How do you create 3D stereoscopic movies on Linux?

**Yfrwlf** · May 15th, 2011

I've tried Lives, KDenlive, Avidmux, Openshot, Pitivi, and Cinelerra, and I cannot figure out how to merge two movies into a single movie. Cinelerra no doubt has this ability due to its complexity, it just really needs a UI overhaul and lessons in usability since it takes forever just to figure out how to do basic things with it.

Someone made a script to use gStreamer to combine videos here but even after installing the ugly plugins from the multiverse repo on Ubuntu 10.10 so that I have x264enc, I still get the

Code:

Pipeline is PREROLLING ...

of doom, which just sits there waiting and isn't actually doing anything, a common problem with gStreamer apparently...

If mencoder can do the same thing I haven't figured out how.

Does anyone know how to edit movie frames so that you can stick the second video into the same frame on any video editor for Linux out there, or know of a way to use a command line encoder to do so?

I have two 1080p movies that I'd love to be able to merge, creating either one 3840x1080 movie or a 1920x2160 movie.

You'd think there would be more Linux users out there using dual cameras to create 3D movies. Having such a tool is necessary to get this done so that they can be displayed on a 3D TV, or by one of the new fledgling Linux 3D movie players (when is VLC, Totem, or MPlayer going to pick up this support??).

**Ferrat** · July 25th, 2011

Testing it now but seems to be working but not sure yet, will let it go on for a while and see what happens

Nope false alarm, doesn't work, I get further but nothing happens :/

**JustJ** · November 7th, 2011

EDIT: Sorry.. just noticed that you had already linked to my script! I had experienced the prerolling issue during development but it had been ironed out and working ( for me 'only?' it seems ). Have you had any success since then? I'll test the script now that I've upgraded Ubuntu and see if I get the prerolling problem ( which is usually solved by putting in a !queue! to keep it from getting gridlocked).

Edit2: Just tried my script and I'm getting gstreamer errors now as well. I'm on a new laptop and have upgraded 3 versions of Kubuntu so there's been a lot of changes! I'll see if I can track it down as I'll need this capability again sooner or later!

-----

I was looking into this last spring.. sorry I didn't see your message at the time.

I wrote up a script using gstreamer to do this very thing:
http://videomerge3d.sourceforge.net/

I wrote a bit more about it here - including some other example gstreamer command lines:
http://superuser.com/questions/23193.../259068#259068

**JustJ** · November 16th, 2011

FIXED - or at least a workaround.

I uploaded the new version to the Sourceforge page:
http://sourceforge.net/projects/videomerge3d/

--

It seems that the x264 encoder was the source of the problems. After trying a few esoteric options to try to get it to work ( including removing the queue buffer limitations which exhausted my machine and restarted X ) I added in the option to use the ffmpeg library's mpeg4 encoder instead ( now default ). For now.. don't use the x264 encoder. mpeg2 also seemed problematic.

I've also made it print out the gstreamer command with the -norun option so that you can modify it first in case you want to try other encoders ( or bitrates ) etc that I haven't directly supported.

**Yfrwlf** · November 23rd, 2011

I downloaded the latest version from Sourceforge that you uploaded on 11/16 and I don't see any commands referencing the program "mpeg4" or any ffmpeg project-related commands that I could see. Also, the default is still set to x264enc in the default options:

Code:

NUMBER_OF_FILES=0
LAUNCH_ARGS=""
audioenc="faac !"
videoenc="x264enc"
wxh="width=640, height=480"
offset="-640"
avmuxer="avimux"

Maybe you haven't uploaded the newer version yet? ^^

**JustJ** · November 28th, 2011

Hi Yfrwlf,

Thanks for checking it out again.

I just downloaded it from sourceforge and it gave me the newest version.
If you enter it without any arguments it should give you output with a 5th line saying "Warning:h264 is (was) broken - use mpeg4 (default) instead"
and a line further down saying "-mpeg4_b4 bitrate = 4Mb/S (default)" ??

Try running it directly from your download directory:
bash ./videomerge3d

I downloaded it by clicking on videomerge3d on this page:
http://sourceforge.net/projects/videomerge3d/files/

**iceblue11** · February 15th, 2012

I am searching around because this is exactly what I need to do as well. Need to replace Adobe Premier to do 3D editing. But this thread just confused the hell out of me

