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rtp_engine: Init a format-attribute module to its RFC defaults.

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Previously, format-attribute modules relied on an existing fmtp line in SDP
negotiation. However, fmtp is optional for several formats like the Opus Codec.
Now, the format-attribute module is called with an empty fmtp, which allows the
module to initialise itself to RFC defaults. Furthermore now, Asterisk is able
to differentiate between internally and externally created formats.

ASTERISK-25537 #close

Change-Id: I28f680cef7fdf51c0969ff8da71548edad72ec52
This commit is contained in:
Alexander Traud
2015-11-10 16:24:31 +01:00
parent f12ebe3584
commit 525c7ab780
1 changed files with 6 additions and 2 deletions
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8
main/rtp_engine.c
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@@ -973,9 +973,13 @@ int ast_rtp_codecs_payloads_set_rtpmap_type_rate(struct ast_rtp_codecs *codecs,
if (t->payload_type.asterisk_format
&& ast_format_cmp(t->payload_type.format, ast_format_g726) == AST_FORMAT_CMP_EQUAL
&& (options & AST_RTP_OPT_G726_NONSTANDARD)) {
new_type->format = ao2_bump(ast_format_g726_aal2);
new_type->format = ast_format_g726_aal2;
} else {
new_type->format = ao2_bump(t->payload_type.format);
new_type->format = t->payload_type.format;
}
if (new_type->format) {
/* SDP parsing automatically increases the reference count */
new_type->format = ast_format_parse_sdp_fmtp(new_type->format, "");
}
if (pt < AST_VECTOR_SIZE(&codecs->payload_mapping_tx)) {