Variant SDP::GetVideoTrack(uint32_t index, string uri) {
//1. Find the track
Variant track = GetTrack(index, "video");
if (track == V_NULL) {
FATAL("Video track index %u not found", index);
return Variant();
}
//2. Prepare the info
Variant result;
SDP_VIDEO_SERVER_IP(result) = (*this)[SDP_SESSION][SDP_O]["address"];
string control = track[SDP_A].GetValue("control", false);
if (control.find("rtsp") == 0)
SDP_VIDEO_CONTROL_URI(result) = control;
else
SDP_VIDEO_CONTROL_URI(result) = uri + "/" + control;
SDP_VIDEO_CODEC(result) = track[SDP_A].GetValue("rtpmap", false)["encodingName"];
if ((uint64_t) SDP_VIDEO_CODEC(result) != CODEC_VIDEO_AVC) {
FATAL("The only supported video codec is h264");
return Variant();
}
SDP_VIDEO_CODEC_H264_SPS(result) = track[SDP_A]
.GetValue("fmtp", false)
.GetValue("sprop-parameter-sets", false)["SPS"];
SDP_VIDEO_CODEC_H264_PPS(result) = track[SDP_A]
.GetValue("fmtp", false)
.GetValue("sprop-parameter-sets", false)["PPS"];
SDP_TRACK_GLOBAL_INDEX(result) = SDP_TRACK_GLOBAL_INDEX(track);
SDP_TRACK_IS_AUDIO(result) = (bool)false;
//3. Done
return result;
}
Variant SDP::GetVideoTrack(uint32_t index, string contentBase) {
//1. Find the track
Variant track = GetTrack(index, "video");
if (track == V_NULL) {
FATAL("Video track index %u not found", index);
return Variant();
}
//2. Prepare the info
Variant result;
SDP_VIDEO_SERVER_IP(result) = (*this)[SDP_SESSION][SDP_O]["address"];
string control = track[SDP_A].GetValue("control", false);
if (control.find("rtsp") == 0) {
SDP_VIDEO_CONTROL_URI(result) = control;
} else {
if ((contentBase != "") && (contentBase[contentBase.size() - 1] != '/')) {
contentBase += "/";
}
SDP_VIDEO_CONTROL_URI(result) = contentBase + control;
}
SDP_VIDEO_CODEC(result) = track[SDP_A].GetValue("rtpmap", false)["encodingName"];
if ((uint64_t) SDP_VIDEO_CODEC(result) != CODEC_VIDEO_H264) {
FATAL("The only supported video codec is h264");
return Variant();
}
SDP_VIDEO_CODEC_H264_SPS(result) = track[SDP_A]
.GetValue("fmtp", false)
.GetValue("sprop-parameter-sets", false)["SPS"];
SDP_VIDEO_CODEC_H264_PPS(result) = track[SDP_A]
.GetValue("fmtp", false)
.GetValue("sprop-parameter-sets", false)["PPS"];
SDP_TRACK_GLOBAL_INDEX(result) = SDP_TRACK_GLOBAL_INDEX(track);
SDP_TRACK_IS_AUDIO(result) = (bool)false;
if (track.HasKeyChain(V_UINT32, false, 1, SDP_B))
SDP_TRACK_BANDWIDTH(result) = track[SDP_B];
else
SDP_TRACK_BANDWIDTH(result) = (uint32_t) 0;
SDP_TRACK_CLOCKRATE(result) = track[SDP_A].GetValue("rtpmap", false)["clockRate"];
//3. Done
return result;
}