/// <summary>
/// Collects all available image formats from the device.
/// </summary>
private void fetchFormats()
{
formats = new List <Analog.Video.Format>();
v4l2_fmtdesc cur = new v4l2_fmtdesc();
cur.index = 0;
while (ioControl.EnumerateFormats(ref cur) == 0)
{
formats.Add(new Analog.Video.Format(cur));
cur.index++;
}
}
/// <summary>
/// Get all the pixel formats supported by the device.
/// </summary>
/// <returns>Supported pixel formats.</returns>
public override IEnumerable <PixelFormat> GetSupportedPixelFormats()
{
Initialize();
v4l2_fmtdesc fmtdesc = new v4l2_fmtdesc
{
index = 0,
type = v4l2_buf_type.V4L2_BUF_TYPE_VIDEO_CAPTURE
};
List <PixelFormat> result = new List <PixelFormat>();
while (V4l2Struct(VideoSettings.VIDIOC_ENUM_FMT, ref fmtdesc) != -1)
{
result.Add(fmtdesc.pixelformat);
fmtdesc.index++;
}
return(result);
}
internal Format(v4l2_fmtdesc fmtdesc)
{
this.fmtdesc = fmtdesc;
}
ioctl(int device, v4l2_operation request, ref v4l2_fmtdesc argp);
/// <summary>
/// Calls VIDIOC_ENUM_FMT.
/// </summary>
public int EnumerateFormats(ref v4l2_fmtdesc fmt)
{
return(ioctl(deviceHandle, v4l2_operation.EnumerateFormats, ref fmt));
}
