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-rw-r--r--src/tests/resampler-test.c479
1 files changed, 479 insertions, 0 deletions
diff --git a/src/tests/resampler-test.c b/src/tests/resampler-test.c
new file mode 100644
index 0000000..40000d5
--- /dev/null
+++ b/src/tests/resampler-test.c
@@ -0,0 +1,479 @@
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <getopt.h>
+#include <locale.h>
+
+#include <pulse/pulseaudio.h>
+
+#include <pulse/rtclock.h>
+#include <pulse/sample.h>
+#include <pulse/volume.h>
+
+#include <pulsecore/i18n.h>
+#include <pulsecore/log.h>
+#include <pulsecore/resampler.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/endianmacros.h>
+#include <pulsecore/memblock.h>
+#include <pulsecore/sample-util.h>
+#include <pulsecore/core-util.h>
+
+static void dump_block(const char *label, const pa_sample_spec *ss, const pa_memchunk *chunk) {
+ void *d;
+ unsigned i;
+
+ if (getenv("MAKE_CHECK"))
+ return;
+ printf("%s: \t", label);
+
+ d = pa_memblock_acquire(chunk->memblock);
+
+ switch (ss->format) {
+
+ case PA_SAMPLE_U8:
+ case PA_SAMPLE_ULAW:
+ case PA_SAMPLE_ALAW: {
+ uint8_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf(" 0x%02x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_S16NE:
+ case PA_SAMPLE_S16RE: {
+ uint16_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf(" 0x%04x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_S32NE:
+ case PA_SAMPLE_S32RE: {
+ uint32_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf("0x%08x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_S24_32NE:
+ case PA_SAMPLE_S24_32RE: {
+ uint32_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf("0x%08x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_FLOAT32NE:
+ case PA_SAMPLE_FLOAT32RE: {
+ float *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++) {
+ printf("%4.3g ", ss->format == PA_SAMPLE_FLOAT32NE ? *u : PA_READ_FLOAT32RE(u));
+ u++;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_S24LE:
+ case PA_SAMPLE_S24BE: {
+ uint8_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++) {
+ printf(" 0x%06x ", PA_READ24NE(u));
+ u += pa_frame_size(ss);
+ }
+
+ break;
+ }
+
+ default:
+ pa_assert_not_reached();
+ }
+
+ printf("\n");
+
+ pa_memblock_release(chunk->memblock);
+}
+
+static pa_memblock* generate_block(pa_mempool *pool, const pa_sample_spec *ss) {
+ pa_memblock *r;
+ void *d;
+ unsigned i;
+
+ pa_assert_se(r = pa_memblock_new(pool, pa_frame_size(ss) * 10));
+ d = pa_memblock_acquire(r);
+
+ switch (ss->format) {
+
+ case PA_SAMPLE_U8:
+ case PA_SAMPLE_ULAW:
+ case PA_SAMPLE_ALAW: {
+ uint8_t *u = d;
+
+ u[0] = 0x00;
+ u[1] = 0xFF;
+ u[2] = 0x7F;
+ u[3] = 0x80;
+ u[4] = 0x9f;
+ u[5] = 0x3f;
+ u[6] = 0x1;
+ u[7] = 0xF0;
+ u[8] = 0x20;
+ u[9] = 0x21;
+ break;
+ }
+
+ case PA_SAMPLE_S16NE:
+ case PA_SAMPLE_S16RE: {
+ uint16_t *u = d;
+
+ u[0] = 0x0000;
+ u[1] = 0xFFFF;
+ u[2] = 0x7FFF;
+ u[3] = 0x8000;
+ u[4] = 0x9fff;
+ u[5] = 0x3fff;
+ u[6] = 0x1;
+ u[7] = 0xF000;
