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Commands tagged mp4 from sorted by
Terminal - Commands tagged mp4 - 5 results
EXT=MOV; for i in *.$EXT; do HandBrakeCLI -Z Normal --optimize --use-opencl --width 1280 --height 720 -i "${i}" -o "${i//.$EXT}.mp4"; done
for file in $(find . -name *.mp4); do ogv=${file%%.mp4}.ogv; if test "$file" -nt "$ogv"; then echo $file' is newer then '$ogv; ffmpeg2theora $file; fi done
avconv -v warning -f alsa -i default -f x11grab -r 15 -s wxga -i :0.0 -vcodec libx264 -preset ultrafast -threads auto -y -metadata title="Title here" ~/Video/AVCONV_REG.mp4
2012-12-14 13:30:11
User: Vosaxalo
2

Since ffmpeg on Ubuntu is deprecated, now there is avconv.

Please note that the screen area here is set with a predefined format "-s wxga" that is corresponding to "-s 1366x768")

There is also the option to add a title in the metadata of the resulting video.

a=$(xwininfo |gawk 'BEGIN {FS="[x+ \t]*"} /-geometry/ {print int(($3+1)/2)*2"x"int(($4+1)/2)*2"+"$5"+"$6}') ; echo ${a} ; ffmpeg -f x11grab -s ${a} -r 10 -i :0.0 -sameq -f mp4 -s wvga -y /tmp/out.mpg
2012-08-31 14:48:41
User: dwygo
Functions: echo gawk
0

Now we can capture only a specific window (we have to chose by clicking on it)

ffmpeg complains about "Frame size must be a multiple of 2" so we calculate the upper even number with (g)awk trickery.

We remove the grep, we are already using (g)awk here ....why losing time with grep !!! ;)

ffmpeg -f alsa -itsoffset 00:00:02.000 -ac 2 -i hw:0,0 -f x11grab -s $(xwininfo -root | grep 'geometry' | awk '{print $2;}') -r 10 -i :0.0 -sameq -f mp4 -s wvga -y intro.mp4
2010-03-31 09:33:05
User: mohan43u
Functions: awk grep
4

Yet another x11grab using ffmpeg. I also added mic input to the capturing video stream using alsa. Yet I need to find out how to capture audio which is currently playing.