/*
* Copyright (C) 2012-2018 Doubango Telecom <http://www.doubango.org>
* License: BSD
* This file is part of Open Source sipML5 solution <http://www.sipml5.org>
*/
var tsdp_path = DispatchLibPath+"tinySDP/"
function tsdp_api_add_js_scripts(s_elt) {
var tag_hdr = document.getElementsByTagName(s_elt)[0];
for (var i = 1; i < arguments.length; ++i) {
var tag_script = document.createElement('script');
tag_script.setAttribute('type', 'text/javascript');
tag_script.setAttribute('src', arguments[i]);
tag_hdr.appendChild(tag_script);
}
};
// add tinySAK API
tsdp_api_add_js_scripts('head', tsdp_path + 'tsk/tsk_api.js');
tsdp_api_add_js_scripts('head',
tsdp_path + 'headers/tsdp_header.js',
// tsdp_path + 'headers/tsdp_header_A.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_B.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_C.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_Dummy.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_E.js', #see<tsdp_header_Str.js>
// tsdp_path + 'headers/tsdp_header_I.js', #see<tsdp_header_Str.js>
// tsdp_path + 'headers/tsdp_header_K.js', #see<tsdp_header_Str.js>
// tsdp_path + 'headers/tsdp_header_M.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_O.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_P.js', #see<tsdp_header_Str.js>
// tsdp_path + 'headers/tsdp_header_R.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_S.js', #see<tsdp_header_Str.js>
// tsdp_path + 'headers/tsdp_header_Str.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_T.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_U.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_V.js', #include_in<tsdp_header.js>
// tsdp_path + 'headers/tsdp_header_Z.js' #include_in<tsdp_header.js>
tsdp_path + 'tsdp_message.js'
//'src/tinySDP/src/tsdp_parser_message.js' #include_in<tsdp_message.js>
);
var changesdp = function(peersdp, videocandidates, audiocandidates){
var sdp = peersdp;
var tsdp = tsdp_message.prototype.Parse(sdp);
for (var i = 0; i < tsdp.ao_headers.length; ++i){
if (tsdp.ao_headers[i] &&
tsdp.ao_headers[i].e_type.c_name == "s")
{
tsdp.ao_headers[i].s_value = "webrtc";
break;
}
}
var opus_pt = 0;
var m_audio = tsdp.get_header_m_by_name("audio");
if (m_audio)
{
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i){
if (m_audio.ao_hdr_A[i] &&
m_audio.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("opus") == 0)
{
opus_pt = substr_array[0];
break;
}
}
}
console.log('opus_pt ' + opus_pt);
m_audio.as_fmt = new Array();
m_audio.as_fmt[0] = opus_pt.toString();
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i){
if (m_audio.ao_hdr_A[i] &&
(m_audio.ao_hdr_A[i].s_field == "rtpmap" ||
m_audio.ao_hdr_A[i].s_field == "fmtp" ||
m_audio.ao_hdr_A[i].s_field == "rtcp-fb" ||
m_audio.ao_hdr_A[i].s_field == "extmap"))
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (!(substr_array &&
substr_array[0] == opus_pt))
{
m_audio.ao_hdr_A[i] = null;
}
}
}
//m_audio.s_proto = "RTP/AVP";
for (var i = 0; i < audiocandidates.length; ++i){
var a = tsdp_header_A.prototype.Parse(audiocandidates[i]);
m_audio.ao_hdr_A.push(a);
}
}
//video
var h264_pt_array = new Array;
