gst/gsttracerutils.h

   1 /* GStreamer
   2  * Copyright (C) 2013 Stefan Sauer <ensonic@users.sf.net>
   3  *
   4  * gsttracerutils.h: tracing subsystem
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  */
  21
  22
  23 #ifndef __GST_TRACER_UTILS_H__
  24 #define __GST_TRACER_UTILS_H__
  25
  26 #include <glib.h>
  27 #include <glib-object.h>
  28 #include <gst/gstconfig.h>
  29 #include <gst/gstbin.h>
  30
  31 G_BEGIN_DECLS
  32
  33 #ifndef GST_DISABLE_GST_TRACER_HOOKS
  34
  35 /* tracing hooks */
  36
  37 void _priv_gst_tracing_init (void);
  38 void _priv_gst_tracing_deinit (void);
  39
  40 /* tracer quarks */
  41
  42 /* These enums need to match the number and order
  43  * of strings declared in _quark_table, in gsttracerutils.c */
  44 typedef enum /*< skip >*/
  45 {
  46   GST_TRACER_QUARK_HOOK_PAD_PUSH_PRE = 0,
  47   GST_TRACER_QUARK_HOOK_PAD_PUSH_POST,
  48   GST_TRACER_QUARK_HOOK_PAD_PUSH_LIST_PRE,
  49   GST_TRACER_QUARK_HOOK_PAD_PUSH_LIST_POST,
  50   GST_TRACER_QUARK_HOOK_PAD_PULL_RANGE_PRE,
  51   GST_TRACER_QUARK_HOOK_PAD_PULL_RANGE_POST,
  52   GST_TRACER_QUARK_HOOK_PAD_PUSH_EVENT_PRE ,
  53   GST_TRACER_QUARK_HOOK_PAD_PUSH_EVENT_POST,
  54   GST_TRACER_QUARK_HOOK_PAD_QUERY_PRE ,
  55   GST_TRACER_QUARK_HOOK_PAD_QUERY_POST,
  56   GST_TRACER_QUARK_HOOK_ELEMENT_POST_MESSAGE_PRE,
  57   GST_TRACER_QUARK_HOOK_ELEMENT_POST_MESSAGE_POST,
  58   GST_TRACER_QUARK_HOOK_ELEMENT_QUERY_PRE,
  59   GST_TRACER_QUARK_HOOK_ELEMENT_QUERY_POST,
  60   GST_TRACER_QUARK_HOOK_ELEMENT_NEW,
  61   GST_TRACER_QUARK_HOOK_ELEMENT_ADD_PAD,
  62   GST_TRACER_QUARK_HOOK_ELEMENT_REMOVE_PAD,
  63   GST_TRACER_QUARK_HOOK_BIN_ADD_PRE,
  64   GST_TRACER_QUARK_HOOK_BIN_ADD_POST,
  65   GST_TRACER_QUARK_HOOK_BIN_REMOVE_PRE,
  66   GST_TRACER_QUARK_HOOK_BIN_REMOVE_POST,
  67   GST_TRACER_QUARK_HOOK_PAD_LINK_PRE,
  68   GST_TRACER_QUARK_HOOK_PAD_LINK_POST,
  69   GST_TRACER_QUARK_HOOK_PAD_UNLINK_PRE,
  70   GST_TRACER_QUARK_HOOK_PAD_UNLINK_POST,
  71   GST_TRACER_QUARK_HOOK_ELEMENT_CHANGE_STATE_PRE,
  72   GST_TRACER_QUARK_HOOK_ELEMENT_CHANGE_STATE_POST,
  73   GST_TRACER_QUARK_MAX
  74 } GstTracerQuarkId;
  75
  76 extern GQuark _priv_gst_tracer_quark_table[GST_TRACER_QUARK_MAX];
  77
  78 #define GST_TRACER_QUARK(q) _priv_gst_tracer_quark_table[GST_TRACER_QUARK_##q]
  79
  80 /* tracing module helpers */
  81
  82 typedef struct {
  83   GObject *tracer;
  84   GCallback func;
  85 } GstTracerHook;
  86
  87 extern gboolean _priv_tracer_enabled;
  88 /* key are hook-id quarks, values are GstTracerHook */
  89 extern GHashTable *_priv_tracers;
  90
  91 #define GST_TRACER_IS_ENABLED (_priv_tracer_enabled)
  92
  93 #define GST_TRACER_TS \
  94   GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ())
  95
  96 /* tracing hooks */
  97
  98 #define GST_TRACER_ARGS h->tracer, ts
  99 #define GST_TRACER_DISPATCH(key,type,args) G_STMT_START{ \
 100   if (GST_TRACER_IS_ENABLED) {                                         \
 101     GstClockTime ts = GST_TRACER_TS;                                   \
