- Made HLS no longer skip first fragment.

- Ignore metadata tracks and invalid tracks for buffer calculations.
- Fixed statistics.

src/input/input_buffer.cpp

@@ -57,6 +57,7 @@ namespace Mist {
     long long unsigned int firstms = 0xFFFFFFFFFFFFFFFFull;
     long long unsigned int lastms = 0;
     for (std::map<unsigned int, DTSC::Track>::iterator it = myMeta.tracks.begin(); it != myMeta.tracks.end(); it++) {
+      if (it->second.type == "meta" || !it->second.type.size()){continue;}
       if (it->second.init.size()){
         if (!initData.count(it->first) || initData[it->first] != it->second.init){
           initData[it->first] = it->second.init;