Cec Command Sending; Sending An Osd String; Sending A Cec Command In Text Format; Send Cec Command In Hexadecimal Format - Lightware MMX4x2-HDMI User Manual

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7. LW3 Programmers' Reference
7.13. CEC Command Sending
The device is able to send and receive Consumer Electronics Control (CEC) commands. This feature is for
remote controlling the source or sink device. CEC is a bi-directional communication via HDMI cable.
INFO:
The hidden first 2 bytes of the CEC command is static, it refers to the logical address of the sender
and the addressee. When the port is input, it is always 04 (from TV to Playback device 1.)., when the port
is output, it is always 40 (from Playback device 1. to TV). Broadcast addressing is also possible (in this
case it is 0F or 4F). #cec
7.13.1. Sending an OSD String
Sending the OSD string consists of two steps. First, set the CEC.OsdString property with the desired text, after
that, call the CEC.send(set_osd) method.
Step 1 – Set the CEC.OsdString property
Command and Response
SET·/MEDIA/CEC/<port>.OsdString=<text>
ç
pw·/MEDIA/CEC/<port>.OsdString=<text>
æ
Parameters
Parameter Parameter description
<port> Video input or video
output port
<text> The desired OSD string
Example
ç SET /MEDIA/CEC/I2.OsdString=Lightware
æ pw /MEDIA/CEC/I2.OsdString=Lightware
Step 2 – Call the CEC.send(set_osd) method
Command and Response
ç CALL·/MEDIA/CEC/<port>:send(set_osd)
æ mO·/MEDIA/CEC/I2:send
Parameters
The <port> parameters means the video input (I1-I4) or video output (O1-O2) port.
Example
ç CALL /MEDIA/CEC/I2:send(set_osd)
æ mO /MEDIA/CEC/I2:send
Values Value description
I1-I4 Video inputs
O1-O2 Video outputs
Letters (A-Z) and (a-z), hyphen (-), underscore (_),
numbers (0-9), and dot (.). Max length: 14 characters.
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
MMX4x2 series – User's Manual
7.13.2. Sending a CEC Command in Text Format
Command and Response
ç CALL·/MEDIA/CEC/<port>:send(<command>)
æ mO·/MEDIA/CEC/<port>:send
Parameters
The <port> parameters means the video input (I1-I4) or video output (O1-O2) port. The followings are
accepted as <command>:
image_view_on standby
down left
contents_menu favorite_menu
number_1 number_2
number_6 number_7
enter clear
input_select display_info
volume_up volume_down
play stop
fast_forward eject
stop_record pause_record
select_media_1 select_media_2
power_toggle power_on
f2 f3
Example
ç CALL /MEDIA/CEC/I2:send(power_on)
æ mO /MEDIA/CEC/I2:send
7.13.3. Send CEC Command in Hexadecimal Format
ç CALL·/MEDIA/CEC/<port>:sendHex(<hex_code>)
æ mO·/MEDIA/CEC/<port>:sendHex
Parameters
Parameter Parameter description
<port> Video input or video output
port
<hex_code> The desired CEC command
Example
ç CALL /MEDIA/CEC/I2:sendHex(8700E091)
æ mO /MEDIA/CEC/I2:sendHex
ok back up
right root_menu setup_menu
media_top_menu media_context_menu number_0
number_3 number_4 number_5
number_8 number_9 dot
channel_up channel_down sound_select
power_legacy page_up page_down
mute_toggle mute unmute
pause record rewind
skip_forward skip_backward 3d_mode
play_forward play_reverse select_next_media
select_media_3 select_media_4 select_media_5
power_off stop_function f1
f4
Values Value description
I1-I4 Video inputs
Video outputs
O1-O2
Max. 30 character (15 byte) in hexadecimal format.
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