Recoding MKV REMUX produces jerky video

[adw_uk]

I would consider myself an experienced user but can't seem to resolve this issue.

Whenever I try to re-encode a REMUXed MKV that has the Microsoft V_MS/VFW/FOURCC / WVC1 Codec the audio is fine but the video is jerky like a number of frames have been removed sequentially as the h.264 encoding is taking place.

I am setting the bit depth per pixel to 0.10 to reduce the files size but doing a 2-pass to retain good quality.

I have tried a number of different frame rate settings but it makes no difference.

Can anyone advise?

Here is the MediaInfo report:

General

Format : Matroska
Format version : Version 2
File size : 24.8 GiB
Duration : 1h 40mn
Overall bit rate mode : Variable
Overall bit rate : 35.3 Mbps
Encoded date : UTC 2011-04-20 02:50:18
Writing application : mkvmerge v4.6.0 ('Still Crazy After All These Years') built on Mar 10 2011 00:50:27
Writing library : libebml v1.2.0 + libmatroska v1.1.0

Video

ID : 1
Format : VC-1
Format profile : Advanced@L3
Codec ID : V_MS/VFW/FOURCC / WVC1
Codec ID/Hint : Microsoft
Duration : 1h 40mn
Width : 1 920 pixels
Height : 1 080 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
Compression mode : Lossy
Language : English
Default : Yes
Forced : No

Audio

ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : MA / Core
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 1h 40mn
Bit rate mode : Variable
Bit rate : Unknown / 1 509 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 : Lossless / Lossy
Language : English
Default : Yes
Forced : No

Any advice from a guru appreciated.

[Wilson.Wang]

Hi,

Please post the dvdfab internal log file.

Thanks!

Wilson

[adw_uk]

dvdfab_internal.log

------ process working ------
0m 00.09s: info, try to open file E:/Remux/MyMovie.mkv
0m 00.24s: info: open successed, iformat = Matroska / WebM
0m 00.24s: info: create config(videoconvert)
0m 00.25s: info: crop value after clone: left = 0 right= 0 top=0 bottom=0 enable=0 mode=0
0m 00.25s: info: use profile(MKV.Default)
0m 00.25s: info: file (.mkv)
0m 00.25s: info: 3D working_mode(disable), 3D format(sbs_lef_right)
0m 00.25s: info: stream input@ Video(0)[codec(vc1) size(1920*1080) fps(24000/1001) interlace(0) duration(6034)sec opcode(compress)]
0m 00.26s: info: perset file config OK !
0m 00.26s: info: set output video frame_rate(24000/1001)
0m 00.26s: info: recommand= 0, Shrink support= 0, enable= 0, cuda_cap= 0 , cpu_count= 8
0m 00.26s: info: stream output Video(0)[codec(h264) size(1920*1080) fps(24000/1001) interlace(0) bitrate(4972) duration(6034)sec]
0m 00.26s: info: stream input@ Audio(1)[codec(dca) channels(6) sample(48000) bitrate(1536000) bitdepth(0) opcode(copy)]
0m 00.26s: info: stream output Audio(1)[codec(dca) channels(6) sample(48000) bitrate(1536000) bitdepth(0) opcode(copy)]
0m 00.27s: info: SubMode(Render) -- Display Only forced Subtitle(false)
0m 00.27s: info: enable multi-thread software decoder, thread count = 8
93m 54.14s: UILog:MsgWork:WorkStatus_Start
0m 01.91s: info: h264_encode: encode param profile(2) level(41) bitrate(4972) crf(-1) interlace(0)
56m 13.29s: info: enable multi-thread software decoder, thread count = 8
56m 13.31s: info: h264_encode: encode param profile(2) level(41) bitrate(4972) crf(-1) interlace(0)
107m 04.00s:
------ process exit ------

[adw_uk]

Handbrake

Using the same source remuxed MKV I have tried Handbrake with a 0.20 quality setting, high profile with DTS HD passthru and it works absolutely fine there isn't a fault with the original file its definitely the way DVDFab 9.1.8.6 is doing the conversion of the Microsoft codec to h.264