rishabh9

<?xml version="1.0"?>

<!DOCTYPE suppressions PUBLIC
  "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
  "https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
  <suppress checks="." files="[\\/]generated-sources[\\/]"/>
  <suppress checks="." files="[\\/]src/test/java[\\/]"/>
</suppressions>

rishabh9

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
  "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
  "https://checkstyle.org/dtds/configuration_1_3.dtd">

<!--
  Checkstyle configuration that checks the sun coding conventions from:
    - the Java Language Specification at
      https://docs.oracle.com/javase/specs/jls/se11/html/index.html
    - the Sun Code Conventions at https://www.oracle.com/technetwork/java/codeconvtoc-136057.html

rishabh9

daemon=1800                             # check every 300 seconds
syslog=yes                              # log update msgs to syslog
mail=root                               # mail all msgs to root
mail-failure=root                       # mail failed update msgs to root
pid=/var/run/ddclient.pid               # record PID in file.
ssl=yes                                 # use ssl-support.  Works with
                                        # ssl-library

use=web, web=checkip.dyndns.com/, web-skip='IP Address'
cache=/tmp/ddclient.cache

rishabh9

1. Introduction

In my attempt to learn and use JavaCPP-Presets (specifically for FFmpeg) and debugging the crashes in my project, I spent a lot of my time on building JavaCPP-Presets and FFmpeg. To ensure no one else faces the same fate as mine, I am preparing this document. It documents the following specific goals only:

• Building JavaCPP
• Building JavaCPP preset for FFMPEG
• Building it all on Ubuntu 16.04
• Supporting linux-x86_64 platform only

2. Setting up your build machine

rishabh9

#!/bin/sh

# Reference: http://roboojack.blogspot.in/2014/12/bulk-upload-your-local-maven-artifacts.html

if [ "$#" -ne 3 ] || ! [ -d "$1" ]; then
    echo "Usage:"
    echo "       bash run.sh <repoRootFolder> <repositoryId> <repositoryUrl>"
    echo ""
    echo ""
    echo "       Where..."

rishabh9

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/zzz/movie.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41isomavc1
    creation_time   : 2017-05-04T16:02:52.000000Z
  Duration: 00:02:00.17, start: 0.000000, bitrate: 22217 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 4096x2048 [SAR 1:1 DAR 2:1], 21957 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2017-05-04T16:02:52.000000Z

rishabh9

See my DASH-IF presentation from October, 2014:
https://s3.amazonaws.com/misc.meltymedia/dash-if-reveal/index.html#/

1. encode multiple bitrates with keyframe alignment:
   ffmpeg -i ~/Movies/5D2_Portrait.MOV -s 1280x720 -c:v libx264 -b:v 1450k -bf 2 \
     -g 90 -sc_threshold 0 -c:a aac -strict experimental -b:a 96k -ar 32000 out.mp4

   My input was 30 fps = 3000 ms. If it were 29.97, then a GOP size of 90 frames will yield a base segment
   size of 3003 milliseconds. You can make the segment size some multiple of this, e.g.: 6006, 9009, 12012.

rishabh9

⌘ CMD+⇧ SHIFT+. reveals hidden files in Finder and Open/Save dialogs.

---

You can also press ⌘ CMD+⇧ SHIFT+G and type the path to the hidden folder, just like in Terminal (⇥ TAB autocompletion also works).

rishabh9

Cleaning up containers/images

1. docker rm -v $(docker ps -a -q -f status=exited)
2. docker rmi $(docker images -f "dangling=true" -q)

Cleaning up volumes

1. docker volume ls -qf dangling=true
2. docker volume rm $(docker volume ls -qf dangling=true) or alternatively docker volume ls -qf dangling=true | xargs -r docker volume rm

rishabh9

# change directory to project root
sbt
testOnly packageName.ClassNameTest -- -z "packageName.ClassNameTest.testMethodName"