Hello, me
again -- Ying, one of members in this group. In
this topic, I would like to talk about how digital cinema work.
The projector has been found in a film-based cinema which involves a digital projector and a computer, also called as a "server".
Movies are provided to the cinema as a
digital file called “Digital Cinema Package (DCP)”. For a classic characteristic
film, this file will between 90 and 300GB of data (about 2 to 6 times the
information of a Blu-ray disc) and may reach a physical delivery on a usual
computer hard-drive or via satellite or fibre-optic broadband. Now, physical
deliveries are most widespread and become standard. Trailers arrive on a
separate hard-drive and range between 200 and 400MB in size.
In addition, wherever how DCP arrives, the
first thing is to copy into the internal hard-drives of servers. It generally uses
by USB port, a procedure called “ingesting”. DCPs are always encrypted.
The reproducing content is managed by the
server using a "playlist". There is a list of all the content which can
be cooperated as part of the performance. The playlist will be made as a member
of the cinema's staff via applying proprietary software to runs on the server. Besides,
listing the content into the playlist also contains automation cues which agree
the playlist to run the projector, screen masking, the sound system, tab
curtains and auditorium lighting etc. The playlist could be set up by hand, by
clicking the "play" button on the server's monitor screen, or
automatically at pre-set times.
Reference:
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