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ZLMediaKit
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开始完善sdp解析

This commit is contained in:
xiongziliang 2018-10-25 18:50:18 +08:00
parent dc1ce6fe11
commit 062bdd6e02
2 changed files with 93 additions and 20 deletions
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112
src/Rtsp/Rtsp.cpp
View File

@ -50,6 +50,77 @@ string FindField(const char* buf, const char* start, const char *end ,int bufSiz
return string(msg_start, msg_end);
}
int parserSDP(const string& sdp, RtspTrack Track[2]) {
map<string,map<char ,map<string ,string> > > sdpAttr;
string sdpTrack = "";
auto lines = split(sdp,"\n");
for (auto &line : lines){
trim(line);
if(line.size() < 2){
continue;
}
if(line[1] != '='){
continue;
}
char opt = line[0];
string opt_val = line.substr(2);
switch (opt){
case 'o':
case 's':
case 'i':
case 'c':
case 't':{
sdpAttr[sdpTrack][opt][""] = opt_val;
}
break;
case 'm':{
sdpTrack = FindField(opt_val.data(), nullptr," ");
sdpAttr[sdpTrack][opt][""] = opt_val;
}
break;
case 'a':{
string attr = FindField(opt_val.data(), nullptr,":");
if(attr.empty()){
sdpAttr[sdpTrack][opt][opt_val] = opt_val;
}else{
sdpAttr[sdpTrack][opt][attr] = FindField(opt_val.data(),":", nullptr);
}
}
break;
default:
break;
}
}
for (auto &pr : sdpAttr) {
TrackType trackType = TrackInvalid;
if (pr.first == "video") {
trackType = TrackVideo;
} else if (pr.first == "audio") {
trackType = TrackAudio;
} else if (pr.first == "") {
//title
auto range = pr.second['a']["range"];
char name[16] = {0},start[16] = {0},end[16] = {0};
if (2 == sscanf(range.data(), "%15[^=]=%15[^-]-%15s", name, start, end)) {
}
DebugL << range;
continue;
} else {
continue;
}
auto rtpmap = pr.second['a']["rtpmap"];
int pt, samplerate;
char codec[16] = {0};
if (3 == sscanf(rtpmap.data(), "%d %15[^/]/%d", &pt, codec, &samplerate)) {
}
DebugL << codec;
}
int track_cnt = 0;
string::size_type pos_head = 0;
while ((pos_head = sdp.find("m=",pos_head)) != string::npos ) {
@ -79,26 +150,27 @@ int parserSDP(const string& sdp, RtspTrack Track[2]) {
}
return track_cnt;
}
//static onceToken s_token([](){
// string str = "v=0\n"
// "o=- 1001 1 IN IP4 192.168.0.22\n"
// "s=VCP IPC Realtime stream\n"
// "m=video 0 RTP/AVP 105\n"
// "c=IN IP4 192.168.0.22\n"
// "a=control:rtsp://192.168.0.22/media/video1/video\n"
// "a=rtpmap:105 H264/90000\n"
// "a=fmtp:105 profile-level-id=64001f; packetization-mode=1; sprop-parameter-sets=Z2QAH6wrUCgC3QgAAB9AAAYahCAA,aO4xsg==\n"
// "a=recvonly\n"
// "m=application 0 RTP/AVP 107\n"
// "c=IN IP4 192.168.0.22\n"
// "a=control:rtsp://192.168.0.22/media/video1/metadata\n"
// "a=rtpmap:107 vnd.onvif.metadata/90000\n"
// "a=fmtp:107 DecoderTag=h3c-v3 RTCP=0\n"
// "a=recvonly";
// RtspTrack track[2];
// parserSDP(str,track);
// track[0].inited=true;
//});
static onceToken s_token([](){
string str = "v=0\n"
"o=- 1001 1 IN IP4 192.168.0.22\n"
"s=VCP IPC Realtime stream\n"
"a=range:npt=0-\n"
"m=video 0 RTP/AVP 105\n"
"c=IN IP4 192.168.0.22\n"
"a=control:rtsp://192.168.0.22/media/video1/video\n"
"a=rtpmap:105 H264/90000\n"
"a=fmtp:105 profile-level-id=64001f; packetization-mode=1; sprop-parameter-sets=Z2QAH6wrUCgC3QgAAB9AAAYahCAA,aO4xsg==\n"
"a=recvonly\n"
"m=application 0 RTP/AVP 107\n"
"c=IN IP4 192.168.0.22\n"
"a=control:rtsp://192.168.0.22/media/video1/metadata\n"
"a=rtpmap:107 vnd.onvif.metadata/90000\n"
"a=fmtp:107 DecoderTag=h3c-v3 RTCP=0\n"
"a=recvonly";
RtspTrack track[2];
parserSDP(str,track);
track[0].inited=true;
});
bool MakeNalu(uint8_t in, NALU &nal) {
nal.forbidden_zero_bit = in >> 7;
if (nal.forbidden_zero_bit) {

1
src/Rtsp/Rtsp.h
View File

@ -50,6 +50,7 @@ public:
uint32_t ssrc = 0;
uint16_t seq;
uint32_t timeStamp;
uint32_t sampleRate;
};
class RtcpCounter {