Copyright © 2016 Lintest Systems, LLC – All rights reserved 11/27/2016
With the PiCapture HD1 you could have:
-
A single HDMI video source
-
A single YPbPr component video source.
There are several LED indicators on the PiCapture board:
GREEN
Indicates that the video processor is operating properly
BLUE
Indicates that input video has been detected and is available to the Raspberry Pi. Note
that if you attempt to capture video when the blue light is not on, you may receive an
“MMAL” (camera driver) error on the Raspberry Pi. In some cases, it may be necessary
to restart the Raspberry Pi in order to recover.
YELLOW
Indicates that the Raspberry Pi is communicating with the video processor. This light
will flash during software updates.
There are also 4 “Format” LEDs (labeled LED0 - LED3) that indicate the video standard detected:
DETECTED MODES
Not
Locked
480p
720p
1080i
1080p
LED 0
Flashing
Flashing
Flashing
Flashing
LED 1
On
On
On
LED 2
On
On
LED 3
On
Output
640x480
1296x730
960x540
1920x1080
Mode
6
5
5
1
Comments
Padded
from
1280x720
Must set
region of
interest
If the camera mode set in the Raspberry Pi does not match the locked video, you may receive an “MMAL”
(camera driver) error or see random noise in the captured frame.
1080i Video Sources
Although the PiCapture HD1 is designed for progressive video sources, we have implemented a mode to allow
the capture of 1080i video at reduced resolution. The resulting 960x540 video does not correspond to an
existing Raspberry Pi camera mode, and capturing this video requires using “Mode 5” and setting the “region of
interest” to match the captured resolution using the “-roi” option:
raspivid –md 5 –awbg 1.0,1.0 –awb off –ex off -roi 0.0,0.0,0.74,0.74 -o
