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extmap支持方向

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This commit is contained in:
xiongziliang
2021-03-29 00:12:20 +08:00
parent e670099192
commit 1228d07ff3
2 changed files with 15 additions and 5 deletions
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17
webrtc/Sdp.cpp
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@@ -447,15 +447,24 @@ string SdpAttrSetup::toString() const {
void SdpAttrExtmap::parse(const string &str) {
char buf[128] = {0};
if (sscanf(str.data(), "%" PRId32 " %127s", &index, buf) != 2) {
SDP_THROW();
char direction_buf[32] = {0};
if (sscanf(str.data(), "%" PRId32 "/%31[^ ] %127s", &index, direction_buf, buf) != 3) {
if (sscanf(str.data(), "%" PRId32 " %127s", &index, buf) != 2) {
SDP_THROW();
}
} else {
direction = getRtpDirection(direction_buf);
}
ext = buf;
}
string SdpAttrExtmap::toString() const {
if (value.empty()) {
value = to_string(index) + " " + ext;
if(direction == RtpDirection::invalid){
value = to_string(index) + " " + ext;
} else {
value = to_string(index) + "/" + getRtpDirectionString(direction) + " " + ext;
}
}
return SdpItem::toString();
}
@@ -693,7 +702,7 @@ void test_sdp(){
"a=fingerprint:sha-256 22:14:B5:AF:66:12:C7:C7:8D:EF:4B:DE:40:25:ED:5D:8F:17:54:DD:88:33:C0:13:2E:FD:1A:FA:7E:7A:1B:79\n"
"a=setup:actpass\n"
"a=mid:audio\n"
"a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\n"
"a=extmap:1/sendonly urn:ietf:params:rtp-hdrext:ssrc-audio-level\n"
"a=sendrecv\n"
"a=rtcp-mux\n"
"a=rtpmap:111 opus/48000/2\n"