3D MKV to 2D MKV

[Han Solo1]

Is there a way to convert a 3D MKV file into a 2D MKV?

[Cornucopia]

Yes, there are ways.

Now, what kind of "3D MKV" file do you have?
Dual-stream? Dual-file? Side-by-side? Top/Bottom? Frame-sequential? Field-sequential? Anaglyph? (If anaglyph, your options are VERY limited).

Please be more specific...

Scott

[Han Solo1]

I don't know how much info you need but I'd say it's side by side.

General
Format : Matroska
File size : 4.02 GiB
Duration : 43mn 59s
Overall bit rate : 13.1 Mbps
Encoded date : UTC 2011-03-30 20:36:07
Writing application : mkvmerge v4.6.0 ('Still Crazy After All These Years') built on Mar 10 2011 02:50:32
Writing library : libebml v1.2.0 + libmatroska v1.1.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=24
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 43mn 59s
Bit rate mode : Variable
Bit rate : 11.3 Mbps
Maximum bit rate : 30.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.228
Stream size : 3.48 GiB (86%)
Writing library : x264 core
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 43mn 59s
Bit rate mode : Constant
Bit rate : 1 510 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 : Lossy
Stream size : 475 MiB (12%)
Language : English

[Cornucopia]

I'm at work right now, so can't go further into it.

You could look at the "tutorial/guide" for 3D avi to 2D avi (using AVIDemux), and extrapolate to using MKV. I don't particularly recommend that tute but it'll do.

If it were me, I'd use an AVISynth script and frameserved into x264 encoder.

Basically, to keep full quality in the audio, you'll want to:
Demux to raw streams, leaving the DTS alone.
Crop to 1/2 frame, and resize to full frame on the video.
Re-encode the video to best quality of whatever format works for you.
Re-mux with the saved audio to ? AVI/MKV/MP4, etc.
If you're going to MP4 Yamb is good, if MKV, MKVtoolnix or AVIMuxGui, etc.

Scott

[Han Solo1]

Well I finally got around to work on this yesterday. I used the tutorial for avidemux and it worked well. At first it wasn't able to save the file after the first pass because the audio was DTS. So after that eureka moment I decided to use popcorn to change audio to ac3 first and then work on the mkv with the new ac3 audio. I was trying to use MeGUI but I've never had luck with avisynth. I'm never sure as whether it's installed correctly and always getting an error message there is no function named "Setmtmode". Anyhow thanks.

[prospad]

I would like to convert my 3d MKV to 2D. How can I do this please ? I searched on the Internet and I found nothing.
The 3D movie I want to convert is a SBS (Side By Side). Han solo1, how to use AVIdemux ? I didn't find the option 3D to 2D in this software

General

Format : Matroska
File size : 4.00 GiB
Duration : 1h 48mn
Overall bit rate : 5 285 Kbps
Movie name : TEAM-3D-FQT
Encoded date : UTC 2011-06-22 15:06:04
Writing application : mkvmerge v4.3.0 ('Escape from the Island') built on Sep 5 2010 10:30:51
Writing library : libebml v1.0.0 + libmatroska v1.0.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 48mn
Bit rate mode : Variable
Nominal bit rate : 5 782 Kbps
Maximum bit rate : 40.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.112
Writing library : x264 core 106 r1732 b20059a
Encoding settings : cabac=1 / ref=4 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / 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=6 / sliced_threads=0 / slices=4 / nr=0 / decimate=1 / interlaced=fake / constrained_intra=0 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=2 / weightp=0 / keyint=25 / keyint_min=2 / scenecut=40 / intra_refresh=0 / rc_lookahead=25 / rc=2pass / mbtree=1 / bitrate=5782 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=40000 / vbv_bufsize=30000 / ip_ratio=1.40 / aq=1:1.00 / nal_hrd=vbr
Language : French
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 1h 48mn
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Language : French

[prospad]

waiting answers !!!

[Cornucopia]

You already got the answers!!!

Use the AVIDemux tutorial (listed in the turorials section of this site). Use MKV instead of AVI.

If you need to use AVISynth instead, follow how I suggested in post #4.

Scott

[prospad]

Where is the tutorial I am looking for please ?

[Cornucopia]

https://forum.videohelp.com/threads/329541-How-to-encode-3D-STEREOSCOPIC-to-2D

[prospad]

thanks a lot !!!

[harpreetsingh87]

@ Cornucopia ,
hi, i was following your instructions about cropping the 3d 1080p video file in half and then stretch to fit screen but i am unable to do it so far. i was using MKVToolNix v 8.8.0. i cropped the video as "0,0,960,0" but i dont know how to stretch the video to fit the full screen resolution like 1980*1080p,1270*720p etc

please help