",
900 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
902 g_string_append_c (color, 'm');
904 return g_string_free (color, FALSE);
908 * gst_debug_construct_win_color:
909 * @colorinfo: the color info
911 * Constructs an integer that can be used for getting the desired color in
912 * windows' terminals (cmd.exe). As there is no mean to underline, we simply
913 * ignore this attribute.
915 * This function returns 0 on non-windows machines.
917 * Returns: an integer containing the color definition
920 gst_debug_construct_win_color (guint colorinfo)
924 static const guchar ansi_to_win_fg[8] = {
926 FOREGROUND_RED, /* red */
927 FOREGROUND_GREEN, /* green */
928 FOREGROUND_RED | FOREGROUND_GREEN, /* yellow */
929 FOREGROUND_BLUE, /* blue */
930 FOREGROUND_RED | FOREGROUND_BLUE, /* magenta */
931 FOREGROUND_GREEN | FOREGROUND_BLUE, /* cyan */
932 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE /* white */
934 static const guchar ansi_to_win_bg[8] = {
938 BACKGROUND_RED | BACKGROUND_GREEN,
940 BACKGROUND_RED | BACKGROUND_BLUE,
941 BACKGROUND_GREEN | FOREGROUND_BLUE,
942 BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
945 /* we draw black as white, as cmd.exe can only have black bg */
946 if ((colorinfo & (GST_DEBUG_FG_MASK | GST_DEBUG_BG_MASK)) == 0) {
947 color = ansi_to_win_fg[7];
949 if (colorinfo & GST_DEBUG_UNDERLINE) {
950 color |= BACKGROUND_INTENSITY;
952 if (colorinfo & GST_DEBUG_BOLD) {
953 color |= FOREGROUND_INTENSITY;
955 if (colorinfo & GST_DEBUG_FG_MASK) {
956 color |= ansi_to_win_fg[colorinfo & GST_DEBUG_FG_MASK];
958 if (colorinfo & GST_DEBUG_BG_MASK) {
959 color |= ansi_to_win_bg[(colorinfo & GST_DEBUG_BG_MASK) >> 4];
965 /* width of %p varies depending on actual value of pointer, which can make
966 * output unevenly aligned if multiple threads are involved, hence the %14p
967 * (should really be %18p, but %14p seems a good compromise between too many
968 * white spaces and likely unalignment on my system) */
969 #if defined (GLIB_SIZEOF_VOID_P) && GLIB_SIZEOF_VOID_P == 8
970 #define PTR_FMT "%14p"
972 #define PTR_FMT "%10p"
974 #define PID_FMT "%5d"
975 #define CAT_FMT "%20s %s:%d:%s:%s"
978 static const guchar levelcolormap_w32[GST_LEVEL_COUNT] = {
980 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
981 /* GST_LEVEL_ERROR */
982 FOREGROUND_RED | FOREGROUND_INTENSITY,
983 /* GST_LEVEL_WARNING */
984 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY,
986 FOREGROUND_GREEN | FOREGROUND_INTENSITY,
987 /* GST_LEVEL_DEBUG */
988 FOREGROUND_GREEN | FOREGROUND_BLUE,
990 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
991 /* GST_LEVEL_FIXME */
992 FOREGROUND_RED | FOREGROUND_GREEN,
993 /* GST_LEVEL_TRACE */
994 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
995 /* placeholder for log level 8 */
997 /* GST_LEVEL_MEMDUMP */
998 FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
1001 static const guchar available_colors[] = {
1002 FOREGROUND_RED, FOREGROUND_GREEN, FOREGROUND_RED | FOREGROUND_GREEN,
1003 FOREGROUND_BLUE, FOREGROUND_RED | FOREGROUND_BLUE,
1004 FOREGROUND_GREEN | FOREGROUND_BLUE,
1006 #endif /* G_OS_WIN32 */
1007 static const gchar *levelcolormap[GST_LEVEL_COUNT] = {
1008 "\033[37m", /* GST_LEVEL_NONE */
1009 "\033[31;01m", /* GST_LEVEL_ERROR */
1010 "\033[33;01m", /* GST_LEVEL_WARNING */
1011 "\033[32;01m", /* GST_LEVEL_INFO */
1012 "\033[36m", /* GST_LEVEL_DEBUG */
1013 "\033[37m", /* GST_LEVEL_LOG */
1014 "\033[33;01m", /* GST_LEVEL_FIXME */
1015 "\033[37m", /* GST_LEVEL_TRACE */
1016 "\033[37m", /* placeholder for log level 8 */
1017 "\033[37m" /* GST_LEVEL_MEMDUMP */
1021 * gst_debug_log_default:
1022 * @category: category to log
1023 * @level: level of the message
1024 * @file: the file that emitted the message, usually the __FILE__ identifier
1025 * @function: the function that emitted the message
1026 * @line: the line from that the message was emitted, usually __LINE__
1027 * @message: the actual message
1028 * @object: (transfer none) (allow-none): the object this message relates to,
1030 * @user_data: the FILE* to log to
1032 * The default logging handler used by GStreamer. Logging functions get called
1033 * whenever a macro like GST_DEBUG or similar is used. By default this function
1034 * is setup to output the message and additional info to stderr (or the log file
1035 * specified via the GST_DEBUG_FILE environment variable) as received via
1038 * You can add other handlers by using gst_debug_add_log_function().
