Commit cc59aa17 authored by Wim Taymans's avatar Wim Taymans
Browse files

Added first stab at probes.

Original commit message from CVS:
Added first stab at probes.
parent e00fef2c
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstpad.h: Header for GstPad 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;
}
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstpad.h: Header for GstPad 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.
*/
#ifndef __GST_PROBE_H__
#define __GST_PROBE_H__
#include <glib.h>
#include <gst/gstdata.h>
G_BEGIN_DECLS
typedef struct _GstProbe GstProbe;
/* the callback should return FALSE if the data should be discarded */
typedef gboolean (*GstProbeCallback) (GstProbe *probe,
GstData *data,
gpointer user_data);
struct _GstProbe {
gboolean single_shot;
GstProbeCallback callback;
gpointer user_data;
};
GstProbe* gst_pad_probe_new (gboolean single_shot,
GstProbeCallback callback,
gpointer user_data);
void gst_pad_probe_destroy (GstProbe *probe);
gboolean gst_pad_probe_perform (GstProbe *probe, GstData *data);
typedef struct _GstProbeDispatcher GstProbeDispatcher;
struct _GstProbeDispatcher {
gboolean active;
GSList *probes;
};
GstProbeDispatcher* gst_probe_dispatcher_new (void);
void gst_probe_dispatcher_destroy (GstProbeDispatcher *disp);
void gst_probe_dispatcher_init (GstProbeDispatcher *disp);
void gst_probe_dispatcher_set_active (GstProbeDispatcher *disp, gboolean active);
void gst_probe_dispatcher_add_probe (GstProbeDispatcher *disp, GstProbe *probe);
void gst_probe_dispatcher_remove_probe (GstProbeDispatcher *disp, GstProbe *probe);
gboolean gst_probe_dispatcher_dispatch (GstProbeDispatcher *disp, GstData *data);
G_END_DECLS
#endif /* __GST_PAD_H__ */
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