private async Task Write(StorageFile file)
{
var stream = await file.OpenAsync(FileAccessMode.ReadWrite);
var factory = new VideoWriteServiceFactory();
var prop = new VideoProperty();
prop.BitRate = 800000;
prop.Format = VideoEncoding.WindowsMediaVideo;
prop.FPS = 25;
prop.Height = 480;
prop.Width = 640;
prop.Output = stream;
var service = factory.Create(prop);
UInt32[] data = new UInt32[prop.Height * prop.Width];
for (int i = 0; i < data.Length; ++i)
{
data[i] = 0x0000FF00;
}
for (int i = 0; i < 20 * prop.FPS; ++i)
{
service.WriteFrame(data);
}
service.Close();
}
private void SetDeviceProperty(VideoProperty prop, MediaCaptureInfo.PropertyInfo propInfo, MediaCaptureConfiguration.PropertyValue <bool> value)
{
if (propInfo.Supported)
{
VideoPropertyFlags flag = (propInfo.AutoControlled && value.Auto) ? VideoPropertyFlags.Auto : VideoPropertyFlags.Manual;
this.camera.SetProperty(prop, value.Value ? 1 : 0, flag);
}
}
public void SetUp()
{
property = new VideoProperty();
property.BitRate = 12345;
property.Format = VideoEncoding.H264;
property.Height = 11111;
property.Width = 12345;
property.Output = null;
property.FPS = 30;
}
private MediaCaptureConfiguration.PropertyValue <bool> GetValueBool(VideoProperty prop, bool supported)
{
int flags = 0;
int value = 0;
MediaCaptureConfiguration.PropertyValue <bool> propValue = new MediaCaptureConfiguration.PropertyValue <bool>();
if (supported &&
this.camera.GetProperty(prop, ref value, ref flags))
{
propValue.Value = (value == 1) ? true : false;
propValue.Auto = (flags == (int)VideoPropertyFlags.Auto) ? true : false;
}
return(propValue);
}
private MediaCaptureConfiguration.PropertyValue <int> GetValueInt(VideoProperty prop, bool supported)
{
int flags = 0;
int value = 0;
MediaCaptureConfiguration.PropertyValue <int> propValue = new MediaCaptureConfiguration.PropertyValue <int>();
if (supported &&
this.camera.GetProperty(prop, ref value, ref flags))
{
propValue.Value = value;
propValue.Auto = flags == (int)VideoPropertyFlags.Auto;
}
return(propValue);
}
private MediaCaptureInfo.PropertyInfo GetInfo(VideoProperty prop)
{
MediaCaptureInfo.PropertyInfo info = new MediaCaptureInfo.PropertyInfo();
int min = 0, max = 0, stepSize = 0, defValue = 0, flag = 0;
if (this.camera.GetRange(prop, ref min, ref max, ref stepSize, ref defValue, ref flag))
{
info.MinValue = min;
info.MaxValue = max;
info.StepSize = stepSize;
info.DefaultValue = defValue;
info.AutoControlled = (flag == (int)VideoPropertyFlags.Auto) ? true : false;
info.Supported = true;
}
else
{
info.Supported = false;
}
return(info);
}
private PropertyInfo GetInfo(VideoProperty prop, MediaCaptureDevice device)
{
PropertyInfo info = new PropertyInfo();
int min = 0, max = 0, stepSize = 0, defValue = 0, flag = 0;
if (device.GetRange(prop, ref min, ref max, ref stepSize, ref defValue, ref flag))
{
info.MinValue = min;
info.MaxValue = max;
info.StepSize = stepSize;
info.DefaultValue = defValue;
info.AutoControlled = ((flag & (int)VideoPropertyFlags.Auto) != 0) ? true : false;
info.Supported = true;
}
else
{
info.Supported = false;
}
return(info);
}
private CameraServer()
{
m_defaultUsbDevice = 0;
m_lockObject = new object();
m_sources = new Dictionary <string, VideoSource>();
m_sinks = new Dictionary <string, VideoSink>();
m_tables = new Dictionary <int, ITable>();
m_publishTable = NetworkTable.GetTable(PublishName);
m_nextPort = BasePort;
m_addresses = new List <string>();
m_videoListener = new VideoListener((vidEvent) =>
{
switch (vidEvent.Kind)
{
case EventKind.SourceCreated:
{
// Create subtable for the camera
ITable table = m_publishTable.GetSubTable(vidEvent.Name);
lock (m_lockObject)
{
m_tables.Add(vidEvent.SourceHandle, table);
}
table.PutString("source", MakeSourceValue(vidEvent.SourceHandle));
table.PutString("description",
NativeMethods.GetSourceDescription(vidEvent.SourceHandle));
table.PutBoolean("connected", NativeMethods.IsSourceConnected(vidEvent.SourceHandle));
