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Nitroblast

Choppy playback of 4k HEVC content in VLC

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Posted · Original PosterOP

Hi.

 

I'm running a newly built system (specs are at http://uk.pcpartpicker.com/b/CzMZxr) which has an i7 7700k (overclocked to 4.9GHz with no overheating issues) - now what I heard is that the 7700k has hardware accelerated 10 bit HEVC decoding, but when I play a 63mbps 10 bit HEVC-encoded 3840x2160 MKV file with a bitrate of 63mbps on my 850 EVO, it looks like this and lags heavily:

 

xtzhQdH.jpg

 

It looks fine in Windows Media Player, but lags even more than VLC.

 

Do you know of any software that may be able to play this without these problems, or is my setup just not powerful enough?


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Try lowering the bitrate. 63MBPS is really high.


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Posted · Original PosterOP
1 minute ago, RGProductions said:

Try lowering the bitrate. 63MBPS is really high.

It's a rip from one of the 4K UHD Blu-rays, which is why the bitrate is that high - I just assumed that a system with this much power would be able to handle it, considering a Blu-ray player would.


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Just now, Nitroblast said:

It's a rip from one of the 4K UHD Blu-rays, which is why the bitrate is that high - I just assumed that a system with this much power would be able to handle it.

look at CPU and GPU usage. 


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Posted · Original PosterOP
Just now, RGProductions said:

look at CPU and GPU usage. 

CPU jumps to 66%, GPU hovers around 23% and disk is at 7MBps.


Expert procrastinator.

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I am experiencing the same issue.  This issue goes away when I "upgraded" to a GTX950, which has hardware decode support for HVEC.  Try running your video through the integrated graphics instead of the 780.

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24 minutes ago, Nitroblast said:

It's a rip from one of the 4K UHD Blu-rays, which is why the bitrate is that high - I just assumed that a system with this much power would be able to handle it, considering a Blu-ray player would.

Did you decrypt the rip?


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4 hours ago, Nitroblast said:

Hi.

 

I'm running a newly built system (specs are at http://uk.pcpartpicker.com/b/CzMZxr) which has an i7 7700k (overclocked to 4.9GHz with no overheating issues) - now what I heard is that the 7700k has hardware accelerated 10 bit HEVC decoding, but when I play a 63mbps 10 bit HEVC-encoded 3840x2160 MKV file with a bitrate of 63mbps on my 850 EVO, it looks like this and lags heavily:

 

xtzhQdH.jpg

 

It looks fine in Windows Media Player, but lags even more than VLC.

 

Do you know of any software that may be able to play this without these problems, or is my setup just not powerful enough?

is your monitor 10bit if not then thats the cause . i get it on 10bit 4k blurays since my panel is only 8bit . also try playing it from a ssd have the movie on that if it still happens its just vlc converting 10 to 8 in my opinion


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