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-rw-r--r--src/libosmocc/helper.c193
1 files changed, 0 insertions, 193 deletions
diff --git a/src/libosmocc/helper.c b/src/libosmocc/helper.c
deleted file mode 100644
index 7700174..0000000
--- a/src/libosmocc/helper.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/* Osmo-CC: helpers to simplify Osmo-CC usage
- *
- * (C) 2016 by Andreas Eversberg <jolly@eversberg.eu>
- * All Rights Reserved
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <inttypes.h>
-#include "../libtimer/timer.h"
-#include "../libdebug/debug.h"
-#include "endpoint.h"
-#include "helper.h"
-
-osmo_cc_session_t *osmo_cc_helper_audio_offer(osmo_cc_session_config_t *conf, void *priv, struct osmo_cc_helper_audio_codecs *codecs, void (*receiver)(struct osmo_cc_session_codec *codec, uint8_t marker, uint16_t sequence_number, uint32_t timestamp, uint32_t ssrc, uint8_t *data, int len), osmo_cc_msg_t *msg, int debug)
-{
- osmo_cc_session_t *session;
- osmo_cc_session_media_t *media;
- const char *sdp;
- int i;
-
- session = osmo_cc_new_session(conf, priv, NULL, NULL, NULL, 0, 0, NULL, NULL, debug);
- if (!session)
- return NULL;
-
- media = osmo_cc_add_media(session, 0, 0, NULL, osmo_cc_session_media_type_audio, 0, osmo_cc_session_media_proto_rtp, 1, 1, receiver, debug);
- osmo_cc_rtp_open(media);
-
- for (i = 0; codecs[i].payload_name; i++)
- osmo_cc_add_codec(media, codecs[i].payload_name, codecs[i].payload_rate, codecs[i].payload_channels, codecs[i].encoder, codecs[i].decoder, debug);
-
- sdp = osmo_cc_session_send_offer(session);
- osmo_cc_add_ie_sdp(msg, sdp);
-
- return session;
-}
-
-const char *osmo_cc_helper_audio_accept(osmo_cc_session_config_t *conf, void *priv, struct osmo_cc_helper_audio_codecs *codecs, void (*receiver)(struct osmo_cc_session_codec *codec, uint8_t marker, uint16_t sequence_number, uint32_t timestamp, uint32_t ssrc, uint8_t *data, int len), osmo_cc_msg_t *msg, osmo_cc_session_t **session_p, osmo_cc_session_codec_t **codec_p, int force_our_codec)
-{
- char offer_sdp[65536];
- const char *accept_sdp;
- osmo_cc_session_media_t *media, *selected_media;
- osmo_cc_session_codec_t *codec, *selected_codec, *telephone_event;
- int rc;
- int i, selected_codec_i, telephone_event_i;
-
- if (*session_p) {
- PDEBUG(DCC, DEBUG_ERROR, "Session already set, please fix!\n");
- abort();
- }
- if (*codec_p) {
- PDEBUG(DCC, DEBUG_ERROR, "Codec already set, please fix!\n");
- abort();
- }
-
- /* SDP IE */
- rc = osmo_cc_get_ie_sdp(msg, 0, offer_sdp, sizeof(offer_sdp));
- if (rc < 0) {
- PDEBUG(DCC, DEBUG_ERROR, "There is no SDP included in setup request.\n");
- return NULL;
- }
-
- *session_p = osmo_cc_session_receive_offer(conf, priv, offer_sdp);
- if (!*session_p) {
- PDEBUG(DCC, DEBUG_ERROR, "Failed to parse SDP.\n");
- return NULL;
- }
-
- selected_media = NULL;
- osmo_cc_session_for_each_media((*session_p)->media_list, media) {
- /* only audio */
- if (media->description.type != osmo_cc_session_media_type_audio)
- continue;
- selected_codec_i = -1;
- selected_codec = NULL;
- telephone_event_i = -1;
- telephone_event = NULL;
- osmo_cc_session_for_each_codec(media->codec_list, codec) {
- if (!!strcasecmp(codec->payload_name, "telephone-event")) {
- for (i = 0; codecs[i].payload_name; i++) {
- if (osmo_cc_session_if_codec(codec, codecs[i].payload_name, codecs[i].payload_rate, codecs[i].payload_channels)) {
- /* select the first matchting codec or the one we prefer */
- if (selected_codec_i < 0 || i < selected_codec_i) {
- selected_codec = codec;
- selected_codec_i = i;
- selected_media = media;
- }
- /* if we don't force our preferred codec, use the preferred one from the remote */
- if (!force_our_codec)
- break;
- }
- }
- } else {
- /* special case: add telephone-event, if supported */
- for (i = 0; codecs[i].payload_name; i++) {
- if (!!strcasecmp(codecs[i].payload_name, "telephone-event"))
- continue;
- telephone_event = codec;
- telephone_event_i = i;
- break;
- }
- }
- }
- /* codec is selected within this media, we are done */
- if (selected_codec)
- break;
- }
- if (!selected_codec) {
- PDEBUG(DCC, DEBUG_ERROR, "No codec found in setup message that we support.\n");
- osmo_cc_free_session(*session_p);
- *session_p = NULL;
- return NULL;
- }
- osmo_cc_session_accept_codec(selected_codec, codecs[selected_codec_i].encoder, codecs[selected_codec_i].decoder);
- if (telephone_event)
- osmo_cc_session_accept_codec(telephone_event, codecs[telephone_event_i].encoder, codecs[telephone_event_i].decoder);
- osmo_cc_session_accept_media(selected_media, 0, 0, NULL, 1, 1, receiver);
- osmo_cc_rtp_open(selected_media);
- osmo_cc_rtp_connect(selected_media);
- *codec_p = selected_codec;
-
- accept_sdp = osmo_cc_session_send_answer(*session_p);
- if (!accept_sdp) {
- osmo_cc_free_session(*session_p);
- *session_p = NULL;
- return NULL;
- }
-
- return accept_sdp;
-}
-
-int osmo_cc_helper_audio_negotiate(osmo_cc_msg_t *msg, osmo_cc_session_t **session_p, osmo_cc_session_codec_t **codec_p)
-{
- char sdp[65536];
- osmo_cc_session_media_t *media;
- int rc;
-
- if (!(*session_p)) {
- PDEBUG(DCC, DEBUG_ERROR, "Session not set, please fix!\n");
- abort();
- }
-
- /* once done, just ignore further messages that reply to setup */
- if (*codec_p)
- return 0;
-
- /* SDP IE */
- rc = osmo_cc_get_ie_sdp(msg, 0, sdp, sizeof(sdp));
- if (rc < 0)
- return 0; // no reply in this message
-
- rc = osmo_cc_session_receive_answer(*session_p, sdp);
- if (rc < 0)
- return rc;
-
- osmo_cc_session_for_each_media((*session_p)->media_list, media) {
- /* only audio */
- if (media->description.type != osmo_cc_session_media_type_audio)
- continue;
- /* select first codec, if one was accpeted */
- if (media->codec_list)
- *codec_p = media->codec_list;
- if (*codec_p) {
- osmo_cc_rtp_connect(media);
- /* no more media streams */
- break;
- }
- }
- if (!(*codec_p)) {
- PDEBUG(DCC, DEBUG_ERROR, "No codec found in setup reply message that we support.\n");
- return -EIO;
- }
-
- return 0;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-11 12:36:19 +0000