EBU Logo EBU Logo
0001F - Active Format Description
published
0001F v2.0
Item image
ACTIVE FORMAT DESCRIPTION
AFD Value(s)
Aspect Ratio(s)
Expected AFD Value
AFD Absence, Value, Mismatch
https://dev.ebu.io/items/0001F/versions/2-0-0/
Check
Report
Summary
EBU QC Id
0001F
Name
Active Format Description
Status
published
Category
absolute
Lead editor
Roberto BORGOTALLO
Aliases
active format descriptor AFD
Tags
video
Versions
Version Status Edition date Saved by Note
Details
Definition
System shall check the presence and value of the Active Format Description (AFD), which describes the aspect ratio of the active picture, and safe cut-out areas.
References

  • SMPTE ST 2016-1

    Remark: Format for Active Format Description and Bar Data

  • ISO/IEC 13818-2

    Remark: MPEG-2 Video

  • ISO/IEC 14496-10

    Remark: H.264

Examples

  • input: "Active Format Description Expected" = 10 (16:9)
    Output: "Active Format Description Absent" = False
    Output: "Active Format Description" = True
    Output: "Active Format Description Value" = 9
    Output: "Active Format Description Desc" =
    "In a 4:3 coded frame: Full frame 4:3 image, the same as the coded frame.
    In a 16:9 coded frame: Pillarbox 4:3 image, horizontally centered in the coded frame"

  • Input: "Active Format Description Expected" = 15 (16:9 with alternative 14:9)
    Output: "Active Format Description Absent" = False
    Output: "Active Format Description" = True
    Output: "Active Format Description Value" = 10
    Output: "Active Format Description Desc" =
    "In a 4:3 coded frame: Letterbox 16:9 image, vertically centered in the coded frame with all image areas protected.
    In a 16:9 coded frame: Full frame 16:9 image with all image areas protected."

Input parameters
Name Description
Output parameters
Name Description
Test material
Title Version Download
Remarks
Remarks
User discussions
Title Author Last update