Sample groups for SVC/MVC

[podborski]

It seems that some of the 4CCs related to SVC and MVC do not belong to sample groups:

• svpr - PriorityRangeBox, containers=[scif, mvif]
• svdr - SVCDependencyRangeBox, containers=[scif]
• svip - InitialParameterSetBox, containers=[scif, mvif]
• rrgn - RectRegionBox, containers=[scif]
• ldep - TierDependencyBox, containers=[scif, mvif]
• iroi - IroiInfoBox, containers=[scif]
• tran - TranscodingInfoBox, containers=[scif]

All of those are actually boxes and not sample groups. They appear in actual sample groups scif or mvif VisualSampleGroupEntries. I guess these should be moved to boxes.csv?

[podborski]

Found one more vipr. There is a sample group and an additional box defined with the same 4CC. Any reason why this can not just be inside the sample group definition? Was the idea to re-use it somewhere?

class ViewPriorityBox extends Box ('vipr') {
    for (i=0; i++) {        // To end of box
        unsigned int(6) reserved = 0;
        unsigned int(10)    view_id;
        unsigned int(32)    content_priority_id;
    }
}

class ViewPriorityEntry() extends VisualSampleGroupEntry ('vipr')
{
    ViewPriorityBox();
}