Add DASH-IF Certurl support

[tobbee]

Add DASH-IF Certurl support and test for CPIX-based DRM configuration that verifies LaURL and CertificateURL are properly inserted into MPD manifests for Widevine, PlayReady, and FairPlay systems.

Changes:

• Added TestParamToMPD test case for CPIX-based DRM with all three DRM systems
• Extended pkg/drm/drm_test.go to verify CertificateURL population for all DRM systems (Widevine has empty, PlayReady and FairPlay have values)
• Updated cpix_1key_cbcs_test.xml with all three DRM system IDs
• Created DRM configuration file for app testdata
• Fixed CertURL field reference in livempd.go (should be CertificateURL)

Implements #256 and #264.

[avelad]

@tobbee Any update? I'd like to see it merged into livesim2 soon.. Thanks!

[tobbee]

@avelad The main thing I'm unsure about is whether FairPlay will work. Can it be tested with Shaka-player?

[avelad]

@avelad The main thing I'm unsure about is whether FairPlay will work. Can it be tested with Shaka-player?

Yes, you can test it on Shaka Player

[tobbee]

@avelad

I merged this PR and tried to configure everything on my test instance at https://192-46-234-23.ip.linodeusercontent.com

The URL
https://192-46-234-23.ip.linodeusercontent.com/livesim2/drm_EZDRM-1-key-pr-cbcs/testpic_2s/Manifest.mpd

includes the following ContentProtection info for FairPlay

<ContentProtection schemeIdUri="urn:uuid:94ce86fb-07ff-4f43-adb8-93d2fa968ca2" value="Fairplay">
  <dashif:Laurl xmlns:dashif="https://dashif.org/CPS" licenseType="EME-1.0">https://fps.ezdrm.com/api/licenses/auth?px=F5926B&amp;assetID=312e3362-3410-469a-b536-b9c9d0cafc31</dashif:Laurl>
</ContentProtection>

but this does not seem to enough for shaka-player to play. Is there something else needed?

[avelad]

@avelad

I merged this PR and tried to configure everything on my test instance at https://192-46-234-23.ip.linodeusercontent.com

The URL https://192-46-234-23.ip.linodeusercontent.com/livesim2/drm_EZDRM-1-key-pr-cbcs/testpic_2s/Manifest.mpd

includes the following ContentProtection info for FairPlay

<ContentProtection schemeIdUri="urn:uuid:94ce86fb-07ff-4f43-adb8-93d2fa968ca2" value="Fairplay">
  <dashif:Laurl xmlns:dashif="https://dashif.org/CPS" licenseType="EME-1.0">https://fps.ezdrm.com/api/licenses/auth?px=F5926B&amp;assetID=312e3362-3410-469a-b536-b9c9d0cafc31</dashif:Laurl>
</ContentProtection>

but this does not seem to enough for shaka-player to play. Is there something else needed?

Missing Certurl :D You only includes Laurl....

[tobbee]

Ooh. That was embarrassing 🫢. I didn't run the latest version with including this fix. After rebuild, I now have

<ContentProtection schemeIdUri="urn:uuid:94ce86fb-07ff-4f43-adb8-93d2fa968ca2" value="Fairplay">
  <dashif:Laurl xmlns:dashif="https://dashif.org/CPS" licenseType="EME-1.0">https://fps.ezdrm.com/api/licenses/auth?px=F5926B&amp;assetID=312e3362-3410-469a-b536-b9c9d0cafc31</dashif:Laurl>
  <dashif:Certurl xmlns:dashif="https://dashif.org/CPS">https://na-fps.ezdrm.com/demo/video/eleisure.cer</dashif:Certurl>
</ContentProtection>

Just trying with "custom content"with the online demo of v4.16.10 at https://shaka-player-demo.appspot.com/demo/ it still does not play in Safari, although the unencrypted version does.
I don't get any understandable log messages.

I did manage to get content running in Safari with this EZDRM URL and key setup a long time ago, although that was with a proprietary MSE+EME player, so I may need to double-check that again.

@avelad did you manage to run with FairPlay with some other content?

[avelad]

@tobbee I found an issue in Shaka: shaka-project/shaka-player#9436 but after fixing it, I get "Media failed to decode" and this isn't related to Shaka... I'm checking working HLS streams and comparing segments, and I see that the BTRT box isn't included in LiveSim2. I don't know if this is related...

[avelad]

Test URL with Shaka fix: https://shaka-project.github.io/shaka-player/demo/#audiolang=en;textlang=en;uilang=en;assetBase64=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;panel=CUSTOM%20CONTENT;build=uncompiled

[avelad]

SourceBuffer::sourceBufferPrivateDidReceiveRenderingError(267EBDB6914C0002) 0, but this is not usefull, so i need ask to Apple to debug it...

[tobbee]

@avelad Thanks for the feedback. When I, or rather a colleague, got MSE+EME working with Safari a long time ago, we did not have an BTRT box, so that shouldn't be the issue.

I've got limited time, but I hope to get the old system working again so that I can check the exact MSE+EME calls being made there.