[Android] Use multiple WV sessions

[matthuisman]

fixes: #693

as per peaks comment here:
https://forum.kodi.tv/showthread.php?tid=350092&pid=2908844#pid2908844

This fixes pixalation issues on some streams mainly on Sony android tvs.
Seems the issue appears when both audio and video are encrypted

Test build (Android AARCH64)
https://jenkins.kodi.tv/job/xbmc/job/inputstream.adaptive/job/PR-734/5/artifact/cmake/addons/build/zips/inputstream.adaptive+android-aarch64/inputstream.adaptive-2.6.22.zip

Test build (Android ARMV7)
https://jenkins.kodi.tv/job/xbmc/job/inputstream.adaptive/job/PR-734/5/artifact/cmake/addons/build/zips/inputstream.adaptive+android-armv7/inputstream.adaptive-2.6.22.zip

[matthuisman]

initial results look promising:

1. https://forums.whirlpool.net.au/thread/3wwnqx63?p=69#r1363
2. Audio causes video stuttering on L1 Android device #693 (comment)
3. Intermittent Pixelated Video with Foxtel Go Add-On matthuisman/slyguy.addons#28
4. Another user via email confirmed this fixed pixelation on 7plus widevine vod content on their sony tv

So i think this solves the problem of having both encrypted audio and video streams on android causing pixalation / buffering.
It doesn't seem to solve the issue of some audio streams (usually 5.1) causing video to buffer
#693 (comment)

[matthuisman]

@CastagnaIT
be interested to know if / how this affects your DRM init code?
as with this on Android, we can have multiple DRM sessions for each stream (audio / video)

[CastagnaIT]

do not think "preinit" opens only one session without any check

but in your commit should be better if you add a comment somewhere for this particularity,
there is a lot of code uncommented make difficult to understand the things

[matthuisman]

I'd love to add a comment if I knew exactly what it was doing. I simply going off peaks suggestion in the linked forum.

Maybe I'll just put "return false to allow multiple sessions for different streams"

Be handy if you could test with Netflix with the init stuff. Just to make sure it doesn't affect that

[CastagnaIT]

yes i will do

[CastagnaIT]

Tried on my smartphone played 3 videos without problems the data there are

[glennguy]

I'm not sure if I know the right answer to this, but should we have a setting for this behaviour? Peak3d did mention that the tradeoff is streams may be slower to start up due to the need to create multiple DRM sessions in Android which would affect all users, not just ones affected by the issue this solves.

[matthuisman]

I havn't noticed any delayed start up Pretty sure more reliable streams should be more important than 0.5s delay? Adding a setting just means more users reporting the issue and then needing to figure out that's how they fix it. So would need to be default to true at least. Then what's the point? I'm sure we could make up the slight delay (if any) by improving other code :)

…

On Thu, 29 Jul 2021, 18:26 Glenn Guy, ***@***.***> wrote: I'm not sure if I know the right answer to this, but should we have a setting for this behaviour? Peak3d did mention that the tradeoff is streams may be slower to start up due to the need to create multiple DRM sessions in Android which would affect all users, not just ones affected by the issue this solves. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#734 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABPQAKLJDGFQELEVEOKPUWTT2DYA3ANCNFSM5AISIQDA> .

[CastagnaIT]

In my test i did not notice any startup slowdowns noticeable
and my phone is a Honor 8 is a bit grandfather..
but is always possible ask to others do others tests

[matthuisman]

I don't mind adding a setting. But I actually think we need less settings, not more. As IA is used by other add-ons, it's not really that obvious to end users that it has its own settings.

Therefore, as less settings and best defaults is always best I reckon.

We are doing a good job if users never need to adjust the settings :)

When adaptive comes in, then that should remove need for users to muck around with bandwidth settings as well .

[glennguy]

@matthuisman all good points, totally agree :)

[matthuisman]

:)
I still need to add the comment. I'll do this 2moro

UPDATE:
Comment added
Ready to go in

[phunkyfish]

👍