User`s guide

8 007-4403-003

1: Overview of the SGI Media Server

Table 1-1 summarizes the support for the various ﬁle formats and compression types.

1. Playout of ﬁles either natively recorded or received from another device through

FTP.

2. For information on limitations of long GOP support, see the VST release notes.

3. IMX is Sony’s constant-byte GOP recording format based on D10 and generates a

format compatible with IMX VTR decks. Only one of the compression schemes IMX

and I-frame VBR is supported at the same time on IMX-record-enabled boards. For

playout, both IMX and I-frame VBR are supported simultaneously.

4. The PCI-VIDAUD-MSB-C card does not support DIF DVCPRO 50 and MXF

DVCPRO 50 recording or playback. The PCI-VIDAUD-IMX-C card is now required

for these ﬁle formats. Please note that the PCI-VIDAUD-MSB-B and

PCI-VIDAUD-IMX cards still support DIF DVCPRO 50 and MXF DVCPRO 50

recording and playback with VST 2.2.1.

5. An SGI ofﬂine utility converts SGI native MPEG-2 ﬁles (including long GOP) into

SMPTE 360M format ﬁles for transferring to other devices in this ﬁle format.

Table 1-1 Support for File Formats and Compression Types

File Format Video Compression Native Record Playout

Native SGI MPEG-2 long GOP

MPEG2 I-frame

IMX30/40/50

Yes

MXF IMX30/40/50

DVCPRO 25

DVCPRO 50

Yes

DIF DVCPRO 25

DVCPRO 50

DVCAM

(16-bit/48 Khz audio

only)

Yes

SMPTE 360M MPEG2 I-frame

Yes