(registered 2017-12-08, last updated 2017-12-11) Name: Lars Borg Email: borg&adobe.com Media type name: image Media subtype name: aces Required parameters: none Optional parameters: none Encoding considerations: binary Security considerations: ACES Image Container files utilize a structure which can store image data and attributes of this image data. The fields defined in the ACES Image Container specification are of a descriptive nature and provide information that is useful to facilitate the viewing and rendering of images by a recipient, along with additional metadata not required for viewing and rendering, but which may be helpful in the use of the image in the context of a larger project, such as the accomplishment of a motion picture or television project. As such, the fields currently defined in the ACES Image Container specification do not in themselves create additional security risks, since the fields are not used to induce any particular behavior by the recipient application. The format does not contain executable code, scripts, or macros. The format contains offset values and count values, which can trigger segmentation faults in applications. The image is not compressed, and the compression attribute is set to No Compression. The format does not include encryption, or other forms of privacy protection. If needed, such would have to be provided externally. The format includes optional MD5 digests for verifying the integrity of metadata and image data. Interoperability considerations: ACES Image Container files are scene-referred. Published specification: The ACES Image Container is defined by SMPTE ST 2065-4:2013, "ACES Image Container File Layout" published in 2013 by Society of Motion Picture and Television Engineers (SMPTE) White Plains Plaza 445 Hamilton Ave, Ste 601 White Plains, NY 10601-1827 phone: (914) 761-1100 Available online via http://ieeexplore.ieee.org/servlet/opac?punumber=7290439 https://doi.org/10.5594/SMPTE.ST2065-4.2013 Applications which use this media: Film and Television production and post-production applications, including but not limited to on-set or near-set color correction, editorial, visual effects, and finishing. Fragment identifier considerations: none Restrictions on usage: none Provisional registration? (standards tree only): N/A Additional information: 1. Deprecated alias names for this type: N/A 2. Magic number(s): The first 8 bytes (fields magic number and version) are 76 2F 31 01 02 00 00 00 or 76 2F 31 01 02 04 00 00. The attribute acesImageContainerFlag has value 1. 3. File extension(s): exr 4. Macintosh file type code: N/A 5. Object Identifiers: N/A General Comments: ACES images can be stand-alone files or wrapped in container files such as MXF or AXF. Person to contact for further information: 1. Name: Howard Lukk 2. Email: hlukk&smpte.org Intended usage: Common Film and Television production and post-production, including but not limited to on-set or near-set color correction, editorial, visual effects, and finishing. Author/Change controller: Howard Lukk Director of Standards Society of Motion Picture and Television Engineers (SMPTE) White Plains Plaza 445 Hamilton Ave, Ste 601 White Plains, NY 10601-1827 +1 914 761 1100 hlukk&smpte.org