Nguyễn Ngói nguyengoi

## Install mongo driver for php in ubuntu 12.4 and higher
# install driver
$ sudo apt-get install php-pear php5-dev
# and
$ sudo pecl install mongo

# if you got an error
# configure: error: sasl.h not found!
# you should install (ubuntu)
$ sudo apt-get install libsasl2-dev
# or CentOS

## ffmpeg.md

      
        
          
            
              
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                nguyengoi
                / ffmpeg.md
            
            
              Created
              April 23, 2020 10:36
                — forked from protrolium/ffmpeg.md
            
              
                using ffmpeg to extract audio from video files
              
          
        
      
        
  
      
    ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:

ffmpeg -i input.mp3 output.wma
You can get the list of supported formats with:

ffmpeg -formats
Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:
	# install driver
	$ sudo apt-get install php-pear php5-dev
	# and
	$ sudo pecl install mongo

	# if you got an error
	# configure: error: sasl.h not found!
	# you should install (ubuntu)
	$ sudo apt-get install libsasl2-dev
	# or CentOS