Vmoox: Cross-platform Video Publishing Solution ... - pace university

3. Transcoder - Design
Vmoox performs offline as well as real-time transcoding. In this implementation,
videos are transcoded from Flash to the H.264/AVC codec.
The transcoder provides transcoding services in the following 2 instances:
(a) Initial Transcode
A request for this service comes from the VPSI. When new content is input, the
VPSI sends all files to the Transcoder and the Transcoder transcodes the first
section of each clip. The length of the initial section is a configurable variable
(i.e., each publisher is able to detrmine how long of a section they would like
transcoded) in this implementation the duration is 3 minutes.
(b) Requested Transcode
A request for this service comes from VEDA. When VEDA receives a requese for
a video that has not yet been fully transcoded, it routes this file to the Transcoder
for a full transcode. As part of the request, VEDA sends the transcoder a list of
chapters to generate.
Figure 7: Transcoder - Initial Transcoding Overview
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