K-Lite 14.5.0 Problem

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K-Lite 14.5.0 Problem Empty K-Lite 14.5.0 Problem

Post by bmn2 on Fri Oct 05, 2018 11:42 am

Hello! Updated from K-Lite Full 14.4.0 to K-Lite Full 14.5.0. There was a problem when playing at a higher speed(increase rate): The sound periodically disappears.


Last edited by bmn2 on Sat Oct 06, 2018 5:57 am; edited 2 times in total (Reason for editing : increase rate)

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by Admin on Fri Oct 05, 2018 1:11 pm

Can you give a link to a file that has this problem? A torrent is fine too.

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by bmn2 on Sat Oct 06, 2018 5:57 am

Lags occur on any file (tested on several mp4 1280x720).
P.S. There is no problem on version 14.4.0.

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by Admin on Sat Oct 06, 2018 2:45 pm

It works correctly here. Are you playing at 2x speed or some other value?

Perhaps it is just a performance issue on your system. How high is the CPU usage? Is hardware acceleration enabled in the video decoder?

Are you using the default audio renderer, or the internal audio renderer? (options > playback > output)

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by bmn2 on Sun Oct 07, 2018 5:05 pm

Admin wrote:It works correctly here. Are you playing at 2x speed or some other value?

Perhaps it is just a performance issue on your system. How high is the CPU usage? Is hardware acceleration enabled in the video decoder?

Are you using the default audio renderer, or the internal audio renderer? (options > playback > output)

On version 14.4.0, there are no lags, even at a speed of 2x (CPU utilization is around 35%).
On version 14.5.0, lags start already at a speed of ~ 1.25x (did not check at a lower speed)
Settings do not change.

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by Admin on Mon Oct 08, 2018 2:56 pm

I am unable to reproduce the problem, which means I can't fix it.

Try the internal audio renderer in options > playback > output.

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by bmn2 on Sun Mar 17, 2019 3:18 am

Updated to 14.7.5, the problem remains.
It seems the problem is observed only when playing 60fps video.
P.S. As I said earlier, there is no problem on version 14.4.0

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by Admin on Sun Mar 17, 2019 3:41 pm

I can reproduce it with a heavy UltraHD file at 100+ fps. But it also happens with 14.4.0.

It seems to be a performance issue, rather than a real bug.

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by bmn2 on Mon Mar 18, 2019 9:06 am

MediaInfo:

Format                      : MPEG-4
Format profile              : Base Media
Codec ID                    : isom (isom/iso2/avc1/mp41)
File size                   : 1.17 GiB
Duration                    : 1 h 4 min
Overall bit rate            : 2 595 kb/s
Writing application         : Lavf57.72.101

Video
ID                          : 1
Format                      : AVC
Format/Info                 : Advanced Video Codec
Format profile              : High@L4.2
Format settings             : CABAC / 3 Ref Frames
Format settings, CABAC      : Yes
Format settings, ReFrames   : 3 frames
Codec ID                    : avc1
Codec ID/Info               : Advanced Video Coding
Duration                    : 1 h 4 min
Bit rate                    : 2 456 kb/s
Width                       : 1 920 pixels
Height                      : 1 080 pixels
Display aspect ratio        : 16:9
Frame rate mode             : Constant
Frame rate                  : 60.000 FPS
Color space                 : YUV
Chroma subsampling          : 4:2:0
Bit depth                   : 8 bits
Scan type                   : Progressive
Bits/(Pixel*Frame)          : 0.020
Stream size                 : 1.10 GiB (95%)
Color range                 : Limited
Color primaries             : BT.709
Transfer characteristics    : BT.709
Matrix coefficients         : BT.709
Codec configuration box     : avcC

Audio
ID                          : 2
Format                      : AAC LC
Format/Info                 : Advanced Audio Codec Low Complexity
Codec ID                    : mp4a-40-2
Duration                    : 1 h 4 min
Bit rate mode               : Constant
Bit rate                    : 128 kb/s
Channel(s)                  : 2 channels
Channel layout              : L R
Sampling rate               : 44.1 kHz
Frame rate                  : 43.066 FPS (1024 SPF)
Compression mode            : Lossy
Stream size                 : 59.0 MiB (5%)
Language                    : English
Default                     : Yes
Alternate group             : 1
1. Version 14.4.0 Full. The problem is not observed at speeds up to x4 (FPS 230-244).
2. Version 14.7.5 Full. The problem arises already at x1.25 (strong lags up to a short computer hang).


Last edited by bmn2 on Mon Mar 18, 2019 10:11 am; edited 2 times in total

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by bmn2 on Mon Mar 18, 2019 9:17 am

Changelog 14.4.0 to 14.4.5 ~ 2018-09-13
Updated MPC-HC to version 1.8.0.0
Updated LAV Filters to version 0.72-12-g14744
Updated MediaInfo Lite to version 18.08.1
Updated Codec Tweak Tool to version 6.3.3
Added support for decoding AOMedia AV1 video
Separated hardware acceleration settings for MPC-HC and other players for extra flexibility
Hardware acceleration is now also enabled by default on more systems

Please report if you encounter any playback problems

Maybe the problem has arisen because of these changes?

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by bmn2 on Mon Mar 18, 2019 10:18 am

Problem solved by setting the "Decoding Method" parameter to "Use software decoding"

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K-Lite 14.5.0 Problem Empty Re: K-Lite 14.5.0 Problem

Post by Admin on Mon Mar 18, 2019 4:00 pm

Hardware decoding has its limits with regard to how fast it can decode. Depends on the hardware, video format and resolution.

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