Functions

gst_tracing_get_active_tracers 

GList *
gst_tracing_get_active_tracers ()

Get a list of all active tracer objects owned by the tracing framework for the entirety of the run-time of the process or till gst_deinit is called.

Returns ( [transfer: full][element-typeGst.Tracer]) –

A GList of GstTracer objects

Since : 1.18

Gst.prototype.tracing_get_active_tracers 

function Gst.prototype.tracing_get_active_tracers(): {
    // javascript wrapper for 'gst_tracing_get_active_tracers'
}

Get a list of all active tracer objects owned by the tracing framework for the entirety of the run-time of the process or till Gst.prototype.deinit is called.

Returns ([ Gst.Tracer ]) –

A GLib.List of Gst.Tracer objects

Since : 1.18

Gst.tracing_get_active_tracers 

def Gst.tracing_get_active_tracers ():
    #python wrapper for 'gst_tracing_get_active_tracers'

Get a list of all active tracer objects owned by the tracing framework for the entirety of the run-time of the process or till Gst.deinit is called.

Returns ([ Gst.Tracer ]) –

A GLib.List of Gst.Tracer objects

Since : 1.18

gst_tracing_register_hook 

gst_tracing_register_hook (GstTracer * tracer,
                           const gchar * detail,
                           GCallback func)

Register func to be called when the trace hook detail is getting invoked. Use NULL for detail to register to all hooks.

Parameters:

tracer –

the tracer

detail –

the detailed hook

func ( [scope async]) –

the callback

Since : 1.8

Gst.prototype.tracing_register_hook 

function Gst.prototype.tracing_register_hook(tracer: Gst.Tracer, detail: String, func: GObject.Callback): {
    // javascript wrapper for 'gst_tracing_register_hook'
}

Register func to be called when the trace hook detail is getting invoked. Use null for detail to register to all hooks.

Parameters:

tracer (Gst.Tracer) –

the tracer

detail (String) –

the detailed hook

func (GObject.Callback) –

the callback

Since : 1.8

Gst.tracing_register_hook 

def Gst.tracing_register_hook (tracer, detail, func):
    #python wrapper for 'gst_tracing_register_hook'

Register func to be called when the trace hook detail is getting invoked. Use None for detail to register to all hooks.

Parameters:

tracer (Gst.Tracer) –

the tracer

detail (str) –

the detailed hook

func (GObject.Callback) –

the callback

Since : 1.8

Function Macros

GST_TRACER_BIN_ADD_POST 

#define GST_TRACER_BIN_ADD_POST(bin, element, result) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_ADD_POST), \
    GstTracerHookBinAddPost, (GST_TRACER_ARGS, bin, element, result)); \
}G_STMT_END

GST_TRACER_BIN_ADD_PRE 

#define GST_TRACER_BIN_ADD_PRE(bin, element) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_ADD_PRE), \
    GstTracerHookBinAddPre, (GST_TRACER_ARGS, bin, element)); \
}G_STMT_END

GST_TRACER_BIN_REMOVE_POST 

#define GST_TRACER_BIN_REMOVE_POST(bin, result) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_REMOVE_POST), \
    GstTracerHookBinRemovePost, (GST_TRACER_ARGS, bin, result)); \
}G_STMT_END

GST_TRACER_BIN_REMOVE_PRE 

#define GST_TRACER_BIN_REMOVE_PRE(bin, element) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_BIN_REMOVE_PRE), \
    GstTracerHookBinRemovePre, (GST_TRACER_ARGS, bin, element)); \
}G_STMT_END

