/// Sends a string in chunked format if protocol is HTTP/1.1, sends as-is otherwise.
/// \param data The data to send.
/// \param size The size of the data to send.
/// \param conn The connection to use for sending.
void HTTP::Parser::Chunkify(const char * data, unsigned int size, Socket::Connection & conn) {
static char hexa[] = "0123456789abcdef";
if (bufferChunks){
if (size){
body.append(data, size);
}else{
SetHeader("Content-Length", body.length());
SendResponse("200", "OK", conn);
Clean();
}
return;
}
if (sendingChunks) {
//prepend the chunk size and \r\n
if (!size){
conn.SendNow("0\r\n\r\n\r\n", 7);
}
size_t offset = 8;
unsigned int t_size = size;
char len[] = "\000\000\000\000\000\000\0000\r\n";
while (t_size && offset < 9){
len[--offset] = hexa[t_size & 0xf];
t_size >>= 4;
}
conn.SendNow(len+offset, 10-offset);
//send the chunk itself
conn.SendNow(data, size);
//append \r\n
conn.SendNow("\r\n", 2);
} else {
///\brief Sends a RTMP command either in AMF or AMF3 mode.
///\param amfReply The data to be sent over RTMP.
///\param messageType The type of message.
///\param streamId The ID of the AMF stream.
void sendCommand(AMF::Object & amfReply, int messageType, int streamId){
#if DEBUG >= 8
std::cerr << amfReply.Print() << std::endl;
#endif
if (messageType == 17){
Socket.SendNow(RTMPStream::SendChunk(3, messageType, streamId, (char)0 + amfReply.Pack()));
}else{
Socket.SendNow(RTMPStream::SendChunk(3, messageType, streamId, amfReply.Pack()));
}
} //sendCommand
/// Creates and sends a valid HTTP 1.0 or 1.1 request.
/// The request is build from internal variables set before this call is made.
/// To be precise, method, url, protocol, headers and body are used.
void HTTP::Parser::SendRequest(Socket::Connection & conn) {
/// \todo Include GET/POST variable parsing?
std::map<std::string, std::string>::iterator it;
if (protocol.size() < 5 || protocol[4] != '/') {
protocol = "HTTP/1.0";
}
builder = method + " " + url + " " + protocol + "\r\n";
conn.SendNow(builder);
for (it = headers.begin(); it != headers.end(); it++) {
if ((*it).first != "" && (*it).second != "") {
builder = (*it).first + ": " + (*it).second + "\r\n";
conn.SendNow(builder);
}
}
conn.SendNow("\r\n", 2);
conn.SendNow(body);
}
///\brief Contains the main code for the RAW connector.
///
///Expects a single commandline argument telling it which stream to connect to,
///then outputs the raw stream to stdout.
int main(int argc, char ** argv){
Util::Config conf(argv[0], PACKAGE_VERSION);
JSON::Value capa;
conf.addBasicConnectorOptions(capa);
conf.addOption("stream_name", JSON::fromString("{\"arg_num\":1, \"help\":\"Name of the stream to write to stdout.\"}"));
conf.parseArgs(argc, argv);
if (conf.getBool("json")){
std::cout << "null" << std::endl;
return -1;
}
//connect to the proper stream
Socket::Connection S = Util::Stream::getStream(conf.getString("stream_name"));
S.setBlocking(false);
if ( !S.connected()){
std::cout << "Could not open stream " << conf.getString("stream_name") << std::endl;
return 1;
}
long long int lastStats = 0;
long long int started = Util::epoch();
while (std::cout.good()){
if (S.spool()){
while (S.Received().size()){
std::cout.write(S.Received().get().c_str(), S.Received().get().size());
S.Received().get().clear();
}
}else{
Util::sleep(10); //sleep 10ms if no data
}
unsigned int now = Util::epoch();
if (now != lastStats){
lastStats = now;
std::stringstream st;
st << "S localhost RAW " << (Util::epoch() - started) << " " << S.dataDown() << " " << S.dataUp() << "\n";
S.SendNow(st.str().c_str());
}
}
std::stringstream st;
st << "S localhost RAW " << (Util::epoch() - started) << " " << S.dataDown() << " " << S.dataUp() << "\n";
S.SendNow(st.str().c_str());
S.close();
return 0;
}
/// Creates and sends a valid HTTP 1.0 or 1.1 response.
/// The response is partly build from internal variables set before this call is made.
/// To be precise, protocol, headers and body are used.
/// This call will attempt to buffer as little as possible and block until the whole request is sent.
/// \param code The HTTP response code. Usually you want 200.
/// \param message The HTTP response message. Usually you want "OK".
/// \param conn The Socket::Connection to send the response over.
void HTTP::Parser::SendResponse(std::string code, std::string message, Socket::Connection & conn) {
/// \todo Include GET/POST variable parsing?
std::map<std::string, std::string>::iterator it;
if (protocol.size() < 5 || protocol[4] != '/') {
protocol = "HTTP/1.0";
}
builder = protocol + " " + code + " " + message + "\r\n";
conn.SendNow(builder);
for (it = headers.begin(); it != headers.end(); it++) {
if ((*it).first != "" && (*it).second != "") {
if ((*it).first != "Content-Length" || (*it).second != "0") {
builder = (*it).first + ": " + (*it).second + "\r\n";
conn.SendNow(builder);
}
}
}
conn.SendNow("\r\n", 2);
conn.SendNow(body);
}
///\brief A function running in a thread to send all statistics.
///\param empty A null pointer.
void handleStats(void * empty){
if (empty != 0){
return;
}
std::string double_newline = "\n\n";
Socket::Connection StatsSocket = Socket::Connection("/tmp/mist/statistics", true);
while (buffer_running){
Util::sleep(1000); //sleep one second
if ( !StatsSocket.connected()){
StatsSocket = Socket::Connection("/tmp/mist/statistics", true);
}
if (StatsSocket.connected()){
Stream::get()->getReadLock();
StatsSocket.Send(Stream::get()->getStats());
Stream::get()->dropReadLock();
StatsSocket.SendNow(double_newline);
}
}
StatsSocket.close();
}
///\brief Main function for the TS Connector
///\param conn A socket describing the connection the client.
///\param streamName The stream to connect to.
///\return The exit code of the connector.
int tsConnector(Socket::Connection conn, std::string streamName, std::string trackIDs){
std::string ToPack;
TS::Packet PackData;
std::string DTMIData;
int PacketNumber = 0;
long long unsigned int TimeStamp = 0;
int ThisNaluSize;
char VideoCounter = 0;
char AudioCounter = 0;
bool WritePesHeader;
bool IsKeyFrame;
bool FirstKeyFrame = true;
bool FirstIDRInKeyFrame;
MP4::AVCC avccbox;
bool haveAvcc = false;
DTSC::Stream Strm;
bool inited = false;
Socket::Connection ss;
while (conn.connected()){
if ( !inited){
ss = Util::Stream::getStream(streamName);
if ( !ss.connected()){
#if DEBUG >= 1
fprintf(stderr, "Could not connect to server!\n");
#endif
conn.close();
break;
}
if(trackIDs == ""){
// no track ids given? Find the first video and first audio track (if available) and use those!