 102     GList *__l, *__n;                                                  \
 103     GstTracerHook *h;                                                  \
 104     __l = g_hash_table_lookup (_priv_tracers, GINT_TO_POINTER (key));  \
 105     for (__n = __l; __n; __n = g_list_next (__n)) {                    \
 106       h = (GstTracerHook *) __n->data;                                 \
 107       ((type)(h->func)) args;                                          \
 108     }                                                                  \
 109     __l = g_hash_table_lookup (_priv_tracers, NULL);                   \
 110     for (__n = __l; __n; __n = g_list_next (__n)) {                    \
 111       h = (GstTracerHook *) __n->data;                                 \
 112       ((type)(h->func)) args;                                          \
 113     }                                                                  \
 114   }                                                                    \
 115 }G_STMT_END
 116
 117 /**
 118  * GstTracerHookPadPushPre:
 119  * @self: the tracer instance
 120  * @ts: the current timestamp
 121  * @pad: the pad
 122  * @buffer: the buffer
 123  *
 124  * Pre-hook for gst_pad_push() named "pad-push-pre".
 125  */
 126 typedef void (*GstTracerHookPadPushPre) (GObject *self, GstClockTime ts,
 127     GstPad *pad, GstBuffer *buffer);
 128 #define GST_TRACER_PAD_PUSH_PRE(pad, buffer) G_STMT_START{ \
 129   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_PRE), \
 130     GstTracerHookPadPushPre, (GST_TRACER_ARGS, pad, buffer)); \
 131 }G_STMT_END
 132
 133 /**
 134  * GstTracerHookPadPushPost:
 135  * @self: the tracer instance
 136  * @ts: the current timestamp
 137  * @pad: the pad
 138  * @res: the result of gst_pad_push()
 139  *
 140  * Post-hook for gst_pad_push() named "pad-push-post".
 141  */
 142 typedef void (*GstTracerHookPadPushPost) (GObject * self, GstClockTime ts,
 143     GstPad *pad, GstFlowReturn res);
 144 #define GST_TRACER_PAD_PUSH_POST(pad, res) G_STMT_START{ \
 145   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_POST), \
 146     GstTracerHookPadPushPost, (GST_TRACER_ARGS, pad, res)); \
 147 }G_STMT_END
 148
 149 /**
 150  * GstTracerHookPadPushListPre:
 151  * @self: the tracer instance
 152  * @ts: the current timestamp
 153  * @pad: the pad
 154  * @list: the buffer-list
 155  *
 156  * Pre-hook for gst_pad_push_list() named "pad-push-list-pre".
 157  */
 158 typedef void (*GstTracerHookPadPushListPre) (GObject *self, GstClockTime ts,
 159     GstPad *pad, GstBufferList *list);
 160 #define GST_TRACER_PAD_PUSH_LIST_PRE(pad, list) G_STMT_START{ \
 161   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_PRE), \
 162     GstTracerHookPadPushListPre, (GST_TRACER_ARGS, pad, list)); \
 163 }G_STMT_END
 164
 165 /**
 166  * GstTracerHookPadPushListPost:
 167  * @self: the tracer instance
 168  * @ts: the current timestamp
 169  * @pad: the pad
 170  * @res: the result of gst_pad_push_list()
 171  *
 172  * Post-hook for gst_pad_push_list() named "pad-push-list-post".
