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100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
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/* 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_FEC_H__
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#define __GST_FEC_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_ULPFEC_ENC \
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(gst_rtp_ulpfec_enc_get_type())
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#define GST_RTP_ULPFEC_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_ULPFEC_ENC,GstRtpUlpFecEnc))
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#define GST_RTP_ULPFEC_ENC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_ULPFEC_ENC,GstRtpUlpFecEncClass))
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#define GST_IS_RTP_ULPFEC_ENC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_ULPFEC_ENC))
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#define GST_IS_RTP_ULPFEC_ENC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_ULPFEC_ENC))
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typedef struct _GstRtpUlpFecEnc GstRtpUlpFecEnc;
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typedef struct _GstRtpUlpFecEncClass GstRtpUlpFecEncClass;
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struct _GstRtpUlpFecEncClass {
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GstElementClass parent_class;
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};
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struct _GstRtpUlpFecEnc {
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GstElement parent;
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GstPad *srcpad;
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GstPad *sinkpad;
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GHashTable *ssrc_to_ctx;
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/* properties */
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guint pt;
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guint32 ssrc;
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guint percentage;
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guint percentage_important;
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gboolean multipacket;
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guint num_packets_protected;
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};
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typedef struct {
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guint ssrc;
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GstElement *parent;
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GstPad *srcpad;
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/* settings */
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guint pt;
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guint percentage;
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guint percentage_important;
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gboolean multipacket;
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gboolean mux_seq;
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guint num_packets_protected;
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guint16 seqnum;
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guint seqnum_offset;
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guint num_packets_received;
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guint num_packets_fec;
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guint fec_nth;
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GQueue packets_buf;
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gdouble budget;
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gdouble budget_inc;
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gdouble budget_important;
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gdouble budget_inc_important;
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GArray *info_arr;
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GArray *scratch_buf;
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guint fec_packets;
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guint fec_packet_idx;
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} GstRtpUlpFecEncStreamCtx;
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GType gst_rtp_ulpfec_enc_get_type (void);
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G_END_DECLS
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#endif /* __GST_FEC_H__ */
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