Grass Valley K2 System Guide v.9.0 - Manual (Page 121)

• Pinnacle servers preserve non-MPEG-1 (Musicam) audio as Pinnacle-private elementary streams
within the program stream
std file. Pinnacle clips allow up to 8 channels of audio. On import
the K2 system detects the private stream audio packets when they are present and generates the
appropriate K2 audio track(s).
• When importing Pinnacle content recorded as an MPEG1 system stream, any Pinnacle-private
audio from MPEG2 program stream based clips is lost.
• The K2 system supports extraction of the following kinds of Pinnacle-private audio:
• PCM-16, PCM-20 (PCM-20 is converted into PCM-24 on import)
• DolbyE and AC-3
• If you enable the option via registry key, the K2 system examines specific VBI lines when it
detects Pinnacle-private VBI lines, as follows:
• Line 21 (default, can be overridden via registry) is examined for the presence of close
captioning or SDP teletext. If detected, this is appropriately de-modulated into EIA-608 close
caption or OP-47 subtitling packets and inserted as ancillary data packets into an ancillary
data track on the imported clip.
• Line 19-PAL and 14-NTSC (default, can be overridden via registry) is examined for the
presence of VITC. If detected, this is appropriately de-modulated into SMPTE 12M compliant
time-code values which is inserted as time-code values into the time-code track on the imported
clip.
• The following applies to the Pinnacle emulation K2 FTP import:
• All supported FTP commands, with the exception of those mentioned below, respond as they
do for a conventional K2 FTP session. For instance, commands such as renames and deletes
operate on K2 clips, directory listings reveal K2 clips and bins, and so on.
• Navigation ( cd ) to K2 bins is allowed. By default, the default K2 bin is projected as the
FTP root.
• The MKD/XMKD command does not create a K2 bin for the argument specified, but merely
retains the argument as the name of the K2 clip to be created based on following STOR
commands.
• The CWD/XCWD command does not allow navigation to a K2 bin. If the Pinnacle clip name
used in a previous MKD command is used as an argument to CWD , the K2 FTP server does
not internally navigate to that “bin”, but rather merely returns a success status.
• The STOR command only honors ft , std , or header as arguments, or filenames with a . mxf
extension. When the K2 FTP server receives data for the
std
file it creates a K2 clip with the
name issued by a previous MKD/XMKD command.
Compressed VBI import
The K2 system can be set up to import Standard Definition (SD) Compressed VBI closed captioning.
The feature can be useful for workflows that include SD clips from Profile XP and other video
servers, or for facilities transitioning from SD to HD. If you are interested in this feature, contact
Grass Valley Support to determine if it is appropriate for your system design. If appropriate, Grass
Valley Support can provide you with the instructions to enable the feature.
06 November 2012 K2 System Guide 121
Import/export services