(registered 2019-09-03, last updated 2019-09-03) Media type name: image Media subtype name: jxsc Required parameters: None Optional parameters: None Encoding considerations: binary Codestreams are binary and should be transmitted in a suitable encoding without CR/LF conversion, 7-bit stripping etc.; base64 is a suitable encoding. Security considerations: JPEG XS codestreams contain structures of variable length and have an extensible syntax. Both of these aspects present potential security risks for implementations. In particular, variable length structures present buffer overflow risks and extensible syntax could result in the triggering of adverse actions. Interoperability considerations: The JPEG XS codestream does not contain information on the colourspace of the image. This information is implied or provided out-of-band. JPEG XS codestreams can conform to one of several profiles and levels of capabilities (as specified in ISO/IEC 21122-2) – not all of which may be supported by a receiving decoder. As a result, implementations may attempt to decode and display an encoded JPEG XS codestream only to determine that the image cannot be rendered either partially or in full. Published specifications: ISO/IEC 21122-3, Information technology – JPEG XS low-latency lightweight image coding system - Part 3: Transport and container formats Applications: Multimedia, Imaging, Pictures, Scientific. Fragment identifier considerations: None Restrictions on usage: None Additional information: Deprecated alias names for this type: N/A Magic number(s): Starts with the 4-byte string 0xFF10 FF50 as specified in ISO/IEC 21122-1. File extension(s): jxsc Macintosh file type code: N/A Object Identifiers: N/A Intended usage: Common Contact name: ISO/IEC JTC 1/SC 29/WG 1 Convenor Contact email address: sc29-sec&itscj.ipsj.or.jp Author/Change controller: ISO/IEC JTC1 SC29 WG1