gstreamer/gst/gstprobe.c
David Schleef e134f7f75b check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00

266 lines
6.2 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstprobe.h: Header for GstProbe object
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gst_private.h"
#include "gstprobe.h"
static GstProbe *
_gst_probe_copy (const GstProbe * src)
{
return gst_probe_new (src->single_shot, src->callback, src->user_data);
}
GType
gst_probe_get_type (void)
{
static GType gst_probe_type = 0;
if (!gst_probe_type) {
gst_probe_type = g_boxed_type_register_static ("GstProbe",
(GBoxedCopyFunc) _gst_probe_copy, (GBoxedFreeFunc) gst_probe_destroy);
}
return gst_probe_type;
}
/**
* gst_probe_new:
* @single_shot: TRUE if a single shot probe is required
* @callback: the function to call when the probe is triggered
* @user_data: data passed to the callback function
*
* Create a new probe with the specified parameters. The single shot
* probe will be fired only once. It is the responsability of the
* application to free the single probe after it has been fired.
*
* Returns: a new #GstProbe.
*/
GstProbe *
gst_probe_new (gboolean single_shot,
GstProbeCallback callback, gpointer user_data)
{
GstProbe *probe;
g_return_val_if_fail (callback, NULL);
probe = g_new0 (GstProbe, 1);
probe->single_shot = single_shot;
probe->callback = callback;
probe->user_data = user_data;
GST_CAT_DEBUG (GST_CAT_PROBE, "created probe %p", probe);
return probe;
}
/**
* gst_probe_destroy:
* @probe: The probe to destroy
*
* Free the memory associated with the probe.
*/
void
gst_probe_destroy (GstProbe * probe)
{
g_return_if_fail (probe);
#ifdef USE_POISONING
memset (probe, 0xff, sizeof (*probe));
#endif
g_free (probe);
}
/**
* gst_probe_perform:
* @probe: The probe to trigger
* @mini_object: the GstMiniObject that triggered the probe.
*
* Perform the callback associated with the given probe.
*
* Returns: the result of the probe callback function.
*/
gboolean
gst_probe_perform (GstProbe * probe, GstMiniObject ** mini_object)
{
gboolean res = TRUE;
g_return_val_if_fail (probe, res);
GST_CAT_DEBUG (GST_CAT_PROBE, "performing probe %p", probe);
if (probe->callback)
res = probe->callback (probe, mini_object, probe->user_data);
return res;
}
/**
* gst_probe_dispatcher_new:
*
* Create a new probe dispatcher
*
* Returns: a new probe dispatcher.
*/
GstProbeDispatcher *
gst_probe_dispatcher_new (void)
{
GstProbeDispatcher *disp;
disp = g_new0 (GstProbeDispatcher, 1);
gst_probe_dispatcher_init (disp);
return disp;
}
/**
* gst_probe_dispatcher_destroy:
* @disp: the dispatcher to destroy
*
* Free the memory allocated by the probe dispatcher. All pending
* probes are removed first.
*/
void
gst_probe_dispatcher_destroy (GstProbeDispatcher * disp)
{
g_return_if_fail (disp);
#ifdef USE_POISONING
memset (disp, 0xff, sizeof (*disp));
#endif
/* FIXME, free pending probes */
g_free (disp);
}
/**
* gst_probe_dispatcher_init:
* @disp: the dispatcher to initialize
*
* Initialize the dispatcher. Useful for statically allocated probe
* dispatchers.
*/
void
gst_probe_dispatcher_init (GstProbeDispatcher * disp)
{
g_return_if_fail (disp);
disp->active = TRUE;
disp->probes = NULL;
}
/**
* gst_probe_dispatcher_set_active:
* @disp: the dispatcher to activate
* @active: boolean to indicate activation or deactivation
*
* Activate or deactivate the given dispatcher
* dispatchers.
*/
void
gst_probe_dispatcher_set_active (GstProbeDispatcher * disp, gboolean active)
{
g_return_if_fail (disp);
disp->active = active;
}
/**
* gst_probe_dispatcher_add_probe:
* @disp: the dispatcher to add the probe to
* @probe: the probe to add to the dispatcher
*
* Adds the given probe to the dispatcher.
*/
void
gst_probe_dispatcher_add_probe (GstProbeDispatcher * disp, GstProbe * probe)
{
g_return_if_fail (disp);
g_return_if_fail (probe);
GST_CAT_DEBUG (GST_CAT_PROBE, "adding probe %p to dispatcher %p", probe,
disp);
disp->probes = g_slist_prepend (disp->probes, probe);
}
/**
* gst_probe_dispatcher_remove_probe:
* @disp: the dispatcher to remove the probe from
* @probe: the probe to remove from the dispatcher
*
* Removes the given probe from the dispatcher.
*/
void
gst_probe_dispatcher_remove_probe (GstProbeDispatcher * disp, GstProbe * probe)
{
g_return_if_fail (disp);
g_return_if_fail (probe);
GST_CAT_DEBUG (GST_CAT_PROBE, "removing probe %p from dispatcher %p",
probe, disp);
disp->probes = g_slist_remove (disp->probes, probe);
}
/**
* gst_probe_dispatcher_dispatch:
* @disp: the dispatcher to dispatch
* @data: the data that triggered the dispatch
*
* Trigger all registered probes on the given dispatcher.
*
* Returns: TRUE if all callbacks returned TRUE.
*/
gboolean
gst_probe_dispatcher_dispatch (GstProbeDispatcher * disp, GstMiniObject ** data)
{
GSList *walk;
gboolean res = TRUE;
g_return_val_if_fail (disp, res);
GST_CAT_DEBUG (GST_CAT_PROBE, "dispatching data %p on dispatcher %p",
*data, disp);
walk = disp->probes;
while (walk) {
GstProbe *probe = (GstProbe *) walk->data;
walk = g_slist_next (walk);
res &= gst_probe_perform (probe, data);
/* it might have disappeared in the callback */
if (disp->active &&
g_slist_find (disp->probes, probe) && probe->single_shot) {
disp->probes = g_slist_remove (disp->probes, probe);
/* do not free the probe here as it cannot be made threadsafe */
//gst_probe_destroy (probe);
}
}
return res;
}