 173  */
 174 typedef void (*GstTracerHookPadPushListPost) (GObject *self, GstClockTime ts,
 175     GstPad *pad,
 176     GstFlowReturn res);
 177 #define GST_TRACER_PAD_PUSH_LIST_POST(pad, res) G_STMT_START{ \
 178   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_POST), \
 179     GstTracerHookPadPushListPost, (GST_TRACER_ARGS, pad, res)); \
 180 }G_STMT_END
 181
 182 /**
 183  * GstTracerHookPadPullRangePre:
 184  * @self: the tracer instance
 185  * @ts: the current timestamp
 186  * @pad: the pad
 187  * @offset: the stream offset
 188  * @size: the requested size
 189  *
 190  * Pre-hook for gst_pad_pull_range() named "pad-pull-range-pre".
 191  */
 192 typedef void (*GstTracerHookPadPullRangePre) (GObject *self, GstClockTime ts,
 193     GstPad *pad, guint64 offset, guint size);
 194 #define GST_TRACER_PAD_PULL_RANGE_PRE(pad, offset, size) G_STMT_START{ \
 195   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_PRE), \
 196     GstTracerHookPadPullRangePre, (GST_TRACER_ARGS, pad, offset, size)); \
 197 }G_STMT_END
 198
 199 /**
 200  * GstTracerHookPadPullRangePost:
 201  * @self: the tracer instance
 202  * @ts: the current timestamp
 203  * @pad: the pad
 204  * @buffer: the buffer
 205  * @res: the result of gst_pad_pull_range()
 206  *
 207  * Post-hook for gst_pad_pull_range() named "pad-pull-range-post".
 208  */
 209 typedef void (*GstTracerHookPadPullRangePost) (GObject *self, GstClockTime ts,
 210     GstPad *pad, GstBuffer *buffer, GstFlowReturn res);
 211 #define GST_TRACER_PAD_PULL_RANGE_POST(pad, buffer, res) G_STMT_START{ \
 212   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_POST), \
 213     GstTracerHookPadPullRangePost, (GST_TRACER_ARGS, pad, buffer, res)); \
 214 }G_STMT_END
 215
 216 /**
 217  * GstTracerHookPadPushEventPre:
 218  * @self: the tracer instance
 219  * @ts: the current timestamp
 220  * @pad: the pad
 221  * @event: the event
 222  *
 223  * Pre-hook for gst_pad_push_event() named "pad-push-event-pre".
 224  */
 225 typedef void (*GstTracerHookPadPushEventPre) (GObject *self, GstClockTime ts,
 226     GstPad *pad, GstEvent *event);
 227 #define GST_TRACER_PAD_PUSH_EVENT_PRE(pad, event) G_STMT_START{ \
 228   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_PRE), \
 229     GstTracerHookPadPushEventPre, (GST_TRACER_ARGS, pad, event)); \
 230 }G_STMT_END
 231
 232 /**
 233  * GstTracerHookPadPushEventPost:
 234  * @self: the tracer instance
 235  * @ts: the current timestamp
 236  * @pad: the pad
 237  * @res: the result of gst_pad_push_event()
 238  *
 239  * Post-hook for gst_pad_push_event() named "pad-push-event-post".
 240  */
 241 typedef void (*GstTracerHookPadPushEventPost) (GObject *self, GstClockTime ts,
 242     GstPad *pad, gboolean res);
 243 #define GST_TRACER_PAD_PUSH_EVENT_POST(pad, res) G_STMT_START{ \
 244   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_POST), \
 245     GstTracerHookPadPushEventPost, (GST_TRACER_ARGS, pad, res)); \
 246 }G_STMT_END
 247
 248 /**
 249  * GstTracerHookPadQueryPre:
 250  * @self: the tracer instance
 251  * @ts: the current timestamp
 252  * @pad: the pad
 253  * @query: the query
 254  *
 255  * Pre-hook for gst_pad_query() named "pad-query-pre".
 256  */
 257 typedef void (*GstTracerHookPadQueryPre) (GObject *self, GstClockTime ts,
 258     GstPad *pad, GstQuery *query);
 259 #define GST_TRACER_PAD_QUERY_PRE(pad, query) G_STMT_START{ \
 260   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_QUERY_PRE), \
 261     GstTracerHookPadQueryPre, (GST_TRACER_ARGS, pad, query)); \
 262 }G_STMT_END
 263
 264 /**
 265  * GstTracerHookPadQueryPost:
 266  * @self: the tracer instance
 267  * @ts: the current timestamp
 268  * @pad: the pad
 269  * @res: the result of gst_pad_query()
 270  * @query: the query
 271  *
 272  * Post-hook for gst_pad_query() named "pad-query-post".
