mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-15 04:46:32 +00:00
135 lines
5.2 KiB
C
135 lines
5.2 KiB
C
/* 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__ */
|