Add C++ support for streaming NeMo CTC models. (#857)

.github/scripts/test-online-ctc.sh

@@ -13,6 +13,28 @@ echo "PATH: $PATH"
 
 which $EXE
 
+log "------------------------------------------------------------"
+log "Run streaming NeMo CTC                                      "
+log "------------------------------------------------------------"
+
+url=https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-streaming-fast-conformer-ctc-en-80ms.tar.bz2
+name=$(basename $url)
+repo=$(basename -s .tar.bz2 $name)
+
+curl -SL -O $url
+tar xvf $name
+rm $name
+ls -lh $repo
+
+$EXE \
+  --nemo-ctc-model=$repo/model.onnx \
+  --tokens=$repo/tokens.txt \
+  $repo/test_wavs/0.wav \
+  $repo/test_wavs/1.wav \
+  $repo/test_wavs/8k.wav
+
+rm -rf $repo
+
 log "------------------------------------------------------------"
 log "Run streaming Zipformer2 CTC HLG decoding                   "
 log "------------------------------------------------------------"

.github/scripts/test-python.sh

@@ -8,6 +8,19 @@ log() {
   echo -e "$(date '+%Y-%m-%d %H:%M:%S') (${fname}:${BASH_LINENO[0]}:${FUNCNAME[1]}) $*"
 }
 
+log "test online NeMo CTC"
+
+url=https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-nemo-streaming-fast-conformer-ctc-en-80ms.tar.bz2
+name=$(basename $url)
+repo=$(basename -s .tar.bz2 $name)
+
+curl -SL -O $url
+tar xvf $name
+rm $name
+ls -lh $repo
+python3 ./python-api-examples/online-nemo-ctc-decode-files.py
+rm -rf $repo
+
 log "test offline punctuation"
 
 curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/punctuation-models/sherpa-onnx-punct-ct-transformer-zh-en-vocab272727-2024-04-12.tar.bz2