HLS PlayReady support

[joeyparrish]

I have been told that Microsoft has defined their own KEYFORMAT for PlayReady in HLS. We don't support this yet in our HLS parser.

Needed:

1. Sample content for testing
2. Documentation of the KEYFORMAT
3. Code to parse the KEYFORMAT and construct EME init data from it

[sandersaares]

Is this about #EXT-X-PLAYREADYHEADER: or some newer HLS+PR binding?

[chrisfillmore]

We have HLS-PR test content. I will send you an email.

[chrisfillmore]

I just noticed that the KEYFORMAT for our HLS-PR content is just KEYFORMAT="com.apple.streamingkeydelivery":

#EXTM3U
#EXT-X-VERSION:5
## Created with Unified Streaming Platform(version=1.7.18)
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MEDIA-SEQUENCE:1
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-TARGETDURATION:3
#EXT-X-KEY:METHOD=SAMPLE-AES,URI="skd://MkJDQzZGRjYtMkVFMC00NTVGLTkwRTMtRjIwOUMxM0ZCQUQy",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1"
#USP-X-TIMESTAMP-MAP:MPEGTS=900000,LOCAL=1970-01-01T00:00:00Z

What is the KEYFORMAT defined by Microsoft?

[KarlGallagher]

@chrisfillmore There is no KEYFORMAT defined for PlayReady by Microsoft.
As @sandersaares has said #EXT-X-PLAYREADYHEADER is the way to signal PlayReady DRM on HLS.

The header data is a PlayReady Header Object (PRHO). The implementation will probably need to extract this and wrap it in a PSSH box (I think).

Here is an example stream: http://playready.directtaps.net/media/hls/tosh2641080aacenc/tears_of_steel_1080p-m3u8-aapl.ism/manifest(format=m3u8-aapl)

[chrisfillmore]

Thanks for the example. I don't think my test content has these headers.

[modernletter]

According to current Microsoft documentation com.microsoft.playready is recommended KEYFORMAT used to signal PlayReady in HLS (fMP4). #EXT-X-PLAYREADYHEADER is still supported for "legacy purposes".

There is also test content using this KEYFORMTAT:
https://testweb.playready.microsoft.com/Content/Content4X

[trainvnexlesoft]

Hi team,
I'm waiting for Shaka-player support Playready DRM, anything news about this?

[joeyparrish]

We don't yet support PlayReady in HLS. We haven't had time to work on it ourselves, but we would be happy to accept contributions in this area.