/* 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:gstinfo * @title: GstInfo * @short_description: Debugging and logging facilities * @see_also: #gst-running 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) * #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 #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" #include "gstvalue.h" #include "gstcapsfeatures.h" #ifdef HAVE_VALGRIND_VALGRIND_H # include #endif #include /* g_sprintf */ /* our own printf implementation with custom extensions to %p for caps etc. */ #include "printf/printf.h" #include "printf/printf-extension.h" static char *gst_info_printf_pointer_extension_func (const char *format, void *ptr); #else /* GST_DISABLE_GST_DEBUG */ #include #endif /* !GST_DISABLE_GST_DEBUG */ #ifdef HAVE_UNWIND /* No need for remote debugging so turn on the 'local only' optimizations in * libunwind */ #define UNW_LOCAL_ONLY #include #include #include #include #include #include #include #ifdef HAVE_DW #include static Dwfl *_global_dwfl = NULL; static GMutex _dwfl_mutex; #define GST_DWFL_LOCK() g_mutex_lock(&_dwfl_mutex); #define GST_DWFL_UNLOCK() g_mutex_unlock(&_dwfl_mutex); static Dwfl * get_global_dwfl (void) { if (g_once_init_enter (&_global_dwfl)) { static Dwfl_Callbacks callbacks = { .find_elf = dwfl_linux_proc_find_elf, .find_debuginfo = dwfl_standard_find_debuginfo, }; Dwfl *_dwfl = dwfl_begin (&callbacks); g_mutex_init (&_dwfl_mutex); g_once_init_leave (&_global_dwfl, _dwfl); } return _global_dwfl; } #endif /* HAVE_DW */ #endif /* HAVE_UNWIND */ #ifdef HAVE_BACKTRACE #include #define BT_BUF_SIZE 100 #endif /* HAVE_BACKTRACE */ #ifdef HAVE_DBGHELP #include #include #include #include #endif /* HAVE_DBGHELP */ #ifdef G_OS_WIN32 /* We take a lock in order to * 1) keep colors and content together for a single line * 2) serialise gst_print*() and gst_printerr*() with each other and the debug * log to keep the debug log colouring from interfering with those and * to prevent broken output on the windows terminal. * Maybe there is a better way but for now this will do the right * thing. */ G_LOCK_DEFINE_STATIC (win_print_mutex); #endif extern gboolean gst_is_initialized (void); /* 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_MEMORY = 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_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; GstDebugCategory *GST_CAT_META = NULL; GstDebugCategory *GST_CAT_LOCKING = NULL; GstDebugCategory *GST_CAT_CONTEXT = NULL; GstDebugCategory *_priv_GST_CAT_PROTECTION = 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); #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); struct _GstDebugMessage { gchar *message; const gchar *format; va_list arguments; }; /* list of all name/level pairs from --gst-debug and GST_DEBUG */ static GMutex __level_name_mutex; static GSList *__level_name = NULL; typedef struct { GPatternSpec *pat; GstDebugLevel level; } LevelNameEntry; /* list of all categories */ static GMutex __cat_mutex; static GSList *__categories = NULL; static GstDebugCategory *_gst_debug_get_category_locked (const gchar * name); /* all registered debug handlers */ typedef struct { GstLogFunction func; gpointer user_data; GDestroyNotify notify; } LogFuncEntry; static GMutex __log_func_mutex; static GSList *__log_functions = NULL; /* whether to add the default log function in gst_init() */ static gboolean add_default_log_func = TRUE; #define PRETTY_TAGS_DEFAULT TRUE static gboolean pretty_tags = PRETTY_TAGS_DEFAULT; static gint G_GNUC_MAY_ALIAS __default_level = GST_LEVEL_DEFAULT; static gint G_GNUC_MAY_ALIAS __use_color = GST_DEBUG_COLOR_MODE_ON; static gchar * _replace_pattern_in_gst_debug_file_name (gchar * name, const char *token, guint val) { gchar *token_start; if ((token_start = strstr (name, token))) { gsize token_len = strlen (token); gchar *name_prefix = name; gchar *name_suffix = token_start + token_len; token_start[0] = '\0'; name = g_strdup_printf ("%s%u%s", name_prefix, val, name_suffix); g_free (name_prefix); } return name; } static gchar * _priv_gst_debug_file_name (const gchar * env) { gchar *name; name = g_strdup (env); name = _replace_pattern_in_gst_debug_file_name (name, "%p", getpid ()); name = _replace_pattern_in_gst_debug_file_name (name, "%r", g_random_int ()); return name; } /* Initialize the debugging system */ void _priv_gst_debug_init (void) { const gchar *env; FILE *log_file; if (add_default_log_func) { env = g_getenv ("GST_DEBUG_FILE"); if (env != NULL && *env != '\0') { if (strcmp (env, "-") == 0) { log_file = stdout; } else { gchar *name = _priv_gst_debug_file_name (env); log_file = g_fopen (name, "w"); g_free (name); 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; } gst_debug_add_log_function (gst_debug_log_default, log_file, NULL); } __gst_printf_pointer_extension_set_func (gst_info_printf_pointer_extension_func); /* 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"); /* FIXME: add descriptions here */ GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT", GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL); GST_CAT_MEMORY = _gst_debug_category_new ("GST_MEMORY", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, "memory"); 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_BLUE, 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_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"); GST_CAT_META = _gst_debug_category_new ("GST_META", 0, "meta"); GST_CAT_LOCKING = _gst_debug_category_new ("GST_LOCKING", 0, "locking"); GST_CAT_CONTEXT = _gst_debug_category_new ("GST_CONTEXT", 0, NULL); _priv_GST_CAT_PROTECTION = _gst_debug_category_new ("GST_PROTECTION", 0, "protection"); 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; } if (g_getenv ("GST_DEBUG_NO_COLOR") != NULL) gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_OFF); env = g_getenv ("GST_DEBUG_COLOR_MODE"); if (env) gst_debug_set_color_mode_from_string (env); env = g_getenv ("GST_DEBUG"); if (env) gst_debug_set_threshold_from_string (env, FALSE); } /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */ #define GST_CAT_DEFAULT _GST_CAT_DEBUG /** * 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); } /* 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; } /** * 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) { GstDebugMessage message; LogFuncEntry *entry; GSList *handler; g_return_if_fail (category != NULL); #ifdef GST_ENABLE_EXTRA_CHECKS g_warn_if_fail (object == NULL || G_IS_OBJECT (object)); #endif if (level > gst_debug_category_get_threshold (category)) return; g_return_if_fail (file != NULL); g_return_if_fail (function != NULL); g_return_if_fail (format != NULL); 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); entry->func (category, level, file, function, 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: (nullable): the string representation of a #GstDebugMessage. */ const gchar * gst_debug_message_get (GstDebugMessage * message) { if (message->message == NULL) { int len; len = __gst_vasprintf (&message->message, message->format, message->arguments); if (len < 0) message->message = NULL; } return message->message; } #define