bridge_native_rtp: Take the bridge type choice of both channels into account.

The bridge_native_rtp module currently uses the bridge result of the first
channel that joins a bridge as the ultimate result. This means that if the
first channel has direct media enabled but the second does not a direct
media bridge will still occur.

This change makes it so that both sides are taken into account. If either
side forbids the bridge or responds with a local bridge result then
either a generic or local bridge occurs.

ASTERISK-23541 #close
Reported by: Justin E

Review: https://reviewboard.asterisk.org/r/3577/
........

Merged revisions 414975 from http://svn.asterisk.org/svn/asterisk/branches/12

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@414976 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/bridges/bridge_native_rtp.c b/bridges/bridge_native_rtp.c
index 7e48ab92f21ee57275be599412058d5c3252b7ca..2be2dbf421169f5cbf2a63be7c09606bf1d0aad2 100644 (file)
--- a/bridges/bridge_native_rtp.c
+++ b/bridges/bridge_native_rtp.c
@@ -103,13 +103,17 @@ static enum ast_rtp_glue_result native_rtp_bridge_get(struct ast_channel *c0, st
                audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
        }
 
-       /* If any sort of bridge is forbidden just completely bail out and go back to generic bridging */
-       if (audio_glue0_res == AST_RTP_GLUE_RESULT_FORBID
-               || audio_glue1_res == AST_RTP_GLUE_RESULT_FORBID) {
+       /* The order of preference is: forbid, local, and remote. */
+       if (audio_glue0_res == AST_RTP_GLUE_RESULT_FORBID ||
+               audio_glue1_res == AST_RTP_GLUE_RESULT_FORBID) {
+               /* If any sort of bridge is forbidden just completely bail out and go back to generic bridging */
                return AST_RTP_GLUE_RESULT_FORBID;
+       } else if (audio_glue0_res == AST_RTP_GLUE_RESULT_LOCAL ||
+               audio_glue1_res == AST_RTP_GLUE_RESULT_LOCAL) {
+               return AST_RTP_GLUE_RESULT_LOCAL;
+       } else {
+               return AST_RTP_GLUE_RESULT_REMOTE;
        }
-
-       return audio_glue0_res;
 }
 
 /*!