mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-06-09 01:29:28 +00:00
142 lines
3 KiB
C
142 lines
3 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 "gstlog.h"
|
|
#include "gstprobe.h"
|
|
|
|
|
|
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;
|
|
|
|
return probe;
|
|
}
|
|
|
|
void
|
|
gst_probe_destroy (GstProbe *probe)
|
|
{
|
|
g_return_if_fail (probe);
|
|
|
|
g_free (probe);
|
|
}
|
|
|
|
gboolean
|
|
gst_probe_perform (GstProbe *probe, GstData *data)
|
|
{
|
|
gboolean res = TRUE;
|
|
|
|
g_return_val_if_fail (probe, res);
|
|
|
|
if (probe->callback)
|
|
res = probe->callback (probe, data, probe->user_data);
|
|
|
|
return res;
|
|
}
|
|
|
|
GstProbeDispatcher*
|
|
gst_probe_dispatcher_new (void)
|
|
{
|
|
GstProbeDispatcher *disp;
|
|
|
|
disp = g_new0 (GstProbeDispatcher, 1);
|
|
|
|
gst_probe_dispatcher_init (disp);
|
|
|
|
return disp;
|
|
}
|
|
|
|
void
|
|
gst_probe_dispatcher_destroy (GstProbeDispatcher *disp)
|
|
{
|
|
}
|
|
|
|
void
|
|
gst_probe_dispatcher_init (GstProbeDispatcher *disp)
|
|
{
|
|
g_return_if_fail (disp);
|
|
|
|
disp->active = TRUE;
|
|
disp->probes = NULL;
|
|
}
|
|
|
|
void
|
|
gst_probe_dispatcher_set_active (GstProbeDispatcher *disp, gboolean active)
|
|
{
|
|
g_return_if_fail (disp);
|
|
|
|
disp->active = active;
|
|
}
|
|
|
|
void
|
|
gst_probe_dispatcher_add_probe (GstProbeDispatcher *disp, GstProbe *probe)
|
|
{
|
|
g_return_if_fail (disp);
|
|
g_return_if_fail (probe);
|
|
|
|
disp->probes = g_slist_prepend (disp->probes, probe);
|
|
}
|
|
|
|
void
|
|
gst_probe_dispatcher_remove_probe (GstProbeDispatcher *disp, GstProbe *probe)
|
|
{
|
|
g_return_if_fail (disp);
|
|
g_return_if_fail (probe);
|
|
|
|
disp->probes = g_slist_remove (disp->probes, probe);
|
|
}
|
|
|
|
gboolean
|
|
gst_probe_dispatcher_dispatch (GstProbeDispatcher *disp, GstData *data)
|
|
{
|
|
GSList *walk;
|
|
gboolean res = TRUE;
|
|
|
|
g_return_val_if_fail (disp, res);
|
|
|
|
walk = disp->probes;
|
|
while (walk) {
|
|
GstProbe *probe = (GstProbe *) walk->data;
|
|
walk = g_slist_next (walk);
|
|
|
|
res &= gst_probe_perform (probe, data);
|
|
if (probe->single_shot) {
|
|
disp->probes = g_slist_remove (disp->probes, probe);
|
|
|
|
gst_probe_destroy (probe);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|