MAX_BUFFER_DUMP_STRING_LEN 100 /* structure_to_pretty_string: * @str: a serialized #GstStructure * * If the serialized structure contains large buffers such as images the hex * representation of those buffers will be shortened so that the string remains * readable. * * Returns: the filtered string */ static gchar * prettify_structure_string (gchar * str) { gchar *pos = str, *end; 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); 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 (const GstStructure * s) { if (G_LIKELY (s)) { gchar *str = gst_structure_to_string (s); if (G_UNLIKELY (pretty_tags && s->name == GST_QUARK (TAGLIST))) return prettify_structure_string (str); else return str; } return NULL; } static inline gchar * gst_info_describe_buffer (GstBuffer * buffer) { const gchar *offset_str = "none"; const gchar *offset_end_str = "none"; gchar offset_buf[32], offset_end_buf[32]; if (GST_BUFFER_OFFSET_IS_VALID (buffer)) { g_snprintf (offset_buf, sizeof (offset_buf), "%" G_GUINT64_FORMAT, GST_BUFFER_OFFSET (buffer)); offset_str = offset_buf; } if (GST_BUFFER_OFFSET_END_IS_VALID (buffer)) { g_snprintf (offset_end_buf, sizeof (offset_end_buf), "%" G_GUINT64_FORMAT, GST_BUFFER_OFFSET_END (buffer)); offset_end_str = offset_end_buf; } return g_strdup_printf ("buffer: %p, pts %" GST_TIME_FORMAT ", dts %" GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT ", offset %s, offset_end %s, flags 0x%x", buffer, GST_TIME_ARGS (GST_BUFFER_PTS (buffer)), GST_TIME_ARGS (GST_BUFFER_DTS (buffer)), GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)), gst_buffer_get_size (buffer), offset_str, offset_end_str, GST_BUFFER_FLAGS (buffer)); } static inline gchar * gst_info_describe_buffer_list (GstBufferList * list) { GstClockTime pts = GST_CLOCK_TIME_NONE; GstClockTime dts = GST_CLOCK_TIME_NONE; gsize total_size = 0; guint n, i; n = gst_buffer_list_length (list); for (i = 0; i < n; ++i) { GstBuffer *buf = gst_buffer_list_get (list, i); if (i == 0) { pts = GST_BUFFER_PTS (buf); dts = GST_BUFFER_DTS (buf); } total_size += gst_buffer_get_size (buf); } return g_strdup_printf ("bufferlist: %p, %u buffers, pts %" GST_TIME_FORMAT ", dts %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT, list, n, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts), total_size); } static inline gchar * gst_info_describe_event (GstEvent * event) { gchar *s, *ret; s = gst_info_structure_to_string (gst_event_get_structure (event)); ret = g_strdup_printf ("%s event: %p, time %" GST_TIME_FORMAT ", seq-num %d, %s", GST_EVENT_TYPE_NAME (event), event, GST_TIME_ARGS (GST_EVENT_TIMESTAMP (event)), GST_EVENT_SEQNUM (event), (s ? s : "(NULL)")); g_free (s); return ret; } static inline gchar * gst_info_describe_message (GstMessage * message) { gchar *s, *ret; s = gst_info_structure_to_string (gst_message_get_structure (message)); ret = g_strdup_printf ("%s message: %p, time %" GST_TIME_FORMAT ", seq-num %d, element '%s', %s", GST_MESSAGE_TYPE_NAME (message), message, GST_TIME_ARGS (GST_MESSAGE_TIMESTAMP (message)), GST_MESSAGE_SEQNUM (message), ((message->src) ? GST_ELEMENT_NAME (message->src) : "(NULL)"), (s ? s : "(NULL)")); g_free (s); return ret; } static inline gchar * gst_info_describe_query (GstQuery * query) { gchar *s, *ret; s = gst_info_structure_to_string (gst_query_get_structure (query)); ret = g_strdup_printf ("%s query: %p, %s", GST_QUERY_TYPE_NAME (query), query, (s ? s : "(NULL)")); g_free (s); return ret; } static inline gchar * gst_info_describe_stream (GstStream * stream) { gchar *ret, *caps_str = NULL, *tags_str = NULL; GstCaps *caps; GstTagList *tags; caps = gst_stream_get_caps (stream); if (caps) { caps_str = gst_caps_to_string (caps); gst_caps_unref (caps); } tags = gst_stream_get_tags (stream); if (tags) { tags_str = gst_tag_list_to_string (tags); gst_tag_list_unref (tags); } ret = g_strdup_printf ("stream %s %p, ID %s, flags 0x%x, caps [%s], tags [%s]", gst_stream_type_get_name (gst_stream_get_stream_type (stream)), stream, gst_stream_get_stream_id (stream), gst_stream_get_stream_flags (stream), caps_str ? caps_str : "", tags_str ? tags_str : ""); g_free (caps_str); g_free (tags_str); return ret; } static inline gchar * gst_info_describe_stream_collection (GstStreamCollection * collection) { gchar *ret; GString *streams_str; guint i; streams_str = g_string_new ("<"); for (i = 0; i < gst_stream_collection_get_size (collection); i++) { GstStream *stream = gst_stream_collection_get_stream (collection, i); gchar *s; s = gst_info_describe_stream (stream); g_string_append_printf (streams_str, " %s,", s); g_free (s); } g_string_append (streams_str, " >"); ret = g_strdup_printf ("collection %p (%d streams) %s", collection, gst_stream_collection_get_size (collection), streams_str->str); g_string_free (streams_str, TRUE); return ret; } static 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 (GST_IS_CAPS (ptr)) { return gst_caps_to_string ((const GstCaps *) ptr); } if (GST_IS_STRUCTURE (ptr)) { return gst_info_structure_to_string ((const GstStructure *) ptr); } if (*(GType *) ptr == GST_TYPE_CAPS_FEATURES) { return gst_caps_features_to_string ((const GstCapsFeatures *) ptr); } if (GST_IS_TAG_LIST (ptr)) { gchar *str = gst_tag_list_to_string ((GstTagList *) ptr); if (G_UNLIKELY (pretty_tags)) return prettify_structure_string (str); else return str; } if (*(GType *) ptr == GST_TYPE_DATE_TIME) { return __gst_date_time_serialize ((GstDateTime *) ptr, TRUE); } if (GST_IS_BUFFER (ptr)) { return gst_info_describe_buffer (GST_BUFFER_CAST (ptr)); } if (GST_IS_BUFFER_LIST (ptr)) { return gst_info_describe_buffer_list (GST_BUFFER_LIST_CAST (ptr)); } #ifdef USE_POISONING if (*(guint32 *) ptr == 0xffffffff) { return g_strdup_printf ("", ptr); } #endif if (GST_IS_MESSAGE (object)) { return gst_info_describe_message (GST_MESSAGE_CAST (object)); } if (GST_IS_QUERY (object)) { return gst_info_describe_query (GST_QUERY_CAST (object)); } if (GST_IS_EVENT (object)) { return gst_info_describe_event (GST_EVENT_CAST (object)); } if (GST_IS_CONTEXT (object)) { GstContext *context = GST_CONTEXT_CAST (object); gchar *s, *ret; const gchar *type; const GstStructure *structure; type = gst_context_get_context_type (context); structure = gst_context_get_structure (context); s = gst_info_structure_to_string (structure); ret = g_strdup_printf ("context '%s'='%s'", type, s); g_free (s); return ret; } if (GST_IS_STREAM (object)) { return gst_info_describe_stream (GST_STREAM_CAST (object)); } if (GST_IS_STREAM_COLLECTION (object)) { return gst_info_describe_stream_collection (GST_STREAM_COLLECTION_CAST (object)); } 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); } return g_strdup_printf ("%p", ptr); } static 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 ", offset=%" GST_TIME_FORMAT ", stop=%" GST_TIME_FORMAT ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" GST_TIME_FORMAT ", base=%" GST_TIME_FORMAT ", position %" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT, GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->offset), GST_TIME_ARGS (segment->stop), segment->rate, segment->applied_rate, (guint) segment->flags, GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->base), GST_TIME_ARGS (segment->position), GST_TIME_ARGS (segment->duration)); } 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 ", offset=%" G_GINT64_FORMAT ", stop=%" G_GINT64_FORMAT ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" G_GINT64_FORMAT ", base=%" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT ", duration %" G_GINT64_FORMAT, format_name, segment->start, segment->offset, segment->stop, segment->rate, segment->applied_rate, (guint) segment->flags, segment->time, segment->base, segment->position, segment->duration); } } } static char * gst_info_printf_pointer_extension_func (const char *format, void *ptr) { char *s = NULL; if (format[0] == 'p' && format[1] == '\a') { switch (format[2]) { case 'A': /* GST_PTR_FORMAT */ s = gst_debug_print_object (ptr); break; case 'B': /* GST_SEGMENT_FORMAT */ s = gst_debug_print_segment (ptr); break; case 'T': /* GST_TIMEP_FORMAT */ if (ptr) s = g_strdup_printf ("%" GST_TIME_FORMAT, GST_TIME_ARGS (*(GstClockTime *) ptr)); break; case 'S': /* GST_STIMEP_FORMAT */ if (ptr) s = g_strdup_printf ("%" GST_STIME_FORMAT, GST_STIME_ARGS (*(gint64 *) ptr)); break; case 'a': /* GST_WRAPPED_PTR_FORMAT */ s = priv_gst_string_take_and_wrap (gst_debug_print_object (ptr)); break; default: /* must have been compiled against a newer version with an extension * we don't known about yet - just ignore and fallback to %p below */ break; } } if (s == NULL) s = g_strdup_printf ("%p", ptr); return s; } /** * 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 */ 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 & (GST_DEBUG_FG_MASK | GST_DEBUG_BG_MASK)) == 0) { color = ansi_to_win_fg[7]; } if (colorinfo & GST_DEBUG_UNDERLINE) { color |= BACKGROUND_INTENSITY; } 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" #define NOCOLOR_PRINT_FMT " "PID_FMT" "PTR_FMT" %s "CAT_FMT" %s\n" #ifdef G_OS_WIN32 static const guchar levelcolormap_w32[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, }; #endif /* G_OS_WIN32 */ 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 */ }; static void _gst_debug_log_preamble (GstDebugMessage * message, GObject * object, const gchar ** file, const gchar ** message_str, gchar ** obj_str, GstClockTime * elapsed) { gchar c; /* Get message string first because printing it might call into our custom * printf format extension mechanism which in turn might log something, e.g. * from inside gst_structure_to_string() when something can't be serialised. * This means we either need to do this outside of any critical section or * use a recursive lock instead. As we always need the message string in all * code paths, we might just as well get it here first thing and outside of * the win_print_mutex critical section. */ *message_str = gst_debug_message_get (message); /* __FILE__ might be a file name or an absolute path or a * relative path, irrespective of the exact compiler used, * in which case we want to shorten it to the filename for * readability. */ c = (*file)[0]; if (c == '.' || c == '/' || c == '\\' || (c != '\0' && (*file)[1] == ':')) { *file = gst_path_basename (*file); } if (object) { *obj_str = gst_debug_print_object (object); } else { *obj_str = (gchar *) ""; } *elapsed = GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ()); } /** * gst_debug_log_get_line: * @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__ * @object: (transfer none) (allow-none): the object this message relates to, * or %NULL if none * @message: the actual message * * Returns the string representation for the specified debug log message * formatted in the same way as gst_debug_log_default() (the default handler), * without color. The purpose is to make it easy for custom log output * handlers to get a log output that is identical to what the default handler * would write out. * * Since: 1.18 */ gchar * gst_debug_log_get_line (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, GstDebugMessage * message) { GstClockTime elapsed; gchar *ret, *obj_str = NULL; const gchar *message_str; #ifdef GST_ENABLE_EXTRA_CHECKS g_warn_if_fail (object == NULL || G_IS_OBJECT (object)); #endif _gst_debug_log_preamble (message, object, &file, &message_str, &obj_str, &elapsed); ret = g_strdup_printf ("%" GST_TIME_FORMAT NOCOLOR_PRINT_FMT, GST_TIME_ARGS (elapsed), getpid (), g_thread_self (), gst_debug_level_get_name (level), gst_debug_category_get_name (category), file, line, function, obj_str, message_str); if (object != NULL) g_free (obj_str); return ret; } #ifdef G_OS_WIN32 static void _gst_debug_fprintf (FILE * file, const gchar * format, ...) { va_list args; gchar *str = NULL; gint length; va_start (args, format); length = gst_info_vasprintf (&str, format, args); va_end (args); if (length == 0 || !str) return; /* Even if it's valid UTF-8 string, console might print broken string * depending on codepage and the content of the given string. * Fortunately, g_print* family will take care of the Windows' codepage * specific behavior. */ if (file == stderr) { g_printerr ("%s", str); } else if (file == stdout) { g_print ("%s", str); } else { /* We are writing to file. Text editors/viewers should be able to * decode valid UTF-8 string regardless of codepage setting */ fwrite (str, 1, length, file); /* FIXME: fflush here might be redundant if setvbuf works as expected */ fflush (file); } g_free (str); } #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 * @user_data: the FILE* to log to * * The default logging handler used by GStreamer. Logging functions get called * whenever a macro like GST_DEBUG or similar is used. By default this function * is setup to output the message and additional info to stderr (or the log file * specified via the GST_DEBUG_FILE environment variable) as received via * @user_data. * * 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 user_data) { gint pid; GstClockTime elapsed; gchar *obj = NULL; GstDebugColorMode color_mode; const gchar *message_str; FILE *log_file = user_data ? user_data : stderr; #ifdef G_OS_WIN32 #define FPRINTF_DEBUG _gst_debug_fprintf /* _gst_debug_fprintf will do fflush if it's required */ #define FFLUSH_DEBUG(f) ((void)(f)) #else #define FPRINTF_DEBUG fprintf #define FFLUSH_DEBUG(f) G_STMT_START { \ fflush (f); \ } G_STMT_END #endif #ifdef GST_ENABLE_EXTRA_CHECKS g_warn_if_fail (object == NULL || G_IS_OBJECT (object)); #endif _gst_debug_log_preamble (message, object, &file, &message_str, &obj, &elapsed); pid = getpid (); color_mode = gst_debug_get_color_mode (); if (color_mode != GST_DEBUG_COLOR_MODE_OFF) { #ifdef G_OS_WIN32 G_LOCK (win_print_mutex); if (color_mode == GST_DEBUG_COLOR_MODE_UNIX) { #endif /* 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[%02dm", 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_DEBUG (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, message_str); FFLUSH_DEBUG (log_file); #undef PRINT_FMT g_free (color); #ifdef G_OS_WIN32 } else { /* colors, windows. */ 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 /* timestamp */ FPRINTF_DEBUG (log_file, "%" GST_TIME_FORMAT " ", GST_TIME_ARGS (elapsed)); /* pid */ SET_COLOR (available_colors[pid % G_N_ELEMENTS (available_colors)]); FPRINTF_DEBUG (log_file, PID_FMT, pid); /* thread */ SET_COLOR (clear); FPRINTF_DEBUG (log_file, " " PTR_FMT " ", g_thread_self ()); /* level */ SET_COLOR (levelcolormap_w32[level]); FPRINTF_DEBUG (log_file, "%s ", gst_debug_level_get_name (level)); /* category */ SET_COLOR (gst_debug_construct_win_color (gst_debug_category_get_color (category))); FPRINTF_DEBUG (log_file, CAT_FMT, gst_debug_category_get_name (category), file, line, function, obj); /* message */ SET_COLOR (clear); FPRINTF_DEBUG (log_file, " %s\n", message_str); } G_UNLOCK (win_print_mutex); #endif } else { /* no color, all platforms */ FPRINTF_DEBUG (log_file, "%" GST_TIME_FORMAT NOCOLOR_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, message_str); FFLUSH_DEBUG (log_file); } if (object != NULL) 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 * @user_data: user data * @notify: called when @user_data is not used anymore * * 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 user_data, GDestroyNotify notify) { LogFuncEntry *entry; GSList *list; if (func == NULL) func = gst_debug_log_default; entry = g_slice_new (LogFuncEntry); entry->func = func; entry->user_data = user_data; entry->notify = notify; /* 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_mutex_lock (&__log_func_mutex); list = g_slist_copy (__log_functions); __log_functions = g_slist_prepend (list, entry); g_mutex_unlock (&__log_func_mutex); if (gst_is_initialized ()) GST_DEBUG ("prepended log function %p (user data %p) to log functions", func, user_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, *cleanup = NULL; guint removals = 0; g_mutex_lock (&__log_func_mutex); new = __log_functions; cleanup = NULL; 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; } cleanup = g_slist_prepend (cleanup, 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_mutex_unlock (&__log_func_mutex); while (cleanup) { LogFuncEntry *entry = cleanup->data; if (entry->notify) entry->notify (entry->user_data); g_slice_free (LogFuncEntry, entry); cleanup = g_slist_delete_link (cleanup, cleanup); } return removals; } /** * gst_debug_remove_log_function: * @func: (scope call) (allow-none): the log function to remove, or %NULL to * remove the default log function * * 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); if (gst_is_initialized ()) { GST_DEBUG ("removed log function %p %d times from log function list", func, removals); } else { /* If the default log function is removed before gst_init() was called, * set a flag so we don't add it in gst_init() later */ if (func == gst_debug_log_default) { add_default_log_func = FALSE; ++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); if (gst_is_initialized ()) 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. * Same as gst_debug_set_color_mode () with the argument being * being GST_DEBUG_COLOR_MODE_ON or GST_DEBUG_COLOR_MODE_OFF. * * This function may be called before gst_init(). */ void gst_debug_set_colored (gboolean colored) { GstDebugColorMode new_mode; new_mode = colored ? GST_DEBUG_COLOR_MODE_ON : GST_DEBUG_COLOR_MODE_OFF; g_atomic_int_set (&__use_color, (gint) new_mode); } /** * gst_debug_set_color_mode: * @mode: The coloring mode for debug output. See @GstDebugColorMode. * * Changes the coloring mode for debug output. * * This function may be called before gst_init(). * * Since: 1.2 */ void gst_debug_set_color_mode (GstDebugColorMode mode) { g_atomic_int_set (&__use_color, mode); } /** * gst_debug_set_color_mode_from_string: * @mode: The coloring mode for debug output. One of the following: * "on", "auto", "off", "disable", "unix". * * Changes the coloring mode for debug output. * * This function may be called before gst_init(). * * Since: 1.2 */ void gst_debug_set_color_mode_from_string (const gchar * mode) { if ((strcmp (mode, "on") == 0) || (strcmp (mode, "auto") == 0)) gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_ON); else if ((strcmp (mode, "off") == 0) || (strcmp (mode, "disable") == 0)) gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_OFF); else if (strcmp (mode, "unix") == 0) gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_UNIX); } /** * 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) { GstDebugColorMode mode = g_atomic_int_get (&__use_color); return (mode == GST_DEBUG_COLOR_MODE_UNIX || mode == GST_DEBUG_COLOR_MODE_ON); } /** * gst_debug_get_color_mode: * * Changes the coloring mode for debug output. * * Returns: see @GstDebugColorMode for possible values. * * Since: 1.2 */ GstDebugColorMode gst_debug_get_color_mode (void) { return 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 gboolean gst_debug_apply_entry (GstDebugCategory * cat, LevelNameEntry * entry) { if (!g_pattern_match_string (entry->pat, cat->name)) return FALSE; if (gst_is_initialized ()) 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); return TRUE; } static void gst_debug_reset_threshold (gpointer category, gpointer unused) { GstDebugCategory *cat = (GstDebugCategory *) category; GSList *walk; g_mutex_lock (&__level_name_mutex); for (walk = __level_name; walk != NULL; walk = walk->next) { if (gst_debug_apply_entry (cat, walk->data)) break; } g_mutex_unlock (&__level_name_mutex); if (walk == NULL) gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ()); } static void gst_debug_reset_all_thresholds (void) { g_mutex_lock (&__cat_mutex); g_slist_foreach (__categories, gst_debug_reset_threshold, NULL); g_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; gst_debug_apply_entry (cat, entry); } /** * 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_mutex_lock (&__level_name_mutex); __level_name = g_slist_prepend (__level_name, entry); g_mutex_unlock (&__level_name_mutex); g_mutex_lock (&__cat_mutex); g_slist_foreach (__categories, for_each_threshold_by_entry, entry); g_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_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; } else { walk = g_slist_next (walk); } } g_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, *catfound; 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_mutex_lock (&__cat_mutex); catfound = _gst_debug_get_category_locked (name); if (catfound) { g_free ((gpointer) cat->name); g_free ((gpointer) cat->description); g_slice_free (GstDebugCategory, cat); cat = catfound; } else { __categories = g_slist_prepend (__categories, cat); } g_mutex_unlock (&__cat_mutex); return cat; } #ifndef GST_REMOVE_DEPRECATED /** * gst_debug_category_free: * @category: #GstDebugCategory to free. * * Removes and frees the category and all associated resources. * * Deprecated: This function can easily cause memory corruption, don't use it. */ void gst_debug_category_free (GstDebugCategory * category) { } #endif /** * 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_mutex_lock (&__cat_mutex); ret = g_slist_copy (__categories); g_mutex_unlock (&__cat_mutex); return ret; } static GstDebugCategory * _gst_debug_get_category_locked (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; } GstDebugCategory * _gst_debug_get_category (const gchar * name) { GstDebugCategory *ret; g_mutex_lock (&__cat_mutex); ret = _gst_debug_get_category_locked (name); g_mutex_unlock (&__cat_mutex); return ret; } static gboolean parse_debug_category (gchar * str, const gchar ** category) { if (!str) return FALSE; /* works in place */ g_strstrip (str); if (str[0] != '\0') { *category = str; return TRUE; } return FALSE; } static gboolean parse_debug_level (gchar * str, GstDebugLevel * level) { if (!str) return FALSE; /* works in place */ g_strstrip (str); if (g_ascii_isdigit (str[0])) { unsigned long l; char *endptr; l = strtoul (str, &endptr, 10); if (endptr > str && endptr[0] == 0) { *level = (GstDebugLevel) l; } else { return FALSE; } } else if (strcmp (str, "ERROR") == 0) { *level = GST_LEVEL_ERROR; } else if (strncmp (str, "WARN", 4) == 0) { *level = GST_LEVEL_WARNING; } else if (strcmp (str, "FIXME") == 0) { *level = GST_LEVEL_FIXME; } else if (strcmp (str, "INFO") == 0) { *level = GST_LEVEL_INFO; } else if (strcmp (str, "DEBUG") == 0) { *level = GST_LEVEL_DEBUG; } else if (strcmp (str, "LOG") == 0) { *level = GST_LEVEL_LOG; } else if (strcmp (str, "TRACE") == 0) { *level = GST_LEVEL_TRACE; } else if (strcmp (str, "MEMDUMP") == 0) { *level = GST_LEVEL_MEMDUMP; } else return FALSE; return TRUE; } /** * gst_debug_set_threshold_from_string: * @list: comma-separated list of "category:level" pairs to be used * as debug logging levels * @reset: %TRUE to clear all previously-set debug levels before setting * new thresholds * %FALSE if adding the threshold described by @list to the one already set. * * Sets the debug logging wanted in the same form as with the GST_DEBUG * environment variable. You can use wildcards such as '*', but note that * the order matters when you use wild cards, e.g. "foosrc:6,*src:3,*:2" sets * everything to log level 2. * * Since: 1.2 */ void gst_debug_set_threshold_from_string (const gchar * list, gboolean reset) { gchar **split; gchar **walk; g_assert (list); if (reset) gst_debug_set_default_threshold (GST_LEVEL_DEFAULT); split = g_strsplit (list, ",", 0); for (walk = split; *walk; walk++) { if (strchr (*walk, ':')) { gchar **values = g_strsplit (*walk, ":", 2); if (values[0] && values[1]) { GstDebugLevel level; const gchar *category; if (parse_debug_category (values[0], &category) && parse_debug_level (values[1], &level)) { gst_debug_set_threshold_for_name (category, level); /* bump min-level anyway to allow the category to be registered in the * future still */ if (level > _gst_debug_min) { _gst_debug_min = level; } } } g_strfreev (values); } else { GstDebugLevel level; if (parse_debug_level (*walk, &level)) gst_debug_set_default_threshold (level); } } g_strfreev (split); } /*** FUNCTION POINTERS ********************************************************/ static GHashTable *__gst_function_pointers; /* NULL */ static GMutex __dbg_functions_mutex; /* 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_mutex_lock (&__dbg_functions_mutex); if (G_LIKELY (__gst_function_pointers)) { ptrname = g_hash_table_lookup (__gst_function_pointers, (gpointer) func); g_mutex_unlock (&__dbg_functions_mutex); if (G_LIKELY (ptrname)) return ptrname; } else { g_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) { const gchar *name = g_intern_string (dl_info.dli_sname); _gst_debug_register_funcptr (func, name); return name; } else #endif { gchar *name = g_strdup_printf ("%p", (gpointer) func); const gchar *iname = g_intern_string (name); g_free (name); _gst_debug_register_funcptr (func, iname); return iname; } } void _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname) { gpointer ptr = (gpointer) func; g_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_mutex_unlock (&__dbg_functions_mutex); } void _priv_gst_debug_cleanup (void) { g_mutex_lock (&__dbg_functions_mutex); if (__gst_function_pointers) { g_hash_table_unref (__gst_function_pointers); __gst_function_pointers = NULL; } g_mutex_unlock (&__dbg_functions_mutex); g_mutex_lock (&__cat_mutex); while (__categories) { GstDebugCategory *cat = __categories->data; g_free ((gpointer) cat->name); g_free ((gpointer) cat->description); g_slice_free (GstDebugCategory, cat); __categories = g_slist_delete_link (__categories, __categories); } g_mutex_unlock (&__cat_mutex); g_mutex_lock (&__level_name_mutex); while (__level_name) { LevelNameEntry *level_name_entry = __level_name->data; g_pattern_spec_free (level_name_entry->pat); g_slice_free (LevelNameEntry, level_name_entry); __level_name = g_slist_delete_link (__level_name, __level_name); } g_mutex_unlock (&__level_name_mutex); g_mutex_lock (&__log_func_mutex); while (__log_functions) { LogFuncEntry *log_func_entry = __log_functions->data; if (log_func_entry->notify) log_func_entry->notify (log_func_entry->user_data); g_slice_free (LogFuncEntry, log_func_entry); __log_functions = g_slist_delete_link (__log_functions, __log_functions); } g_mutex_unlock (&__log_func_mutex); } 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 _priv_gst_debug_cleanup (void) { } 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 user_data, GDestroyNotify notify) { if (notify) notify (user_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) { } void gst_debug_set_color_mode (GstDebugColorMode mode) { } void gst_debug_set_color_mode_from_string (const gchar * str) { } gboolean gst_debug_is_colored (void) { return FALSE; } GstDebugColorMode gst_debug_get_color_mode (void) { return GST_DEBUG_COLOR_MODE_OFF; } void gst_debug_set_threshold_from_string (const gchar * list, gboolean reset) { } 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) { } #ifndef GST_REMOVE_DEPRECATED void gst_debug_category_free (GstDebugCategory * category) { } #endif 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; } 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 */ /* Need this for _gst_element_error_printf even if GST_REMOVE_DISABLED is set: * fallback function that cleans up the format string and replaces all pointer * extension formats with plain %p. */ #ifdef GST_DISABLE_GST_DEBUG int __gst_info_fallback_vasprintf (char **result, char const *format, va_list args) { gchar *clean_format, *c; gsize len; if (format == NULL) return -1; clean_format = g_strdup (format); c = clean_format; while ((c = strstr (c, "%p\a"))) { if (c[3] < 'A' || c[3] > 'Z') { c += 3; continue; } len = strlen (c + 4); memmove (c + 2, c + 4, len + 1); c += 2; } while ((c = strstr (clean_format, "%P"))) /* old GST_PTR_FORMAT */ c[1] = 'p'; while ((c = strstr (clean_format, "%Q"))) /* old GST_SEGMENT_FORMAT */ c[1] = 'p'; len = g_vasprintf (result, clean_format, args); g_free (clean_format); if (*result == NULL) return -1; return len; } #endif /** * gst_info_vasprintf: * @result: (out): the resulting string * @format: a printf style format string * @args: the va_list of printf arguments for @format * * Allocates and fills a string large enough (including the terminating null * byte) to hold the specified printf style @format and @args. * * This function deals with the GStreamer specific printf specifiers * #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. If you do not have these specifiers * in your @format string, you do