1039 * And you can remove this handler by calling
1040 * gst_debug_remove_log_function(gst_debug_log_default);
1043 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
1044 const gchar * file, const gchar * function, gint line,
1045 GObject * object, GstDebugMessage * message, gpointer user_data)
1048 GstClockTime elapsed;
1050 GstDebugColorMode color_mode;
1051 FILE *log_file = user_data ? user_data : stderr;
1054 /* __FILE__ might be a file name or an absolute path or a
1055 * relative path, irrespective of the exact compiler used,
1056 * in which case we want to shorten it to the filename for
1059 if (c == '.' || c == '/' || c == '\\' || (c != '\0' && file[1] == ':')) {
1060 file = gst_path_basename (file);
1064 color_mode = gst_debug_get_color_mode ();
1067 obj = gst_debug_print_object (object);
1072 elapsed = GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ());
1074 if (color_mode != GST_DEBUG_COLOR_MODE_OFF) {
1076 /* We take a lock to keep colors and content together.
1077 * Maybe there is a better way but for now this will do the right
1079 static GMutex win_print_mutex;
1080 g_mutex_lock (&win_print_mutex);
1081 if (color_mode == GST_DEBUG_COLOR_MODE_UNIX) {
1083 /* colors, non-windows */
1084 gchar *color = NULL;
1087 const gchar *levelcolor;
1089 color = gst_debug_construct_term_color (gst_debug_category_get_color
1092 g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31);
1093 levelcolor = levelcolormap[level];
1095 #define PRINT_FMT " %s"PID_FMT"%s "PTR_FMT" %s%s%s %s"CAT_FMT"%s %s\n"
1096 fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
1097 pidcolor, pid, clear, g_thread_self (), levelcolor,
1098 gst_debug_level_get_name (level), clear, color,
1099 gst_debug_category_get_name (category), file, line, function, obj,
1100 clear, gst_debug_message_get (message));
1106 /* colors, windows. */
1107 const gint clear = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
1108 #define SET_COLOR(c) G_STMT_START { \
1109 if (log_file == stderr) \
1110 SetConsoleTextAttribute (GetStdHandle (STD_ERROR_HANDLE), (c)); \
1113 fprintf (log_file, "%" GST_TIME_FORMAT " ", GST_TIME_ARGS (elapsed));
1116 SET_COLOR (available_colors[pid % G_N_ELEMENTS (available_colors)]);
1117 fprintf (log_file, PID_FMT, pid);
1121 fprintf (log_file, " " PTR_FMT " ", g_thread_self ());
1124 SET_COLOR (levelcolormap_w32[level]);
1125 fprintf (log_file, "%s ", gst_debug_level_get_name (level));
1128 SET_COLOR (gst_debug_construct_win_color (gst_debug_category_get_color
1130 fprintf (log_file, CAT_FMT, gst_debug_category_get_name (category),
1131 file, line, function, obj);
1135 fprintf (log_file, " %s\n", gst_debug_message_get (message));
1138 g_mutex_unlock (&win_print_mutex);
1141 /* no color, all platforms */
1142 #define PRINT_FMT " "PID_FMT" "PTR_FMT" %s "CAT_FMT" %s\n"
1143 fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
1144 pid, g_thread_self (), gst_debug_level_get_name (level),
1145 gst_debug_category_get_name (category), file, line, function, obj,
1146 gst_debug_message_get (message));
1156 * gst_debug_level_get_name:
1157 * @level: the level to get the name for
1159 * Get the string representation of a debugging level
1164 gst_debug_level_get_name (GstDebugLevel level)
1167 case GST_LEVEL_NONE:
1169 case GST_LEVEL_ERROR:
1171 case GST_LEVEL_WARNING:
1173 case GST_LEVEL_INFO:
1175 case GST_LEVEL_DEBUG:
1179 case GST_LEVEL_FIXME:
1181 case GST_LEVEL_TRACE:
1183 case GST_LEVEL_MEMDUMP:
1186 g_warning ("invalid level specified for gst_debug_level_get_name");
1192 * gst_debug_add_log_function:
1193 * @func: the function to use
1194 * @user_data: user data
1195 * @notify: called when @user_data is not used anymore
1197 * Adds the logging function to the list of logging functions.