var h264_pt = 0;
var m_video = tsdp.get_header_m_by_name("video");
if (m_video)
{
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("H264") == 0)
{
h264_pt_array.push(substr_array[0]);
}
}
}
//"level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f"
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "fmtp")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array && substr_array[0] && substr_array[1])
{
for (var j = 0; j < h264_pt_array.length; ++j)
{
if (substr_array[0] == h264_pt_array[j] &&
substr_array[1].indexOf("packetization-mode=1") != -1 &&
substr_array[1].indexOf("profile-level-id=42e0") != -1)
{
//优先Baseline
h264_pt = substr_array[0];
break;
}
}
}
}
if (h264_pt)
{
break;
}
}
if (h264_pt == 0)
{
h264_pt = h264_pt_array[0];
}
console.log('h264_pt ' + h264_pt);
m_video.as_fmt = new Array();
m_video.as_fmt[0] = h264_pt.toString();
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
(m_video.ao_hdr_A[i].s_field == "rtpmap" ||
m_video.ao_hdr_A[i].s_field == "fmtp" ||
m_video.ao_hdr_A[i].s_field == "rtcp-fb" ||
m_video.ao_hdr_A[i].s_field == "extmap"))
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (!(substr_array &&
substr_array[0] == h264_pt))
{
m_video.ao_hdr_A[i] = null;
}
}
}
//m_video.s_proto = "RTP/AVP";
for (var i = 0; i < videocandidates.length; ++i){
var a = tsdp_header_A.prototype.Parse(videocandidates[i]);
m_video.ao_hdr_A.push(a);
}
}
return tsdp.toString();
}
var changesdp_local = function(localsdp){
var sdp = localsdp;
var tsdp = tsdp_message.prototype.Parse(sdp);
for (var i = 0; i < tsdp.ao_headers.length; ++i){
if (tsdp.ao_headers[i] &&
tsdp.ao_headers[i].e_type.c_name == "s")
{
tsdp.ao_headers[i].s_value = "webrtc";
break;
}
}
var opus_pt = 0;
var m_audio = tsdp.get_header_m_by_name("audio");
if (m_audio)
{
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i){
if (m_audio.ao_hdr_A[i] &&
m_audio.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("opus") == 0)
{
opus_pt = substr_array[0];
break;
}
}
}
console.log('opus_pt ' + opus_pt);
m_audio.as_fmt = new Array();
m_audio.as_fmt[0] = opus_pt.toString();
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i){
if (m_audio.ao_hdr_A[i] &&
(m_audio.ao_hdr_A[i].s_field == "rtpmap" ||
m_audio.ao_hdr_A[i].s_field == "fmtp" ||
m_audio.ao_hdr_A[i].s_field == "rtcp-fb" ||
m_audio.ao_hdr_A[i].s_field == "extmap"))
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (!(substr_array &&
substr_array[0] == opus_pt))
{
m_audio.ao_hdr_A[i] = null;
}
}
}
}
//video
var h264_pt_array = new Array;
var h264_pt = 0;
var m_video = tsdp.get_header_m_by_name("video");
if (m_video)
{
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("H264") == 0)
{
h264_pt_array.push(substr_array[0]);
}
}
}
//"level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f"
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "fmtp")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array && substr_array[0] && substr_array[1])
{
for (var j = 0; j < h264_pt_array.length; ++j)
{
if (substr_array[0] == h264_pt_array[j] &&
substr_array[1].indexOf("packetization-mode=1") != -1 &&
substr_array[1].indexOf("profile-level-id=42e0") != -1)