 273  */
 274 typedef void (*GstTracerHookPadQueryPost) (GObject *self, GstClockTime ts,
 275     GstPad *pad, gboolean res, GstQuery *query);
 276 #define GST_TRACER_PAD_QUERY_POST(pad, res, query) G_STMT_START{ \
 277   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_QUERY_POST), \
 278     GstTracerHookPadQueryPost, (GST_TRACER_ARGS, pad, res, query)); \
 279 }G_STMT_END
 280
 281 /**
 282  * GstTracerHookElementPostMessagePre:
 283  * @self: the tracer instance
 284  * @ts: the current timestamp
 285  * @element: the element
 286  * @message: the message
 287  *
 288  * Pre-hook for gst_element_post_message() named "element-post-message-pre".
 289  */
 290 typedef void (*GstTracerHookElementPostMessagePre) (GObject *self,
 291     GstClockTime ts, GstElement *element, GstMessage *message);
 292 #define GST_TRACER_ELEMENT_POST_MESSAGE_PRE(element, message) G_STMT_START{ \
 293   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_PRE), \
 294     GstTracerHookElementPostMessagePre, (GST_TRACER_ARGS, element, message)); \
 295 }G_STMT_END
 296
 297 /**
 298  * GstTracerHookElementPostMessagePost:
 299  * @self: the tracer instance
 300  * @ts: the current timestamp
 301  * @element: the element
 302  * @res: the result of gst_element_post_message()
 303  *
 304  * Pre-hook for gst_element_post_message() named "element-post-message-post".
 305  */
 306 typedef void (*GstTracerHookElementPostMessagePost) (GObject *self,
 307     GstClockTime ts, GstElement *element, gboolean res);
 308 #define GST_TRACER_ELEMENT_POST_MESSAGE_POST(element, res) G_STMT_START{ \
 309   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_POST), \
 310     GstTracerHookElementPostMessagePost, (GST_TRACER_ARGS, element, res)); \
 311 }G_STMT_END
 312
 313 /**
 314  * GstTracerHookElementQueryPre:
 315  * @self: the tracer instance
 316  * @ts: the current timestamp
 317  * @element: the element
 318  * @query: the query
 319  *
 320  * Pre-hook for gst_element_query() named "element-query-pre".
 321  */
 322 typedef void (*GstTracerHookElementQueryPre) (GObject *self, GstClockTime ts,
 323     GstElement *element, GstQuery *query);
 324 #define GST_TRACER_ELEMENT_QUERY_PRE(element, query) G_STMT_START{ \
 325   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_PRE), \
 326     GstTracerHookElementQueryPre, (GST_TRACER_ARGS, element, query)); \
 327 }G_STMT_END
 328
 329 /**
 330  * GstTracerHookElementQueryPost:
 331  * @self: the tracer instance
 332  * @ts: the current timestamp
 333  * @element: the element
 334  * @res: the result of gst_element_query()
 335  *
 336  * Post-hook for gst_element_query() named "element-query-post".
 337  */
 338 typedef void (*GstTracerHookElementQueryPost) (GObject *self, GstClockTime ts,
 339     GstElement *element, gboolean res);
 340 #define GST_TRACER_ELEMENT_QUERY_POST(element, res) G_STMT_START{ \
 341   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_POST), \
 342     GstTracerHookElementQueryPost, (GST_TRACER_ARGS, element, res)); \
 343 }G_STMT_END
 344
 345 /**
 346  * GstTracerHookElementNew:
 347  * @self: the tracer instance
 348  * @ts: the current timestamp
 349  * @element: the element
 350  *
 351  * Hook for gst_element_new() named "element-new".
