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4fefa734d6
Original commit message from CVS: s/Dparam/DParam/ <taaz> i'll whine about an irrelevant thing: Dparam vs DParam. though Dparam is more consistantly screwed up with everything else ;)
138 lines
5.2 KiB
C
138 lines
5.2 KiB
C
/* GStreamer
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* Copyright (C) 2001 Steve Baker <stevebaker_org@yahoo.co.uk>
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*
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* gstdparammanager.h: Dynamic Parameter group functionality
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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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#ifndef __GST_DPMAN_H__
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#define __GST_DPMAN_H__
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#include <gst/gstobject.h>
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#include <gst/gstdparam.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_DPMAN (gst_dpman_get_type ())
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#define GST_DPMAN(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DPMAN,GstDParamManager))
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#define GST_DPMAN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DPMAN,GstDParamManager))
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#define GST_IS_DPMAN(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DPMAN))
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#define GST_IS_DPMAN_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DPMAN))
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#define GST_DPMAN_NAME(dpman) (GST_OBJECT_NAME(dpman))
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#define GST_DPMAN_PARENT(dpman) (GST_OBJECT_PARENT(dpman))
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#define GST_DPMAN_DPARAMS(dpman) ((dpman)->dparams)
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#define GST_DPMAN_DPARAMS_LIST(dpman) ((dpman)->dparams_list)
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#define GST_DPMAN_MODE_NAME(dpman) ((dpman)->mode_name)
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#define GST_DPMAN_MODE(dpman) ((dpman)->mode)
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#define GST_DPMAN_MODE_DATA(dpman) ((dpman)->mode_data)
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#define GST_DPMAN_RATE(dpman) ((dpman)->rate)
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typedef struct _GstDParamManager GstDParamManager;
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typedef struct _GstDParamManagerClass GstDParamManagerClass;
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typedef struct _GstDpmMode GstDpmMode;
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typedef struct _GstDParamWrapper GstDParamWrapper;
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typedef guint (*GstDpmModeFirstCountdownFunction) (GstDParamManager *dpman, guint frames, gint64 timestamp);
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typedef guint (*GstDpmModeCountdownFunction) (GstDParamManager *dpman, guint frame_count);
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typedef void (*GstDpmModeSetupFunction) (GstDParamManager *dpman);
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typedef void (*GstDpmModeTeardownFunction) (GstDParamManager *dpman);
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typedef void (*GstDpmUpdateFunction) (GValue *value, gpointer data);
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struct _GstDParamManager {
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GstObject object;
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GHashTable *dparams;
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GSList *dparams_list;
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gchar *mode_name;
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GstDpmMode* mode;
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gpointer mode_data;
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gint64 timestamp;
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guint rate;
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};
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struct _GstDParamManagerClass {
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GstObjectClass parent_class;
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GHashTable *modes;
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/* signal callbacks */
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};
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struct _GstDpmMode {
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GstDpmModeFirstCountdownFunction firstcountdownfunc;
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GstDpmModeCountdownFunction countdownfunc;
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GstDpmModeSetupFunction setupfunc;
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GstDpmModeTeardownFunction teardownfunc;
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};
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struct _GstDParamWrapper {
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gchar *dparam_name;
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GValue *value;
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GstDParam *dparam;
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GstDpmUpdateFunction update_func;
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gpointer update_data;
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};
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#define GST_DPMAN_FIRST_COUNTDOWNFUNC(dpman) (((dpman)->mode)->firstcountdownfunc)
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#define GST_DPMAN_COUNTDOWNFUNC(dpman) (((dpman)->mode)->countdownfunc)
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#define GST_DPMAN_SETUPFUNC(dpman) (((dpman)->mode)->setupfunc)
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#define GST_DPMAN_TEARDOWNFUNC(dpman) (((dpman)->mode)->teardownfunc)
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#define GST_DPMAN_FIRST_COUNTDOWN(dpman, buffer_size, timestamp) \
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(GST_DPMAN_FIRST_COUNTDOWNFUNC(dpman)(dpman, buffer_size, timestamp))
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#define GST_DPMAN_COUNTDOWN(dpman, frame_countdown, frame_count) \
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(frame_countdown-- || \
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(frame_countdown = GST_DPMAN_COUNTDOWNFUNC(dpman)(dpman, frame_count)))
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#define GST_DPMAN_DO_UPDATE(dpwrap) ((dpwrap->update_func)(dpwrap->value, dpwrap->update_data))
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GType gst_dpman_get_type (void);
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GstDParamManager* gst_dpman_new (gchar *name, GstElement *parent);
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void gst_dpman_set_parent (GstDParamManager *dpman, GstElement *parent);
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gboolean gst_dpman_add_required_dparam (GstDParamManager *dpman,
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gchar *dparam_name,
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GType type,
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GstDpmUpdateFunction update_func,
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gpointer update_data);
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void gst_dpman_remove_required_dparam (GstDParamManager *dpman, gchar *dparam_name);
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gboolean gst_dpman_attach_dparam (GstDParamManager *dpman, gchar *dparam_name, GstDParam *dparam);
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void gst_dpman_dettach_dparam (GstDParamManager *dpman, gchar *dparam_name);
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GstDParam* gst_dpman_get_dparam(GstDParamManager *dpman, gchar *name);
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void gst_dpman_set_rate_change_pad(GstDParamManager *dpman, GstPad *pad);
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gboolean gst_dpman_set_mode(GstDParamManager *dpman, gchar *modename);
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void gst_dpman_register_mode (GstDParamManagerClass *klass,
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gchar *modename,
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GstDpmModeFirstCountdownFunction firstcountdownfunc,
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GstDpmModeCountdownFunction countdownfunc,
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GstDpmModeSetupFunction setupfunc,
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GstDpmModeTeardownFunction teardownfunc);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_DPMAN_H__ */
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