gstreamer/libs/gst/base/gstadapter.h
Mark Nauwelaerts d5ed339f20 adapter: add extended masked_scan_uint32_peek that also provides matching value
Also add to .def and docs.

Fixes #619828.

API: gst_adapter_masked_scan_uint32_peek
2010-06-14 15:09:38 +02:00

106 lines
3.8 KiB
C

/* GStreamer
* Copyright (C) 2004 Benjamin Otte <otte@gnome.org>
*
* 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/gst.h>
#ifndef __GST_ADAPTER_H__
#define __GST_ADAPTER_H__
G_BEGIN_DECLS
#define GST_TYPE_ADAPTER \
(gst_adapter_get_type())
#define GST_ADAPTER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_ADAPTER, GstAdapter))
#define GST_ADAPTER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_ADAPTER, GstAdapterClass))
#define GST_ADAPTER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_ADAPTER, GstAdapterClass))
#define GST_IS_ADAPTER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_ADAPTER))
#define GST_IS_ADAPTER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_ADAPTER))
typedef struct _GstAdapter GstAdapter;
typedef struct _GstAdapterClass GstAdapterClass;
typedef struct _GstAdapterPrivate GstAdapterPrivate;
/**
* GstAdapter:
* @object: the parent object.
*
* The opaque #GstAdapter data structure.
*/
struct _GstAdapter {
GObject object;
/*< private >*/
GSList * buflist;
guint size;
guint skip;
/* we keep state of assembled pieces */
guint8 * assembled_data;
guint assembled_size;
guint assembled_len;
/* ABI added */
/* Remember where the end of our buffer list is to
* speed up the push */
GSList *buflist_end;
GstAdapterPrivate *priv;
gpointer _gst_reserved[GST_PADDING - 2];
};
struct _GstAdapterClass {
GObjectClass parent_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GType gst_adapter_get_type (void);
GstAdapter * gst_adapter_new (void);
void gst_adapter_clear (GstAdapter *adapter);
void gst_adapter_push (GstAdapter *adapter, GstBuffer* buf);
const guint8 * gst_adapter_peek (GstAdapter *adapter, guint size);
void gst_adapter_copy (GstAdapter *adapter, guint8 *dest,
guint offset, guint size);
void gst_adapter_flush (GstAdapter *adapter, guint flush);
guint8* gst_adapter_take (GstAdapter *adapter, guint nbytes);
GstBuffer* gst_adapter_take_buffer (GstAdapter *adapter, guint nbytes);
guint gst_adapter_available (GstAdapter *adapter);
guint gst_adapter_available_fast (GstAdapter *adapter);
GstClockTime gst_adapter_prev_timestamp (GstAdapter *adapter, guint64 *distance);
guint gst_adapter_masked_scan_uint32 (GstAdapter * adapter, guint32 mask,
guint32 pattern, guint offset, guint size);
guint gst_adapter_masked_scan_uint32_peek (GstAdapter * adapter, guint32 mask,
guint32 pattern, guint offset, guint size, guint32 * value);
G_END_DECLS
#endif /* __GST_ADAPTER_H__ */