rant verb (ranted, ranting) 1 intrans to talk in a loud, angry, pompous way. 2 tr & intr to declaim in a loud, pompous, self-important way. noun 1 loud, pompous, empty speech. 2 an angry tirade. ranter noun someone, especially a preacher, who rants. ranting noun, adj. rantingly adverb. ETYMOLOGY: 16c: from Dutch ranten to rave.
Monday, December 19, 2011
Virgin Media Netgear VMDG280 Wireless Connection Problems
I was having very annoying wireless connection issues with Virgin's Netgear VMDG280. Most devices would be fine, but the odd one would connect and have wireless access for a few seconds, but then the wireless connection would die, though the device would still report that it was connected. Restarting everything/anything would just repeat the same. Last night I tried reducing the maximum connection speed of the router from 300Mbps to 54Mbps, which seemed to solve the issue completely. I've since put it up to 145Mbps which seems like a happy medium.
Monday, December 05, 2011
Time Lapse with ffmpeg
Because I do it too infrequently to remember, here's how to put together time lapse/stop motion/animation with ffmpeg.
Firstly renumber you images*. Make sure that this script won't overwrite anything.
Then put the images together.
The ffmpeg documentation mentions using the "image file demuxer" -f image2 before the input image file name template, but I haven't found that necessary.
Remember that ffmpeg options act on the next input or output, so for example you can set the frame rate of the animation by using -r x before the input image parameter or set the frame rate of the resultant video by using the same switch before the output filename.
In the above example we also add a sound track, starting 1 second into the track and cut after 70 seconds.
* You're images must be numbered sequentially starting at 1.
Firstly renumber you images*. Make sure that this script won't overwrite anything.
x=1; for i in *.JPG; do counter=$(printf %04d $x); mv "$i" img"$counter".JPG; x=$(($x+1)); done
Then put the images together.
ffmpeg -ss 1 -t 70 -i music.mp3 -r 15 -i img%04d.JPG -b 15M -s 1440x1080 out.avi
The ffmpeg documentation mentions using the "image file demuxer" -f image2 before the input image file name template, but I haven't found that necessary.
Remember that ffmpeg options act on the next input or output, so for example you can set the frame rate of the animation by using -r x before the input image parameter or set the frame rate of the resultant video by using the same switch before the output filename.
In the above example we also add a sound track, starting 1 second into the track and cut after 70 seconds.
* You're images must be numbered sequentially starting at 1.