1198 * Be sure to use #G_GNUC_NO_INSTRUMENT on that function, it is needed.
1201 gst_debug_add_log_function (GstLogFunction func, gpointer user_data,
1202 GDestroyNotify notify)
1204 LogFuncEntry *entry;
1208 func = gst_debug_log_default;
1210 entry = g_slice_new (LogFuncEntry);
1212 entry->user_data = user_data;
1213 entry->notify = notify;
1214 /* FIXME: we leak the old list here - other threads might access it right now
1215 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
1216 * but that is waaay costly.
1217 * It'd probably be clever to use some kind of RCU here, but I don't know
1218 * anything about that.
1220 g_mutex_lock (&__log_func_mutex);
1221 list = g_slist_copy (__log_functions);
1222 __log_functions = g_slist_prepend (list, entry);
1223 g_mutex_unlock (&__log_func_mutex);
1225 if (gst_is_initialized ())
1226 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
1231 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
1233 gpointer entryfunc = (gpointer) (((LogFuncEntry *) entry)->func);
1235 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
1239 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
1241 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
1243 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
1247 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
1250 GSList *new, *cleanup = NULL;
1253 g_mutex_lock (&__log_func_mutex);
1254 new = __log_functions;
1256 while ((found = g_slist_find_custom (new, data, func))) {
1257 if (new == __log_functions) {
1258 /* make a copy when we have the first hit, so that we modify the copy and
1259 * make that the new list later */
1260 new = g_slist_copy (new);
1263 cleanup = g_slist_prepend (cleanup, found->data);
1264 new = g_slist_delete_link (new, found);
1267 /* FIXME: We leak the old list here. See _add_log_function for why. */
1268 __log_functions = new;
1269 g_mutex_unlock (&__log_func_mutex);
1272 LogFuncEntry *entry = cleanup->data;
1275 entry->notify (entry->user_data);
1277 g_slice_free (LogFuncEntry, entry);
1278 cleanup = g_slist_delete_link (cleanup, cleanup);
1284 * gst_debug_remove_log_function:
1285 * @func: (scope call) (allow-none): the log function to remove, or %NULL to
1286 * remove the default log function
1288 * Removes all registered instances of the given logging functions.
1290 * Returns: How many instances of the function were removed
1293 gst_debug_remove_log_function (GstLogFunction func)
1298 func = gst_debug_log_default;
1301 gst_debug_remove_with_compare_func
1302 (gst_debug_compare_log_function_by_func, (gpointer) func);
1304 if (gst_is_initialized ()) {
1305 GST_DEBUG ("removed log function %p %d times from log function list", func,
1308 /* If the default log function is removed before gst_init() was called,
1309 * set a flag so we don't add it in gst_init() later */
1310 if (func == gst_debug_log_default) {
1311 add_default_log_func = FALSE;
1320 * gst_debug_remove_log_function_by_data:
1321 * @data: user data of the log function to remove
1323 * Removes all registered instances of log functions with the given user data.
1325 * Returns: How many instances of the function were removed
1328 gst_debug_remove_log_function_by_data (gpointer data)
1333 gst_debug_remove_with_compare_func
1334 (gst_debug_compare_log_function_by_data, data);
1336 if (gst_is_initialized ())
1338 ("removed %d log functions with user data %p from log function list",
1345 * gst_debug_set_colored:
1346 * @colored: Whether to use colored output or not
1348 * Sets or unsets the use of coloured debugging output.
1349 * Same as gst_debug_set_color_mode () with the argument being
1350 * being GST_DEBUG_COLOR_MODE_ON or GST_DEBUG_COLOR_MODE_OFF.
1352 * This function may be called before gst_init().
1355 gst_debug_set_colored (gboolean colored)
1357 GstDebugColorMode new_mode;
1358 new_mode = colored ? GST_DEBUG_COLOR_MODE_ON : GST_DEBUG_COLOR_MODE_OFF;
1359 g_atomic_int_set (&__use_color, (gint) new_mode);
1363 * gst_debug_set_color_mode:
1364 * @mode: The coloring mode for debug output. See @GstDebugColorMode.
1366 * Changes the coloring mode for debug output.
1368 * This function may be called before gst_init().
1373 gst_debug_set_color_mode (GstDebugColorMode mode)
1375 g_atomic_int_set (&__use_color, mode);
1379 * gst_debug_set_color_mode_from_string:
1380 * @mode: The coloring mode for debug output. One of the following:
1381 * "on", "auto", "off", "disable", "unix".
1383 * Changes the coloring mode for debug output.
1385 * This function may be called before gst_init().