table.PutStringArray("streams", GetSourceStreamValues(vidEvent.SourceHandle));
try
{
VideoMode mode = NativeMethods.GetSourceVideoMode(vidEvent.SourceHandle);
table.SetDefaultString("mode", VideoModeToString(mode));
table.PutStringArray("modes", GetSourceModeValues(vidEvent.SourceHandle));
}
catch (VideoException)
{
// Do nothing
}
break;
}
case EventKind.SourceDestroyed:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
table.PutString("source", "");
table.PutStringArray("streams", new string[0]);
table.PutStringArray("modes", new string[0]);
}
break;
}
case EventKind.SourceConnected:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
// update the description too (as it may have changed)
table.PutString("description",
NativeMethods.GetSourceDescription(vidEvent.SourceHandle));
table.PutBoolean("connected", true);
}
break;
}
case EventKind.SourceDisconnected:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
table?.PutBoolean("connected", false);
break;
}
case EventKind.SourceVideoModesUpdated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
table.PutStringArray("modes", GetSourceModeValues(vidEvent.SourceHandle));
}
break;
}
case EventKind.SourceVideoModeChanged:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
table.PutString("mode", VideoModeToString(vidEvent.Mode));
}
break;
}
case EventKind.SourcePropertyCreated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
PutSourcePropertyValue(table, vidEvent, true);
}
break;
}
case EventKind.SourcePropertyValueUpdated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
PutSourcePropertyValue(table, vidEvent, false);
}
break;
}
case EventKind.SourcePropertyChoicesUpdated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
List <string> choices = NativeMethods.GetEnumPropertyChoices(vidEvent.PropertyHandle);
table.PutStringArray($"PropertyInfo/{vidEvent.Name}/choices", choices);
}
break;
}
case EventKind.SinkSourceChanged:
case EventKind.SinkCreated:
case EventKind.SinkDestroyed:
{
UpdateStreamValues();
break;
}
case EventKind.NetworkInterfacesChanged:
{
m_addresses = NativeMethods.GetNetworkInterfaces();
break;
}
default:
break;
}
}, (EventKind)0x4fff, true);
m_tableListener = NtCore.AddEntryListener($"{PublishName}/", (uid, key, value, flags) =>
{
string relativeKey = key.Substring(PublishName.Length + 1);
int subKeyIndex = relativeKey.IndexOf('/');
if (subKeyIndex == -1)
{
return;
}
string sourceName = relativeKey.Substring(0, subKeyIndex);
VideoSource source;
if (!m_sources.TryGetValue(sourceName, out source))
{
return;
}
relativeKey = relativeKey.Substring(subKeyIndex + 1);
string propName;
if (relativeKey == "mode")
{
// reset to current mode
NtCore.SetEntryString(key, VideoModeToString(source.GetVideoMode()));
return;
}
else if (relativeKey.StartsWith("Property/"))
{
propName = relativeKey.Substring(9);
}
else if (relativeKey.StartsWith("RawProperty/"))
{
propName = relativeKey.Substring(12);
}
else
{
return;
}
VideoProperty prop = source.GetProperty(propName);
switch (prop.Kind)
{
case PropertyKind.None:
return;
case PropertyKind.Boolean:
NtCore.SetEntryBoolean(key, prop.Get() != 0);
break;
case PropertyKind.Integer:
case PropertyKind.Enum:
NtCore.SetEntryDouble(key, prop.Get());
break;
case PropertyKind.String:
NtCore.SetEntryString(key, prop.GetString());
break;
default:
return;
}
}, NotifyFlags.NotifyImmediate | NotifyFlags.NotifyUpdate);
}
public int GetVideoProperty(VideoProperty type) {
int raw_ret = bacon_video_widget_get_video_property(Handle, (int) type);
int ret = raw_ret;
return ret;
}
public void SetVideoProperty(VideoProperty type, int value) {
bacon_video_widget_set_video_property(Handle, (int) type, value);
}
public VideoElement(string name, string extension, string path, VideoProperty property, TimeSpan duration)
: base(name, extension, path)
{
Property = property;
Duration = duration;
}