public TVViewer()
{
// initialize sdl stuff
screen = Sdl.SDL_SetVideoMode(720, 576, 32, Sdl.SDL_HWSURFACE | Sdl.SDL_DOUBLEBUF);
yuvOverlay = Sdl.SDL_CreateYUVOverlay(720, 576, Sdl.SDL_YUY2_OVERLAY, screen);
rect = new Sdl.SDL_Rect(0, 0, 720, 576);
pixels = Marshal.ReadIntPtr(Marshal.ReadIntPtr(yuvOverlay, 20));
// initialize adapter
adapter = new Adapter("/dev/video0");
adapter.SetControlValue(Control.Mute, 0);
// set desired capture method
adapter.CaptureMethod = CaptureMethod.ReadWrite;
// set video format
VideoCaptureFormat format = new VideoCaptureFormat(720, 576);
format.PixelFormat = v4l2_pix_format_id.YUYV;
format.Field = v4l2_field.Interlaced;
adapter.SetFormat(format);
adapter.Input = adapter.Inputs[adapter.Inputs.IndexOf("Name", "Television")];
adapter.Standard = adapter.Standards[adapter.Standards.IndexOf("Name", "PAL")];
Events.Quit += quit;
Events.KeyboardDown += keyDown;
}
/// <summary>
/// Creates a tuner.
/// </summary>
/// <param name="device">The parental Video4Linux device.</param>
/// <param name="index">The index of the tuner.</param>
/// <param name="type">The type of the tuner.</param>
internal Tuner(Adapter adapter, uint index, TunerType type)
{
this.adapter = adapter;
tuner = new v4l2_tuner();
tuner.index = index;
tuner.type = type;
getTuner();
}
public void Start()
{
var adapterone = new Adapter(_deviceone);
var adaptertwo = new Adapter(_devicetwo);
VideoCaptureFormat fone, ftwo;
bufferone = Init(adapterone,out fone);
buffertwo = Init(adaptertwo,out ftwo);
_w = (int)fone.Width;
_h = (int)fone.Height;
//lastImage = new byte[_w * _h * 2];
adapterone.StartStreaming();
adaptertwo.StartStreaming();
Stopwatch sw = new Stopwatch();
sw.Start();
//WL("started "+(Console.KeyAvailable?"haskey":"nokey"));
try {
while(_enabled)
{
int rone = adapterone.VideoStream.Read(bufferone,0,bufferone.Length);
int rtwo = adaptertwo.VideoStream.Read(buffertwo,0,buffertwo.Length);
//WL("Read "+rone+","+rtwo+" bytes");
long stamp = sw.ElapsedTicks;
//RawToBitmap("_1",fone,bufferone,false);
//RawToBitmap("_2",ftwo,buffertwo,false);
//RawToPGM("C1",stamp,fone,bufferone,true);
//RawToPGM("C2",stamp,ftwo,buffertwo,true);
//WL("ellapsed "+sw.ElapsedMilliseconds);
lock(lastlock) {
//DiffImage(fone.Width,fone.Height,bufferone,buffertwo,lastImage);
lastImage = StereoProcess.Go(fone.Width,fone.Height,bufferone,buffertwo);
}
//RawToPGM("D",stamp,fone,bufferdif,true);
//WL("ellapsed "+sw.ElapsedMilliseconds);
}
} finally {
adapterone.StopStreaming();
adaptertwo.StopStreaming();
}
}
static void Info(Adapter adapter)
{
WL("= Capabilities");
foreach(AdapterCapability cap in adapter.Capabilities)
{
WL(cap.ToString());
}
WL("= Driver");
WL(adapter.Driver);
WL("= BusInfo");
WL(adapter.BusInfo);
//VideoCaptureFormat format = new VideoCaptureFormat();
//adapter.GetFormat(format);
//WL("= vc "+format.Width+" "+format.Height+" "+format.PixelFormat);
//adapter.SetFormat(format);
WL("=Inputs");
foreach(Input inp in adapter.Inputs)
{
WL(inp.Name+" "+inp.Status+" "+inp.Type+" "+inp.SupportedStandards);
}
WL("=Outputs");
foreach(Output outp in adapter.Outputs)
{
WL(outp.Name+" "+outp.Status+" "+outp.Type+" "+outp.SupportedStandards);
}
WL("=Standard");
foreach(Standard std in adapter.Standards)
{
WL(std.Name+" "+std.FrameLines);
}
}
static void Read(Adapter adapter,byte[] buffer)
{
int r = adapter.VideoStream.Read(buffer,0,buffer.Length);
//WL("Read "+r+" bytes");
}
static byte[] Init(Adapter adapter, out VideoCaptureFormat format)
{
format = new VideoCaptureFormat() {
Field = Video4Linux.Analog.Kernel.v4l2_field.Any
,Width = 358,Height = 288
,PixelFormat = Video4Linux.Analog.Kernel.v4l2_pix_format_id.GREY
};
adapter.SetFormat(format);
//adapter.GetFormat(format);
int count = (int)(format.Width*format.Height*2);
byte[] buffer = new byte[count];
//WL("Method "+adapter.CaptureMethod+" "+format.Width+" "+format.Height+" "+format.PixelFormat+" "+format.Field+" "+format.BytesPerLine+" "+count);
return buffer;
}
