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Add CTC HLG decoding for JNI (#810)

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This commit is contained in:
Fangjun Kuang
2024-04-25 17:20:02 +08:00
committed by GitHub
parent 6686c7d3e6
commit f7b3735621
21 changed files with 429 additions and 13 deletions
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8
sherpa-onnx/java-api/Makefile
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@@ -14,6 +14,7 @@ java_files += OnlineParaformerModelConfig.java
java_files += OnlineZipformer2CtcModelConfig.java
java_files += OnlineTransducerModelConfig.java
java_files += OnlineModelConfig.java
java_files += OnlineCtcFstDecoderConfig.java
java_files += OnlineStream.java
java_files += OnlineRecognizerConfig.java
java_files += OnlineRecognizerResult.java
@@ -22,6 +23,7 @@ java_files += OnlineRecognizer.java
java_files += OfflineTransducerModelConfig.java
java_files += OfflineParaformerModelConfig.java
java_files += OfflineWhisperModelConfig.java
java_files += OfflineNemoEncDecCtcModelConfig.java
java_files += OfflineModelConfig.java
java_files += OfflineRecognizerConfig.java
java_files += OfflineRecognizerResult.java
@@ -42,10 +44,12 @@ $(info -- class files $(class_files))
all: $(out_jar)
$(out_jar): $(class_files)
jar --create --verbose --file $(out_jar) -C $(out_dir) .
# jar --create --verbose --file $(out_jar) -C $(out_dir) ./
jar cvf $(out_jar) -C $(out_dir) ./
clean:
$(RM) -rfv $(out_dir)
$(class_files): $(out_dir)/$(package_dir)/%.class: src/$(package_dir)/%.java
javac -d $(out_dir) --class-path $(out_dir) $<
mkdir -p build
javac -d $(out_dir) -cp $(out_dir) $<

8
sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineModelConfig.java
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@@ -5,6 +5,7 @@ public class OfflineModelConfig {
private final OfflineTransducerModelConfig transducer;
private final OfflineParaformerModelConfig paraformer;
private final OfflineWhisperModelConfig whisper;
private final OfflineNemoEncDecCtcModelConfig nemo;
private final String tokens;
private final int numThreads;
private final boolean debug;
@@ -16,6 +17,7 @@ public class OfflineModelConfig {
this.transducer = builder.transducer;
this.paraformer = builder.paraformer;
this.whisper = builder.whisper;
this.nemo = builder.nemo;
this.tokens = builder.tokens;
this.numThreads = builder.numThreads;
this.debug = builder.debug;
@@ -64,6 +66,7 @@ public class OfflineModelConfig {
private OfflineParaformerModelConfig paraformer = OfflineParaformerModelConfig.builder().build();
private OfflineTransducerModelConfig transducer = OfflineTransducerModelConfig.builder().build();
private OfflineWhisperModelConfig whisper = OfflineWhisperModelConfig.builder().build();
private OfflineNemoEncDecCtcModelConfig nemo = OfflineNemoEncDecCtcModelConfig.builder().build();
private String tokens = "";
private int numThreads = 1;
private boolean debug = true;
@@ -84,6 +87,11 @@ public class OfflineModelConfig {
return this;
}
public Builder setNemo(OfflineNemoEncDecCtcModelConfig nemo) {
this.nemo = nemo;
return this;
}
public Builder setWhisper(OfflineWhisperModelConfig whisper) {
this.whisper = whisper;
return this;

31
sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineNemoEncDecCtcModelConfig.java Normal file
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@@ -0,0 +1,31 @@
// Copyright 2024 Xiaomi Corporation
package com.k2fsa.sherpa.onnx;
public class OfflineNemoEncDecCtcModelConfig {
private final String model;
private OfflineNemoEncDecCtcModelConfig(Builder builder) {
this.model = builder.model;
}
public static Builder builder() {
return new Builder();
}
public String getModel() {
return model;
}
public static class Builder {
private String model = "";
public OfflineNemoEncDecCtcModelConfig build() {
return new OfflineNemoEncDecCtcModelConfig(this);
}
public Builder setModel(String model) {
this.model = model;
return this;
}
}
}

