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Codec for Matroska


claytonb

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claytonb

I originally used the Haali's codec to playback .MKV files on XBOX in WMC, but some MKV files would freeze, so I removed them and installed Sharks 007 and now it's not freezing but throughout the show it would start pixelating, they play ok directly on my computer.

Can some recommend a good codec for MKV?

 

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jordy

Try LAV filters. All my MKVs play fine using them. You should be able to set up Sharks to use them.

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jordy

If it is the codec causing the pixelation, I would expect that it would happen for the whole movie/video not just parts of it (that's if I understand your post). If it only happens in part of the vid - it could be something else. Look to see if anything is overloading your server during the pixelation.

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claytonb

Yes that's right sometimes not all the time.

Nothing is overloading when I play the video,

this is what it's looking like

5583787456b81_IMG_0434.jpg

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jordy

If you look at the background of the shot (picture on wall) it is perfectly defined and not pixelated at all. I think that the face is meant to be shown that way. Do you have any other vids that display the pixelation?

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claytonb

the background of the picture is my bedroom :lol:

yeh all MKV files have this problem in this series, I'll try some from another show and report back

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jordy

haha. I thought the whole thing was a screen grab rather than a photo complete with reflection...

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jordy

are you watching on the server or another pc/player? if you are not watching on the server then it may be transcoding and the bitrate is way too low, this canm be adjusted in the app you are using eg Android or win 8.1 app etc

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jordy

xbox doesn't play MKV natively. I use Emby Classic on my 360 and never have any pixelation problems playing MKVs which make up about 90% of my vids.

 

edit: So, if they play ok in Classic on your server they should play ok on the xbox. if not then the only thing I can think of is a network throughput issue

Edited by jordy
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claytonb

I use Emby Classic also on my 360, I've done a clean install on my computer so I think it's a codec issue

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jordy

what do you use to play back "directly" on the server? Emby Classic or someting like VLC. If VLC then it uses it's own codecs. so Sharks will not have any effect on that.

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dansblackcat

Haali Splitter is just a tool used to open .MKV files.  MKV isn't a format, it's just a container that holds video, audio, subs etc.

The codec required for playback will depend on what format media is in the MKV.  Mpeg, H264 etc...

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claytonb

Yes Jordy using MB Classic on XBOX

Should I recode them using VidCoder?

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jordy

Can you play them without pixelation on the server pc using WMC/Emby Classic? (not using the Emby web Gui or in VLC or any other external program). If they play correctly in Classic on the server they should play ok on the Xbox using WMC/Emby for XBox360.

Did you encode them yourself or get them from the internet? I use both here and no problems with either. When encoding my own stuff I use the x264 codec. Do you know what codec is used in your files? As @@dansblackcat said - it's not about the .MKV "container", it's about whats inside it that makes the difference.

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claytonb

Yes it plays perfectly on the server using WMC/Emby Classic the server monitor is 23" and the TV is 42" could be the fact that it has been enlarged on the TV side?

I downloaded it from the Internet. what program to use to check the file codec's?

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dansblackcat

I use Gspot codec appliance, well I used to.  It's really old and maybe there are newer better programs around?

Looking for a correct codec is something I rarely do these days.

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jordy

Mediainfo Is the go. It's what Emby uses to determine the video codec & bitrate etc

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jordy

If it plays well on the server using classic and you are using Emby classic for xbox on the 360 then I'm out of suggestions. Perhaps someone else can chime in. Are you sure your network is up to it?

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claytonb

I tried playing another MKV file in the next Season of this show and the same thing happens, then I played another video from a different show and they play ok, so it looks like it's the encoding of those files, I get the info of them and post back soon 

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claytonb

Here is the file info, another this also it freezes now and then for a few seconds

 

General
Unique ID                                : 176983732764266880559280269029452537250 (0x8525D3BA347BA1D8B6C1DE8CF96BDDA2)
Complete name                            : E:\TV Shows\Leverage\Season 4\Leverage - 4x08 - The Boiler Room Job.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 510 MiB
Duration                                 : 41mn 34s
Overall bit rate                         : 1 713 Kbps
Encoded date                             : UTC 2012-05-08 22:18:51
Writing application                      : mkvmerge v5.0.1 ('Es ist Sommer') built on Oct  9 2011 11:55:43
Writing library                          : libebml v1.2.2 + libmatroska v1.3.0

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L3.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 41mn 34s
Bit rate                                 : 1 264 Kbps
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)                       : 0.057
Stream size                              : 366 MiB (72%)
Writing library                          : x264 core 119 r2106 07efeb4
Encoding settings                        : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=2pass / mbtree=1 / bitrate=1264 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Default                                  : Yes
Forced                                   : No

Audio
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : A_AC3
Duration                                 : 41mn 34s
Bit rate mode                            : Constant
Bit rate                                 : 448 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                              : 133 MiB (26%)
Language                                 : English
Default                                  : Yes
Forced                                   : No

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hakras

I thought I'd chime in my experience as well.  I have been using MBC for years and only recently noticed the same pixelation.  I've been using Shark007 for years and have only recently encountered this.  I have recently been encoding using the WMV.  Since those play native (no transcode needed), they DO NOT experience this issue.  For me, this is only happening on MKV files.  I use XBOX 360s for 100% of my viewing throughout the house.  I doubt this is a bandwidth, network issue.  I use the native Windows Media Center for live and recorded television.  I also use NetFlix daily.  There are no issues streaming at all.  I only see this pixelation during MVK viewing through Emby.  The movies start fine, but over time become pixelated.

 

Media Browser Classic: 3.0.266.0

Media Browser Server: 3.0.5621.4

Shark007 Advanced Codecs: 5.1.1

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I doubt it will make a difference with this but update to the latest release of Emby WMC as it will provide other benefits.

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