/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000 Wim Taymans * 2003 Benjamin Otte * Copyright (C) 2008-2009 Tim-Philipp Müller * * gstinfo.c: debugging functions * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /** * SECTION:gstinfo * @short_description: Debugging and logging facilities * @see_also: #gstreamer-gstconfig, #gstreamer-Gst for command line parameters * and environment variables that affect the debugging output. * * GStreamer's debugging subsystem is an easy way to get information about what * the application is doing. It is not meant for programming errors. Use GLib * methods (g_warning and friends) for that. * * The debugging subsystem works only after GStreamer has been initialized * - for example by calling gst_init(). * * The debugging subsystem is used to log informational messages while the * application runs. Each messages has some properties attached to it. Among * these properties are the debugging category, the severity (called "level" * here) and an optional #GObject it belongs to. Each of these messages is sent * to all registered debugging handlers, which then handle the messages. * GStreamer attaches a default handler on startup, which outputs requested * messages to stderr. * * Messages are output by using shortcut macros like #GST_DEBUG, * #GST_CAT_ERROR_OBJECT or similar. These all expand to calling gst_debug_log() * with the right parameters. * The only thing a developer will probably want to do is define his own * categories. This is easily done with 3 lines. At the top of your code, * declare * the variables and set the default category. * * * GST_DEBUG_CATEGORY_STATIC (my_category); // define category (statically) * &hash;define GST_CAT_DEFAULT my_category // set as default * * * After that you only need to initialize the category. * * * GST_DEBUG_CATEGORY_INIT (my_category, "my category", * 0, "This is my very own"); * * * Initialization must be done before the category is used first. * Plugins do this * in their plugin_init function, libraries and applications should do that * during their initialization. * * The whole debugging subsystem can be disabled at build time with passing the * --disable-gst-debug switch to configure. If this is done, every function, * macro and even structs described in this file evaluate to default values or * nothing at all. * So don't take addresses of these functions or use other tricks. * If you must do that for some reason, there is still an option. * If the debugging * subsystem was compiled out, #GST_DISABLE_GST_DEBUG is defined in * <gst/gst.h>, * so you can check that before doing your trick. * Disabling the debugging subsystem will give you a slight (read: unnoticeable) * speed increase and will reduce the size of your compiled code. The GStreamer * library itself becomes around 10% smaller. * * Please note that there are naming conventions for the names of debugging * categories. These are explained at GST_DEBUG_CATEGORY_INIT(). */ #define GST_INFO_C #include "gst_private.h" #include "gstinfo.h" #undef gst_debug_remove_log_function #undef gst_debug_add_log_function #ifndef GST_DISABLE_GST_DEBUG #ifdef HAVE_DLFCN_H # include #endif #ifdef HAVE_PRINTF_EXTENSION # include #endif #include /* fprintf */ #include #include #ifdef HAVE_UNISTD_H # include /* getpid on UNIX */ #endif #ifdef HAVE_PROCESS_H # include /* getpid on win32 */ #endif #include /* G_VA_COPY */ #ifdef G_OS_WIN32 # define WIN32_LEAN_AND_MEAN /* prevents from including too many things */ # include /* GetStdHandle, windows console */ #endif #include "gst_private.h" #include "gstutils.h" #include "gstquark.h" #include "gstsegment.h" #ifdef HAVE_VALGRIND_VALGRIND_H # include #endif #include /* g_sprintf */ #endif /* !GST_DISABLE_GST_DEBUG */ /* we want these symbols exported even if debug is disabled, to maintain * ABI compatibility. Unless GST_REMOVE_DISABLED is defined. */ #if !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED) /* disabled by default, as soon as some threshold is set > NONE, * it becomes enabled. */ gboolean __gst_debug_enabled = FALSE; GstDebugLevel __gst_debug_min = GST_LEVEL_NONE; GstDebugCategory *GST_CAT_DEFAULT = NULL; GstDebugCategory *GST_CAT_GST_INIT = NULL; GstDebugCategory *GST_CAT_AUTOPLUG = NULL; GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL; GstDebugCategory *GST_CAT_PARENTAGE = NULL; GstDebugCategory *GST_CAT_STATES = NULL; GstDebugCategory *GST_CAT_SCHEDULING = NULL; GstDebugCategory *GST_CAT_BUFFER = NULL; GstDebugCategory *GST_CAT_BUFFER_LIST = NULL; GstDebugCategory *GST_CAT_BUS = NULL; GstDebugCategory *GST_CAT_CAPS = NULL; GstDebugCategory *GST_CAT_CLOCK = NULL; GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL; GstDebugCategory *GST_CAT_PADS = NULL; GstDebugCategory *GST_CAT_PERFORMANCE = NULL; GstDebugCategory *GST_CAT_PIPELINE = NULL; GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL; GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL; GstDebugCategory *GST_CAT_PROPERTIES = NULL; GstDebugCategory *GST_CAT_TYPES = NULL; GstDebugCategory *GST_CAT_XML = NULL; GstDebugCategory *GST_CAT_NEGOTIATION = NULL; GstDebugCategory *GST_CAT_REFCOUNTING = NULL; GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL; GstDebugCategory *GST_CAT_EVENT = NULL; GstDebugCategory *GST_CAT_MESSAGE = NULL; GstDebugCategory *GST_CAT_PARAMS = NULL; GstDebugCategory *GST_CAT_CALL_TRACE = NULL; GstDebugCategory *GST_CAT_SIGNAL = NULL; GstDebugCategory *GST_CAT_PROBE = NULL; GstDebugCategory *GST_CAT_REGISTRY = NULL; GstDebugCategory *GST_CAT_QOS = NULL; GstDebugCategory *_priv_GST_CAT_POLL = NULL; #endif /* !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED) */ #ifndef GST_DISABLE_GST_DEBUG /* underscore is to prevent conflict with GST_CAT_DEBUG define */ GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG); /* time of initialization, so we get useful debugging output times * FIXME: we use this in gstdebugutils.c, what about a function + macro to * get the running time: GST_DEBUG_RUNNING_TIME */ GstClockTime _priv_gst_info_start_time; #if 0 #if defined __sgi__ #include typedef struct DL_INFO { const char *dli_fname; void *dli_fbase; const char *dli_sname; void *dli_saddr; int dli_version; int dli_reserved1; long dli_reserved[4]; } Dl_info; #define _RLD_DLADDR 14 int dladdr (void *address, Dl_info * dl); int dladdr (void *address, Dl_info * dl) { void *v; v = _rld_new_interface (_RLD_DLADDR, address, dl); return (int) v; } #endif /* __sgi__ */ #endif static void gst_debug_reset_threshold (gpointer category, gpointer unused); static void gst_debug_reset_all_thresholds (void); #ifdef HAVE_PRINTF_EXTENSION