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());
}
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;
}
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());
}
/// 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
