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. 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. 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 in use, as specified in [ISO21122-2]. Any white space Unicode character in the profile name SHALL be omitted. Examples of valid profile names include 'Main444.12', 'High444.12', 'CHigh444.12', and 'TDC444.12'. When present, this parameter SHALL identify the same JPEG XS profile as the one signaled in the JPEG XS picture segment. level: The JPEG XS level in use, as specified in [ISO21122-2]. Any white space Unicode character in the level name SHALL be omitted. Examples of valid levels are '2k-1' or '4k-2'. When present, this parameter SHALL identify the same JPEG XS level as the one signaled in the JPEG XS picture segment. sublevel: The JPEG XS sublevel in use, as specified in [ISO21122-2]. Any white space Unicode character in the sublevel name SHALL be omitted. Examples of valid sublevels are 'Sublev3bpp' or 'Sublev6bpp'. When present, this parameter SHALL identify the same JPEG XS sublevel as the one signaled in the JPEG XS picture segment. fbblevel: The JPEG XS frame buffer bandwidth (FBB) level in use, as specified in [ISO21122-2], when using the TDC coding mode. Any white space Unicode character in the fbblevel name SHALL be omitted. Examples of valid frame buffer bandwidth levels are 'Fbblev3bpp' or 'Fbblev12bpp'. This parameter SHALL only be present when the TDC coding mode is used. When present, this parameter SHALL identify the same JPEG XS fbblevel as the one signaled in the JPEG XS picture segment. depth: Determines the number of bits per sample. This is an integer with typical values including 8, 10, 12, and 16. When present, this parameter SHALL match the information signaled in the JPEG XS picture segment. width: Determines the number of pixels per line. This is an integer between 1 and 32767, inclusive. When present, this parameter SHALL match the information signaled in the JPEG XS picture segment. height: Determines the number of lines per video frame. This is an integer between 1 and 32767, inclusive. For interlaced and PsF video streams, this parameter signals the number of lines of the entire displayed video frame, which is twice the height signaled in each JPEG XS codestream header. When present, this parameter SHALL be consistent with the information signaled in the JPEG XS picture segment. 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. When present, this parameter SHALL identify the same frame rate as the one signaled in the JPEG XS picture segment. interlace: If this parameter name is present, it indicates that the video stream is interlaced or Progressive segmented Frame (PsF) (see Section 3.4). If the segmented parameter name is also present, the video stream is Progressive segmented Frame (PsF); otherwise, it is interlaced. If the interlace parameter name is not present, the video stream SHALL be assumed to be progressive. segmented: If this parameter name is present, and the interlace parameter name is also present, then the video stream is Progressive segmented Frame (PsF). Signaling of this parameter name without the interlace parameter name is forbidden. sampling: Specifies the color difference signal subsampling structure. Valid values and their specification are the following: For signals utilizing the non-constant luminance Y'C'B C'R signal format of [BT601-7], [BT709-6], [BT2020-2], or [BT2100-3]: YCbCr-4:4:4 (4:4:4 sampling) YCbCr-4:2:2 (4:2:2 sampling) YCbCr-4:2:0 (4:2:0 sampling) For signals utilizing the constant luminance Y'C C'BC C'RC signal format of [BT2020-2]: CLYCbCr-4:4:4 (4:4:4 sampling) CLYCbCr-4:2:2 (4:2:2 sampling) CLYCbCr-4:2:0 å(4:2:0 sampling) For signals utilizing the constant intensity I CT CP signal format of [BT2100-3]: 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 [BT601-7], [BT709-6], [BT2020-2], [BT2100-3], [SMPTE2065-1], or [SMPTE2065-3]) SHALL use the following value for the Media Type Parameter "sampling": RGB (RGB or R' G' B' samples) For signals utilizing the 4:4:4 X' Y' Z' signal format (such as defined in [SMPTE428-1]): XYZ (X' Y' Z' samples) For single-component key signals (such as defined in [SMPTE157]): KEY (Samples of the key signal) Signals utilizing a color subsampling 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 video samples. Valid values and their specification are the following: BT601-5: [BT601-5]. BT709-2: [BT709-2]. SMPTE240M: [SMPTE240M]. BT601: [BT601-7]. BT709: [BT709-6]. BT2020: [BT2020-2]. BT2100: [BT2100-3], 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 SHALL either be signaled in the payload by the Color Specification box of [ISO21122-3], or be manually coordinated between sender and receiver. Signals utilizing the [BT2100-3] 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 video samples. Valid values and their specification are the following: SDR: Standard Dynamic Range video streams that utilize the Optical Electrical Transfer Function (OETF) of [BT709-6] or [BT2020-2]. Such streams SHALL be assumed to target the Electro-Optical Transfer Function (EOTF) specified in [BT1886-0]. PQ: High dynamic range video streams that utilize the Perceptual Quantization system of [BT2100-3]. HLG: High dynamic range video streams that utilize the Hybrid Log-Gamma system of [BT2100-3]. UNSPECIFIED: Video streams whose transfer characteristics SHALL either be signaled by the payload as specified in [ISO21122-3], or 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 [BT2100-3] colorimetry, this parameter has two allowed values, NARROW and FULL, corresponding to the ranges specified in Table 9 of [BT2100-3]. 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 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-ietf-avtcore-rtp-jpegxs-3ed-08]. Interoperability considerations: None Published specification: See the References section of [RFC-ietf-avtcore-rtp-jpegxs-3ed-08]. 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 rtp&intopix.com and T. Richter jpeg-xs-techsupport&iis.fraunhofer.de. 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-ietf-avtcore-rtp-jpegxs-3ed-08]. 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: [BT2100-3] ITU-R, "Parameter values for ultra-high definition television systems for production and international programme exchange", ITU-R Recommendation BT.2020-2, October 2015, . [ISO11664-1] ISO/CIE, "Colorimetry - Part 1: CIE standard colorimetric observers", ISO/CIE IS 11664-1:2019, June 2019, . [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, [SMPTE240M] SMPTE, "SMPTE Standard - For Television - 1125-Line High- Definition Production Systems - Signal Parameters", SMPTE ST 240M:1999, DOI 10.5594/SMPTE.ST240.1999, November 1999, . [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, .