GST_TRACER_DISPATCH 

#define GST_TRACER_DISPATCH(key,type,args) G_STMT_START{ \
  if (GST_TRACER_IS_ENABLED) {                                         \
    GstClockTime ts = GST_TRACER_TS;                                   \
    GList *__l, *__n;                                                  \
    GstTracerHook *h;                                                  \
    __l = g_hash_table_lookup (_priv_tracers, GINT_TO_POINTER (key));  \
    for (__n = __l; __n; __n = g_list_next (__n)) {                    \
      h = (GstTracerHook *) __n->data;                                 \
      ((type)(h->func)) args;                                          \
    }                                                                  \
    __l = g_hash_table_lookup (_priv_tracers, NULL);                   \
    for (__n = __l; __n; __n = g_list_next (__n)) {                    \
      h = (GstTracerHook *) __n->data;                                 \
      ((type)(h->func)) args;                                          \
    }                                                                  \
  }                                                                    \
}G_STMT_END

GST_TRACER_ELEMENT_ADD_PAD 

#define GST_TRACER_ELEMENT_ADD_PAD(element, pad) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_ADD_PAD), \
    GstTracerHookElementAddPad, (GST_TRACER_ARGS, element, pad)); \
}G_STMT_END

GST_TRACER_ELEMENT_CHANGE_STATE_POST 

#define GST_TRACER_ELEMENT_CHANGE_STATE_POST(element, transition, result) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_CHANGE_STATE_POST), \
    GstTracerHookElementChangeStatePost, (GST_TRACER_ARGS, element, transition, result)); \
}G_STMT_END

GST_TRACER_ELEMENT_CHANGE_STATE_PRE 

#define GST_TRACER_ELEMENT_CHANGE_STATE_PRE(element, transition) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_CHANGE_STATE_PRE), \
    GstTracerHookElementChangeStatePre, (GST_TRACER_ARGS, element, transition)); \
}G_STMT_END

GST_TRACER_ELEMENT_NEW 

#define GST_TRACER_ELEMENT_NEW(element) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_NEW), \
    GstTracerHookElementNew, (GST_TRACER_ARGS, element)); \
}G_STMT_END

GST_TRACER_ELEMENT_POST_MESSAGE_POST 

#define GST_TRACER_ELEMENT_POST_MESSAGE_POST(element, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_POST), \
    GstTracerHookElementPostMessagePost, (GST_TRACER_ARGS, element, res)); \
}G_STMT_END

GST_TRACER_ELEMENT_POST_MESSAGE_PRE 

#define GST_TRACER_ELEMENT_POST_MESSAGE_PRE(element, message) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_PRE), \
    GstTracerHookElementPostMessagePre, (GST_TRACER_ARGS, element, message)); \
}G_STMT_END

GST_TRACER_ELEMENT_QUERY_POST 

#define GST_TRACER_ELEMENT_QUERY_POST(element, query, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_POST), \
    GstTracerHookElementQueryPost, (GST_TRACER_ARGS, element, query, res)); \
}G_STMT_END

GST_TRACER_ELEMENT_QUERY_PRE 

#define GST_TRACER_ELEMENT_QUERY_PRE(element, query) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_PRE), \
    GstTracerHookElementQueryPre, (GST_TRACER_ARGS, element, query)); \
}G_STMT_END

GST_TRACER_ELEMENT_REMOVE_PAD 

#define GST_TRACER_ELEMENT_REMOVE_PAD(element, pad) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_ELEMENT_REMOVE_PAD), \
    GstTracerHookElementRemovePad, (GST_TRACER_ARGS, element, pad)); \
}G_STMT_END

GST_TRACER_MINI_OBJECT_CREATED 

#define GST_TRACER_MINI_OBJECT_CREATED(object) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_MINI_OBJECT_CREATED), \
    GstTracerHookMiniObjectCreated, (GST_TRACER_ARGS, object)); \
}G_STMT_END

GST_TRACER_MINI_OBJECT_DESTROYED 

#define GST_TRACER_MINI_OBJECT_DESTROYED(object) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_MINI_OBJECT_DESTROYED), \
    GstTracerHookMiniObjectDestroyed, (GST_TRACER_ARGS, object)); \
}G_STMT_END

