ffmpeg Raspberry Pi 2 4k -> 1080 encoding
 

I installed ffmpeg on the Raspberry Pi 2, and even using all the cores to compile it took over 30 minutes.

Mostly impractical but I could see someone loading a bunch of videos onto the Pi and just running a cron job that would encode the videos differently, slice them up, or extract images. $5 a year for electricity that bad, ~5 watts humming away.

Still the newer intel chips are actually more efficient per unit of power than the Pi is.

Here's the basic instructions to follow: Installing FFMPEG for Raspberry Pi – Jeff Thompson

Here's the original 4k video: Elysium 2013 2160p - 1 Minute Sample Footage - Free 4K Sample Footage

The Pi 2 encoded version: https://dl.dropboxusercontent.com/u/...080_sample.mp4

Doesn't look very good but still neat, took over 30 minutes to render. The last line means that the Pi has to render for around 25-30 seconds for every second of footage. Still if you have it sitting there all the time could be useful just running hot all the time. :)

I don't know the ins and outs of ffmpeg and what settings are best, so it's just shooting at the hip with this. These commands works in the link.
cheat sheat for ffmpeg 4k arguments: https://nwgat.ninja/4kultrahd-encoding-cheatsheet/

Below is the initial command line argument to the readout of the rendering progress.


http://i.imgur.com/EsXT56t.png

Raspberry Pi is a cool little toy, had the first one and the current third version looks really interesting with wifi and other improvements..

Have to set a reminder for myself to buy Raspberry Pi and Arduino when I'll have enough time to play with them.

An Odroid C1+ (1.5GHz) or C2 (2GHz, ARM8 64 bit) shits all over a Pi 2 (0.9GHz) or Pi 3 (1.2GHz). The C1+ is actually cheaper than the Pi by a few bucks.

Looks sweet any idea why U3 is dicontunued?

Odroid Xu3 is even crazier, wonder how loud the active cooler is..

XU4 is the current model.

XU4 looks amazing by specs. Very tempted and it's not even latex :-)

Sometimes I want to be a nerd, but then I remember I need to make money.. :winkwink:

Sometimes I'm nerd, but then I remember I'm a tranny too. We all have it one way or the other. :thumbsup

Not always mutually exclusive :2 cents:

I'm about to order bunch Raspberry Pi 3's when I can find someone with them in stock, for a money project.

I was kidding. Everyone to his own.

Money ,like bitcoins? It would take ages to harvest a dime. Or you mean sth else?

All of the Odroids also feature a nice flashing blue "heartbeat" light. The blink rate varies due to the CPU load. I can see an XU4 blinking in my peripheral vision right now. Does the Pi have that sexy feature? Nope! :error

http://packetpushers.net/wp-content/...pock_nerds.jpg


:2 cents: