尝试构建静态库

 include(cargs)
 
 include_directories(${PROJECT_SOURCE_DIR})
+
+
+add_executable(vad-sense-voice-lib vad-sense-voice-lib.c)
+target_link_libraries(vad-sense-voice-lib sherpa-onnx-c-api)
+set_target_properties(vad-sense-voice-lib PROPERTIES LINK_FLAGS "-static")
+
 add_executable(decode-file-c-api decode-file-c-api.c)
 target_link_libraries(decode-file-c-api sherpa-onnx-c-api cargs)
 

+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <wchar.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "sherpa-onnx/c-api/c-api.h"
+#include "vad-sense-voice-lib.h"
+// Structure to hold transcription results
+typedef struct {
+    float start_time; // Start time in seconds
+    float end_time;   // End time in seconds
+    char* text;       // Transcription text
+} TranscriptionResult;
+
+// Structure to store previous segment information
+typedef struct {
+    float* samples;
+    int32_t n;
+    int32_t start;
+    char* text;
+} PreviousSegment;
+
+// Function to normalize string: remove punctuation and spaces, convert to lowercase
+void normalize_string(const char* input, char* output) {
+    int i = 0, j = 0;
+    while (input[i] != '\0') {
+        if (!ispunct((unsigned char)input[i]) && 
+            !isspace((unsigned char)input[i]) &&
+            !(input[i] >= 0x3000 && input[i] <= 0x303F) &&
+            !(input[i] >= 0xFF00 && input[i] <= 0xFF0F) &&
+            !(input[i] >= 0xFF1A && input[i] <= 0xFF20) &&
+            !(input[i] >= 0xFF3B && input[i] <= 0xFF40) &&
+            !(input[i] >= 0xFF5B && input[i] <= 0xFF65)) {
+            output[j++] = tolower((unsigned char)input[i]);
+        }
+        i++;
+    }
+    output[j] = '\0';
+}
+
+// Function to get the first meaningful character
+char get_first_meaningful_char(const char* str) {
+    int i = 0;
+    while (str[i] != '\0') {
+        if (!ispunct((unsigned char)str[i]) && 
+            !isspace((unsigned char)str[i]) &&
+            !(str[i] >= 0x3000 && str[i] <= 0x303F) &&
+            !(str[i] >= 0xFF00 && str[i] <= 0xFF0F) &&
+            !(str[i] >= 0xFF1A && str[i] <= 0xFF20) &&
+            !(str[i] >= 0xFF3B && str[i] <= 0xFF40) &&
+            !(str[i] >= 0xFF5B && str[i] <= 0xFF65)) {
+            return tolower((unsigned char)str[i]);
+        }
+        i++;
+    }
+    return '\0';
+}
+
+// Function to check if two strings are effectively the same
+int are_strings_effectively_same(const char* str1, const char* str2) {
+    char norm1[1024], norm2[1024];
+    normalize_string(str1, norm1);
+    normalize_string(str2, norm2);
+    return strcmp(norm1, norm2) == 0;
+}
+
+// Check if a character is a CJK ideograph
+static bool is_cjk_ideograph(uint32_t ch) {
+    return (ch >= 0x4E00 && ch <= 0x9FFF) ||
+           (ch >= 0x3400 && ch <= 0x4DBF) ||
+           (ch >= 0x20000 && ch <= 0x2A6DF) ||
+           (ch >= 0x2A700 && ch <= 0x2B73F) ||
+           (ch >= 0x2B740 && ch <= 0x2B81F) ||
+           (ch >= 0x2B820 && ch <= 0x2CEAF) ||
+           (ch >= 0x2CEB0 && ch <= 0x2EBEF) ||
+           (ch >= 0x3007 && ch <= 0x3007) ||
+           (ch >= 0x3021 && ch <= 0x3029) ||
+           (ch >= 0x3038 && ch <= 0x303B);
+}
+
+// Decode a UTF-8 character backwards
+static int prev_utf8_char(const char *s, int pos, uint32_t *out_ch) {
+    int start = pos;
+    while (start > 0 && (s[start] & 0xC0) == 0x80)
+        --start;
+    const unsigned char *p = (const unsigned char *)&s[start];
+    if ((*p & 0x80) == 0) {
+        *out_ch = *p;
+    } else if ((*p & 0xE0) == 0xC0) {
+        *out_ch = ((p[0] & 0x1F) << 6) | (p[1] & 0x3F);
+    } else if ((*p & 0xF0) == 0xE0) {
+        *out_ch = ((p[0] & 0x0F) << 12) | ((p[1] & 0x3F) << 6) | (p[2] & 0x3F);
+    } else if ((*p & 0xF8) == 0xF0) {