 352  */
 353 typedef void (*GstTracerHookElementNew) (GObject *self, GstClockTime ts,
 354     GstElement *element);
 355 #define GST_TRACER_ELEMENT_NEW(element) G_STMT_START{ \
 356   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_NEW), \
 357     GstTracerHookElementNew, (GST_TRACER_ARGS, element)); \
 358 }G_STMT_END
 359
 360 /**
 361  * GstTracerHookElementAddPad:
 362  * @self: the tracer instance
 363  * @ts: the current timestamp
 364  * @element: the element
 365  * @pad: the pad
 366  *
 367  * Hook for gst_element_add_pad() named "element-add-pad".
 368  */
 369 typedef void (*GstTracerHookElementAddPad) (GObject *self, GstClockTime ts,
 370     GstElement *element, GstPad *pad);
 371 #define GST_TRACER_ELEMENT_ADD_PAD(element, pad) G_STMT_START{ \
 372   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_ADD_PAD), \
 373     GstTracerHookElementAddPad, (GST_TRACER_ARGS, element, pad)); \
 374 }G_STMT_END
 375
 376 /**
 377  * GstTracerHookElementRemovePad:
 378  * @self: the tracer instance
 379  * @ts: the current timestamp
 380  * @element: the element
 381  * @pad: the pad
 382  *
 383  * Hook for gst_element_remove_pad() named "element-remove-pad".
 384  */
 385 typedef void (*GstTracerHookElementRemovePad) (GObject *self, GstClockTime ts,
 386     GstElement *element, GstPad *pad);
 387 #define GST_TRACER_ELEMENT_REMOVE_PAD(element, pad) G_STMT_START{ \
 388   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_REMOVE_PAD), \
 389     GstTracerHookElementRemovePad, (GST_TRACER_ARGS, element, pad)); \
 390 }G_STMT_END
 391
 392 /**
 393  * GstTracerHookElementChangeStatePre:
 394  * @self: the tracer instance
 395  * @ts: the current timestamp
 396  * @element: the element
 397  * @transition: the transition
 398  *
 399  * Pre-hook for gst_element_change_state() named "element-change-state-pre".
 400  */
 401 typedef void (*GstTracerHookElementChangeStatePre) (GObject *self,
 402     GstClockTime ts, GstElement *element, GstStateChange transition);
 403 #define GST_TRACER_ELEMENT_CHANGE_STATE_PRE(element, transition) G_STMT_START{ \
 404   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_CHANGE_STATE_PRE), \
 405     GstTracerHookElementChangeStatePre, (GST_TRACER_ARGS, element, transition)); \
 406 }G_STMT_END
 407
 408 /**
 409  * GstTracerHookElementChangeStatePost:
 410  * @self: the tracer instance
 411  * @ts: the current timestamp
 412  * @element: the element
 413  * @transition: the transition
 414  * @result: the result of gst_pad_push()
 415  *
 416  * Post-hook for gst_element_change_state() named "element-change-state-post".
 417  */
 418 typedef void (*GstTracerHookElementChangeStatePost) (GObject *self,
 419     GstClockTime ts, GstElement *element, GstStateChange transition,
 420     GstStateChangeReturn result);
 421 #define GST_TRACER_ELEMENT_CHANGE_STATE_POST(element, transition, result) G_STMT_START{ \
 422   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_CHANGE_STATE_POST), \
 423     GstTracerHookElementChangeStatePost, (GST_TRACER_ARGS, element, transition, result)); \
 424 }G_STMT_END
 425
 426 /**
 427  * GstTracerHookBinAddPre:
 428  * @self: the tracer instance
 429  * @ts: the current timestamp
 430  * @bin: the bin
 431  * @element: the element
 432  *
 433  * Pre-hook for gst_bin_add() named "bin-add-pre".
 434  */
 435 typedef void (*GstTracerHookBinAddPre) (GObject *self, GstClockTime ts,
 436     GstBin *bin, GstElement *element);
 437 #define GST_TRACER_BIN_ADD_PRE(bin, element) G_STMT_START{ \
 438   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_ADD_PRE), \
 439     GstTracerHookBinAddPre, (GST_TRACER_ARGS, bin, element)); \
 440 }G_STMT_END
 441
 442 /**
 443  * GstTracerHookBinAddPost:
 444  * @self: the tracer instance
 445  * @ts: the current timestamp
 446  * @bin: the bin
 447  * @element: the element
 448  * @result: the result of gst_bin_add()
 449  *
 450  * Post-hook for gst_bin_add() named "bin-add-post".
