ID3 Tag Validator Application User Manual
Release 1.8 Revision F
36
Nielsen Confidential
Corresponding Log Message
All INFO-tag fields appear in the INFO Tag Listing of the Summary Report. Any
incorrectly set fields are clearly marked in the listing. No corresponding messages appear
in the log file.
Examples
Each of the lines in Figure 6 shows that no INFO-tag field errors occurred. For each field,
only one error would be permitted before the test would be considered to have failed.
Because all INFO tags in the stream should have the same settings, if one INFO tag fails,
all INFO tags are likely to fail.
INFO Tag: Vendor ID Test: Pass <0/0/1>
INFO Tag: Device Type Test: Pass <0/0/1>
INFO Tag: Device ID Test: Pass <0/0/1>
INFO Tag: System Version Test: Pass <0/0/1>
INFO Tag: SDK Version Test: Pass <0/0/1>
INFO Tag: Distributor ID Test: Pass <0/0/1>
Figure 6 – INFO Tag Tests
Test 22 Result: Tag Placement Check
Tests 22 through 30 are MPEG-2 transport-stream checks. Validator runs the tests only if
the content being evaluated is a transport stream (either a single transport-stream file or
a segmented HLS stream).
Format
Format
<number of tag-placement errors / 0 /
maximum tolerated>
Number of Errors
Number of errors detected
0
Not used
Maximum Tolerated
Maximum number of errors tolerated before failure is declared
Meaning
If the incoming content is a transport stream that includes a watermarked AC-3
elementary stream, the tag-placement error field keeps track of the number of times that
an ID3 tag appears to be out of sync with the audio content that it represents.
Note
If the incoming stream is not a transport stream or the test is not conducted, the status is set
to “No Status.”
Corresponding Log Message
If Validator determines that a tag is badly placed in the transport stream, it issues this log
message:
