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Working DTSC2 -> FLV

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This commit is contained in:
Thulinma 2013-06-06 14:23:31 +02:00
parent 1449e9e73e
commit 64c97d15a3
3 changed files with 54 additions and 56 deletions
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25
lib/dtsc.cpp
View file

@ -85,9 +85,6 @@ bool DTSC::Stream::parsePacket(std::string & buffer){
}
if (version == 2){
buffers.front() = JSON::fromDTMI2(buffer.substr(8));
if (!buffers.front().isMember("datatype")){
buffers.front()["datatype"] = metadata["tracks"][trackMapping[buffers.front()["trackid"].asInt()]]["type"];
}
}
datapointertype = INVALID;
if (buffers.front().isMember("data")){
@ -95,8 +92,13 @@ bool DTSC::Stream::parsePacket(std::string & buffer){
}else{
datapointer = 0;
}
std::string tmp = "";
if (buffers.front().isMember("trackid")){
tmp = getTrackById(buffers.front()["trackid"].asInt())["type"].asString();
}
if (buffers.front().isMember("datatype")){
std::string tmp = buffers.front()["datatype"].asString();
tmp = buffers.front()["datatype"].asString();
}
if (tmp == "video"){
datapointertype = VIDEO;
}
@ -109,7 +111,6 @@ bool DTSC::Stream::parsePacket(std::string & buffer){
if (tmp == "pause_marker"){
datapointertype = PAUSEMARK;
}
}
buffer.erase(0, len + 8);
while (buffers.size() > buffercount){
buffers.pop_back();
@ -189,9 +190,6 @@ bool DTSC::Stream::parsePacket(Socket::Buffer & buffer){
}
if (version == 2){
buffers.front() = JSON::fromDTMI2(wholepacket.substr(8));
if (!buffers.front().isMember("datatype")){
buffers.front()["datatype"] = metadata["tracks"][trackMapping[buffers.front()["trackid"].asInt()]]["type"];
}
}
datapointertype = INVALID;
if (buffers.front().isMember("data")){
@ -199,8 +197,13 @@ bool DTSC::Stream::parsePacket(Socket::Buffer & buffer){
}else{
datapointer = 0;
}
std::string tmp = "";
if (buffers.front().isMember("trackid")){
tmp = getTrackById(buffers.front()["trackid"].asInt())["type"].asString();
}
if (buffers.front().isMember("datatype")){
std::string tmp = buffers.front()["datatype"].asString();
tmp = buffers.front()["datatype"].asString();
}
if (tmp == "video"){
datapointertype = VIDEO;
}
@ -213,7 +216,6 @@ bool DTSC::Stream::parsePacket(Socket::Buffer & buffer){
if (tmp == "pause_marker"){
datapointertype = PAUSEMARK;
}
}
while (buffers.size() > buffercount){
buffers.pop_back();
}
@ -795,9 +797,6 @@ void DTSC::File::seekNext(){
}
if (version == 2){
jsonbuffer = JSON::fromDTMI2(strbuffer);
if (!jsonbuffer.isMember("datatype")){
jsonbuffer["datatype"] = metadata["tracks"][trackMapping[jsonbuffer["trackid"].asInt()]]["type"];
}
}else{
jsonbuffer = JSON::fromDTMI(strbuffer);
}

