1409988 - Widevine playback fails on custom Shaka player live stream

Status: NEW

(Core :: Audio/Video: Playback, defect, P3)

Description

[Chris Pearce [:cpearce (Not reading bugmail)]]

Reported on the Shaka player Github:
https://github.com/google/shaka-player/issues/1073

The following URL plays in Chrome but not in Firefox:
https://nightly-dot-shaka-player-demo.appspot.com/demo/#asset=https://nginx.dev.cdnnow.ru/live/index.mpd;license=https://one.drmnow.ru/widevine;lang=en-US

Comment 1

[Chris Pearce [:cpearce (Not reading bugmail)]]

James, can you take a look at this please?

Comment 2

[James Cheng[:JamesCheng]]

Sure, keep me ni? and I will investigate it ASAP.

Comment 3

[James Cheng[:JamesCheng]]

We got numerous errors from CDM here

http://searchfox.org/mozilla-central/rev/1c4da216e00ac95b38a3f236e010b31cdfaae03b/dom/media/gmp/ChromiumCDMChild.cpp#809

the return value is cdm::kNeedMoreData which makes us fired 

http://searchfox.org/mozilla-central/rev/1c4da216e00ac95b38a3f236e010b31cdfaae03b/dom/media/gmp/ChromiumCDMChild.cpp#817

and we sent an empty MediaData as decoded data

http://searchfox.org/mozilla-central/rev/1c4da216e00ac95b38a3f236e010b31cdfaae03b/dom/media/gmp/ChromiumCDMParent.cpp#797

so we show blank in mediaelement...

So far, I have no idea why we got cdm::kNeedMoreData? Is this because of the content bad muxed?

And I'm not sure we handle this cdm::kNeedMoreData error in the right way(send back a blank MediaData).

cpearce, any idea?

Comment 4

[James Cheng[:JamesCheng]]

Attachment: cdm.log

Record the log by MOZ_LOG=MediaSource:5,GMP:5,EME:5,MediaFormatReader:5 ./mach run

Open the site and run for a while, then I command + Q to close the firefox.

Comment 5

[James Cheng[:JamesCheng]]

Attachment: cdm.log

Comment 6

[Chris Pearce [:cpearce (Not reading bugmail)]]

I wonder if this was fixed by bug 1409670, however the URL in comment 0 no longer works. I have asked upstream if the reporter can either test Nightly themselves, or provide a new URL for us to test with.

Comment 7

[James Cheng[:JamesCheng]]

I think this issue happened on widevine CDM(bug 1409670 is for clearkey). So we need for the new URL for further investigation.

Comment 8

[joeyparrish]

The user reports that the stream is back up, and I can confirm that I can access it right now:

https://nightly-dot-shaka-player-demo.appspot.com/demo/#asset=https://nginx.dev.cdnnow.ru/live/index.mpd;license=https://one.drmnow.ru/widevine;lang=en-US

Comment 9

[James Cheng[:JamesCheng]]

Yes, I can also access the link but the issue still happened.