Local build of ffmpeg

This was going to be a highminded post about fairy tales and morphology but instead i am going to record my trials and trivails of running ffmpeg on amazon's map-reduce.

So - what i am doing is adding a cached directory of ffmpeg to every map-reduce computer i use


#!/usr/bin/bash
./elastic-mapreduce --create --stream --alive --name $1 \
-c credentials.json \
--input s3n://13bit.videoout \
--mapper s3://13bit.scripts/compression.py \
--reduce s3://13bit.scripts/reduce.py \
--output s3n://13bit.videoout.ts \
--log-uri s3n://13bit.log \
--cache-archive s3n://13bit.scripts/ffmpeg.zip#ffmpeg

in order to build ffmpeg i started up a debian sqeeze box via aleatic ami (ami-daf615b3) http://alestic.com/. I then had to update apt-get (apt-get update), install git, download ffmpeg and related libraries and run the ffmpeg configure switch --prefix to set the install directory. I am now zipping it up and testing it on another instance of the squeeze debian - at which point i will start up the map reduce process again

i am also looking at boston terrier art on etsy (thanks to Jane Kim)
http://www.etsy.com/listing/37552859/boston-terrier-dog-art-original-painting
I am doing this while my boston terrier sleeps and farts next to me.

More Adventures with Map Reduce and the Cloud

I am compressing video in the cloud via amazon's EC2/mapreduce/s3/etc... I am using map/reduce for this although it is really not a reduce problem only a map problem and not even that - I just need to spawn a bunch of ffmpeg processes....

The problem is I cant map/reduce on a disk that has ffmpeg. So what I did was compiled map reduce on my machine - zipped it - uploaded it to s3 then added a bootstrap action to unzip and ffmpeg whenever the program starts... lets see how this works - I think I need to recompile on debian though - currently using fedora

As for the arabian nights - i have learned that the arabic oral tradition no longer exists because people sit around in cafes and watch tv instead of telling/listening to stories - ahh technology

More EC2, FFMPEG and video streaming from the cloud

So today I am setting up the compression engine on EC2 to compress video out into 4 formats. I need to do this before I use the segmenter to divide up video out into segments that will then be recompiled on the fly via lexical searches...

Anyway I had a java program downloading my mov files - clips from video out- but it was taking to long. I dont want to have to download the file in order to convert it I want ffmpeg to convert it via http... luckily i found this on stack overload:
http://stackoverflow.com/questions/2677317/how-to-read-remote-video-on-amazon-s3-using-ffmpeg


evermind, I found an easy way to solve my problem.

I set up an amazon cloudfront download distribution pointing to my S3 bucket.
Via cloudfront the files are accessible with ffmpeg over http:

ffmpeg -i "http://subdomain.cloudfront.net/video.mp4" -ss 00:00:10 -vframes 1 -f image2 "image%03d.jpg"