+        *out_ch = ((p[0] & 0x07) << 18) | ((p[1] & 0x3F) << 12) |
+                  ((p[2] & 0x3F) << 6) | (p[3] & 0x3F);
+    } else {
+        *out_ch = 0xFFFD;
+    }
+    return pos - start + 1;
+}
+
+// Get the last n words (CJK single characters or English words)
+void get_last_n_words(const char *str, int n, char *output) {
+    if (!str || !output || n <= 0) {
+        *output = '\0';
+        return;
+    }
+    int len = strlen(str);
+    if (len == 0) {
+        *output = '\0';
+        return;
+    }
+    char units[256][256];
+    int unit_cnt = 0;
+    int pos = len;
+    while (pos > 0 && unit_cnt < n) {
+        uint32_t ch;
+        int char_len = prev_utf8_char(str, pos - 1, &ch);
+        pos -= char_len;
+        if (ch < 128 && ((ch | 32) - 'a' < 26)) {
+            int word_end = pos + char_len;
+            int word_start = pos;
+            while (word_start > 0) {
+                uint32_t tmp;
+                int tmp_len = prev_utf8_char(str, word_start - 1, &tmp);
+                if (tmp < 128 && ((tmp | 32) - 'a' < 26))
+                    word_start -= tmp_len;
+                else
+                    break;
+            }
+            int wlen = word_end - word_start;
+            if (wlen >= (int)sizeof(units[unit_cnt])) wlen = sizeof(units[unit_cnt]) - 1;
+            memcpy(units[unit_cnt], str + word_start, wlen);
+            units[unit_cnt][wlen] = '\0';
+            ++unit_cnt;
+            pos = word_start;
+        } else if (is_cjk_ideograph(ch) || ch > 0xFF00) {
+            if (char_len >= (int)sizeof(units[unit_cnt])) char_len = sizeof(units[unit_cnt]) - 1;
+            memcpy(units[unit_cnt], str + pos, char_len);
+            units[unit_cnt][char_len] = '\0';
+            ++unit_cnt;
+        }
+    }
+    output[0] = '\0';
+    for (int i = unit_cnt - 1; i >= 0; --i) {
+        if (i < unit_cnt - 1) strcat(output, " ");
+        strcat(output, units[i]);
+    }
+}
+
+// Find the end position of the anchor text
+const char *find_anchor_end_position(const char *str, const char *anchor) {
+    if (!anchor || !*anchor) return str;
+    char normalized_str[1024] = {0};
+    char normalized_anchor[1024] = {0};
+    normalize_string(str, normalized_str);
+    normalize_string(anchor, normalized_anchor);
+    char *found = strstr(normalized_str, normalized_anchor);
+    if (!found) return str;
+    int anchor_end_offset = found - normalized_str + strlen(normalized_anchor);
+    int normalized_count = 0;
+    const char *ptr = str;
+    while (*ptr != '\0' && normalized_count < anchor_end_offset) {
+        if (!ispunct((unsigned char)*ptr) && !isspace((unsigned char)*ptr)) {
+            normalized_count++;
+        }
+        ptr++;
+    }
+    return ptr;
+}
+
+// Find the start of the next word
+const char *find_next_word_start(const char *str) {
+    while (*str != '\0' && 
+           (ispunct((unsigned char)*str) || isspace((unsigned char)*str))) {
+        str++;
+    }
+    return str;
+}
+
+// Get the difference after the anchor text
+char *get_difference_after_anchor(const char *str1, const char *str2, int num_anchor_words) {
+    if (are_strings_effectively_same(str1, str2)) {
+        return strdup("");
+    }
+    char semantic_anchor[256] = {0};
+    get_last_n_words(str1, num_anchor_words, semantic_anchor);
+    if (strlen(semantic_anchor) == 0) {
+        return strdup(str2);
+    }
+    char normalized_anchor[256] = {0};
+    normalize_string(semantic_anchor, normalized_anchor);
+    const char *anchor_end = find_anchor_end_position(str2, normalized_anchor);
+    const char *next_word_start = find_next_word_start(anchor_end);
+    return strdup(next_word_start);
+}
+
+// Free a previous segment
