Type name
   video

Subtype name
   jpeg2000-scl

Required parameters
   None

Optional parameters
   pixel
      Specifies the pixel format used by the video sequence.

      The parameter MUST be a URI-reference as specified in
      [RFC3986].

      If the parameter is a relative-ref as specified in [RFC3986],
      then it MUST be equal to one of the pixel formats specified in
      Table 4 and the RTP header and payload MUST conform with the
      characteristics of that pixel format.

      If the parameter is not a relative-ref, the specification of
      the pixel format is left to the application that defined the
      URI.

      If the parameter is not specified, the pixel format is
      unspecified.

   sample
      Specifies the format of the samples in each component of the
      codestream.

      The parameter MUST be a URI-reference as specified in
      [RFC3986].

      If the parameter is a relative-ref as specified in [RFC3986],
      then it MUST be equal to one of the formats specified in
      Appendix C and the stream MUST conform with the characteristics
      of that format.

      If the parameter is not a relative-ref, the specification of
      the sample format is left to the application that defined the
      URI.

      If the parameter is not specified, the sample format is
      unspecified.

   width
      Maximum width in pixels of each image.  Integer between 0 and
      4,294,967,295.

      The parameter MUST be a sequence of 1 or more digits.

      If the parameter is not specified, the maximum width is
      unspecified.

   height
      Maximum height in pixels of each image.  Integer between 0 and
      4,294,967,295.

      The parameter MUST be a sequence of 1 or more digits.

      If the parameter is not specified, the maximum height is
      unspecified.

   signal
      Specifies the sequence of image types.

      The parameter MUST be a URI-reference as specified in
      [RFC3986].

      If the parameter is a relative-ref as specified in [RFC3986],
      then it MUST be equal to one of the signal formats specified in
      Appendix B and the image sequence MUST conform to that signal
      format.

      If the parameter is not a relative-ref, the specification of
      the pixel format is left to the application that defined the
      URI.

      If the parameter is not specified, the stream consists of an
      arbitrary sequence of image types.

   caps
      The parameter contains a list of sets of constraints to which
      the stream conforms, with each set of constraints identified
      using an absolute-URI defined by an application.

      The parameter MUST conform to the uri-list syntax expressed
      using ABNF ([RFC5234]):

        uri-list = absolute-URI *(";" absolute-URI)

      The application that defines the absolute-URI MUST ensure that
      it does not contain any ";" character and MUST associate it
      with a set of constraints to which the stream conforms.  Such
      constraints can, for example, include the maximum height and
      width of images.

      If the parameter is not specified, constraints, beyond those
      specified in this document, are unspecified.

   cache
      The value of the parameter MUST be either false or true.

      If the parameter is true, the field C MAY be 0 or 1; otherwise
      the field C MUST be 0.

      If the parameter is not specified, then the parameter is equal
      to false.

Encoding considerations
   This media type is framed and binary, see Section 4.8 of
   [RFC6838].

Security considerations
   JPEG 2000 is a flexible image format.  As a result, the size of
   the memory structures required to process JPEG 2000 images can
   vary greatly depending on the characteristics of the image and the
   encoding parameters.  For example, the JPEG 2000 syntax allows
   image height and width up to 2^32 - 1 pixels, which is also
   captured in the syntax of the height and width parameters of the
   media type specified at Section 9.2.  Implementations SHOULD
   therefore take care when processing input that influences the size
   of memory structures, and SHOULD fail gracefully when resource
   constraints are exceeded.

See also RFC-ietf-avtcore-rtp-j2k-scl-08, Section 13.

Interoperability considerations
   The RTP stream is a sequence of JPEG 2000 images.  An
   implementation that conforms to the family of JPEG 2000 standards
   can decode and attempt to display each image.

Published specification
   RFC-ietf-avtcore-rtp-j2k-scl-08

Applications that use this media type
   video streaming and communication

Person and email address to contact for further information
   Pierre-Anthony Lemieux <pal&sandflow.com>

Intended usage
   COMMON

Restrictions on Usage
   This media type depends on RTP framing, and hence is only defined
   for use with RTP as specified at [RFC3550].  Transport within
   other framing protocols is not defined at the time.

Author
   Pierre-Anthony Lemieux (mailto:pal&sandflow.com)

Change controller
   IETF