08-28-2008
Please post a sample of input lines (preferably less than five lines) which allows us to reproduce this problem. With the input you have posted, the code works. We can't know what the special cases are if you don't provide representative input samples.
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oh and it has to be case insensitive.
example
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line2
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line3
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LEARN ABOUT DEBIAN
rtf_create_downsampler
RTF_CREATE_DOWNSAMPLER(3) rtfilter library RTF_CREATE_DOWNSAMPLER(3)
NAME
rtf_create_downsampler - Creates downsampling filter
SYNOPSIS
#include <rtfilter.h>
hfilter rtf_create_downsampler(unsigned int nch, int type,
unsigned int r);
DESCRIPTION
rtf_create_downsampler() creates a filter that downsamples signals coming from nch channels of type type (see rtf_create_filter(3)) by a
decimation factor of r (i.e. the sampling frequency of the input will be r times the sampling frequency of the output). This is achieved
internally by applying a lowpass 4-order Chebychev filter to the input data using a normalized cutoff frequency of 0.8/(2*r) and decimating
the result every r samples.
RETURN VALUE
Returns the handle to the created filter in case of success, NULL otherwise.
NOTES
On the contrary of most other filters, the number of samples returned by rtf_filter(3) is different than the input (as expected) but also
may vary at each call if the number of sample supplied in input is not a multiple of r.
SEE ALSO
rtf_filter(3), rtf_create_filter(3), rtf_destroy_filter(3)
EPFL
2010 RTF_CREATE_DOWNSAMPLER(3)