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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
tools: add generic resampler tool
Add a tool that can convert the sample rate of an input file and write it to an output file. This tool can be used to test the resampler.
This commit is contained in:
Wim Taymans
parent
761119f640
commit
83f2e890ad
2 changed files with 288 additions and 0 deletions
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@ -129,3 +129,17 @@ foreach a : benchmark_apps
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'SPA_PLUGIN_DIR=@0@/spa/plugins/'.format(meson.build_root()),
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])
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endforeach
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if sndfile_dep.found()
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sparesample_sources = [
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'spa-resample.c',
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]
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executable('spa-resample',
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sparesample_sources,
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c_args : [ '-D_GNU_SOURCE' ],
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install: false,
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include_directories : [spa_inc ],
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link_with : [ simd_dependencies, test_lib, audioconvertlib ],
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dependencies : [sndfile_dep, mathlib],
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)
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endif
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274
spa/plugins/audioconvert/spa-resample.c
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274
spa/plugins/audioconvert/spa-resample.c
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@ -0,0 +1,274 @@
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/* Spa
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*
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* Copyright © 2020 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <time.h>
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#include <getopt.h>
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#include <spa/support/log-impl.h>
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#include <spa/debug/mem.h>
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#include <sndfile.h>
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SPA_LOG_IMPL(logger);
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#include "resample.h"
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#include "resample-native.h"
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#define DEFAULT_QUALITY RESAMPLE_DEFAULT_QUALITY
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#define MAX_SAMPLES 1024
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struct data {
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bool verbose;
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int rate;
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int format;
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int quality;
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const char *iname;
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SF_INFO iinfo;
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SNDFILE *ifile;
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const char *oname;
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SF_INFO oinfo;
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SNDFILE *ofile;
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};
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#define STR_FMTS "(s8|s16|s32|f32|f64)"
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#define OPTIONS "hvr:f:q:"
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static const struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{"verbose", no_argument, NULL, 'v'},
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{"rate", required_argument, NULL, 'r' },
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{"format", required_argument, NULL, 'f' },
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{"quality", required_argument, NULL, 'q' },
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{NULL, 0, NULL, 0 }
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};
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static void show_usage(const char *name, bool is_error)
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{
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FILE *fp;
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fp = is_error ? stderr : stdout;
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fprintf(fp, "%s [options] <infile> <outfile>\n", name);
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fprintf(fp,
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" -h, --help Show this help\n"
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" -v --verbose Be verbose\n"
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"\n");
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fprintf(fp,
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" -r --rate Output sample rate (default as input)\n"
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" -f --format Output sample format %s (default as input)\n"
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" -q --quality Resampler quality (default %u)\n"
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"\n",
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STR_FMTS, DEFAULT_QUALITY);
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}
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static inline int
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sf_str_to_fmt(const char *str)
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{
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if (!str)
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return -1;
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if (!strcmp(str, "s8"))
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return SF_FORMAT_PCM_S8;
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if (!strcmp(str, "s16"))
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return SF_FORMAT_PCM_16;
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if (!strcmp(str, "s24"))
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return SF_FORMAT_PCM_24;
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if (!strcmp(str, "s32"))
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return SF_FORMAT_PCM_32;
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if (!strcmp(str, "f32"))
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return SF_FORMAT_FLOAT;
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if (!strcmp(str, "f64"))
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return SF_FORMAT_DOUBLE;
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return -1;
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}
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static int open_files(struct data *d)
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{
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d->ifile = sf_open(d->iname, SFM_READ, &d->iinfo);
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if (d->ifile == NULL) {
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fprintf(stderr, "error: failed to open input file \"%s\": %s\n",
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d->iname, sf_strerror(NULL));
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return -EIO;
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}
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d->oinfo.channels = d->iinfo.channels;
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d->oinfo.samplerate = d->rate > 0 ? d->rate : d->iinfo.samplerate;
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d->oinfo.format = d->format > 0 ? d->format : d->iinfo.format;
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d->oinfo.format |= SF_FORMAT_WAV;
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d->ofile = sf_open(d->oname, SFM_WRITE, &d->oinfo);
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if (d->ofile == NULL) {
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fprintf(stderr, "error: failed to open output file \"%s\": %s\n",
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d->oname, sf_strerror(NULL));
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return -EIO;
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}
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return 0;
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}
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static int close_files(struct data *d)
