Type name: video Subtype name: jxsv Required parameters: rate: The RTP timestamp clock rate. Applications using this payload format SHALL use a value of 90000. packetmode: This parameter specifies the configured packetization mode as defined by the pacKetization mode (K) bit in the payload header of Section 4.3 of RFC 9134. This value SHALL be equal to the K-bit value configured in the RTP stream (i.e., 0 for codestream or 1 for slice). Optional parameters: transmode: This parameter specifies the configured transmission mode as defined by the Transmission mode (T) bit in the payload header of Section 4.3 of RFC 9134. If specified, this value SHALL be equal to the T-bit value configured in the RTP stream (i.e., 0 for out-of-order-allowed or 1 for sequential-only). If not specified, a value 1 (sequential-only) SHALL be assumed and the T bit SHALL be set to 1. profile: The JPEG XS profile [ISO21122-2] in use. Any white space Unicode character in the profile name SHALL be omitted. Examples of valid profile names are 'Main444.12' or 'High444.12'. level: The JPEG XS level [ISO21122-2] in use. Any white space Unicode character in the level name SHALL be omitted. Examples of valid levels are '2k-1' or '4k-2'. sublevel: The JPEG XS sublevel [ISO21122-2] in use. Any white space Unicode character in the sublevel name SHALL be omitted. Examples of valid sublevels are 'Sublev3bpp' or 'Sublev6bpp'. depth: Determines the number of bits per sample. This is an integer with typical values including 8, 10, 12, and 16. width: Determines the number of pixels per line. This is an integer between 1 and 32767, inclusive. height: Determines the number of lines per video frame. This is an integer between 1 and 32767, inclusive. exactframerate: Signals the video frame rate in frames per second. Integer frame rates SHALL be signaled as a single decimal number (e.g., "25") whilst non-integer frame rates SHALL be signaled as a ratio of two integer decimal numbers separated by a "forward-slash" character (e.g., "30000/1001"), utilizing the numerically smallest numerator value possible. interlace: If this parameter name is present, it indicates that the video is interlaced, or that the video is Progressive segmented Frame (PsF). If this parameter name is not present, the progressive video format SHALL be assumed. segmented: If this parameter name is present, and the interlace parameter name is also present, then the video is a Progressive segmented Frame (PsF). Signaling of this parameter without the interlace parameter is forbidden. sampling: Signals the color difference signal sub-sampling structure. Signals utilizing the non-constant luminance Y'C'B C'R signal format of [BT.601-7], [BT.709-6], [BT.2020-2], or [BT.2100-2] SHALL use the appropriate one of the following values for the Media Type Parameter "sampling": YCbCr-4:4:4 (4:4:4 sampling) YCbCr-4:2:2 (4:2:2 sampling) YCbCr-4:2:0 (4:2:0 sampling) Signals utilizing the Constant Luminance Y'C C'BC C'RC signal format of [BT.2020-2] SHALL use the appropriate one of the following values for the Media Type Parameter "sampling": CLYCbCr-4:4:4 (4:4:4 sampling) CLYCbCr-4:2:2 (4:2:2 sampling) CLYCbCr-4:2:0 (4:2:0 sampling) Signals utilizing the constant intensity I CT CP signal format of [BT.2100-2] SHALL use the appropriate one of the following values for the Media Type Parameter "sampling": ICtCp-4:4:4 (4:4:4 sampling) ICtCp-4:2:2 (4:2:2 sampling) ICtCp-4:2:0 (4:2:0 sampling) Signals utilizing the 4:4:4 R' G' B' or RGB signal format (such as that of [BT.601-7], [BT.709-6], [BT.2020-2], [BT.2100-2], [SMPTE2065-1], or [SMPTE2065-3]) SHALL use the following value for the Media Type Parameter "sampling": RGB (RGB or R' G' B' samples) Signals utilizing the 4:4:4 X' Y' Z' signal format (such as defined in [SMPTE428-1]) SHALL use the following value for the Media Type Parameter "sampling": XYZ (X' Y' Z' samples) Key signals as defined in [SMPTE157] SHALL use the value key for the Media Type Parameter "sampling". The key signal is represented as a single component: KEY (Samples of the key signal) Signals utilizing a color sub-sampling other than what is defined here SHALL use the following value for the Media Type Parameter "sampling": UNSPECIFIED (Sampling signaled by the payload) colorimetry: Specifies the system colorimetry used by the image samples. Valid values and their specification are the following: BT601-5: [BT.601-5]. BT709-2: [BT.709-2]. SMPTE240M: [SMPTE240M]. BT601: [BT.601-7]. BT709: [BT.709-6]. BT2020: [BT.2020-2]. BT2100: [BT.2100-2], Table 2 titled "System colorimetry". ST2065-1: Academy Color Encoding Specification (ACES) [SMPTE2065-1]. ST2065-3: Academy Density Exchange Encoding (ADX) [SMPTE2065-3]. XYZ: [ISO11664-1], section titled "1931 Observer". UNSPECIFIED: Colorimetry is signaled in the payload by the color specification box of [ISO21122-3], or it must be manually coordinated between sender and receiver. Signals utilizing the [BT.2100-2] colorimetry SHOULD also signal the representational range using the optional parameter RANGE defined below. Signals utilizing the UNSPECIFIED colorimetry might require manual coordination between the sender and the receiver. TCS: Transfer Characteristic System. This parameter specifies the transfer characteristic system of the image samples. Valid values and their specification are the following: SDR: Standard Dynamic Range video streams that utilize the Optical Electrical Transfer Function (OETF) of [BT.709-6] or [BT.2020-2]. Such streams SHALL be assumed to target the Electro- Optical Transfer Function (EOTF) specified in [BT.1886-0]. PQ: High dynamic range video streams that utilize the Perceptual Quantization system of [BT.2100-2]. HLG: High dynamic range video streams that utilize the Hybrid Log-Gamma system of [BT.2100-2]. UNSPECIFIED: Video streams whose transfer characteristics are signaled by the payload as specified in [ISO21122-3], or that must be manually coordinated between sender and receiver. RANGE: This parameter SHOULD be used to signal the encoding range of the sample values within the stream. When paired with [BT.2100-2] colorimetry, this parameter has two allowed values, NARROW and FULL, corresponding to the ranges specified in TABLE 9 of [BT.2100-2]. In any other context, this parameter has three allowed values: NARROW, FULLPROTECT, and FULL, which correspond to the ranges specified in [SMPTE2077]. In the absence of this parameter, and for all but the UNSPECIFIED colorimetry, NARROW SHALL be the assumed value. When paired with the UNSPECIFIED colorimetry, FULL SHALL be the default assumed value. Encoding considerations: This media type is framed in RTP and contains binary data; see Section 4.8 of [RFC6838]. Security considerations: See the Security Considerations section of RFC 9134. Interoperability considerations: None Published specification: See the References section of RFC 9134. Applications that use this media type: Any application that transmits video over RTP (like SMPTE ST 2110). Fragment identifier considerations: N/A Additional information: None Person & email address to contact for further information: T. Bruylants and T. Richter . Intended usage: COMMON Restrictions on usage: This media type depends on RTP framing; hence, it is only defined for transfer via RTP [RFC3550]. Author: See the Authors' Addresses section of RFC 9134. Change controller: IETF Audio/Video Transport Working Group delegated from the IESG. Normative References: [ISO21122-2] ISO/IEC, "Information technology - JPEG XS low-latency lightweight image coding system - Part 2: Profiles and buffer models", ISO/IEC IS 21122-2. [ISO21122-3] ISO/IEC, "Information technology - JPEG XS low-latency lightweight image coding system - Part 3: Transport and container formats", ISO/IEC IS 21122-3. Informative References: [BT.1886-0] ITU-R, "Reference electro-optical transfer function for flat panel displays used in HDTV studio production", ITU-R Recommendation BT.1886-0, March 2011, . [BT.2020-2] ITU-R, "Parameter values for ultra-high definition television systems for production and international programme exchange", ITU-R Recommendation BT.2020-2, October 2015, . [BT.2100-2] ITU-R, "Image parameter values for high dynamic range television for use in production and international programme exchange", ITU-R Recommendation BT.2100-2, July 2018, . [BT.601-5] ITU-R, "Studio encoding parameters of digital television for standard 4:3 and wide screen 16:9 aspect ratios", ITU-R Recommendation BT.601-5, October 1995, . [BT.601-7] ITU-R, "Studio encoding parameters of digital television for standard 4:3 and wide screen 16:9 aspect ratios", ITU-R Recommendation BT.601-7, March 2011, . [BT.709-2] ITU-R, "Parameter values for the HDTV standards for production and international programme exchange", ITU-R Recommendation BT.709-2, October 1995, . [BT.709-6] ITU-R, "Parameter values for the HDTV standards for production and international programme exchange", ITU-R Recommendation BT.709-6, June 2015, . [ISO11664-1] ISO/CIE, "Colorimetry - Part 1: CIE standard colorimetric observers", ISO/CIE IS 11664-1:2019, June 2019, . [SMPTE157] SMPTE, "SMPTE Recommended Practice - Key and Alpha Signals", SMPTE RP 157:2012, DOI 10.1109/ICPST.1998.729044, November 2012, . [SMPTE2065-1] SMPTE, "SMPTE Standard - Academy Color Encoding Specification (ACES)", SMPTE ST 2065-1:2021, DOI 10.5594/SMPTE.ST2065-1.2021, January 2021, . [SMPTE2065-3] SMPTE, "SMPTE Standard - Academy Density Exchange Encoding (ADX) - Encoding Academy Printing Density (APD) Values", SMPTE ST 2065-3:2020, DOI 10.5594/SMPTE.ST2065-3.2020, November 2020, . [SMPTE2077] SMPTE, "SMPTE Recommended Practice - Full-Range Image Mapping", SMPTE RP 2077:2013, DOI 10.5594/SMPTE.RP2077.2013, November 2013, [SMPTE428-1] SMPTE, "SMPTE Standard - D-Cinema Distribution Master - Image Characteristics", SMPTE ST 428-1:2019, DOI 10.5594/SMPTE.ST428-1.2019, March 2019, .