[skullmonkey]

I have LibreELEC installed on my Raspi2 with the latest Kodi.
I have no problems playing 1080p videos from my Synology NAS. They play smooth. Also streaming over internet is also with no problems, but today I tried playing videos that I have recorded with my iPhone 4,5 and 6 and all of them buffer every 2 seconds. Same wifi, same NAS, same everything.
I tried some cache settings, none of them works.

Any guidance where to look for the problem?

[PatK]

In all likelihood the encode is non-standard and is taking more resources to decode than your system will handle. Check with MediaInfo and compare with other videos that play smoothly. You might have to use some re-coding software like Handbrake to effect smooth play. There is no setting in Kodi that is codec specific.

[skullmonkey]

Isn't the Apples codec standard video codec? I'm not planning to re-code them. Its just a family library that my kids want to watch.

[PatK]

I suspect everything Apple does is proprietary.

FTA: Apple Video is a lossy video compression and decompression algorithm (codec) developed by Apple Inc. and first released as part of QuickTime 1.0 in 1991. The codec is also known as QuickTime Video, by its FourCC RPZA

https://en.wikipedia.org/wiki/Apple_Video

[skullmonkey]

And kodi have problems decoding QuickTime video...? I dont think so.

[PatK]

So they should play fine, or perhaps MediaInfo would show a difference and comparison with other videos that play smoothly.

https://mediaarea.net/en/MediaInfo/Download/Ubuntu

[skullmonkey]

This is the export from one of the files I try to play but it simply pauses then continue multiple times. Its taken with iPhone 5. Almost all of the files does this.

General
Format                                   : MPEG-4
Format profile                           : QuickTime
Codec ID                                 : qt   0000.00 (qt  )
File size                                : 42.7 MiB
Duration                                 : 33 s 570 ms
Overall bit rate                         : 10.7 Mb/s
Encoded date                             : UTC 2016-01-13 14:46:14
Tagged date                              : UTC 2016-01-13 14:46:48
Writing library                          : Apple QuickTime
com.apple.quicktime.make                 : Apple
com.apple.quicktime.model                : iPhone 4S
com.apple.quicktime.software             : 9.2
com.apple.quicktime.creationdate         : 2016-01-13T15:46:14+0100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Format settings                          : 1 Ref Frames
Format settings, CABAC                   : No
Format settings, RefFrames               : 1 frame
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 33 s 570 ms
Bit rate                                 : 10.6 Mb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Rotation                                 : 90°
Frame rate mode                          : Variable
Frame rate                               : 24.000 FPS
Minimum frame rate                       : 23.077 FPS
Maximum frame rate                       : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.479
Stream size                              : 42.4 MiB (99%)
Title                                    : Core Media Video
Encoded date                             : UTC 2016-01-13 14:46:14
Tagged date                              : UTC 2016-01-13 14:46:48
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : mp4a-40-2
Duration                                 : 33 s 568 ms
Source duration                          : 33 s 622 ms
Bit rate mode                            : Constant
Bit rate                                 : 64.0 kb/s
Channel(s)                               : 1 channel
Channel positions                        : Front: C
Sampling rate                            : 44.1 kHz
Frame rate                               : 43.066 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 259 KiB (1%)
Source stream size                       : 260 KiB (1%)
Title                                    : Core Media Audio
Encoded date                             : UTC 2016-01-13 14:46:14
Tagged date                              : UTC 2016-01-13 14:46:48

Other #1
Type                                     : meta
Duration                                 : 33 s 570 ms
Bit rate mode                            : VBR

Other #2
Type                                     : meta
Duration                                 : 33 s 570 ms
Bit rate mode                            : CBR

Thanks,
S@

[fritsch]

Can you post your Debug Log ?