+ u[8] = 0x20;
+ u[9] = 0x21;
+ break;
+ }
+
+ case PA_SAMPLE_S32NE:
+ case PA_SAMPLE_S32RE: {
+ uint32_t *u = d;
+
+ u[0] = 0x00000001;
+ u[1] = 0xFFFF0002;
+ u[2] = 0x7FFF0003;
+ u[3] = 0x80000004;
+ u[4] = 0x9fff0005;
+ u[5] = 0x3fff0006;
+ u[6] = 0x10007;
+ u[7] = 0xF0000008;
+ u[8] = 0x200009;
+ u[9] = 0x21000A;
+ break;
+ }
+
+ case PA_SAMPLE_S24_32NE:
+ case PA_SAMPLE_S24_32RE: {
+ uint32_t *u = d;
+
+ u[0] = 0x000001;
+ u[1] = 0xFF0002;
+ u[2] = 0x7F0003;
+ u[3] = 0x800004;
+ u[4] = 0x9f0005;
+ u[5] = 0x3f0006;
+ u[6] = 0x107;
+ u[7] = 0xF00008;
+ u[8] = 0x2009;
+ u[9] = 0x210A;
+ break;
+ }
+
+ case PA_SAMPLE_FLOAT32NE:
+ case PA_SAMPLE_FLOAT32RE: {
+ float *u = d;
+
+ u[0] = 0.0f;
+ u[1] = -1.0f;
+ u[2] = 1.0f;
+ u[3] = 4711.0f;
+ u[4] = 0.222f;
+ u[5] = 0.33f;
+ u[6] = -.3f;
+ u[7] = 99.0f;
+ u[8] = -0.555f;
+ u[9] = -.123f;
+
+ if (ss->format == PA_SAMPLE_FLOAT32RE)
+ for (i = 0; i < 10; i++)
+ PA_WRITE_FLOAT32RE(&u[i], u[i]);
+
+ break;
+ }
+
+ case PA_SAMPLE_S24NE:
+ case PA_SAMPLE_S24RE: {
+ uint8_t *u = d;
+
+ PA_WRITE24NE(u, 0x000001);
+ PA_WRITE24NE(u+3, 0xFF0002);
+ PA_WRITE24NE(u+6, 0x7F0003);
+ PA_WRITE24NE(u+9, 0x800004);
+ PA_WRITE24NE(u+12, 0x9f0005);
+ PA_WRITE24NE(u+15, 0x3f0006);
+ PA_WRITE24NE(u+18, 0x107);
+ PA_WRITE24NE(u+21, 0xF00008);
+ PA_WRITE24NE(u+24, 0x2009);
+ PA_WRITE24NE(u+27, 0x210A);
+ break;
+ }
+
+ default:
+ pa_assert_not_reached();
+ }
+
+ pa_memblock_release(r);
+
+ return r;
+}
+
+static void help(const char *argv0) {
+ printf("%s [options]\n\n"
+ "-h, --help Show this help\n"
+ "-v, --verbose Print debug messages\n"
+ " --from-rate=SAMPLERATE From sample rate in Hz (defaults to 44100)\n"
+ " --from-format=SAMPLEFORMAT From sample type (defaults to s16le)\n"
+ " --from-channels=CHANNELS From number of channels (defaults to 1)\n"
+ " --to-rate=SAMPLERATE To sample rate in Hz (defaults to 44100)\n"
+ " --to-format=SAMPLEFORMAT To sample type (defaults to s16le)\n"
+ " --to-channels=CHANNELS To number of channels (defaults to 1)\n"
+ " --resample-method=METHOD Resample method (defaults to auto)\n"
+ " --seconds=SECONDS From stream duration (defaults to 60)\n"
+ "\n"
+ "If the formats are not specified, the test performs all formats combinations,\n"
+ "back and forth.\n"
+ "\n"
+ "Sample type must be one of s16le, s16be, u8, float32le, float32be, ulaw, alaw,\n"
+ "s24le, s24be, s24-32le, s24-32be, s32le, s32be (defaults to s16ne)\n"
+ "\n"
+ "See --dump-resample-methods for possible values of resample methods.\n",
+ argv0);
+}
+
+enum {
+ ARG_VERSION = 256,
+ ARG_FROM_SAMPLERATE,
+ ARG_FROM_SAMPLEFORMAT,
+ ARG_FROM_CHANNELS,
+ ARG_TO_SAMPLERATE,
+ ARG_TO_SAMPLEFORMAT,
+ ARG_TO_CHANNELS,
+ ARG_SECONDS,
+ ARG_RESAMPLE_METHOD,
+ ARG_DUMP_RESAMPLE_METHODS
+};
+
+static void dump_resample_methods(void) {
+ int i;
+
+ for (i = 0; i < PA_RESAMPLER_MAX; i++)
+ if (pa_resample_method_supported(i))
+ printf("%s\n", pa_resample_method_to_string(i));
+
+}
+
+int main(int argc, char *argv[]) {