+void free_previous_segment(PreviousSegment* seg) {
+    if (seg) {
+        if (seg->samples) free(seg->samples);
+        if (seg->text) free(seg->text);
+        free(seg);
+    }
+}
+
+// Copy a speech segment
+PreviousSegment* copy_segment(const SherpaOnnxSpeechSegment* segment, const char* text) {
+    PreviousSegment* prev = (PreviousSegment*)malloc(sizeof(PreviousSegment));
+    if (!prev) return NULL;
+    prev->n = segment->n;
+    prev->start = segment->start;
+    prev->samples = (float*)malloc(segment->n * sizeof(float));
+    if (!prev->samples) {
+        free(prev);
+        return NULL;
+    }
+    memcpy(prev->samples, segment->samples, segment->n * sizeof(float));
+    prev->text = strdup(text);
+    if (!prev->text) {
+        free(prev->samples);
+        free(prev);
+        return NULL;
+    }
+    return prev;
+}
+
+// Free transcription results
+void free_transcription_results(TranscriptionResult* results, int32_t count) {
+    if (results) {
+        for (int32_t i = 0; i < count; i++) {
+            if (results[i].text) free(results[i].text);
+        }
+        free(results);
+    }
+}
+
+// Main library function
+TranscriptionResult* process_audio_file(const char* wav_filename, const char* vad_model_path, 
+                                      const char* sense_voice_model_path, const char* tokens_path,
+                                      int32_t* result_count) {
+    setlocale(LC_ALL, "");
+    *result_count = 0;
+
+    // Validate input files
+    if (!SherpaOnnxFileExists(wav_filename)) {
+        fprintf(stderr, "Audio file %s does not exist\n", wav_filename);
+        return NULL;
+    }
+    if (!SherpaOnnxFileExists(vad_model_path)) {
+        fprintf(stderr, "VAD model %s does not exist\n", vad_model_path);
+        return NULL;
+    }
+    if (!SherpaOnnxFileExists(sense_voice_model_path)) {
+        fprintf(stderr, "SenseVoice model %s does not exist\n", sense_voice_model_path);
+        return NULL;
+    }
+    if (!SherpaOnnxFileExists(tokens_path)) {
+        fprintf(stderr, "Tokens file %s does not exist\n", tokens_path);
+        return NULL;
+    }
+
+    // Read WAV file
+    const SherpaOnnxWave *wave = SherpaOnnxReadWave(wav_filename);
+    if (wave == NULL) {
+        fprintf(stderr, "Failed to read %s\n", wav_filename);
+        return NULL;
+    }
+    if (wave->sample_rate != 16000) {
+        fprintf(stderr, "Expect sample rate 16000, got %d\n", wave->sample_rate);
+        SherpaOnnxFreeWave(wave);
+        return NULL;
+    }
+
+    // Initialize SenseVoice model config
+    SherpaOnnxOfflineSenseVoiceModelConfig sense_voice_config;
+    memset(&sense_voice_config, 0, sizeof(sense_voice_config));
+    sense_voice_config.model = sense_voice_model_path;
+    sense_voice_config.language = "auto";
+    sense_voice_config.use_itn = 1;
+
+    // Initialize offline model config
+    SherpaOnnxOfflineModelConfig offline_model_config;
+    memset(&offline_model_config, 0, sizeof(offline_model_config));
+    offline_model_config.debug = 0;
+    offline_model_config.num_threads = 1;
+    offline_model_config.provider = "cpu";
+    offline_model_config.tokens = tokens_path;
+    offline_model_config.sense_voice = sense_voice_config;
+
+    // Initialize 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;
+
+    // Create recognizer
+    const SherpaOnnxOfflineRecognizer *recognizer =
+        SherpaOnnxCreateOfflineRecognizer(&recognizer_config);
+    if (recognizer == NULL) {
+        fprintf(stderr, "Failed to create recognizer\n");
+        SherpaOnnxFreeWave(wave);
+        return NULL;
+    }
+
+    // Initialize VAD config
+    SherpaOnnxVadModelConfig vadConfig;
+    memset(&vadConfig, 0, sizeof(vadConfig));
