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nova-video-player / aos-AVP

NOVA opeN sOurce Video plAyer: main repository to build them all
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[FEAT]: Videos over Nova's SMBJ start up nearly 3x slower than they do on Kodi's SMB #1056

Open Pentaphon opened 8 months ago

Pentaphon commented 8 months ago

Problem description

Videos over SMBJ start up nearly 3x slower than they do on Kodi

I notice one major difference when I compare the two players with a somewhat scientific test.

Nova's SMBJ starts videos in about 5.75-6 seconds.

Kodi's SMB starts videos in about 2 seconds.

I tried controlling for all variables in the steps below. I was able to reproduce the same result every single time.

Steps to reproduce the issue

1) Get fresh install of latest Nova (6.2.51) and Kodi (21 beta 2) 2) Play the same videos (in this case 1080p web-dl) from the same share, on the same network, using the same device. 3) Get a stopwatch and time how long it takes for videos to open over SMBJ on Nova and SMB on Kodi.

No matter how many times I kept testing and re-testing this, Kodi's SMB would start up faster than Nova's SMBJ. I went through about 20 videos of about the same bitrate and resolution so far and I would always get Kodi starting videos about 3x faster.

Video would begin playing on Kodi's SMB in about 2 seconds. Video would begin playing on Nova's SMBJ in about 5-6 seconds.

Can anybody else reproduce this behavior? @courville this happens on both my TV devices, the Onn 4K 2021 and the Fire TV 4K stick.

Expected behavior

You'd expect Nova's SMBJ to start videos as fast as Kodi does. Is there any way to speed up the video startup over SMBJ?

This is not a huge issue but I do wonder why Kodi has closer to instant playback while Nova takes little while to start playing video under the exact same conditions.

Your phone/tablet/androidTV model

Onn 4K box (2021)

Operating system version

Android 10

Application version and app store

6.2.51

Additional system information

No response

Debug logs

No response

courville commented 8 months ago

Perhaps this is linked to buffering or subs uploading, I need to check. I would however perhaps classify this issue as "enhancement" and not "bug".

EDIT: to my knowledge also, kodi uses a custom C or C++ based SMB client and not a java one line smbj.

Pentaphon commented 8 months ago

Perhaps this is linked to buffering or subs uploading, I need to check. I would however perhaps classify this issue as "enhancement" and not "bug".

Yes, my apologies. I should have put "enhancement" instead. I've changed the title.

EDIT: to my knowledge also, kodi uses a custom C or C++ based SMB client and not a java one line smbj.

Perhaps I should report this upstream to hopefully get some kind of optimization?

courville commented 8 months ago

Perhaps I should report this upstream to hopefully get some kind of optimization?

I do not think so yet because we need to understand if this is not nova dependent first. Otherwise they will have no way to investigate or actionnable data to work with.