Exemplo n.º 1
0
 void inputFLV::getNext(bool smart) {
   static JSON::Value thisPack;
   static AMF::Object amf_storage;
   thisPack.null();
   long long int lastBytePos = ftell(inFile);
   FLV::Tag tmpTag;
   while (!feof(inFile) && !FLV::Parse_Error){
     if (tmpTag.FileLoader(inFile)){
       thisPack = tmpTag.toJSON(myMeta, amf_storage);
       thisPack["bpos"] = lastBytePos;
       if ( !selectedTracks.count(thisPack["trackid"].asInt())){
         getNext();
       }
       break;
     }
   }
   if (FLV::Parse_Error){
     FAIL_MSG("FLV error: %s", FLV::Error_Str.c_str());
     thisPack.null();
     thisPacket.null();
     return;
   }
   std::string tmpStr = thisPack.toNetPacked();
   thisPacket.reInit(tmpStr.data(), tmpStr.size());
 }
Exemplo n.º 2
0
 bool inputFLV::readHeader() {
   JSON::Value lastPack;
   if (!inFile) {
     return false;
   }
   //See whether a separate header file exists.
   DTSC::File tmp(config->getString("input") + ".dtsh");
   if (tmp){
     myMeta = tmp.getMeta();
     return true;
   }
   //Create header file from FLV data
   fseek(inFile, 13, SEEK_SET);
   FLV::Tag tmpTag;
   long long int lastBytePos = 13;
   while (!feof(inFile) && !FLV::Parse_Error){
     if (tmpTag.FileLoader(inFile)){
       lastPack.null();
       lastPack = tmpTag.toJSON(myMeta);
       lastPack["bpos"] = lastBytePos;
       myMeta.update(lastPack);
       lastBytePos = ftell(inFile);
     }
   }
   if (FLV::Parse_Error){
     std::cerr << FLV::Error_Str << std::endl;
     return false;
   }
   std::ofstream oFile(std::string(config->getString("input") + ".dtsh").c_str());
   oFile << myMeta.toJSON().toNetPacked();
   oFile.close();
   return true;
 }
Exemplo n.º 3
0
 void inputFLV::getNext(bool smart) {
   static JSON::Value thisPack;
   thisPack.null();
   long long int lastBytePos = ftell(inFile);
   FLV::Tag tmpTag;
   while (!feof(inFile) && !FLV::Parse_Error){
     if (tmpTag.FileLoader(inFile)){
       thisPack = tmpTag.toJSON(myMeta);
       thisPack["bpos"] = lastBytePos;
       if ( !selectedTracks.count(thisPack["trackid"].asInt())){
         getNext();
       }
       break;
     }
   }
   if (FLV::Parse_Error){
     std::cerr << FLV::Error_Str << std::endl;
     thisPack.null();
     lastPack.null();
     return;
   }
   std::string tmpStr = thisPack.toNetPacked();
   lastPack.reInit(tmpStr.data(), tmpStr.size());
 }
Exemplo n.º 4
0
/// Tries to get and parse one RTMP chunk at a time.
void Connector_RTMP::parseChunk(Socket::Buffer & inbuffer){
  //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;
  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(inbuffer)){

    //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. This is an error.\n");
        #endif
        break;//happens when connection breaks unexpectedly
      case 1://set chunk size
        RTMPStream::chunk_rec_max = ntohl(*(int*)next.data.c_str());
        #if DEBUG >= 4
        fprintf(stderr, "CTRL: Set chunk size: %i\n", RTMPStream::chunk_rec_max);
        #endif
        break;
      case 2://abort message - we ignore this one
        #if DEBUG >= 4
        fprintf(stderr, "CTRL: Abort message\n");
        #endif
        //4 bytes of stream id to drop
        break;
      case 3://ack
        #if DEBUG >= 4
        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 >= 4
        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 >= 4
        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 >= 4
        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()){
          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());//write buffer
                prebuffer.str("");//clear buffer
                SS.Send(pack_out.toNetPacked());
              }else{
                prebuffer << pack_out.toNetPacked();
              }
            }else{
              SS.SendNow(pack_out.toNetPacked());
            }
          }
        }else{
          #if DEBUG >= 4
          fprintf(stderr, "Received useless media data\n");
          #endif
          Socket.close();
        }
        break;
      case 15:
        #if DEBUG >= 4
        fprintf(stderr, "Received AFM3 data message\n");
        #endif
        break;
      case 16:
        #if DEBUG >= 4
        fprintf(stderr, "Received AFM3 shared object\n");
        #endif
        break;
      case 17:{
        #if DEBUG >= 4
        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 >= 4
          amf3data.Print();
          #endif
        }else{
          #if DEBUG >= 4
          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 >= 4
        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 >= 4
        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
        Connector_RTMP::stopparsing = true;
        break;
    }
  }
}//parseChunk