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Implemented live fragmenting into ~10-second fragments through new metadata.

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Thulinma 2013-03-05 17:22:28 +01:00
parent 23e87450c7
commit f487e9b4ec
1 changed files with 45 additions and 0 deletions
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45
lib/dtsc.cpp
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@ -321,6 +321,51 @@ void DTSC::Stream::updateHeaders(){
metadata["keynum"].append(metadata["keynum"][metadata["keynum"].size() - 1].asInt() + 1);
}
metadata["keylen"].append(buffers[keyframes[0].b]["time"].asInt() - buffers[keyframes[1].b]["time"].asInt());
long long int firstFragNo = -1;
metadata["frags"].null();
long long int currFrag = metadata["keytime"][0u].asInt() / 10000;
if (currFrag == 0){
long long int fragLen = 1;
long long int fragDur = metadata["keylen"][0u].asInt();
for (unsigned int j = 1; j < metadata["keytime"].size(); j++){
if (metadata["keytime"][j].asInt() / 10000 > currFrag){
if (firstFragNo == -1){
firstFragNo = currFrag;
}
JSON::Value thisFrag;
thisFrag["num"] = metadata["keynum"][0u];
thisFrag["len"] = fragLen;
thisFrag["dur"] = fragDur;
metadata["frags"].append(thisFrag);
break;
}
fragLen++;
fragDur += metadata["keylen"][j].asInt();
}
}
for (unsigned int i = 1; i < metadata["keytime"].size(); i++){
if (metadata["keytime"][i].asInt() / 10000 > currFrag){
currFrag = metadata["keytime"][i].asInt() / 10000;
long long int fragLen = 1;
long long int fragDur = metadata["keylen"][i].asInt();
for (unsigned int j = i + 1; j < metadata["keytime"].size(); j++){
if (metadata["keytime"][j].asInt() / 10000 > currFrag){
if (firstFragNo == -1){
firstFragNo = currFrag;
}
JSON::Value thisFrag;
thisFrag["num"] = metadata["keynum"][i];
thisFrag["len"] = fragLen;
thisFrag["dur"] = fragDur;
metadata["frags"].append(thisFrag);
break;
}
fragLen++;
fragDur += metadata["keylen"][j].asInt();
}
}
}
metadata["missed_frags"] = firstFragNo;
metadata["lastms"] = buffers[keyframes[0].b]["time"].asInt();
metadata["buffer_window"] = (long long int)buffertime;
metadata["live"] = true;