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/* GStreamer
* Copyright (C) <2005> Philippe Khalaf <burger@speedy.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.
*/
#ifndef __GST_RTP_BASE_DEPAYLOAD_H__
#define __GST_RTP_BASE_DEPAYLOAD_H__
#include <gst/gst.h>
#include <gst/rtp/gstrtpbuffer.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_BASE_DEPAYLOAD (gst_rtp_base_depayload_get_type())
#define GST_RTP_BASE_DEPAYLOAD(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_BASE_DEPAYLOAD,GstRTPBaseDepayload))
#define GST_RTP_BASE_DEPAYLOAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_BASE_DEPAYLOAD,GstRTPBaseDepayloadClass))
#define GST_RTP_BASE_DEPAYLOAD_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_RTP_BASE_DEPAYLOAD,GstRTPBaseDepayloadClass))
#define GST_IS_RTP_BASE_DEPAYLOAD(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_BASE_DEPAYLOAD))
#define GST_IS_RTP_BASE_DEPAYLOAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_BASE_DEPAYLOAD))
#define GST_RTP_BASE_DEPAYLOAD_CAST(obj) ((GstRTPBaseDepayload *)(obj))
#define GST_RTP_BASE_DEPAYLOAD_SINKPAD(depayload) (GST_RTP_BASE_DEPAYLOAD_CAST (depayload)->sinkpad)
#define GST_RTP_BASE_DEPAYLOAD_SRCPAD(depayload) (GST_RTP_BASE_DEPAYLOAD_CAST (depayload)->srcpad)
typedef struct _GstRTPBaseDepayload GstRTPBaseDepayload;
typedef struct _GstRTPBaseDepayloadClass GstRTPBaseDepayloadClass;
typedef struct _GstRTPBaseDepayloadPrivate GstRTPBaseDepayloadPrivate;
struct _GstRTPBaseDepayload
{
GstElement parent;
GstPad *sinkpad, *srcpad;
/* this attribute must be set by the child */
guint clock_rate;
GstSegment segment;
gboolean need_newsegment;
/*< private >*/
GstRTPBaseDepayloadPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstRTPBaseDepayloadClass:
* @parent_class: the parent class
* @set_caps: configure the depayloader
* @process: process incoming rtp packets. Subclass must implement either
* this method or @process_rtp_packet to process incoming rtp packets.
* If the child returns a buffer without a valid timestamp, the timestamp
* of the provided buffer will be applied to the result buffer and the
* buffer will be pushed. If this function returns %NULL, nothing is pushed.
* @packet_lost: signal the depayloader about packet loss
* @handle_event: custom event handling
* @process_rtp_packet: Same as the process virtual function, but slightly more
* efficient, since it is passed the rtp buffer structure that has already
* been mapped (with GST_MAP_READ) by the base class and thus does not have
* to be mapped again by the subclass. Can be used by the subclass to process
* incoming rtp packets. If the subclass returns a buffer without a valid
* timestamp, the timestamp of the input buffer will be applied to the result
* buffer and the output buffer will be pushed out. If this function returns
* %NULL, nothing is pushed out. Since: 1.6.
*
* Base class for RTP depayloaders.
*/
struct _GstRTPBaseDepayloadClass
{
GstElementClass parent_class;
/*< public >*/
/* virtuals, inform the subclass of the caps. */
gboolean (*set_caps) (GstRTPBaseDepayload *filter, GstCaps *caps);
/* pure virtual function */
GstBuffer * (*process) (GstRTPBaseDepayload *base, GstBuffer *in);
/* non-pure function used to to signal the depayloader about packet loss. the
* timestamp and duration are the estimated values of the lost packet.
* The default implementation of this message pushes a segment update. */
gboolean (*packet_lost) (GstRTPBaseDepayload *filter, GstEvent *event);
/* the default implementation does the default actions for events but
* implementation can override. */
gboolean (*handle_event) (GstRTPBaseDepayload * filter, GstEvent * event);
GstBuffer * (*process_rtp_packet) (GstRTPBaseDepayload *base, GstRTPBuffer * rtp_buffer);
/*< private >*/
gpointer _gst_reserved[GST_PADDING - 1];
};
GST_RTP_API
GType gst_rtp_base_depayload_get_type (void);
GST_RTP_API
GstFlowReturn gst_rtp_base_depayload_push (GstRTPBaseDepayload *filter, GstBuffer *out_buf);
GST_RTP_API
GstFlowReturn gst_rtp_base_depayload_push_list (GstRTPBaseDepayload *filter, GstBufferList *out_list);
GST_RTP_API
gboolean gst_rtp_base_depayload_is_source_info_enabled (GstRTPBaseDepayload * depayload);
GST_RTP_API
void gst_rtp_base_depayload_set_source_info_enabled (GstRTPBaseDepayload * depayload,
gboolean enable);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstRTPBaseDepayload, gst_object_unref)
G_END_DECLS
#endif /* __GST_RTP_BASE_DEPAYLOAD_H__ */
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