///\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
void Connector_RTMP::sendCommand(AMF::Object & amfreply, int messagetype, int stream_id){
#if DEBUG >= 4
std::cerr << amfreply.Print() << std::endl;
#endif
if (messagetype == 17){
Socket.SendNow(RTMPStream::SendChunk(3, messagetype, stream_id, (char)0+amfreply.Pack()));
}else{
Socket.SendNow(RTMPStream::SendChunk(3, messagetype, stream_id, amfreply.Pack()));
}
}//sendCommand
///\brief Debugging tool for AMF data.
///
/// Expects AMF data through stdin, outputs human-readable information to stderr.
///\return The return code of the analyser.
int analyseAMF(){
std::string amfBuffer;
//Read all of std::cin to amfBuffer
while (std::cin.good()){
amfBuffer += std::cin.get();
}
//Strip the invalid last character
amfBuffer.erase((amfBuffer.end() - 1));
//Parse into an AMF::Object
AMF::Object amfData = AMF::parse(amfBuffer);
//Print the output.
std::cerr << amfData.Print() << std::endl;
return 0;
}
/// Returns a std::string describing the tag in detail.
/// The string includes information about whether the tag is
/// audio, video or metadata, what encoding is used, and the details
/// of the encoding itself.
std::string FLV::Tag::tagType() {
std::stringstream R;
R << len << " bytes of ";
switch (data[0]) {
case 0x09:
R << getVideoCodec() << " video ";
switch (data[11] & 0xF0) {
case 0x10:
R << "keyframe";
break;
case 0x20:
R << "iframe";
break;
case 0x30:
R << "disposableiframe";
break;
case 0x40:
R << "generatedkeyframe";
break;
case 0x50:
R << "videoinfo";
break;
}
if ((data[11] & 0x0F) == 7) {
switch (data[12]) {
case 0:
R << " header";
break;
case 1:
R << " NALU";
break;
case 2:
R << " endofsequence";
break;
}
}
break;
case 0x08:
R << getAudioCodec();
switch (data[11] & 0x0C) {
case 0x0:
R << " 5.5kHz";
break;
case 0x4:
R << " 11kHz";
break;
case 0x8:
R << " 22kHz";
break;
case 0xC:
R << " 44kHz";
break;
}
switch (data[11] & 0x02) {
case 0:
R << " 8bit";
break;
case 2:
R << " 16bit";
break;
}
switch (data[11] & 0x01) {
case 0:
R << " mono";
break;
case 1:
R << " stereo";
break;
}
R << " audio";
if ((data[12] == 0) && ((data[11] & 0xF0) == 0xA0)) {
R << " initdata";
}
break;
case 0x12: {
R << "(meta)data: ";
AMF::Object metadata = AMF::parse((unsigned char *)data + 11, len - 15);
R << metadata.Print();
break;
}
default:
R << "unknown";
break;
}
return R.str();
} //FLV::Tag::tagtype
void Connector_RTMP::parseAMFCommand(AMF::Object & amfdata, int messagetype, int stream_id){
#if DEBUG >= 4
fprintf(stderr, "Received command: %s\n", amfdata.Print().c_str());
#endif
#if DEBUG >= 3
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 >= 4
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
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, stream_id);
//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, stream_id);
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, stream_id);
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() == "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, stream_id);
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;
}
SS.Send("P ");
SS.Send(Socket.getHost().c_str());
SS.Send("\n");
nostats = true;
#if DEBUG >= 4
fprintf(stderr, "Connected to buffer, starting to send data...\n");
#endif
}
//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, stream_id);
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, stream_id);
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, stream_id);
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
play_trans = amfdata.getContentP(1)->NumValue();
play_msgtype = messagetype;
play_streamid = stream_id;
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
play_trans = amfdata.getContentP(1)->NumValue();
play_msgtype = messagetype;
play_streamid = stream_id;
stream_inited = 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, play_msgtype, play_streamid);
SS.Send("s ");
SS.Send(JSON::Value((long long int)amfdata.getContentP(3)->NumValue()).asString().c_str());
SS.Send("\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, play_msgtype, play_streamid);
}else{
SS.Send("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, play_msgtype, play_streamid);
}
return;
}//seek
#if DEBUG >= 2
fprintf(stderr, "AMF0 command not processed! :(\n");
#endif
}//parseAMFCommand