+    int32_t use_silero_vad = strstr(vad_model_path, "silero_vad.onnx") != NULL;
+    int32_t use_ten_vad = strstr(vad_model_path, "ten-vad.onnx") != NULL;
+
+    if (use_silero_vad) {
+        vadConfig.silero_vad.model = vad_model_path;
+        vadConfig.silero_vad.threshold = 0.25;
+        vadConfig.silero_vad.min_silence_duration = 1.5;
+        vadConfig.silero_vad.min_speech_duration = 0.3;
+        vadConfig.silero_vad.max_speech_duration = 20;
+        vadConfig.silero_vad.window_size = 512;
+    } else if (use_ten_vad) {
+        vadConfig.ten_vad.model = vad_model_path;
+        vadConfig.ten_vad.threshold = 0.25;
+        vadConfig.ten_vad.min_silence_duration = 0.5;
+        vadConfig.ten_vad.min_speech_duration = 0.5;
+        vadConfig.ten_vad.max_speech_duration = 10;
+        vadConfig.ten_vad.window_size = 256;
+    } else {
+        fprintf(stderr, "Unsupported VAD model: %s\n", vad_model_path);
+        SherpaOnnxDestroyOfflineRecognizer(recognizer);
+        SherpaOnnxFreeWave(wave);
+        return NULL;
+    }
+    vadConfig.sample_rate = 16000;
+    vadConfig.num_threads = 1;
+    vadConfig.debug = 1;
+
+    // Create VAD
+    const SherpaOnnxVoiceActivityDetector *vad =
+        SherpaOnnxCreateVoiceActivityDetector(&vadConfig, 30);
+    if (vad == NULL) {
+        fprintf(stderr, "Failed to create VAD\n");
+        SherpaOnnxDestroyOfflineRecognizer(recognizer);
+        SherpaOnnxFreeWave(wave);
+        return NULL;
+    }
+
+    // Initialize result array
+    TranscriptionResult* results = NULL;
+    int32_t results_capacity = 0;
+    int32_t results_count = 0;
+
+    int32_t window_size = use_silero_vad ? vadConfig.silero_vad.window_size
+                                        : vadConfig.ten_vad.window_size;
+    int32_t i = 0;
+    int is_eof = 0;
+    PreviousSegment *prev_segment = NULL;
+
+    // Process audio
+    while (!is_eof) {
+        if (i + window_size < wave->num_samples) {
+            SherpaOnnxVoiceActivityDetectorAcceptWaveform(vad, wave->samples + i, window_size);
+        } else {
+            SherpaOnnxVoiceActivityDetectorFlush(vad);
+            is_eof = 1;
+        }
+
+        while (!SherpaOnnxVoiceActivityDetectorEmpty(vad)) {
+            const SherpaOnnxSpeechSegment *segment =
+                SherpaOnnxVoiceActivityDetectorFront(vad);
+            float duration = segment->n / 16000.0f;
+
+            // Create stream for current segment
+            const SherpaOnnxOfflineStream *stream =
+                SherpaOnnxCreateOfflineStream(recognizer);
+            SherpaOnnxAcceptWaveformOffline(stream, wave->sample_rate,
+                                          segment->samples, segment->n);
+            SherpaOnnxDecodeOfflineStream(recognizer, stream);
+            const SherpaOnnxOfflineRecognizerResult *result =
+                SherpaOnnxGetOfflineStreamResult(stream);
+
+            float start = segment->start / 16000.0f;
+            float stop = start + duration;
+
+            // Resize results array if necessary
+            if (results_count >= results_capacity) {
+                results_capacity = results_capacity ? results_capacity * 2 : 10;
+                TranscriptionResult* new_results = (TranscriptionResult*)realloc(
+                    results, results_capacity * sizeof(TranscriptionResult));
+                if (!new_results) {
+                    free_transcription_results(results, results_count);
+                    free_previous_segment(prev_segment);
+                    SherpaOnnxDestroyOfflineRecognizerResult(result);
+                    SherpaOnnxDestroyOfflineStream(stream);
+                    SherpaOnnxDestroySpeechSegment(segment);
+                    SherpaOnnxVoiceActivityDetectorPop(vad);
