search

AOMediaCodec / iamf

Immersive Audio Model and Formats
https://aomediacodec.github.io/iamf/
79 stars 15 forks source link

Define Basic Encapsulation Scheme for multi-track approach #56

Open sunghee-hwang opened 2 years ago

sunghee-hwang commented 2 years ago

Is it practically possible to have a track with no sample data? For example, we may want to define one metadata track for storing both Non-timed and Timed Metadata. But, in some case there may not be sample data for Timed Metadata for example non-scalable channel audio.

cconcolato commented 2 years ago

It would be ill-designed to end up in situations where tracks have no data. I would suggest using tracks for timed data and using movie-level structures for non-timed metadata.

sunghee-hwang commented 2 years ago

Does movie-level structures for non-timed metadata means a (new) box in equal or higher level than trak box in moov box hierarchy?