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C API examples for zipformer, paraformer, and TeleSpeech-ASR CTC models.
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| // c-api-examples/paraformer-c-api.c | ||
| // | ||
| // Copyright (c) 2024 Xiaomi Corporation | ||
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| // | ||
| // This file demonstrates how to use non-streaming Paraformer with sherpa-onnx's C API. | ||
| // clang-format off | ||
| // | ||
| // wget https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-paraformer-zh-small-2024-03-09.tar.bz2 | ||
| // tar xvf sherpa-onnx-paraformer-zh-small-2024-03-09.tar.bz2 | ||
| // rm sherpa-onnx-paraformer-zh-small-2024-03-09.tar.bz2 | ||
| // | ||
| // clang-format on | ||
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| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
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| #include "sherpa-onnx/c-api/c-api.h" | ||
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| int32_t main() { | ||
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| const char *wav_filename = "sherpa-onnx-paraformer-zh-small-2024-03-09/test_wavs/0.wav"; | ||
| const char *model_filename = "sherpa-onnx-paraformer-zh-small-2024-03-09/model.int8.onnx"; | ||
| const char *tokens_filename = "sherpa-onnx-paraformer-zh-small-2024-03-09/tokens.txt"; | ||
| const char *provider = "cpu"; | ||
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| const SherpaOnnxWave *wave = SherpaOnnxReadWave(wav_filename); | ||
| if (wave == NULL) { | ||
| fprintf(stderr, "Failed to read %s\n", wav_filename); | ||
| return -1; | ||
| } | ||
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| // Paraformer config | ||
| SherpaOnnxOfflineParaformerModelConfig paraformer_config; | ||
| memset(¶former_config, 0, sizeof(paraformer_config)); | ||
| paraformer_config.model = model_filename; | ||
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| // Offline model config | ||
| SherpaOnnxOfflineModelConfig offline_model_config; | ||
| memset(&offline_model_config, 0, sizeof(offline_model_config)); | ||
| offline_model_config.debug = 1; | ||
| offline_model_config.num_threads = 1; | ||
| offline_model_config.provider = provider; | ||
| offline_model_config.tokens = tokens_filename; | ||
| offline_model_config.paraformer = paraformer_config; | ||
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| // Recognizer config | ||
| SherpaOnnxOfflineRecognizerConfig recognizer_config; | ||
| memset(&recognizer_config, 0, sizeof(recognizer_config)); | ||
| recognizer_config.decoding_method = "greedy_search"; | ||
| recognizer_config.model_config = offline_model_config; | ||
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| SherpaOnnxOfflineRecognizer *recognizer = | ||
| SherpaOnnxCreateOfflineRecognizer(&recognizer_config); | ||
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| if (recognizer == NULL) { | ||
| fprintf(stderr, "Please check your config!\n"); | ||
| SherpaOnnxFreeWave(wave); | ||
| return -1; | ||
| } | ||
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| SherpaOnnxOfflineStream *stream = SherpaOnnxCreateOfflineStream(recognizer); | ||
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| SherpaOnnxAcceptWaveformOffline(stream, wave->sample_rate, wave->samples, | ||
| wave->num_samples); | ||
| SherpaOnnxDecodeOfflineStream(recognizer, stream); | ||
| const SherpaOnnxOfflineRecognizerResult *result = | ||
| SherpaOnnxGetOfflineStreamResult(stream); | ||
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| fprintf(stderr, "Decoded text: %s\n", result->text); | ||
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| SherpaOnnxDestroyOfflineRecognizerResult(result); | ||
| SherpaOnnxDestroyOfflineStream(stream); | ||
| SherpaOnnxDestroyOfflineRecognizer(recognizer); | ||
| SherpaOnnxFreeWave(wave); | ||
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| return 0; | ||
| } |
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