1390 gst_debug_set_color_mode_from_string (const gchar * mode)
1392 if ((strcmp (mode, "on") == 0) || (strcmp (mode, "auto") == 0))
1393 gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_ON);
1394 else if ((strcmp (mode, "off") == 0) || (strcmp (mode, "disable") == 0))
1395 gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_OFF);
1396 else if (strcmp (mode, "unix") == 0)
1397 gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_UNIX);
1401 * gst_debug_is_colored:
1403 * Checks if the debugging output should be colored.
1405 * Returns: %TRUE, if the debug output should be colored.
1408 gst_debug_is_colored (void)
1410 GstDebugColorMode mode = g_atomic_int_get (&__use_color);
1411 return (mode == GST_DEBUG_COLOR_MODE_UNIX || mode == GST_DEBUG_COLOR_MODE_ON);
1415 * gst_debug_get_color_mode:
1417 * Changes the coloring mode for debug output.
1419 * Returns: see @GstDebugColorMode for possible values.
1424 gst_debug_get_color_mode (void)
1426 return g_atomic_int_get (&__use_color);
1430 * gst_debug_set_active:
1431 * @active: Whether to use debugging output or not
1433 * If activated, debugging messages are sent to the debugging
1435 * It makes sense to deactivate it for speed issues.
1436 * <note><para>This function is not threadsafe. It makes sense to only call it
1437 * during initialization.</para></note>
1440 gst_debug_set_active (gboolean active)
1442 _gst_debug_enabled = active;
1444 _gst_debug_min = GST_LEVEL_COUNT;
1446 _gst_debug_min = GST_LEVEL_NONE;
1450 * gst_debug_is_active:
1452 * Checks if debugging output is activated.
1454 * Returns: %TRUE, if debugging is activated
1457 gst_debug_is_active (void)
1459 return _gst_debug_enabled;
1463 * gst_debug_set_default_threshold:
1464 * @level: level to set
1466 * Sets the default threshold to the given level and updates all categories to
1467 * use this threshold.
1469 * This function may be called before gst_init().
1472 gst_debug_set_default_threshold (GstDebugLevel level)
1474 g_atomic_int_set (&__default_level, level);
1475 gst_debug_reset_all_thresholds ();
1479 * gst_debug_get_default_threshold:
1481 * Returns the default threshold that is used for new categories.
1483 * Returns: the default threshold level
1486 gst_debug_get_default_threshold (void)
1488 return (GstDebugLevel) g_atomic_int_get (&__default_level);
1492 gst_debug_reset_threshold (gpointer category, gpointer unused)
1494 GstDebugCategory *cat = (GstDebugCategory *) category;
1497 g_mutex_lock (&__level_name_mutex);
1498 walk = __level_name;
1500 LevelNameEntry *entry = walk->data;
1502 walk = g_slist_next (walk);
1503 if (g_pattern_match_string (entry->pat, cat->name)) {
1504 if (gst_is_initialized ())
1505 GST_LOG ("category %s matches pattern %p - gets set to level %d",
1506 cat->name, entry->pat, entry->level);
1507 gst_debug_category_set_threshold (cat, entry->level);
1511 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
1514 g_mutex_unlock (&__level_name_mutex);
1518 gst_debug_reset_all_thresholds (void)
1520 g_mutex_lock (&__cat_mutex);
1521 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
1522 g_mutex_unlock (&__cat_mutex);
1526 for_each_threshold_by_entry (gpointer data, gpointer user_data)
1528 GstDebugCategory *cat = (GstDebugCategory *) data;
1529 LevelNameEntry *entry = (LevelNameEntry *) user_data;
1531 if (g_pattern_match_string (entry->pat, cat->name)) {
1532 if (gst_is_initialized ())
1533 GST_LOG ("category %s matches pattern %p - gets set to level %d",
1534 cat->name, entry->pat, entry->level);
1535 gst_debug_category_set_threshold (cat, entry->level);
1540 * gst_debug_set_threshold_for_name:
1541 * @name: name of the categories to set
1542 * @level: level to set them to
1544 * Sets all categories which match the given glob style pattern to the given
1548 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
1551 LevelNameEntry *entry;
1553 g_return_if_fail (name != NULL);
1555 pat = g_pattern_spec_new (name);
1556 entry = g_slice_new (LevelNameEntry);
1558 entry->level = level;
1559 g_mutex_lock (&__level_name_mutex);
1560 __level_name = g_slist_prepend (__level_name, entry);
1561 g_mutex_unlock (&__level_name_mutex);
1562 g_mutex_lock (&__cat_mutex);
1563 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
1564 g_mutex_unlock (&__cat_mutex);
1568 * gst_debug_unset_threshold_for_name:
1569 * @name: name of the categories to set
1571 * Resets all categories with the given name back to the default level.