int videoID = -1;
int audioID = -1;
Strm.waitForMeta(ss);
if (Strm.metadata.isMember("tracks")){
for (JSON::ObjIter trackIt = Strm.metadata["tracks"].ObjBegin(); trackIt != Strm.metadata["tracks"].ObjEnd(); trackIt++){
if (audioID == -1 && trackIt->second["type"].asString() == "audio"){
audioID = trackIt->second["trackid"].asInt();
if( trackIDs != ""){
trackIDs += " " + trackIt->second["trackid"].asString();
}else{
trackIDs = trackIt->second["trackid"].asString();
}
}
if (videoID == -1 && trackIt->second["type"].asString() == "video"){
videoID = trackIt->second["trackid"].asInt();
if( trackIDs != ""){
trackIDs += " " + trackIt->second["trackid"].asString();
}else{
trackIDs = trackIt->second["trackid"].asString();
}
}
} // for iterator
} // if isMember("tracks")
} // if trackIDs == ""
std::string cmd = "t " + trackIDs + "\ns 0\np\n";
ss.SendNow( cmd );
inited = true;
}
if (ss.spool()){
while (Strm.parsePacket(ss.Received())){
std::stringstream TSBuf;
Socket::Buffer ToPack;
//write PAT and PMT TS packets
if (PacketNumber == 0){
PackData.DefaultPAT();
TSBuf.write(PackData.ToString(), 188);
PackData.DefaultPMT();
TSBuf.write(PackData.ToString(), 188);
PacketNumber += 2;
}
int PIDno = 0;
char * ContCounter = 0;
if (Strm.lastType() == DTSC::VIDEO){
if ( !haveAvcc){
avccbox.setPayload(Strm.getTrackById(Strm.getPacket()["trackid"].asInt())["init"].asString());
haveAvcc = true;
}
IsKeyFrame = Strm.getPacket().isMember("keyframe");
if (IsKeyFrame){
TimeStamp = (Strm.getPacket()["time"].asInt() * 27000);
}
ToPack.append(avccbox.asAnnexB());
while (Strm.lastData().size() > 4){
ThisNaluSize = (Strm.lastData()[0] << 24) + (Strm.lastData()[1] << 16) + (Strm.lastData()[2] << 8) + Strm.lastData()[3];
Strm.lastData().replace(0, 4, TS::NalHeader, 4);
if (ThisNaluSize + 4 == Strm.lastData().size()){
ToPack.append(Strm.lastData());
break;
}else{
ToPack.append(Strm.lastData().c_str(), ThisNaluSize + 4);
Strm.lastData().erase(0, ThisNaluSize + 4);
}
}
ToPack.prepend(TS::Packet::getPESVideoLeadIn(0ul, Strm.getPacket()["time"].asInt() * 90));
PIDno = 0x100 - 1 + Strm.getPacket()["trackid"].asInt();
ContCounter = &VideoCounter;
}else if (Strm.lastType() == DTSC::AUDIO){
ToPack.append(TS::GetAudioHeader(Strm.lastData().size(), Strm.getTrackById(Strm.getPacket()["trackid"].asInt())["init"].asString()));
ToPack.append(Strm.lastData());
ToPack.prepend(TS::Packet::getPESAudioLeadIn(ToPack.bytes(1073741824ul), Strm.getPacket()["time"].asInt() * 90));
PIDno = 0x100 - 1 + Strm.getPacket()["trackid"].asInt();
ContCounter = &AudioCounter;
IsKeyFrame = false;
}
//initial packet
PackData.Clear();
PackData.PID(PIDno);
PackData.ContinuityCounter(( *ContCounter)++);
PackData.UnitStart(1);
if (IsKeyFrame){
PackData.RandomAccess(1);
PackData.PCR(TimeStamp);
}
unsigned int toSend = PackData.AddStuffing(ToPack.bytes(184));
std::string gonnaSend = ToPack.remove(toSend);
PackData.FillFree(gonnaSend);
TSBuf.write(PackData.ToString(), 188);
PacketNumber++;
//rest of packets
while (ToPack.size()){
PackData.Clear();
PackData.PID(PIDno);
PackData.ContinuityCounter(( *ContCounter)++);
toSend = PackData.AddStuffing(ToPack.bytes(184));
gonnaSend = ToPack.remove(toSend);
PackData.FillFree(gonnaSend);
TSBuf.write(PackData.ToString(), 188);
PacketNumber++;
}
TSBuf.flush();
if (TSBuf.str().size()){
conn.SendNow(TSBuf.str().c_str(), TSBuf.str().size());
TSBuf.str("");
}
TSBuf.str("");
PacketNumber = 0;
}
}else{
Util::sleep(1000);
conn.spool();
}
}
return 0;
}
/// Main function for Connector_HTTP_Dynamic
int Connector_HTTP_Dynamic(Socket::Connection conn){
std::deque<std::string> FlashBuf;
std::vector<int> Timestamps;
int FlashBufSize = 0;
long long int FlashBufTime = 0;
DTSC::Stream Strm; //Incoming stream buffer.
HTTP::Parser HTTP_R, HTTP_S; //HTTP Receiver en HTTP Sender.
bool ready4data = false; //Set to true when streaming is to begin.
bool pending_manifest = false;
bool receive_marks = false; //when set to true, this stream will ignore keyframes and instead use pause marks
bool inited = false;
Socket::Connection ss( -1);
std::string streamname;
std::string recBuffer = "";
bool wantsVideo = false;
bool wantsAudio = false;
std::string Quality;
int Segment = -1;
long long int ReqFragment = -1;
int temp;
std::string tempStr;
int Flash_RequestPending = 0;
unsigned int lastStats = 0;
conn.setBlocking(false); //do not block on conn.spool() when no data is available
while (conn.connected()){
if (conn.spool() || conn.Received().size()){
//make sure it ends in a \n
if ( *(conn.Received().get().rbegin()) != '\n'){
std::string tmp = conn.Received().get();
conn.Received().get().clear();
if (conn.Received().size()){
conn.Received().get().insert(0, tmp);
}else{
conn.Received().append(tmp);
}
}
if (HTTP_R.Read(conn.Received().get())){
#if DEBUG >= 4
std::cout << "Received request: " << HTTP_R.getUrl() << std::endl;
#endif
conn.setHost(HTTP_R.GetHeader("X-Origin"));
if (HTTP_R.url.find("Manifest") == std::string::npos){
streamname = HTTP_R.url.substr(8, HTTP_R.url.find("/", 8) - 12);
if ( !ss){
ss = Util::Stream::getStream(streamname);
if ( !ss.connected()){
#if DEBUG >= 1
fprintf(stderr, "Could not connect to server!\n");
#endif
ss.close();
HTTP_S.Clean();
HTTP_S.SetBody("No such stream " + streamname + " is available on the system. Please try again.\n");
conn.SendNow(HTTP_S.BuildResponse("404", "Not found"));
ready4data = false;
continue;
}
ss.setBlocking(false);
inited = true;
}
Quality = HTTP_R.url.substr(HTTP_R.url.find("/Q(", 8) + 3);
Quality = Quality.substr(0, Quality.find(")"));
tempStr = HTTP_R.url.substr(HTTP_R.url.find(")/") + 2);
wantsAudio = false;
wantsVideo = false;
if (tempStr[0] == 'A'){
wantsAudio = true;
}
if (tempStr[0] == 'V'){
wantsVideo = true;
}
tempStr = tempStr.substr(tempStr.find("(") + 1);
ReqFragment = atoll(tempStr.substr(0, tempStr.find(")")).c_str());
#if DEBUG >= 4
printf("Quality: %s, Frag %d\n", Quality.c_str(), (ReqFragment / 10000));
#endif
std::stringstream sstream;
sstream << "s " << (ReqFragment / 10000) << "\no \n";
ss.SendNow(sstream.str().c_str());
Flash_RequestPending++;
}else{
streamname = HTTP_R.url.substr(8, HTTP_R.url.find("/", 8) - 12);
if ( !Strm.metadata.isNull()){
HTTP_S.Clean();
HTTP_S.SetHeader("Content-Type", "text/xml");
HTTP_S.SetHeader("Cache-Control", "no-cache");
if (Strm.metadata.isMember("length")){
receive_marks = true;
}
std::string manifest = BuildManifest(streamname, Strm.metadata);
HTTP_S.SetBody(manifest);
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
#if DEBUG >= 3
printf("Sent manifest\n");
#endif
pending_manifest = false;
}else{
pending_manifest = true;
}
}
ready4data = true;
HTTP_R.Clean(); //clean for any possible next requests
}
}else{
if (Flash_RequestPending){
usleep(1000); //sleep 1ms
}else{
usleep(10000); //sleep 10ms
}
}
if (ready4data){
if ( !inited){
//we are ready, connect the socket!
