From 96a32415ab43377cf1575bd3f4f2980f58028209 Mon Sep 17 00:00:00 2001
From: Determinant <ted.sybil@gmail.com>
Date: Fri, 14 Aug 2015 11:51:42 +0800
Subject: add implementation for kaldi io (by ymz)

---
 .../openfst/include/fst/script/randequivalent.h    | 105 +++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 kaldi_io/src/tools/openfst/include/fst/script/randequivalent.h

(limited to 'kaldi_io/src/tools/openfst/include/fst/script/randequivalent.h')

diff --git a/kaldi_io/src/tools/openfst/include/fst/script/randequivalent.h b/kaldi_io/src/tools/openfst/include/fst/script/randequivalent.h
new file mode 100644
index 0000000..b929683
--- /dev/null
+++ b/kaldi_io/src/tools/openfst/include/fst/script/randequivalent.h
@@ -0,0 +1,105 @@
+
+// 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
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Copyright 2005-2010 Google, Inc.
+// Author: jpr@google.com (Jake Ratkiewicz)
+
+#ifndef FST_SCRIPT_RANDEQUIVALENT_H_
+#define FST_SCRIPT_RANDEQUIVALENT_H_
+
+#include <fst/script/arg-packs.h>
+#include <fst/script/fst-class.h>
+#include <fst/script/randgen.h>  // for RandArcSelection
+#include <fst/randequivalent.h>
+
+namespace fst {
+namespace script {
+
+// 1
+typedef args::Package<const FstClass&, const FstClass&,
+                      int32, float, int, int> RandEquivalentInnerArgs1;
+typedef args::WithReturnValue<bool,
+                              RandEquivalentInnerArgs1> RandEquivalentArgs1;
+
+template<class Arc>
+void RandEquivalent(RandEquivalentArgs1 *args) {
+  const Fst<Arc> &fst1 = *(args->args.arg1.GetFst<Arc>());
+  const Fst<Arc> &fst2 = *(args->args.arg2.GetFst<Arc>());
+
+  args->retval = RandEquivalent(fst1, fst2, args->args.arg3, args->args.arg4,
+                                args->args.arg5, args->args.arg6);
+}
+
+// 2
+typedef args::Package<const FstClass &, const FstClass &, int32,
+                      ssize_t, float,
+                      const RandGenOptions<RandArcSelection> &>
+  RandEquivalentInnerArgs2;
+
+typedef args::WithReturnValue<bool,
+                              RandEquivalentInnerArgs2> RandEquivalentArgs2;
+
+template<class Arc>
+void RandEquivalent(RandEquivalentArgs2 *args) {
+  const Fst<Arc> &fst1 = *(args->args.arg1.GetFst<Arc>());
+  const Fst<Arc> &fst2 = *(args->args.arg2.GetFst<Arc>());
+  const RandGenOptions<RandArcSelection> &opts = args->args.arg6;
+  int32 seed = args->args.arg3;
+
+  if (opts.arc_selector == UNIFORM_ARC_SELECTOR) {
+    UniformArcSelector<Arc> arc_selector(seed);
+    RandGenOptions< UniformArcSelector<Arc> >
+        ropts(arc_selector, opts.max_length, opts.npath);
+
+    args->retval = RandEquivalent(fst1, fst2, args->args.arg4,
+                                  args->args.arg5, ropts);
+  } else if (opts.arc_selector == FAST_LOG_PROB_ARC_SELECTOR) {
+    FastLogProbArcSelector<Arc> arc_selector(seed);
+    RandGenOptions< FastLogProbArcSelector<Arc> >
+        ropts(arc_selector, opts.max_length, opts.npath);
+
+    args->retval = RandEquivalent(fst1, fst2, args->args.arg4,
+                                  args->args.arg5, ropts);
+  } else {
+    LogProbArcSelector<Arc> arc_selector(seed);
+    RandGenOptions< LogProbArcSelector<Arc> >
+        ropts(arc_selector, opts.max_length, opts.npath);
+    args->retval = RandEquivalent(fst1, fst2, args->args.arg4,
+                                  args->args.arg5, ropts);
+  }
+}
+
+
+// 1
+bool RandEquivalent(const FstClass &fst1,
+                    const FstClass &fst2,
+                    int32 seed = time(0),
+                    ssize_t num_paths = 1,
+                    float delta = fst::kDelta,
+                    int path_length = INT_MAX);
+
+// 2
+bool RandEquivalent(const FstClass &fst1,
+                    const FstClass &fst2,
+                    int32 seed,
+                    ssize_t num_paths,
+                    float delta,
+                    const fst::RandGenOptions<
+                      fst::script::RandArcSelection> &opts);
+
+}  // namespace script
+}  // namespace fst
+
+
+
+#endif  // FST_SCRIPT_RANDEQUIVALENT_H_
-- 
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