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Chapter 9
Testing HDMI Sink Devices
Testing HDMI InfoFrames (882 only)
This section provides steps on how to test handling of auxiliary (InfoFrame) packets by an
HDMI display. The 882 loads and sends default Auxiliary Video Information (XAVI), Audio
(XAUD), and Source Product Description (XSPD) InfoFrame packet buffers to the display
for each format (see table on page 256 for a list of HDMI formats). The XAVI and the
XAUD InfoFrame packets are sent at every frame (repeated mode), while the XSPD is
sent only once. The XMPG and XGIF InfoFrames are gated off and not enabled.
Note: This feature is not supported on the 881 generator.
HDMI provides various types of auxiliary data in the form of InfoFrames. InfoFrames allow
the HDMI source to keep an HDMI display informed as to “what is coming down the pipe”
so that it can present the content optimally—without any viewer intervention.
There are five different types of InfoFrames:
•
auxiliary video information (AVI)
•
audio (AUD)
•
source product description (SPD)
•
MPEG information (MPG)
•
generic (vendor-specific) information (GIF)
Each type carries information regarding a different aspect of the HDMI audio/video
transmission.
The procedures below can be performed using the front panel or the command line
interface.
Viewing InfoFrame contents (882 only)
The 882 provides a convenient method for monitoring the InfoFrame content of the
transmitted HDMI signal. The procedure below describes how to view current InfoFrame
contents.
Note: This feature is not supported on the 881 generator.
To view current HDMI InfoFrame contents transmitted from the 882:
1. Set up the 882 for HDMI output. See “
Setting up the 882 for HDMI testing
2. Press the
Source
key and choose a format suitable for the HDMI display (for example,
DMT0660). Refer to the table in “
Alternatively, to select the format using the command line interface, enter the following
commands:
/tffs0/Library/Formats // Set format path to 882 memory
Summary of Contents for 881
Page 1: ...881 882 Video Test Instrument User Guide 882E for HDMI ...
Page 12: ...10 Contents ...
Page 50: ...38 Chapter 1 Getting Started ...
Page 84: ...72 Chapter 2 Testing Video Displays ...
Page 99: ...882 Video Test Instrument User Guide Rev A 35 87 ...
Page 102: ...90 Chapter 3 Administrative Tasks ...
Page 107: ...882 Video Test Instrument User Guide Rev A 35 95 ...
Page 216: ...204 Chapter 5 Working with Formats ...
Page 248: ...236 Chapter 7 Working with Images ...
Page 264: ...252 Chapter 8 Working with Test Sequences ...
Page 382: ...40 Chapter 11 Testing EDID for HDMI 2 Expand the EDID Block in the navigation view ...
Page 446: ...104 Chapter 12 CEC Interactive Troubleshooting Environment ITE ...
Page 493: ...882 Video Test Instrument User Guide Rev A 35 151 ...
Page 591: ...882 Video Test Instrument User Guide Rev A 35 213 Commands by name ...
Page 687: ...882 Video Test Instrument User Guide Rev A 35 309 Example DVIC 23 FMTU ...
Page 1018: ...580 Appendix B Image Reference The EMITest5 image is shown below ...
Page 1094: ...656 Appendix B Image Reference ...
Page 1124: ...686 Appendix C Error Messages ...
Page 1140: ...702 Appendix D Format Reference ...