**fliker09** · March 27th, 2013

./videomerge3d -640 -ano -v Red1.avi Blue1.avi Stereo1.avi
width=640, height=480 ffenc_mpeg4 bitrate=4000000
saving file to Stereo1.avi
./videomerge3d: line 273: [: =: unary operator expected
Running Command: gst-launch-0.10 -v filesrc location=Red1.avi ! decodebin name=Left filesrc location=Blue1.avi ! decodebin name=Right Left. ! videoscale ! ffmpegcolorspace ! video/x-raw-yuv, width=640, height=480 ! videobox border-alpha=0 right=-640 ! queue2 ! mix. Right. ! videoscale ! ffmpegcolorspace ! video/x-raw-yuv, width=640, height=480 ! videobox border-alpha=0 left=-640 ! queue2 ! mix. Left. ! decodebin ! audioconvert ! audiopanorama panorama=1.00 ! queue2 ! addaudio. Right. ! decodebin ! audioconvert ! audiopanorama panorama=-1.00 ! queue2 ! addaudio. adder name=addaudio ! queue2 ! avmux. videomixer name=mix ! ffmpegcolorspace ! ffenc_mpeg4 bitrate=4000000 ! avimux name=avmux ! progressreport name="Encoding Progress" ! filesink location="Stereo1.avi"
Setting pipeline to PAUSED ...
/GstPipeline:pipeline0/GstDecodeBin:Right/GstTypeFindElement:typefind.GstPad:src: caps = video/x-msvideo
/GstPipeline:pipeline0/GstDecodeBin:Right/GstAviDemux:avidemux0.GstPad:sink: caps = video/x-msvideo
/GstPipeline:pipeline0/GstDecodeBin:Left/GstTypeFindElement:typefind.GstPad:src: caps = video/x-msvideo
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstDecodeBin:Left/GstAviDemux:avidemux1.GstPad:sink: caps = video/x-msvideo
/GstPipeline:pipeline0/GstDecodeBin:Left/GstQueue:queue1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Left.GstGhostPad:src0: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Left/GstQueue:queue1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Right/GstQueue:queue0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Right.GstGhostPad:src0: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Right/GstQueue:queue0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Left.GstGhostPad:src0.GstProxyPad:pro xypad5: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstVideoScale:videoscale1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstVideoScale:videoscale1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstDecodeBin:Right.GstGhostPad:src0.GstProxyPad:pr oxypad4: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstVideoBox:videobox0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstVideoBox:videobox0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstQueue2:queue20.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstQueue2:queue20.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstVideoMixer:mix.GstVideoMixerPad:sink_0: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)15023967/1000000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstVideoBox:videobox1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstVideoBox:videobox1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)640, height=(int)480
/GstPipeline:pipeline0/GstQueue2:queue21.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstQueue2:queue21.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstVideoMixer:mix.GstVideoMixerPad:sink_1: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)1280, height=(int)480
/GstPipeline:pipeline0/GstVideoMixer:mix.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)1280, height=(int)480, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp2.GstPad:src: caps = video/x-raw-yuv, width=(int)1280, height=(int)480, framerate=(fraction)120259/8000, format=(fourcc)I420, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp2.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, framerate=(fraction)120259/8000, width=(int)1280, height=(int)480, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/ffenc_mpeg4:ffenc_mpeg40.GstPad:src: caps = video/x-divx, width=(int)1280, height=(int)480, framerate=(fraction)21845/1453, divxversion=(int)5
/GstPipeline:pipeline0/ffenc_mpeg4:ffenc_mpeg40.GstPad:sink: caps = video/x-raw-yuv, width=(int)1280, height=(int)480, framerate=(fraction)120259/8000, format=(fourcc)I420, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstAviMux:avmux.GstPad:video_00: caps = video/x-divx, width=(int)1280, height=(int)480, framerate=(fraction)21845/1453, divxversion=(int)5
^CCaught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
/GstPipeline:pipeline0/GstAviMux:avmux.GstPad:video_00: caps = NULL
/GstPipeline:pipeline0/ffenc_mpeg4:ffenc_mpeg40.GstPad:src: caps = NULL
/GstPipeline:pipeline0/ffenc_mpeg4:ffenc_mpeg40.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp2.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp2.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstVideoMixer:mix.GstVideoMixerPad:sink_1: caps = NULL
/GstPipeline:pipeline0/GstVideoMixer:mix.GstVideoMixerPad:sink_0: caps = NULL
/GstPipeline:pipeline0/GstVideoMixer:mix.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstQueue2:queue21.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstQueue2:queue21.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstQueue2:queue20.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstQueue2:queue20.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstVideoBox:videobox1.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstVideoBox:videobox1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstVideoBox:videobox0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstVideoBox:videobox0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstVideoScale:videoscale1.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstVideoScale:videoscale1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Right.GstGhostPad:src0: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Right/GstQueue:queue0.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Right/GstQueue:queue0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Right/GstAviDemux:avidemux0.GstPad:video_00: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Right/GstAviDemux:avidemux0.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Right/GstTypeFindElement:typefind.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Left.GstGhostPad:src0: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Left/GstQueue:queue1.GstPad:src: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Left/GstQueue:queue1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Left/GstAviDemux:avidemux1.GstPad:video_00: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Left/GstAviDemux:avidemux1.GstPad:sink: caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:Left/GstTypeFindElement:typefind.GstPad:src: caps = NULL
Freeing pipeline ...

- :( What's wrong? Ubuntu 12.10. Note: there is no audio track in both videos (may be this will be important to understand what's wrong :\ )

P.S. I didn't find how to hide the quote

**fliker09** · March 27th, 2013

Found a good link for those who want to create 3D videos:

https://vimeo.com/24555460

What's good about it is the fact you don't need red/cyan filters for your cameras and you can play resulting video using Bino! But you can't play it on a TV which doesn't support 3D. So I am still interested in your script!