+                    SherpaOnnxDestroyOfflineRecognizer(recognizer);
+                    SherpaOnnxDestroyVoiceActivityDetector(vad);
+                    SherpaOnnxFreeWave(wave);
+                    return NULL;
+                }
+                results = new_results;
+            }
+
+            if (duration < 1.5f && prev_segment != NULL) {
+                // Merge with previous segment
+                int32_t merged_n = prev_segment->n + segment->n;
+                float *merged_samples = (float*)malloc(merged_n * sizeof(float));
+                memcpy(merged_samples, prev_segment->samples, prev_segment->n * sizeof(float));
+                memcpy(merged_samples + prev_segment->n, segment->samples, segment->n * sizeof(float));
+
+                const SherpaOnnxOfflineStream *merged_stream =
+                    SherpaOnnxCreateOfflineStream(recognizer);
+                SherpaOnnxAcceptWaveformOffline(merged_stream, wave->sample_rate,
+                                              merged_samples, merged_n);
+                SherpaOnnxDecodeOfflineStream(recognizer, merged_stream);
+                const SherpaOnnxOfflineRecognizerResult *merged_result =
+                    SherpaOnnxGetOfflineStreamResult(merged_stream);
+
+                char *diff_text = get_difference_after_anchor(prev_segment->text, merged_result->text, 3);
+                results[results_count].start_time = start;
+                results[results_count].end_time = stop;
+                results[results_count].text = strdup(strlen(diff_text) == 0 ? "Umm" : diff_text);
+
+                SherpaOnnxDestroyOfflineRecognizerResult(merged_result);
+                SherpaOnnxDestroyOfflineStream(merged_stream);
+                free(merged_samples);
+                free(diff_text);
+            } else {
+                // Normal segment
+                results[results_count].start_time = start;
+                results[results_count].end_time = stop;
+                results[results_count].text = strdup(result->text);
+            }
+
+            if (!results[results_count].text) {
+                free_transcription_results(results, results_count);
+                free_previous_segment(prev_segment);
+                SherpaOnnxDestroyOfflineRecognizerResult(result);
+                SherpaOnnxDestroyOfflineStream(stream);
+                SherpaOnnxDestroySpeechSegment(segment);
+                SherpaOnnxVoiceActivityDetectorPop(vad);
+                SherpaOnnxDestroyOfflineRecognizer(recognizer);
+                SherpaOnnxDestroyVoiceActivityDetector(vad);
+                SherpaOnnxFreeWave(wave);
+                return NULL;
+            }
+
+            results_count++;
+
+            // Update previous segment if duration >= 1.5 seconds
+            if (duration >= 1.5f) {
+                if (prev_segment) free_previous_segment(prev_segment);
+                prev_segment = copy_segment(segment, result->text);
+            } else {
+                if (prev_segment) {
+                    free_previous_segment(prev_segment);
+                    prev_segment = NULL;
+                }
+            }
+
+            SherpaOnnxDestroyOfflineRecognizerResult(result);
+            SherpaOnnxDestroyOfflineStream(stream);
+            SherpaOnnxDestroySpeechSegment(segment);
+            SherpaOnnxVoiceActivityDetectorPop(vad);
+        }
+        i += window_size;
+    }
+
+    // Clean up
+    if (prev_segment) free_previous_segment(prev_segment);
+    SherpaOnnxDestroyOfflineRecognizer(recognizer);
+    SherpaOnnxDestroyVoiceActivityDetector(vad);
+    SherpaOnnxFreeWave(wave);
+
+    *result_count = results_count;
+    return results;
+}
\ No newline at end of file