gstreamer/gst/rtp/gstrtpredenc.h
Mikhail Fludkov d5ad50bd61 rtp: Implement ULPFEC (RFC 5109)
We expose a set of new elements:

* ULPFEC encoder / decoder
* A storage element, which should be placed before jitterbuffers,
  and is used to store packets in order to attempt reconstruction
  after the jitterbuffer has sent PacketLost events
* RED encoder / decoder (RFC 2198), these are necessary to
  use FEC in webrtc, as browsers will propose and expect ulpfec
  packets to be wrapped in red packets

With contributions from:

Mathieu Duponchelle <mathieu@centricular.com>
Sebastian Dröge <sebastian@centricular.com>

https://bugzilla.gnome.org/show_bug.cgi?id=792696
2018-02-21 14:15:22 +01:00

65 lines
1.9 KiB
C

/* GStreamer plugin for forward error correction
* Copyright (C) 2017 Pexip
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Mikhail Fludkov <misha@pexip.com>
*/
#ifndef __GST_RTP_RED_ENC_H__
#define __GST_RTP_RED_ENC_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_RED_ENC \
(gst_rtp_red_enc_get_type())
#define GST_RTP_RED_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_RED_ENC,GstRtpRedEnc))
#define GST_RTP_RED_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_RED_ENC,GstRtpRedEncClass))
#define GST_IS_RTP_RED_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_RED_ENC))
#define GST_IS_RTP_RED_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_RED_ENC))
typedef struct _GstRtpRedEnc GstRtpRedEnc;
typedef struct _GstRtpRedEncClass GstRtpRedEncClass;
struct _GstRtpRedEncClass {
GstElementClass parent_class;
};
struct _GstRtpRedEnc {
GstElement parent;
GstPad *srcpad;
GstPad *sinkpad;
gint pt;
guint num_sent;
guint distance;
gboolean allow_no_red_blocks;
GQueue *rtp_history;
gboolean send_caps;
gboolean is_current_caps_red;
};
GType gst_rtp_red_enc_get_type (void);
G_END_DECLS
#endif /* __GST_RTP_RED_ENC_H__ */