Today, most streaming services are supporting more than 10 platforms with close to the same number of apps in different stores. Supporting all these platforms is a hygiene factor. It just has to work. Large streaming providers such as Netflix, Youtube, Peacock and Twitch are setting the requirements, making viewers used to access content on all platforms.


However, supporting all these platforms can be hard, definitely for streaming services facing Android device fragmentation, a common challenge amongst media companies streaming into different countries/regions.

The new THEOplayer Android SDK (5.x) was built from the ground up using fully native, low-level Android APIs to provide fine-grained control over the media playback experience.


This means the player will encounter the above-mentioned media decoder and playback differences firsthand.


THEOplayer has a built-in continuously improving decoder selection logic which handles most of the use cases, but sometimes the player cannot be aware of the exact capabilities or defects of a certain decoder.


This issue is not specific to THEOplayer. Any video player that does media playback via low-level APIs runs into similar issues.


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The secure decoder is primarily focused on decoding content that is encrypted or protected by digital rights management (DRM) technologies. It ensures that the content remains secure during the decoding process and prevents unauthorized access or tampering.

If there is a playback crash reported by the application, or video rendering glitches reported by the users, it is important to address these issues in a timely manner. Failure to do so can result in a negative user experience and potentially lead to loss of customers.

By maintaining an always up-to-date decoder selection blacklist on your backend or using Firebase Remote Config that you sync with every device at application start you can ensure your users that the same crash is not happening again.

I have an issue where when I attempt to play a 5K video, the audio runs okay but the video is slow, so the playback is out of sync. Is this something I can fix through settings somewhere on the app, headset or PC, or is my hardware too weak?

Skybox does seem to handle 5K videos better for me, in that they don't desync, though there's some artifacting still when I navigate around the video that clears up after a second. It's entirely possible it's compensating by instead dropping frames rather than desyncing, though.

No, your hardware is more than enough to handle the video above 5k. It's just DeoVR has some difficulties handling the 10bit video output. If you transcode the video from 10bit to 8bit, even 8k videos will play smoothly. I think this is a pipeline issue, because the decoder is only working at 60% for 10bit videos, not 100%. Something in the pipeline has cause the traffic to slow down and the decoder didn't get the full data to decode in time.

Oh, there is a little fix too. If you are using LAV video decoder, uncheck the "P010" in "Output Formats" will help a little bit. This way, it will force LAV decoder to decode the video in 8bit format, but still, probably won't help enough.

I only have a Geforce 1080, so the result might be different.

The video you provided is 8bit color depth. If you cannot even play such a file smoothly, then obviously you are not using a hardware decoder to handle the HEVC decoding. I recommend using K-Lite Codec pack.

After you install the Codec pack, change the "LAV Video" property to use hardware decoder, some said "DXVA 2 native" is the best, my personal good setting is "Nvidia Cuvid (old)". It's old but it works fine for me.

Now, when you play the video above with DeoVR, you should see LAV icons in the notification area (where the speaker and clock icons are). If you don't see the LAV icons, run the "Codec Tweak Tool" that came with K-Lite. Make sure the "Preferred Splitters" are all LAV Splitter, and the "preferred decoders" should also be "LAV video". You probably need to restart the computer to make it effective( my own experience is that it works right away).

I do have K-Lite Codec installed with LAV Video on, but after playing around with the hardware decoder setting, the Nvidia Cuvid decoder (and only that decoder) got rid of the video lag. Wild. Thanks a bunch!

Hahahaha such a bullshit ... ? Ryzen 5 3600 is too weak for 4K+ videos on RTX2070 Super !?!? Are you crazy ?? ???

dizzyMongoose my friend just dont listen these bullshits - your hardware is more then enough for smooth play of 8K vids. The problem is in deovr versions over 9.xx . But here you wont get any support from the developers.

Just try to downgrade to 8.xx version or try different video player . Dont mess with that LAV codecs bullshits too .

boboweb 

I am confused why Ryzen 5 3600 cannot handle 2700p 8bit video myself.

I have Ryzen 5 2600, and using pure software decode, the CPU using only 26% power to handle a 2700p video.

Let alone the 3600 is much better than 2600.

That's why I thought in the beginning that it was the 10bit problem. It turned out not to be true. It was an 8bit video. That's why I posted the second one to provide a different fix. I didn't try to mislead people in anyway. God knows how many tries you have to do before you find the real solution. Each try is just an attempt of fix, not a misleading.

