Nielsen ID3 User Manual page 11

Step
ID3 Tags in MPEG-DASH
Steams Only
At the start of processing, your
application generates an MPD that
includes the line
<InbandEventStream
schemeIdUri="www.nielsen.com:i
d3:v1" value="1"/>
ID3 Tags in HLS Steams Only
Your application stamps the
metadata PES packet with the
Presentation Timestamp (PTS) of
the most recently processed audio
PES packet.
ID3 Tags in MPEG-DASH
Steams Only
6
Your application inserts the entire
Nielsen ID3 tag in an emsg box.
7 ID3 Tags in HLS Steams Only
Your application multiplexes the
metadata PES packet into the
outgoing MPEG stream.
8 ID3 Tags in HLS Steams Only
Your application delivers the
transport stream to an HLS
segmenter.
9 The segmented content is
delivered downstream to mobile
devices and/or browsers.
Release 1.8 Revision F
Process
Apply the proper PTS to the
metadata PES packet to
synchronize the ID3 tags with the
corresponding audio.
See section 5.10.3.3 of ISO / IEC
23009-1-2014(E) for a detailed
explanation of emsg box format
and signaling. The
DASHEventMessageBox
scheme_id_uri should be set to
the null-terminated string
"www.nielsen.com:id3:v1". The
'value' field must be set to the null-
terminated ASCII string "1". The
message_data field must hold the
entire Nielsen ID3 tag.
Requirements
10
ID3 Tag Validator Application User Manual
Note
The entire 271-byte ID3 tag
delivered by PCM-to-ID3
SDK (step 4) must be
included, without alteration,
in the emsg box. Eliminating
or modifying any portion of
the ID3 tag may result in
crediting errors.
The segmenter splits the
transport stream into
multiple transport-stream
(TS) segments and
generates the required
m3u8 index.
Nielsen Confidential