public Camera BuildCamera(CameraProfile profile, CameraConfig config, byte[] thumbnail)
{
lock (_accessLock)
{
// 检查给定的源是否存在
if (profile.FilterType == FilterType.LocalCamera
|| profile.FilterType == FilterType.LocalDesktop)
{
if (!Locator.Get<IFilterManager>().IsFilterExist(profile.FilterType, profile.FilterId))
{
throw new FilterNotFoundException(string.Format(CultureInfo.InvariantCulture,
"Cannot find filter by type [{0}] and id [{1}].",
profile.FilterType, profile.FilterId));
}
}
Camera camera = _cameras.Find(c => c.Id == profile.Id);
if (camera == null)
{
camera = CameraBuilder.Create(profile, config);
_cameras.Add(camera);
camera.Thumbnail = thumbnail;
}
return camera;
}
}
public Camera(CameraProfile profile, CameraConfig config, IVideoSource videoSource)
{
if (profile == null)
throw new ArgumentNullException("profile");
if (config == null)
throw new ArgumentNullException("config");
if (videoSource == null)
throw new ArgumentNullException("videoSource");
_profile = profile;
_config = config;
_videoSource = videoSource;
}
internal static Camera Create(CameraProfile profile, CameraConfig config)
{
switch (profile.FilterType)
{
case FilterType.LocalCamera:
return Create(profile, config,
new VideoCaptureDeviceVideoSource(config.OriginalSourceString)
{
DesiredFrameRate = 10000000 / config.FrameRate, // 1 fps, 30 fps = 10000000 / 30 = 333333
DesiredFrameSize = new System.Drawing.Size(config.Resolution.Width, config.Resolution.Height),
DesiredSnapshotSize = new System.Drawing.Size(config.Resolution.Width, config.Resolution.Height),
});
case FilterType.LocalDesktop:
return Create(profile, config,
new DesktopVideoSource(int.Parse(config.OriginalSourceString, CultureInfo.InvariantCulture))
{
FrameInterval = config.FrameInterval, // default 1000 == 1 fps, 30 fps = 1000 / 30 = 33
IsResized = true,
ResizeWidth = config.Resolution.Width,
ResizeHeight = config.Resolution.Height,
});
case FilterType.LocalAVIFile:
return Create(profile, config,
new FileVideoSource(config.OriginalSourceString));
case FilterType.NetworkJPEG:
return Create(profile, config,
new JpegVideoSource(config.OriginalSourceString)
{
FrameInterval = config.FrameInterval,
HttpUserAgent = config.UserAgent,
Login = config.UserName,
Password = config.Password,
});
case FilterType.NetworkMJPEG:
return Create(profile, config,
new MJpegVideoSource(config.OriginalSourceString)
{
HttpUserAgent = config.UserAgent,
Login = config.UserName,
Password = config.Password,
});
default:
throw new NotSupportedException("Do not support the given filter type " + profile.FilterType.ToString());
}
}
public Camera CreateCamera(CameraProfile profile, CameraConfig config)
{
lock (_accessLock)
{
// 检查给定的源是否存在
if (profile.FilterType == FilterType.LocalCamera
|| profile.FilterType == FilterType.LocalDesktop)
{
if (!Locator.Get<IFilterManager>().IsFilterExist(profile.FilterType, profile.FilterId))
{
throw new FilterNotFoundException(string.Format(CultureInfo.InvariantCulture,
"Cannot find filter by type [{0}] and id [{1}].",
profile.FilterType, profile.FilterId));
}
}
else if (profile.FilterType == FilterType.LocalAVIFile)
{
if (!File.Exists(profile.FilterId))
{
throw new FilterNotFoundException(string.Format(CultureInfo.InvariantCulture,
"Cannot find filter by type [{0}] and id [{1}].",
profile.FilterType, profile.FilterId));
}
}
// 构造摄像机
Camera camera = _cameras.Find(c => c.Id == profile.Id);
if (camera == null)
{
camera = CameraBuilder.Create(profile, config);
_cameras.Add(camera);
camera.Thumbnail = Locator.Get<IStreamingManager>().GetCameraSnapshot(camera.Id);
Locator.Get<ICameraRepository>().Save(CameraBuilder.Translate(camera));
}
return camera;
}
}
internal static DACameraProfile Translate(CameraProfile profile)
{
DACameraProfile data = new DACameraProfile()
{
Id = profile.Id,
Name = profile.Name,
FilterType = (int)profile.FilterType,
FilterId = profile.FilterId,
Description = profile.Description,
Tags = profile.Tags
};
return data;
}
internal static CameraProfile Translate(DACameraProfile data)
{
CameraProfile profile = new CameraProfile(data.Id, (FilterType)data.FilterType, data.FilterId)
{
Name = data.Name,
Description = data.Description,
Tags = data.Tags
};
return profile;
}
internal static Camera Create(CameraProfile profile, CameraConfig config, IVideoSource videoSource)
{
return new Camera(profile, config, videoSource);
}
