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141 lines
3 KiB
C
141 lines
3 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wim.taymans@chello.be>
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*
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* gstpad.h: Header for GstPad object
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gstlog.h"
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#include "gstprobe.h"
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GstProbe*
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gst_probe_new (gboolean single_shot,
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GstProbeCallback callback,
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gpointer user_data)
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{
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GstProbe *probe;
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g_return_val_if_fail (callback, NULL);
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probe = g_new0 (GstProbe, 1);
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probe->single_shot = single_shot;
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probe->callback = callback;
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probe->user_data = user_data;
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return probe;
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}
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void
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gst_probe_destroy (GstProbe *probe)
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{
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g_return_if_fail (probe);
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g_free (probe);
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}
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gboolean
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gst_probe_perform (GstProbe *probe, GstData *data)
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{
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gboolean res = TRUE;
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g_return_val_if_fail (probe, res);
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if (probe->callback)
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res = probe->callback (probe, data, probe->user_data);
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return res;
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}
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GstProbeDispatcher*
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gst_probe_dispatcher_new (void)
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{
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GstProbeDispatcher *disp;
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disp = g_new0 (GstProbeDispatcher, 1);
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gst_probe_dispatcher_init (disp);
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return disp;
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}
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void
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gst_probe_dispatcher_destroy (GstProbeDispatcher *disp)
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{
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}
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void
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gst_probe_dispatcher_init (GstProbeDispatcher *disp)
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{
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g_return_if_fail (disp);
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disp->active = TRUE;
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disp->probes = NULL;
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}
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void
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gst_probe_dispatcher_set_active (GstProbeDispatcher *disp, gboolean active)
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{
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g_return_if_fail (disp);
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disp->active = active;
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}
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void
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gst_probe_dispatcher_add_probe (GstProbeDispatcher *disp, GstProbe *probe)
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{
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g_return_if_fail (disp);
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g_return_if_fail (probe);
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disp->probes = g_slist_prepend (disp->probes, probe);
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}
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void
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gst_probe_dispatcher_remove_probe (GstProbeDispatcher *disp, GstProbe *probe)
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{
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g_return_if_fail (disp);
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g_return_if_fail (probe);
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disp->probes = g_slist_remove (disp->probes, probe);
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}
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gboolean
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gst_probe_dispatcher_dispatch (GstProbeDispatcher *disp, GstData *data)
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{
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GSList *walk;
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gboolean res = TRUE;
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g_return_val_if_fail (disp, res);
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walk = disp->probes;
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while (walk) {
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GstProbe *probe = (GstProbe *) walk->data;
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walk = g_slist_next (walk);
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res &= gst_probe_perform (probe, data);
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if (probe->single_shot) {
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disp->probes = g_slist_remove (disp->probes, probe);
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gst_probe_destroy (probe);
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}
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}
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return res;
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}
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