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  * @query: the query
 270  * @res: the result of gst_pad_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, GstQuery *query, gboolean res);
 276 #define GST_TRACER_PAD_QUERY_POST(pad, query, res) G_STMT_START{ \
 277   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_QUERY_POST), \
 278     GstTracerHookPadQueryPost, (GST_TRACER_ARGS, pad, query, res)); \
 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  * @query: the query
 335  * @res: the result of gst_element_query()
 336  *
 337  * Post-hook for gst_element_query() named "element-query-post".
 338  */
 339 typedef void (*GstTracerHookElementQueryPost) (GObject *self, GstClockTime ts,
 340     GstElement *element, GstQuery *query, gboolean res);
 341 #define GST_TRACER_ELEMENT_QUERY_POST(element, query, res) G_STMT_START{ \
 342   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_POST), \
 343     GstTracerHookElementQueryPost, (GST_TRACER_ARGS, element, query, res)); \
 344 }G_STMT_END
 345
 346 /**
 347  * GstTracerHookElementNew:
 348  * @self: the tracer instance
 349  * @ts: the current timestamp
 350  * @element: the element
 351  *
 352  * Hook for gst_element_new() named "element-new".
 353  */
 354 typedef void (*GstTracerHookElementNew) (GObject *self, GstClockTime ts,
 355     GstElement *element);
 356 #define GST_TRACER_ELEMENT_NEW(element) G_STMT_START{ \
 357   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_NEW), \
 358     GstTracerHookElementNew, (GST_TRACER_ARGS, element)); \
 359 }G_STMT_END
 360
 361 /**
 362  * GstTracerHookElementAddPad:
 363  * @self: the tracer instance
 364  * @ts: the current timestamp
 365  * @element: the element
 366  * @pad: the pad
 367  *
 368  * Hook for gst_element_add_pad() named "element-add-pad".
 369  */
 370 typedef void (*GstTracerHookElementAddPad) (GObject *self, GstClockTime ts,
 371     GstElement *element, GstPad *pad);
 372 #define GST_TRACER_ELEMENT_ADD_PAD(element, pad) G_STMT_START{ \
 373   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_ADD_PAD), \
 374     GstTracerHookElementAddPad, (GST_TRACER_ARGS, element, pad)); \
 375 }G_STMT_END
 376
 377 /**
 378  * GstTracerHookElementRemovePad:
 379  * @self: the tracer instance
 380  * @ts: the current timestamp
 381  * @element: the element
 382  * @pad: the pad
 383  *
 384  * Hook for gst_element_remove_pad() named "element-remove-pad".
 385  */
 386 typedef void (*GstTracerHookElementRemovePad) (GObject *self, GstClockTime ts,
 387     GstElement *element, GstPad *pad);
 388 #define GST_TRACER_ELEMENT_REMOVE_PAD(element, pad) G_STMT_START{ \
 389   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_REMOVE_PAD), \
 390     GstTracerHookElementRemovePad, (GST_TRACER_ARGS, element, pad)); \
 391 }G_STMT_END
 392
 393 /**
 394  * GstTracerHookElementChangeStatePre:
 395  * @self: the tracer instance
 396  * @ts: the current timestamp
 397  * @element: the element
 398  * @transition: the transition
 399  *
 400  * Pre-hook for gst_element_change_state() named "element-change-state-pre".
 401  */
 402 typedef void (*GstTracerHookElementChangeStatePre) (GObject *self,
 403     GstClockTime ts, GstElement *element, GstStateChange transition);
 404 #define GST_TRACER_ELEMENT_CHANGE_STATE_PRE(element, transition) G_STMT_START{ \
 405   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_CHANGE_STATE_PRE), \
 406     GstTracerHookElementChangeStatePre, (GST_TRACER_ARGS, element, transition)); \
 407 }G_STMT_END
 408
 409 /**
 410  * GstTracerHookElementChangeStatePost:
 411  * @self: the tracer instance
 412  * @ts: the current timestamp
 413  * @element: the element
 414  * @transition: the transition
 415  * @result: the result of gst_pad_push()
 416  *
 417  * Post-hook for gst_element_change_state() named "element-change-state-post".
 418  */
 419 typedef void (*GstTracerHookElementChangeStatePost) (GObject *self,
 420     GstClockTime ts, GstElement *element, GstStateChange transition,
 421     GstStateChangeReturn result);
 422 #define GST_TRACER_ELEMENT_CHANGE_STATE_POST(element, transition, result) G_STMT_START{ \
 423   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_CHANGE_STATE_POST), \
 424     GstTracerHookElementChangeStatePost, (GST_TRACER_ARGS, element, transition, result)); \
 425 }G_STMT_END
 426
 427 /**
 428  * GstTracerHookBinAddPre:
 429  * @self: the tracer instance
 430  * @ts: the current timestamp
 431  * @bin: the bin
 432  * @element: the element
 433  *
 434  * Pre-hook for gst_bin_add() named "bin-add-pre".
