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[eggyokeo]

hi,
I read on this forum that 1.08 beta is supposed to allow support for MKV files?
does that mean it transcodes them?

I guess i am not sure what they mean by " support", i trying playing a MKV file from DNS323 with 1.08 thru the Upnp  (from my PS3), but no getting anywhere.

cheers

[nohelp]

Support means it will display them. Your player (PS3 in this case) still needs to support and transcode the mkv files.

[krenkey]

I stream my mkv files constantly to my PS3 without any problems whatsoever running 1.08

[ttmcmurry]

What are you using to stream MKV to your PS3?  The PS3 does not support MKV even with firmware 3.00 for PS3 coming out shortly.

FWIW, if I downloaded TwonkyMedia Server to my PC and transcoded MKV videos from my 1.08 DNS-323 to my PS3, that would work just fine because Twonky would do the hard work for me. 

Heck, TVersity does the same thing.

[eggyokeo]

hi krenkey,
interested to know how do you stream exactly to ps3? do rename file or convert? or play as mkv directly?

only way i have found is to convert files to MPEG2 first (using MKV2VOB program) then those files will play off DNS323 even with firmware 1.06.

However MKV files I have never been able to play directly off 323 media server from PS3.

cheers'

[darkmantis]

i have a screenplay pro hd and i have to convert everything to mpeg-4 in an avi container and I use a free program called, "super", Handbreak and Media Coder. Dns-323 streams everything across the network in a superb fashion where screenplay can easily play it and I never get a stutter! perfect device..

[ttmcmurry]

The only MPEG-4 that works within an .avi container is MPEG-4 AVC (h.263) or better known as DivX/XviD - and it's not as advanced as MPEG-4 AVS (h.264). 

If you had a choice in the matter, use h.264 (high profile 4.1 & quantizer 22) and mux it into a .m2ts instead.  Better quality at lower bitrate.  The PS3 accepts this format quite gracefully.

[darkmantis]

Below is the output from a standard conversion using Mpeg-4 v.263 L1. I have a 67" HD samsung and I can't tell the difference between the pre-coded 12,000 stream vs. the 9925 bitrate on 1080. I convert all my programs using this because the chip within the screenplay pro can't view v.264 mpeg 4 streams, m2ts. I am limited on my availability of codecs because of this device, but I'm looking to buy the popcorn hour which supports all mkvs, m2ts, etc.. but for now, this device works great when streaming data across the network



: AVI
Format/Info                      : Audio Video Interleave
Format profile                   : OpenDML
File size                        : 7.26 GiB
Duration                         : 1h 44mn
Overall bit rate                 : 9 925 Kbps
Director                         : created.with.SUPER(C).v2009.bld.36
Writing application              : SUPER(C) - by eRightSoft

Video
Format                           : MPEG-4 Visual
Format profile                   : Simple@L1
Format settings, BVOP            : No
Format settings, QPel            : No
Format settings, GMC             : No warppoints
Format settings, Matrix          : Default (H.263)
Codec ID                         : DX50
Codec ID/Hint                    : DivX 5
Duration                         : 14mn 25s
Bit rate                         : 69.7 Mbps
Width                            : 1 920 pixels
Height                           : 816 pixels
Display aspect ratio             : 2.35
Frame rate                       : 23.976 fps
Resolution                       : 24 bits
Colorimetry                      : 4:2:0
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 1.855
Stream size                      : 7.02 GiB (97%)
Writing library                  : SUPER(C)   

Audio
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 3
Codec ID                         : 55
Codec ID/Hint                    : MP3
Duration                         : 1h 44mn
Bit rate mode                    : Constant
Bit rate                         : 320 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 48.0 KHz
Resolution                       : 16 bits
Stream size                      : 240 MiB (3%)
Alignment                        : Aligned on interleaves
Interleave, duration             : 24 ms (0.58 video frame)
Interleave, preload duration     : 504 ms
Writing library                  : LAME3.97

[ttmcmurry]

I'm curious if you have considered encoding with a quality quantizer instead of a target bitrate.  I switched to quality encoding about four years ago and have found it's the best bang for the buck.  You end up with a video that has higher bitrates where it needs it and lower bitrates when the motion slows down; all within the constraints of the encode profile you're using.  Plus, both DVD and Blu-Ray use variable bitrate encoding anyway.

FWIW, even though I'm using h.264, I encode at quantizer (q=22) - and when transcoding Blu-Ray source video, I'm getting 65% compression (again, motion & color data depending).  I also can't tell the difference between my output and the original. 

IIRC, some earlier programs had trouble with VBR video & VBR audio, despite being synched in the .avi.  Have you tried it?  I see everything you do is CBR (constant bit rate).

[darkmantis]

I have found that I get pretty good quality when I set the bitrate at 9600, which is the max for codec that I have to use in order to play it on my device. I wasn't aware of the quality versus bitrate, I thought that was basically the same thing. I use a program called "MediaCoder" when Super can't do the job and that has the option of Quality vs. bitrate. I'm going to encode the same video trying different settings like you suggested.

For the most part, I use Super to re-encode 90 % of my videos, but only use mediacoder or handbrake when super can't do it. Previous versions of mediacoder are quite buggy, but the latest one seems rather stable.

I'll give it shot, for sure.