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093e9c8c9d
Support for enabling and disabling decoding of FEC data decoding on packet loss events and unconditional seqnum rewriting of packets. See https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/issues/581 for background. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3212>
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/* GStreamer plugin for forward error correction
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* Copyright (C) 2017 Pexip
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Author: Mikhail Fludkov <misha@pexip.com>
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*/
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#ifndef __GST_RTP_ULPFEC_DEC_H__
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#define __GST_RTP_ULPFEC_DEC_H__
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#include <gst/gst.h>
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#include "rtpstorage.h"
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_ULPFEC_DEC \
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(gst_rtp_ulpfec_dec_get_type())
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#define GST_RTP_ULPFEC_DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_ULPFEC_DEC,GstRtpUlpFecDec))
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#define GST_RTP_ULPFEC_DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_ULPFEC_DEC,GstRtpUlpFecDecClass))
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#define GST_IS_RTP_ULPFEC_DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_ULPFEC_DEC))
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#define GST_IS_RTP_ULPFEC_DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_ULPFEC_DEC))
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typedef struct _GstRtpUlpFecDec GstRtpUlpFecDec;
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typedef struct _GstRtpUlpFecDecClass GstRtpUlpFecDecClass;
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struct _GstRtpUlpFecDecClass {
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GstElementClass parent_class;
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};
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struct _GstRtpUlpFecDec {
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GstElement parent;
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GstPad *srcpad;
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GstPad *sinkpad;
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/* properties */
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guint8 fec_pt;
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RtpStorage *storage;
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gsize packets_recovered;
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gsize packets_unrecovered;
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gboolean passthrough;
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/* internal stuff */
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GstFlowReturn chain_return_val;
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gboolean unset_discont_flag;
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gboolean needs_discont;
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gboolean have_caps_ssrc;
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gboolean have_caps_pt;
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guint32 caps_ssrc;
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guint8 caps_pt;
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GList *info_media;
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GPtrArray *info_fec;
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GArray *info_arr;
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GArray *scratch_buf;
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gboolean lost_packet_from_storage;
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gboolean lost_packet_returned;
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guint16 next_seqnum;
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/* stats */
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gsize fec_packets_received;
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gsize fec_packets_rejected;
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gsize packets_rejected;
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};
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GType gst_rtp_ulpfec_dec_get_type (void);
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G_END_DECLS
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#endif /* __GST_RTP_ULPFEC_DEC_H__ */
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