Cisco Digital Video Recorder in Stand-Alone Mode Uživatelský manuál Strana 26

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Lecture Recording
Video Capture
Galicaster software running on Ubuntu Linux supports different capture
devices, from low-end webcams to video capture cards with or without
hardware compression, as long as they are compatible with the standard
video for Linux. Supports a wide range of video formats. Full HD support.
Audio Capture
Galicaster software runs on Ubuntu Linux. The sound may be obtained
from the computer sound board (built into the motherboard or external),
as well as from the video capture card if it has audio ports. Can handle
audio in pulse-code modulation (PCM) or any compression format.
Data Capture
Galicaster software running on Ubuntu Linux captures the screen via any
frame-grabber card compatible with the video for Linuxstandard.
Content Editing
Video Editing
The video sources (consisting of at least two synchronised video files, one
containing the video capture and other the data capture) are packed
together with their metadata and generally ingested into Matterhorn
automatically, where they are automatically transcoded and processed.
Such processing includes automatic operations such as watermarking,
rescaling and re-encoding the videos. Other custom operations can be
defined. Matterhorn also features a basic trim tool to remove the
undesired parts at the beginning and the end of the recording.
Optionally, the video sources can be extracted and edited independently
with any video editor, before being ingested into Matterhorn.
Metadata
The metadata catalogues (in DublinCore format) are packed together and
processed with the video sources. They can be edited before the
recording (while it is scheduled, in both Matterhorn and Galicaster),
during the recording (thanks to the Galicaster interface) and after the
recording (with the administration console in Matterhorn).
Matterhorn processes the videos to extract additional metadata, such as
the technical characteristics of the videos, the time points where there is
a slide change, the text contained in the slides, etc.
Content Publishing
Distribution Server
Upload
Matterhorn automatically uploads the resulting videos to their own
distribution server. PuMuKIT then imports those videos and their
locations and they can be made available to the public as desired.
PuMuKIT also features a special operation to merge the two streams side-
by-side, brand and watermark the resulting video and upload it to
YouTube Edu.
Metadata
Publishing
Matterhorn publishes the metadata together with the videos.
PuMuKIT fetches those data automatically, but they can also be edited by
the operators. PuMuKIT can then publish the video metadata to portals
like iTunesU and ARCA.
Content Distribution
Metadata Server
PuMuKIT displays a rich set of metadata that catalogues the videos by
presenter, location, subject, etc., allowing complex and specific searches.
Video Server
PuMuKIT can manage different distribution channels, such as local
download and streaming servers, as well as external servers like YouTube.
The process is as simple as marking a checkbox, and it is independent of
the actual implementation of the download server (Apache, lighttpd,
nginx…) or streaming server (Wowza, Red5, FMS, etc.).
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