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SmoothFlow Deployment Media Flow Controller Administrator’s Guide
262 Creating On-Demand Assets Copyright © 2010, Juniper Networks, Inc.
Creating On-Demand Assets
You may use another encoding source (rather than encoding.com), or do the encoding
yourself. In this scenario, after creating the multi-bitrate profiles of a particular video, and an
Asset Description file, you pre-stage the encoded assets to Media Flow Controller. The set of
multi-bitrate video profiles along with the Asset Description file, are, together, "the asset.”
Important! You encode the multi-bitrate video profiles yourself if using this procedure.
Note! These assets are called "On-Demand" because the multi-bitrate assets (already
encoded) and the Asset Description file are pre-staged to Media Flow Controller and the
appropriate profiles are served as client requests arrive (on-demand). When bandwidth at a
client rises, a higher bitrate profile chunk is served; when bandwidth falls, a lower bitrate
profile chunk is served.
Tip! Set the cache-age to a high value for the SmoothFlow namespace so that content does
not get expired.
You begin by determining how many bitrate profiles for a video you want to encode; see
“Encoding Requirements” on page 252 for more information.
Step 1 – Encode multi-bitrate (MBR) profiles for each video; see Bitrate Profiles Naming
Conventions for On-Demand Assets .
Step 2 – Create AssetDescription.dat File for On-Demand Assets .
Step 3 – Pre-Stage On-Demand Assets (multi-bitrate files plus Asset Description file) to origin
or Media Flow Controller.
pub-asset-encoder.log
Fields:
Unique-Key , Date , Time , Publishing-Type , Service Provider , User-ID , FTP-Source ,
FTP-Dest , Video-FileName , Num-Profiles , Bit-Rates (kbps) , Time-To-Upload , Time-To-
Encode , Completion-Time , Success-Status
AX-001, MM/DD/YYYY, HH:MM:SS, Smoothflow/iPhone, encoding.com, xyga, username@ip:/
in-path, username@ip:/out-path, foo.flv, 2, 500; 1000, HH:MM:SS, HH:MM:SS,
HH:MM:SS, PASS
pub-asset-polling.log
Unique-Key, Date, Time, Num-TxID’s, Tx-ID’s (semi-colon delimited string)
AX-001, MM/DD/YYYY, HH:MM:SS, 2, 123432;21300
pub-asset-segmenter.log
Fields:
Unique-Key , Date , Time , Time-To-Segment , Num-Objects/Chunks , Origin-Path , Success-
Status
AX-001, MM/DD/YYYY, HH:MM:SS, 00:02:40, 2039, ip:/path, Error (Code:093)