1 /* GStreamer plugin for forward error correction 2 * Copyright (C) 2017 Pexip 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 * 18 * Author: Mikhail Fludkov <misha@pexip.com> 19 */ 20 21 #ifndef __GST_RTP_ULPFEC_DEC_H__ 22 #define __GST_RTP_ULPFEC_DEC_H__ 23 24 #include <gst/gst.h> 25 26 #include "rtpstorage.h" 27 28 G_BEGIN_DECLS 29 30 #define GST_TYPE_RTP_ULPFEC_DEC \ 31 (gst_rtp_ulpfec_dec_get_type()) 32 #define GST_RTP_ULPFEC_DEC(obj) \ 33 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_ULPFEC_DEC,GstRtpUlpFecDec)) 34 #define GST_RTP_ULPFEC_DEC_CLASS(klass) \ 35 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_ULPFEC_DEC,GstRtpUlpFecDecClass)) 36 #define GST_IS_RTP_ULPFEC_DEC(obj) \ 37 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_ULPFEC_DEC)) 38 #define GST_IS_RTP_ULPFEC_DEC_CLASS(klass) \ 39 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_ULPFEC_DEC)) 40 41 typedef struct _GstRtpUlpFecDec GstRtpUlpFecDec; 42 typedef struct _GstRtpUlpFecDecClass GstRtpUlpFecDecClass; 43 44 struct _GstRtpUlpFecDecClass { 45 GstElementClass parent_class; 46 }; 47 48 struct _GstRtpUlpFecDec { 49 GstElement parent; 50 GstPad *srcpad; 51 GstPad *sinkpad; 52 53 /* properties */ 54 guint8 fec_pt; 55 RtpStorage *storage; 56 gsize packets_recovered; 57 gsize packets_unrecovered; 58 59 /* internal stuff */ 60 GstFlowReturn chain_return_val; 61 gboolean unset_discont_flag; 62 gboolean have_caps_ssrc; 63 gboolean have_caps_pt; 64 guint32 caps_ssrc; 65 guint8 caps_pt; 66 GList *info_media; 67 GPtrArray *info_fec; 68 GArray *info_arr; 69 GArray *scratch_buf; 70 gboolean lost_packet_from_storage; 71 gboolean lost_packet_returned; 72 guint16 next_seqnum; 73 74 /* stats */ 75 gsize fec_packets_received; 76 gsize fec_packets_rejected; 77 gsize packets_rejected; 78 }; 79 80 GType gst_rtp_ulpfec_dec_get_type (void); 81 82 G_END_DECLS 83 84 #endif /* __GST_RTP_ULPFEC_DEC_H__ */ 85