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提高rtsp客户端兼容性

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This commit is contained in:
xiongziliang 2020-01-14 18:11:10 +08:00
parent 2b511a05cc
commit a573d7302b
2 changed files with 100 additions and 79 deletions
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103
src/Rtsp/Rtsp.cpp
View File

@ -85,20 +85,38 @@ string SdpTrack::toString() const {
}
return _printer;
}
static TrackType toTrackType(const string &str) {
if (str == "") {
return TrackTitle;
}
if (str == "video") {
return TrackVideo;
}
if (str == "audio") {
return TrackAudio;
}
return TrackInvalid;
}
void SdpParser::load(const string &sdp) {
_track_map.clear();
{
_track_vec.clear();
string key;
SdpTrack::Ptr track = std::make_shared<SdpTrack>();
auto lines = split(sdp,"\n");
for (auto &line : lines){
auto lines = split(sdp, "\n");
for (auto &line : lines) {
trim(line);
if(line.size() < 2 || line[1] != '='){
if (line.size() < 2 || line[1] != '=') {
continue;
}
char opt = line[0];
string opt_val = line.substr(2);
switch (opt){
switch (opt) {
case 'o':
track->_o = opt_val;
break;
@ -117,19 +135,20 @@ void SdpParser::load(const string &sdp) {
case 'b':
track->_b = opt_val;
break;
case 'm':{
_track_map[key] = track;
case 'm': {
track->_type = toTrackType(key);
_track_vec.emplace_back(track);
track = std::make_shared<SdpTrack>();
key = FindField(opt_val.data(), nullptr," ");
key = FindField(opt_val.data(), nullptr, " ");
track->_m = opt_val;
}
break;
case 'a':{
string attr = FindField(opt_val.data(), nullptr,":");
if(attr.empty()){
case 'a': {
string attr = FindField(opt_val.data(), nullptr, ":");
if (attr.empty()) {
track->_attr[opt_val] = "";
}else{
track->_attr[attr] = FindField(opt_val.data(),":", nullptr);
} else {
track->_attr[attr] = FindField(opt_val.data(), ":", nullptr);
}
}
break;
@ -138,21 +157,12 @@ void SdpParser::load(const string &sdp) {
break;
}
}
_track_map[key] = track;
for (auto &pr : _track_map) {
auto &track = *pr.second;
if (pr.first == "") {
track._type = TrackTitle;
} else if (pr.first == "video") {
track._type = TrackVideo;
} else if (pr.first == "audio") {
track._type = TrackAudio;
} else {
track._type = TrackInvalid;
track->_type = toTrackType(key);
_track_vec.emplace_back(track);
}
for (auto &track_ptr : _track_vec) {
auto &track = *track_ptr;
auto it = track._attr.find("range");
if (it != track._attr.end()) {
char name[16] = {0}, start[16] = {0}, end[16] = {0};
@ -198,9 +208,9 @@ bool SdpParser::available() const {
}
SdpTrack::Ptr SdpParser::getTrack(TrackType type) const {
for (auto &pr : _track_map){
if(pr.second->_type == type){
return pr.second;
for (auto &track : _track_vec){
if(track->_type == type){
return track;
}
}
return nullptr;
@ -208,31 +218,42 @@ SdpTrack::Ptr SdpParser::getTrack(TrackType type) const {
vector<SdpTrack::Ptr> SdpParser::getAvailableTrack() const {
vector<SdpTrack::Ptr> ret;
auto video = getTrack(TrackVideo);
if(video){
ret.emplace_back(video);
bool audio_added = false;
bool video_added = false;
for (auto &track : _track_vec){
if(track->_type == TrackAudio ){
if(!audio_added){
ret.emplace_back(track);
audio_added = true;
}
auto audio = getTrack(TrackAudio);
if(audio){
ret.emplace_back(audio);
continue;
}
return ret;
if(track->_type == TrackVideo ){
if(!video_added){
ret.emplace_back(track);
video_added = true;
}
continue;
}
}
return std::move(ret);
}
string SdpParser::toString() const {
string title,audio,video;
for(auto &pr : _track_map){
switch (pr.second->_type){
for(auto &track : _track_vec){
switch (track->_type){
case TrackTitle:{
title = pr.second->toString();
title = track->toString();
}
break;
case TrackVideo:{
video = pr.second->toString();
video = track->toString();
}
break;
case TrackAudio:{
audio = pr.second->toString();
audio = track->toString();
}
break;
default:

2
src/Rtsp/Rtsp.h
View File

@ -122,7 +122,7 @@ public:
vector<SdpTrack::Ptr> getAvailableTrack() const;
string toString() const ;
private:
map<string, SdpTrack::Ptr> _track_map;
vector<SdpTrack::Ptr> _track_vec;
};
/**