Guys common are you serious !?? For what CPU handling you are talking about at all ??? The man said he has RTX 2070 Super and it has hardware decoding everything up to 8K 10bit . My CPU is i5 2500K - 10 years old just 4 core CPU and i can play all 8K vids with 120fps on my 1080Ti ... So please be more serious .. and dont mislead the people they must to invest in new CPUs ! Just fix the deovr software...

boboweb 

You confused yourself with CPU and GPU decoding. 

While I said that the CPU Ryzen 5 3600 itself should be able to handle a 5k video, you kept referring the issue to GPU decoding.

CPU decoding is the "software only" decoding. It uses only CPU, which is Ryzen 5, to decode the video. It doesn't involve the video card. In LAV Video setting, it's when "hardware acceleration" set to "none".

Today's GPUs are beasts. GeForce 1080 can handle 8kx8k, and GeForce 2070 should be able to handle 16k x 16k HEVC decoding. Yet our friend @dizzyMongoose still have a problem of playing a mere 5k video smoothly.

So from my point of view, even just with the software decoding, his machine should be fine playing the video, so I suggested it was 10 bit problem. Then from his reply post, it turned out it's still the "hardware acceleration" issue.

@Yar Well, while I am glad that using good old "cuvid" fixed his problem, I start wondering whether DeoVR's decision to use new runtime really worth the effort? Rewriting code from the ground is quite painful, yet the result is actually not as good as the 8.xx ones. What kind of benefit does this new runtime brings?

I am not confusing myself you can bet on this ... I have more then 30 years of experience with hardware so please dont try to argue with me on topics that you are not prepared so well ...

The man said he has RTX2070 Super - so for what CPUs you are talking about at all ???

And the 10 bits are nothing to do with the new faulty deovr versions ... Otherwise why all works smooth on version 8.55 but not on 9.5 ??

I seem to suffer from the same issue. My rig is considerably weaker than dizzyMongoose's, but I was able to play up to 8k video perfectly before the most recent update. Everything had worked perfectly ever since I installed the HEVC codecs through Microsoft Store. 

The newest update to DeoVR has rendered it pretty much unusable, most likely for many people.

When I play a 3630p 8bit video in Windows Media Player, it's definitely using the HEVC codec. There is no LAV icons in the notification area, and the CPU usage of my poor Ryzen 5 2600 jumps to 100%. Meanwhile the GPU decoder usage remains at 0%.

Therefore, the HEVC codec in my PC (Win10 1809, build 17763) is obviously using pure software decoding. DXVA2 obviously not working.

Now when I play a 3630p 10 bit video in Windows Media Player, the playback is insufferably slow and jumpy. The CPU usage drops to 65% to 80% !! Meanwhile the GPU decoder usage is still 0%.

This means the Microsoft Media Player (with HEVC codec) also suffers from the same issue like DeoVR player ! It's in fact worse, because in DeoVR at least I can make the GPU do the decoding, but in Windows Media Player, there is nothing you can do.

In short, I think it's something broke in the Windows Media Player, its 10 bit handling is terrible ! Unfortunately DeoVR is using some part of WMP (maybe the renderer?) , so it suffers the same pipeline issue.

philpw99 

Interesting. Other VR video players seem to work just fine. It's just DeoVR that works terribly now. I tried Windows Media PIayer, and it pretty much crashes instantly if I try to play some videos. 

MPC doesn't even seem to play them properly for me anymore, so I have no idea why the other VR players work.

I'm sure they're using the HEVC codecs though, because otherwise they would run really poorly on my rig. 

One VR player says that it's using "Media Foundation" to play them, I'm assuming that's basically without DirectShow and it works fine. 

So basically, I have no idea where the problem lies at this point, but at least other players seem to work.

I got a Ryzen 5 2600x and a GTX 1650 Super.

To play a 7k or 8k 10bit video, you need to open the file in DeoVR first, it will play lagging and jumping, then you click on "DirectShow" to turn it off. Once the direct show in DeoVR is turned off. Magically it will play smoothly and nicely. Next time when DeoVR open it, it will remember the setting and automatically turn the direct show off for this video.

My guess why this fix works:

Once you turn off "DirectShow" in DeoVR, the player will use HEVC codec to play the video, and HEVC supports DXVA2, which fully supports 10bit decoding. So you will finally see smoothly playing 10bit video in DeoVR. 152ee80cbc

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