On 24.07.2011 21:07, André Weidemann wrote: > Here are two simple lines to convert a jpg image to mpeg2: > > convert $Pict -background '#000000' -resize 1920x1080 -gravity center > -extent 1920x1080 /tmp/test.jpg > ffmpeg -i /tmp/temp.jpg -an -vcodec mpeg2video -b 2500 -s 1920x1080 > -qscale 2 -f mpeg2video $Mpeg > > Note: Depending on your distro, ffmpeg may not support mpeg2 video > encoding. > > > For mpeg4 the ffmpeg line looks like this: > ffmpeg -i /tmp/temp.jpg -an -vcodec mpeg4 -b 2500 -s 1920x1080 -qscale 2 > -threads 4 -f mp4 $Mpeg > > For libx264 it looks like this: > ffmpeg -i /tmp/temp.jpg -an -vcodec libx264 -vpre lossless_ultrafast -s > 1920x1080 -qscale 2 -threads 4 -f mp4 $Mpeg Note that "-f mp4" means the output is not raw mpeg-4/H.264 but in the mp4 file format. For raw video (like mpeg2video in your first example), for MPEG-4 one can use "-f m4v" and for H.264 "-f h264". > The -vpre parameter requires a preset. They can usually be found under > /usr/share/ffmpeg/libx264-*.ffpreset. > > If you want a 10 second video at 25 fps, you can do it like this: > > ffmpeg -loop_input -t 10 -r 25 -i /tmp/temp.jpg -an -vcodec mpeg4 -b > 2500 -s 1920x1080 -qscale 2 -threads 4 -f mp4 $Mpeg > > You may want to adjust the number of threads according to the number of > cores in your machine. > > > André > > _______________________________________________ > vdr mailing list > vdr@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr > -- Anssi Hannula _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
