78 lines
2.1 KiB
ReStructuredText
78 lines
2.1 KiB
ReStructuredText
.. _ico_encode_sample:
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ICO音频编码后进行天气对话
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############################
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概述
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************************
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该示例程序介绍如何通过ico编码方式对音频数据进行编码，并通过闲聊会话和云端进行交互，获取天气信息。
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.. toctree::
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:hidden:
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../../sample_build
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.. include:: ../../sample_build.rst
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调用方法
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************************
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- 初始化lsc服务，并设置设备ID、产品ID、secret ID
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.. code-block:: c
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lsc_config_t cfg = {
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.device_id = DEVICE_ID_STRING,
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.product_id = PRODUCT_ID_STRING,
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.secret_id = SECRET_ID_STRING,
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};
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lsc_init(lsc_config_t *cfg);
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- 注册lsc事件回调函数，发起连接，并通过回调函数获取连接结果
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.. code-block:: c
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static void lsc_event_cb(lsc_event_e evt, void *data, uint32_t size, void *usr)
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{
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//获取事件
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}
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lsc_add_callback(LSC_CONNECTED | LSC_DISCONNECTED | LSC_CLOUD_AUTH_FAILD | LSC_GOT_TOKEN, lsc_event_cb, NULL);
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lsc_connect();
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- 初始化闲聊会话
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.. code-block:: c
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session_voice_init();
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- 注册回调函数，云端返回的结果会以事件的形式下发
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.. code-block:: c
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static void voice_event_cb(session_voice_event_e evt, void *data, uint32_t size, void *usr)
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{
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//获取事件
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}
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session_voice_add_evt_callback(voice_event_cb, SESSION_VOICE_TTS | SESSION_VOICE_IAT | SESSION_VOICE_REPLY_URL | SESSION_VOICE_DRAW,NULL);
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- 设置会话参数，使能云端vad功能
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.. code-block:: c
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session_voice_config_t config = {
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.vad_enable = true,
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.speex_size = 0,
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.aue = "ico",
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};
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session_voice_set_config(&config);
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- 启动会话，对原始音频数据进行ico编码，然后上传编码后的语音数据
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.. note:: draw_inc_file[]数组中存放的是录音("深圳天气怎么样")数据，格式为16Khz, 16bit单通道PCM
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.. code-block:: c
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session_voice_start();
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mock_record_audio_stream_send((uint8_t *)draw_inc_file, sizeof(draw_inc_file))
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示例中所使用的API文档见 ::ref:`session_voice` |