not need to use this function and can use * alternatives such as g_vasprintf(). * * Free @result with g_free(). * * Returns: the length of the string allocated into @result or -1 on any error * * Since: 1.8 */ gint gst_info_vasprintf (gchar ** result, const gchar * format, va_list args) { /* This will fallback to __gst_info_fallback_vasprintf() via a #define in * gst_private.h if the debug system is disabled which will remove the gst * specific printf format specifiers */ return __gst_vasprintf (result, format, args); } /** * gst_info_strdup_vprintf: * @format: a printf style format string * @args: the va_list of printf arguments for @format * * Allocates, fills and returns a null terminated string from the printf style * @format string and @args. * * See gst_info_vasprintf() for when this function is required. * * Free with g_free(). * * Returns: (nullable): a newly allocated null terminated string or %NULL on any error * * Since: 1.8 */ gchar * gst_info_strdup_vprintf (const gchar * format, va_list args) { gchar *ret; if (gst_info_vasprintf (&ret, format, args) < 0) ret = NULL; return ret; } /** * gst_info_strdup_printf: * @format: a printf style format string * @...: the printf arguments for @format * * Allocates, fills and returns a 0-terminated string from the printf style * @format string and corresponding arguments. * * See gst_info_vasprintf() for when this function is required. * * Free with g_free(). * * Returns: (nullable): a newly allocated null terminated string or %NULL on any error * * Since: 1.8 */ gchar * gst_info_strdup_printf (const gchar * format, ...) { gchar *ret; va_list args; va_start (args, format); ret = gst_info_strdup_vprintf (format, args); va_end (args); return ret; } /** * gst_print: * @format: a printf style format string * @...: the printf arguments for @format * * Outputs a formatted message via the GLib print handler. The default print * handler simply outputs the message to stdout. * * This function will not append a new-line character at the end, unlike * gst_println() which will. * * All strings must be in ASCII or UTF-8 encoding. * * This function differs from g_print() in that it supports all the additional * printf specifiers that are supported by GStreamer's debug logging system, * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. * * This function is primarily for printing debug output. * * Since: 1.12 */ void gst_print (const gchar * format, ...) { va_list args; gchar *str; va_start (args, format); str = gst_info_strdup_vprintf (format, args); va_end (args); #ifdef G_OS_WIN32 G_LOCK (win_print_mutex); #endif g_print ("%s", str); #ifdef G_OS_WIN32 G_UNLOCK (win_print_mutex); #endif g_free (str); } /** * gst_println: * @format: a printf style format string * @...: the printf arguments for @format * * Outputs a formatted message via the GLib print handler. The default print * handler simply outputs the message to stdout. * * This function will append a new-line character at the end, unlike * gst_print() which will not. * * All strings must be in ASCII or UTF-8 encoding. * * This function differs from g_print() in that it supports all the additional * printf specifiers that are supported by GStreamer's debug logging system, * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. * * This function is primarily for printing debug output. * * Since: 1.12 */ void gst_println (const gchar * format, ...) { va_list args; gchar *str; va_start (args, format); str = gst_info_strdup_vprintf (format, args); va_end (args); #ifdef G_OS_WIN32 G_LOCK (win_print_mutex); #endif g_print ("%s\n", str); #ifdef G_OS_WIN32 G_UNLOCK (win_print_mutex); #endif g_free (str); } /** * gst_printerr: * @format: a printf style format string * @...: the printf arguments for @format * * Outputs a formatted message via the GLib error message handler. The default * handler simply outputs the message to stderr. * * This function will not append a new-line character at the end, unlike * gst_printerrln() which will. * * All strings must be in ASCII or UTF-8 encoding. * * This function differs from g_printerr() in that it supports the additional * printf specifiers that are supported by GStreamer's debug logging system, * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. * * This function is primarily for printing debug output. * * Since: 1.12 */ void gst_printerr (const gchar * format, ...) { va_list args; gchar *str; va_start (args, format); str = gst_info_strdup_vprintf (format, args); va_end (args); #ifdef G_OS_WIN32 G_LOCK (win_print_mutex); #endif g_printerr ("%s", str); #ifdef G_OS_WIN32 G_UNLOCK (win_print_mutex); #endif g_free (str); } /** * gst_printerrln: * @format: a printf style format string * @...: the printf arguments for @format * * Outputs a formatted message via the GLib error message handler. The default * handler simply outputs the message to stderr. * * This function will append a new-line character at the end, unlike * gst_printerr() which will not. * * All strings must be in ASCII or UTF-8 encoding. * * This function differs from g_printerr() in that it supports the additional * printf specifiers that are supported by GStreamer's debug logging system, * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. * * This function is primarily for printing debug output. * * Since: 1.12 */ void gst_printerrln (const gchar * format, ...) { va_list args; gchar *str; va_start (args, format); str = gst_info_strdup_vprintf (format, args); va_end (args); #ifdef G_OS_WIN32 G_LOCK (win_print_mutex); #endif g_printerr ("%s\n", str); #ifdef G_OS_WIN32 G_UNLOCK (win_print_mutex); #endif g_free (str); } #ifdef HAVE_UNWIND #ifdef HAVE_DW static gboolean append_debug_info (GString * trace, Dwfl * dwfl, const void *ip) { Dwfl_Line *line; Dwarf_Addr addr; Dwfl_Module *module; const gchar *function_name; addr = (uintptr_t) ip; module = dwfl_addrmodule (dwfl, addr); function_name = dwfl_module_addrname (module, addr); g_string_append_printf (trace, "%s (", function_name ? function_name : "??"); line = dwfl_getsrc (dwfl, addr); if (line != NULL) { gint nline; Dwarf_Addr addr; const gchar *filename = dwfl_lineinfo (line, &addr, &nline, NULL, NULL, NULL); g_string_append_printf (trace, "%s:%d", strrchr (filename, G_DIR_SEPARATOR) + 1, nline); } else { const gchar *eflfile = NULL; dwfl_module_info (module, NULL, NULL, NULL, NULL, NULL, &eflfile, NULL); g_string_append_printf (trace, "%s:%p", eflfile ? eflfile : "??", ip); } return TRUE; } #endif /* HAVE_DW */ static gchar * generate_unwind_trace (GstStackTraceFlags flags) { gint unret; unw_context_t uc; unw_cursor_t cursor; gboolean use_libunwind = TRUE; GString *trace = g_string_new (NULL); #ifdef HAVE_DW Dwfl *dwfl = NULL; if ((flags & GST_STACK_TRACE_SHOW_FULL)) { dwfl = get_global_dwfl (); if (G_UNLIKELY (dwfl == NULL)) { GST_WARNING ("Failed to initialize dwlf"); goto done; } GST_DWFL_LOCK (); } #endif /* HAVE_DW */ unret = unw_getcontext (&uc); if (unret) { GST_DEBUG ("Could not get libunwind context (%d)", unret); goto done; } unret = unw_init_local (&cursor, &uc); if (unret) { GST_DEBUG ("Could not init libunwind context (%d)", unret); goto