43
sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OnlineCtcFstDecoderConfig.java Normal file
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@@ -0,0 +1,43 @@
// Copyright 2024 Xiaomi Corporation
package com.k2fsa.sherpa.onnx;
public class OnlineCtcFstDecoderConfig {
private final String graph;
private final int maxActive;
private OnlineCtcFstDecoderConfig(Builder builder) {
this.graph = builder.graph;
this.maxActive = builder.maxActive;
}
public static Builder builder() {
return new Builder();
}
public String getGraph() {
return graph;
}
public float getMaxActive() {
return maxActive;
}
public static class Builder {
private String graph = "";
private int maxActive = 3000;
public OnlineCtcFstDecoderConfig build() {
return new OnlineCtcFstDecoderConfig(this);
}
public Builder setGraph(String model) {
this.graph = graph;
return this;
}
public Builder setMaxActive(int maxActive) {
this.maxActive = maxActive;
return this;
}
}
}

9
sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OnlineRecognizerConfig.java
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@@ -6,6 +6,8 @@ public class OnlineRecognizerConfig {
private final FeatureConfig featConfig;
private final OnlineModelConfig modelConfig;
private final OnlineLMConfig lmConfig;
private final OnlineCtcFstDecoderConfig ctcFstDecoderConfig;
private final EndpointConfig endpointConfig;
private final boolean enableEndpoint;
private final String decodingMethod;
@@ -17,6 +19,7 @@ public class OnlineRecognizerConfig {
this.featConfig = builder.featConfig;
this.modelConfig = builder.modelConfig;
this.lmConfig = builder.lmConfig;
this.ctcFstDecoderConfig = builder.ctcFstDecoderConfig;
this.endpointConfig = builder.endpointConfig;
this.enableEndpoint = builder.enableEndpoint;
this.decodingMethod = builder.decodingMethod;
@@ -37,6 +40,7 @@ public class OnlineRecognizerConfig {
private FeatureConfig featConfig = FeatureConfig.builder().build();
private OnlineModelConfig modelConfig = OnlineModelConfig.builder().build();
private OnlineLMConfig lmConfig = OnlineLMConfig.builder().build();
private OnlineCtcFstDecoderConfig ctcFstDecoderConfig = OnlineCtcFstDecoderConfig.builder().build();
private EndpointConfig endpointConfig = EndpointConfig.builder().build();
private boolean enableEndpoint = true;
private String decodingMethod = "greedy_search";
@@ -63,6 +67,11 @@ public class OnlineRecognizerConfig {
return this;
}
public Builder setCtcFstDecoderConfig(OnlineCtcFstDecoderConfig ctcFstDecoderConfig) {
this.ctcFstDecoderConfig = ctcFstDecoderConfig;
return this;
}
public Builder setEndpointConfig(EndpointConfig endpointConfig) {
this.endpointConfig = endpointConfig;
return this;

13
sherpa-onnx/jni/offline-recognizer.cc
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@@ -147,6 +147,19 @@ static OfflineRecognizerConfig GetOfflineConfig(JNIEnv *env, jobject config) {
ans.model_config.whisper.tail_paddings =
env->GetIntField(whisper_config, fid);
fid = env->GetFieldID(
model_config_cls, "nemo",
"Lcom/k2fsa/sherpa/onnx/OfflineNemoEncDecCtcModelConfig;");
jobject nemo_config = env->GetObjectField(model_config, fid);
jclass nemo_config_cls = env->GetObjectClass(nemo_config);
fid = env->GetFieldID(paraformer_config_cls, "model", "Ljava/lang/String;");
s = (jstring)env->GetObjectField(nemo_config, fid);
p = env->GetStringUTFChars(s, nullptr);
ans.model_config.nemo_ctc.model = p;
env->ReleaseStringUTFChars(s, p);
return ans;
}

