[Bug 17673] Define Initialization Data for implementations that choose to support the ISO Base Media File Format

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673

--- Comment #33 from Mark Watson <watsonm@netflix.com> ---
Returning to some of the problems raised above related to sample groups and
related structures in the Common Encryption case, the assumption with Common
Encryption is that the pssh boxes contain sufficient information for the CDM to
identify and obtain the keys needed to decrypt the file.

The other structures (Track Encryption Box, Sample Group Descriptions etc.),
whether in moov or moof boxes are used during stream parsing to identify the
key needed for each sample, but are not needed in the InitData to drive the
acquisition of the keys.

A solution which ensures that all the pssh boxes encountered in the file make
it into initData structures - as they are encountered - should work for common
encryption.

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Received on Thursday, 14 November 2013 07:14:23 UTC