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// c-api-examples/offline-stt-c-api.c | ||
// | ||
// Copyright (c) 2024 Xiaomi Corporation | ||
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// We assume you have pre-downloaded the whisper multi-lingual models | ||
// from https://github.com/k2-fsa/sherpa-onnx/releases/tag/asr-models | ||
// An example command to download the "tiny" whisper model is given below: | ||
// | ||
// clang-format off | ||
// | ||
// wget https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-whisper-tiny.tar.bz2 | ||
// tar xvf sherpa-onnx-whisper-tiny.tar.bz2 | ||
// rm sherpa-onnx-whisper-tiny.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() { | ||
// You can find more test waves from | ||
// https://hf-mirror.com/spaces/k2-fsa/spoken-language-identification/tree/main/test_wavs | ||
const char *wav_filename = "./sherpa-onnx-whisper-tiny/test_wavs/0.wav"; | ||
const char *encoder_filename = "sherpa-onnx-whisper-tiny/tiny-encoder.onnx"; | ||
const char *decoder_filename = "sherpa-onnx-whisper-tiny/tiny-decoder.onnx"; | ||
const char *tokens_filename = "sherpa-onnx-whisper-tiny/tiny-tokens.txt"; | ||
const char *language = "en"; | ||
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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// Whisper config | ||
SherpaOnnxOfflineWhisperModelConfig whisper_config; | ||
memset(&whisper_config, 0, sizeof(whisper_config)); | ||
whisper_config.decoder = decoder_filename; | ||
whisper_config.encoder = encoder_filename; | ||
whisper_config.language = language; | ||
whisper_config.tail_paddings = 0; | ||
whisper_config.task = "transcribe"; | ||
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// Offline model config | ||
SherpaOnnxOfflineModelConfig offline_model_config; | ||
memset(&offline_model_config, 0, sizeof(offline_model_config)); | ||
offline_model_config.bpe_vocab = ""; | ||
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.whisper = whisper_config; | ||
offline_model_config.sense_voice = | ||
(SherpaOnnxOfflineSenseVoiceModelConfig){"", "", 0}; | ||
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// Recognizer config | ||
SherpaOnnxOfflineRecognizerConfig recognizer_config; | ||
memset(&recognizer_config, 0, sizeof(recognizer_config)); | ||
recognizer_config.decoding_method = "greedy_search"; | ||
recognizer_config.feat_config = (SherpaOnnxFeatureConfig){16000, 512}; | ||
recognizer_config.model_config = offline_model_config; | ||
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SherpaOnnxOfflineRecognizer *recognizer = | ||
CreateOfflineRecognizer(&recognizer_config); | ||
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SherpaOnnxOfflineStream *stream = CreateOfflineStream(recognizer); | ||
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AcceptWaveformOffline(stream, wave->sample_rate, wave->samples, | ||
wave->num_samples); | ||
DecodeOfflineStream(recognizer, stream); | ||
SherpaOnnxOfflineRecognizerResult *result = GetOfflineStreamResult(stream); | ||
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fprintf(stderr, "Decoded text: %s\n", result->text); | ||
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DestroyOfflineRecognizerResult(result); | ||
DestroyOfflineStream(stream); | ||
DestroyOfflineRecognizer(recognizer); | ||
SherpaOnnxFreeWave(wave); | ||
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return 0; | ||
} |