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Fix FLV2DTSC binary and add some checks in the flv_tag lib.

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Thulinma 2012-05-11 18:39:24 +02:00
parent 995a20b91e
commit b19c800f34
1 changed files with 6 additions and 0 deletions
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6
lib/flv_tag.cpp
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@ -866,8 +866,10 @@ DTSC::DTMI FLV::Tag::toDTSC(DTSC::DTMI & metadata){
}
}
if ((audiodata & 0xF0) == 0xA0){
if (len < 18){return DTSC::DTMI();}
pack_out.addContent(DTSC::DTMI("data", std::string((char*)data+13, (size_t)len-17)));
}else{
if (len < 17){return DTSC::DTMI();}
pack_out.addContent(DTSC::DTMI("data", std::string((char*)data+12, (size_t)len-16)));
}
return pack_out;
@ -876,8 +878,10 @@ DTSC::DTMI FLV::Tag::toDTSC(DTSC::DTMI & metadata){
char videodata = data[11];
if (needsInitData() && isInitData()){
if ((videodata & 0x0F) == 7){
if (len < 21){return DTSC::DTMI();}
Meta_Put(metadata, "video", "init", std::string((char*)data+16, (size_t)len-20));
}else{
if (len < 17){return DTSC::DTMI();}
Meta_Put(metadata, "video", "init", std::string((char*)data+12, (size_t)len-16));
}
return pack_out;//skip rest of parsing, get next tag.
@ -908,8 +912,10 @@ DTSC::DTMI FLV::Tag::toDTSC(DTSC::DTMI & metadata){
int offset = (data[13] << 16) + (data[14] << 8) + data[15];
offset = (offset << 8) >> 8;
pack_out.addContent(DTSC::DTMI("offset", offset));
if (len < 21){return DTSC::DTMI();}
pack_out.addContent(DTSC::DTMI("data", std::string((char*)data+16, (size_t)len-20)));
}else{
if (len < 17){return DTSC::DTMI();}
pack_out.addContent(DTSC::DTMI("data", std::string((char*)data+12, (size_t)len-16)));
}
return pack_out;