mirror of
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128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/*
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* Copyright (C) 2021 Purism SPC
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*
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* This file is part of Calls.
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*
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* Calls is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Calls is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Calls. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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*/
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#define G_LOG_DOMAIN "CallsCallsSipMediaManager"
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#include "calls-sip-media-pipeline.h"
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#include "gst-rfc3551.h"
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#include "calls-sip-media-manager.h"
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#include <gst/gst.h>
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typedef struct _CallsSipMediaManager
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{
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GObject parent;
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} CallsSipMediaManager;
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G_DEFINE_TYPE (CallsSipMediaManager, calls_sip_media_manager, G_TYPE_OBJECT);
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MediaCodecInfo*
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get_best_codec (CallsSipMediaManager *self)
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{
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return media_codec_by_name ("PCMU");
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}
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static void
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calls_sip_media_manager_finalize (GObject *object)
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{
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gst_deinit ();
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G_OBJECT_CLASS (calls_sip_media_manager_parent_class)->finalize (object);
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}
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static void
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calls_sip_media_manager_class_init (CallsSipMediaManagerClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = calls_sip_media_manager_finalize;
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}
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static void
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calls_sip_media_manager_init (CallsSipMediaManager *self)
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{
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gst_init (NULL, NULL);
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}
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/* Public functions */
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CallsSipMediaManager *
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calls_sip_media_manager_default ()
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{
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static CallsSipMediaManager *instance = NULL;
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if (instance == NULL) {
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g_debug ("Creating CallsSipMediaManager");
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instance = g_object_new (CALLS_TYPE_SIP_MEDIA_MANAGER, NULL);
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g_object_add_weak_pointer (G_OBJECT (instance), (gpointer *) &instance);
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}
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return instance;
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}
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/* calls_sip_media_manager_static_capabilities:
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*
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* @port: Should eventually come from the ICE stack
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* @use_srtp: Whether to use srtp (not really handled)
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*
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* Returns: (full-control) string describing capabilities
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* to be used in the session description (SDP)
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*/
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char *
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calls_sip_media_manager_static_capabilities (CallsSipMediaManager *self,
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guint port,
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gboolean use_srtp)
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{
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char *attribute_line = "rtpmap:0 PCMU/8000";
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char *payload_type = use_srtp ? "SAVP" : "AVP";
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g_autofree char *media_line = NULL;
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g_return_val_if_fail (CALLS_IS_SIP_MEDIA_MANAGER (self), NULL);
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media_line = g_strdup_printf ("audio %d RTP/%s 0", port, payload_type);
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/* TODO we can have multiple attribute lines (or media lines for that matter) */
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/* TODO add attribute describing RTCP stream */
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return g_strdup_printf ("v=0\r\n"
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"m=%s\r\n"
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"a=%s\r\n",
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media_line,
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attribute_line);
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}
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/* TODO lookup plugins in GStreamer */
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gboolean
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calls_sip_media_manager_supports_media (CallsSipMediaManager *self,
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const char *media_type)
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{
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return TRUE;
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}
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