ss = Util::Stream::getStream(streamname);
if ( !ss.connected()){
#if DEBUG >= 1
fprintf(stderr, "Could not connect to server!\n");
#endif
ss.close();
HTTP_S.Clean();
HTTP_S.SetBody("No such stream " + streamname + " is available on the system. Please try again.\n");
conn.SendNow(HTTP_S.BuildResponse("404", "Not found"));
ready4data = false;
continue;
}
ss.setBlocking(false);
#if DEBUG >= 3
fprintf(stderr, "Everything connected, starting to send video data...\n");
#endif
inited = true;
}
unsigned int now = Util::epoch();
if (now != lastStats){
lastStats = now;
ss.SendNow(conn.getStats("HTTP_Smooth").c_str());
}
if (ss.spool()){
while (Strm.parsePacket(ss.Received())){
if (Strm.getPacket(0).isMember("time")){
if ( !Strm.metadata.isMember("firsttime")){
Strm.metadata["firsttime"] = Strm.getPacket(0)["time"];
}else{
if ( !Strm.metadata.isMember("length") || Strm.metadata["length"].asInt() == 0){
Strm.getPacket(0)["time"] = Strm.getPacket(0)["time"].asInt() - Strm.metadata["firsttime"].asInt();
}
}
Strm.metadata["lasttime"] = Strm.getPacket(0)["time"];
}
if (pending_manifest){
HTTP_S.Clean();
HTTP_S.SetHeader("Content-Type", "text/xml");
HTTP_S.SetHeader("Cache-Control", "no-cache");
if (Strm.metadata.isMember("length")){
receive_marks = true;
}
std::string manifest = BuildManifest(streamname, Strm.metadata);
HTTP_S.SetBody(manifest);
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
#if DEBUG >= 3
printf("Sent manifest\n");
#endif
pending_manifest = false;
}
if ( !receive_marks && Strm.metadata.isMember("length")){
receive_marks = true;
}
if (Strm.lastType() == DTSC::PAUSEMARK){
Timestamps.push_back(Strm.getPacket(0)["time"].asInt());
}
if ((Strm.getPacket(0).isMember("keyframe") && !receive_marks) || Strm.lastType() == DTSC::PAUSEMARK){
#if DEBUG >= 4
fprintf(stderr, "Received a %s fragment of %i bytes.\n", Strm.getPacket(0)["datatype"].asString().c_str(), FlashBufSize);
#endif
if (Flash_RequestPending > 0 && FlashBufSize){
#if DEBUG >= 3
fprintf(stderr, "Sending a fragment...");
#endif
//static std::string btstrp;
//btstrp = GenerateBootstrap(streamname, Strm.metadata, ReqFragment, FlashBufTime, Strm.getPacket(0)["time"]);
HTTP_S.Clean();
HTTP_S.SetHeader("Content-Type", "video/mp4");
HTTP_S.SetBody("");
int myDuration;
MP4::MFHD mfhd_box;
for (int i = 0; i < Strm.metadata["keytime"].size(); i++){
if (Strm.metadata["keytime"][i].asInt() >= (ReqFragment / 10000)){
mfhd_box.setSequenceNumber(i + 1);
if (i != Strm.metadata["keytime"].size()){
myDuration = Strm.metadata["keytime"][i + 1].asInt() - Strm.metadata["keytime"][i].asInt();
}else{
myDuration = Strm.metadata["lastms"].asInt() - Strm.metadata["keytime"][i].asInt();
}
myDuration = myDuration * 10000;
break;
}
}
MP4::TFHD tfhd_box;
tfhd_box.setFlags(MP4::tfhdSampleFlag);
tfhd_box.setTrackID(1);
tfhd_box.setDefaultSampleFlags(0x000000C0 | MP4::noIPicture | MP4::noDisposable | MP4::noKeySample);
MP4::TRUN trun_box;
//maybe reinsert dataOffset
trun_box.setFlags(MP4::trundataOffset | MP4::trunfirstSampleFlags | MP4::trunsampleDuration | MP4::trunsampleSize);
trun_box.setDataOffset(42);
trun_box.setFirstSampleFlags(0x00000040 | MP4::isIPicture | MP4::noDisposable | MP4::isKeySample);
for (int i = 0; i < FlashBuf.size(); i++){
MP4::trunSampleInformation trunSample;
trunSample.sampleSize = FlashBuf[i].size();
//trunSample.sampleDuration = (Timestamps[i+1]-Timestamps[i]) * 10000;
trunSample.sampleDuration = (((double)myDuration / FlashBuf.size()) * i) - (((double)myDuration / FlashBuf.size()) * (i - 1));
trun_box.setSampleInformation(trunSample, i);
}
MP4::SDTP sdtp_box;
sdtp_box.setVersion(0);
sdtp_box.setValue(0x24, 4);
for (int i = 1; i < FlashBuf.size(); i++){
sdtp_box.setValue(0x14, 4 + i);
}
MP4::TRAF traf_box;
traf_box.setContent(tfhd_box, 0);
traf_box.setContent(trun_box, 1);
traf_box.setContent(sdtp_box, 2);
MP4::MOOF moof_box;
moof_box.setContent(mfhd_box, 0);
moof_box.setContent(traf_box, 1);
//setting tha offsets!
trun_box.setDataOffset(moof_box.boxedSize() + 8);
traf_box.setContent(trun_box, 1);
moof_box.setContent(traf_box, 1);
//std::cerr << "\t[encoded] = " << ((MP4::TRUN&)(((MP4::TRAF&)(moof_box.getContent(1))).getContent(1))).getDataOffset() << std::endl;
HTTP_S.SetHeader("Content-Length", FlashBufSize + 8 + moof_box.boxedSize()); //32+33+btstrp.size());
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
conn.SendNow(moof_box.asBox(), moof_box.boxedSize());
unsigned long size = htonl(FlashBufSize+8);
conn.SendNow((char*) &size, 4);
conn.SendNow("mdat", 4);
while (FlashBuf.size() > 0){
conn.SendNow(FlashBuf.front());
FlashBuf.pop_front();
}
Flash_RequestPending--;
#if DEBUG >= 3
fprintf(stderr, "Done\n");
#endif
}
FlashBuf.clear();
FlashBufSize = 0;
}
if ((wantsAudio && Strm.lastType() == DTSC::AUDIO) || (wantsVideo && Strm.lastType() == DTSC::VIDEO)){
FlashBuf.push_back(Strm.lastData());
FlashBufSize += Strm.lastData().size();
Timestamps.push_back(Strm.getPacket(0)["time"].asInt());
}
}
if (pending_manifest && !Strm.metadata.isNull()){
HTTP_S.Clean();
HTTP_S.SetHeader("Content-Type", "text/xml");
HTTP_S.SetHeader("Cache-Control", "no-cache");
if (Strm.metadata.isMember("length")){
receive_marks = true;
}
std::string manifest = BuildManifest(streamname, Strm.metadata);
HTTP_S.SetBody(manifest);
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
#if DEBUG >= 3
printf("Sent manifest\n");
#endif
pending_manifest = false;
}
}
if ( !ss.connected()){
break;
}
}
}
conn.close();
ss.SendNow(conn.getStats("HTTP_Smooth").c_str());
ss.close();
return 0;
} //Connector_HTTP_Smooth main function
///\brief Main function for the HTTP Dynamic Connector
///\param conn A socket describing the connection the client.