16
sherpa-onnx/jni/online-recognizer.cc
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@@ -198,6 +198,22 @@ static OnlineRecognizerConfig GetConfig(JNIEnv *env, jobject config) {
fid = env->GetFieldID(lm_model_config_cls, "scale", "F");
ans.lm_config.scale = env->GetFloatField(lm_model_config, fid);
fid = env->GetFieldID(cls, "ctcFstDecoderConfig",
"Lcom/k2fsa/sherpa/onnx/OnlineCtcFstDecoderConfig;");
jobject fst_decoder_config = env->GetObjectField(config, fid);
jclass fst_decoder_config_cls = env->GetObjectClass(fst_decoder_config);
fid = env->GetFieldID(fst_decoder_config_cls, "graph", "Ljava/lang/String;");
s = (jstring)env->GetObjectField(fst_decoder_config, fid);
p = env->GetStringUTFChars(s, nullptr);
ans.ctc_fst_decoder_config.graph = p;
env->ReleaseStringUTFChars(s, p);
fid = env->GetFieldID(fst_decoder_config_cls, "maxActive", "I");
ans.ctc_fst_decoder_config.max_active =
env->GetIntField(fst_decoder_config, fid);
return ans;
}
} // namespace sherpa_onnx

1
sherpa-onnx/jni/wave-reader.cc
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@@ -6,6 +6,7 @@
#include <fstream>
#include "sherpa-onnx/csrc/macros.h"
#include "sherpa-onnx/csrc/onnx-utils.h"
#include "sherpa-onnx/jni/common.h"
static jobjectArray ReadWaveImpl(JNIEnv *env, std::istream &is,

15
sherpa-onnx/kotlin-api/OfflineRecognizer.kt
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@@ -18,6 +18,10 @@ data class OfflineParaformerModelConfig(
var model: String = "",
)
data class OfflineNemoEncDecCtcModelConfig(
var model: String = "",
)
data class OfflineWhisperModelConfig(
var encoder: String = "",
var decoder: String = "",
@@ -30,6 +34,7 @@ data class OfflineModelConfig(
var transducer: OfflineTransducerModelConfig = OfflineTransducerModelConfig(),
var paraformer: OfflineParaformerModelConfig = OfflineParaformerModelConfig(),
var whisper: OfflineWhisperModelConfig = OfflineWhisperModelConfig(),
var nemo: OfflineNemoEncDecCtcModelConfig = OfflineNemoEncDecCtcModelConfig(),
var numThreads: Int = 1,
var debug: Boolean = false,
var provider: String = "cpu",
@@ -216,6 +221,16 @@ fun getOfflineModelConfig(type: Int): OfflineModelConfig? {
)
}
6 -> {
val modelDir = "sherpa-onnx-nemo-ctc-en-citrinet-512"
return OfflineModelConfig(
nemo = OfflineNemoEncDecCtcModelConfig(
model = "$modelDir/model.int8.onnx",
),
tokens = "$modelDir/tokens.txt",
)
}
}
return null
}

6
sherpa-onnx/kotlin-api/OnlineRecognizer.kt
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@@ -45,11 +45,17 @@ data class OnlineLMConfig(
var scale: Float = 0.5f,
)
data class OnlineCtcFstDecoderConfig(
var graph: String = "",
var maxActive: Int = 3000,
)
data class OnlineRecognizerConfig(
var featConfig: FeatureConfig = FeatureConfig(),
var modelConfig: OnlineModelConfig,
var lmConfig: OnlineLMConfig = OnlineLMConfig(),
var ctcFstDecoderConfig : OnlineCtcFstDecoderConfig = OnlineCtcFstDecoderConfig(),
var endpointConfig: EndpointConfig = EndpointConfig(),
var enableEndpoint: Boolean = true,
var decodingMethod: String = "greedy_search",