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[src] Fix to bug in ivector extraction causing assert failure, thx: sray #3365

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Merged
danpovey merged 1 commit into from
Jun 4, 2019
Merged

[src] Fix to bug in ivector extraction causing assert failure, thx: sray #3365

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3 changes: 3 additions & 0 deletions src/online2/online-ivector-feature.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -195,6 +195,9 @@ void OnlineIvectorFeature::UpdateStatsForFrames(
// Remove duplicates of frames.
MergePairVectorSumming(&frame_weights);

if (frame_weights.empty())
return;

int32 num_frames = static_cast<int32>(frame_weights.size());
int32 feat_dim = lda_normalized_->Dim();
Matrix<BaseFloat> feats(num_frames, feat_dim, kUndefined),
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