///\return The exit code of the connector.
int dynamicConnector(Socket::Connection conn){
std::deque<std::string> FlashBuf;
int FlashBufSize = 0;
long long int FlashBufTime = 0;
FLV::Tag tmp; //temporary tag
DTSC::Stream Strm; //Incoming stream buffer.
HTTP::Parser HTTP_R, HTTP_S; //HTTP Receiver en HTTP Sender.
Socket::Connection ss( -1);
std::string streamname;
std::string recBuffer = "";
std::string Quality;
int Segment = -1;
int ReqFragment = -1;
unsigned int lastStats = 0;
conn.setBlocking(false); //do not block on conn.spool() when no data is available
while (conn.connected()){
if (conn.spool() || conn.Received().size()){
//make sure it ends in a \n
if ( *(conn.Received().get().rbegin()) != '\n'){
std::string tmp = conn.Received().get();
conn.Received().get().clear();
if (conn.Received().size()){
conn.Received().get().insert(0, tmp);
}else{
conn.Received().append(tmp);
}
}
if (HTTP_R.Read(conn.Received().get())){
#if DEBUG >= 5
std::cout << "Received request: " << HTTP_R.getUrl() << std::endl;
#endif
conn.setHost(HTTP_R.GetHeader("X-Origin"));
streamname = HTTP_R.GetHeader("X-Stream");
if ( !ss){
ss = Util::Stream::getStream(streamname);
if ( !ss.connected()){
HTTP_S.Clean();
HTTP_S.SetBody("No such stream is available on the system. Please try again.\n");
conn.SendNow(HTTP_S.BuildResponse("404", "Not found"));
continue;
}
ss.setBlocking(false);
//make sure metadata is received
while ( !Strm.metadata && ss.connected()){
if (ss.spool()){
while (Strm.parsePacket(ss.Received())){
//do nothing
}
}
}
}
if (HTTP_R.url.find(".abst") != std::string::npos){
HTTP_S.Clean();
HTTP_S.SetBody(dynamicBootstrap(streamname, Strm.metadata));
HTTP_S.SetHeader("Content-Type", "binary/octet");
HTTP_S.SetHeader("Cache-Control", "no-cache");
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
HTTP_R.Clean(); //clean for any possible next requests
continue;
}
if (HTTP_R.url.find("f4m") == std::string::npos){
Quality = HTTP_R.url.substr(HTTP_R.url.find("/", 10) + 1);
Quality = Quality.substr(0, Quality.find("Seg"));
int temp;
temp = HTTP_R.url.find("Seg") + 3;
Segment = atoi(HTTP_R.url.substr(temp, HTTP_R.url.find("-", temp) - temp).c_str());
temp = HTTP_R.url.find("Frag") + 4;
ReqFragment = atoi(HTTP_R.url.substr(temp).c_str());
#if DEBUG >= 5
printf("Quality: %s, Seg %d Frag %d\n", Quality.c_str(), Segment, ReqFragment);
#endif
if (Strm.metadata.isMember("live")){
int seekable = Strm.canSeekFrame(ReqFragment);
if (seekable == 0){
// iff the fragment in question is available, check if the next is available too
seekable = Strm.canSeekFrame(ReqFragment + 1);
}
if (seekable < 0){
HTTP_S.Clean();
HTTP_S.SetBody("The requested fragment is no longer kept in memory on the server and cannot be served.\n");
conn.SendNow(HTTP_S.BuildResponse("412", "Fragment out of range"));
HTTP_R.Clean(); //clean for any possible next requests
std::cout << "Fragment @ F" << ReqFragment << " too old (F" << Strm.metadata["keynum"][0u].asInt() << " - " << Strm.metadata["keynum"][Strm.metadata["keynum"].size() - 1].asInt() << ")" << std::endl;
continue;
}
if (seekable > 0){
HTTP_S.Clean();
HTTP_S.SetBody("Proxy, re-request this in a second or two.\n");
conn.SendNow(HTTP_S.BuildResponse("208", "Ask again later"));
HTTP_R.Clean(); //clean for any possible next requests
std::cout << "Fragment @ F" << ReqFragment << " not available yet (F" << Strm.metadata["keynum"][0u].asInt() << " - " << Strm.metadata["keynum"][Strm.metadata["keynum"].size() - 1].asInt() << ")" << std::endl;
continue;
}
}
std::stringstream sstream;
sstream << "f " << ReqFragment << "\no \n";
ss.SendNow(sstream.str().c_str());
}else{
HTTP_S.Clean();
HTTP_S.SetHeader("Content-Type", "text/xml");
HTTP_S.SetHeader("Cache-Control", "no-cache");
std::string manifest = dynamicIndex(streamname, Strm.metadata);
HTTP_S.SetBody(manifest);
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
}
HTTP_R.Clean(); //clean for any possible next requests
}
}else{
Util::sleep(1);
}
if (ss.connected()){
unsigned int now = Util::epoch();
if (now != lastStats){
lastStats = now;
ss.SendNow(conn.getStats("HTTP_Dynamic").c_str());
}
if (ss.spool()){
while (Strm.parsePacket(ss.Received())){
if (Strm.lastType() == DTSC::PAUSEMARK){
if (FlashBufSize){
HTTP_S.Clean();
HTTP_S.SetHeader("Content-Type", "video/mp4");
HTTP_S.SetBody("");
std::string new_strap = dynamicBootstrap(streamname, Strm.metadata, ReqFragment);
HTTP_S.SetHeader("Content-Length", FlashBufSize + 8 + new_strap.size()); //32+33+btstrp.size());
conn.SendNow(HTTP_S.BuildResponse("200", "OK"));
conn.SendNow(new_strap);
unsigned long size = htonl(FlashBufSize+8);
conn.SendNow((char*) &size, 4);
conn.SendNow("mdat", 4);
while (FlashBuf.size() > 0){
conn.SendNow(FlashBuf.front());
FlashBuf.pop_front();
}
}
FlashBuf.clear();
FlashBufSize = 0;
}
if (Strm.lastType() == DTSC::VIDEO || Strm.lastType() == DTSC::AUDIO){
if (FlashBufSize == 0){
//fill buffer with init data, if needed.
if (Strm.metadata.isMember("audio") && Strm.metadata["audio"].isMember("init")){
tmp.DTSCAudioInit(Strm);
tmp.tagTime(Strm.getPacket(0)["time"].asInt());
FlashBuf.push_back(std::string(tmp.data, tmp.len));
FlashBufSize += tmp.len;
}
if (Strm.metadata.isMember("video") && Strm.metadata["video"].isMember("init")){
tmp.DTSCVideoInit(Strm);
tmp.tagTime(Strm.getPacket(0)["time"].asInt());
FlashBuf.push_back(std::string(tmp.data, tmp.len));
FlashBufSize += tmp.len;
}
FlashBufTime = Strm.getPacket(0)["time"].asInt();
}
tmp.DTSCLoader(Strm);
FlashBuf.push_back(std::string(tmp.data, tmp.len));
FlashBufSize += tmp.len;
}
}
}
if ( !ss.connected()){
break;
}
}
}
conn.close();
ss.SendNow(conn.getStats("HTTP_Dynamic").c_str());
ss.close();
return 0;
} //Connector_HTTP_Dynamic main function
///\brief Main function for the TS Connector
///\param conn A socket describing the connection the client.
