Tests 29 And 30 Result: Pmt Elementary Stream And Descriptor Checks - Nielsen ID3 User Manual

Tests 29 and 30 Result: PMT Elementary Stream and Descriptor Checks

Format
Format
Number of Errors
0
Maximum Tolerated
Meaning
For an MPEG-2 decoder to detect a Nielsen ID3 tag elementary stream, the decoder
must find an entry for a stream of type 0x15 followed by an MPEG-2 ID3 tag descriptor in
the PMT elementary-stream loop. Each time that the decoder finds a stream of type 0x15
in the loop, Validator counts it as a metadata PES. Each time that it finds an ID3 tag
descriptor, Validator counts it as an ID3 tag metadata descriptor.
For more information regarding the proper formation of PMT packets for ID3 Tag
Metadata, refer to "HTTP Live Streaming Metadata Spec." See "Related Documents" on
page 7.
Because both of these checks are "event" checks, not error checks, no messages are
logged when the tallies are incremented.
Example
The example below shows that the proper descriptor and elementary stream listing were
included in hundreds of PMTs. The test passed because only five instances are required.
Release 1.8 Revision F
<count of metadata elementary streams and
ID3 metadata descriptors found in the stream
/ 0 / maximum tolerated>
Count of streams and descriptors
Minimum count required for test to pass
Not used
MPEG-2: PMT Descriptor Test:
MPEG-2: PMT Elem Stream Test:
Pass <667/5/0>
Pass <667/5/0>
42
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