FFMPEG Installation & Compilation Step

FFMPEG Installation & Compilation

   Click to FFMPEG Installation and Compilation step File

 
Onkar Dubey 

Using Ubuntu 16.04.3 LTS

I successfully figured it out by my self, here is how.

    remove the current ffmpeg by running:

   $ sudo apt-get remove --purge ffmpeg

    Add ppa trusty-media for 14.04:

   $ sudo apt-add-repository ppa:mc3man/trusty-media

    For 16.04, add the following Repo:

   $ sudo apt-add-repository ppa:jonathonf/ffmpeg-3

    Update repo:

   $ sudo apt-get update

    Finally install it:

   $ sudo apt-get install ffmpeg



 

Install the dependencies by typing Link:

$ sudo apt-get update

$ sudo apt-get -y --force-yes install autoconf automake build-essential libass-dev libfreetype6-dev \
libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev  libxcb1-dev libxcb-shm0-dev \
libxcb-xfixes0-dev pkg-config texinfo zlib1g-dev

ffmpeg

$ mkdir /home/user/ffmpeg
$ cd /home/user/ffmpeg
$ wget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
$ tar xjvf ffmpeg-snapshot.tar.bz2
$ cd ffmpeg
$ PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig"      ./configure \
--prefix="$HOME/ffmpeg_build" \
--pkg-config-flags="--static" \
--extra-cflags="-I$HOME/ffmpeg_build/include" \
--extra-ldflags="-L$HOME/ffmpeg_build/lib" \
--bindir="$HOME/bin" \
--enable-gpl \
 ......
 .......
$ PATH="$HOME/bin:$PATH" make
$ make install
$ make distclean

Then execute:

$ home/user/ffmpeg/bin/ffmpeg -i ../input.avs ../videos/output.avi





help:

https://www.wowza.com/docs/how-to-use-ffmpeg-with-wowza-media-server-mpeg-ts
http://ubuntuhandbook.org/index.php/2017/05/install-ffmpeg-3-3-in-ubuntu-16-04-14-04/
http://www.nerdfirst.net/getting-started-with-ffmpeg/





commands:

To target the Audio
$ ffmpeg -i infile.mp3 -b:a 320k outfile.mp3

To To specify bot audio and video bitrates:
$ ffmpeg -i inFile.avi -b:v 1000k -b:a 128k outFile.mp4

Basic Syntax 
ffmpeg -i <input name> -q <quality> <output name>

Specifying quality:
for AVI: ffmpeg -i <input name> -q <quality> <output name>
for MP4: ffmpeg -i <input name> -crf <quality> <output name>

To specify Exact bitrates
for audio: ffmpeg -i <input name> -b:a <bitrat> <output name>
for video: ffmpeg -i <input name> -b:v <bitrate> <output name>

Filter:
audio volume
audio channel map
video crop
video scale
video rotete


1- volume tweak
syntax: ffmpeg -i inputFile -filter:a "volume=2" outputFile

2- channel remapping:
syntax: ffmpeg -i inputFile -filter:a "channelmap=0-0|0-1" outputFile

3- Video croping 
syntax: ffmpeg -i inFile -filter:v "crop=w=2/3*in_w:h=2/3*in_h" outFile

syntax: ffmpeg -i inFile -filter:v "crop=w=640:h=480:x=100:y=200" outFile

4-Scaling 
syntax ffmpeg -i inFile -filter:v "scale=w=640:h=480" outFile

Scaling with airthmatic & variables
ffmpeg -i inFile -filter:v "scale=w=2/3*in_w:h=2/3*in_h" outFile

Proportional Scaling:
ffmpeg -i inFile -filter:v "scale=w=852:h=-1" outFile

5- Rotation
syntax: ffmpeg -i inFile -filter:v "rotate=45*PI/180" outFile

#recap
ffmpeg -i input.avi -vf<filter string> output.avi

 -vf "
filter1 =
 setting1 = value1 :
 setting2 = value2 ,
filter2=
 setting1 = value1 :
 setting2 = value2
 "




************* Stream***********
  ffplay -probesize 32 -sync ext /home/om/om/dangal.mp4



To send video
furst terminal
$ ffmpeg -i /home/om/om/dangal.mp4 -v 0 -vcodec mpeg4 -f mpegts udp://127.0.0.1:23000

second terminal
$ ffplay udp://127.0.0.1:23000


ffmpeg -i /home/om/o/z.mp4 -map 0 -c:v h264_nvenc -preset:v llhq -c:a aac -muxrate 2500k -bufsize 3500k -g 50 -f tee \
"[f=flv:onfail=ignore]rtmp://live.twitch.tv/app/<stream key>|[f=flv:onfail=ignore]rtmp://a.rtmp.youtube.com/live2/<stream key>|local_file.mkv"




Capture Screan 
https://trac.ffmpeg.org/wiki/Capture/Desktop

$ ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+100,200 output.mp4


1-$ ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+100,200 udp://227.30.40.50:1234

2-$ 

                                      Give Something to the world and it will never let you down. 

                                                                                           Onkar Dubey