///\param streamName The stream to connect to.
///\return The exit code of the connector.
int tsConnector(Socket::Connection conn, std::string streamName){
std::string ToPack;
TS::Packet PackData;
std::string DTMIData;
int PacketNumber = 0;
long long unsigned int TimeStamp = 0;
int ThisNaluSize;
char VideoCounter = 0;
char AudioCounter = 0;
bool WritePesHeader;
bool IsKeyFrame;
bool FirstKeyFrame = true;
bool FirstIDRInKeyFrame;
MP4::AVCC avccbox;
bool haveAvcc = false;
DTSC::Stream Strm;
bool inited = false;
Socket::Connection ss;
while (conn.connected()){
if ( !inited){
ss = Util::Stream::getStream(streamName);
if ( !ss.connected()){
#if DEBUG >= 1
fprintf(stderr, "Could not connect to server!\n");
#endif
conn.close();
break;
}
ss.SendNow("p\n");
inited = true;
}
if (ss.spool()){
while (Strm.parsePacket(ss.Received())){
if ( !haveAvcc){
avccbox.setPayload(Strm.metadata["video"]["init"].asString());
haveAvcc = true;
}
std::stringstream TSBuf;
Socket::Buffer ToPack;
//write PAT and PMT TS packets
if (PacketNumber == 0){
PackData.DefaultPAT();
TSBuf.write(PackData.ToString(), 188);
PackData.DefaultPMT();
TSBuf.write(PackData.ToString(), 188);
PacketNumber += 2;
}
int PIDno = 0;
char * ContCounter = 0;
if (Strm.lastType() == DTSC::VIDEO){
IsKeyFrame = Strm.getPacket(0).isMember("keyframe");
if (IsKeyFrame){
TimeStamp = (Strm.getPacket(0)["time"].asInt() * 27000);
}
ToPack.append(avccbox.asAnnexB());
while (Strm.lastData().size()){
ThisNaluSize = (Strm.lastData()[0] << 24) + (Strm.lastData()[1] << 16) + (Strm.lastData()[2] << 8) + Strm.lastData()[3];
Strm.lastData().replace(0, 4, TS::NalHeader, 4);
if (ThisNaluSize + 4 == Strm.lastData().size()){
ToPack.append(Strm.lastData());
break;
}else{
ToPack.append(Strm.lastData().c_str(), ThisNaluSize + 4);
Strm.lastData().erase(0, ThisNaluSize + 4);
}
}
ToPack.prepend(TS::Packet::getPESVideoLeadIn(0ul, Strm.getPacket(0)["time"].asInt() * 90));
PIDno = 0x100;
ContCounter = &VideoCounter;
}else if (Strm.lastType() == DTSC::AUDIO){
ToPack.append(TS::GetAudioHeader(Strm.lastData().size(), Strm.metadata["audio"]["init"].asString()));
ToPack.append(Strm.lastData());
ToPack.prepend(TS::Packet::getPESAudioLeadIn(ToPack.bytes(1073741824ul), Strm.getPacket(0)["time"].asInt() * 90));
PIDno = 0x101;
ContCounter = &AudioCounter;
}
//initial packet
PackData.Clear();
PackData.PID(PIDno);
PackData.ContinuityCounter(( *ContCounter)++);
PackData.UnitStart(1);
if (IsKeyFrame){
PackData.RandomAccess(1);
PackData.PCR(TimeStamp);
}
unsigned int toSend = PackData.AddStuffing(ToPack.bytes(184));
std::string gonnaSend = ToPack.remove(toSend);
PackData.FillFree(gonnaSend);
TSBuf.write(PackData.ToString(), 188);
PacketNumber++;
//rest of packets
while (ToPack.size()){
PackData.Clear();
PackData.PID(PIDno);
PackData.ContinuityCounter(( *ContCounter)++);
toSend = PackData.AddStuffing(ToPack.bytes(184));
gonnaSend = ToPack.remove(toSend);
PackData.FillFree(gonnaSend);
TSBuf.write(PackData.ToString(), 188);
PacketNumber++;
}
TSBuf.flush();
if (TSBuf.str().size()){
conn.SendNow(TSBuf.str().c_str(), TSBuf.str().size());
TSBuf.str("");
}
TSBuf.str("");
PacketNumber = 0;
}
}
}
return 0;
}
/// After receiving a header with this object, this function call will:
/// - Forward the headers to the 'to' Socket::Connection.
/// - Retrieve all the body from the 'from' Socket::Connection.
/// - Forward those contents as-is to the 'to' Socket::Connection.
/// It blocks until completed or either of the connections reaches an error state.
void HTTP::Parser::Proxy(Socket::Connection & from, Socket::Connection & to) {
SendResponse(url, method, to);
if (getChunks) {
unsigned int proxyingChunk = 0;
while (to.connected() && from.connected()) {
if ((from.Received().size() && (from.Received().size() > 1 || *(from.Received().get().rbegin()) == '\n')) || from.spool()) {
if (proxyingChunk) {
while (proxyingChunk && from.Received().size()) {
unsigned int toappend = from.Received().get().size();
if (toappend > proxyingChunk) {
toappend = proxyingChunk;
to.SendNow(from.Received().get().c_str(), toappend);
from.Received().get().erase(0, toappend);
} else {
to.SendNow(from.Received().get());
from.Received().get().clear();
}
proxyingChunk -= toappend;
}
} else {
//Make sure the received data ends in a newline (\n).
if (*(from.Received().get().rbegin()) != '\n') {
if (from.Received().size() > 1) {
//make a copy of the first part
std::string tmp = from.Received().get();
//clear the first part, wiping it from the partlist
from.Received().get().clear();
from.Received().size();
//take the now first (was second) part, insert the stored part in front of it
from.Received().get().insert(0, tmp);
} else {
Util::sleep(100);
}
if (*(from.Received().get().rbegin()) != '\n') {
continue;
}
}
//forward the size and any empty lines
to.SendNow(from.Received().get());
std::string tmpA = from.Received().get().substr(0, from.Received().get().size() - 1);
while (tmpA.find('\r') != std::string::npos) {
tmpA.erase(tmpA.find('\r'));
}
unsigned int chunkLen = 0;
if (!tmpA.empty()) {
for (unsigned int i = 0; i < tmpA.size(); ++i) {
chunkLen = (chunkLen << 4) | unhex(tmpA[i]);
}
if (chunkLen == 0) {
getChunks = false;
to.SendNow("\r\n", 2);
return;
}
proxyingChunk = chunkLen;
}
from.Received().get().clear();
}
} else {
Util::sleep(100);
}
}
} else {
unsigned int bodyLen = length;
while (bodyLen > 0 && to.connected() && from.connected()) {
if (from.Received().size() || from.spool()) {
if (from.Received().get().size() <= bodyLen) {
to.SendNow(from.Received().get());
bodyLen -= from.Received().get().size();
from.Received().get().clear();
} else {
to.SendNow(from.Received().get().c_str(), bodyLen);
from.Received().get().erase(0, bodyLen);
bodyLen = 0;
}
} else {
Util::sleep(100);
}
}
}
}
///\brief Parses a single AMF command message, and sends a direct response through sendCommand().
///\param amfData The received request.
///\param messageType The type of message.
