add support: use -1 to denote the end of utterance in MLF

1 files changed, 4 insertions, 1 deletions

diff --git a/tnet_io/KaldiLib/Labels.cc b/tnet_io/KaldiLib/Labels.cc
index 1af4447..8b04cde 100644
--- a/tnet_io/KaldiLib/Labels.cc
+++ b/tnet_io/KaldiLib/Labels.cc
@@ -372,7 +372,10 @@ namespace TNet {
 
                 //divide beg/end by sourceRate and round up to get interval of frames
                 beg = (beg+sourceRate/2)/sourceRate;
-                end = (end+sourceRate/2)/sourceRate; 
+                if (end == (unsigned long long)-1)
+                    end = rDesired[prev].Rows();
+                else
+                    end = (end+sourceRate/2)/sourceRate; 
                 //beg = (int)round(beg / (double)sourceRate);
                 //end = (int)round(end / (double)sourceRate);