 435  */
 436 typedef void (*GstTracerHookBinAddPre) (GObject *self, GstClockTime ts,
 437     GstBin *bin, GstElement *element);
 438 #define GST_TRACER_BIN_ADD_PRE(bin, element) G_STMT_START{ \
 439   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_ADD_PRE), \
 440     GstTracerHookBinAddPre, (GST_TRACER_ARGS, bin, element)); \
 441 }G_STMT_END
 442
 443 /**
 444  * GstTracerHookBinAddPost:
 445  * @self: the tracer instance
 446  * @ts: the current timestamp
 447  * @bin: the bin
 448  * @element: the element
 449  * @result: the result of gst_bin_add()
 450  *
 451  * Post-hook for gst_bin_add() named "bin-add-post".
 452  */
 453 typedef void (*GstTracerHookBinAddPost) (GObject *self, GstClockTime ts,
 454     GstBin *bin, GstElement *element, gboolean result);
 455 #define GST_TRACER_BIN_ADD_POST(bin, element, result) G_STMT_START{ \
 456   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_ADD_POST), \
 457     GstTracerHookBinAddPost, (GST_TRACER_ARGS, bin, element, result)); \
 458 }G_STMT_END
 459
 460 /**
 461  * GstTracerHookBinRemovePre:
 462  * @self: the tracer instance
 463  * @ts: the current timestamp
 464  * @bin: the bin
 465  * @element: the element
 466  *
 467  * Pre-hook for gst_bin_remove() named "bin-remove-pre".
 468  */
 469 typedef void (*GstTracerHookBinRemovePre) (GObject *self, GstClockTime ts,
 470     GstBin *bin, GstElement *element);
 471 #define GST_TRACER_BIN_REMOVE_PRE(bin, element) G_STMT_START{ \
 472   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_REMOVE_PRE), \
 473     GstTracerHookBinRemovePre, (GST_TRACER_ARGS, bin, element)); \
 474 }G_STMT_END
 475
 476 /**
 477  * GstTracerHookBinRemovePost:
 478  * @self: the tracer instance
 479  * @ts: the current timestamp
 480  * @bin: the bin
 481  * @result: the result of gst_bin_remove()
 482  *
 483  * Post-hook for gst_bin_remove() named "bin-remove-post".
 484  */
 485 typedef void (*GstTracerHookBinRemovePost) (GObject *self, GstClockTime ts,
 486     GstBin *bin, gboolean result);
 487 #define GST_TRACER_BIN_REMOVE_POST(bin, result) G_STMT_START{ \
 488   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_REMOVE_POST), \
 489     GstTracerHookBinRemovePost, (GST_TRACER_ARGS, bin, result)); \
 490 }G_STMT_END
 491
 492 /**
 493  * GstTracerHookPadLinkPre:
 494  * @self: the tracer instance
 495  * @ts: the current timestamp
 496  * @srcpad: the srcpad
 497  * @sinkpad: the sinkpad
 498  *
 499  * Pre-hook for gst_pad_link() named "pad-link-pre".
 500  */
 501 typedef void (*GstTracerHookPadLinkPre) (GObject *self, GstClockTime ts,
 502     GstPad *srcpad, GstPad *sinkpad);
 503 #define GST_TRACER_PAD_LINK_PRE(srcpad, sinkpad) G_STMT_START{ \
 504   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_LINK_PRE), \
 505     GstTracerHookPadLinkPre, (GST_TRACER_ARGS, srcpad, sinkpad)); \
 506 }G_STMT_END
 507
 508 /**
 509  * GstTracerHookPadLinkPost:
 510  * @self: the tracer instance
 511  * @ts: the current timestamp
 512  * @srcpad: the srcpad
 513  * @sinkpad: the sinkpad
 514  * @result: the result of gst_pad_link()
 515  *
 516  * Post-hook for gst_pad_link() named "pad-link-post".