///\param streamId The ID of the AMF stream.
void parseAMFCommand(AMF::Object & amfData, int messageType, int streamId){
#if DEBUG >= 5
fprintf(stderr, "Received command: %s\n", amfData.Print().c_str());
#endif
#if DEBUG >= 8
fprintf(stderr, "AMF0 command: %s\n", amfData.getContentP(0)->StrValue().c_str());
#endif
if (amfData.getContentP(0)->StrValue() == "connect"){
double objencoding = 0;
if (amfData.getContentP(2)->getContentP("objectEncoding")){
objencoding = amfData.getContentP(2)->getContentP("objectEncoding")->NumValue();
}
#if DEBUG >= 6
int tmpint;
if (amfData.getContentP(2)->getContentP("videoCodecs")){
tmpint = (int)amfData.getContentP(2)->getContentP("videoCodecs")->NumValue();
if (tmpint & 0x04){
fprintf(stderr, "Sorensen video support detected\n");
}
if (tmpint & 0x80){
fprintf(stderr, "H264 video support detected\n");
}
}
if (amfData.getContentP(2)->getContentP("audioCodecs")){
tmpint = (int)amfData.getContentP(2)->getContentP("audioCodecs")->NumValue();
if (tmpint & 0x04){
fprintf(stderr, "MP3 audio support detected\n");
}
if (tmpint & 0x400){
fprintf(stderr, "AAC audio support detected\n");
}
}
#endif
app_name = amfData.getContentP(2)->getContentP("tcUrl")->StrValue();
app_name = app_name.substr(app_name.find('/', 7) + 1);
RTMPStream::chunk_snd_max = 4096;
Socket.Send(RTMPStream::SendCTL(1, RTMPStream::chunk_snd_max)); //send chunk size max (msg 1)
Socket.Send(RTMPStream::SendCTL(5, RTMPStream::snd_window_size)); //send window acknowledgement size (msg 5)
Socket.Send(RTMPStream::SendCTL(6, RTMPStream::rec_window_size)); //send rec window acknowledgement size (msg 6)
Socket.Send(RTMPStream::SendUSR(0, 1)); //send UCM StreamBegin (0), stream 1
//send a _result reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "_result")); //result success
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("")); //server properties
amfReply.getContentP(2)->addContent(AMF::Object("fmsVer", "FMS/3,5,5,2004"));
amfReply.getContentP(2)->addContent(AMF::Object("capabilities", (double)31));
amfReply.getContentP(2)->addContent(AMF::Object("mode", (double)1));
amfReply.addContent(AMF::Object("")); //info
amfReply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfReply.getContentP(3)->addContent(AMF::Object("code", "NetConnection.Connect.Success"));
amfReply.getContentP(3)->addContent(AMF::Object("description", "Connection succeeded."));
amfReply.getContentP(3)->addContent(AMF::Object("clientid", 1337));
amfReply.getContentP(3)->addContent(AMF::Object("objectEncoding", objencoding));
//amfReply.getContentP(3)->addContent(AMF::Object("data", AMF::AMF0_ECMA_ARRAY));
//amfReply.getContentP(3)->getContentP(4)->addContent(AMF::Object("version", "3,5,4,1004"));
sendCommand(amfReply, messageType, streamId);
//send onBWDone packet - no clue what it is, but real server sends it...
//amfReply = AMF::Object("container", AMF::AMF0_DDV_CONTAINER);
//amfReply.addContent(AMF::Object("", "onBWDone"));//result
//amfReply.addContent(amfData.getContent(1));//same transaction ID
//amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL));//null
//sendCommand(amfReply, messageType, streamId);
return;
} //connect
if (amfData.getContentP(0)->StrValue() == "createStream"){
//send a _result reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "_result")); //result success
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("", (double)1)); //stream ID - we use 1
sendCommand(amfReply, messageType, streamId);
Socket.Send(RTMPStream::SendUSR(0, 1)); //send UCM StreamBegin (0), stream 1
return;
} //createStream
if ((amfData.getContentP(0)->StrValue() == "closeStream") || (amfData.getContentP(0)->StrValue() == "deleteStream")){
if (ss.connected()){
ss.close();
}
return;
}
if ((amfData.getContentP(0)->StrValue() == "FCUnpublish") || (amfData.getContentP(0)->StrValue() == "releaseStream")){
// ignored
return;
}
if ((amfData.getContentP(0)->StrValue() == "FCPublish")){
//send a FCPublic reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "onFCPublish")); //status reply
amfReply.addContent(AMF::Object("", 0, AMF::AMF0_NUMBER)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("")); //info
amfReply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Publish.Start"));
amfReply.getContentP(3)->addContent(AMF::Object("description", "Please followup with publish command..."));
sendCommand(amfReply, messageType, streamId);
return;
} //FCPublish
if (amfData.getContentP(0)->StrValue() == "releaseStream"){
//send a _result reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "_result")); //result success
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("", AMF::AMF0_UNDEFINED)); //stream ID?
sendCommand(amfReply, messageType, streamId);
return;
}//releaseStream
if ((amfData.getContentP(0)->StrValue() == "getStreamLength") || (amfData.getContentP(0)->StrValue() == "getMovLen")){
//send a _result reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "_result")); //result success
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("", (double)0)); //zero length
sendCommand(amfReply, messageType, streamId);
return;
} //getStreamLength
if ((amfData.getContentP(0)->StrValue() == "publish")){
if (amfData.getContentP(3)){
streamName = amfData.getContentP(3)->StrValue();
/// \todo implement push for MistPlayer or restrict and change to getLive
ss = Util::Stream::getStream(streamName);
if ( !ss.connected()){
#if DEBUG >= 1
fprintf(stderr, "Could not connect to server!\n");
#endif
Socket.close(); //disconnect user
return;
}
DTSC::Stream Strm;
Strm.waitForMeta(ss);
ss.Send("P ");
ss.Send(Socket.getHost().c_str());
ss.Send(" ");
ss.Send(app_name);
ss.SendNow("\n");
streamReset = true;
noStats = true;
}
//send a _result reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "_result")); //result success
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("", 1, AMF::AMF0_BOOL)); //publish success?
sendCommand(amfReply, messageType, streamId);
Socket.Send(RTMPStream::SendUSR(0, 1)); //send UCM StreamBegin (0), stream 1
//send a status reply
amfReply = AMF::Object("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "onStatus")); //status reply
amfReply.addContent(AMF::Object("", 0, AMF::AMF0_NUMBER)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("")); //info
amfReply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfReply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Publish.Start"));
amfReply.getContentP(3)->addContent(AMF::Object("description", "Stream is now published!"));
amfReply.getContentP(3)->addContent(AMF::Object("clientid", (double)1337));
sendCommand(amfReply, messageType, streamId);
return;
} //getStreamLength
if (amfData.getContentP(0)->StrValue() == "checkBandwidth"){
//send a _result reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "_result")); //result success
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
sendCommand(amfReply, messageType, streamId);
return;
} //checkBandwidth
if ((amfData.getContentP(0)->StrValue() == "play") || (amfData.getContentP(0)->StrValue() == "play2")){
//set reply number and stream name, actual reply is sent up in the ss.spool() handler
playTransaction = amfData.getContentP(1)->NumValue();
playMessageType = messageType;
playStreamId = streamId;
streamName = amfData.getContentP(3)->StrValue();
Connector_RTMP::ready4data = true; //start sending video data!
