BS ISO 21077:2021 pdf download.Space data and information transfer systems — Digital motion imagery.
1.2 APPLICABILITY
This document is a CCSDS Recommended Standard. It is intended for all missions that produce, consume, or transcode video imagery from low-bandwidth video such as web streaming through high-bandwidth video such as high-definition television imagery.
1.3 NOMENCLATURE
1.3.1 NORMATIVE TEXT
The following conventions apply for the normative specifications in this Recommended
Standard:
a) the words ‘shall’ and ‘must’ imply a binding and verifiable specification;
b) the word ‘should’ implies an optional, but desirable, specification;
c) the word ‘may’ implies an optional specification;
d) the words ‘is’, ‘are’, and ‘will’ imply statements of fact.
NOTE – These conventions do not imply constraints on diction in text that is clearly
informative in nature.
1.3.2 INFORMATIVE TEXT
In the normative sections of this document, informative text is set off from the normative
specifications either in notes or under one of the following subsection headings:
– Overview;
– Background;
– Rationale;
– Discussion.
3.2 GENERAL
Users shall select from the following interfaces and standards when designing and
implementing new video systems for spacecraft.
3.3 INTERFACE STANDARDS
3.3.1 NON-COMPRESSED STANDARD DEFINITION TELEVISION SIGNALS
The interface for non-compressed Standard Definition (SD) television signals shall be Serial
Digital Interface (SDI), conforming to
– ITU-R BT.601-7 (reference [1]);
– SMPTE ST 259:2008 (reference [2]).
3.3.2 NON-COMPRESSED HIGH DEFINITION TELEVISION SIGNALS
The interface used for non-compressed high definition television signals shall be one of the
following:
– High Definition-Serial Digital Interface (HD-SDI), conforming to
• ITU-R BT.1120-8 (reference [3]);
• SMPTE ST 292-1:2012 (reference [4]);
– High Definition Multimedia Interface (HDMI) 1.4 or higher, as defined by the HDMI
Founders and licensed by HDMI Licensing, LLC (reference [5]);
– Camera Link Low Voltage Differential Signaling (LVDS) Interface Standard, as
defined by the Camera Link Participating Companies (reference [6]).
3.3.4.1 Television time code and metadata may be inserted in non-compressed video. If
time codes and/or metadata are inserted into non-compressed video, one of the following
standards shall be used:
– ITU-R BT.653-3 (reference [9]);
– SMPTE ST 12-1:2008 (reference [10]);
– SMPTE ST 12-2:2008 (reference [11]);
– SMPTE ST 291:2011 (reference [12]);
– SMPTE ST 292-1-2012 (reference [4]);
– SMPTE ST 334-1:2007 (reference [13]);
– SMPTE ST 335:2012 (reference [14]);
– SMPTE RP 210.10:2007 (reference [15]);
– SMPTE ST 2036-3:2012 (reference [16]).
3.4.1.4 Situational Awareness
Situational awareness video resolution should be selected from the following range:
– 640 × 480 to 1280 × 720, bandwidth dependent:
• interlace scan for legacy SD systems shall conform to
▫ ITU-R BT.601-7 (reference [1]); or
▫ SMPTE ST 259:2008 (reference [2]);
• progressive scan for HD systems shall conform to
▫ ITU-R BT.1543 (reference [17]); or
▫ SMPTE ST 296:2011 (reference [18]).BS ISO 21077 pdf download.