1 /* GStreamer 2 * Copyright (C) 2017 Matthew Waters <matthew@centricular.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 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 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __WEBRTC_SDP_H__ 21 #define __WEBRTC_SDP_H__ 22 23 #include <gst/gst.h> 24 #include <gst/webrtc/webrtc.h> 25 #include "fwd.h" 26 27 G_BEGIN_DECLS 28 29 typedef enum 30 { 31 SDP_NONE, 32 SDP_LOCAL, 33 SDP_REMOTE, 34 } SDPSource; 35 36 G_GNUC_INTERNAL 37 const gchar * _sdp_source_to_string (SDPSource source); 38 39 40 G_GNUC_INTERNAL 41 gboolean validate_sdp (GstWebRTCSignalingState state, 42 SDPSource source, 43 GstWebRTCSessionDescription * sdp, 44 GError ** error); 45 46 G_GNUC_INTERNAL 47 GstWebRTCRTPTransceiverDirection _get_direction_from_media (const GstSDPMedia * media); 48 G_GNUC_INTERNAL 49 GstWebRTCRTPTransceiverDirection _intersect_answer_directions (GstWebRTCRTPTransceiverDirection offer, 50 GstWebRTCRTPTransceiverDirection answer); 51 G_GNUC_INTERNAL 52 void _media_replace_direction (GstSDPMedia * media, 53 GstWebRTCRTPTransceiverDirection direction); 54 G_GNUC_INTERNAL 55 GstWebRTCRTPTransceiverDirection _get_final_direction (GstWebRTCRTPTransceiverDirection local_dir, 56 GstWebRTCRTPTransceiverDirection remote_dir); 57 58 G_GNUC_INTERNAL 59 GstWebRTCDTLSSetup _get_dtls_setup_from_media (const GstSDPMedia * media); 60 G_GNUC_INTERNAL 61 GstWebRTCDTLSSetup _intersect_dtls_setup (GstWebRTCDTLSSetup offer); 62 G_GNUC_INTERNAL 63 void _media_replace_setup (GstSDPMedia * media, 64 GstWebRTCDTLSSetup setup); 65 G_GNUC_INTERNAL 66 GstWebRTCDTLSSetup _get_final_setup (GstWebRTCDTLSSetup local_setup, 67 GstWebRTCDTLSSetup remote_setup); 68 G_GNUC_INTERNAL 69 gchar * _generate_fingerprint_from_certificate (gchar * certificate, 70 GChecksumType checksum_type); 71 G_GNUC_INTERNAL 72 void _generate_ice_credentials (gchar ** ufrag, 73 gchar ** password); 74 75 G_GNUC_INTERNAL 76 gboolean _media_has_attribute_key (const GstSDPMedia * media, 77 const gchar * key); 78 79 G_GNUC_INTERNAL 80 int _get_sctp_port_from_media (const GstSDPMedia * media); 81 G_GNUC_INTERNAL 82 guint64 _get_sctp_max_message_size_from_media (const GstSDPMedia * media); 83 84 G_GNUC_INTERNAL 85 void _get_ice_credentials_from_sdp_media (const GstSDPMessage * sdp, 86 guint media_idx, 87 gchar ** ufrag, 88 gchar ** pwd); 89 G_GNUC_INTERNAL 90 gboolean _message_media_is_datachannel (const GstSDPMessage * msg, 91 guint media_id); 92 93 G_GNUC_INTERNAL 94 gboolean _get_bundle_index (GstSDPMessage * sdp, 95 GStrv bundled, 96 guint * idx); 97 G_GNUC_INTERNAL 98 gboolean _parse_bundle (GstSDPMessage * sdp, 99 GStrv * bundled); 100 101 #endif /* __WEBRTC_UTILS_H__ */ 102