mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-05 02:02:26 +00:00
bc309a100f
Implement a chain_list function, which avoids lots of locking compared to the default fallback implementation in GstPad. We may also want to do some more sophisticated timestamp tracking here at some point, but for now leave it up to the jitterbuffer and/or subclasses (in case buffers in the buffer list have no timestamp set on them, there may only be a timestamp for the whole list on the first buffer). This provides the exact same behaviour as the default fallback implementation.
111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
/* GStreamer
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* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_RTP_BASE_DEPAYLOAD_H__
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#define __GST_RTP_BASE_DEPAYLOAD_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbuffer.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_BASE_DEPAYLOAD (gst_rtp_base_depayload_get_type())
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#define GST_RTP_BASE_DEPAYLOAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_BASE_DEPAYLOAD,GstRTPBaseDepayload))
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#define GST_RTP_BASE_DEPAYLOAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_BASE_DEPAYLOAD,GstRTPBaseDepayloadClass))
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#define GST_RTP_BASE_DEPAYLOAD_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_RTP_BASE_DEPAYLOAD,GstRTPBaseDepayloadClass))
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#define GST_IS_RTP_BASE_DEPAYLOAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_BASE_DEPAYLOAD))
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#define GST_IS_RTP_BASE_DEPAYLOAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_BASE_DEPAYLOAD))
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#define GST_RTP_BASE_DEPAYLOAD_CAST(obj) ((GstRTPBaseDepayload *)(obj))
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#define GST_RTP_BASE_DEPAYLOAD_SINKPAD(depayload) (GST_RTP_BASE_DEPAYLOAD_CAST (depayload)->sinkpad)
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#define GST_RTP_BASE_DEPAYLOAD_SRCPAD(depayload) (GST_RTP_BASE_DEPAYLOAD_CAST (depayload)->srcpad)
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typedef struct _GstRTPBaseDepayload GstRTPBaseDepayload;
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typedef struct _GstRTPBaseDepayloadClass GstRTPBaseDepayloadClass;
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typedef struct _GstRTPBaseDepayloadPrivate GstRTPBaseDepayloadPrivate;
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struct _GstRTPBaseDepayload
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{
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GstElement parent;
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GstPad *sinkpad, *srcpad;
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/* this attribute must be set by the child */
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guint clock_rate;
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GstSegment segment;
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gboolean need_newsegment;
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/*< private >*/
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GstRTPBaseDepayloadPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstRTPBaseDepayloadClass:
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* @parent_class: the parent class
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* @set_caps: configure the depayloader
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* @process: process incoming rtp packets
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* @packet_lost: signal the depayloader about packet loss
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* @handle_event: custom event handling
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*
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* Base class for audio RTP payloader.
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*/
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struct _GstRTPBaseDepayloadClass
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{
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GstElementClass parent_class;
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/* virtuals, inform the subclass of the caps. */
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gboolean (*set_caps) (GstRTPBaseDepayload *filter, GstCaps *caps);
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/* pure virtual function, child must use this to process incoming
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* rtp packets. If the child returns a buffer without a valid timestamp,
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* the timestamp of @in will be applied to the result buffer and the
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* buffer will be pushed. If this function returns %NULL, nothing is
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* pushed. */
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GstBuffer * (*process) (GstRTPBaseDepayload *base, GstBuffer *in);
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/* non-pure function used to to signal the depayloader about packet loss. the
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* timestamp and duration are the estimated values of the lost packet.
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* The default implementation of this message pushes a segment update. */
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gboolean (*packet_lost) (GstRTPBaseDepayload *filter, GstEvent *event);
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/* the default implementation does the default actions for events but
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* implementation can override. */
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gboolean (*handle_event) (GstRTPBaseDepayload * filter, GstEvent * event);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_rtp_base_depayload_get_type (void);
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GstFlowReturn gst_rtp_base_depayload_push (GstRTPBaseDepayload *filter, GstBuffer *out_buf);
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GstFlowReturn gst_rtp_base_depayload_push_list (GstRTPBaseDepayload *filter, GstBufferList *out_list);
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G_END_DECLS
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#endif /* __GST_RTP_BASE_DEPAYLOAD_H__ */
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