39
lib/flv_tag.cpp
View file

@ -350,19 +350,20 @@ FLV::Tag & FLV::Tag::operator=(const FLV::Tag& O){
/// Takes the DTSC data and makes it into FLV.
bool FLV::Tag::DTSCLoader(DTSC::Stream & S){
std::string meta_str;
JSON::Value & track = S.getTrackById(S.getPacket()["trackid"].asInt());
switch (S.lastType()){
case DTSC::VIDEO:
len = S.lastData().length() + 16;
if (S.metadata.isMember("video") && S.metadata["video"].isMember("codec")){
if (S.metadata["video"]["codec"].asString() == "H264"){
if (track && track.isMember("codec")){
if (track["codec"].asString() == "H264"){
len += 4;
}
}
break;
case DTSC::AUDIO:
len = S.lastData().length() + 16;
if (S.metadata.isMember("audio") && S.metadata["audio"].isMember("codec")){
if (S.metadata["audio"]["codec"].asString() == "AAC"){
if (track && track.isMember("codec")){
if (track["codec"].asString() == "AAC"){
len += 1;
}
}
@ -406,10 +407,10 @@ bool FLV::Tag::DTSCLoader(DTSC::Stream & S){
data[15] = offset & 0xFF;
}
data[11] = 0;
if (S.metadata["video"]["codec"].asString() == "H264"){
if (track.isMember("codec") && track["codec"].asString() == "H264"){
data[11] += 7;
}
if (S.metadata["video"]["codec"].asString() == "H263"){
if (track.isMember("codec") && track["codec"].asString() == "H263"){
data[11] += 2;
}
if (S.getPacket().isMember("keyframe")){
@ -430,13 +431,13 @@ bool FLV::Tag::DTSCLoader(DTSC::Stream & S){
data[12] = 1; //raw AAC data, not sequence header
}
data[11] = 0;
if (S.metadata["audio"]["codec"].asString() == "AAC"){
if (track.isMember("codec") && track["codec"].asString() == "AAC"){
data[11] += 0xA0;
}
if (S.metadata["audio"]["codec"].asString() == "MP3"){
if (track.isMember("codec") && track["codec"].asString() == "MP3"){
data[11] += 0x20;
}
unsigned int datarate = S.metadata["audio"]["rate"].asInt();
unsigned int datarate = track["rate"].asInt();
if (datarate >= 44100){
data[11] += 0x0C;
}else if (datarate >= 22050){
@ -444,10 +445,10 @@ bool FLV::Tag::DTSCLoader(DTSC::Stream & S){
}else if (datarate >= 11025){
data[11] += 0x04;
}
if (S.metadata["audio"]["size"].asInt() == 16){
if (track["size"].asInt() == 16){
data[11] += 0x02;
}
if (S.metadata["audio"]["channels"].asInt() > 1){
if (track["channels"].asInt() > 1){
data[11] += 0x01;
}
break;
@ -594,9 +595,7 @@ bool FLV::Tag::DTSCAudioInit(JSON::Value & audio){
/// FLV metadata loader function from DTSC.
/// Takes the DTSC metadata and makes it into FLV.
/// Assumes metadata is available - so check before calling!
bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, std::string vidName, std::string audName){
JSON::Value & videoRef = S.metadata["tracks"][vidName];
JSON::Value & audioRef = S.metadata["tracks"][audName];
bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, JSON::Value & videoRef, JSON::Value & audioRef){
//Unknown? Assume AAC.
if (audioRef["codec"].asString() == "?"){
audioRef["codec"] = "AAC";
@ -617,10 +616,10 @@ bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, std::string vidName, std::string a
keys.addContent(AMF::Object("filepositions", AMF::AMF0_STRICT_ARRAY));
keys.addContent(AMF::Object("times", AMF::AMF0_STRICT_ARRAY));
int total_byterate = 0;
if (vidName != ""){
if (videoRef){
total_byterate += videoRef["bps"].asInt();
}
if (audName != ""){
if (audioRef){
total_byterate += audioRef["bps"].asInt();
}
for (int i = 0; i < S.metadata["length"].asInt(); ++i){ //for each second in the file
@ -629,7 +628,7 @@ bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, std::string vidName, std::string a
}
amfdata.getContentP(1)->addContent(keys);
}
if (vidName != ""){
if (videoRef){
amfdata.getContentP(1)->addContent(AMF::Object("hasVideo", 1, AMF::AMF0_BOOL));
if (videoRef["codec"].asString() == "H264"){
amfdata.getContentP(1)->addContent(AMF::Object("videocodecid", (std::string)"avc1"));
@ -653,7 +652,7 @@ bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, std::string vidName, std::string a
amfdata.getContentP(1)->addContent(AMF::Object("videodatarate", (double)videoRef["bps"].asInt() * 128.0, AMF::AMF0_NUMBER));
}
}
if (audName != ""){
if (audioRef){
amfdata.getContentP(1)->addContent(AMF::Object("hasAudio", 1, AMF::AMF0_BOOL));
amfdata.getContentP(1)->addContent(AMF::Object("audiodelay", 0, AMF::AMF0_NUMBER));
if (audioRef["codec"].asString() == "AAC"){
@ -677,7 +676,7 @@ bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, std::string vidName, std::string a
}
AMF::Object trinfo = AMF::Object("trackinfo", AMF::AMF0_STRICT_ARRAY);
int i = 0;
if (audName != ""){
if (audioRef){
trinfo.addContent(AMF::Object("", AMF::AMF0_OBJECT));
trinfo.getContentP(i)->addContent(
AMF::Object("length", ((double)S.metadata["length"].asInt()) * ((double)audioRef["rate"].asInt()), AMF::AMF0_NUMBER));
@ -691,7 +690,7 @@ bool FLV::Tag::DTSCMetaInit(DTSC::Stream & S, std::string vidName, std::string a
}
++i;
}
if (vidName != ""){
if (videoRef){
trinfo.addContent(AMF::Object("", AMF::AMF0_OBJECT));
trinfo.getContentP(i)->addContent(
AMF::Object("length", ((double)S.metadata["length"].asInt()) * ((double)videoRef["fkps"].asInt() / 1000.0), AMF::AMF0_NUMBER));

2
lib/flv_tag.h
View file

@ -49,7 +49,7 @@ namespace FLV {
bool DTSCVideoInit(JSON::Value & video);
bool DTSCAudioInit(DTSC::Stream & S);
bool DTSCAudioInit(JSON::Value & audio);
bool DTSCMetaInit(DTSC::Stream & S, std::string vidName = "", std::string audName = "");
bool DTSCMetaInit(DTSC::Stream & S, JSON::Value & videoRef, JSON::Value & audioRef);
JSON::Value toJSON(JSON::Value & metadata);
bool MemLoader(char * D, unsigned int S, unsigned int & P);
bool FileLoader(FILE * f);