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比对codec失败时，先关闭profile比对，再关闭codec比对

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This commit is contained in:
xiongziliang 2021-04-06 23:47:54 +08:00
parent b5e6c12ee8
commit 79267ae551
1 changed files with 16 additions and 11 deletions
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27
webrtc/Sdp.cpp
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@ -1342,7 +1342,8 @@ void RtcConfigure::matchMedia(shared_ptr<RtcSession> &ret, TrackType type, const
if (!configure.enable) {
return;
}
bool failed = false;
bool check_profile = true;
bool check_codec = true;
RETRY:
@ -1357,15 +1358,13 @@ RETRY:
}
const RtcCodecPlan *offer_plan_ptr = nullptr;
for (auto &plan : offer_media.plan) {
if (getCodecId(plan.codec) != codec) {
//先检查编码格式是否为偏好
if (check_codec && getCodecId(plan.codec) != codec) {
continue;
}
//如果匹配失败了，那么随便选择一个plan
if (!failed) {
//命中偏好的编码格式
if (!onMatchCodecPlan(plan, codec)) {
continue;
}
//命中偏好的编码格式,然后检查规格
if (check_profile && !onCheckCodecProfile(plan, codec)) {
continue;
}
//找到中意的codec
offer_plan_ptr = &plan;
@ -1495,9 +1494,15 @@ RETRY:
}
}
if (!failed) {
//只重试一次
failed = true;
if (check_profile) {
//如果是由于检查profile导致匹配失败，那么重试一次，且不检查profile
check_profile = false;
goto RETRY;
}
if (check_codec) {
//如果是由于检查codec导致匹配失败，那么重试一次，且不检查codec
check_codec = false;
goto RETRY;
}
}