static int _gst_info_printf_extension_ptr (FILE * stream, const struct printf_info *info, const void *const *args); static int _gst_info_printf_extension_segment (FILE * stream, const struct printf_info *info, const void *const *args); #ifdef HAVE_REGISTER_PRINTF_SPECIFIER static int _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n, int *argtypes, int *size); #else static int _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n, int *argtypes); #endif #endif struct _GstDebugMessage { gchar *message; const gchar *format; va_list arguments; }; /* list of all name/level pairs from --gst-debug and GST_DEBUG */ static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT; static GSList *__level_name = NULL; typedef struct { GPatternSpec *pat; GstDebugLevel level; } LevelNameEntry; /* list of all categories */ static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT; static GSList *__categories = NULL; /* all registered debug handlers */ typedef struct { GstLogFunction func; gpointer user_data; } LogFuncEntry; static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT; static GSList *__log_functions = NULL; #define PRETTY_TAGS_DEFAULT TRUE static gboolean pretty_tags = PRETTY_TAGS_DEFAULT; static volatile gint G_GNUC_MAY_ALIAS __default_level = GST_LEVEL_DEFAULT; static volatile gint G_GNUC_MAY_ALIAS __use_color = 1; static FILE *log_file; /* FIXME: export this? */ gboolean _priv_gst_in_valgrind (void) { static enum { GST_VG_UNCHECKED, GST_VG_NO_VALGRIND, GST_VG_INSIDE } in_valgrind = GST_VG_UNCHECKED; if (in_valgrind == GST_VG_UNCHECKED) { #ifdef HAVE_VALGRIND_VALGRIND_H if (RUNNING_ON_VALGRIND) { GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind"); printf ("GStreamer has detected that it is running inside valgrind.\n"); printf ("It might now take different code paths to ease debugging.\n"); printf ("Of course, this may also lead to different bugs.\n"); in_valgrind = GST_VG_INSIDE; } else { GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff"); in_valgrind = GST_VG_NO_VALGRIND; } #else in_valgrind = GST_VG_NO_VALGRIND; #endif g_assert (in_valgrind == GST_VG_NO_VALGRIND || in_valgrind == GST_VG_INSIDE); } return (in_valgrind == GST_VG_INSIDE); } /** * _gst_debug_init: * * Initializes the debugging system. * Normally you don't want to call this, because gst_init() does it for you. */ void _gst_debug_init (void) { const gchar *env; env = g_getenv ("GST_DEBUG_FILE"); if (env != NULL && *env != '\0') { if (strcmp (env, "-") == 0) { log_file = stdout; } else { log_file = g_fopen (env, "w"); if (log_file == NULL) { g_printerr ("Could not open log file '%s' for writing: %s\n", env, g_strerror (errno)); log_file = stderr; } } } else { log_file = stderr; } /* get time we started for debugging messages */ _priv_gst_info_start_time = gst_util_get_timestamp (); #ifdef HAVE_PRINTF_EXTENSION #ifdef HAVE_REGISTER_PRINTF_SPECIFIER register_printf_specifier (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr, _gst_info_printf_extension_arginfo); register_printf_specifier (GST_SEGMENT_FORMAT[0], _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo); #else register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr, _gst_info_printf_extension_arginfo); register_printf_function (GST_SEGMENT_FORMAT[0], _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo); #endif #endif /* do NOT use a single debug function before this line has been run */ GST_CAT_DEFAULT = _gst_debug_category_new ("default", GST_DEBUG_UNDERLINE, NULL); _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG", GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem"); gst_debug_add_log_function (gst_debug_log_default, NULL); /* FIXME: add descriptions here */ GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT", GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL); GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT", GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL); GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_STATES = _gst_debug_category_new ("GST_STATES", GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL); GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING", GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL); GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER", GST_DEBUG_BOLD | GST_DEBUG_BG_GREEN, NULL); GST_CAT_BUFFER_LIST = _gst_debug_category_new ("GST_BUFFER_LIST", GST_DEBUG_BOLD | GST_DEBUG_BG_GREEN, NULL); GST_CAT_BUS = _gst_debug_category_new ("GST_BUS", GST_DEBUG_BG_YELLOW, NULL); GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK", GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL); GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PADS = _gst_debug_category_new ("GST_PADS", GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_RED, NULL); GST_CAT_PERFORMANCE = _gst_debug_category_new ("GST_PERFORMANCE", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING", GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL); GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO", GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL); GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL); GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_XML = _gst_debug_category_new ("GST_XML", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING", GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_BLUE, NULL); GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM", GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL); GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_MESSAGE = _gst_debug_category_new ("GST_MESSAGE", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS", GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL); GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE", GST_DEBUG_BOLD, NULL); GST_CAT_SIGNAL = _gst_debug_category_new ("GST_SIGNAL", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PROBE = _gst_debug_category_new ("GST_PROBE", GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "pad probes"); GST_CAT_REGISTRY = _gst_debug_category_new ("GST_REGISTRY", 0, "registry"); GST_CAT_QOS = _gst_debug_category_new ("GST_QOS", 0, "QoS"); _priv_GST_CAT_POLL = _gst_debug_category_new ("GST_POLL", 0, "poll"); /* print out the valgrind message if we're in valgrind */ _priv_gst_in_valgrind (); env = g_getenv ("GST_DEBUG_OPTIONS"); if (env != NULL) { if (strstr (env, "full_tags") || strstr (env, "full-tags")) pretty_tags = FALSE; else if (strstr (env, "pretty_tags") || strstr (env, "pretty-tags")) pretty_tags = TRUE; } } /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */ #define GST_CAT_DEFAULT _GST_CAT_DEBUG /** * gst_debug_log2: * @category: category to log * @level: level of the message is in * @location: the file, function name, and line number of the location that * emitted the message * @object: the object this message relates to or NULL if none * @format: a printf style format string * @...: optional arguments for the format * * Logs the given message using the currently registered debugging handlers. */ void gst_debug_log2 (GstDebugCategory * category, GstDebugLevel level, const GstDebugTraceLocation * location, GObject * object, const gchar * format, ...) { va_list var_args; va_start (var_args, format); gst_debug_log_valist2 (category, level, location, object, format, var_args); va_end (var_args); } /** * gst_debug_log: * @category: category to log * @level: level of the message is in * @file: the file that emitted the message, usually the __FILE__ identifier * @function: the function that emitted the message * @line: the line from that the message was emitted, usually __LINE__ * @object: (transfer none) (allow-none): the object this message relates to, * or NULL if none * @format: a printf style format string * @...: optional arguments for the format * * Logs the given message using the currently registered debugging handlers. */ void gst_debug_log (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, const gchar * format, ...) { va_list var_args; va_start (var_args, format); gst_debug_log_valist (category, level, file, function, line, object, format, var_args); va_end (var_args); } #ifdef _MSC_VER /* based on g_basename(), which we can't use because it was deprecated */ static inline const gchar * gst_path_basename (const gchar * file_name) { register const gchar *base; base = strrchr (file_name, G_DIR_SEPARATOR); { const gchar *q = strrchr (file_name, '/'); if (base == NULL || (q != NULL && q > base)) base = q; } if (base) return base + 1; if (g_ascii_isalpha (file_name[0]) && file_name[1] == ':') return file_name + 2; return file_name; } #endif /** * gst_debug_log_valist: * @category: category to log * @level: level of the message is in * @file: the file that emitted the message, usually the __FILE__ identifier * @function: the function that emitted the message * @line: the line from that the message was emitted, usually __LINE__ * @object: (transfer none) (allow-none): the object this message relates to, * or NULL if none * @format: a printf style format string * @args: optional arguments for the format * * Logs the given message using the currently registered debugging handlers. */ void gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, const gchar * format, va_list args) { GstDebugTraceLocation location = { .file = file, .function = function, .line = line }; gst_debug_log_valist2 (category, level, &location, object, format, args); } /** * gst_debug_log_valist2: * @category: category to log * @level: level of the message is in * @location: the file, function name, and line number of the location that * emitted the message * @object: the object this message relates to or NULL if none * @format: a printf style format string * @args: optional arguments for the format * * Logs the given message using the currently registered debugging handlers. */ void gst_debug_log_valist2 (GstDebugCategory * category, GstDebugLevel level, const GstDebugTraceLocation * location, GObject * object, const gchar * format, va_list args) { GstDebugMessage message; LogFuncEntry *entry; GSList *handler; g_return_if_fail (category != NULL); g_return_if_fail (location != NULL); g_return_if_fail (location->file != NULL); g_return_if_fail (location->function != NULL); g_return_if_fail (format != NULL); /* The predefined macro __FILE__ is always the exact path given to the * compiler with MSVC, which may or may not be the basename. We work * around it at runtime to improve the readability. */ #ifdef _MSC_VER file = gst_path_basename (file); #endif message.message = NULL; message.format = format; G_VA_COPY (message.arguments, args); handler = __log_functions; while (handler) { entry = handler->data; handler = g_slist_next (handler); // TODO: change GstLogFunction and pass GstDebugTraceLocation ptr instead.. entry->func (category, level, location->file, location->function, location->line, object, &message, entry->user_data); } g_free (message.message); va_end (message.arguments); } /** * gst_debug_message_get: * @message: a debug message * * Gets the string representation of a #GstDebugMessage. This function is used * in debug handlers to extract the message. * * Returns: the string representation of a #GstDebugMessage. */ const gchar * gst_debug_message_get (GstDebugMessage * message) { if (message->message == NULL) { message->message = g_strdup_vprintf (message->format, message->arguments); } return message->message; } #define MAX_BUFFER_DUMP_STRING_LEN 100 /* structure_to_pretty_string: * @structure: a #GstStructure * * Converts @structure to a human-readable string representation. Basically * the same as gst_structure_to_string(), but if the structure contains large * buffers such as images the hex representation of those buffers will be * shortened so that the string remains readable. * * Returns: a newly-allocated string. g_free() when no longer needed. */ static gchar * structure_to_pretty_string (const GstStructure * s) { gchar *str, *pos, *end; str = gst_structure_to_string (s); if (str == NULL) return NULL; pos = str; while ((pos = strstr (pos, "(buffer)"))) { guint count = 0; pos += strlen ("(buffer)"); for (end = pos; *end != '\0' && *end != ';' && *end != ' '; ++end) ++count; if (count > MAX_BUFFER_DUMP_STRING_LEN) { memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 6, "..", 2); memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 4, pos + count - 4, 4); g_memmove (pos + MAX_BUFFER_DUMP_STRING_LEN, pos + count, strlen (pos + count) + 1); pos += MAX_BUFFER_DUMP_STRING_LEN; } } return str; } static inline gchar * gst_info_structure_to_string (GstStructure * s) { if (G_UNLIKELY (pretty_tags && s->name == GST_QUARK (TAGLIST))) return structure_to_pretty_string (s); else return gst_structure_to_string (s); } gchar * gst_debug_print_object (gpointer ptr) { GObject *object = (GObject *) ptr; #ifdef unused /* This is a cute trick to detect unmapped memory, but is unportable, * slow, screws around with madvise, and not actually that useful. */ { int ret; ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0); if (ret == -1 && errno == ENOMEM) { buffer = g_strdup_printf ("%p (unmapped memory)", ptr); } } #endif /* nicely printed object */ if (object == NULL) { return g_strdup ("(NULL)"); } if (*(GType *) ptr == GST_TYPE_CAPS) { return gst_caps_to_string ((GstCaps *) ptr); } if (*(GType *) ptr == GST_TYPE_STRUCTURE) { return gst_info_structure_to_string ((GstStructure *) ptr); } if (GST_IS_BUFFER (ptr)) { GstBuffer *buf = (GstBuffer *) ptr; gchar *caps, *ret; caps = gst_caps_to_string (GST_BUFFER_CAPS (buf)); ret = g_strdup_printf ("%p, data %p, malloc %p, ts %" GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT ", size %u, offset %" G_GUINT64_FORMAT ", offset_end %" G_GUINT64_FORMAT ", caps: %s", buf, GST_BUFFER_DATA (buf), GST_BUFFER_MALLOCDATA (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_SIZE (buf), GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf), caps); g_free (caps); return ret; } #ifdef USE_POISONING if (*(guint32 *) ptr == 0xffffffff) { return g_strdup_printf ("", ptr); } #endif if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) { return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object)); } if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) { return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object)); } if (G_IS_OBJECT (object)) { return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object); } if (GST_IS_MESSAGE (object)) { GstMessage *msg = GST_MESSAGE_CAST (object); gchar *s, *ret; if (msg->structure) { s = gst_info_structure_to_string (msg->structure); } else { s = g_strdup ("(NULL)"); } ret = g_strdup_printf ("%s message from element '%s': %s", GST_MESSAGE_TYPE_NAME (msg), (msg->src != NULL) ? GST_ELEMENT_NAME (msg->src) : "(NULL)", s); g_free (s); return ret; } if (GST_IS_QUERY (object)) { GstQuery *query = GST_QUERY_CAST (object); if (query->structure) { return gst_info_structure_to_string (query->structure); } else { const gchar *query_type_name; query_type_name = gst_query_type_get_name (query->type); if (G_LIKELY (query_type_name != NULL)) { return g_strdup_printf ("%s query", query_type_name); } else { return g_strdup_printf ("query of unknown type %d", query->type); } } } if (GST_IS_EVENT (object)) { GstEvent *event = GST_EVENT_CAST (object); gchar *s, *ret; if (event->structure) { s = gst_info_structure_to_string (event->structure); } else { s = g_strdup ("(NULL)"); } ret = g_strdup_printf ("%s event from '%s' at time %" GST_TIME_FORMAT ": %s", GST_EVENT_TYPE_NAME (event), (event->src != NULL) ? GST_OBJECT_NAME (event->src) : "(NULL)", GST_TIME_ARGS (event->timestamp), s); g_free (s); return ret; } return g_strdup_printf ("%p", ptr); } #ifdef HAVE_PRINTF_EXTENSION gchar * gst_debug_print_segment (gpointer ptr) { GstSegment *segment = (GstSegment *) ptr; /* nicely printed segment */ if (segment == NULL) { return g_strdup ("(NULL)"); } switch (segment->format) { case GST_FORMAT_UNDEFINED:{ return g_strdup_printf ("UNDEFINED segment"); } case GST_FORMAT_TIME:{ return g_strdup_printf ("time segment start=%" GST_TIME_FORMAT ", stop=%" GST_TIME_FORMAT ", last_stop=%" GST_TIME_FORMAT ", duration=%" GST_TIME_FORMAT ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" GST_TIME_FORMAT ", accum=%" GST_TIME_FORMAT, GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->stop), GST_TIME_ARGS (segment->last_stop), GST_TIME_ARGS (segment->duration), segment->rate, segment->applied_rate, (guint) segment->flags, GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->accum)); } default:{ const gchar *format_name; format_name = gst_format_get_name (segment->format); if (G_UNLIKELY (format_name == NULL)) format_name = "(UNKNOWN FORMAT)"; return g_strdup_printf ("%s segment start=%" G_GINT64_FORMAT ", stop=%" G_GINT64_FORMAT ", last_stop=%" G_GINT64_FORMAT ", duration=%" G_GINT64_FORMAT ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" GST_TIME_FORMAT ", accum=%" GST_TIME_FORMAT, format_name, segment->start, segment->stop, segment->last_stop, segment->duration, segment->rate, segment->applied_rate, (guint) segment->flags, GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->accum)); } } } #endif /* HAVE_PRINTF_EXTENSION */ /** * gst_debug_construct_term_color: * @colorinfo: the color info * * Constructs a string that can be used for getting the desired color in color * terminals. * You need to free the string after use. * * Returns: (transfer full) (type gchar*): a string containing the color * definition */ gchar * gst_debug_construct_term_color (guint colorinfo) { GString *color; color = g_string_new ("\033[00"); if (colorinfo & GST_DEBUG_BOLD) { g_string_append_len (color, ";01", 3); } if (colorinfo & GST_DEBUG_UNDERLINE) { g_string_append_len (color, ";04", 3); } if (colorinfo & GST_DEBUG_FG_MASK) { g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK); } if (colorinfo & GST_DEBUG_BG_MASK) { g_string_append_printf (color, ";4%1d", (colorinfo & GST_DEBUG_BG_MASK) >> 4); } g_string_append_c (color, 'm'); return g_string_free (color, FALSE); } /** * gst_debug_construct_win_color: * @colorinfo: the color info * * Constructs an integer that can be used for getting the desired color in * windows' terminals (cmd.exe). As there is no mean to underline, we simply * ignore this attribute. * * This function returns 0 on non-windows machines. * * Returns: an integer containing the color definition * * Since: 0.10.23 */ gint gst_debug_construct_win_color (guint colorinfo) { gint color = 0; #ifdef G_OS_WIN32 static const guchar ansi_to_win_fg[8] = { 0, /* black */ FOREGROUND_RED, /* red */ FOREGROUND_GREEN, /* green */ FOREGROUND_RED | FOREGROUND_GREEN, /* yellow */ FOREGROUND_BLUE, /* blue */ FOREGROUND_RED | FOREGROUND_BLUE, /* magenta */ FOREGROUND_GREEN | FOREGROUND_BLUE, /* cyan */ FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE /* white */ }; static const guchar ansi_to_win_bg[8] = { 0, BACKGROUND_RED, BACKGROUND_GREEN, BACKGROUND_RED | BACKGROUND_GREEN, BACKGROUND_BLUE, BACKGROUND_RED | BACKGROUND_BLUE, BACKGROUND_GREEN | FOREGROUND_BLUE, BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE }; /* we draw black as white, as cmd.exe can only have black bg */ if (colorinfo == 0) { return ansi_to_win_fg[7]; } if (colorinfo & GST_DEBUG_BOLD) { color |= FOREGROUND_INTENSITY; } if (colorinfo & GST_DEBUG_FG_MASK) { color |= ansi_to_win_fg[colorinfo & GST_DEBUG_FG_MASK]; } if (colorinfo & GST_DEBUG_BG_MASK) { color |= ansi_to_win_bg[(colorinfo & GST_DEBUG_BG_MASK) >> 4]; } #endif return color; } /* width of %p varies depending on actual value of pointer, which can make * output unevenly aligned if multiple threads are involved, hence the %14p * (should really be %18p, but %14p seems a good compromise between too many * white spaces and likely unalignment on my system) */ #if defined (GLIB_SIZEOF_VOID_P) && GLIB_SIZEOF_VOID_P == 8 #define PTR_FMT "%14p" #else #define PTR_FMT "%10p" #endif #define PID_FMT "%5d" #define CAT_FMT "%20s %s:%d:%s:%s" #ifdef G_OS_WIN32 static const guchar levelcolormap[GST_LEVEL_COUNT] = { /* GST_LEVEL_NONE */ FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE, /* GST_LEVEL_ERROR */ FOREGROUND_RED | FOREGROUND_INTENSITY, /* GST_LEVEL_WARNING */ FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY, /* GST_LEVEL_INFO */ FOREGROUND_GREEN | FOREGROUND_INTENSITY, /* GST_LEVEL_DEBUG */ FOREGROUND_GREEN | FOREGROUND_BLUE, /* GST_LEVEL_LOG */ FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE, /* GST_LEVEL_FIXME */ FOREGROUND_RED | FOREGROUND_GREEN, /* GST_LEVEL_TRACE */ FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE, /* placeholder for log level 8 */ 0, /* GST_LEVEL_MEMDUMP */ FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE }; static const guchar available_colors[] = { FOREGROUND_RED, FOREGROUND_GREEN, FOREGROUND_RED | FOREGROUND_GREEN, FOREGROUND_BLUE, FOREGROUND_RED | FOREGROUND_BLUE, FOREGROUND_GREEN | FOREGROUND_BLUE, }; #else static const gchar *levelcolormap[GST_LEVEL_COUNT] = { "\033[37m", /* GST_LEVEL_NONE */ "\033[31;01m", /* GST_LEVEL_ERROR */ "\033[33;01m", /* GST_LEVEL_WARNING */ "\033[32;01m", /* GST_LEVEL_INFO */ "\033[36m", /* GST_LEVEL_DEBUG */ "\033[37m", /* GST_LEVEL_LOG */ "\033[33;01m", /* GST_LEVEL_FIXME */ "\033[37m", /* GST_LEVEL_TRACE */ "\033[37m", /* placeholder for log level 8 */ "\033[37m" /* GST_LEVEL_MEMDUMP */ }; #endif /** * gst_debug_log_default: * @category: category to log * @level: level of the message * @file: the file that emitted the message, usually the __FILE__ identifier * @function: the function that emitted the message * @line: the line from that the message was emitted, usually __LINE__ * @message: the actual message * @object: (transfer none) (allow-none): the object this message relates to, * or NULL if none * @unused: an unused variable, reserved for some user_data. * * The default logging handler used by GStreamer. Logging functions get called * whenever a macro like GST_DEBUG or similar is used. This function outputs the * message and additional info to stderr (or the log file specified via the * GST_DEBUG_FILE environment variable). * * You can add other handlers by using gst_debug_add_log_function(). * And you can remove this handler by calling * gst_debug_remove_log_function(gst_debug_log_default); */ void gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, GstDebugMessage * message, gpointer unused) { gint pid; GstClockTime elapsed; gchar *obj = NULL; gboolean is_colored; if (level > gst_debug_category_get_threshold (category)) return; pid = getpid (); is_colored = gst_debug_is_colored (); if (object) { obj = gst_debug_print_object (object); } else { obj = g_strdup (""); } elapsed = GST_CLOCK_DIFF (_priv_gst_info_start_time, gst_util_get_timestamp ()); if (is_colored) { #ifndef G_OS_WIN32 /* colors, non-windows */ gchar *color = NULL; const gchar *clear; gchar pidcolor[10]; const gchar *levelcolor; color = gst_debug_construct_term_color (gst_debug_category_get_color (category)); clear = "\033[00m"; g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31); levelcolor = levelcolormap[level]; #define PRINT_FMT " %s"PID_FMT"%s "PTR_FMT" %s%s%s %s"CAT_FMT"%s %s\n" fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed), pidcolor, pid, clear, g_thread_self (), levelcolor, gst_debug_level_get_name (level), clear, color, gst_debug_category_get_name (category), file, line, function, obj, clear, gst_debug_message_get (message)); fflush (log_file); #undef PRINT_FMT g_free (color); #else /* colors, windows. We take a lock to keep colors and content together. * Maybe there is a better way but for now this will do the right * thing. */ static GStaticMutex win_print_mutex = G_STATIC_MUTEX_INIT; const gint clear = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; #define SET_COLOR(c) G_STMT_START { \ if (log_file == stderr) \ SetConsoleTextAttribute (GetStdHandle (STD_ERROR_HANDLE), (c)); \ } G_STMT_END g_static_mutex_lock (&win_print_mutex); /* timestamp */ fprintf (log_file, "%" GST_TIME_FORMAT " ", GST_TIME_ARGS (elapsed)); fflush (log_file); /* pid */ SET_COLOR (available_colors[pid % G_N_ELEMENTS (available_colors)]); fprintf (log_file, PID_FMT, pid); fflush (log_file); /* thread */ SET_COLOR (clear); fprintf (log_file, " " PTR_FMT " ", g_thread_self ()); fflush (log_file); /* level */ SET_COLOR (levelcolormap[level]); fprintf (log_file, "%s ", gst_debug_level_get_name (level)); fflush (log_file); /* category */ SET_COLOR (gst_debug_construct_win_color (gst_debug_category_get_color (category))); fprintf (log_file, CAT_FMT, gst_debug_category_get_name (category), file, line, function, obj); fflush (log_file); /* message */ SET_COLOR (clear); fprintf (log_file, " %s\n", gst_debug_message_get (message)); fflush (log_file); g_static_mutex_unlock (&win_print_mutex); #endif } else { /* no color, all platforms */ #define PRINT_FMT " "PID_FMT" "PTR_FMT" %s "CAT_FMT" %s\n" fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed), pid, g_thread_self (), gst_debug_level_get_name (level), gst_debug_category_get_name (category), file, line, function, obj, gst_debug_message_get (message)); fflush (log_file); #undef PRINT_FMT } g_free (obj); } /** * gst_debug_level_get_name: * @level: the level to get the name for * * Get the string representation of a debugging level * * Returns: the name */ const gchar * gst_debug_level_get_name (GstDebugLevel level) { switch (level) { case GST_LEVEL_NONE: return ""; case GST_LEVEL_ERROR: return "ERROR "; case GST_LEVEL_WARNING: return "WARN "; case GST_LEVEL_INFO: return "INFO "; case GST_LEVEL_DEBUG: return "DEBUG "; case GST_LEVEL_LOG: return "LOG "; case GST_LEVEL_FIXME: return "FIXME "; case GST_LEVEL_TRACE: return "TRACE "; case GST_LEVEL_MEMDUMP: return "MEMDUMP"; default: g_warning ("invalid level specified for gst_debug_level_get_name"); return ""; } } /** * gst_debug_add_log_function: * @func: the function to use * @data: (closure): user data * * Adds the logging function to the list of logging functions. * Be sure to use #G_GNUC_NO_INSTRUMENT on that function, it is needed. */ void gst_debug_add_log_function (GstLogFunction func, gpointer data) { LogFuncEntry *entry; GSList *list; if (func == NULL) func = gst_debug_log_default; entry = g_slice_new (LogFuncEntry); entry->func = func; entry->user_data = data; /* FIXME: we leak the old list here - other threads might access it right now * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv, * but that is waaay costly. * It'd