IEC TR 62712:2011 pdf – Professional tape-less camera recorder.
3 GuIdeline for standardization
3.1 Summary of current Issues
— Recordrng media
Since the specifications of recording meoia usea in eacn t*tODUCI are not disciosea. tfley cannot be referred to as normative reference.
— Specificabon of PRODUCT-D
The format of PRODUCT-D is widely used for camera recorders but the specification is defined in a certain alliance association and not disclosed in general.
– File format of PRODUCT-B and PRODUCT-G
Since both file formats of PRODUCT-B and PRODUCT-G are not defined in any standard
bodies, they cannot be referred to as normative reference.
It is clarified that some specifications cannot be referred to in international standards because they are not publicly available or not defined as a standard. Although it is desirable to standardize such specifications, it depends on the decision of each manufacturer or association whether they wish to disclose the specification or not.
3.2 Proposed guideline for standardization
3.2.1 Product based standardization
In order to define the specification of professional tape-less Camera recorders on a product basis, recording media Is a fundamental element for the document suite such as a video cassette for a video tape recorder (VTR) standard.
As described in 2.1. however, the fundamental issue is that currently not all the specifications on recording media used for professional tape-less camera recorders are disclosed. The possibility of the product-based standardization therefore depends on whether the specifications of recording media will be publicly available as standards or rot.
3.2,2 Essence technology based standardization
Another proposal is based on essence technologies adopted in each professional tape-less camera recorder. File format is one essential element to ensure the interoperability of various types of content between other equipment handling contenL For example, since it is confirmed that the MXF file format is widely supported for professional tape-less camera recorders, defining specifications by focusing on the MXF file format is recommended. In this case, the following two possibilities should be considered:
— to standardize the MXF specification In IEC for professional tape-less camera recorders:
— to develop documents on professional tape-less camera recorders supporting the MXF file format.
A PRODUCT list based on the MXF file format is shown in Table 13. As shown below, since all the specifications adopted in each PRODUCT refer to standardized documents, it is possible to create relevant IEC standards or documents by normatively referencing such source documents.
4 ConclusIon
This Technical Report provides the results of (he survey on existing professional tape-less camera recorder products and also includes a guideline on the possibilities of standardizations for professional tape-less camera recorders
As a result of investigating the current situation, it is confirmed that developing IEC documents relevant to professional tape-less camera recorders would be possible by specifying the scope of the standardization. For example, it is possible to standardize essential technologies adopted in professional tape-less camera recorders such as file format and related elements such as codec and metadata. It is desirable to specify essential technologies of professional tape-less camera recorders to ensure compatibility with other equipment on a file basis, In addition, in order to standardize on a product basis, it is necessary that the specification of recording media adopted in professional tape-less camera recorders will be publicly available as standard.