GST_TRACER_MINI_OBJECT_REFFED 

#define GST_TRACER_MINI_OBJECT_REFFED(object, new_refcount) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_MINI_OBJECT_REFFED), \
    GstTracerHookMiniObjectReffed, (GST_TRACER_ARGS, object, new_refcount)); \
}G_STMT_END

GST_TRACER_MINI_OBJECT_UNREFFED 

#define GST_TRACER_MINI_OBJECT_UNREFFED(object, new_refcount) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_MINI_OBJECT_UNREFFED), \
    GstTracerHookMiniObjectUnreffed, (GST_TRACER_ARGS, object, new_refcount)); \
}G_STMT_END

GST_TRACER_OBJECT_CREATED 

#define GST_TRACER_OBJECT_CREATED(object) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_OBJECT_CREATED), \
    GstTracerHookObjectCreated, (GST_TRACER_ARGS, object)); \
}G_STMT_END

GST_TRACER_OBJECT_DESTROYED 

#define GST_TRACER_OBJECT_DESTROYED(object) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_OBJECT_DESTROYED), \
    GstTracerHookObjectDestroyed, (GST_TRACER_ARGS, object)); \
}G_STMT_END

GST_TRACER_OBJECT_REFFED 

#define GST_TRACER_OBJECT_REFFED(object, new_refcount) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_OBJECT_REFFED), \
    GstTracerHookObjectReffed, (GST_TRACER_ARGS, object, new_refcount)); \
}G_STMT_END

GST_TRACER_OBJECT_UNREFFED 

#define GST_TRACER_OBJECT_UNREFFED(object, new_refcount) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_OBJECT_UNREFFED), \
    GstTracerHookObjectUnreffed, (GST_TRACER_ARGS, object, new_refcount)); \
}G_STMT_END

GST_TRACER_PAD_CHAIN_LIST_POST 

#define GST_TRACER_PAD_CHAIN_LIST_POST(pad, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_CHAIN_LIST_POST), \
    GstTracerHookPadChainListPost, (GST_TRACER_ARGS, pad, res)); \
}G_STMT_END

Dispatches the "pad-chain-list-post" hook.

Parameters:

pad –

a GstPad

res –

a GstFlowReturn

Since : 1.22

GST_TRACER_PAD_CHAIN_LIST_PRE 

#define GST_TRACER_PAD_CHAIN_LIST_PRE(pad, list) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_CHAIN_LIST_PRE), \
    GstTracerHookPadChainListPre, (GST_TRACER_ARGS, pad, list)); \
}G_STMT_END

Dispatches the "pad-chain-list-pre" hook.

Parameters:

pad –

a GstPad

list –

a GstBufferList

Since : 1.22

GST_TRACER_PAD_CHAIN_POST 

#define GST_TRACER_PAD_CHAIN_POST(pad, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_CHAIN_POST), \
    GstTracerHookPadChainPost, (GST_TRACER_ARGS, pad, res)); \
}G_STMT_END

Dispatches the "pad-chain-post" hook.

Parameters:

pad –

a GstPad

res –

a GstFlowReturn

Since : 1.22

GST_TRACER_PAD_CHAIN_PRE 

#define GST_TRACER_PAD_CHAIN_PRE(pad, buffer) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_CHAIN_PRE), \
    GstTracerHookPadChainPre, (GST_TRACER_ARGS, pad, buffer)); \
}G_STMT_END

Dispatches the "pad-chain-pre" hook.

Parameters:

pad –

a GstPad

buffer –

a GstBuffer

Since : 1.22

GST_TRACER_PAD_LINK_POST 

#define GST_TRACER_PAD_LINK_POST(srcpad, sinkpad, result) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_LINK_POST), \
    GstTracerHookPadLinkPost, (GST_TRACER_ARGS, srcpad, sinkpad, result)); \
}G_STMT_END

GST_TRACER_PAD_PULL_RANGE_POST 

#define GST_TRACER_PAD_PULL_RANGE_POST(pad, buffer, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_POST), \
    GstTracerHookPadPullRangePost, (GST_TRACER_ARGS, pad, buffer, res)); \
}G_STMT_END