 517  */
 518 typedef void (*GstTracerHookPadLinkPost) (GObject *self, GstClockTime ts,
 519     GstPad *srcpad, GstPad *sinkpad, GstPadLinkReturn result);
 520 #define GST_TRACER_PAD_LINK_POST(srcpad, sinkpad, result) G_STMT_START{ \
 521   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_LINK_POST), \
 522     GstTracerHookPadLinkPost, (GST_TRACER_ARGS, srcpad, sinkpad, result)); \
 523 }G_STMT_END
 524
 525 /**
 526  * GstTracerHookPadUnlinkPre:
 527  * @self: the tracer instance
 528  * @ts: the current timestamp
 529  * @srcpad: the srcpad
 530  * @sinkpad: the sinkpad
 531  *
 532  * Pre-hook for gst_pad_unlink() named "pad-unlink-pre".
 533  */
 534 typedef void (*GstTracerHookPadUnlinkPre) (GObject *self, GstClockTime ts,
 535     GstPad *srcpad, GstPad *sinkpad);
 536 #define GST_TRACER_PAD_UNLINK_PRE(srcpad, sinkpad) G_STMT_START{ \
 537   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_UNLINK_PRE), \
 538     GstTracerHookPadUnlinkPre, (GST_TRACER_ARGS, srcpad, sinkpad)); \
 539 }G_STMT_END
 540
 541 /**
 542  * GstTracerHookPadUnlinkPost:
 543  * @self: the tracer instance
 544  * @ts: the current timestamp
 545  * @srcpad: the srcpad
 546  * @sinkpad: the sinkpad
 547  * @result: the result of gst_pad_push()
 548  *
 549  * Post-hook for gst_pad_unlink() named "pad-unlink-post".
 550  */
 551 typedef void (*GstTracerHookPadUnlinkPost) (GObject *self, GstClockTime ts,
 552     GstPad *srcpad, GstPad *sinkpad, gboolean result);
 553 #define GST_TRACER_PAD_UNLINK_POST(srcpad, sinkpad, result) G_STMT_START{ \
 554   GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_UNLINK_POST), \
 555     GstTracerHookPadUnlinkPost, (GST_TRACER_ARGS, srcpad, sinkpad, result)); \
 556 }G_STMT_END
 557
 558 #else /* !GST_DISABLE_GST_TRACER_HOOKS */
 559
 560 #define GST_TRACER_PAD_PUSH_PRE(pad, buffer)
 561 #define GST_TRACER_PAD_PUSH_POST(pad, res)
 562 #define GST_TRACER_PAD_PUSH_LIST_PRE(pad, list)
 563 #define GST_TRACER_PAD_PUSH_LIST_POST(pad, res)
 564 #define GST_TRACER_PAD_PULL_RANGE_PRE(pad, offset, size)
 565 #define GST_TRACER_PAD_PULL_RANGE_POST(pad, buffer, res)
 566 #define GST_TRACER_PAD_PUSH_EVENT_PRE(pad, event)
 567 #define GST_TRACER_PAD_PUSH_EVENT_POST(pad, res)
 568 #define GST_TRACER_PAD_QUERY_PRE(pad, query)
 569 #define GST_TRACER_PAD_QUERY_POST(pad, query, res)
 570 #define GST_TRACER_ELEMENT_POST_MESSAGE_PRE(element, message)
 571 #define GST_TRACER_ELEMENT_POST_MESSAGE_POST(element, res)
 572 #define GST_TRACER_ELEMENT_QUERY_PRE(element, query)
 573 #define GST_TRACER_ELEMENT_QUERY_POST(element, query, res)
 574 #define GST_TRACER_ELEMENT_NEW(element)
 575 #define GST_TRACER_ELEMENT_ADD_PAD(element, pad)
 576 #define GST_TRACER_ELEMENT_REMOVE_PAD(element, pad)
 577 #define GST_TRACER_ELEMENT_CHANGE_STATE_PRE(element, transition)
 578 #define GST_TRACER_ELEMENT_CHANGE_STATE_POST(element, transition, res)
 579 #define GST_TRACER_BIN_ADD_PRE(bin, element)
 580 #define GST_TRACER_BIN_ADD_POST(bin, element, res)
 581 #define GST_TRACER_BIN_REMOVE_PRE(bin, element)
 582 #define GST_TRACER_BIN_REMOVE_POST(bin, res)
 583 #define GST_TRACER_PAD_LINK_PRE(srcpad, sinkpad)
 584 #define GST_TRACER_PAD_LINK_POST(srcpad, sinkpad, res)
 585 #define GST_TRACER_PAD_UNLINK_PRE(srcpad, sinkpad)
 586 #define GST_TRACER_PAD_UNLINK_POST(srcpad, sinkpad, res)
 587
 588 #endif /* GST_DISABLE_GST_TRACER_HOOKS */
 589
 590 G_END_DECLS
 591
 592 #endif /* __GST_TRACER_UTILS_H__ */
 593