diff --git a/doubao_mic.cpp b/doubao_mic.cpp index 4fe00645f..d07d114f4 100644 --- a/doubao_mic.cpp +++ b/doubao_mic.cpp @@ -19,9 +19,7 @@ #include #include -// ============================================= // 全局状态管理 -// ============================================= std::atomic is_recording(false); std::atomic exit_program(false); std::atomic recorded_seconds(0); @@ -31,12 +29,9 @@ std::vector audio_buffer; std::mutex buffer_mutex; // 配置常量 -int RECORD_TIMEOUT = 30; // 可变，支持动态测试 - -// ============================================= -// 系统工具函数 -// ============================================= +int RECORD_TIMEOUT = 30; +// 信号处理 void signal_handler(int sig) { if (sig == SIGINT) { printf("\n\n🛑 收到退出信号，正在清理资源...\n"); @@ -47,7 +42,7 @@ void signal_handler(int sig) { } } -// 非阻塞检查标准输入（带毫秒超时） +// 非阻塞检查标准输入 bool check_input_non_blocking(int timeout_ms = 20) { fd_set fds; FD_ZERO(&fds); @@ -69,11 +64,8 @@ void clear_input_buffer() { } } -// ============================================= -// 音频回调 (硬件驱动层) -// ============================================= +// 音频采集回调 void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uint32 frameCount) { - // 只要 is_recording 为 true，回调就会持续把数据写入 buffer if (!is_recording.load() || pInput == NULL) return; const float* pInputFloat = (const float*)pInput; std::lock_guard lock(buffer_mutex); @@ -81,17 +73,13 @@ void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uin recorded_seconds.store(static_cast(audio_buffer.size() / 16000.0)); } -// ============================================= // 识别逻辑 -// ============================================= void recognize_audio(struct whisper_context* ctx, const std::vector& audio_data) { if (audio_data.empty()) return; float total_sec = (float)audio_data.size() / 16000.0f; - - printf("\n🔍 正在识别（总采样长度：%.2fs）...\n", total_sec); + printf("\n🔍 正在识别（采样长度：%.2fs）...\n", total_sec); auto t_start = std::chrono::steady_clock::now(); - whisper_full_params wparams = whisper_full_default_params(WHISPER_SAMPLING_GREEDY); wparams.language = "zh"; wparams.n_threads = std::max(2, (int)std::thread::hardware_concurrency()); @@ -104,8 +92,7 @@ void recognize_audio(struct whisper_context* ctx, const std::vector& audi auto t_end = std::chrono::steady_clock::now(); float msec = std::chrono::duration(t_end - t_start).count(); - - printf("⏱️ 推理耗时：%.2f 秒 | 速度：%.2fx 实时\n", msec/1000.0f, total_sec/(msec/1000.0f)); + printf("⏱️ 推理耗时：%.2f 秒 | 速度：%.2fx\n", msec/1000.0f, total_sec/(msec/1000.0f)); int n_segments = whisper_full_n_segments(ctx); printf("📝 结果：\n"); @@ -114,43 +101,54 @@ void recognize_audio(struct whisper_context* ctx, const std::vector& audi } } -// ============================================= -// 主程序 -// ============================================= int main(int argc, char** argv) { signal(SIGINT, signal_handler); if (argc < 2) { printf("Usage: %s [timeout_seconds]\n", argv[0]); return 1; } - if (argc >= 3) { - RECORD_TIMEOUT = atoi(argv[2]); - } + if (argc >= 3) RECORD_TIMEOUT = atoi(argv[2]); - // 1. Whisper 初始化 (强制 GPU 后端) + // 1. 初始化 Whisper struct whisper_context_params cparams = whisper_context_default_params(); cparams.use_gpu = true; struct whisper_context* ctx = whisper_init_from_file_with_params(argv[1], cparams); if (!ctx) return 1; - // 2. 