{
//优先Baseline
h264_pt = substr_array[0];
break;
}
}
}
}
if (h264_pt)
{
break;
}
}
if (h264_pt == 0)
{
h264_pt = h264_pt_array[0];
}
console.log('h264_pt ' + h264_pt);
m_video.as_fmt = new Array();
m_video.as_fmt[0] = h264_pt.toString();
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
(m_video.ao_hdr_A[i].s_field == "rtpmap" ||
m_video.ao_hdr_A[i].s_field == "fmtp" ||
m_video.ao_hdr_A[i].s_field == "rtcp-fb" ||
m_video.ao_hdr_A[i].s_field == "extmap"))
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (!(substr_array &&
substr_array[0] == h264_pt))
{
m_video.ao_hdr_A[i] = null;
}
}
}
}
return tsdp.toString();
}
var compressLocalSdp = function(peersdp, videocandidates, audiocandidates){
var sdp = peersdp;
var tsdp = tsdp_message.prototype.Parse(sdp);
var msid_semantic_index = -1;
for (var i = 0; i < tsdp.ao_headers.length; ++i){
if (tsdp.ao_headers[i])
{
if (tsdp.ao_headers[i].e_type.c_name == "s")
{
tsdp.ao_headers[i].s_value = "webrtc-dc";
}
else if (tsdp.ao_headers[i].e_type.c_name == "a" &&
tsdp.ao_headers[i].s_field == "msid-semantic")
{
tsdp.ao_headers[i] = null;
msid_semantic_index = i;
}
}
}
var ice_ufrag = null; //ice-ufrag
var ice_pwd = null; //ice-pwd
var ice_options = null; //ice-options
var fingerprint = null; //fingerprint
var setup = null; //setup
var opus_pt = 0;
var m_audio = tsdp.get_header_m_by_name("audio");
if (m_audio)
{
m_audio.o_hdr_C = null;
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i){
if (m_audio.ao_hdr_A[i] &&
m_audio.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("opus") == 0)
{
opus_pt = substr_array[0];
break;
}
}
}
console.log('opus_pt ' + opus_pt);
m_audio.as_fmt = new Array();
m_audio.as_fmt[0] = opus_pt.toString();
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i)
{
if (m_audio.ao_hdr_A[i])
{
if (m_audio.ao_hdr_A[i].s_field == "rtcp" ||
m_audio.ao_hdr_A[i].s_field == "rtcp-mux" ||
m_audio.ao_hdr_A[i].s_field == "rtcp-rsize" ||
m_audio.ao_hdr_A[i].s_field == "rtcp-fb" ||
m_audio.ao_hdr_A[i].s_field == "fmtp" ||
m_audio.ao_hdr_A[i].s_field == "extmap")
{
m_audio.ao_hdr_A[i] = null;
}
else if (m_audio.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (!(substr_array &&
substr_array[0] == opus_pt))
{
m_audio.ao_hdr_A[i] = null;
}
}
else if (m_audio.ao_hdr_A[i].s_field == "ice-ufrag")
{
ice_ufrag = m_audio.ao_hdr_A[i];
m_audio.ao_hdr_A[i] = null;
}
else if (m_audio.ao_hdr_A[i].s_field == "ice-pwd")
{
ice_pwd = m_audio.ao_hdr_A[i];
m_audio.ao_hdr_A[i] = null;
}
else if (m_audio.ao_hdr_A[i].s_field == "ice-options")
{
ice_options = m_audio.ao_hdr_A[i];
m_audio.ao_hdr_A[i] = null;
}
else if (m_audio.ao_hdr_A[i].s_field == "fingerprint")
{
fingerprint = m_audio.ao_hdr_A[i];
m_audio.ao_hdr_A[i] = null;
}
else if (m_audio.ao_hdr_A[i].s_field == "setup")
{
setup = m_audio.ao_hdr_A[i];
m_audio.ao_hdr_A[i] = null;
}
}
}
for (var i = 0; i < audiocandidates.length; ++i){
var a = tsdp_header_A.prototype.Parse(audiocandidates[i]);
m_audio.ao_hdr_A.push(a);
}
}
//video
var h264_pt_array = new Array;
var h264_pt = 0;
var m_video = tsdp.get_header_m_by_name("video");
if (m_video)
{
m_video.o_hdr_C = null;
