MPEGGroup/FileFormat

Issues

• Clarification on HEIF (23008-12:2024) Amendment w24143 (Support for tone map derived image items and other improvements)

  #107 opened a month ago by maryla-uc
  1

• Definition of `cmin` property box

  #102 opened 3 months ago by farindk
  13

• Simplify Draft 'pymd' Box

  #100 opened 3 months ago by dukesook
  3

• Feedback on draft Amendment 3 for Image File Format

  #103 opened 3 months ago by bradh
  31

• Reducing metadata overhead, especially with tiled images

  #106 opened 2 months ago by farindk
  12

• Feedback on the w23988 "Low-overhead image file format" MPEG proposal for HEIF

  #104 opened 2 months ago by wantehchang
  5

• ImageGrid for very large image sizes

  #105 opened 2 months ago by farindk
  5

• Does iods require Object Descriptors to have ESDescriptors?

  #90 opened 8 months ago by bradh
  4

• Decoder initialization feedback

  #58 opened 2 years ago by cconcolato
  3

• Clarify how compressed metadata should work

  #61 opened 2 years ago by leo-barnes
  7

• audit of DIS 8th Ed for unregistered MIME fields

  #68 opened 2 years ago by mikedo
  1

• SampleAuxiliaryInformationOffsetsBox - allowed versions?

  #92 opened 7 months ago by bradh
  2

• Syntax for `payt` appears invalid

  #95 opened 7 months ago by bradh
  2

• Query on AVCConfigurationBox

  #97 opened 6 months ago by bradh
  0

• HEIF: How does `altr` groups interact with other groups?

  #84 opened 3 months ago by leo-barnes
  8

• Common Encryption should define brands for its features

  #71 opened 3 months ago by cconcolato
  1

• Gathering feedback on saiz extension. New version vs. new 4CC

  #99 opened 3 months ago by podborski
  4

• (CENC) Item auxiliary information box valid values

  #101 opened 3 months ago by bradh
  0

• On ItemReferenceBox version 1 in HEIF

  #87 opened 3 months ago by podborski
  1

• AuxiliaryTypeProperty syntax

  #88 opened 8 months ago by podborski
  2

• Some box definitions don't have quantity and mandatory

  #64 opened 2 years ago by cconcolato
  2

• Valid targets for `cdsc` reference type

  #82 opened 3 months ago by bradh
  6

• Clean Aperture semantics should be clarified

  #77 opened a year ago by cconcolato
  2

• deprecated IPMPControlBox

  #79 opened a year ago by podborski
  2

• Encrypted and restricted SampleEntry classes

  #80 opened a year ago by podborski
  1

• thmb item reference in track reference section

  #91 opened 3 months ago by bradh
  2

• Entity Groups require version and flags, but are not specified

  #93 opened 3 months ago by bradh
  3

• On item_name being a relative URL

  #94 opened 7 months ago by podborski
  5

• Typo in 14496-12:2022 - MetadataSampleEntry

  #89 opened 3 months ago by bradh
  2

• Semantics of "one picture" in HEIF

  #76 opened a year ago by bradh
  4

• Syntax for MovieFragmentRandomAccessBox (mfro)

  #96 opened 3 months ago by bradh
  1

• [NALU] OperatingPointRecord editorial issue

  #98 opened 3 months ago by bradh
  3

• HEIF: How to indicate that coded item contains floating-point

  #69 opened 3 months ago by leo-barnes
  9

• HEIF: How do we indicate that coded item contains RGB+alpha?

  #70 opened 3 months ago by leo-barnes
  9

• ISO/IEC 14496-12:2022 Clause 8.11.12 (Item reference box) uses referenceType and reference_type inconsistently

  #83 opened 3 months ago by wantehchang
  2

• Mismatch between colr information and bitstream information should be avoided

  #74 opened a year ago by cconcolato
  1

• HEIF needs a reduced header mode

  #59 opened 3 months ago by leo-barnes
  3

• Tracker for ISOMBFF-related C2PA issues

  #57 opened 3 months ago by cconcolato
  1

• HEIF: Signaling for subsampling

  #81 opened 3 months ago by leo-barnes
  4

• content_encoding for mski item

  #75 opened 8 months ago by farindk
  2

• ItemPropertyAssociationBox syntax re-uses loop variable

  #86 opened 10 months ago by bradh
  1

• .

  #85 opened 10 months ago by 3052
  1

• HEIF section 6.6.2.3.1 Image grid derivation Definition is contradictory

  #66 opened a year ago by y-guyon
  12

• MIAF should clarify behaviour of multiple EXIFs and XMPs

  #60 opened a year ago by leo-barnes
  3

• Codec brands disallow `colr` and `ispe` as essential properties

  #73 opened a year ago by leo-barnes
  3

• Is `jpgC` required for an item of type `jpeg`?

  #72 opened a year ago by leo-barnes
  2

• OperatingPointRecord (oinf) syntax issue

  #78 opened a year ago by bradh
  1

• Track reference definitions should use shall statements about the underlying track types

  #63 opened a year ago by cconcolato
  2

• Editor link for 23001-10 2nd is wrong

  #65 opened 2 years ago by timse7
  3

• DocumentStatus.md ideas

  #62 opened 2 years ago by podborski
  3