1574 gst_debug_unset_threshold_for_name (const gchar * name)
1579 g_return_if_fail (name != NULL);
1581 pat = g_pattern_spec_new (name);
1582 g_mutex_lock (&__level_name_mutex);
1583 walk = __level_name;
1584 /* improve this if you want, it's mighty slow */
1586 LevelNameEntry *entry = walk->data;
1588 if (g_pattern_spec_equal (entry->pat, pat)) {
1589 __level_name = g_slist_remove_link (__level_name, walk);
1590 g_pattern_spec_free (entry->pat);
1591 g_slice_free (LevelNameEntry, entry);
1592 g_slist_free_1 (walk);
1593 walk = __level_name;
1595 walk = g_slist_next (walk);
1598 g_mutex_unlock (&__level_name_mutex);
1599 g_pattern_spec_free (pat);
1600 gst_debug_reset_all_thresholds ();
1604 _gst_debug_category_new (const gchar * name, guint color,
1605 const gchar * description)
1607 GstDebugCategory *cat, *catfound;
1609 g_return_val_if_fail (name != NULL, NULL);
1611 cat = g_slice_new (GstDebugCategory);
1612 cat->name = g_strdup (name);
1614 if (description != NULL) {
1615 cat->description = g_strdup (description);
1617 cat->description = g_strdup ("no description");
1619 g_atomic_int_set (&cat->threshold, 0);
1620 gst_debug_reset_threshold (cat, NULL);
1622 /* add to category list */
1623 g_mutex_lock (&__cat_mutex);
1624 catfound = _gst_debug_get_category_locked (name);
1626 g_free ((gpointer) cat->name);
1627 g_free ((gpointer) cat->description);
1628 g_slice_free (GstDebugCategory, cat);
1631 __categories = g_slist_prepend (__categories, cat);
1633 g_mutex_unlock (&__cat_mutex);
1639 * gst_debug_category_free:
1640 * @category: #GstDebugCategory to free.
1642 * Removes and frees the category and all associated resources.
1645 gst_debug_category_free (GstDebugCategory * category)
1647 if (category == NULL)
1650 /* remove from category list */
1651 g_mutex_lock (&__cat_mutex);
1652 __categories = g_slist_remove (__categories, category);
1653 g_mutex_unlock (&__cat_mutex);
1655 g_free ((gpointer) category->name);
1656 g_free ((gpointer) category->description);
1657 g_slice_free (GstDebugCategory, category);
1661 * gst_debug_category_set_threshold:
1662 * @category: a #GstDebugCategory to set threshold of.
1663 * @level: the #GstDebugLevel threshold to set.
1665 * Sets the threshold of the category to the given level. Debug information will
1666 * only be output if the threshold is lower or equal to the level of the
1667 * debugging message.
1669 * Do not use this function in production code, because other functions may
1670 * change the threshold of categories as side effect. It is however a nice
1671 * function to use when debugging (even from gdb).
1675 gst_debug_category_set_threshold (GstDebugCategory * category,
1676 GstDebugLevel level)
1678 g_return_if_fail (category != NULL);
1680 if (level > _gst_debug_min) {
1681 _gst_debug_enabled = TRUE;
1682 _gst_debug_min = level;
1685 g_atomic_int_set (&category->threshold, level);
1689 * gst_debug_category_reset_threshold:
1690 * @category: a #GstDebugCategory to reset threshold of.
1692 * Resets the threshold of the category to the default level. Debug information
1693 * will only be output if the threshold is lower or equal to the level of the
1694 * debugging message.
1695 * Use this function to set the threshold back to where it was after using
1696 * gst_debug_category_set_threshold().
1699 gst_debug_category_reset_threshold (GstDebugCategory * category)
1701 gst_debug_reset_threshold (category, NULL);
1705 * gst_debug_category_get_threshold:
1706 * @category: a #GstDebugCategory to get threshold of.
1708 * Returns the threshold of a #GstDebugCategory.
1710 * Returns: the #GstDebugLevel that is used as threshold.
1713 gst_debug_category_get_threshold (GstDebugCategory * category)
1715 return (GstDebugLevel) g_atomic_int_get (&category->threshold);
1719 * gst_debug_category_get_name:
1720 * @category: a #GstDebugCategory to get name of.
1722 * Returns the name of a debug category.
1724 * Returns: the name of the category.
1727 gst_debug_category_get_name (GstDebugCategory * category)
1729 return category->name;
1733 * gst_debug_category_get_color:
1734 * @category: a #GstDebugCategory to get the color of.
1736 * Returns the color of a debug category used when printing output in this
1739 * Returns: the color of the category.
1742 gst_debug_category_get_color (GstDebugCategory * category)
1744 return category->color;
1748 * gst_debug_category_get_description:
1749 * @category: a #GstDebugCategory to get the description of.
1751 * Returns the description of a debug category.
1753 * Returns: the description of the category.
1756 gst_debug_category_get_description (GstDebugCategory * category)
1758 return category->description;
1762 * gst_debug_get_all_categories:
1764 * Returns a snapshot of a all categories that are currently in use . This list
1765 * may change anytime.
