Initial commit: FunASR Speech Recognition Toolkit

Add complete FunASR codebase including models, runtime, and documentation.
2026-07-09 22:38:58 +08:00
commit 6116b1f3c6
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+// fstext/prune-special-test.cc
+
+// Copyright 2014  Guoguo Chen
+
+// See ../../COPYING for clarification regarding multiple authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+// MERCHANTABLITY OR NON-INFRINGEMENT.
+// See the Apache 2 License for the specific language governing permissions and
+// limitations under the License.
+
+
+#include "fstext/prune-special.h"
+#include "fstext/rand-fst.h"
+#include "fstext/fstext-utils.h"
+
+namespace fst {
+
+static void TestPruneSpecial() {
+  typedef StdArc Arc;
+  typedef Arc::Label Label;
+  typedef Arc::StateId StateId;
+  typedef Arc::Weight Weight;
+
+  RandFstOptions opts;
+  opts.acyclic = false;
+  VectorFst<Arc> *ifst = RandFst<StdArc>(opts);
+
+  float beam = 0.55;
+
+  {
+    FstPrinter<Arc> fstprinter(*ifst, NULL, NULL, NULL, false, true, "\t");
+    fstprinter.Print(&std::cout, "standard output");
+    std::cout << std::endl;
+  }
+
+  // Do the special pruning.
+  VectorFst<Arc> ofst1;
+  PruneSpecial<StdArc>(*ifst, &ofst1, beam);
+  {
+    FstPrinter<Arc> fstprinter(ofst1, NULL, NULL, NULL, false, true, "\t");
+    fstprinter.Print(&std::cout, "standard output");
+    std::cout << std::endl;
+  }
+
+  // Do the normal pruning.
+  VectorFst<Arc> ofst2;
+  Prune(*ifst, &ofst2, beam);
+  {
+    FstPrinter<Arc> fstprinter(ofst2, NULL, NULL, NULL, false, true, "\t");
+    fstprinter.Print(&std::cout, "standard output");
+    std::cout << std::endl;
+  }
+
+  KALDI_ASSERT(RandEquivalent(ofst1, ofst2,
+                              5/*paths*/, 0.01/*delta*/, kaldi::Rand()/*seed*/,
+                              100/*path length-- max?*/));
+
+  delete ifst;
+}
+
+
+} // namespace fst
+
+int main() {
+  kaldi::g_kaldi_verbose_level = 4;
+  using namespace fst;
+  for (int i = 0; i < 25; i++) {
+    TestPruneSpecial();
+  }
+}