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CENC Test Streams
Thomas Stockhammer edited this page Dec 16, 2020
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This information is outdated. The latest information is here: https://github.com/cta-wave/Test-Content-Generation/blob/master/Instructions/cenc.md
This is a version of the list in the Word file documenting content options for encrypted content.
The content options are all taken verbatim from section 10.5 of the WAVE device playback capabilities spec.
The legend is as follows
- base stream: the unencrypted stream, please provide reference to CFHD/CAAC and stream number
- 8.2.1 TrackEncryptionBox: provides the version of the Track Encryption Box
- 8.2.2.1 SampleEncryptionBox: present/absent
- 8.2.2.1 Sample Auxiliary Information: present/absent
- 8.2.2.1 SampleAuxiliaryInformationSizesBox: present/absent
- 8.2.2.1 Per_Sample_IV_Size: zero or non-zero
- 8.2.2.3 pssh options:
- Absent from CMAF Header and CMAF Fragments
- Version 0 present in CMAF Header
- Version 1 present in CMAF Header
- Version 1 present in CMAF Fragments
- Presence on multiple levels
- Presence of multiple pssh boxes
- 8.2.3.1 key storage: Any additional keys described by sample groups may be stored in version 1 ProtectionSystemSpecificHeaderBoxes in CMAF fragments, identifying the contained KID(s), protected by DRM specific methods.
- 8.2.3.2 Clear Samples
- Sample groups not indicating unprotected media samples, as specified in ISO/IEC 23001-7.
- Sample groups indicating unprotected media samples, as specified in ISO/IEC 23001-7.
- DRM System
- test
- clear
- other
| number | base stream | TrackEncryptionBox | SampleEncryptionBox | Sample Auxiliary Information | SampleAuxiliaryInformationSizesBox | Per_Sample_IV_Size | pssh | key storage | clear samples | DRM |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | CFHD1 | v1 | present | present | present | non-zero | Option 1 | no keys stored | no indication | test |
| 2 | as 1 | v0 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 |
| 3 | as 1 | as 2 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 |
| 4 | as 1 | as 1 | as 2 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 |
| 5 | as 1 | as 1 | as 3 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 |
| 6 | as 1 | as 1 | as 1 | as 2 | as 1 | as 1 | as 1 | as 1 | as 1 | as 1 |
| 7 | as 1 | as 1 | as 1 | as 1 | as 2 | as 1 | as 1 | as 1 | as 1 | as 1 |
| 8 | as 1 | as 1 | as 1 | as 1 | as 1 | as 2 | as 1 | as 1 | as 1 | as 1 |
| 9 | as 1 | as 1 | as 1 | as 1 | as 1 | as 3 | as 1 | as 1 | as 1 | as 1 |