Live tests using a livesim1 and livesim2 simulators

[Murmur]

2024-01-26: New LIVE tabsheet test content available in a staging app, Playready CENC+CBCS and Widevine CENC+CBCS encodings available.
https://refapp.hbbtv.org/staging/catalogue/

NoDrm content is using a new livesim2 simulator, it supports a fractional number segdur=3.84s segments. It does not support ready-to-use drm segments.

Drm content still use an old livesim1 simulator, it supports ready-to-use drm segments, it does not support a fractional duration so content is segdur=8s encoding.

5.1 NoDrm a new livesim2 simulator.
5.2 Playready CENC traditional drm scheme.
5.2.2 Playready CBCS modern "cmaf" drm scheme.
5.7.1 Widevine CENC
5.7.2 Widevine CBCS

Links to Livesim projects:
Livesim1(python) https://github.com/Dash-Industry-Forum/dash-live-source-simulator
Livesim2(golang) https://github.com/Dash-Industry-Forum/livesim2

[juhajoki]

audio and subtitle switching tests should be added to LIVE tab (single period tests)

[bobcampbell-resillion]

Does Livesim2 support ac4? Should we have an example?

[Murmur]

@bobcampbell-resillion Livesim2 does not support Dolby AC4 audio track at the moment. I asked about this in Slack channel and they lack a public free-to-use test material.

• also I did not study how well ffmpeg+mp4box tools supported AC4 for dash+drm packaging

Dolby has few AC4 test files and dash manifests, I do not know the licensing rights.

Dolby AC4 mp4 (or AC4-IMS for mobile devices).
https://ott.dolby.com/OnDelKits/AC-4/Dolby_AC-4_Online_Delivery_Kit_1.5/help_files/topics/kit_wrapper_MP4_multiplexed_streams.html

Dash AC4 tests
https://ott.dolby.com/OnDelKits/AC-4/Dolby_AC-4_Online_Delivery_Kit_1.5/help_files/topics/kit_wrapper_DASH_multiplexed_streams.html