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CHAPTER
7-1
User Guide for Cisco Digital Media Manager 5.4.x
OL-15762-05
7
Cisco Hinter for RTSP
Revised: September 17, 2012
OL-15762-05
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Concepts, page 7-1
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Procedures, page 7-3
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Reference, page 7-6
Concepts
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Overview, page 7-1
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Workflow, page 7-2
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Restrictions, page 7-2
Overview
A streaming media framework called RTP over RTSP makes it possible for DMPs to play streaming
video on demand through RTSP connections. This framework prevents data loss inside streams and
maintains proper synchronization of audio to video, even in high-definition.
You must maintain two data files for each VoD that you will stream in this way.
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An MPEG2-TS source file, which uses the filename extension MPG. Its program stream might be
encoded as MPEG-1, MPEG-2, or MPEG-4 Part 10 (H.264).
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A “hinted” MOV file, which is derived from your MPG source file and imposes order upon it.
You must use our Cisco Hinter utility to output each hinted MOV file.
Cisco Hinter prepares MPEG2-TS files for interleaved RTP transmission through open source software
called Darwin Streaming Server (DSS). Hinter adds delivery information to a media track, which tells
DSS how to pack and stream (multiplex, or mux) data from the audio channel and the video channel. This
method improves audiovisual synchronization because these channels traverse the network together.
Your DSS can then deliver such hinted video to your DMPs upon demand, after you stage the MPG-MOV
pair to its media serving directory.
Audience
We prepared this material with specific expectations of you.
You administer Cisco DMS.