How to install ffmpeg in wamp server in Windows7

Question: What are Simple steps to install ffmpeg in wamp server in Windows?

1. Download FFmpeg for Windows
   https://ffmpeg.zeranoe.com/builds/
2. Extract the downloaded Zip file.
3. Copy bin/ffmpeg.exe, bin/ffplay.exe and bin/ffprobe.exe from downloaded and paste in C:\Windows\System32
4. Create a folder with name ffmpegtest in path d:/wamp/www (Drive can be different as per wamp installation)
5. Login to Command prompt and go to d:/wamp/www/ffmpegtest using cd command
6. Execute following command (To download composer)

   php -r "readfile('https://getcomposer.org/installer');" | php
   

   
   It will download the composer.phar
7. Execute following command to download PHP-FFMPEG library.
   

   php composer.phar require php-ffmpeg/php-ffmpeg
   

8. Test the FFMPEG with php
   

   include "vendor/autoload.php";
   $ffmpeg = FFMpeg\FFMpeg::create();
   print_r($ffmpeg);
   

   When it print the object, means FFMPEG setup successfully.

Question: What can we do with ffmpeg?
-Cut the video
-Combine two or more videos into one
-Extract the one video portion from main video
-Resize the video
-Extract the audio from video
-Combine photo+audio into video
-Change the sample rate
-Watermarking on vi



Question: What is Bitrate?
Bitrate describes the rate at which bits are transferred in ffmpeg. Bitrate is commonly measured in bits per second (bps),kilobits per second (Kbps), or megabits per second (Mbps).


Question: What is Frame Rate?
the frame rate is the number of frames or images that are projected or displayed per second.


Question: What is demux?
A demux(er) is a module responsible for extracting the contents of a given file/stream format, for instance AVI, OGG, MPEG2, WAV, etc.


Question: How to convert .wav to .mp3?

include "vendor/autoload.php";
$ffmpeg = FFMpeg\FFMpeg::create();
$video = $ffmpeg->open( 'audiofile.wav' );
$audio_format = new FFMpeg\Format\Audio\Mp3();
// Extract the audio into a new file as mp3 and save in folder
$video->save($audio_format, 'audiofile.mp3');

Question: How to transcode a wav to flac?

include "vendor/autoload.php";
$ffmpeg = FFMpeg\FFMpeg::create();
$video = $ffmpeg->open( 'audiofile.wav' );
$audio_format = new FFMpeg\Format\Audio\Mp3();
$video->save($audio_format, 'audiofile.mp3');

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How to create built in web server in PHP?

Question: In which PHP Version Built-in web server come?
PHP 5.4


Question: Can we run php without apache?
Yes, We can run the php independent.


Question: Can we test our application with Built-in web server feature?
Yes, We can.


Question: Can we test our application with Built-in web server feature?
Yes, We can use this feature to test our module.


Question: Can we go LIVE with Built-in web server ?
Not, Its recommended We should not go LIVE with this Built-In Web Server.


Question: How to check If built-in Web server is available in your PHP Build?
Way 1
print the phpinfo() in php. and Search for Built-in HTTP server , If found means It is available.

Way 2
in php command line, execute following command

php -h

Search -S (Run with built-in Web server), If found means It is available.


Question: How to run PHP Script with built-in Web Server?
Go to file Location and execute following command from command line.

php -S 0.0.0.0:8080 myfile.php

Question: What is use of -S?
It is used to specify the Ip Address with port with which bind.


Question: What is use of -t?

It is used to specify the target folder.


Question: How to detect the request by built-in Web Server?

if(php_sapi_name()=='cli-server'){
    echo "this is request by built-in Web Server";
}

Question: Give full working example of built-in Web Server?

1. Create a file hello.php
2. Login to command line
3. Go to that particular folder in command line
4. Execute following command.

   php -S 0.0.0.0:8080 hello.php
   

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