/// <summary>
/// Set the resolution of Jpeg
/// </summary>
/// <param name="jr">resolution, can be 640x480 or 1280x960</param>
/// <param name="compression">compression rate,1x to 45x, default 24x</param>
/// <returns>True if success</returns>
public bool SetJpegResolution(JpegResolution jr, byte compression)
{
byte returnValue = 255;
if (compression > 45)
{
return(false);
}
CreatCommand(2, CMD_JPEG_RESOLUTION);
CreatCommand(new byte[] { (byte)jr, compression });
SendCommand(id_cmd);
SendCommand(para_cmd);
if (!ReceiveACK(CMD_JPEG_RESOLUTION, 100, ref returnValue) || returnValue != 0)
{
throw new Exception("C6820 set jpeg resolution error: " + returnValue.ToString());
}
return(true);
}
/// <summary>
/// Inititate camera with specific settings
/// </summary>
/// <param name="colorType">Color depth</param>
/// <param name="previewResolution">Preview resolution</param>
/// <param name="jpegResolution">Jpeg image resolution</param>
/// <returns>True if succeeded</returns>
public bool Initial(ColorType colorType, PreviewResolution previewResolution, JpegResolution jpegResolution)
{
// Create the command
command[0] = CMD_PREFIX;
command[1] = CMD_INITIAL;
command[2] = 0;
command[3] = (byte)colorType;
command[4] = (byte)previewResolution;
command[5] = (byte)jpegResolution;
// send 'Initial' command
SendCommand(command);
// Wait for ACK
if (!ReceiveACK(CMD_INITIAL, 100))
{
return(false);
}
// Create package size command
int packsize = PACKAGE_SIZE;
command[0] = CMD_PREFIX;
command[1] = CMD_PACKAGESIZE;
command[2] = 0x08;
command[3] = (byte)packsize; // PACKAGE_SIZE Low byte
command[4] = (byte)(packsize >> 8); // PACKAGE_SIZE High byte
command[5] = 0x00;
// Send 'Set Package Size' command
SendCommand(command);
// Wait for ACK
if (!ReceiveACK(CMD_PACKAGESIZE, 100))
{
return(false);
}
return(true);
}
/// <summary>
/// Inititate camera with specific settings
/// </summary>
/// <param name="colorType">Color depth</param>
/// <param name="previewResolution">Preview resolution</param>
/// <param name="jpegResolution">Jpeg image resolution</param>
/// <returns>True if succeeded</returns>
public bool Initial(ColorType colorType, PreviewResolution previewResolution, JpegResolution jpegResolution)
{
// Create the command
command[0] = CMD_PREFIX;
command[1] = CMD_INITIAL;
command[2] = 0;
command[3] = (byte)colorType;
command[4] = (byte)previewResolution;
command[5] = (byte)jpegResolution;
// send 'Initial' command
SendCommand(command);
// Wait for ACK
if (! ReceiveACK(CMD_INITIAL)) //100
return false;
// Create package size command
int packsize = PACKAGE_SIZE;
command[0] = CMD_PREFIX;
command[1] = CMD_PACKAGESIZE;
command[2] = 0x08;
command[3] = (byte)packsize; // PACKAGE_SIZE Low byte
command[4] = (byte)(packsize >> 8); // PACKAGE_SIZE High byte
command[5] = 0x00;
// Send 'Set Package Size' command
SendCommand(command);
// Wait for ACK
if (!ReceiveACK(CMD_PACKAGESIZE)) //100
return false;
return true;
}