 451  */
 452 typedef void (*GstTracerHookBinAddPost) (GObject *self, GstClockTime ts,
 453     GstBin *bin, GstElement *element, gboolean result);
 454 #define GST_TRACER_BIN_ADD_POST(bin, element, result) G_STMT_START{ \
 455   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_ADD_POST), \
 456     GstTracerHookBinAddPost, (GST_TRACER_ARGS, bin, element, result)); \
 457 }G_STMT_END
 458
 459 /**
 460  * GstTracerHookBinRemovePre:
 461  * @self: the tracer instance
 462  * @ts: the current timestamp
 463  * @bin: the bin
 464  * @element: the element
 465  *
 466  * Pre-hook for gst_bin_remove() named "bin-remove-pre".
 467  */
 468 typedef void (*GstTracerHookBinRemovePre) (GObject *self, GstClockTime ts,
 469     GstBin *bin, GstElement *element);
 470 #define GST_TRACER_BIN_REMOVE_PRE(bin, element) G_STMT_START{ \
 471   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_REMOVE_PRE), \
 472     GstTracerHookBinRemovePre, (GST_TRACER_ARGS, bin, element)); \
 473 }G_STMT_END
 474
 475 /**
 476  * GstTracerHookBinRemovePost:
 477  * @self: the tracer instance
 478  * @ts: the current timestamp
 479  * @bin: the bin
 480  * @result: the result of gst_bin_remove()
 481  *
 482  * Post-hook for gst_bin_remove() named "bin-remove-post".
 483  */
 484 typedef void (*GstTracerHookBinRemovePost) (GObject *self, GstClockTime ts,
 485     GstBin *bin, gboolean result);
 486 #define GST_TRACER_BIN_REMOVE_POST(bin, result) G_STMT_START{ \
 487   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_REMOVE_POST), \
 488     GstTracerHookBinRemovePost, (GST_TRACER_ARGS, bin, result)); \
 489 }G_STMT_END
 490
 491 /**
 492  * GstTracerHookPadLinkPre:
 493  * @self: the tracer instance
 494  * @ts: the current timestamp
 495  * @srcpad: the srcpad
 496  * @sinkpad: the sinkpad
 497  *
 498  * Pre-hook for gst_pad_link() named "pad-link-pre".
 499  */
 500 typedef void (*GstTracerHookPadLinkPre) (GObject *self, GstClockTime ts,
 501     GstPad *srcpad, GstPad *sinkpad);
 502 #define GST_TRACER_PAD_LINK_PRE(srcpad, sinkpad) G_STMT_START{ \
 503   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_LINK_PRE), \
 504     GstTracerHookPadLinkPre, (GST_TRACER_ARGS, srcpad, sinkpad)); \
 505 }G_STMT_END
 506
 507 /**
 508  * GstTracerHookPadLinkPost:
 509  * @self: the tracer instance
 510  * @ts: the current timestamp
 511  * @srcpad: the srcpad
 512  * @sinkpad: the sinkpad
 513  * @result: the result of gst_pad_link()
 514  *
 515  * Post-hook for gst_pad_link() named "pad-link-post".
 516  */
 517 typedef void (*GstTracerHookPadLinkPost) (GObject *self, GstClockTime ts,
 518     GstPad *srcpad, GstPad *sinkpad, GstPadLinkReturn result);
 519 #define GST_TRACER_PAD_LINK_POST(srcpad, sinkpad, result) G_STMT_START{ \
 520   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_LINK_POST), \
 521     GstTracerHookPadLinkPost, (GST_TRACER_ARGS, srcpad, sinkpad, result)); \
 522 }G_STMT_END
 523
 524 /**
 525  * GstTracerHookPadUnlinkPre:
 526  * @self: the tracer instance
 527  * @ts: the current timestamp
 528  * @srcpad: the srcpad
 529  * @sinkpad: the sinkpad
 530  *
 531  * Pre-hook for gst_pad_unlink() named "pad-unlink-pre".
