an API to limit playable/seekable range

[msokalski]

I'd like to have seekable/playable range limiter as specified here:

https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Using_HTML5_audio_and_video#Specifying_playback_range

var url = 'some_path/my.mpd' + '#t=10.0,20.0';
var src = new shaka.player.DashVideoSource( url, icp, ewma )

Thanks!

[joeyparrish]

You're referencing something with HTML5 video which doesn't apply to manifests. It also conflicts with "MPD Anchors", section C.4 in the MPD spec (ISO/IEC 23009-1:2014). MPD anchor syntax allows for t=start, but no end. So if we did what you're suggesting, we would limit our ability to add MPD anchors later.

If there is significant interest, we could offer an API to accomplish the same goal, but we will not implement this through a fragment in the manifest URL.

[msokalski]

For me, it is fine to have it in api, could be even in 'declarative' taste via Player constructor.

[joeyparrish]

Okay, then I've renamed the issue to "an API to limit playable/seekable range". We will not make it a priority right now, but we will re-evaluate after v2.0 is out.

[jaredscheib]

@joeyparrish any thoughts on this now that v2.0 (beta) is out? Seeking to determine whether it's currently possible to limit a download to a video fragment (start-end range). And, if that's possible but not yet implemented, what the status might be? Or if it's on the back-burner at the moment, does it seem like something that I (or someone outside of the core team) could take a crack at? Thank you for your help!

[joeyparrish]

We have a lot left to do to finish v2.0.0, so this is still on the back-burner. You are very welcome to take a crack at it.

We would prefer to discuss the API design with you before you send us a PR, to make sure it fits with our vision of v2. If you want to get in touch via email, you can find my address in the CONTRIBUTORS file. Or we can discuss the details right here on github.

One last thing: Please read CONTRIBUTING.md. We have a small amount of bureaucracy that you have to go through before we can accept a PR. Thanks for offering to contribute!