音频设备初始化 (AB13X USB) + // 2. 【补回】设备选择逻辑 ma_context context; ma_context_init(NULL, 0, NULL, &context); + ma_device_info* pCaptureInfos = NULL; + ma_uint32 captureCount = 0; + ma_context_get_devices(&context, NULL, NULL, &pCaptureInfos, &captureCount); + + printf("\n📜 可用麦克风设备列表：\n"); + for (ma_uint32 i = 0; i < captureCount; ++i) { + printf(" [%u] %s\n", i, pCaptureInfos[i].name); + } + + ma_uint32 device_id = 0; + printf("\n👉 请输入要使用的麦克风 ID (默认0): "); + if (scanf("%u", &device_id) != 1) device_id = 0; + clear_input_buffer(); + + // 3. 配置并启动设备 ma_device_config devCfg = ma_device_config_init(ma_device_type_capture); devCfg.capture.format = ma_format_f32; devCfg.capture.channels = 1; devCfg.sampleRate = 16000; devCfg.dataCallback = data_callback; - + if (device_id < captureCount) devCfg.capture.pDeviceID = &pCaptureInfos[device_id].id; + ma_device device; if (ma_device_init(&context, &devCfg, &device) != MA_SUCCESS) return 1; ma_device_start(&device); while (!exit_program.load()) { printf("\n=============================================\n"); - printf("🎙️ 操作提示 (当前超时: %d秒):\n", RECORD_TIMEOUT); - printf(" ▶ [回车键] : 开始录制\n"); - printf(" ■ [回车键] : 停止录制 (会有1.5秒平滑收尾)\n"); + printf("🎙️ 操作提示 (超时设置: %d秒):\n", RECORD_TIMEOUT); + printf(" ▶ [回车] : 开始录制\n"); + printf(" ■ [回车] : 停止录制 (1.5s 平滑收尾)\n"); printf("=============================================\n"); printf("👉 等待指令..."); fflush(stdout); @@ -159,15 +157,13 @@ int main(int argc, char** argv) { if (exit_program.load()) break; clear_input_buffer(); - // 重置状态 { std::lock_guard lock(buffer_mutex); audio_buffer.clear(); } recorded_seconds.store(0); is_recording.store(true); auto start_time = std::chrono::steady_clock::now(); - printf("\n🎙️ 正在录制 (进度将在下方实时更新)... \n"); + printf("\n🎙️ 正在录制 (进度实时更新)... \n"); - // 进度显示线程 std::thread progress_thread([&]() { while (is_recording.load() && !exit_program.load()) { printf("\r📊 进度: %d 秒 ", recorded_seconds.load()); @@ -181,36 +177,28 @@ int main(int argc, char** argv) { auto now = std::chrono::steady_clock::now(); double elapsed_ms = std::chrono::duration(now - start_time).count(); - // 检查手动停止 if (check_input_non_blocking(10)) { char c; if (read(STDIN_FILENO, &c, 1) > 0 && c == '\n') { - printf("\n🛑 检测到手动回车，准备收尾..."); + printf("\n🛑 手动停止触发，准备平滑刷新..."); stop_triggered = true; } - } - // 检查超时停止 - else if (elapsed_ms >= (RECORD_TIMEOUT * 1000)) { - printf("\n⏱️ 达到 %d 秒阈值，准备收尾...", RECORD_TIMEOUT); + } else if (elapsed_ms >= (RECORD_TIMEOUT * 1000 + 200)) { + printf("\r📊 进度: %d 秒", RECORD_TIMEOUT); // 强制补全显示 + printf("\n⏱️ 达到设定阈值 (%d秒)，准备平滑刷新...", RECORD_TIMEOUT); stop_triggered = true; } - std::this_thread::sleep_for(std::chrono::milliseconds(5)); + std::this_thread::sleep_for(std::chrono::milliseconds(10)); } - // --- 核心改动：平滑收尾逻辑 --- - // 即使触发了停止，我们也不立即关闭 is_recording 开关 - // 这样可以确保正在 ALSA 缓冲区或 DMA 队列里的数据被 data_callback 继续捞走 if (stop_triggered) { - printf("正在执行 1.5 秒平滑数据刷新..."); - fflush(stdout); + // “宁多不少”核心：延时 1.5s 确保 ALSA/DMA 缓冲区数据全部入库 std::this_thread::sleep_for(std::chrono::milliseconds(1500)); - is_recording.store(false); // 此时才真正切断回调写入 - printf("完成。\n"); + is_recording.store(false); } if (progress_thread.joinable()) progress_thread.join(); - // 拷贝数据进行识别 std::vector captured; { std::lock_guard lock(buffer_mutex);