1766 * The caller has to free the list after use.
1768 * Returns: (transfer container) (element-type Gst.DebugCategory): the list of
1772 gst_debug_get_all_categories (void)
1776 g_mutex_lock (&__cat_mutex);
1777 ret = g_slist_copy (__categories);
1778 g_mutex_unlock (&__cat_mutex);
1783 static GstDebugCategory *
1784 _gst_debug_get_category_locked (const gchar * name)
1786 GstDebugCategory *ret = NULL;
1789 for (node = __categories; node; node = g_slist_next (node)) {
1790 ret = (GstDebugCategory *) node->data;
1791 if (!strcmp (name, ret->name)) {
1799 _gst_debug_get_category (const gchar * name)
1801 GstDebugCategory *ret;
1803 g_mutex_lock (&__cat_mutex);
1804 ret = _gst_debug_get_category_locked (name);
1805 g_mutex_unlock (&__cat_mutex);
1811 parse_debug_category (gchar * str, const gchar ** category)
1816 /* works in place */
1819 if (str[0] != '\0') {
1828 parse_debug_level (gchar * str, GstDebugLevel * level)
1833 /* works in place */
1836 if (g_ascii_isdigit (str[0])) {
1839 l = strtoul (str, &endptr, 10);
1840 if (endptr > str && endptr[0] == 0) {
1841 *level = (GstDebugLevel) l;
1845 } else if (strcmp (str, "ERROR") == 0) {
1846 *level = GST_LEVEL_ERROR;
1847 } else if (strncmp (str, "WARN", 4) == 0) {
1848 *level = GST_LEVEL_WARNING;
1849 } else if (strcmp (str, "FIXME") == 0) {
1850 *level = GST_LEVEL_FIXME;
1851 } else if (strcmp (str, "INFO") == 0) {
1852 *level = GST_LEVEL_INFO;
1853 } else if (strcmp (str, "DEBUG") == 0) {
1854 *level = GST_LEVEL_DEBUG;
1855 } else if (strcmp (str, "LOG") == 0) {
1856 *level = GST_LEVEL_LOG;
1857 } else if (strcmp (str, "TRACE") == 0) {
1858 *level = GST_LEVEL_TRACE;
1859 } else if (strcmp (str, "MEMDUMP") == 0) {
1860 *level = GST_LEVEL_MEMDUMP;
1868 * gst_debug_set_threshold_from_string:
1869 * @list: comma-separated list of "category:level" pairs to be used
1870 * as debug logging levels
1871 * @reset: %TRUE to clear all previously-set debug levels before setting
1873 * %FALSE if adding the threshold described by @list to the one already set.
1875 * Sets the debug logging wanted in the same form as with the GST_DEBUG
1876 * environment variable. You can use wildcards such as '*', but note that
1877 * the order matters when you use wild cards, e.g. "foosrc:6,*src:3,*:2" sets
1878 * everything to log level 2.
1883 gst_debug_set_threshold_from_string (const gchar * list, gboolean reset)
1891 gst_debug_set_default_threshold (0);
1893 split = g_strsplit (list, ",", 0);
1895 for (walk = split; *walk; walk++) {
1896 if (strchr (*walk, ':')) {
1897 gchar **values = g_strsplit (*walk, ":", 2);
1899 if (values[0] && values[1]) {
1900 GstDebugLevel level;
1901 const gchar *category;
1903 if (parse_debug_category (values[0], &category)
1904 && parse_debug_level (values[1], &level))
1905 gst_debug_set_threshold_for_name (category, level);
1908 g_strfreev (values);
1910 GstDebugLevel level;
1912 if (parse_debug_level (*walk, &level))
1913 gst_debug_set_default_threshold (level);
1920 /*** FUNCTION POINTERS ********************************************************/
1922 static GHashTable *__gst_function_pointers; /* NULL */
1923 static GMutex __dbg_functions_mutex;
1925 /* This function MUST NOT return NULL */
1927 _gst_debug_nameof_funcptr (GstDebugFuncPtr func)
1935 if (G_UNLIKELY (func == NULL))
1938 g_mutex_lock (&__dbg_functions_mutex);
1939 if (G_LIKELY (__gst_function_pointers)) {
1940 ptrname = g_hash_table_lookup (__gst_function_pointers, (gpointer) func);
1941 g_mutex_unlock (&__dbg_functions_mutex);
1942 if (G_LIKELY (ptrname))
1945 g_mutex_unlock (&__dbg_functions_mutex);
1947 /* we need to create an entry in the hash table for this one so we don't leak
1950 if (dladdr ((gpointer) func, &dl_info) && dl_info.dli_sname) {
1951 gchar *name = g_strdup (dl_info.dli_sname);
1953 _gst_debug_register_funcptr (func, name);
1958 gchar *name = g_strdup_printf ("%p", (gpointer) func);
1960 _gst_debug_register_funcptr (func, name);
1966 _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname)
1968 gpointer ptr = (gpointer) func;
1970 g_mutex_lock (&__dbg_functions_mutex);
1972 if (!__gst_function_pointers)
1973 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1974 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1975 g_hash_table_insert (__gst_function_pointers, ptr, (gpointer) ptrname);
1977 g_mutex_unlock (&__dbg_functions_mutex);
