sr90 b83b4120f4 feat(dash): Construct ClearKey PSSH based on MPD ContentProtection (#4104) ...

This PR parses default_KID from ContentProtection in the manifest and constructs a PSSH box from it to feed to the ClearKey CDM only if clear key content is detected.

Example: 

```
<ContentProtection
    schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc"
    cenc:default_KID="9eb4050d-e44b-4802-932e-27d75083e266" />
<ContentProtection
    value="ClearKey1.0" schemeIdUri="urn:uuid:e2719d58-a985-b3c9-781a-b030af78d30e">
         <clearkey:Laurl Lic_type="EME-1.0">https://drm-clearkey-testvectors.axtest.net/AcquireLicense</clearkey:Laurl>
 </ContentProtection>
```

PSSH is based on https://www.w3.org/TR/eme-initdata-cenc/

Tested content: 
https://media.axprod.net/TestVectors/v7-MultiDRM-SingleKey/Manifest_1080p_ClearKey.mpd

2022-04-13 08:34:39 -07:00

..

content_protection.js

feat(dash): Construct ClearKey PSSH based on MPD ContentProtection (#4104)

2022-04-13 08:34:39 -07:00

dash_parser.js

fix(dash): Fix performance regression (#4064)

2022-03-25 13:56:38 -07:00

mpd_utils.js

fix(dash): Fix performance regression (#4064)

2022-03-25 13:56:38 -07:00

segment_base.js

feat: Add media quality change events (#3700)

2021-11-12 15:07:18 -08:00

segment_list.js

fix(performance): Eliminate use of ES6 generators (#4092)

2022-04-04 10:58:16 -07:00

segment_template.js

fix(dash): Fix performance regression (#4064)

2022-03-25 13:56:38 -07:00