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%FEATURE Add new feature to filter the SDP on bypass_media calls to remove or limit codecs.

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VARIABLE: bypass_media_sdp_filter

Can be set globally or per leg on the inbound side of a bypass_media bridge.

VALID FILTERS:

remove(): Removes the specified codec if it exists in the SDP.
only():   Removes all codecs besides the one specified (providing that it exists in the sdp) (will not remove telephone-event))

EXAMPLE 1 (remove everything leaving only g729):

  <action application="set" data="bypass_media_sdp_filter=only(g729)"/>
  <action application="set" data="bypass_media=true"/>
  <action application="bridge" data="sofia/internal/1238@conference.freeswitch.org"/>

EXAMPLE 2 (remove everything leaving only g729 and also remove dtmf):

  <action application="set" data="bypass_media_sdp_filter=only(g729)|remove(telephone-event)"/>
  <action application="set" data="bypass_media=true"/>
  <action application="bridge" data="sofia/internal/1238@conference.freeswitch.org"/>

EXAMPLE 3 (remove alaw and speex):

  <action application="set" data="bypass_media_sdp_filter=remove(pcma)|remove(speex)"/>
  <action application="set" data="bypass_media=true"/>
  <action application="bridge" data="sofia/internal/1238@conference.freeswitch.org"/>
This commit is contained in:
Anthony Minessale
2014-10-01 01:28:10 +05:00
parent 92a66fb1e7
commit 24084adf77
9 changed files with 306 additions and 18 deletions
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src/mod/endpoints/mod_sofia/sofia.c
+7 -14
View File
@@ -6567,9 +6567,8 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
}
if (switch_core_session_get_partner(session, &other_session) == SWITCH_STATUS_SUCCESS) {
other_channel = switch_core_session_get_channel(other_session);
if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
}
switch_channel_pass_sdp(channel, other_channel, r_sdp);
//switch_channel_pre_answer(other_channel);
switch_core_session_queue_indication(other_session, SWITCH_MESSAGE_INDICATE_PROGRESS);
switch_core_session_rwunlock(other_session);
@@ -6626,9 +6625,7 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
other_channel = switch_core_session_get_channel(other_session);
//other_tech_pvt = switch_core_session_get_private(other_session);
if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
}
switch_channel_pass_sdp(channel, other_channel, r_sdp);
switch_core_session_queue_indication(other_session, SWITCH_MESSAGE_INDICATE_ANSWER);
switch_core_session_rwunlock(other_session);
}
@@ -7114,10 +7111,8 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
if (switch_core_session_get_partner(session, &other_session) == SWITCH_STATUS_SUCCESS) {
other_channel = switch_core_session_get_channel(other_session);
if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
}
switch_channel_pass_sdp(channel, other_channel, r_sdp);
if (sofia_test_flag(tech_pvt, TFLAG_3PCC) && sofia_test_pflag(profile, PFLAG_3PCC_PROXY)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "3PCC-PROXY, Got my ACK\n");
sofia_set_flag(tech_pvt, TFLAG_3PCC_HAS_ACK);
@@ -7218,10 +7213,8 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
if (switch_core_session_get_partner(session, &other_session) == SWITCH_STATUS_SUCCESS) {
other_channel = switch_core_session_get_channel(other_session);
if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
}
switch_channel_pass_sdp(channel, other_channel, r_sdp);
//switch_channel_answer(other_channel);
switch_core_session_queue_indication(other_session, SWITCH_MESSAGE_INDICATE_ANSWER);