cvs commit: ports LEGAL ports/audio Makefile ports/audio/lpac Makefile distinfo pkg-descr

Andrew Pantyukhin sat at FreeBSD.org
Fri Jul 21 22:52:07 UTC 2006


sat         2006-07-21 22:52:07 UTC

  FreeBSD ports repository

  Modified files:
    .                    LEGAL 
    audio                Makefile 
  Added files:
    audio/lpac           Makefile distinfo pkg-descr 
  Log:
  Add port audio/lpac:
  
  LPAC is a codec (coder / decoder) for  lossless compression of digital audio
  files. "Lossless" means that any compressed file can be decompressed in a way
  it will be bit-wise identical with the original. This is the main advantage
  of LPAC compared to lossy formats like MP3, WMA or RealAudio. On the other
  hand, lossy codecs can achieve higher compression ratios. For example, MP3 at
  128 kbit/s achieves a (fixed) compression ratio of 11, whereas LPAC's
  compression ratios range from 1.5 to 4, strongly depending on the audio
  material. Typically they are around 2 for pop music and 2.5 for classical
  music. This may not seem much, but remember you will get back every single
  bit, no matter how often you subsequently compress and decompress a file. It
  is true that general archivers (Zip, LZH, gzip) are lossless, too, but they
  often achieve nearly no compression on audio files.
  
  WWW: http://www.nue.tu-berlin.de/wer/liebchen/lpac.html
  
  Revision  Changes    Path
  1.482     +2 -1      ports/LEGAL
  1.753     +1 -0      ports/audio/Makefile
  1.1       +29 -0     ports/audio/lpac/Makefile (new)
  1.1       +3 -0      ports/audio/lpac/distinfo (new)
  1.1       +14 -0     ports/audio/lpac/pkg-descr (new)


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