gwparikh

On-the-fly Video Converting and End-to-End Streaming With FFMPEG and netcat

Transcoding & Sending:

ssh -R <port>:localhost:<port> <host_with_content> ffmpeg -i <input_file> -c:v libx264 -q 1 -c:a libmp3lame -f avi pipe:1 | nc localhost <port>

Playing:

gwparikh

#!/usr/bin/python

import sys
import os, traceback

try:
    pass    # put code that may fail here
except:
    print traceback.format_exc()              # print the exception
    os.environ['PYTHONINSPECT'] = 'Y'         # start interactive/inspect mode (like using the -i option)

gwparikh

# Make the images
# (used parallel to speed it up with multiple jobs, but this may not be necessary; haven't tested it)
# fps=1/60 is 1 frame per minute (1/60th frame per second)
parallel 'ffmpeg -i {} -vf fps=1/60 imgs/{.}_%03d.jpg' ::: vidfiles*.avi

# Recombine them
ffmpeg -r <fps> -pattern_type glob -i 'vidimages*.jpg' -c:v libx264 timelapse.avi

gwparikh

alias flatten='if dlist=`ls -d */`; then for d in $dlist; do mv -n $d/* ./; done && rmdir $dlist || echo "Error removing directories. There are probably conflicting files." ; else echo "No directories to flatten"; fi'

gwparikh

Manual Nexus Update With TWRP, SuperSU, and ElementalX

• (hopefully) instructions for taking OTA updates when TWRP recovery is installed

• Will update, reflash TWRP, regain root, and (optionally) reinstall custom kernel

  1. Download these things:

  ---

  • latest factory image (what you're updating to)
  • latest TWRP
  • latest SuperSU

• (Optional) latest ElementalX

gwparikh

Investigating Strange Behavior on QNAP NAS Server

TL;DR - It's mining Monero (XMR), hidden under the guise of the McAfee app. Remove it (who wants McAfee anyways?).

Long Version

After a reboot, logging in over SSH and checking for active screen sessions revealed this:

[~] # screen -ls