I'm trying to join together two videos on top of each other. I already did these two ffmpeg commands:
ffmpeg -i 2_Out_of_Control.VOB -aspect 16:9 \
-vf "yadif=0:-1:0,crop=w=714:h=476:x=6:y=0,scale=1280:720,boxblur=lp=13" \
-c:v libx264 -preset medium \
-c:a copy \
'2(blurred)Out_of_Control.mp4'
ffmpeg -i 2_Out_of_Control.VOB \
-vf "yadif=0:-1:0,crop=w=714:h=476:x=6:y=0,scale=1080:720" \
-c:v libx264 -preset medium \
-c:a copy \
'2(clear)Out_of_Control.mp4'
I'm currently stuck on making the "clear" version centered and on top of the "blurred" version. I'm not sure how to do that. Only achieved it by using OpenShot but yeah, would prefer if there is an ffmpeg command to merge the two videos on top of each other.
Input file details:
$ ffmpeg -i 2_Out_of_Control.VOB
ffmpeg version git-2013-10-03-c7fe2a3 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 4 2013 05:22:06 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --prefix=/home/username/ffmpeg_build --extra-cflags=-I/home/username/ffmpeg_build/include --extra-ldflags=-L/home/username/ffmpeg_build/lib --bindir=/home/username/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
libavutil 52. 46.100 / 52. 46.100
libavcodec 55. 34.100 / 55. 34.100
libavformat 55. 19.100 / 55. 19.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 88.101 / 3. 88.101
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Input #0, mpeg, from '2_Out_of_Control.VOB':
Duration: 00:05:00.01, start: 0.500000, bitrate: 4574 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m), 720x480 [SAR 8:9 DAR 4:3], max. 9334 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 384 kb/s
At least one output file must be specified