~ubuntu-branches/ubuntu/trusty/libsoxr/trusty

« back to all changes in this revision

Viewing changes to examples/1a-lsr.c

Committer: Package Import Robot
Author(s): Benjamin Drung
Date: 2013-01-19 13:59:15 UTC
Revision ID: package-import@ubuntu.com-20130119135915-ig85015j5zwtf0rp

Tags: upstream-0.1.0

Import upstream version 0.1.0

files added:

AUTHORS

CMakeLists.txt

COPYING.LGPL

INSTALL

LICENCE

NEWS

README

TODO

cmake

cmake/Modules

cmake/Modules/FindLibAVCodec.cmake

cmake/Modules/FindOpenMP.cmake

cmake/Modules/FindSIMD.cmake

cmake/Modules/TestBigEndian.cmake

deinstall.cmake.in

examples

examples/1-single-block.c

examples/1a-lsr.c

examples/2-stream.C

examples/3-options-input-fn.c

examples/4-split-channels.c

examples/5-variable-rate.c

examples/CMakeLists.txt

examples/README

examples/examples-common.h

go.bat

inst-check

inst-check-soxr

inst-check-soxr-lsr

msvc

msvc/README

msvc/libsoxr.vcproj

msvc/soxr-config.h

soxr-config.h.in

src/CMakeLists.txt

src/aliases.h

src/avfft32.c

src/avfft32s.c

src/ccrw2.h

src/data-io.c

src/data-io.h

src/dbesi0.c

src/fft4g.c

src/fft4g.h

src/fft4g32.c

src/fft4g32s.c

src/fft4g64.c

src/fft4g_cache.h

src/fifo.h

src/filter.c

src/filter.h

src/filters.h

src/half-fir.h

src/half_coefs.h

src/internal.h

src/libsoxr-dev.src.in

src/libsoxr.src.in

src/lsr.c

src/pffft.c

src/pffft.h

src/pffft32.c

src/pffft32s.c

src/poly-fir.h

src/poly-fir0.h

src/rate.h

src/rate32.c

src/rate32s.c

src/rate64.c

src/rdft.h

src/rint-clip.h

src/rint.h

src/samplerate.h

src/simd-dev.h

src/simd.c

src/simd.h

src/soxr-lsr.h

src/soxr-lsr.pc.in

src/soxr.c

src/soxr.h

src/soxr.pc.in

src/vr32.c

tests

tests/CMakeLists.txt

tests/README

tests/cmp-test.cmake

tests/eg-test

tests/io-test

tests/large-ratio

tests/vector-cmp.c

tests/vector-gen.c

Show diffs side-by-side

added added

removed removed

examples/1a-lsr.c

* Licence for this file: LGPL v2.1 See LICENCE for details. */

/* Example 1a: Variant of example 1 using libsamplerate-like bindings. */

#include <soxr-lsr.h>

#include "examples-common.h"

float in[] = { /* Input: 12 cycles of a sine wave with freq. = irate/4 */

0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1,

0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1, 0,1,0,-1};

int main(int argc, char const * arg[])

{

double irate = argc > 1? atof(arg[1]) : 1; /* Default to upsampling */

double orate = argc > 2? atof(arg[2]) : 2; /* by a factor of 2. */

size_t olen = (size_t)(AL(in) * orate / irate + .5); /* Assay output len. */

float * out = (float *)malloc(sizeof(*out) * olen); /* Allocate output buf. */

int error, i = 0;

SRC_DATA data;

data.data_in = in;

data.data_out = out;

data.input_frames = AL(in);

data.output_frames = (int)olen;

data.src_ratio = orate / irate;

error = src_simple(&data, SRC_SINC_FASTEST, 1);

while (i++ < data.output_frames_gen) /* Print out the resampled data, */

printf("%5.2f%c", out[i-1], " \n"[!(i&7) || i == data.output_frames_gen]);

printf("%-26s %s\n", arg[0], src_strerror(error)); /* and reported result. */

free(out); /* Tidy up. */

return !!error;

}

Older »