done; } #ifdef HAVE_DW /* Due to plugins being loaded, mapping of process might have changed, * so always scan it. */ if (dwfl_linux_proc_report (dwfl, getpid ()) != 0) goto done; #endif while (unw_step (&cursor) > 0) { #ifdef HAVE_DW if (dwfl) { unw_word_t ip; unret = unw_get_reg (&cursor, UNW_REG_IP, &ip); if (unret) { GST_DEBUG ("libunwind could not read frame info (%d)", unret); goto done; } if (append_debug_info (trace, dwfl, (void *) (ip - 4))) { use_libunwind = FALSE; g_string_append (trace, ")\n"); } } #endif /* HAVE_DW */ if (use_libunwind) { char name[32]; unw_word_t offset = 0; unw_get_proc_name (&cursor, name, sizeof (name), &offset); g_string_append_printf (trace, "%s (0x%" G_GSIZE_FORMAT ")\n", name, (gsize) offset); } } done: #ifdef HAVE_DW if (dwfl) GST_DWFL_UNLOCK (); #endif return g_string_free (trace, FALSE); } #endif /* HAVE_UNWIND */ #ifdef HAVE_BACKTRACE static gchar * generate_backtrace_trace (void) { int j, nptrs; void *buffer[BT_BUF_SIZE]; char **strings; GString *trace; trace = g_string_new (NULL); nptrs = backtrace (buffer, BT_BUF_SIZE); strings = backtrace_symbols (buffer, nptrs); if (!strings) return NULL; for (j = 0; j < nptrs; j++) g_string_append_printf (trace, "%s\n", strings[j]); free (strings); return g_string_free (trace, FALSE); } #else #define generate_backtrace_trace() NULL #endif /* HAVE_BACKTRACE */ #ifdef HAVE_DBGHELP /* *INDENT-OFF* */ static struct { DWORD (WINAPI * pSymSetOptions) (DWORD SymOptions); BOOL (WINAPI * pSymInitialize) (HANDLE hProcess, PCSTR UserSearchPath, BOOL fInvadeProcess); BOOL (WINAPI * pStackWalk64) (DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME64 StackFrame, PVOID ContextRecord, PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine, PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress); PVOID (WINAPI * pSymFunctionTableAccess64) (HANDLE hProcess, DWORD64 AddrBase); DWORD64 (WINAPI * pSymGetModuleBase64) (HANDLE hProcess, DWORD64 qwAddr); BOOL (WINAPI * pSymFromAddr) (HANDLE hProcess, DWORD64 Address, PDWORD64 Displacement, PSYMBOL_INFO Symbol); BOOL (WINAPI * pSymGetModuleInfo64) (HANDLE hProcess, DWORD64 qwAddr, PIMAGEHLP_MODULE64 ModuleInfo); BOOL (WINAPI * pSymGetLineFromAddr64) (HANDLE hProcess, DWORD64 qwAddr, PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line64); } dbg_help_vtable = { NULL,}; /* *INDENT-ON* */ static GModule *dbg_help_module = NULL; static gboolean dbghelp_load_symbol (const gchar * symbol_name, gpointer * symbol) { if (dbg_help_module && !g_module_symbol (dbg_help_module, symbol_name, symbol)) { GST_WARNING ("Cannot load %s symbol", symbol_name); g_module_close (dbg_help_module); dbg_help_module = NULL; } return ! !dbg_help_module; } static gboolean dbghelp_initialize_symbols (HANDLE process) { static gsize initialization_value = 0; if (g_once_init_enter (&initialization_value)) { GST_INFO ("Initializing Windows symbol handler"); dbg_help_module = g_module_open ("dbghelp.dll", G_MODULE_BIND_LAZY); dbghelp_load_symbol ("SymSetOptions", (gpointer *) & dbg_help_vtable.pSymSetOptions); dbghelp_load_symbol ("SymInitialize", (gpointer *) & dbg_help_vtable.pSymInitialize); dbghelp_load_symbol ("StackWalk64", (gpointer *) & dbg_help_vtable.pStackWalk64); dbghelp_load_symbol ("SymFunctionTableAccess64", (gpointer *) & dbg_help_vtable.pSymFunctionTableAccess64); dbghelp_load_symbol ("SymGetModuleBase64", (gpointer *) & dbg_help_vtable.pSymGetModuleBase64); dbghelp_load_symbol ("SymFromAddr", (gpointer *) & dbg_help_vtable.pSymFromAddr); dbghelp_load_symbol ("SymGetModuleInfo64", (gpointer *) & dbg_help_vtable.pSymGetModuleInfo64); dbghelp_load_symbol ("SymGetLineFromAddr64", (gpointer *) & dbg_help_vtable.pSymGetLineFromAddr64); if (dbg_help_module) { dbg_help_vtable.pSymSetOptions (SYMOPT_LOAD_LINES); dbg_help_vtable.pSymInitialize (process, NULL, TRUE); GST_INFO ("Initialized Windows symbol handler"); } g_once_init_leave (&initialization_value, 1); } return ! !dbg_help_module; } static gchar * generate_dbghelp_trace (void) { HANDLE process = GetCurrentProcess (); HANDLE thread = GetCurrentThread (); IMAGEHLP_MODULE64 module_info; DWORD machine; CONTEXT context; STACKFRAME64 frame = { 0 }; PVOID save_context; GString *trace = NULL; if (!dbghelp_initialize_symbols (process)) return NULL; memset (&context, 0, sizeof (CONTEXT)); context.ContextFlags = CONTEXT_FULL; RtlCaptureContext (&context); frame.AddrPC.Mode = AddrModeFlat; frame.AddrStack.Mode = AddrModeFlat; frame.AddrFrame.Mode = AddrModeFlat; #if (defined _M_IX86) machine = IMAGE_FILE_MACHINE_I386; frame.AddrFrame.Offset = context.Ebp; frame.AddrPC.Offset = context.Eip; frame.AddrStack.Offset = context.Esp; #elif (defined _M_X64) machine = IMAGE_FILE_MACHINE_AMD64; frame.AddrFrame.Offset = context.Rbp; frame.AddrPC.Offset = context.Rip; frame.AddrStack.Offset = context.Rsp; #else return NULL; #endif trace = g_string_new (NULL); module_info.SizeOfStruct = sizeof (module_info); save_context = (machine == IMAGE_FILE_MACHINE_I386) ? NULL : &context; while (TRUE) { char buffer[sizeof (SYMBOL_INFO) + MAX_SYM_NAME * sizeof (TCHAR)]; PSYMBOL_INFO symbol = (PSYMBOL_INFO) buffer; IMAGEHLP_LINE64 line; DWORD displacement = 0; symbol->SizeOfStruct = sizeof (SYMBOL_INFO); symbol->MaxNameLen = MAX_SYM_NAME; line.SizeOfStruct = sizeof (line); if (!dbg_help_vtable.pStackWalk64 (machine, process, thread, &frame, save_context, 0, dbg_help_vtable.pSymFunctionTableAccess64, dbg_help_vtable.pSymGetModuleBase64, 0)) { break; } if (dbg_help_vtable.pSymFromAddr (process, frame.AddrPC.Offset, 0, symbol)) g_string_append_printf (trace, "%s ", symbol->Name); else g_string_append (trace, "?? "); if (dbg_help_vtable.pSymGetLineFromAddr64 (process, frame.AddrPC.Offset, &displacement, &line)) g_string_append_printf (trace, "(%s:%lu)", line.FileName, line.LineNumber); else if (dbg_help_vtable.pSymGetModuleInfo64 (process, frame.AddrPC.Offset, &module_info)) g_string_append_printf (trace, "(%s)", module_info.ImageName); else g_string_append_printf (trace, "(%s)", "??"); g_string_append (trace, "\n"); } return g_string_free (trace, FALSE); } #endif /* HAVE_DBGHELP */ /** * gst_debug_get_stack_trace: * @flags: A set of #GstStackTraceFlags to determine how the stack trace should * look like. Pass #GST_STACK_TRACE_SHOW_NONE to retrieve a minimal backtrace. * * Returns: (nullable): a stack trace, if libunwind or glibc backtrace are * present, else %NULL. * * Since: 1.12 */ gchar * gst_debug_get_stack_trace (GstStackTraceFlags flags) { gchar *trace = NULL; #ifdef HAVE_BACKTRACE gboolean have_backtrace = TRUE; #else gboolean have_backtrace = FALSE; #endif #ifdef HAVE_UNWIND if ((flags & GST_STACK_TRACE_SHOW_FULL) || !have_backtrace) trace = generate_unwind_trace (flags); #elif defined(HAVE_DBGHELP) trace = generate_dbghelp_trace (); #endif if (trace) return trace; else if (have_backtrace) return generate_backtrace_trace (); return NULL; } /** * gst_debug_print_stack_trace: * * If libunwind, glibc backtrace or DbgHelp are present * a stack trace is printed. */ void gst_debug_print_stack_trace (void) { gchar *trace = gst_debug_get_stack_trace (GST_STACK_TRACE_SHOW_FULL); if (trace) { #ifdef G_OS_WIN32 G_LOCK (win_print_mutex); #endif g_print ("%s\n", trace); #ifdef G_OS_WIN32 G_UNLOCK (win_print_mutex); #endif } g_free (trace); } #ifndef GST_DISABLE_GST_DEBUG typedef struct { guint max_size_per_thread; guint thread_timeout; GQueue threads; GHashTable *thread_index; } GstRingBufferLogger; typedef struct { GList *link; gint64 last_use; GThread *thread; GQueue log; gsize log_size; } GstRingBufferLog; G_LOCK_DEFINE_STATIC (ring_buffer_logger); static GstRingBufferLogger *ring_buffer_logger = NULL; static void gst_ring_buffer_logger_log (GstDebugCategory * category, GstDebugLevel level, const gchar * file, const gchar * function, gint line, GObject * object, GstDebugMessage * message, gpointer user_data) { GstRingBufferLogger *logger = user_data; gint pid; GThread *thread; GstClockTime elapsed; gchar *obj = NULL; gchar c; gchar *output; gsize output_len; GstRingBufferLog *log; gint64 now = g_get_monotonic_time (); const gchar *message_str = gst_debug_message_get (message); /* __FILE__ might be a file name or an absolute path or a * relative path, irrespective of the exact compiler used, * in which case we want to shorten it to the filename for * readability. */ c = file[0]; if (c == '.' || c == '/' || c == '\\' || (c != '\0' && file[1] == ':')) { file = gst_path_basename (file); } if (object) { obj = gst_debug_print_object (object); } else { obj = (gchar *) ""; } elapsed = GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ()); pid = getpid (); thread = g_thread_self (); /* no color, all platforms */ #define PRINT_FMT " "PID_FMT" "PTR_FMT" %s "CAT_FMT" %s\n" output = g_strdup_printf ("%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed), pid, thread, gst_debug_level_get_name (level), gst_debug_category_get_name (category), file, line, function, obj, message_str); #undef PRINT_FMT output_len = strlen (output); if (object != NULL) g_free (obj); G_LOCK (ring_buffer_logger); if (logger->thread_timeout > 0) { gchar *buf; /* Remove all threads that saw no output since thread_timeout seconds. * By construction these are all at the tail of the queue, and the queue * is ordered by last use, so we just need to look at the tail. */ while (logger->threads.tail) { log = logger->threads.tail->data; if (log->last_use + logger->thread_timeout * G_USEC_PER_SEC >= now) break; g_hash_table_remove (logger->thread_index, log->thread); while ((buf = g_queue_pop_head (&log->log))) g_free (buf); g_free (log); g_queue_pop_tail (&logger->threads); } } /* Get logger for this thread, and put it back at the * head of the threads queue */ log = g_hash_table_lookup (logger->thread_index, thread); if (!log) { log = g_new0 (GstRingBufferLog, 1); g_queue_init (&log->log); log->log_size = 0; g_queue_push_head (&logger->threads, log); log->link = logger->threads.head; log->thread = thread; g_hash_table_insert (logger->thread_index, thread, log); } else { g_queue_unlink (&logger->threads, log->link); g_queue_push_head_link (&logger->threads, log->link); } log->last_use = now; if (output_len < logger->max_size_per_thread) { gchar *buf; /* While using a GQueue here is not the most efficient thing to do, we * have to allocate a string for every output anyway and could just store * that instead of copying it to an actual ringbuffer. * Better than GQueue would be GstQueueArray, but that one is in * libgstbase and we can't use it here. That one allocation will not make * much of a difference anymore, considering the number of allocations * needed to get to this point... */ while (log->log_size + output_len > logger->max_size_per_thread) { buf = g_queue_pop_head (&log->log); log->log_size -= strlen (buf); g_free (buf); } g_queue_push_tail (&log->log, output); log->log_size += output_len; } else { gchar *buf; /* Can't really write anything as the line is bigger than the maximum * allowed log size already, so just remove everything */ while ((buf = g_queue_pop_head (&log->log))) g_free (buf); g_free (output); log->log_size = 0; } G_UNLOCK (ring_buffer_logger); } /** * gst_debug_ring_buffer_logger_get_logs: * * Fetches the current logs per thread from the ring buffer logger. See * gst_debug_add_ring_buffer_logger() for details. * * Returns: (transfer full) (array zero-terminated): NULL-terminated array of * strings with the debug output per thread * * Since: 1.14 */ gchar ** gst_debug_ring_buffer_logger_get_logs (void) { gchar **logs, **tmp; GList *l; g_return_val_if_fail (ring_buffer_logger != NULL, NULL); G_LOCK (ring_buffer_logger); tmp = logs = g_new0 (gchar *, ring_buffer_logger->threads.length + 1); for (l = ring_buffer_logger->threads.head; l; l = l->next) { GstRingBufferLog *log = l->data; GList *l; gchar *p; gsize len; *tmp = p = g_new0 (gchar, log->log_size + 1); for (l = log->log.head; l; l = l->next) { len = strlen (l->data); memcpy (p, l->data, len); p += len; } tmp++; } G_UNLOCK (ring_buffer_logger); return logs; } static void gst_ring_buffer_logger_free (GstRingBufferLogger * logger) { G_LOCK (ring_buffer_logger); if (ring_buffer_logger == logger) { GstRingBufferLog *log; while ((log = g_queue_pop_head (&logger->threads))) { gchar *buf; while ((buf = g_queue_pop_head (&log->log))) g_free (buf); g_free (log); } g_hash_table_unref (logger->thread_index); g_free (logger); ring_buffer_logger = NULL; } G_UNLOCK (ring_buffer_logger); } /** * gst_debug_add_ring_buffer_logger: * @max_size_per_thread: Maximum size of log per thread in bytes * @thread_timeout: Timeout for threads in seconds * * Adds a memory ringbuffer based debug logger that stores up to * @max_size_per_thread bytes of logs per thread and times out threads after * @thread_timeout seconds of inactivity. * * Logs can be fetched with gst_debug_ring_buffer_logger_get_logs() and the * logger can be removed again with gst_debug_remove_ring_buffer_logger(). * Only one logger at a time is possible. * * Since: 1.14 */ void gst_debug_add_ring_buffer_logger (guint max_size_per_thread, guint thread_timeout) { GstRingBufferLogger *logger; G_LOCK (ring_buffer_logger); if (ring_buffer_logger) { g_warn_if_reached (); G_UNLOCK (ring_buffer_logger); return; } logger = ring_buffer_logger = g_new0 (GstRingBufferLogger, 1); logger->max_size_per_thread = max_size_per_thread; logger->thread_timeout = thread_timeout; logger->thread_index = g_hash_table_new (g_direct_hash, g_direct_equal); g_queue_init (&logger->threads); gst_debug_add_log_function (gst_ring_buffer_logger_log, logger, (GDestroyNotify) gst_ring_buffer_logger_free); G_UNLOCK (ring_buffer_logger); } /** * gst_debug_remove_ring_buffer_logger: * * Removes any previously added ring buffer logger with * gst_debug_add_ring_buffer_logger(). * * Since: 1.14 */ void gst_debug_remove_ring_buffer_logger (void) { gst_debug_remove_log_function (gst_ring_buffer_logger_log); } #else /* GST_DISABLE_GST_DEBUG */ #ifndef GST_REMOVE_DISABLED gchar ** gst_debug_ring_buffer_logger_get_logs (void) { return NULL; } void gst_debug_add_ring_buffer_logger (guint max_size_per_thread, guint thread_timeout) { } void gst_debug_remove_ring_buffer_logger (void) { } #endif /* GST_REMOVE_DISABLED */ #endif /* GST_DISABLE_GST_DEBUG */