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res/res_pjsip_sdp_rtp: Fix MOH transitions

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Update the state of remote_hold immediately on receipt of remote
SDP so that the information is available when building the SDP
answer

ASTERISK-28754 #close

Change-Id: I7026032a807e9c95081cb8f060400b05deb4836f
This commit is contained in:
Torrey Searle
2020-02-24 16:00:08 +01:00
committed by Torrey Searle
parent 838583783f
commit 77c9ba8e63
2 changed files with 24 additions and 11 deletions
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33
res/res_pjsip_sdp_rtp.c
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@@ -1406,6 +1406,20 @@ static int negotiate_incoming_sdp_stream(struct ast_sip_session *session,
/* If ICE support is enabled find all the needed attributes */
check_ice_support(session, session_media, stream);
/* Check if incomming SDP is changing the remotely held state */
if (ast_sockaddr_isnull(addrs) ||
ast_sockaddr_is_any(addrs) ||
pjmedia_sdp_media_find_attr2(stream, "sendonly", NULL) ||
pjmedia_sdp_media_find_attr2(stream, "inactive", NULL)) {
if (!session_media->remotely_held) {
session_media->remotely_held = 1;
session_media->remotely_held_changed = 1;
}
} else if (session_media->remotely_held) {
session_media->remotely_held = 0;
session_media->remotely_held_changed = 1;
}
if (set_caps(session, session_media, session_media_transport, stream, 1, asterisk_stream)) {
return 0;
}
@@ -1997,22 +2011,19 @@ static int apply_negotiated_sdp_stream(struct ast_sip_session *session,
return 1;
}
if (ast_sockaddr_isnull(addrs) ||
ast_sockaddr_is_any(addrs) ||
pjmedia_sdp_media_find_attr2(remote_stream, "sendonly", NULL) ||
pjmedia_sdp_media_find_attr2(remote_stream, "inactive", NULL)) {
if (!session_media->remotely_held) {
if (session_media->remotely_held_changed) {
if (session_media->remotely_held) {
/* The remote side has put us on hold */
ast_queue_hold(session->channel, session->endpoint->mohsuggest);
ast_rtp_instance_stop(session_media->rtp);
ast_queue_frame(session->channel, &ast_null_frame);
session_media->remotely_held = 1;
session_media->remotely_held_changed = 0;
} else {
/* The remote side has taken us off hold */
ast_queue_unhold(session->channel);
ast_queue_frame(session->channel, &ast_null_frame);
session_media->remotely_held_changed = 0;
}
} else if (session_media->remotely_held) {
/* The remote side has taken us off hold */
ast_queue_unhold(session->channel);
ast_queue_frame(session->channel, &ast_null_frame);
session_media->remotely_held = 0;
} else if ((pjmedia_sdp_neg_was_answer_remote(session->inv_session->neg) == PJ_FALSE)
&& (session->inv_session->state == PJSIP_INV_STATE_CONFIRMED)) {
ast_queue_control(session->channel, AST_CONTROL_UPDATE_RTP_PEER);