![Ross TES9 Скачать руководство пользователя страница 59](http://html1.mh-extra.com/html/ross/tes9/tes9_software-user-manual_1488783059.webp)
TES9 Software User Manual (Iss. 04)
Appendix B. Captioning Commands • 10–5
Realtime mode is terminated by the sequence <CTRL-C> <CR>, at which point the encoder can
once again accept commands from the host, and the channel being used for Realtime mode data is
restored to its previous state (ON or OFF).
Null Caption Distribution packets are inserted when there are no captions available for insertion.
Enter Pass-Through Mode
Format: <CTRL-A> 3 {n} {field} <CR>
This command puts the encoder into Pass-Through mode, where all further data received is
inserted into the video signal. The {field} parameter specifies which field of the video signal the
data is to be inserted into. The {n} parameter is a value from 1 to 4 inclusive, and specifies the
degree of processing which is applied to the received data, as outlined in
.
If the {n} parameter is not specified, then the default value of 4 is used.
While the encoder is in Pass-Through mode, it does not send any prompt sequence to the transmit
computer. If the transmit computer sends data faster than the encoder can insert it (limited by the
CEA-608 standard, and equal to 60 characters per second), the encoder issues flow control (i.e.
sends an XOFF character) to the transmit computer. In order to avoid losing data, the transmit
computer must temporarily stop sending data until it receives the XON character, at which point
it may continue.
In all four settings for the degree of processing, the parity bit is stripped off on input and set to
odd parity on output. Any occurrence of <CTRL-C> or <CTRL-F> in the data is interpreted as a
command to the encoder and is not inserted.
Pass-Through mode is terminated by a <CTRL-C> character, at which point the encoder enters
Null mode for the field being used for Pass-Through mode.
Pass-Through mode is also terminated by two <CTRL-F> characters in a row, which resets the
encoder and puts it into Command mode.
Set Null Mode
Format: <CTRL-A> 6 {field} <CR>
This command causes null bytes to be inserted in the video signal, for the field specified by the
{field} parameter.
Table 10.3 Values for Degree of Processing
Value of {n}
Result
1
All data is inserted as it is received
2
Legitimate caption control code pairs are aligned and
delayed so that the 2 bytes are transmitted in the same
field.
3
Provides the same processing as when {n} is 2, with
the addition that all caption control codes are doubled
(inserted twice)
4
Provides the same processing as when {n} is 3, but
filters out all non-caption control codes and discards
the character following a <CTRL-A>.
Содержание TES9
Страница 1: ...TES9 Multi Function HD SD SDI VANC Processor Software User Manual ...
Страница 6: ......
Страница 14: ...1 6 Introduction TES9 Software User Manual Iss 04 ...
Страница 26: ...3 10 Encoder Configuration TES9 Software User Manual Iss 04 ...
Страница 67: ...Notes ...