gstreamer/libs/gst/base/gstadapter.h
Sebastian Dröge 8c7da1d426 adapter: Rename functions and implement new functions, update test
We don't do calculations with different units (buffer offsets and bytes)
anymore but have functions for:
1) getting the number of bytes since the last discont
2) getting the offset (and pts/dts) at the last discont

and the previously added function to get the last offset and its distance from
the current adapter position.

https://bugzilla.gnome.org/show_bug.cgi?id=766647
2016-06-10 09:49:33 +03:00

98 lines
4.8 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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))
/**
* GstAdapter:
*
* The opaque #GstAdapter data structure.
*/
typedef struct _GstAdapter GstAdapter;
typedef struct _GstAdapterClass GstAdapterClass;
GType gst_adapter_get_type (void);
GstAdapter * gst_adapter_new (void) G_GNUC_MALLOC;
void gst_adapter_clear (GstAdapter *adapter);
void gst_adapter_push (GstAdapter *adapter, GstBuffer* buf);
gconstpointer gst_adapter_map (GstAdapter *adapter, gsize size);
void gst_adapter_unmap (GstAdapter *adapter);
void gst_adapter_copy (GstAdapter *adapter, gpointer dest,
gsize offset, gsize size);
GBytes * gst_adapter_copy_bytes (GstAdapter *adapter,
gsize offset, gsize size);
void gst_adapter_flush (GstAdapter *adapter, gsize flush);
gpointer gst_adapter_take (GstAdapter *adapter, gsize nbytes);
GstBuffer* gst_adapter_take_buffer (GstAdapter *adapter, gsize nbytes);
GList* gst_adapter_take_list (GstAdapter *adapter, gsize nbytes);
GstBuffer * gst_adapter_take_buffer_fast (GstAdapter *adapter, gsize nbytes);
GstBufferList * gst_adapter_take_buffer_list (GstAdapter *adapter, gsize nbytes);
GstBuffer* gst_adapter_get_buffer (GstAdapter *adapter, gsize nbytes);
GList* gst_adapter_get_list (GstAdapter *adapter, gsize nbytes);
GstBuffer * gst_adapter_get_buffer_fast (GstAdapter *adapter, gsize nbytes);
GstBufferList * gst_adapter_get_buffer_list (GstAdapter *adapter, gsize nbytes);
gsize gst_adapter_available (GstAdapter *adapter);
gsize gst_adapter_available_fast (GstAdapter *adapter);
GstClockTime gst_adapter_prev_pts (GstAdapter *adapter, guint64 *distance);
GstClockTime gst_adapter_prev_dts (GstAdapter *adapter, guint64 *distance);
GstClockTime gst_adapter_prev_pts_at_offset (GstAdapter * adapter, gsize offset, guint64 * distance);
GstClockTime gst_adapter_prev_dts_at_offset (GstAdapter * adapter, gsize offset, guint64 * distance);
guint64 gst_adapter_prev_offset (GstAdapter *adapter, guint64 *distance);
GstClockTime gst_adapter_pts_at_discont (GstAdapter *adapter);
GstClockTime gst_adapter_dts_at_discont (GstAdapter *adapter);
guint64 gst_adapter_offset_at_discont (GstAdapter *adapter);
guint64 gst_adapter_distance_from_discont (GstAdapter *adapter);
gssize gst_adapter_masked_scan_uint32 (GstAdapter * adapter, guint32 mask,
guint32 pattern, gsize offset, gsize size);
gssize gst_adapter_masked_scan_uint32_peek (GstAdapter * adapter, guint32 mask,
guint32 pattern, gsize offset, gsize size, guint32 * value);
#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAdapter, gst_object_unref)
#endif
G_END_DECLS
#endif /* __GST_ADAPTER_H__ */