Grass Valley GV STRATUS v.3.1 - Manual (Page 303)

Support Mechanism
Yes Export
With a special export option, you can export a completed continuous (loop) record clip as MXF or
QuickTime, with the result being a flattened stream file. Recording must be complete before you
export the clip, however you can make sub-clips while record is underway and export the sub-clips.
For this feature, MPEG-2 long GoP is not supported.
MXF export behavior on K2 systems
Upon MXF export the K2 system checks clip structure for specifications as they apply to industry
standard formats such as XDCAM and eVTR style D10AES3. If specifications match, the media is
exported as the appropriate format.
The K2 system allows you to configure channels so that they no longer match the specifications for
the industry-standard format. For example, you can add audio tracks to exceed the “# of Audio
Tracks” specification for a D10AES3 channel. If you alter a clip in this way, on MXF export the
K2 system exports the clip as MXF OP 1A but it is not the same eVTR style of MXF.
MXF Export Type
When importing and exporting MXF the K2 system behaves as follows, in relation to the MXF
Export Type setting in K2Config or in K2 AppCenter:
• The MXF Export Type setting applies to all MXF exports on the K2 system. There is one setting
for one K2 system. The K2 system can be a stand-alone K2 Summit/Solo system or a K2 SAN.
If a K2 SAN, the one setting applies to the K2 Media Server with role of FTP server that handles
exports for all SAN-attached K2 Summit systems.
• For export, the K2 system must be set to one of the following MXF Export Types:
• SMPTE 377M
• SMPTE 377-1
• By default the K2 system is set to SMPTE 377M.
• The SMPTE 377M setting is recommended for compatibility with older systems which do not
support SMPTE 377-1.
• The following formats do not support SMPTE 377-1 export. Therefore these formats are always
exported as SMPTE 377M, regardless of the MXF Export Type setting:
• XDCAM HD clips with XDCAM HD/EX/HD422 compatible video
• D10 media
• For import, both SMPTE 377M and 377-1 are supported at all times, regardless of the MXF
Export Type setting. The MXF Export Type setting affects export only.
•
QuickTime interchange specification
This specification applies to QuickTime file transfer, import, and export on K2 Summit, Solo, and
SAN systems.
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Specifications