What's new in MediaConch
(and MediaInfo)
Implementation and policy checker
Jérôme Martinez, MediaArea
No Time to Wait 7, November 2023
What is MediaConch?
Implementation and policy checker, reporter
The past
- Started in 2015 with European Union funding.
- Initial focus was on open source formats
(MKV/FFV1/PCM).
- Other companies selected for PDF and TIFF.
- Also the start of IETF Working Group for MKV/FFV1/FLAC standardization.
- Also the start of NTTW.
MediaConch latest developments (2023)
- Different levels of logging (error/warning/info)
- Fully online version (no file upload) for embeding in your website
- Better support of several audio tracks
("all" or "any" policy rules)
- xHE-AAC/USAC full implementation checker
- Superfast option: parsing only the header
MediaInfo latest developments (2023)
Focus on MPEG-7 output:
- Support of collections (for DVD Video)
- 3 modes (strict, relaxed*, extended*)
- More sub-termIDs (AudioPresentationCS)
- More PublicIdentifiers
- More sub-termIDs (MP4, WAV, AVC, ProRes)
* Not always standard...
Sponsored by Bibliothèque Nationale de France (French national library)
MediaInfo latest developments (2023)
Others:
- ISO 9660 native support (focused on DVD Video)
- More HDR formats (SMPTE ST 2094-10, HDR Vivid)
- Time code in MKV, AVC & HEVC
- Extract of all time codes from a file, XML format (currrently only for for MXF)
- APT-X100 a.k.a. Cinema DTS
- N19/STL & WebVTT: more details (start/end timestamp, max count of lines, total count of lines, ...)
- S-ADM in MGA in MXF, AAC in MXF
Not only about software
(2023)
Dedicated webpage for MediaInfo field names
Mapping to MPEG-7/PBCore/EBUCore and comparison of theses output formats
Sponsored by Bibliothèque Nationale de France
Current developments
(2024)
- Comparison operations between properties across tracks
- ADM full implementation checker
- MXF partial implementation & policy checker
focused on issues from broadcasters
- Check of MXF & MKV time code discontinuities
- SMPTE ST 436 VBI parsing for catching VITC & Line 21
- More options for probing caption presence in MXF
- Report of MediaConch errors also in MediaInfo
And beyond?
- It depends on you.
- What are your needs?