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{
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if (d->ifile)
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sf_close(d->ifile);
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if (d->ofile)
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sf_close(d->ofile);
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return 0;
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}
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static int do_conversion(struct data *d)
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{
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struct resample r;
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int channels = d->iinfo.channels;
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float in[MAX_SAMPLES * channels];
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float out[MAX_SAMPLES * channels];
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float ibuf[MAX_SAMPLES * channels];
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float obuf[MAX_SAMPLES * channels];
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uint32_t in_len, out_len;
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uint32_t pin_len, pout_len;
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const void *src[channels];
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void *dst[channels];
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uint32_t i;
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int j, k, queued;
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spa_zero(r);
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r.log = &logger.log;
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r.channels = channels;
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r.i_rate = d->iinfo.samplerate;
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r.o_rate = d->oinfo.samplerate;
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r.quality = d->quality > 0 ? d->quality : DEFAULT_QUALITY;
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impl_native_init(&r);
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for (j = 0; j < channels; j++)
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src[j] = &in[MAX_SAMPLES * j];
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for (j = 0; j < channels; j++)
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dst[j] = &out[MAX_SAMPLES * j];
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queued = 0;
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while (true) {
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pout_len = out_len = MAX_SAMPLES;
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in_len = SPA_MIN(MAX_SAMPLES, (int)resample_in_len(&r, out_len)) - queued;
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pin_len = in_len = sf_readf_float(d->ifile, &ibuf[queued * channels], in_len);
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if (pin_len == 0)
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break;
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in_len += queued;
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pin_len = in_len;
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for (k = 0, i = 0; i < pin_len; i++) {
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for (j = 0; j < channels; j++) {
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in[MAX_SAMPLES * j + i] = ibuf[k++];
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}
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}
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resample_process(&r, src, &pin_len, dst, &pout_len);
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queued = in_len - pin_len;
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if (queued)
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memmove(ibuf, &ibuf[pin_len * channels], queued * channels * sizeof(float));
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for (k = 0, i = 0; i < pout_len; i++) {
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for (j = 0; j < channels; j++) {
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obuf[k++] = out[MAX_SAMPLES * j + i];
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}
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}
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pout_len = sf_writef_float(d->ofile, obuf, pout_len);
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}
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return 0;
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}
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int main(int argc, char *argv[])
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{
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char c;
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int longopt_index = 0, ret;
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struct data data;
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spa_zero(data);
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logger.log.level = SPA_LOG_LEVEL_DEBUG;
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while ((c = getopt_long(argc, argv, OPTIONS, long_options, &longopt_index)) != -1) {
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switch (c) {
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case 'h':
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show_usage(argv[0], false);
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return EXIT_SUCCESS;
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case 'v':
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data.verbose = true;
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break;
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case 'r':
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ret = atoi(optarg);
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if (ret <= 0) {
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fprintf(stderr, "error: bad rate %s\n", optarg);
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goto error_usage;
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}
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data.rate = ret;
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break;
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case 'f':
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ret = sf_str_to_fmt(optarg);
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if (ret < 0) {
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fprintf(stderr, "error: bad format %s\n", optarg);
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goto error_usage;
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}
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data.format = ret;
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break;
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case 'q':
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ret = atoi(optarg);
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if (ret <= 0) {
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fprintf(stderr, "error: bad quality %s\n", optarg);
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goto error_usage;
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}
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data.quality = ret;
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break;
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default:
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fprintf(stderr, "error: unknown option '%c'\n", c);
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goto error_usage;
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}
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}
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if (optind + 1 >= argc) {
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fprintf(stderr, "error: filename arguments missing (%d %d)\n", optind, argc);
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goto error_usage;
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}
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data.iname = argv[optind++];
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data.oname = argv[optind++];
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if (open_files(&data) < 0)
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return EXIT_FAILURE;
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do_conversion(&data);
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close_files(&data);
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return 0;
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error_usage:
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show_usage(argv[0], true);
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return EXIT_FAILURE;
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}
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