add online-recognizer (#29)

2023-02-19 12:45:38 +08:00
parent d4b0c0590a
commit ebc3b47fb8
11 changed files with 267 additions and 61 deletions
--- a/sherpa-onnx/csrc/online-transducer-decoder.h
+++ b/sherpa-onnx/csrc/online-transducer-decoder.h
@@ -26,13 +26,14 @@ class OnlineTransducerDecoder {
   * to the beginning of the decoding result, which will be
   * stripped by calling `StripPrecedingBlanks()`.
   */
-  virtual OnlineTransducerDecoderResult GetEmptyResult() = 0;
+  virtual OnlineTransducerDecoderResult GetEmptyResult() const = 0;

  /** Strip blanks added by `GetEmptyResult()`.
   *
   * @param r It is changed in-place.
   */
-  virtual void StripLeadingBlanks(OnlineTransducerDecoderResult * /*r*/) {}
+  virtual void StripLeadingBlanks(OnlineTransducerDecoderResult * /*r*/) const {
+  }

  /** Run transducer beam search given the output from the encoder model.
   *