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("H264") == 0)
{
h264_pt_array.push(substr_array[0]);
}
}
}
//"level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f"
for (var i = 0; i < m_video.ao_hdr_A.length; ++i){
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "fmtp")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array && substr_array[0] && substr_array[1])
{
for (var j = 0; j < h264_pt_array.length; ++j)
{
if (substr_array[0] == h264_pt_array[j] &&
substr_array[1].indexOf("packetization-mode=1") != -1 &&
substr_array[1].indexOf("profile-level-id=42e0") != -1)
//substr_array[1].indexOf("profile-level-id=6400") != -1)
{
//优先Baseline
h264_pt = substr_array[0];
break;
}
}
}
}
if (h264_pt)
{
break;
}
}
if (h264_pt == 0)
{
h264_pt = h264_pt_array[0];
}
console.log('h264_pt ' + h264_pt);
m_video.as_fmt = new Array();
m_video.as_fmt[0] = h264_pt.toString();
for (var i = 0; i < m_video.ao_hdr_A.length; ++i)
{
if (m_video.ao_hdr_A[i])
{
if (m_video.ao_hdr_A[i].s_field == "rtcp" ||
m_video.ao_hdr_A[i].s_field == "rtcp-mux" ||
m_video.ao_hdr_A[i].s_field == "rtcp-rsize" ||
m_video.ao_hdr_A[i].s_field == "rtcp-fb" ||
m_video.ao_hdr_A[i].s_field == "fmtp" ||
m_video.ao_hdr_A[i].s_field == "extmap" )
{
m_video.ao_hdr_A[i] = null;
}
else if (m_video.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (!(substr_array &&
substr_array[0] == h264_pt))
{
m_video.ao_hdr_A[i] = null;
}
}
else if (m_video.ao_hdr_A[i].s_field == "ice-ufrag")
{
ice_ufrag = m_video.ao_hdr_A[i];
m_video.ao_hdr_A[i] = null;
}
else if (m_video.ao_hdr_A[i].s_field == "ice-pwd")
{
ice_pwd = m_video.ao_hdr_A[i];
m_video.ao_hdr_A[i] = null;
}
else if (m_video.ao_hdr_A[i].s_field == "ice-options")
{
ice_options = m_video.ao_hdr_A[i];
m_video.ao_hdr_A[i] = null;
}
else if (m_video.ao_hdr_A[i].s_field == "fingerprint")
{
fingerprint = m_video.ao_hdr_A[i];
m_video.ao_hdr_A[i] = null;
}
else if (m_video.ao_hdr_A[i].s_field == "setup")
{
setup = m_video.ao_hdr_A[i];
m_video.ao_hdr_A[i] = null;
}
}
}
for (var i = 0; i < videocandidates.length; ++i){
var a = tsdp_header_A.prototype.Parse(videocandidates[i]);
m_video.ao_hdr_A.push(a);
}
}
tsdp.ao_headers.splice(msid_semantic_index, 0, ice_ufrag);
msid_semantic_index++;
tsdp.ao_headers.splice(msid_semantic_index, 0, ice_pwd);
msid_semantic_index++;
tsdp.ao_headers.splice(msid_semantic_index, 0, ice_options);
msid_semantic_index++;
tsdp.ao_headers.splice(msid_semantic_index, 0, fingerprint);
msid_semantic_index++;
tsdp.ao_headers.splice(msid_semantic_index, 0, setup);
msid_semantic_index++;
return tsdp.toString();
}
var decompressRemoteSdp = function(localsdp)
{
var sdp = localsdp;
var tsdp = tsdp_message.prototype.Parse(sdp);
var ice_ufrag = null; //ice-ufrag
var ice_pwd = null; //ice-pwd
var fingerprint = null; //fingerprint
var setup = null; //setup
var candidates = new Array;
for (var i = 0; i < tsdp.ao_headers.length; ++i)
{
if (tsdp.ao_headers[i])
{
if (tsdp.ao_headers[i].e_type.c_name == "s")
{
tsdp.ao_headers[i].s_value = "webrtc";
}
else if (tsdp.ao_headers[i].e_type.c_name == "a")
{
if (tsdp.ao_headers[i].s_field == "ice-ufrag")
{
ice_ufrag = tsdp.ao_headers[i];