probably be clever to use some kind of RCU here, but I don't know * anything about that. */ g_static_mutex_lock (&__log_func_mutex); list = g_slist_copy (__log_functions); __log_functions = g_slist_prepend (list, entry); g_static_mutex_unlock (&__log_func_mutex); GST_DEBUG ("prepended log function %p (user data %p) to log functions", func, data); } static gint gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func) { gpointer entryfunc = (gpointer) (((LogFuncEntry *) entry)->func); return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0; } static gint gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data) { gpointer entrydata = ((LogFuncEntry *) entry)->user_data; return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0; } static guint gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data) { GSList *found; GSList *new; guint removals = 0; g_static_mutex_lock (&__log_func_mutex); new = __log_functions; while ((found = g_slist_find_custom (new, data, func))) { if (new == __log_functions) { /* make a copy when we have the first hit, so that we modify the copy and * make that the new list later */ new = g_slist_copy (new); continue; } g_slice_free (LogFuncEntry, found->data); new = g_slist_delete_link (new, found); removals++; } /* FIXME: We leak the old list here. See _add_log_function for why. */ __log_functions = new; g_static_mutex_unlock (&__log_func_mutex); return removals; } /** * gst_debug_remove_log_function: * @func: the log function to remove * * Removes all registered instances of the given logging functions. * * Returns: How many instances of the function were removed */ guint gst_debug_remove_log_function (GstLogFunction func) { guint removals; if (func == NULL) func = gst_debug_log_default; removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_func, (gpointer) func); GST_DEBUG ("removed log function %p %d times from log function list", func, removals); return removals; } /** * gst_debug_remove_log_function_by_data: * @data: user data of the log function to remove * * Removes all registered instances of log functions with the given user data. * * Returns: How many instances of the function were removed */ guint gst_debug_remove_log_function_by_data (gpointer data) { guint removals; removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_data, data); GST_DEBUG ("removed %d log functions with user data %p from log function list", removals, data); return removals; } /** * gst_debug_set_colored: * @colored: Whether to use colored output or not * * Sets or unsets the use of coloured debugging output. * * This function may be called before gst_init(). */ void gst_debug_set_colored (gboolean colored) { g_atomic_int_set (&__use_color, (gint) colored); } /** * gst_debug_is_colored: * * Checks if the debugging output should be colored. * * Returns: TRUE, if the debug output should be colored. */ gboolean gst_debug_is_colored (void) { return (gboolean) g_atomic_int_get (&__use_color); } /** * gst_debug_set_active: * @active: Whether to use debugging output or not * * If activated, debugging messages are sent to the debugging * handlers. * It makes sense to deactivate it for speed issues. * This function is not threadsafe. It makes sense to only call it * during initialization. */ void gst_debug_set_active (gboolean active) { __gst_debug_enabled = active; if (active) __gst_debug_min = GST_LEVEL_COUNT; else __gst_debug_min = GST_LEVEL_NONE; } /** * gst_debug_is_active: * * Checks if debugging output is activated. * * Returns: TRUE, if debugging is activated */ gboolean gst_debug_is_active (void) { return __gst_debug_enabled; } /** * gst_debug_set_default_threshold: * @level: level to set * * Sets the default threshold to the given level and updates all categories to * use this threshold. * * This function may be called before gst_init(). */ void gst_debug_set_default_threshold (GstDebugLevel level) { g_atomic_int_set (&__default_level, level); gst_debug_reset_all_thresholds (); } /** * gst_debug_get_default_threshold: * * Returns the default threshold that is used for new categories. * * Returns: the default threshold level */ GstDebugLevel gst_debug_get_default_threshold (void) { return (GstDebugLevel) g_atomic_int_get (&__default_level); } static void gst_debug_reset_threshold (gpointer category, gpointer unused) { GstDebugCategory *cat = (GstDebugCategory *) category; GSList *walk; g_static_mutex_lock (&__level_name_mutex); walk = __level_name; while (walk) { LevelNameEntry *entry = walk->data; walk = g_slist_next (walk); if (g_pattern_match_string (entry->pat, cat->name)) { GST_LOG ("category %s matches pattern %p - gets set to level %d", cat->name, entry->pat, entry->level); gst_debug_category_set_threshold (cat, entry->level); goto exit; } } gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ()); exit: g_static_mutex_unlock (&__level_name_mutex); } static void gst_debug_reset_all_thresholds (void) { g_static_mutex_lock (&__cat_mutex); g_slist_foreach (__categories, gst_debug_reset_threshold, NULL); g_static_mutex_unlock (&__cat_mutex); } static void for_each_threshold_by_entry (gpointer data, gpointer user_data) { GstDebugCategory *cat = (GstDebugCategory *) data; LevelNameEntry *entry = (LevelNameEntry *) user_data; if (g_pattern_match_string (entry->pat, cat->name)) { GST_LOG ("category %s matches pattern %p - gets set to level %d", cat->name, entry->pat, entry->level); gst_debug_category_set_threshold (cat, entry->level); } } /** * gst_debug_set_threshold_for_name: * @name: name of the categories to set * @level: level to set them to * * Sets all categories which match the given glob style pattern to the given * level. */ void gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level) { GPatternSpec *pat; LevelNameEntry *entry; g_return_if_fail (name != NULL); pat = g_pattern_spec_new (name); entry = g_slice_new (LevelNameEntry); entry->pat = pat; entry->level = level; g_static_mutex_lock (&__level_name_mutex); __level_name = g_slist_prepend (__level_name, entry); g_static_mutex_unlock (&__level_name_mutex); g_static_mutex_lock (&__cat_mutex); g_slist_foreach (__categories, for_each_threshold_by_entry, entry); g_static_mutex_unlock (&__cat_mutex); } /** * gst_debug_unset_threshold_for_name: * @name: name of the categories to set * * Resets all categories with the given name back to the default level. */ void gst_debug_unset_threshold_for_name (const gchar * name) { GSList *walk; GPatternSpec *pat; g_return_if_fail (name != NULL); pat = g_pattern_spec_new (name); g_static_mutex_lock (&__level_name_mutex); walk = __level_name; /* improve this if you want, it's