71 lines
2.4 KiB
C#
71 lines
2.4 KiB
C#
|
namespace SHH.CameraSdk.HikFeatures;
|
|||
|
|
|
|||
|
|
public class HikPtzProvider : IPtzFeature
|
|||
|
|
{
|
|||
|
|
private readonly IHikContext _context;
|
|||
|
|
|
|||
|
|
public HikPtzProvider(IHikContext context)
|
|||
|
|
{
|
|||
|
|
_context = context;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public async Task PtzControlAsync(PtzAction action, bool stop, int speed)
|
|||
|
|
{
|
|||
|
|
int userId = _context.GetUserId();
|
|||
|
|
if (userId < 0) throw new InvalidOperationException("设备离线");
|
|||
|
|
|
|||
|
|
// 1. 映射指令
|
|||
|
|
uint hikCommand = action switch
|
|||
|
|
{
|
|||
|
|
PtzAction.Up => HikNativeMethods.TILT_UP,
|
|||
|
|
PtzAction.Down => HikNativeMethods.TILT_DOWN,
|
|||
|
|
PtzAction.Left => HikNativeMethods.PAN_LEFT,
|
|||
|
|
PtzAction.Right => HikNativeMethods.PAN_RIGHT,
|
|||
|
|
PtzAction.ZoomIn => HikNativeMethods.ZOOM_IN,
|
|||
|
|
PtzAction.ZoomOut => HikNativeMethods.ZOOM_OUT,
|
|||
|
|
PtzAction.FocusNear => HikNativeMethods.FOCUS_NEAR,
|
|||
|
|
PtzAction.FocusFar => HikNativeMethods.FOCUS_FAR,
|
|||
|
|
PtzAction.IrisOpen => HikNativeMethods.IRIS_OPEN,
|
|||
|
|
PtzAction.IrisClose => HikNativeMethods.IRIS_CLOSE,
|
|||
|
|
PtzAction.Wiper => HikNativeMethods.WIPER_PWRON,
|
|||
|
|
_ => 0
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
if (hikCommand == 0) return;
|
|||
|
|
|
|||
|
|
// 2. 转换停止标志 (海康: 0=开始, 1=停止)
|
|||
|
|
uint dwStop = stop ? 1u : 0u;
|
|||
|
|
|
|||
|
|
// 3. 限制速度范围 (1-7)
|
|||
|
|
uint dwSpeed = (uint)Math.Clamp(speed, 1, 7);
|
|||
|
|
|
|||
|
|
// 4. 调用 SDK
|
|||
|
|
await Task.Run(() =>
|
|||
|
|
{
|
|||
|
|
// Channel 默认为 1
|
|||
|
|
bool result = HikNativeMethods.NET_DVR_PTZControlWithSpeed_Other(userId, 1, hikCommand, dwStop, dwSpeed);
|
|||
|
|
|
|||
|
|
if (!result)
|
|||
|
|
{
|
|||
|
|
// 这里通常不抛异常，因为云台繁忙或到头是常态，记录日志即可
|
|||
|
|
// Console.WriteLine($"PTZ Error: {HikNativeMethods.NET_DVR_GetLastError()}");
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public async Task PtzStepAsync(PtzAction action, int durationMs, int speed)
|
|||
|
|
{
|
|||
|
|
// 1. 开始转动 (调用已有的逻辑，stop=false)
|
|||
|
|
await PtzControlAsync(action, false, speed);
|
|||
|
|
|
|||
|
|
// 2. 等待指定时间 (非阻塞等待)
|
|||
|
|
// 注意：这里使用 Task.Delay，精度对云台控制来说足够了
|
|||
|
|
if (durationMs > 0)
|
|||
|
|
{
|
|||
|
|
await Task.Delay(durationMs);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 3. 停止转动 (调用已有的逻辑，stop=true)
|
|||
|
|
await PtzControlAsync(action, true, speed);
|
|||
|
|
}
|
|||
|
|
}
|