C++ API for speaker diarization

.github/scripts/test-speaker-diarization.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+set -ex
+
+log() {
+  # This function is from espnet
+  local fname=${BASH_SOURCE[1]##*/}
+  echo -e "$(date '+%Y-%m-%d %H:%M:%S') (${fname}:${BASH_LINENO[0]}:${FUNCNAME[1]}) $*"
+}
+
+echo "EXE is $EXE"
+echo "PATH: $PATH"
+
+which $EXE
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-segmentation-models/sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+tar xvf sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+rm sherpa-onnx-pyannote-segmentation-3-0.tar.bz2
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-recongition-models/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx
+
+curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/speaker-segmentation-models/0-four-speakers-zh.wav
+
+log "specify number of clusters"
+$EXE \
+  --clustering.num-clusters=4 \
+  --segmentation.pyannote-model=./sherpa-onnx-pyannote-segmentation-3-0/model.onnx \
+  --embedding.model=./3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx \
+  ./0-four-speakers-zh.wav
+
+log "specify threshold for clustering"
+
+$EXE \
+  --clustering.cluster-threshold=0.90 \
+  --segmentation.pyannote-model=./sherpa-onnx-pyannote-segmentation-3-0/model.onnx \
+  --embedding.model=./3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx \
+  ./0-four-speakers-zh.wav
+
+rm -rf sherpa-onnx-pyannote-*
+rm -fv *.onnx
+rm -fv *.wav

.github/workflows/export-pyannote-segmentation-to-onnx.yaml

@@ -29,7 +29,7 @@ jobs:
       - name: Install pyannote
         shell: bash
         run: |
-          pip install pyannote.audio onnx onnxruntime
+          pip install pyannote.audio onnx==1.15.0 onnxruntime==1.16.3
 
       - name: Run
         shell: bash

.github/workflows/linux.yaml

@@ -18,6 +18,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -38,6 +39,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -143,6 +145,15 @@ jobs:
           name: release-${{ matrix.build_type }}-with-shared-lib-${{ matrix.shared_lib }}-with-tts-${{ matrix.with_tts }}
           path: install/*
 
+      - name: Test offline speaker diarization
+        shell: bash
+        run: |
+          du -h -d1 .
+          export PATH=$PWD/build/bin:$PATH
+          export EXE=sherpa-onnx-offline-speaker-diarization
+
+          .github/scripts/test-speaker-diarization.sh
+
       - name: Test offline transducer
         shell: bash
         run: |

.github/workflows/macos.yaml

@@ -18,6 +18,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -37,6 +38,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -115,6 +117,15 @@ jobs:
           otool -L build/bin/sherpa-onnx
           otool -l build/bin/sherpa-onnx
 
+      - name: Test offline speaker diarization
+        shell: bash
+        run: |
+          du -h -d1 .
+          export PATH=$PWD/build/bin:$PATH
+          export EXE=sherpa-onnx-offline-speaker-diarization
+
+          .github/scripts/test-speaker-diarization.sh
+
       - name: Test offline transducer
         shell: bash
         run: |

.github/workflows/speaker-diarization.yaml

@@ -67,7 +67,7 @@ jobs:
           curl -SL -O https://huggingface.co/csukuangfj/pyannote-models/resolve/main/segmentation-3.0/pytorch_model.bin
 
           test_wavs=(
-            0-two-speakers-zh.wav
+            0-four-speakers-zh.wav
             1-two-speakers-en.wav
             2-two-speakers-en.wav
             3-two-speakers-en.wav

.github/workflows/windows-x64.yaml

@@ -17,6 +17,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -34,6 +35,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -87,6 +89,15 @@ jobs:
           name: release-windows-x64-${{ matrix.shared_lib }}-${{ matrix.with_tts }}
           path: build/install/*
 
+      - name: Test offline speaker diarization
+        shell: bash
+        run: |
+          du -h -d1 .
+          export PATH=$PWD/build/bin:$PATH
+          export EXE=sherpa-onnx-offline-speaker-diarization.exe
+
+          .github/scripts/test-speaker-diarization.sh
+
       - name: Test online punctuation
         shell: bash
         run: |

.github/workflows/windows-x86.yaml

@@ -17,6 +17,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -34,6 +35,7 @@ on:
       - '.github/scripts/test-audio-tagging.sh'
       - '.github/scripts/test-offline-punctuation.sh'
       - '.github/scripts/test-online-punctuation.sh'
+      - '.github/scripts/test-speaker-diarization.sh'
       - 'CMakeLists.txt'
       - 'cmake/**'
       - 'sherpa-onnx/csrc/*'
@@ -87,6 +89,15 @@ jobs:
           name: release-windows-x86-${{ matrix.shared_lib }}-${{ matrix.with_tts }}
           path: build/install/*
 
+      - name: Test offline speaker diarization
+        shell: bash
+        run: |
+          du -h -d1 .
+          export PATH=$PWD/build/bin:$PATH
+          export EXE=sherpa-onnx-offline-speaker-diarization.exe
+
+          .github/scripts/test-speaker-diarization.sh
+
       - name: Test online punctuation
         shell: bash
         run: |

c-api-examples/keywords-spotter-buffered-tokens-keywords-c-api.c

@@ -36,7 +36,7 @@ static size_t ReadFile(const char *filename, const char **buffer_out) {
     fprintf(stderr, "Memory error\n");
     return -1;
   }
-  size_t read_bytes = fread(*buffer_out, 1, size, file);
+  size_t read_bytes = fread((void *)*buffer_out, 1, size, file);
   if (read_bytes != size) {
     printf("Errors occured in reading the file %s\n", filename);
     free((void *)*buffer_out);

c-api-examples/streaming-ctc-buffered-tokens-c-api.c

@@ -36,7 +36,7 @@ static size_t ReadFile(const char *filename, const char **buffer_out) {
     fprintf(stderr, "Memory error\n");
     return -1;
   }
-  size_t read_bytes = fread(*buffer_out, 1, size, file);
+  size_t read_bytes = fread((void *)*buffer_out, 1, size, file);
   if (read_bytes != size) {
     printf("Errors occured in reading the file %s\n", filename);
     free((void *)*buffer_out);

c-api-examples/streaming-paraformer-buffered-tokens-c-api.c

@@ -36,7 +36,7 @@ static size_t ReadFile(const char *filename, const char **buffer_out) {
     fprintf(stderr, "Memory error\n");
     return -1;
   }
-  size_t read_bytes = fread(*buffer_out, 1, size, file);
+  size_t read_bytes = fread((void *)*buffer_out, 1, size, file);
   if (read_bytes != size) {
     printf("Errors occured in reading the file %s\n", filename);
     free((void *)*buffer_out);

c-api-examples/streaming-zipformer-buffered-tokens-hotwords-c-api.c

@@ -36,7 +36,7 @@ static size_t ReadFile(const char *filename, const char **buffer_out) {
     fprintf(stderr, "Memory error\n");
     return -1;
   }
-  size_t read_bytes = fread(*buffer_out, 1, size, file);
+  size_t read_bytes = fread((void *)*buffer_out, 1, size, file);
   if (read_bytes != size) {
     printf("Errors occured in reading the file %s\n", filename);
     free((void *)*buffer_out);

cmake/cmake_extension.py

@@ -55,6 +55,7 @@ def get_binaries():
         "sherpa-onnx-offline-audio-tagging",
         "sherpa-onnx-offline-language-identification",
         "sherpa-onnx-offline-punctuation",
+        "sherpa-onnx-offline-speaker-diarization",
         "sherpa-onnx-offline-tts",
         "sherpa-onnx-offline-tts-play",
         "sherpa-onnx-offline-websocket-server",

scripts/pyannote/segmentation/README.md

@@ -3,12 +3,9 @@
 Please download test wave files from
 https://github.com/k2-fsa/sherpa-onnx/releases/tag/speaker-segmentation-models
 
-## 0-two-speakers-zh.wav
+## 0-four-speakers-zh.wav
 
-This file is from
-https://www.modelscope.cn/models/iic/speech_campplus_speaker-diarization_common/file/view/master?fileName=examples%252F2speakers_example.wav&status=0
-
-Note that we have renamed it from `2speakers_example.wav` to `0-two-speakers-zh.wav`.
+It is recorded by @csukuangfj
 
 ## 1-two-speakers-en.wav
 
@@ -40,5 +37,5 @@ commands to convert it to `3-two-speakers-en.wav`
 
 
 ```bash
-sox ML16091-Audio.mp3 3-two-speakers-en.wav
+sox ML16091-Audio.mp3 -r 16k 3-two-speakers-en.wav
 ```

scripts/pyannote/segmentation/export-onnx.py

@@ -72,7 +72,7 @@ def main():
         model.receptive_field.duration * 16000
     )
 
