Error 4012 and then 5005 on Dash manifest

[lelikg]

Have you read the FAQ and checked for duplicate issues:
yes

What version of Shaka Player are you using:
latest master

Can you reproduce the issue with our latest release version:
yes

Can you reproduce the issue with the latest code from master:
yes

Are you using the demo app or your own custom app:
custom app

If custom app, can you reproduce the issue using our demo app:
haven't tried

What browser and OS are you using:
chrome macos

What are the manifest and license server URIs:
http://vod.panda-os.com/1718/dash/sport1-stream1-1.mpd

(you can send the URIs to shaka-player-issues@google.com instead, but please use GitHub and the template for the rest)

What did you do?
tried to play this url in shaka player

What did you expect to happen?
the video would play

What actually happened?
got error 4012 and then error 5005

[joeyparrish]

In the MPD you referenced, the video track's bandwidth is 0, and the audio track's bandwidth is 125000. The content is broken because 0 is not a valid value. See detailed analysis in #938 (comment) if you are interested.

That said, it plays in v2.0.9, and in #938 I agreed implement a work-around. Since your content only has one audio+video combination, we should still be able to play it.

I'm going to mark this as a duplicate of #938, and will close them both with the same work-around. Thanks!

[lelikg]

@joeyparrish thanks for the quick reply.
So according to #938 the manifest should play audio bandwidth is 125000, however it never plays for me.
It does play in bitdash and dashif and akamai players.
I am using v2.1.5 because of an error in PlayReady that 2.1.5 fixes.
Can you please elaborate how I can implement the workaround?

[joeyparrish]

@lelikg, no, I'm sorry for the confusion. According to #938, the manifest is broken because the video bandwidth is 0, which is invalid. A bandwidth of 0 produces nonsensical values according to formulas in the spec.

I will attempt to make a change in Shaka Player that will allow such content to play in spite of it being out of spec. I will use the manifest link you provided to validate that change.

What encoder/packager are you using to produce that stream? I'd like to report the bandwidth="0" issue to them, so that they have an opportunity to fix it on their end, as well.

[lelikg]

@joeyparrish I'm using nginx rtmp module https://github.com/arut/nginx-rtmp-module

[joeyparrish]

I filed arut/nginx-rtmp-module#1079. Thanks!

[joeyparrish]

@lelikg, I am now getting a 404 error on your manifest. Can you please make it available to me again for testing purposes? I want to make sure that my workaround is correct for your content.

If you don't want to leave it up publicly, you can send a new URI to shaka-player-issues@google.com instead. Thanks!

[joeyparrish]

I saw that the manifest was back up, and I was able to verify that my work-around works with your content. Thanks!

[lelikg]

@joeyparrish thanks for all your help
I used lua to modify the bandwidth="0" to bandwidth="600000" as a temporary workaround, and it works.

[joeyparrish]

The fix has been pushed to master, so you can try the player workaround now as well.

[lelikg]

@joeyparrish will test and let you know! Thanks!

[joeyparrish]

The work-around has been cherry-picked for v2.1.6.