Dev

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+projects/imx678_test

doc/projects_llm_framework_doc/llm_camera.md

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+# llm-camera
+视频源单元，用于从 USB V4L2 视频设备中获取视频流到内部通道。
+
+## setup
+配置单元工作。
+
+发送 json：
+```json
+{
+   "request_id":"2",
+   "work_id":"camera",
+   "action":"setup",
+   "object":"camera.setup",
+   "data":{
+      "response_format":"camera.raw",
+      "input":"/dev/video0",
+      "enoutput":false,
+      "frame_width":320,
+      "frame_height":320
+   }
+}
+```
+- request_id：参考基本数据解释。
+- work_id：配置单元时，为 `camera`。
+- action：调用的方法为 `setup`。
+- object：传输的数据类型为 `camera.setup`。
+- response_format：返回结果为 `camera.raw`，是 yuv422 格式。
+- input：读取的设备名。
+- frame_width：输出的视频帧宽。
+- frame_height：输出的视频帧高。
+- enoutput：是否起用用户结果输出。如果不需要获取摄像头图片，请不要开启该参数，视频流会增加信道的通信压力。
+
+响应 json：
+
+```json
+{
+    "created":1731488402,
+    "data":"None",
+    "error":{
+        "code":0,
+        "message":""
+    },
+    "object":"None",
+    "request_id":"2",
+    "work_id":"camera.1003"
+}
+```
+- created：消息创建时间，unix 时间。
+- work_id：返回成功创建的 work_id 单元。
+
+
+## exit
+
+单元退出。
+
+发送 json：
+
+```json
+{
+    "request_id": "7",
+    "work_id": "camera.1003",
+    "action": "exit",
+}
+```
+
+响应 json：
+
+```json
+{
+    "created":1731488402,
+    "data":"None",
+    "error":{
+        "code":0,
+        "message":""
+    },
+    "object":"None",
+    "request_id":"7",
+    "work_id":"camera.1003"
+}
+```
+
+error::code 为 0 表示执行成功。
+
+## taskinfo
+
+获取任务列表。
+
+发送 json：
+```json
+{
+	"request_id": "2",
+	"work_id": "camera",
+	"action": "taskinfo"
+}
+```
+
+响应 json：
+
+```json
+{
+    "created":1731652311,
+    "data":["camera.1003"],
+    "error":{
+        "code":0,
+        "message":""
+    },
+    "object":"camera.tasklist",
+    "request_id":"2",
+    "work_id":"camera"
+}
+```
+
+获取任务运行参数。
+
+发送 json：
+```json
+{
+	"request_id": "2",
+	"work_id": "camera.1003",
+	"action": "taskinfo"
+}
+```
+
+响应 json：
+
+```json
+{
+    "created":1731652344,
+    "data":{
+        "enoutput":false,
+        "response_format":"camera.raw",
+        "input":"/dev/video0",
+        "frame_width":320,
+        "frame_height":320
+    },
+    "error":{
+        "code":0,
+        "message":""
+    },
+    "object":"camera.taskinfo",
+    "request_id":"2",
+    "work_id":"camera.1003"
+}
+```
+
+
+> **注意：work_id 是按照单元的初始化注册顺序增加的，并不是固定的索引值。**