mighty slow */ while (walk) { LevelNameEntry *entry = walk->data; if (g_pattern_spec_equal (entry->pat, pat)) { __level_name = g_slist_remove_link (__level_name, walk); g_pattern_spec_free (entry->pat); g_slice_free (LevelNameEntry, entry); g_slist_free_1 (walk); walk = __level_name; } } g_static_mutex_unlock (&__level_name_mutex); g_pattern_spec_free (pat); gst_debug_reset_all_thresholds (); } GstDebugCategory * _gst_debug_category_new (const gchar * name, guint color, const gchar * description) { GstDebugCategory *cat; g_return_val_if_fail (name != NULL, NULL); cat = g_slice_new (GstDebugCategory); cat->name = g_strdup (name); cat->color = color; if (description != NULL) { cat->description = g_strdup (description); } else { cat->description = g_strdup ("no description"); } g_atomic_int_set (&cat->threshold, 0); gst_debug_reset_threshold (cat, NULL); /* add to category list */ g_static_mutex_lock (&__cat_mutex); __categories = g_slist_prepend (__categories, cat); g_static_mutex_unlock (&__cat_mutex); return cat; } /** * gst_debug_category_free: * @category: #GstDebugCategory to free. * * Removes and frees the category and all associated resources. */ void gst_debug_category_free (GstDebugCategory * category) { if (category == NULL) return; /* remove from category list */ g_static_mutex_lock (&__cat_mutex); __categories = g_slist_remove (__categories, category); g_static_mutex_unlock (&__cat_mutex); g_free ((gpointer) category->name); g_free ((gpointer) category->description); g_slice_free (GstDebugCategory, category); } /** * gst_debug_category_set_threshold: * @category: a #GstDebugCategory to set threshold of. * @level: the #GstDebugLevel threshold to set. * * Sets the threshold of the category to the given level. Debug information will * only be output if the threshold is lower or equal to the level of the * debugging message. * * Do not use this function in production code, because other functions may * change the threshold of categories as side effect. It is however a nice * function to use when debugging (even from gdb). * */ void gst_debug_category_set_threshold (GstDebugCategory * category, GstDebugLevel level) { g_return_if_fail (category != NULL); if (level > __gst_debug_min) { __gst_debug_enabled = TRUE; __gst_debug_min = level; } g_atomic_int_set (&category->threshold, level); } /** * gst_debug_category_reset_threshold: * @category: a #GstDebugCategory to reset threshold of. * * Resets the threshold of the category to the default level. Debug information * will only be output if the threshold is lower or equal to the level of the * debugging message. * Use this function to set the threshold back to where it was after using * gst_debug_category_set_threshold(). */ void gst_debug_category_reset_threshold (GstDebugCategory * category) { gst_debug_reset_threshold (category, NULL); } /** * gst_debug_category_get_threshold: * @category: a #GstDebugCategory to get threshold of. * * Returns the threshold of a #GstDebugCategory. * * Returns: the #GstDebugLevel that is used as threshold. */ GstDebugLevel gst_debug_category_get_threshold (GstDebugCategory * category) { return (GstDebugLevel) g_atomic_int_get (&category->threshold); } /** * gst_debug_category_get_name: * @category: a #GstDebugCategory to get name of. * * Returns the name of a debug category. * * Returns: the name of the category. */ const gchar * gst_debug_category_get_name (GstDebugCategory * category) { return category->name; } /** * gst_debug_category_get_color: * @category: a #GstDebugCategory to get the color of. * * Returns the color of a debug category used when printing output in this * category. * * Returns: the color of the category. */ guint gst_debug_category_get_color (GstDebugCategory * category) { return category->color; } /** * gst_debug_category_get_description: * @category: a #GstDebugCategory to get the description of. * * Returns the description of a debug category. * * Returns: the description of the category. */ const gchar * gst_debug_category_get_description (GstDebugCategory * category) { return category->description; } /** * gst_debug_get_all_categories: * * Returns a snapshot of a all categories that are currently in use . This list * may change anytime. * The caller has to free the list after use. * * Returns: (transfer container) (element-type Gst.DebugCategory): the list of * debug categories */ GSList * gst_debug_get_all_categories (void) { GSList *ret; g_static_mutex_lock (&__cat_mutex); ret = g_slist_copy (__categories); g_static_mutex_unlock (&__cat_mutex); return ret; } GstDebugCategory * _gst_debug_get_category (const gchar * name) { GstDebugCategory *ret = NULL; GSList *node; for (node = __categories; node; node = g_slist_next (node)) { ret = (GstDebugCategory *) node->data; if (!strcmp (name, ret->name)) { return ret; } } return NULL; } /*** FUNCTION POINTERS ********************************************************/ static GHashTable *__gst_function_pointers; /* NULL */ static GStaticMutex __dbg_functions_mutex = G_STATIC_MUTEX_INIT; /* This function MUST NOT return NULL */ const gchar * _gst_debug_nameof_funcptr (GstDebugFuncPtr func) { gchar *ptrname; #ifdef HAVE_DLADDR Dl_info dl_info; #endif if (G_UNLIKELY (func == NULL)) return "(NULL)"; g_static_mutex_lock (&__dbg_functions_mutex); if (G_LIKELY (__gst_function_pointers)) { ptrname = g_hash_table_lookup (__gst_function_pointers, (gpointer) func); g_static_mutex_unlock (&__dbg_functions_mutex); if (G_LIKELY (ptrname)) return ptrname; } else { g_static_mutex_unlock (&__dbg_functions_mutex); } /* we need to create an entry in the hash table for this one so we don't leak * the name */ #ifdef HAVE_DLADDR if (dladdr ((gpointer) func, &dl_info) && dl_info.dli_sname) { gchar *name = g_strdup (dl_info.dli_sname); _gst_debug_register_funcptr (func, name); return name; } else #endif { gchar *name = g_strdup_printf ("%p", (gpointer) func); _gst_debug_register_funcptr (func, name); return name; } } void _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname) { gpointer ptr = (gpointer) func; g_static_mutex_lock (&__dbg_functions_mutex); if (!