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res/res_pjsip: Add preferred_codec_only config to pjsip endpoint.

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This patch add config to pjsip by endpoint.
;preferred_codec_only=yes
; Respond to a SIP invite with the single most preferred codec
; rather than advertising all joint codec capabilities. This
; limits the other side's codec choice to exactly what we prefer.

ASTERISK-26317 #close
Reported by: AaronAn
Tested by: AaronAn

Change-Id: Iad04dc55055403bbf5ec050997aee2dadc4f0762
This commit is contained in:
Aaron An
2016-08-30 11:26:03 +08:00
committed by Joshua Colp
parent d3c4b901d4
commit 2a50c29101
8 changed files with 63 additions and 4 deletions
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9
res/res_pjsip_sdp_rtp.c
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@@ -360,8 +360,13 @@ static int set_caps(struct ast_sip_session *session,
ast_format_cap_append_from_cap(caps, ast_channel_nativeformats(session->channel),
AST_MEDIA_TYPE_UNKNOWN);
ast_format_cap_remove_by_type(caps, media_type);
ast_format_cap_append_from_cap(caps, joint, media_type);
if (session->endpoint->preferred_codec_only){
struct ast_format *preferred_fmt = ast_format_cap_get_format(joint, 0);
ast_format_cap_append(caps, preferred_fmt, 0);
ao2_ref(preferred_fmt, -1);
} else {
ast_format_cap_append_from_cap(caps, joint, media_type);
}
/*
* Apply the new formats to the channel, potentially changing
* raw read/write formats and translation path while doing so.