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Re: [Discuss-gnuradio] compressed_file_sink/source?
From: |
Chris Albertson |
Subject: |
Re: [Discuss-gnuradio] compressed_file_sink/source? |
Date: |
Thu, 28 Jun 2007 12:13:26 -0700 (PDT) |
Gzip will be slow. You might look at some lossless audio compressors.
"wavepack" looks like it might work.
See here for a good overview with links
http://wiki.hydrogenaudio.org/index.php?title=Lossless_comparison#WavPack_.28WV.29
One way to implement this would be as a "filtered" source or sink.
Like a file source/sink but the user gets to specify a filter type
program that could do something to the data, such as compress or
decompress. With luck the operating system would schedule the filter
process to run on a different core/CPU and it could go fast
--- Dan Halperin <address@hidden> wrote:
> Has anyone explored inserting a compression algorithm before a
> file_sink
> or a file_source? I made a gzip_file_sink, but it just can't keep
> up
> at low decimation rates. Are there good compression libs that anyone
> would recommend instead?
Chris Albertson
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