-    opset_version = 18
+    opset_version = 13
 
     filename = "model.onnx"
     torch.onnx.export(

sherpa-onnx/csrc/CMakeLists.txt

@@ -164,6 +164,12 @@ if(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION)
   list(APPEND sources
     fast-clustering-config.cc
     fast-clustering.cc
+    offline-speaker-diarization-impl.cc
+    offline-speaker-diarization-result.cc
+    offline-speaker-diarization.cc
+    offline-speaker-segmentation-model-config.cc
+    offline-speaker-segmentation-pyannote-model-config.cc
+    offline-speaker-segmentation-pyannote-model.cc
   )
 endif()
 
@@ -260,6 +266,10 @@ if(SHERPA_ONNX_ENABLE_BINARY)
     add_executable(sherpa-onnx-offline-tts sherpa-onnx-offline-tts.cc)
   endif()
 
+  if(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION)
+    add_executable(sherpa-onnx-offline-speaker-diarization sherpa-onnx-offline-speaker-diarization.cc)
+  endif()
+
   set(main_exes
     sherpa-onnx
     sherpa-onnx-keyword-spotter
@@ -276,6 +286,12 @@ if(SHERPA_ONNX_ENABLE_BINARY)
     )
   endif()
 
+  if(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION)
+    list(APPEND main_exes
+      sherpa-onnx-offline-speaker-diarization
+    )
+  endif()
+
   foreach(exe IN LISTS main_exes)
     target_link_libraries(${exe} sherpa-onnx-core)
   endforeach()

sherpa-onnx/csrc/fast-clustering-config.cc

@@ -21,18 +21,16 @@ std::string FastClusteringConfig::ToString() const {
 }
 
 void FastClusteringConfig::Register(ParseOptions *po) {
-  std::string prefix = "ctc";
-  ParseOptions p(prefix, po);
-
-  p.Register("num-clusters", &num_clusters,
-             "Number of cluster. If greater than 0, then --cluster-thresold is "
-             "ignored. Please provide it if you know the actual number of "
-             "clusters in advance.");
-
-  p.Register("cluster-threshold", &threshold,
-             "If --num-clusters is not specified, then it specifies the "
-             "distance threshold for clustering. smaller value -> more "
-             "clusters. larger value -> fewer clusters");
+  po->Register(
+      "num-clusters", &num_clusters,
+      "Number of cluster. If greater than 0, then cluster threshold is "
+      "ignored. Please provide it if you know the actual number of "
+      "clusters in advance.");
+
+  po->Register("cluster-threshold", &threshold,
+               "If num_clusters is not specified, then it specifies the "
+               "distance threshold for clustering. smaller value -> more "
+               "clusters. larger value -> fewer clusters");
 }
 
 bool FastClusteringConfig::Validate() const {

sherpa-onnx/csrc/macros.h

@@ -5,6 +5,7 @@
 #ifndef SHERPA_ONNX_CSRC_MACROS_H_
 #define SHERPA_ONNX_CSRC_MACROS_H_
 #include <stdio.h>
+#include <stdlib.h>
 
 #if __ANDROID_API__ >= 8
 #include "android/log.h"
@@ -169,4 +170,6 @@
     }                                                                   \
   } while (0)
 
+#define SHERPA_ONNX_EXIT(code) exit(code)
+
 #endif  // SHERPA_ONNX_CSRC_MACROS_H_

sherpa-onnx/csrc/offline-sense-voice-model.cc

@@ -9,6 +9,7 @@
 #include <utility>
 
 #include "sherpa-onnx/csrc/macros.h"
+#include "sherpa-onnx/csrc/onnx-utils.h"
 #include "sherpa-onnx/csrc/session.h"
 #include "sherpa-onnx/csrc/text-utils.h"
 

sherpa-onnx/csrc/offline-speaker-diarization-impl.cc

@@ -0,0 +1,26 @@
+// sherpa-onnx/csrc/offline-speaker-diarization-impl.cc
+//
+// Copyright (c)  2024  Xiaomi Corporation
+
+#include "sherpa-onnx/csrc/offline-speaker-diarization-impl.h"
+
+#include <memory>
+
+#include "sherpa-onnx/csrc/macros.h"
+#include "sherpa-onnx/csrc/offline-speaker-diarization-pyannote-impl.h"
+
+namespace sherpa_onnx {
+
+std::unique_ptr<OfflineSpeakerDiarizationImpl>
+OfflineSpeakerDiarizationImpl::Create(
+    const OfflineSpeakerDiarizationConfig &config) {
+  if (!config.segmentation.pyannote.model.empty()) {
+    return std::make_unique<OfflineSpeakerDiarizationPyannoteImpl>(config);
+  }
+
+  SHERPA_ONNX_LOGE("Please specify a speaker segmentation model.");
+
+  return nullptr;
+}
+
+}  // namespace sherpa_onnx