 532  */
 533 typedef void (*GstTracerHookPadUnlinkPre) (GObject *self, GstClockTime ts,
 534     GstPad *srcpad, GstPad *sinkpad);
 535 #define GST_TRACER_PAD_UNLINK_PRE(srcpad, sinkpad) G_STMT_START{ \
 536   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_UNLINK_PRE), \
 537     GstTracerHookPadUnlinkPre, (GST_TRACER_ARGS, srcpad, sinkpad)); \
 538 }G_STMT_END
 539
 540 /**
 541  * GstTracerHookPadUnlinkPost:
 542  * @self: the tracer instance
 543  * @ts: the current timestamp
 544  * @srcpad: the srcpad
 545  * @sinkpad: the sinkpad
 546  * @result: the result of gst_pad_push()
 547  *
 548  * Post-hook for gst_pad_unlink() named "pad-unlink-post".
 549  */
 550 typedef void (*GstTracerHookPadUnlinkPost) (GObject *self, GstClockTime ts,
 551     GstPad *srcpad, GstPad *sinkpad, gboolean result);
 552 #define GST_TRACER_PAD_UNLINK_POST(srcpad, sinkpad, result) G_STMT_START{ \
 553   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_UNLINK_POST), \
 554     GstTracerHookPadUnlinkPost, (GST_TRACER_ARGS, srcpad, sinkpad, result)); \
 555 }G_STMT_END
 556
 557 #else /* !GST_DISABLE_GST_TRACER_HOOKS */
 558
 559 #define GST_TRACER_PAD_PUSH_PRE(pad, buffer)
 560 #define GST_TRACER_PAD_PUSH_POST(pad, res)
 561 #define GST_TRACER_PAD_PUSH_LIST_PRE(pad, list)
 562 #define GST_TRACER_PAD_PUSH_LIST_POST(pad, res)
 563 #define GST_TRACER_PAD_PULL_RANGE_PRE(pad, offset, size)
 564 #define GST_TRACER_PAD_PULL_RANGE_POST(pad, buffer, res)
 565 #define GST_TRACER_PAD_PUSH_EVENT_PRE(pad, event)
 566 #define GST_TRACER_PAD_PUSH_EVENT_POST(pad, res)
 567 #define GST_TRACER_PAD_QUERY_PRE(pad, query)
 568 #define GST_TRACER_PAD_QUERY_POST(pad, res, query)
 569 #define GST_TRACER_ELEMENT_POST_MESSAGE_PRE(element, message)
 570 #define GST_TRACER_ELEMENT_POST_MESSAGE_POST(element, res)
 571 #define GST_TRACER_ELEMENT_QUERY_PRE(element, query)
 572 #define GST_TRACER_ELEMENT_QUERY_POST(element, res)
 573 #define GST_TRACER_ELEMENT_NEW(element)
 574 #define GST_TRACER_ELEMENT_ADD_PAD(element, pad)
 575 #define GST_TRACER_ELEMENT_REMOVE_PAD(element, pad)
 576 #define GST_TRACER_ELEMENT_CHANGE_STATE_PRE(element, transition)
 577 #define GST_TRACER_ELEMENT_CHANGE_STATE_POST(element, transition, res)
 578 #define GST_TRACER_BIN_ADD_PRE(bin, element)
 579 #define GST_TRACER_BIN_ADD_POST(bin, element, res)
 580 #define GST_TRACER_BIN_REMOVE_PRE(bin, element)
 581 #define GST_TRACER_BIN_REMOVE_POST(bin, res)
 582 #define GST_TRACER_PAD_LINK_PRE(srcpad, sinkpad)
 583 #define GST_TRACER_PAD_LINK_POST(srcpad, sinkpad, res)
 584 #define GST_TRACER_PAD_UNLINK_PRE(srcpad, sinkpad)
 585 #define GST_TRACER_PAD_UNLINK_POST(srcpad, sinkpad, res)
 586
 587 #endif /* GST_DISABLE_GST_TRACER_HOOKS */
 588
 589 G_END_DECLS
 590
 591 #endif /* __GST_TRACER_UTILS_H__ */
 592