User`s guide

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9: Introduction to MVCP
Configuring Video Recording Compression
To record video using the SGI Media Server, you must set the compression type using
vtr.media.video.input.compression.type. The valid values follow:
Value Description
dv For DVCAM or DV (16-bit/48 Khz audio only), DCT-based compression
dvcpro For DVCPRO 25, DCT-based compression
dvcpro50 For DVCPRO 50, DCT-based compression
mpeg2 For SGI MPEG-2 long GOP, IMX, or I-frame recording
For a description of the compression types, see section “Media Formats” on page 67.
Recording a Clip
To record a clip, use the following procedure:
1. Open a TCP/IP connection to the SGI Media Server.
If successful, the server responds:
100 VTR Ready
2. Create a unit, which is a virtual videotape deck:
% UADD MFCODEC_0 * SHAR
3. Configure VST for audio and video recording as described in sections “Assigning
Audio Inputs” on page 113 and “Configuring Video Recording Compression” on
page 114.
4. Load the clip:
% LOAD unit-name clip-name BOTH CRTE
unit-name Specifies the name of the unit on which the clip is loaded.
clip-name Specifies the name of the clip is to be loaded.
The BOTH option means that the clip, clip-name, can be played or recorded onto. The
CRTE option means that the clip should be created if it does not exist.
5. Cue the clip for recording:
% CUER unit-name