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Posted

I have a strange problem that is driving me crazy. I have an Emby Server on Windows 10 x64. Emby Add-on on OpenELEC 6 Intel NUC 5i5RYH.

 

Sometimes playback (HTTP) stops. When it stops the video freezes for 20 secs before Kodi/OpenELEC goes back to menu. During that 20 secs if I click for information, I see that my OpenELEC Buffer is full 10 MB and one of 4 of my CPU is at 100%. Video is x264 and hardware decoded, it's not decoded by CPU. I don't know why one CPU core is at 100% when playback freezes.

 

If I resume, it plays again and stops after 5-10 minutes. If I restart my Server PC and OpenELEC, the problem seems to go away for a while. If I play the same file from USB without restarting, no problem. This must mean a network problem but the buffer is full at 10 MB and I have done lan speed tests with enough bandwidth. It's not that simple.

 

So I don't know the problem is the server or the OpenELEC client. I attached both logs here.

 

To make it easy I deleted all logs and stopped at the first playback stop error. Started playing a video around 11:30 pm and it stopped by itself for no reason at around 11:57 pm. Please take a look at the logs and put me in the right direction. Thank you.

 

01_KODI.log

 

server-63588842972.txt

Posted (edited)

So after long investigation I was able to pin point something. This happens if the file is mp4 and has subtitles. I muxed the same file into a new mp4 with no subtitle and no longer the problem.

 

File with the problem

Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 2.78 GiB
Duration                                 : 2h 8mn
Overall bit rate mode                    : Variable
Overall bit rate                         : 3 088 Kbps
Encoded date                             : UTC 2015-11-12 19:28:59
Tagged date                              : UTC 2015-11-12 19:28:59

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 8 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 2h 8mn
Bit rate                                 : 2 700 Kbps
Maximum bit rate                         : 18.7 Mbps
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.122
Stream size                              : 2.43 GiB (87%)
Writing library                          : x264 core 146 r2538 121396c
Encoding settings                        : cabac=1 / ref=8 / deblock=1:-1:-1 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=12 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=2pass / mbtree=1 / bitrate=2700 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=62500 / vbv_bufsize=78125 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Encoded date                             : UTC 2015-11-12 19:28:59
Tagged date                              : UTC 2015-11-12 19:32:20

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 2h 8mn
Bit rate mode                            : Variable
Bit rate                                 : 384 Kbps
Maximum bit rate                         : 395 Kbps
Channel(s)                               : 6 channels
Channel positions                        : Front: L C R, Side: L R, LFE
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 353 MiB (12%)
Language                                 : English
Encoded date                             : UTC 2015-11-12 17:17:25
Tagged date                              : UTC 2015-11-12 19:32:20

Text
ID                                       : 3
Format                                   : Timed Text
Codec ID                                 : tx3g
Duration                                 : 2h 8mn
Bit rate mode                            : Variable
Bit rate                                 : 122 bps
Stream size                              : 114 KiB (0%)
Language                                 : English
Encoded date                             : UTC 2015-11-12 19:32:20
Tagged date                              : UTC 2015-11-12 19:32:20

Menu
00:00:00.000                             : 00:00:00.000
00:07:19.356                             : 00:07:19.356
00:17:57.285                             : 00:17:57.285
00:26:04.646                             : 00:26:04.646
00:36:21.179                             : 00:36:21.179
00:42:57.617                             : 00:42:57.617
00:49:40.394                             : 00:49:40.394
00:58:19.621                             : 00:58:19.621
01:06:43.291                             : 01:06:43.291
01:14:39.225                             : 01:14:39.225
01:24:30.607                             : 01:24:30.607
01:32:46.686                             : 01:32:46.686
01:38:38.204                             : 01:38:38.204
01:46:38.934                             : 01:46:38.934
01:54:01.626                             : 01:54:01.626
02:01:09.637                             : 02:01:09.637
02:07:00.196                             : 02:07:00.196

The new file muxed from the same troubled file that plays fine:


Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 2.78 GiB
Duration                                 : 2h 8mn
Overall bit rate mode                    : Variable
Overall bit rate                         : 3 088 Kbps
Encoded date                             : UTC 2016-01-24 21:28:46
Tagged date                              : UTC 2016-01-24 21:28:46

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 8 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 2h 8mn
Bit rate                                 : 2 700 Kbps
Maximum bit rate                         : 18.7 Mbps
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.122
Stream size                              : 2.43 GiB (87%)
Writing library                          : x264 core 146 r2538 121396c
Encoding settings                        : cabac=1 / ref=8 / deblock=1:-1:-1 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=12 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=2pass / mbtree=1 / bitrate=2700 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=62500 / vbv_bufsize=78125 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Encoded date                             : UTC 2015-11-12 19:28:59
Tagged date                              : UTC 2016-01-24 21:29:55

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 2h 8mn
Bit rate mode                            : Variable
Bit rate                                 : 384 Kbps
Maximum bit rate                         : 395 Kbps
Channel(s)                               : 6 channels
Channel positions                        : Front: L C R, Side: L R, LFE
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 353 MiB (12%)
Language                                 : English
Encoded date                             : UTC 2015-11-12 17:17:25
Tagged date                              : UTC 2016-01-24 21:29:55


The problem must be caused either by the subtitle or the chapters.

Edited by Zodler
Posted

so you're playing from kodi when this happens?

Posted

Yes the client has to be Kodi (because it supports subtitles in mp4 perhaps?)

 

I tried iOS Emby and Windows Emby Theater and no problem. Maybe because they don't support subtitles in mp4?

 

Also to test, you have to be patient. You have to at least watch 10-20-30 minutes for it to happen on kodi.

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