ripbot264 and mkv and pixelation and artifacts

[evhfla]

I just started backing up with HD DVD's and my blu-rays to my Windows Home servers, so that not only I will have a backup of my video medias, but I will also be able to stream them to my Xbox 360 extenders using windows media center 7. I have found this method in a post in a forum that I have been using that seems to be almost perfect except that I am getting pixelation and artifacts in some scenes in some of the movies that I have encoded. The method that I am using is as follows:

1. Use RipBot264 and custom settings ( --profile high --level 4.1 --filter 0,0 --ref 3 --bframes 3 --b-adapt 1 --b-pyramid --direct auto --subme 7 --aq-mode 1 --trellis 1 --partitions p8x8,b8x8,i4x4,p4x4 --no-8x8dct --me umh
) to make an mkv file.
2. In RipBot264, I am using 2 Pass Method and the bit rate is being set at 14,436.
3. Once the file is encoded with RipBot, I use DRMSToolbox to end up with .wtv file. The .WTV file is native to Windows Media Center 7 and allows for perfect Fast Fowarding and Rewind.

I don't care about file size, my goal is to get to as close to my original package media as possible, while being able to stream it to the Xbox 360 using Windows Media Center 7. Hence, why my bit rate is set at 15 Mbs, since this is the highest bit rate that the Xbox 360 will support as an extender. I am 90% of the way there, except for the occasional pixelation and artifacts. Is there something in the ripbot cutom settings that is causing the occasional artifacts and pixlation. Any help or thoughts would be greatly appreciated.

[poisondeathray]

Likely a decoder issue. What is the original source?

When you preview the avs script of the original source, is there pixellation/artifacts in those scenes?

Post your .avs script.

Can you post a screenshot or sample?

[evhfla]

Likely a decoder issue. What is the original source?

When you preview the avs script of the original source, is there pixellation/artifacts in those scenes?

Post your .avs script.

Can you post a screenshot or sample?

The original source are my medias (both blu-ray's and Hd-dvd's) ripped to my Windows Homer Server using Any DVD HD.
I am not sure what the .avs script is. Can you please clarify what that is. I am new to this. Obviously, my original package media has no artifacts or pixalation.

[poisondeathray]

Push the properties button. At the top you can toggle "show script" or "show margins". The show script text is the avs file. You copy and paste it back here

When you push preview script, it should open a media player. Seek to where you see the artifacts in the encoded file. Are the artifacts in the preview?

[evhfla]

Push the properties button. At the top you can toggle "show script" or "show margins". The show script text is the avs file. You copy and paste it back here

When you push preview script, it should open a media player. Seek to where you see the artifacts in the encoded file. Are the artifacts in the preview?

Ok, thanks, I am at work right now, I will do it as soon as I get home. In between, any other thoughts are welcome.

[Atak_Snajpera]

USE DEFAULT 4.0 PROFILE!

[evhfla]

USE DEFAULT 4.0 PROFILE!

What is the significant of the 4.0 Profile as opposed to the settings that I used? I want to be able to understand the difference and why it would stop the pixellation and artifacts.

[evhfla]

Here is the avs script as requested:

#MT


#VideoSource

video=DirectShowSource("D:\temp\RipBot264temp\job2 \video.mkv",audio=false).ConvertToYV12()

#Deinterlace

#Decimate

#Crop

#Resize

#Colors

#Denoise

#Subtitles

#AudioSource
LoadPlugin("\\homeserver\Software\Download\RipBot2 64v1.14.5\tools\AviSynth plugins\NicAudio\NicAudio.dll")
audio=NicAC3Source("D:\shares\Videos\Movies\TheMov ie\TheMovieAudio.ac3")
audio=ResampleAudio(audio,48000)
#DownMix
Import("\\homeserver\Software\Download\RipBot264v1 .14.5\Tools\AviSynth plugins\Scripts\DownMixAudio.avs")
audio=DownMix2Stereo(audio)

#Delay

#Tempo

#Normalize

#AudioDub
audio=ConvertAudioTo16bit(audio)
AudioDub(video,audio)

#Triming

#AVSameLength

#ColorSpace
ConvertToRGB

[Atak_Snajpera]

probably this --b-pyramid
BTW. are you sure that DVRMSToolbox does not recompress???

[poisondeathray]

Were there artifacts in the preview?

If there were artifacts in the preview, it was a decoding issue before your encoded your file. When you use DirectShowSource() it will default to your directshow decoder with the highest merit (priority). If this is the case, you might change your decoder or use another source filter like ffmpegsource2()

If you test the encoded video with a software media player eg. mpchc, kmplayer , and there are NO artifacts, then it is likely a DVRMStoolbox or wtv issue

[evhfla]

>> Were there artifacts in the preview?
Not sure. I am running the encoding on a Windowws Home Server Box (Basically, a modified version of Windows Server 2003), that I use RDP to log-in to (It is in a closet with no monitor or keyboard). I am not sure how well I would be able to judge a Video using RDP. I will try to hookup a monitor and keyboard to the server directly tonight.

However, I have kept both the MKV file created by RipBot264 and the WTV file created by DRMToolbox. Although, in my view the quality of the MKV file is better that the WTV File (For example, the MKV file has deeper black level), the artifacts shows up in the same scene in both files.