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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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199 lines
6.8 KiB
C
199 lines
6.8 KiB
C
/* GStreamer
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* Copyright (C) <2005> Wim Taymans <wim@fluendo.com>
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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_PAYLOAD_H__
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#define __GST_RTP_BASE_PAYLOAD_H__
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#include <gst/gst.h>
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#include <gst/rtp/rtp-prelude.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_BASE_PAYLOAD \
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(gst_rtp_base_payload_get_type())
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#define GST_RTP_BASE_PAYLOAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_BASE_PAYLOAD,GstRTPBasePayload))
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#define GST_RTP_BASE_PAYLOAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_BASE_PAYLOAD,GstRTPBasePayloadClass))
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#define GST_RTP_BASE_PAYLOAD_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_BASE_PAYLOAD, GstRTPBasePayloadClass))
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#define GST_IS_RTP_BASE_PAYLOAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_BASE_PAYLOAD))
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#define GST_IS_RTP_BASE_PAYLOAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_BASE_PAYLOAD))
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#define GST_RTP_BASE_PAYLOAD_CAST(obj) \
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((GstRTPBasePayload*)(obj))
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typedef struct _GstRTPBasePayload GstRTPBasePayload;
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typedef struct _GstRTPBasePayloadPrivate GstRTPBasePayloadPrivate;
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typedef struct _GstRTPBasePayloadClass GstRTPBasePayloadClass;
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/**
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* GST_RTP_BASE_PAYLOAD_SINKPAD:
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* @payload: a #GstRTPBasePayload
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*
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* Get access to the sinkpad of @payload.
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*/
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#define GST_RTP_BASE_PAYLOAD_SINKPAD(payload) (GST_RTP_BASE_PAYLOAD (payload)->sinkpad)
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/**
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* GST_RTP_BASE_PAYLOAD_SRCPAD:
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* @payload: a #GstRTPBasePayload
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*
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* Get access to the srcpad of @payload.
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*/
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#define GST_RTP_BASE_PAYLOAD_SRCPAD(payload) (GST_RTP_BASE_PAYLOAD (payload)->srcpad)
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/**
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* GST_RTP_BASE_PAYLOAD_PT:
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* @payload: a #GstRTPBasePayload
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*
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* Get access to the configured payload type of @payload.
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*/
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#define GST_RTP_BASE_PAYLOAD_PT(payload) (GST_RTP_BASE_PAYLOAD (payload)->pt)
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/**
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* GST_RTP_BASE_PAYLOAD_MTU:
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* @payload: a #GstRTPBasePayload
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*
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* Get access to the configured MTU of @payload.
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*/
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#define GST_RTP_BASE_PAYLOAD_MTU(payload) (GST_RTP_BASE_PAYLOAD (payload)->mtu)
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struct _GstRTPBasePayload
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{
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GstElement element;
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/*< private >*/
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GstPad *sinkpad;
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GstPad *srcpad;
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guint32 ts_base;
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guint16 seqnum_base;
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gchar *media;
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gchar *encoding_name;
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gboolean dynamic;
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guint32 clock_rate;
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gint32 ts_offset;
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guint32 timestamp;
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gint16 seqnum_offset;
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guint16 seqnum;
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gint64 max_ptime;
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guint pt;
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guint ssrc;
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guint current_ssrc;
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guint mtu;
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GstSegment segment;
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guint64 min_ptime;
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guint64 ptime; /* in ns */
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guint64 ptime_multiple; /* in ns */
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/*< private >*/
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GstRTPBasePayloadPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstRTPBasePayloadClass:
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* @parent_class: the parent class
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* @get_caps: get desired caps
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* @set_caps: configure the payloader
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* @handle_buffer: process data
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* @sink_event: custom event handling on the sinkpad
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* @src_event: custom event handling on the srcpad
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* @query: custom query handling
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*
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* Base class for audio RTP payloader.
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*/
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struct _GstRTPBasePayloadClass
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{
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GstElementClass parent_class;
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/* query accepted caps */
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GstCaps * (*get_caps) (GstRTPBasePayload *payload, GstPad * pad, GstCaps * filter);
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/* receive caps on the sink pad, configure the payloader. */
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gboolean (*set_caps) (GstRTPBasePayload *payload, GstCaps *caps);
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/* handle a buffer, perform 0 or more gst_rtp_base_payload_push() on
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* the RTP buffers. This function takes ownership of the buffer. */
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GstFlowReturn (*handle_buffer) (GstRTPBasePayload *payload,
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GstBuffer *buffer);
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/* handle events and queries */
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gboolean (*sink_event) (GstRTPBasePayload *payload, GstEvent * event);
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gboolean (*src_event) (GstRTPBasePayload *payload, GstEvent * event);
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gboolean (*query) (GstRTPBasePayload *payload, GstPad *pad, GstQuery * query);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_RTP_API
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GType gst_rtp_base_payload_get_type (void);
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GST_RTP_API
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void gst_rtp_base_payload_set_options (GstRTPBasePayload *payload,
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const gchar *media,
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gboolean dynamic,
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const gchar *encoding_name,
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guint32 clock_rate);
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GST_RTP_API
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gboolean gst_rtp_base_payload_set_outcaps (GstRTPBasePayload *payload,
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const gchar *fieldname, ...);
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GST_RTP_API
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gboolean gst_rtp_base_payload_set_outcaps_structure (GstRTPBasePayload *payload,
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GstStructure *s);
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GST_RTP_API
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gboolean gst_rtp_base_payload_is_filled (GstRTPBasePayload *payload,
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guint size, GstClockTime duration);
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GST_RTP_API
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GstFlowReturn gst_rtp_base_payload_push (GstRTPBasePayload *payload,
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GstBuffer *buffer);
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GST_RTP_API
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GstFlowReturn gst_rtp_base_payload_push_list (GstRTPBasePayload *payload,
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GstBufferList *list);
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GST_RTP_API
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GstBuffer * gst_rtp_base_payload_allocate_output_buffer (GstRTPBasePayload * payload,
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guint payload_len, guint8 pad_len,
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guint8 csrc_count);
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GST_RTP_API
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void gst_rtp_base_payload_set_source_info_enabled (GstRTPBasePayload * payload,
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gboolean enable);
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GST_RTP_API
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gboolean gst_rtp_base_payload_is_source_info_enabled (GstRTPBasePayload * payload);
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GST_RTP_API
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guint gst_rtp_base_payload_get_source_count (GstRTPBasePayload * payload,
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GstBuffer * buffer);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstRTPBasePayload, gst_object_unref)
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G_END_DECLS
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#endif /* __GST_RTP_BASE_PAYLOAD_H__ */
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