3D MVC MKV to 2D MKV

MKV playback, recompression, remuxing, codec packs, players, howtos, etc.
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syrist
Posts: 2
Joined: Mon Aug 26, 2019 1:05 pm

3D MVC MKV to 2D MKV

Post by syrist » Mon Aug 26, 2019 1:09 pm

Hi, I have a 3D movie that was ripped using MakeMKV to a 3D MVC MKV file. I want to re-encode the file to just a standard 2D MKV... essentially just keeping the left eye information and discarding the right eye. I realize I can just take the left eye video from the original source disc... but I want to learn how to extract the left eye from a 3D MVC MKV.

Here's the video info:

Code: Select all

ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Stereo High@L4.1 / High@L4.1
MultiView_Count                          : 2
MultiView_Layout                         : Both Eyes laced in one block (left eye first)
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Format settings, GOP                     : M=1, N=10
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 38 min 50 s
Bit rate mode                            : Variable
Bit rate                                 : 44.1 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.888
Stream size                              : 12.0 GiB (95%)
Title                                    : MPEG-4 AVC Video / 17827-26305 kbps / 1080p / 23,976 fps / 16:9 / High Profile 4.1
Language                                 : English
Default                                  : Yes
Forced                                   : No
Any suggestions? Maybe using an avisynth script with x264? Thanks.

Grauhaar
Posts: 287
Joined: Thu Sep 15, 2016 3:46 pm

Re: 3D MVC MKV to 2D MKV

Post by Grauhaar » Mon Aug 26, 2019 2:46 pm

No idea to do this, because it is one stream.

But, please note, in case you can solve this. The real framerate ist reduced to the half (11,98fps). I think, this is not looking very good.

syrist
Posts: 2
Joined: Mon Aug 26, 2019 1:05 pm

Re: 3D MVC MKV to 2D MKV

Post by syrist » Mon Aug 26, 2019 5:45 pm

I originally tried MeGUI but it gave me a file indexing error. So I then tried the x264 encoder in Avidemux and that worked great. I guess it recognized the Stereo AVC and just discarded the right eye info. Here's the info from the resulting video:

Code: Select all

ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L5
Format settings                          : CABAC / 5 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 5 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 38 min 50 s
Bit rate                                 : 9 821 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.198
Stream size                              : 2.66 GiB (85%)
Writing library                          : x264 core 146 r2538 121396c
Encoding settings                        : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=19.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Default                                  : Yes
Forced                                   : No

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