同步操作将从 OpenHarmony/docs 强制同步,此操作会覆盖自 Fork 仓库以来所做的任何修改,且无法恢复!!!
确定后同步将在后台操作,完成时将刷新页面,请耐心等待。
Add the API of the KWS plug-in to the //foundation/ai/engine/services/server/plugin directory. This API is used to call AI capabilities. The following code snippet is an example API implementation of the KWS plug-in. The reference code is available at the //foundation/ai/engine/services/server/plugin/asr/keyword_spotting directory.
#include "plugin/i_plugin.h
class KWSPlugin : public IPlugin {
public:
KWSPlugin();
~KWSPlugin();
const long long GetVersion() const override;
const char* GetName() const override;
const char* GetInferMode() const override;
int32_t Prepare(long long transactionId, const DataInfo &inputInfo, DataInfo &outputInfo) override;
int32_t SetOption(int optionType, const DataInfo &inputInfo) override;
int32_t GetOption(int optionType, const DataInfo &inputInfo, DataInfo &outputInfo) override;
int32_t SyncProcess(IRequest *request, IResponse *&response) override;
int32_t AsyncProcess(IRequest *request, IPluginCallback*callback) override;
int32_t Release(bool isFullUnload, long long transactionId, const DataInfo &inputInfo) override;
};
The preceding code implements the IPlugin API provided by the server. The following table shows the mapping between the client APIs and the plug-in APIs.
Table 1 Mapping between the client APIs and the plug-in APIs
Client API | Plug-in API | Description |
---|---|---|
AieClientPrepare | Prepare | Initializes the inference algorithm plug-in. For KWS, this API loads the KWS model from the fixed location (/sdcard/wenwen_inst.wk) to the memory. |
AieClientSyncProcess | SyncProcess | Executes the inference algorithm synchronously. For KWS, this API synchronously executes the audio inference algorithm to determine whether the specified wakeup keyword exists in the audio. |
AieClientAsyncProcess | AsyncProcess | Executes the inference algorithm asynchronously. Currently, this API is not used in KWS. However, you can implement the API based on your use case. |
AieClientSetOption | SetOption | Sets algorithm-related configuration items, such as the confidence threshold and delay. Currently, this API is not used in KWS. However, you can implement the API based on your use case. |
AieClientGetOption | GetOption | Obtains algorithm-related configuration items. For KWS, this API can obtain the input and output scale of the KWS model. The input scale is the MFCC feature (fixed value: 4000) required by the KWS model, and the output scale is the confidence (fixed value: 2) of the result. |
AieClientRelease | Release | Releases the algorithm model. For KWS, this API releases the specified algorithm model and clears the dynamic memory in the feature processor. |
NOTE
- The AieClientInit and AieClientDestroy APIs are used to connect to and disconnect from the server, respectively. They are not called in the plug-in algorithm and therefore do not need to be defined in the plug-in.
- The KWS plug-in needs to use the PLUGIN_INTERFACE_IMPL statement to expose the function pointer. Otherwise, the plug-in cannot be properly loaded.
```
PLUGIN_INTERFACE_IMPL(KWSPlugin);
```
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。