Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* Copyright (C) 2007 Jean-Marc Valin |
| 2 | |
| 3 | File: testresample.c |
| 4 | Testing the resampling code |
| 5 | |
| 6 | Redistribution and use in source and binary forms, with or without |
| 7 | modification, are permitted provided that the following conditions are |
| 8 | met: |
| 9 | |
| 10 | 1. Redistributions of source code must retain the above copyright notice, |
| 11 | this list of conditions and the following disclaimer. |
| 12 | |
| 13 | 2. Redistributions in binary form must reproduce the above copyright |
| 14 | notice, this list of conditions and the following disclaimer in the |
| 15 | documentation and/or other materials provided with the distribution. |
| 16 | |
| 17 | 3. The name of the author may not be used to endorse or promote products |
| 18 | derived from this software without specific prior written permission. |
| 19 | |
| 20 | THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 21 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 22 | OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 23 | DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
| 24 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 25 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 26 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 28 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| 29 | ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 30 | POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | #ifdef HAVE_CONFIG_H |
| 34 | #include "config.h" |
| 35 | #endif |
| 36 | |
| 37 | #include <stdio.h> |
| 38 | #include "speex/speex_resampler.h" |
| 39 | #include <math.h> |
| 40 | #include <stdlib.h> |
| 41 | |
| 42 | #define NN 256 |
| 43 | |
| 44 | int main() |
| 45 | { |
| 46 | spx_uint32_t i; |
| 47 | short *in; |
| 48 | short *out; |
| 49 | float *fin, *fout; |
| 50 | int count = 0; |
| 51 | SpeexResamplerState *st = speex_resampler_init(1, 8000, 12000, 10, NULL); |
| 52 | speex_resampler_set_rate(st, 96000, 44100); |
| 53 | speex_resampler_skip_zeros(st); |
| 54 | |
| 55 | in = malloc(NN*sizeof(short)); |
| 56 | out = malloc(2*NN*sizeof(short)); |
| 57 | fin = malloc(NN*sizeof(float)); |
| 58 | fout = malloc(2*NN*sizeof(float)); |
| 59 | while (1) |
| 60 | { |
| 61 | spx_uint32_t in_len; |
| 62 | spx_uint32_t out_len; |
| 63 | fread(in, sizeof(short), NN, stdin); |
| 64 | if (feof(stdin)) |
| 65 | break; |
| 66 | for (i=0;i<NN;i++) |
| 67 | fin[i]=in[i]; |
| 68 | in_len = NN; |
| 69 | out_len = 2*NN; |
| 70 | /*if (count==2) |
| 71 | speex_resampler_set_quality(st, 10);*/ |
| 72 | speex_resampler_process_float(st, 0, fin, &in_len, fout, &out_len); |
| 73 | for (i=0;i<out_len;i++) |
| 74 | out[i]=floor(.5+fout[i]); |
| 75 | /*speex_warning_int("writing", out_len);*/ |
| 76 | fwrite(out, sizeof(short), out_len, stdout); |
| 77 | count++; |
| 78 | } |
| 79 | speex_resampler_destroy(st); |
| 80 | free(in); |
| 81 | free(out); |
| 82 | free(fin); |
| 83 | free(fout); |
| 84 | return 0; |
| 85 | } |
| 86 | |