1981 gst_info_dump_mem_line (gchar * linebuf, gsize linebuf_size,
1982 const guint8 * mem, gsize mem_offset, gsize mem_size)
1984 gchar hexstr[50], ascstr[18], digitstr[4];
1996 while (i < mem_size) {
1997 ascstr[i] = (g_ascii_isprint (mem[i])) ? mem[i] : '.';
1998 g_snprintf (digitstr, sizeof (digitstr), "%02x ", mem[i]);
1999 g_strlcat (hexstr, digitstr, sizeof (hexstr));
2005 g_snprintf (linebuf, linebuf_size, "%08x: %-48.48s %-16.16s",
2006 (guint) mem_offset, hexstr, ascstr);
2010 _gst_debug_dump_mem (GstDebugCategory * cat, const gchar * file,
2011 const gchar * func, gint line, GObject * obj, const gchar * msg,
2012 const guint8 * data, guint length)
2016 gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "--------"
2017 "-------------------------------------------------------------------");
2019 if (msg != NULL && *msg != '\0') {
2020 gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "%s", msg);
2023 while (off < length) {
2026 /* gst_info_dump_mem_line will process 16 bytes at most */
2027 gst_info_dump_mem_line (buf, sizeof (buf), data, off, length - off);
2028 gst_debug_log (cat, GST_LEVEL_MEMDUMP, file, func, line, obj, "%s", buf);
2032 gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "--------"
2033 "-------------------------------------------------------------------");
2036 #else /* !GST_DISABLE_GST_DEBUG */
2037 #ifndef GST_REMOVE_DISABLED
2040 _gst_debug_category_new (const gchar * name, guint color,
2041 const gchar * description)
2047 _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname)
2051 /* This function MUST NOT return NULL */
2053 _gst_debug_nameof_funcptr (GstDebugFuncPtr func)
2059 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
2060 const gchar * file, const gchar * function, gint line,
2061 GObject * object, const gchar * format, ...)
2066 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
2067 const gchar * file, const gchar * function, gint line,
2068 GObject * object, const gchar * format, va_list args)
2073 gst_debug_message_get (GstDebugMessage * message)
2079 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
2080 const gchar * file, const gchar * function, gint line,
2081 GObject * object, GstDebugMessage * message, gpointer unused)
2086 gst_debug_level_get_name (GstDebugLevel level)
2092 gst_debug_add_log_function (GstLogFunction func, gpointer user_data,
2093 GDestroyNotify notify)
2098 gst_debug_remove_log_function (GstLogFunction func)
2104 gst_debug_remove_log_function_by_data (gpointer data)
2110 gst_debug_set_active (gboolean active)
2115 gst_debug_is_active (void)
2121 gst_debug_set_colored (gboolean colored)
2126 gst_debug_set_color_mode (GstDebugColorMode mode)
2131 gst_debug_set_color_mode_from_string (const gchar * str)
2136 gst_debug_is_colored (void)
2142 gst_debug_get_color_mode (void)
2144 return GST_DEBUG_COLOR_MODE_OFF;
2148 gst_debug_set_threshold_from_string (const gchar * list, gboolean reset)
2153 gst_debug_set_default_threshold (GstDebugLevel level)
2158 gst_debug_get_default_threshold (void)
2160 return GST_LEVEL_NONE;
2164 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
2169 gst_debug_unset_threshold_for_name (const gchar * name)
2174 gst_debug_category_free (GstDebugCategory * category)
2179 gst_debug_category_set_threshold (GstDebugCategory * category,
2180 GstDebugLevel level)
2185 gst_debug_category_reset_threshold (GstDebugCategory * category)
2190 gst_debug_category_get_threshold (GstDebugCategory * category)
2192 return GST_LEVEL_NONE;
2196 gst_debug_category_get_name (GstDebugCategory * category)
2202 gst_debug_category_get_color (GstDebugCategory * category)
2208 gst_debug_category_get_description (GstDebugCategory * category)
2214 gst_debug_get_all_categories (void)
2220 _gst_debug_get_category (const gchar * name)
2226 gst_debug_construct_term_color (guint colorinfo)
2228 return g_strdup ("00");
2232 gst_debug_construct_win_color (guint colorinfo)
2238 _priv_gst_in_valgrind (void)
2244 _gst_debug_dump_mem (GstDebugCategory * cat, const gchar * file,
2245 const gchar * func, gint line, GObject * obj, const gchar * msg,
2246 const guint8 * data, guint length)
2249 #endif /* GST_REMOVE_DISABLED */
2250 #endif /* GST_DISABLE_GST_DEBUG */
2252 /* Need this for _gst_element_error_printf even if GST_REMOVE_DISABLED is set:
2253 * fallback function that cleans up the format string and replaces all pointer
