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c2pa-org / public-testfiles

A collection of test files with which to test C2PA implementations.
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CMAF video example. #4

Open sr1990 opened 5 months ago

sr1990 commented 5 months ago

Hi, can someone please provide a CMAF video example? Thanks.

lrosenthol commented 5 months ago

@sr1990 At this time, CMAF is not a supported format by the C2PA, which is why there are no examples.

We have an active workstream around streaming media, and this is certainly part of that.

sr1990 commented 5 months ago

Hi @lrosenthol Thanks for the information. Do you have an example fmp4 file as per https://c2pa.org/specifications/specifications/2.0/specs/C2PA_Specification.html#_auxiliary_c2pa_boxes_for_large_and_fragmented_files where 

For fMP4 assets which are stored as a single flat MP4 file with a single 'moov' for all tracks and then one 'moof'/'mdat' pair for each fragment:

One auxiliary 'uuid' C2PA box with box_purpose set to 'merkle' as described below shall be included immediately preceding each 'moof' box.

?