Method, device, and computer program for dynamically encapsulating media content data

A method for processing encapsulated media data comprising at least one track including a plurality of samples, the method being carried out by a file reading device and comprising:

• obtaining the at least one track to be processed;
• obtaining, from the encapsulated media data, a first sample group description describing a processing order of 1) at least one transformation and/or 2) at least one second sample group description, the at least one transformation and/or the at least one second sample group description being applied before or after processing or decoding at least one sample of the at least one track, the first sample group description being associated with the at least one track;
• obtaining, from the encapsulated media data, the first sample group description;
• determining that the encapsulated media data comprises an indication signalling that the at least one track is to be processed in a case where the file reading device recognizes the second sample group description, and
• in a case where the file reading device does not recognize the second sample group description, ignoring the at least one track when processing the encapsulated media data.

A file generating device comprising a processing unit configured for carrying out a method for encapsulating media data comprising a plurality of samples, the file generating device comprising:

• at least one processor;
• and
• at least one memory in communication with the at least one processor, the at least one memory including computer-readable instructions stored thereon that, when executed by the at least one processor, cause the generating device to:
• generate at least one track including the plurality of samples;
• generate a first sample group description describing a processing order of 1) at least one transformation and/or 2) at least one second sample group description, the at least one transformation and/or the at least one second sample group description being applied before or after processing or decoding at least one sample of the at least one track, the first sample group description being associated with the at least one track;
• and
• encapsulate the at least one track and the first sample group description in a media file,
• wherein the media file comprises an indication signalling to a file reading device that the at least one track is not to be processed in a case where the file reading device does not recognize the second sample group description.

A file reading device comprising a processing unit configured for carrying out a method for processing encapsulated media data comprising at least one track including a plurality of samples, the file reading device comprising:

• at least one processor;
• and
• at least one memory in communication with the at least one processor, the at least one memory including computer-readable instructions stored thereon that, when executed by the at least one processor, cause the file reading device to:
• obtain the at least one track to be processed;
• obtain, from the encapsulated media data, a first sample group description describing a processing order of 1) at least one transformation and/or 2) at least one second sample group description, the at least one transformation and/or the at least one second sample group description being applied before or after processing or decoding at least one sample of the at least one track, the first sample group description being associated with the at least one track;
• obtain, from the encapsulated media data, the first sample group description;
• determine that the encapsulated media data comprises an indication signalling that the at least one track is to be processed in a case where the file reading device recognizes the second sample group description,
• in a case where the file reading device does not recognize the second sample group description, ignoring the at least one track when processing the encapsulated media data.