tsdp.ao_headers[i] = null;
}
else if (tsdp.ao_headers[i].s_field == "ice-pwd")
{
ice_pwd = tsdp.ao_headers[i];
tsdp.ao_headers[i] = null;
}
else if (tsdp.ao_headers[i].s_field == "fingerprint")
{
fingerprint = tsdp.ao_headers[i];
tsdp.ao_headers[i] = null;
}
else if (tsdp.ao_headers[i].s_field == "setup")
{
setup = tsdp.ao_headers[i];
tsdp.ao_headers[i] = null;
}
else if (tsdp.ao_headers[i].s_field == "candidate")
{
candidates.push(tsdp.ao_headers[i]);
tsdp.ao_headers[i] = null;
}
}
}
}
var opus_pt = 0;
var m_audio = tsdp.get_header_m_by_name("audio");
if (m_audio)
{
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i)
{
if (m_audio.ao_hdr_A[i] &&
m_audio.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_audio.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("opus") == 0)
{
var rtcp = new tsdp_header_A("rtcp", "9 IN IP4 0.0.0.0");
m_audio.ao_hdr_A.splice(i, 0, rtcp);
var rtcp_mux = new tsdp_header_A("rtcp-mux", null);
m_audio.ao_hdr_A.splice(i, 0, rtcp_mux);
opus_pt = substr_array[0];
var fmtp = new tsdp_header_A("fmtp", opus_pt +" minptime=10;useinbandfec=1");
m_audio.ao_hdr_A.splice(i+3, 0, fmtp);
m_audio.ao_hdr_A.splice(i+4, 0, ice_ufrag);
m_audio.ao_hdr_A.splice(i+5, 0, ice_pwd);
m_audio.ao_hdr_A.splice(i+6, 0, fingerprint);
m_audio.ao_hdr_A.splice(i+7, 0, setup);
break;
}
}
}
for (var i = 0; i < m_audio.ao_hdr_A.length; ++i)
{
if (m_audio.ao_hdr_A[i] &&
m_audio.ao_hdr_A[i].s_field == "ssrc")
{
for (var j = 0; j < candidates.length; ++j)
{
m_audio.ao_hdr_A.splice(i+1+j, 0, candidates[j]);
}
}
}
}
var h264_pt = 0;
var m_video = tsdp.get_header_m_by_name("video");
if (m_video)
{
for (var i = 0; i < m_video.ao_hdr_A.length; ++i)
{
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "rtpmap")
{
var substr_array = m_video.ao_hdr_A[i].s_value.split(" ");
if (substr_array &&
substr_array[1] &&
substr_array[1].indexOf("H264") == 0)
{
var rtcp = new tsdp_header_A("rtcp", "9 IN IP4 0.0.0.0");
m_video.ao_hdr_A.splice(i, 0, rtcp);
var rtcp_mux = new tsdp_header_A("rtcp-mux", null);
m_video.ao_hdr_A.splice(i, 0, rtcp_mux);
h264_pt = substr_array[0];
m_video.ao_hdr_A.splice(i+3, 0, new tsdp_header_A("rtcp-fb", h264_pt +" goog-remb"));
m_video.ao_hdr_A.splice(i+4, 0, new tsdp_header_A("rtcp-fb", h264_pt +" ccm fir"));
m_video.ao_hdr_A.splice(i+5, 0, new tsdp_header_A("rtcp-fb", h264_pt +" nack"));
m_video.ao_hdr_A.splice(i+6, 0, new tsdp_header_A("rtcp-fb", h264_pt +" nack pli"));
var fmtp = new tsdp_header_A("fmtp", h264_pt +" level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f");
//var fmtp = new tsdp_header_A("fmtp", h264_pt +" level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=64001f");
m_video.ao_hdr_A.splice(i+7, 0, fmtp);
m_video.ao_hdr_A.splice(i+8, 0, ice_ufrag);
m_video.ao_hdr_A.splice(i+9, 0, ice_pwd);
m_video.ao_hdr_A.splice(i+10, 0, fingerprint);
m_video.ao_hdr_A.splice(i+11, 0, setup);
break;
}
}
}
for (var i = 0; i < m_video.ao_hdr_A.length; ++i)
{
if (m_video.ao_hdr_A[i] &&
m_video.ao_hdr_A[i].s_field == "ssrc")
{
for (var j = 0; j < candidates.length; ++j)
{
m_video.ao_hdr_A.splice(i+1+j, 0, candidates[j]);
}
}
}
}
return tsdp.toString();
}