2254 * extension formats with plain %p. */
2255 #ifdef GST_DISABLE_GST_DEBUG
2256 #include <glib/gprintf.h>
2258 __gst_info_fallback_vasprintf (char **result, char const *format, va_list args)
2260 gchar *clean_format, *c;
2266 clean_format = g_strdup (format);
2268 while ((c = strstr (c, "%p\a"))) {
2269 if (c[3] < 'A' || c[3] > 'Z') {
2273 len = strlen (c + 4);
2274 memmove (c + 2, c + 4, len + 1);
2277 while ((c = strstr (clean_format, "%P"))) /* old GST_PTR_FORMAT */
2279 while ((c = strstr (clean_format, "%Q"))) /* old GST_SEGMENT_FORMAT */
2282 len = g_vasprintf (result, clean_format, args);
2284 g_free (clean_format);
2286 if (*result == NULL)
2294 * gst_info_vasprintf:
2295 * @result: (out): the resulting string
2296 * @format: a printf style format string
2297 * @args: the va_list of printf arguments for @format
2299 * Allocates and fills a string large enough (including the terminating null
2300 * byte) to hold the specified printf style @format and @args.
2302 * This function deals with the GStreamer specific printf specifiers
2303 * #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. If you do not have these specifiers
2304 * in your @format string, you do not need to use this function and can use
2305 * alternatives such as g_vasprintf().
2307 * Free @result with g_free().
2309 * Returns: the length of the string allocated into @result or -1 on any error
2314 gst_info_vasprintf (gchar ** result, const gchar * format, va_list args)
2316 /* This will fallback to __gst_info_fallback_vasprintf() via a #define in
2317 * gst_private.h if the debug system is disabled which will remove the gst
2318 * specific printf format specifiers */
2319 return __gst_vasprintf (result, format, args);
2323 * gst_info_strdup_vprintf:
2324 * @format: a printf style format string
2325 * @args: the va_list of printf arguments for @format
2327 * Allocates, fills and returns a null terminated string from the printf style
2328 * @format string and @args.
2330 * See gst_info_vasprintf() for when this function is required.
2332 * Free with g_free().
2334 * Returns: a newly allocated null terminated string or %NULL on any error
2339 gst_info_strdup_vprintf (const gchar * format, va_list args)
2343 if (gst_info_vasprintf (&ret, format, args) < 0)
2350 * gst_info_strdup_printf:
2351 * @format: a printf style format string
2352 * @...: the printf arguments for @format
2354 * Allocates, fills and returns a null terminated string from the printf style
2355 * @format string and corresponding arguments.
2357 * See gst_info_vasprintf() for when this function is required.
2359 * Free with g_free().
2361 * Returns: a newly allocated null terminated string or %NULL on any error
2366 gst_info_strdup_printf (const gchar * format, ...)
2371 va_start (args, format);
2372 ret = gst_info_strdup_vprintf (format, args);
2378 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
2379 /* FIXME make this thread specific */
2380 static GSList *stack_trace = NULL;
2383 __cyg_profile_func_enter (void *this_fn, void *call_site)
2384 G_GNUC_NO_INSTRUMENT;
2385 void __cyg_profile_func_enter (void *this_fn, void *call_site)
2387 gchar *name = _gst_debug_nameof_funcptr (this_fn);
2388 gchar *site = _gst_debug_nameof_funcptr (call_site);
2390 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
2393 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
2394 this_fn, name, call_site, site));
2401 __cyg_profile_func_exit (void *this_fn, void *call_site)
2402 G_GNUC_NO_INSTRUMENT;
2403 void __cyg_profile_func_exit (void *this_fn, void *call_site)
2405 gchar *name = _gst_debug_nameof_funcptr (this_fn);
2407 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
2408 g_free (stack_trace->data);
2409 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
2415 * gst_debug_print_stack_trace:
2417 * If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktrace is available for
2418 * gstreamer code, which can be printed with this function.
2421 gst_debug_print_stack_trace (void)
2423 GSList *walk = stack_trace;
2427 walk = g_slist_next (walk);
2430 gchar *name = (gchar *) walk->data;
2432 g_print ("#%-2d %s\n", count++, name);
2434 walk = g_slist_next (walk);
2439 gst_debug_print_stack_trace (void)
2441 /* nothing because it's compiled out */
2444 #endif /* GST_ENABLE_FUNC_INSTRUMENTATION */