Serviio

Posted: **Fri Feb 17, 2012 9:10 pm**

I was playing a 3D mkv video last night on my Samsung D6420 TV. The playback began to stutter and stop/go, which surprised me because I've been having good success with Seviio for quite some time now. I went to my PC and noticed it was transcoding the file. So I turned transcoding off just to see what would happen. With transcoding off the TV played the file without the stuttering problem. And from what I understand, Samsung D series supports native playback of mkv files.

So my question is, why was Seviio transcoding in the first place? I thought Serviio would only transcode if it was streaming a file to the TV which wasn't natively supported by the TV?

Posted: **Fri Feb 17, 2012 9:55 pm**

as good as i am i cant tell you without the information of the file u were playing.

Posted: **Fri Feb 17, 2012 10:32 pm**

I'll get the media info to you over the weekend.

Posted: **Sat Feb 18, 2012 1:23 am**

Sounds to me that either you are not using the Samsung C/D profile or the mkv file is falsely labled > level 4.2 which will cause serviio to transcode it even though the TV will play it natively. Run Mediainfo to check and the utility to reset the avc level.

Posted: **Tue Feb 21, 2012 1:28 am**

Using the right profile (Samsung C/D).

I've included the Media Info description. Is the video file ok?

Code:: General Unique ID : 204584130312354646414906896760996683206 (0x99E97863B681F41793B8D4FCF4A0DDC6) Complete name : C:\Users\Ross\Videos\Movies\Animation\Despicable Me 3D 2010.mkv Format : Matroska Format version : Version 2 File size : 8.68 GiB Duration : 1h 34mn Overall bit rate : 13.1 Mbps Movie name : DESPICABLE_ME Encoded date : UTC 2011-01-20 22:36:01 Writing application : DVDFab Writing library : libebml v0.7.8 + libmatroska v0.8.1 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L5.1 Format settings, CABAC : Yes Format settings, ReFrames : 2 frames Codec ID : V_MPEG4/ISO/AVC Duration : 1h 34mn Bit rate : 11.3 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.228 Stream size : 7.51 GiB (86%) Writing library : x264 core Default : Yes Forced : No Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177 Audio ID : 2 Format : DTS Format/Info : Digital Theater Systems Codec ID : A_DTS Duration : 1h 34mn Bit rate mode : Constant Bit rate : 1 510 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 24 bits Compression mode : Lossy Stream size : 1 023 MiB (12%) Default : Yes Forced : No Menu 00:00:00.000 : en:(01)00:00:00:000 00:03:22.410 : en:(02)00:03:22:410 00:06:31.891 : en:(03)00:06:31:891 00:12:05.099 : en:(04)00:12:05:099 00:13:50.496 : en:(05)00:13:50:496 00:18:38.826 : en:(06)00:18:38:826 00:23:06.843 : en:(07)00:23:06:843 00:25:56.221 : en:(08)00:25:56:221 00:30:40.839 : en:(09)00:30:40:839 00:34:48.753 : en:(10)00:34:48:753 00:39:43.047 : en:(11)00:39:43:047 00:43:38.365 : en:(12)00:43:38:365 00:48:19.187 : en:(13)00:48:19:187 00:52:52.502 : en:(14)00:52:52:502 00:56:46.111 : en:(15)00:56:46:111 01:02:08.015 : en:(16)01:02:08:015 01:09:23.868 : en:(17)01:09:23:868 01:16:25.455 : en:(18)01:16:25:455 01:22:41.581 : en:(19)01:22:41:581 01:27:35.375 : en:(20)01:27:35:375 01:34:48.432 : en:(21)01:34:48:432

Posted: **Tue Feb 21, 2012 4:31 am**

bimbamboom wrote:I've included the Media Info description. Is the video file ok?

It's not the video file. Since you kindly posted the Media Info for the file, we can see that Media Info detected the video as Level 5.1. The profile uses the Level as a filter to decide which files to transcode. Any file with H.264 video and Level > 4.2 is transcoded.

The profile does not take into account whether the video is 3D or not.

The Level 4.2 is only a rough way of deciding what video needs transcoding. The reason why you can play the file with transcoding turned off, is that in this particular case, transcoding was not really required. Since you can play the file in its native format, the video is ok.

A better question would be, why does the transcoded video stutter?
(To answer that you need someone "as good as Cerberus",

)

Posted: **Tue Feb 21, 2012 11:55 am**

PMI wrote:
bimbamboom wrote:I've included the Media Info description. Is the video file ok?
It's not the video file. Since you kindly posted the Media Info for the file, we can see that Media Info detected the video as Level 5.1. The profile uses the Level as a filter to decide which files to transcode. Any file with H.264 video and Level > 4.2 is transcoded.

The profile does not take into account whether the video is 3D or not.

The Level 4.2 is only a rough way of deciding what video needs transcoding. The reason why you can play the file with transcoding turned off, is that in this particular case, transcoding was not really required. Since you can play the file in its native format, the video is ok.

A better question would be, why does the transcoded video stutter?
(To answer that you need someone "as good as Cerberus", )

answer is bad encoder

use this tool http://wiki.serviio.org/doku.php?id=avceditor to change profile lvl to 4.1 and your sorted.

Posted: **Wed Feb 22, 2012 5:08 pm**

Ok thanks guys, I used the tool and all is ok now.

Serviio

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