GST_TRACER_PAD_PULL_RANGE_PRE 

#define GST_TRACER_PAD_PULL_RANGE_PRE(pad, offset, size) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_PRE), \
    GstTracerHookPadPullRangePre, (GST_TRACER_ARGS, pad, offset, size)); \
}G_STMT_END

GST_TRACER_PAD_PUSH_EVENT_POST 

#define GST_TRACER_PAD_PUSH_EVENT_POST(pad, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_POST), \
    GstTracerHookPadPushEventPost, (GST_TRACER_ARGS, pad, res)); \
}G_STMT_END

GST_TRACER_PAD_PUSH_EVENT_PRE 

#define GST_TRACER_PAD_PUSH_EVENT_PRE(pad, event) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_PRE), \
    GstTracerHookPadPushEventPre, (GST_TRACER_ARGS, pad, event)); \
}G_STMT_END

GST_TRACER_PAD_PUSH_LIST_POST 

#define GST_TRACER_PAD_PUSH_LIST_POST(pad, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_POST), \
    GstTracerHookPadPushListPost, (GST_TRACER_ARGS, pad, res)); \
}G_STMT_END

GST_TRACER_PAD_PUSH_LIST_PRE 

#define GST_TRACER_PAD_PUSH_LIST_PRE(pad, list) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_PRE), \
    GstTracerHookPadPushListPre, (GST_TRACER_ARGS, pad, list)); \
}G_STMT_END

GST_TRACER_PAD_PUSH_POST 

#define GST_TRACER_PAD_PUSH_POST(pad, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_POST), \
    GstTracerHookPadPushPost, (GST_TRACER_ARGS, pad, res)); \
}G_STMT_END

GST_TRACER_PAD_PUSH_PRE 

#define GST_TRACER_PAD_PUSH_PRE(pad, buffer) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_PUSH_PRE), \
    GstTracerHookPadPushPre, (GST_TRACER_ARGS, pad, buffer)); \
}G_STMT_END

GST_TRACER_PAD_QUERY_POST 

#define GST_TRACER_PAD_QUERY_POST(pad, query, res) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_QUERY_POST), \
    GstTracerHookPadQueryPost, (GST_TRACER_ARGS, pad, query, res)); \
}G_STMT_END

GST_TRACER_PAD_QUERY_PRE 

#define GST_TRACER_PAD_QUERY_PRE(pad, query) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_QUERY_PRE), \
    GstTracerHookPadQueryPre, (GST_TRACER_ARGS, pad, query)); \
}G_STMT_END

GST_TRACER_PAD_UNLINK_POST 

#define GST_TRACER_PAD_UNLINK_POST(srcpad, sinkpad, result) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PAD_UNLINK_POST), \
    GstTracerHookPadUnlinkPost, (GST_TRACER_ARGS, srcpad, sinkpad, result)); \
}G_STMT_END

GST_TRACER_PLUGIN_FEATURE_LOADED 

#define GST_TRACER_PLUGIN_FEATURE_LOADED(feature) G_STMT_START{ \
  GST_TRACER_DISPATCH(GST_TRACER_QUARK(HOOK_PLUGIN_FEATURE_LOADED), \
    GstTracerHookPluginFeatureLoaded, (GST_TRACER_ARGS, feature)); \
}G_STMT_END

Add a tracepoint when a plugin feature is loaded.

Parameters:

feature –

The feature that this tracer is called for

Since : 1.20

GST_TRACER_QUARK 

#define GST_TRACER_QUARK(q) _priv_gst_tracer_quark_table[GST_TRACER_QUARK_##q]

Constants

GST_TRACER_ARGS 

#define GST_TRACER_ARGS h->tracer, ts

GST_TRACER_IS_ENABLED 

#define GST_TRACER_IS_ENABLED (_priv_tracer_enabled)

GST_TRACER_TS 

#define GST_TRACER_TS \
  GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ())

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