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Bug 1433005 - Simplify codec pruning in NegotiateCodecs. r=bwc, a=lizzard

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--HG--
extra : source : 90ae99509f1e9cb5bdf19350a5fbb1a02d34ff0a
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Dan Minor 2018-01-26 11:46:51 -05:00 • committed by Roy Tam
commit 62821e5092
1 changed files with 17 additions and 12 deletions
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29
media/webrtc/signaling/src/jsep/JsepTrack.cpp
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@ -410,21 +410,26 @@ JsepTrack::NegotiateCodecs(
// TODO(bug 814227): Remove this once we're ready to put multiple codecs in an
// answer. For now, remove all but the first codec unless the red codec
// exists, and then we include the others per RFC 5109, section 14.2.
// Note: now allows keeping the telephone-event codec, if it appears, as the
// last codec in the list.
// exists, in which case we include the others per RFC 5109, section 14.2.
if (!codecs->empty() && !red) {
int newSize = dtmf ? 2 : 1;
for (size_t i = 1; i < codecs->size(); ++i) {
if (!dtmf || dtmf != (*codecs)[i]) {
delete (*codecs)[i];
(*codecs)[i] = nullptr;
std::vector<JsepCodecDescription*> codecsToKeep;
bool foundPreferredCodec = false;
for (auto codec: *codecs) {
if (codec == dtmf) {
codecsToKeep.push_back(codec);
// TODO: keep ulpfec when we enable it in Bug 875922
// } else if (codec == ulpfec) {
// codecsToKeep.push_back(codec);
} else if (!foundPreferredCodec) {
codecsToKeep.insert(codecsToKeep.begin(), codec);
foundPreferredCodec = true;
} else {
delete codec;
}
}
if (dtmf) {
(*codecs)[newSize-1] = dtmf;
}
codecs->resize(newSize);
*codecs = codecsToKeep;
}
}