return;
} //play
if ((amfData.getContentP(0)->StrValue() == "seek")){
//set reply number and stream name, actual reply is sent up in the ss.spool() handler
playTransaction = amfData.getContentP(1)->NumValue();
playMessageType = messageType;
playStreamId = streamId;
streamInited = false;
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "onStatus")); //status reply
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("")); //info
amfReply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfReply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Seek.Notify"));
amfReply.getContentP(3)->addContent(AMF::Object("description", "Seeking to the specified time"));
amfReply.getContentP(3)->addContent(AMF::Object("details", "DDV"));
amfReply.getContentP(3)->addContent(AMF::Object("clientid", (double)1337));
sendCommand(amfReply, playMessageType, playStreamId);
ss.Send("s ");
ss.Send(JSON::Value((long long int)amfData.getContentP(3)->NumValue()).asString().c_str());
ss.SendNow("\n");
return;
} //seek
if ((amfData.getContentP(0)->StrValue() == "pauseRaw") || (amfData.getContentP(0)->StrValue() == "pause")){
if (amfData.getContentP(3)->NumValue()){
ss.Send("q\n"); //quit playing
//send a status reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "onStatus")); //status reply
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("")); //info
amfReply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfReply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Pause.Notify"));
amfReply.getContentP(3)->addContent(AMF::Object("description", "Pausing playback"));
amfReply.getContentP(3)->addContent(AMF::Object("details", "DDV"));
amfReply.getContentP(3)->addContent(AMF::Object("clientid", (double)1337));
sendCommand(amfReply, playMessageType, playStreamId);
}else{
ss.SendNow("p\n"); //start playing
//send a status reply
AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
amfReply.addContent(AMF::Object("", "onStatus")); //status reply
amfReply.addContent(amfData.getContent(1)); //same transaction ID
amfReply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfReply.addContent(AMF::Object("")); //info
amfReply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfReply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Unpause.Notify"));
amfReply.getContentP(3)->addContent(AMF::Object("description", "Resuming playback"));
amfReply.getContentP(3)->addContent(AMF::Object("details", "DDV"));
amfReply.getContentP(3)->addContent(AMF::Object("clientid", (double)1337));
sendCommand(amfReply, playMessageType, playStreamId);
}
return;
} //seek
#if DEBUG >= 2
fprintf(stderr, "AMF0 command not processed!\n%s\n", amfData.Print().c_str());
#endif
} //parseAMFCommand
///\brief Main function for the RTMP Connector
///\param conn A socket describing the connection the client.
///\return The exit code of the connector.
int rtmpConnector(Socket::Connection conn){
Socket = conn;
Socket.setBlocking(false);
FLV::Tag tag, init_tag;
DTSC::Stream Strm;
while ( !Socket.Received().available(1537) && Socket.connected()){
Socket.spool();
Util::sleep(5);
}
RTMPStream::handshake_in = Socket.Received().remove(1537);
RTMPStream::rec_cnt += 1537;
if (RTMPStream::doHandshake()){
Socket.SendNow(RTMPStream::handshake_out);
while ( !Socket.Received().available(1536) && Socket.connected()){
Socket.spool();
Util::sleep(5);
}
Socket.Received().remove(1536);
RTMPStream::rec_cnt += 1536;
#if DEBUG >= 5
fprintf(stderr, "Handshake succcess!\n");
#endif
}else{
#if DEBUG >= 5
fprintf(stderr, "Handshake fail!\n");
#endif
return 0;
}
unsigned int lastStats = 0;
bool firsttime = true;
while (Socket.connected()){
if (Socket.spool() || firsttime){
parseChunk(Socket.Received());
firsttime = false;
}else{
Util::sleep(1); //sleep 1ms to prevent high CPU usage
}
if (ready4data){
if ( !inited){
//we are ready, connect the socket!
ss = Util::Stream::getStream(streamName);
if ( !ss.connected()){
#if DEBUG >= 1
fprintf(stderr, "Could not connect to server!\n");
#endif
Socket.close(); //disconnect user
break;
}
ss.setBlocking(false);
Strm.waitForMeta(ss);
//find first audio and video tracks
for (JSON::ObjIter objIt = Strm.metadata["tracks"].ObjBegin(); objIt != Strm.metadata["tracks"].ObjEnd(); objIt++){
if (videoID == -1 && objIt->second["type"].asStringRef() == "video"){
videoID = objIt->second["trackid"].asInt();
}
if (audioID == -1 && objIt->second["type"].asStringRef() == "audio"){
audioID = objIt->second["trackid"].asInt();
}
}
//select the tracks and play
std::stringstream cmd;
cmd << "t";
if (videoID != -1){
cmd << " " << videoID;
}
if (audioID != -1){
cmd << " " << audioID;
}
cmd << "\np\n";
ss.SendNow(cmd.str().c_str());
inited = true;
}
if (inited && !noStats){
long long int now = Util::epoch();
if (now != lastStats){
lastStats = now;
ss.SendNow(Socket.getStats("RTMP"));
}
}
if (ss.spool()){
while (Strm.parsePacket(ss.Received())){
if (playTransaction != -1){
//send a status reply
AMF::Object amfreply("container", AMF::AMF0_DDV_CONTAINER);
amfreply.addContent(AMF::Object("", "onStatus")); //status reply
amfreply.addContent(AMF::Object("", (double)playTransaction)); //same transaction ID
amfreply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfreply.addContent(AMF::Object("")); //info
amfreply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfreply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Play.Reset"));
amfreply.getContentP(3)->addContent(AMF::Object("description", "Playing and resetting..."));
amfreply.getContentP(3)->addContent(AMF::Object("details", "DDV"));
amfreply.getContentP(3)->addContent(AMF::Object("clientid", (double)1337));
sendCommand(amfreply, playMessageType, playStreamId);
//send streamisrecorded if stream, well, is recorded.
if (Strm.metadata.isMember("length") && Strm.metadata["length"].asInt() > 0){
Socket.Send(RTMPStream::SendUSR(4, 1)); //send UCM StreamIsRecorded (4), stream 1
}
//send streambegin
Socket.Send(RTMPStream::SendUSR(0, 1)); //send UCM StreamBegin (0), stream 1
//and more reply
amfreply = AMF::Object("container", AMF::AMF0_DDV_CONTAINER);
amfreply.addContent(AMF::Object("", "onStatus")); //status reply
amfreply.addContent(AMF::Object("", (double)playTransaction)); //same transaction ID
amfreply.addContent(AMF::Object("", (double)0, AMF::AMF0_NULL)); //null - command info
amfreply.addContent(AMF::Object("")); //info
amfreply.getContentP(3)->addContent(AMF::Object("level", "status"));
amfreply.getContentP(3)->addContent(AMF::Object("code", "NetStream.Play.Start"));
amfreply.getContentP(3)->addContent(AMF::Object("description", "Playing!"));
amfreply.getContentP(3)->addContent(AMF::Object("details", "DDV"));
amfreply.getContentP(3)->addContent(AMF::Object("clientid", (double)1337));
sendCommand(amfreply, playMessageType, playStreamId);
RTMPStream::chunk_snd_max = 102400; //100KiB
Socket.Send(RTMPStream::SendCTL(1, RTMPStream::chunk_snd_max)); //send chunk size max (msg 1)
//send dunno?
Socket.Send(RTMPStream::SendUSR(32, 1)); //send UCM no clue?, stream 1
playTransaction = -1;
}
//sent init data if needed
if ( !streamInited){
init_tag.DTSCMetaInit(Strm, Strm.getTrackById(videoID), Strm.getTrackById(audioID));
Socket.SendNow(RTMPStream::SendMedia(init_tag));
if (audioID != -1 && Strm.getTrackById(audioID).isMember("init")){
init_tag.DTSCAudioInit(Strm.getTrackById(audioID));
Socket.SendNow(RTMPStream::SendMedia(init_tag));
}
if (videoID != -1 && Strm.getTrackById(videoID).isMember("init")){
init_tag.DTSCVideoInit(Strm.getTrackById(videoID));
Socket.SendNow(RTMPStream::SendMedia(init_tag));
}
streamInited = true;
}
//sent a tag
tag.DTSCLoader(Strm);
Socket.SendNow(RTMPStream::SendMedia(tag));
#if DEBUG >= 8
fprintf(stderr, "Sent tag to %i: [%u] %s\n", Socket.getSocket(), tag.tagTime(), tag.tagType().c_str());
#endif
}
}
}
}
Socket.close();
ss.SendNow(Socket.getStats("RTMP").c_str());
ss.close();
return 0;
} //Connector_RTMP
///\brief Gets and parses one RTMP chunk at a time.
