Due to work and a new baby I’ve been largely AFC (away from community) for the past 7 months or so. I’ve been minimally involved in community events, bug triaging, qa testing, etc, but nothing significant to speak of. Things are settling down now, and I can’t wait to get back into the ring! Some of my goals over the next few months: 5 events across Florida for the Global Jam, Pump Up Ubuntu-US, get more involved with server QA, and (finally) get started on becoming a MOTU Ubuntu Developer.

In more exciting developments, I want to send hearty congratulations to Christophe Sauthier (Huats)! A few days back he became the father of a gorgeous baby boy.  Wish you and your family all the best my friend!

Found this nice summary of ffmpeg commands on catswhocode.com:
http://www.catswhocode.com/blog/19-ffmpeg-commands-for-all-needs

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Ffmpeg

Getting infos from a video file

ffmpeg -i video.avi

Turn X images to a video sequence

ffmpeg -f image2 -i image%d.jpg video.mpg

This command will transform all the images from the current
directory (named image1.jpg, image2.jpg, etc…) to a video file named
video.mpg.

Turn a video to X images

ffmpeg -i video.mpg image%d.jpg

This command will generate the files named image1.jpg, image2.jpg, …

The following image formats are also availables : PGM, PPM, PAM, PGMYUV, JPEG, GIF, PNG, TIFF, SGI.

Encode a video sequence for the iPpod/iPhone

ffmpeg -i source_video.avi input -acodec aac -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -flags +4mv+trell -aic 2 -cmp 2 -subcmp 2 -s 320x180 -title X final_video.mp4

Explanations :

• Source : source_video.avi
• Audio codec : aac
• Audio bitrate : 128kb/s
• Video codec : mpeg4
• Video bitrate : 1200kb/s
• Video size : 320px par 180px
• Generated video : final_video.mp4

Encode video for the PSP

ffmpeg -i source_video.avi -b 300 -s 320x240 -vcodec xvid -ab 32 -ar 24000 -acodec aac final_video.mp4

Explanations :

• Source : source_video.avi
• Audio codec : aac
• Audio bitrate : 32kb/s
• Video codec : xvid
• Video bitrate : 1200kb/s
• Video size : 320px par 180px
• Generated video : final_video.mp4

Extracting sound from a video, and save it as Mp3

ffmpeg -i source_video.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 sound.mp3

Explanations :

• Source video : source_video.avi
• Audio bitrate : 192kb/s
• output format : mp3
• Generated sound : sound.mp3

Convert a wav file to Mp3

ffmpeg -i son_origine.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 son_final.mp3

Convert .avi video to .mpg

ffmpeg -i video_origine.avi video_finale.mpg

Convert .mpg to .avi

ffmpeg -i video_origine.mpg video_finale.avi

Convert .avi to animated gif(uncompressed)

ffmpeg -i video_origine.avi gif_anime.gif

Mix a video with a sound file

ffmpeg -i son.wav -i video_origine.avi video_finale.mpg

Convert .avi to .flv

ffmpeg -i video_origine.avi -ab 56 -ar 44100 -b 200 -r 15 -s 320x240 -f flv video_finale.flv

Convert .avi to dv

ffmpeg -i video_origine.avi -s pal -r pal -aspect 4:3 -ar 48000 -ac 2 video_finale.dv

Or:

ffmpeg -i video_origine.avi -target pal-dv video_finale.dv

Convert .avi to mpeg for dvd players

ffmpeg -i source_video.avi -target pal-dvd -ps 2000000000 -aspect 16:9 finale_video.mpeg

Explanations :

• target pal-dvd : Output format
• ps 2000000000 maximum size for the output file, in bits (here, 2 Gb)
• aspect 16:9 : Widescreen

Compress .avi to divx

ffmpeg -i video_origine.avi -s 320x240 -vcodec msmpeg4v2 video_finale.avi

Compress Ogg Theora to Mpeg dvd

ffmpeg -i film_sortie_cinelerra.ogm -s 720x576 -vcodec mpeg2video -acodec mp3 film_terminée.mpg

Compress .avi to SVCD mpeg2

NTSC format:

ffmpeg -i video_origine.avi -target ntsc-svcd video_finale.mpg

PAL format:

ffmpeg -i video_origine.avi -target pal-svcd video_finale.mpg

Compress .avi to VCD mpeg2

NTSC format:

ffmpeg -i video_origine.avi -target ntsc-vcd video_finale.mpg

PAL format:

ffmpeg -i video_origine.avi -target pal-vcd video_finale.mpg

Multi-pass encoding with ffmpeg

ffmpeg -i fichierentree -pass 2 -passlogfile ffmpeg2pass fichiersortie-2

I didnt use to hate mono, but every time Jo Shields talks i edge closer in that direction.  Insulting people while chiding them for insulting people is inane.  Hiding the insult behind sarcasm isn’t very creative or particularly intelligent.

I respect your contributions to Debian and Ubuntu.  You’re already making your case by contributing to a better user experience.  How about you take your own advice and quit contributing to the noise?

And FWIW, there is already a quite popular Ubuntu-based distro that is mono free.  Its called Kubuntu.

Josh & Nick, or is that Nick & Josh?, rolled out Ubuntu Podcast #31 the other day.  I’m really digging the use of the <video> tag in modern browsers.  As more and more shows start to use it, hopefully the pressure on legacy browser makers to support open video will increase.

Nice job, as usual, guys!  And dig the hair!!!!