__gst_function_pointers) __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal); if (!g_hash_table_lookup (__gst_function_pointers, ptr)) g_hash_table_insert (__gst_function_pointers, ptr, (gpointer) ptrname); g_static_mutex_unlock (&__dbg_functions_mutex); } /*** PRINTF EXTENSIONS ********************************************************/ #ifdef HAVE_PRINTF_EXTENSION static int _gst_info_printf_extension_ptr (FILE * stream, const struct printf_info *info, const void *const *args) { char *buffer; int len; void *ptr; buffer = NULL; ptr = *(void **) args[0]; buffer = gst_debug_print_object (ptr); len = fprintf (stream, "%*s", (info->left ? -info->width : info->width), buffer); g_free (buffer); return len; } static int _gst_info_printf_extension_segment (FILE * stream, const struct printf_info *info, const void *const *args) { char *buffer; int len; void *ptr; buffer = NULL; ptr = *(void **) args[0]; buffer = gst_debug_print_segment (ptr); len = fprintf (stream, "%*s", (info->left ? -info->width : info->width), buffer); g_free (buffer); return len; } #ifdef HAVE_REGISTER_PRINTF_SPECIFIER static int _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n, int *argtypes, int *size) #else static int _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n, int *argtypes) #endif { if (n > 0) { argtypes[0] = PA_POINTER; #ifdef HAVE_REGISTER_PRINTF_SPECIFIER *size = sizeof (gpointer); #endif } return 1; } #endif /* HAVE_PRINTF_EXTENSION */ static void gst_info_dump_mem_line (gchar * linebuf, gsize linebuf_size, const guint8 * mem, gsize mem_offset, gsize mem_size) { gchar hexstr[50], ascstr[18], digitstr[4]; if (mem_size > 16) mem_size = 16; hexstr[0] = '\0'; ascstr[0] = '\0'; if (mem != NULL) { guint i = 0; mem += mem_offset; while (i < mem_size) { ascstr[i] = (g_ascii_isprint (mem[i])) ? mem[i] : '.'; g_snprintf (digitstr, sizeof (digitstr), "%02x ", mem[i]); g_strlcat (hexstr, digitstr, sizeof (hexstr)); ++i; } ascstr[i] = '\0'; } g_snprintf (linebuf, linebuf_size, "%08x: %-48.48s %-16.16s", (guint) mem_offset, hexstr, ascstr); } void _gst_debug_dump_mem (GstDebugCategory * cat, const gchar * file, const gchar * func, gint line, GObject * obj, const gchar * msg, const guint8 * data, guint length) { guint off = 0; gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "--------" "-------------------------------------------------------------------"); if (msg != NULL && *msg != '\0') { gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "%s", msg); } while (off < length) { gchar buf[128]; /* gst_info_dump_mem_line will process 16 bytes at most */ gst_info_dump_mem_line (buf, sizeof (buf), data, off, length - off); gst_debug_log (cat, GST_LEVEL_MEMDUMP, file, func, line, obj, "%s", buf); off += 16; } gst_debug_log ((cat), GST_LEVEL_MEMDUMP, file, func, line, obj, "--------" "-------------------------------------------------------------------"); } #else /* !GST_DISABLE_GST_DEBUG */ #ifndef GST_REMOVE_DISABLED GstDebugCategory * _gst_debug_category_new (const gchar * name, guint color, const gchar * description) { return NULL; } void _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname) { } /* This function MUST NOT return NULL */ const gchar * _gst_debug_nameof_funcptr (GstDebugFuncPtr func) { return "(NULL)"; } void gst_debug_log (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, const gchar * format, ...) { } void gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, const gchar * format, va_list args) { } const gchar * gst_debug_message_get (GstDebugMessage * message) { return ""; } void gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, GstDebugMessage * message, gpointer unused) { } const gchar * gst_debug_level_get_name (GstDebugLevel level) { return "NONE"; } void gst_debug_add_log_function (GstLogFunction func, gpointer data) { } guint gst_debug_remove_log_function (GstLogFunction func) { return 0; } guint gst_debug_remove_log_function_by_data (gpointer data) { return 0; } void gst_debug_set_active (gboolean active) { } gboolean gst_debug_is_active (void) { return FALSE; } void gst_debug_set_colored (gboolean colored) { } gboolean gst_debug_is_colored (void) { return FALSE; } void gst_debug_set_default_threshold (GstDebugLevel level) { } GstDebugLevel gst_debug_get_default_threshold (void) { return GST_LEVEL_NONE; } void gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level) { } void gst_debug_unset_threshold_for_name (const gchar * name) { } void gst_debug_category_free (GstDebugCategory * category) { } void gst_debug_category_set_threshold (GstDebugCategory * category, GstDebugLevel level) { } void gst_debug_category_reset_threshold (GstDebugCategory * category) { } GstDebugLevel gst_debug_category_get_threshold (GstDebugCategory * category) { return GST_LEVEL_NONE; } const gchar * gst_debug_category_get_name (GstDebugCategory * category) { return ""; } guint gst_debug_category_get_color (GstDebugCategory * category) { return 0; } const gchar * gst_debug_category_get_description (GstDebugCategory * category) { return ""; } GSList * gst_debug_get_all_categories (void) { return NULL; } GstDebugCategory * _gst_debug_get_category (const gchar * name) { return NULL; } gchar * gst_debug_construct_term_color (guint colorinfo) { return g_strdup ("00"); } gint gst_debug_construct_win_color (guint colorinfo) { return 0; } gboolean _priv_gst_in_valgrind (void) { return FALSE; } void _gst_debug_dump_mem (GstDebugCategory * cat, const gchar * file, const gchar * func, gint line, GObject * obj, const gchar * msg, const guint8 * data, guint length) { } #endif /* GST_REMOVE_DISABLED */ #endif /* GST_DISABLE_GST_DEBUG */ #ifdef GST_ENABLE_FUNC_INSTRUMENTATION /* FIXME make this thread specific */ static GSList *stack_trace = NULL; void __cyg_profile_func_enter (void *this_fn, void *call_site) G_GNUC_NO_INSTRUMENT; void __cyg_profile_func_enter (void *this_fn, void *call_site) { gchar *name = _gst_debug_nameof_funcptr (this_fn); gchar *site = _gst_debug_nameof_funcptr (call_site); GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name, site); stack_trace = g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)", this_fn, name, call_site, site)); g_free (name); g_free (site); } void __cyg_profile_func_exit (void *this_fn, void *call_site) G_GNUC_NO_INSTRUMENT; void __cyg_profile_func_exit (void *this_fn, void *call_site) { gchar *name = _gst_debug_nameof_funcptr (this_fn); GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name); g_free (stack_trace->data); stack_trace = g_slist_delete_link (stack_trace, stack_trace); g_free (name); } /** * gst_debug_print_stack_trace: * * If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktrace is available for * gstreamer code, which can be printed with this function. */ void gst_debug_print_stack_trace (void) { GSList *walk = stack_trace; gint count = 0; if (walk) walk = g_slist_next (walk); while (walk) { gchar *name = (gchar *) walk->data; g_print ("#%-2d %s\n", count++, name); walk = g_slist_next (walk); } } #else void gst_debug_print_stack_trace (void) { /* nothing because it's compiled out */ } #endif /* GST_ENABLE_FUNC_INSTRUMENTATION */