///\param inputBuffer A buffer filled with chunk data.
void parseChunk(Socket::Buffer & inputBuffer){
//for DTSC conversion
static JSON::Value meta_out;
static std::stringstream prebuffer; // Temporary buffer before sending real data
static bool sending = false;
static unsigned int counter = 0;
//for chunk parsing
static RTMPStream::Chunk next;
static FLV::Tag F;
static AMF::Object amfdata("empty", AMF::AMF0_DDV_CONTAINER);
static AMF::Object amfelem("empty", AMF::AMF0_DDV_CONTAINER);
static AMF::Object3 amf3data("empty", AMF::AMF3_DDV_CONTAINER);
static AMF::Object3 amf3elem("empty", AMF::AMF3_DDV_CONTAINER);
while (next.Parse(inputBuffer)){
//send ACK if we received a whole window
if ((RTMPStream::rec_cnt - RTMPStream::rec_window_at > RTMPStream::rec_window_size)){
RTMPStream::rec_window_at = RTMPStream::rec_cnt;
Socket.Send(RTMPStream::SendCTL(3, RTMPStream::rec_cnt)); //send ack (msg 3)
}
switch (next.msg_type_id){
case 0: //does not exist
#if DEBUG >= 2
fprintf(stderr, "UNKN: Received a zero-type message. Possible data corruption? Aborting!\n");
#endif
while (inputBuffer.size()){
inputBuffer.get().clear();
}
ss.close();
Socket.close();
break; //happens when connection breaks unexpectedly
case 1: //set chunk size
RTMPStream::chunk_rec_max = ntohl(*(int*)next.data.c_str());
#if DEBUG >= 5
fprintf(stderr, "CTRL: Set chunk size: %i\n", RTMPStream::chunk_rec_max);
#endif
break;
case 2: //abort message - we ignore this one
#if DEBUG >= 5
fprintf(stderr, "CTRL: Abort message\n");
#endif
//4 bytes of stream id to drop
break;
case 3: //ack
#if DEBUG >= 8
fprintf(stderr, "CTRL: Acknowledgement\n");
#endif
RTMPStream::snd_window_at = ntohl(*(int*)next.data.c_str());
RTMPStream::snd_window_at = RTMPStream::snd_cnt;
break;
case 4: {
//2 bytes event type, rest = event data
//types:
//0 = stream begin, 4 bytes ID
//1 = stream EOF, 4 bytes ID
//2 = stream dry, 4 bytes ID
//3 = setbufferlen, 4 bytes ID, 4 bytes length
//4 = streamisrecorded, 4 bytes ID
//6 = pingrequest, 4 bytes data
//7 = pingresponse, 4 bytes data
//we don't need to process this
#if DEBUG >= 5
short int ucmtype = ntohs(*(short int*)next.data.c_str());
switch (ucmtype){
case 0:
fprintf(stderr, "CTRL: UCM StreamBegin %i\n", ntohl(*((int*)(next.data.c_str()+2))));
break;
case 1:
fprintf(stderr, "CTRL: UCM StreamEOF %i\n", ntohl(*((int*)(next.data.c_str()+2))));
break;
case 2:
fprintf(stderr, "CTRL: UCM StreamDry %i\n", ntohl(*((int*)(next.data.c_str()+2))));
break;
case 3:
fprintf(stderr, "CTRL: UCM SetBufferLength %i %i\n", ntohl(*((int*)(next.data.c_str()+2))), ntohl(*((int*)(next.data.c_str()+6))));
break;
case 4:
fprintf(stderr, "CTRL: UCM StreamIsRecorded %i\n", ntohl(*((int*)(next.data.c_str()+2))));
break;
case 6:
fprintf(stderr, "CTRL: UCM PingRequest %i\n", ntohl(*((int*)(next.data.c_str()+2))));
break;
case 7:
fprintf(stderr, "CTRL: UCM PingResponse %i\n", ntohl(*((int*)(next.data.c_str()+2))));
break;
default:
fprintf(stderr, "CTRL: UCM Unknown (%hi)\n", ucmtype);
break;
}
#endif
}
break;
case 5: //window size of other end
#if DEBUG >= 5
fprintf(stderr, "CTRL: Window size\n");
#endif
RTMPStream::rec_window_size = ntohl(*(int*)next.data.c_str());
RTMPStream::rec_window_at = RTMPStream::rec_cnt;
Socket.Send(RTMPStream::SendCTL(3, RTMPStream::rec_cnt)); //send ack (msg 3)
break;
case 6:
#if DEBUG >= 5
fprintf(stderr, "CTRL: Set peer bandwidth\n");
#endif
//4 bytes window size, 1 byte limit type (ignored)
RTMPStream::snd_window_size = ntohl(*(int*)next.data.c_str());
Socket.Send(RTMPStream::SendCTL(5, RTMPStream::snd_window_size)); //send window acknowledgement size (msg 5)
break;
case 8: //audio data
case 9: //video data
case 18: //meta data
if (ss.connected()){
if (streamReset){
//reset push data to empty, in case stream properties change
meta_out.null();
prebuffer.str("");
sending = false;
counter = 0;
streamReset = false;
}
F.ChunkLoader(next);
JSON::Value pack_out = F.toJSON(meta_out);
if ( !pack_out.isNull()){
if ( !sending){
counter++;
if (counter > 8){
sending = true;
ss.SendNow(meta_out.toNetPacked());
ss.SendNow(prebuffer.str().c_str(), prebuffer.str().size()); //write buffer
prebuffer.str(""); //clear buffer
ss.SendNow(pack_out.toNetPacked());
}else{
prebuffer << pack_out.toNetPacked();
}
}else{
ss.SendNow(pack_out.toNetPacked());
}
}
}else{
#if DEBUG >= 5
fprintf(stderr, "Received useless media data\n");
#endif
Socket.close();
}
break;
case 15:
#if DEBUG >= 5
fprintf(stderr, "Received AFM3 data message\n");
#endif
break;
case 16:
#if DEBUG >= 5
fprintf(stderr, "Received AFM3 shared object\n");
#endif
break;
case 17: {
#if DEBUG >= 5
fprintf(stderr, "Received AFM3 command message\n");
#endif
if (next.data[0] != 0){
next.data = next.data.substr(1);
amf3data = AMF::parse3(next.data);
#if DEBUG >= 5
amf3data.Print();
#endif
}else{
#if DEBUG >= 5
fprintf(stderr, "Received AFM3-0 command message\n");
#endif
next.data = next.data.substr(1);
amfdata = AMF::parse(next.data);
parseAMFCommand(amfdata, 17, next.msg_stream_id);
} //parsing AMF0-style
}
break;
case 19:
#if DEBUG >= 5
fprintf(stderr, "Received AFM0 shared object\n");
#endif
break;
case 20: { //AMF0 command message
amfdata = AMF::parse(next.data);
parseAMFCommand(amfdata, 20, next.msg_stream_id);
}
break;
case 22:
#if DEBUG >= 5
fprintf(stderr, "Received aggregate message\n");
#endif
break;
default:
#if DEBUG >= 1
fprintf(stderr, "Unknown chunk received! Probably protocol corruption, stopping parsing of incoming data.\n");
#endif
stopParsing = true;
break;
}
}
} //parseChunk