Manually, Setting, Teletext – Adtec digital YUV2QAM (version 01.02.01) Manual User Manual

Page 35: Processing, Pids, Manually setting teletext, Processing teletext, Setting teletext pids

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Manually Setting Teletext

As of firmware version 1.01.00, Teletext must be manually set on the Adtec YUV2QAM
device.
Open a terminal window and enter <telnet xxx.xxx.xxx.xxx>, where xxx.xxx.xxx.xxx is the
IP address of your YUV2QAM. Press <Enter>; when prompted, type <Adtec> for the user
name, and <none> for the password.
You can now control the unit via API commands.

Processing Teletext

The command for enabling and configuring Teletext Processing is ECMD PTX [Mode]
[Line_EN].
Modes - there are two modes that can be set as arguments when using the PTX command:

Mode

Argument Value

Off

0

Waveform

1

Line_EN: Which VBI lines the Teletext will ride on must be specified. The notation format
for this is "0-0x1ffff", given in hexadecimal form with bitfields.

Bit positions: specify as follows:

d0 = Line 6 (use 0 to disable, 1 to enable)

d1 = Line 7 (use 0 to disable, 1 to enable)

d2 through d16 corresponds to the remaining VBI lines, with d16 representing
Line 22.

Setting Teletext PIDs

The command for Teletext PID settings is ECMD TPI [argument]. There are two arguments
associated with this command: PIDx is the hexadecimal PID value. PIDd is the decimal PID
value. Available ranges for these settings are:

PIDx Range

PIDd Range

0x0020 - 0x1FFE

32 - 8190

The full command string would read like this: ECMD TPI [PIDx] [PIDd].
This command is documented in the API Guide found on your device. To access this Guide,
point a browser session to your device's IP address and this string: media/hd0/media. The
API Guide can also be accessed from the "Help" tab of the browser-based UI interface.

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