From: Liyang <liyang@x-y-t.cn>
Date: Tue, 30 Apr 2019 13:43:31 +0000 (+0800)
Subject: FS-11822 [core] reset the codec_string when stream changed
X-Git-Tag: v1.8.6~1^2~36
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c73aa82da99a0ad99a0790d3b8e069a8f56a1b7;p=thirdparty%2Ffreeswitch.git

FS-11822 [core] reset the codec_string when stream changed
---

diff --git a/src/switch_core_media.c b/src/switch_core_media.c
index e27e9224af..baa2728b73 100644
--- a/src/switch_core_media.c
+++ b/src/switch_core_media.c
@@ -4641,6 +4641,7 @@ static void check_stream_changes(switch_core_session_t *session, const char *r_s
 			if (sdp_type == SDP_TYPE_REQUEST && r_sdp) {
 				const char *filter_codec_string = switch_channel_get_variable(session->channel, "filter_codec_string");
 				
+				switch_channel_set_variable(session->channel, "codec_string", NULL);
 				switch_core_media_merge_sdp_codec_string(session, r_sdp, sdp_type, filter_codec_string);
 			}
 			switch_core_session_check_outgoing_crypto(other_session);