+ pa_mempool *pool = NULL;
+ pa_sample_spec a, b;
+ int ret = 1, c;
+ bool all_formats = true;
+ pa_resample_method_t method;
+ int seconds;
+ unsigned crossover_freq = 120;
+
+ static const struct option long_options[] = {
+ {"help", 0, NULL, 'h'},
+ {"verbose", 0, NULL, 'v'},
+ {"version", 0, NULL, ARG_VERSION},
+ {"from-rate", 1, NULL, ARG_FROM_SAMPLERATE},
+ {"from-format", 1, NULL, ARG_FROM_SAMPLEFORMAT},
+ {"from-channels", 1, NULL, ARG_FROM_CHANNELS},
+ {"to-rate", 1, NULL, ARG_TO_SAMPLERATE},
+ {"to-format", 1, NULL, ARG_TO_SAMPLEFORMAT},
+ {"to-channels", 1, NULL, ARG_TO_CHANNELS},
+ {"seconds", 1, NULL, ARG_SECONDS},
+ {"resample-method", 1, NULL, ARG_RESAMPLE_METHOD},
+ {"dump-resample-methods", 0, NULL, ARG_DUMP_RESAMPLE_METHODS},
+ {NULL, 0, NULL, 0}
+ };
+
+ setlocale(LC_ALL, "");
+#ifdef ENABLE_NLS
+ bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR);
+#endif
+
+ pa_log_set_level(PA_LOG_WARN);
+ if (!getenv("MAKE_CHECK"))
+ pa_log_set_level(PA_LOG_INFO);
+
+ a.channels = b.channels = 1;
+ a.rate = b.rate = 44100;
+ a.format = b.format = PA_SAMPLE_S16LE;
+
+ method = PA_RESAMPLER_AUTO;
+ seconds = 60;
+
+ while ((c = getopt_long(argc, argv, "hv", long_options, NULL)) != -1) {
+
+ switch (c) {
+ case 'h' :
+ help(argv[0]);
+ ret = 0;
+ goto quit;
+
+ case 'v':
+ pa_log_set_level(PA_LOG_DEBUG);
+ break;
+
+ case ARG_VERSION:
+ printf("%s %s\n", argv[0], PACKAGE_VERSION);
+ ret = 0;
+ goto quit;
+
+ case ARG_DUMP_RESAMPLE_METHODS:
+ dump_resample_methods();
+ ret = 0;
+ goto quit;
+
+ case ARG_FROM_CHANNELS:
+ a.channels = (uint8_t) atoi(optarg);
+ break;
+
+ case ARG_FROM_SAMPLEFORMAT:
+ a.format = pa_parse_sample_format(optarg);
+ all_formats = false;
+ break;
+
+ case ARG_FROM_SAMPLERATE:
+ a.rate = (uint32_t) atoi(optarg);
+ break;
+
+ case ARG_TO_CHANNELS:
+ b.channels = (uint8_t) atoi(optarg);
+ break;
+
+ case ARG_TO_SAMPLEFORMAT:
+ b.format = pa_parse_sample_format(optarg);
+ all_formats = false;
+ break;
+
+ case ARG_TO_SAMPLERATE:
+ b.rate = (uint32_t) atoi(optarg);
+ break;
+
+ case ARG_SECONDS:
+ seconds = atoi(optarg);
+ break;
+
+ case ARG_RESAMPLE_METHOD:
+ if (*optarg == '\0' || pa_streq(optarg, "help")) {
+ dump_resample_methods();
+ ret = 0;
+ goto quit;
+ }
+ method = pa_parse_resample_method(optarg);
+ break;
+
+ default:
+ goto quit;
+ }
+ }
+
+ ret = 0;
+ pa_assert_se(pool = pa_mempool_new(PA_MEM_TYPE_PRIVATE, 0, true));
+
+ if (!all_formats) {
+
+ pa_resampler *resampler;
+ pa_memchunk i, j;
+ pa_usec_t ts;
+
+ pa_log_debug("Compilation CFLAGS: %s", PA_CFLAGS);
+ pa_log_debug("=== %d seconds: %d Hz %d ch (%s) -> %d Hz %d ch (%s)", seconds,
+ a.rate, a.channels, pa_sample_format_to_string(a.format),
+ b.rate, b.channels, pa_sample_format_to_string(b.format));
+
+ ts = pa_rtclock_now();
+ pa_assert_se(resampler = pa_resampler_new(pool, &a, NULL, &b, NULL, crossover_freq, method, 0));
+ pa_log_info("init: %llu", (long long unsigned)(pa_rtclock_now() - ts));
+
+ i.memblock = pa_memblock_new(pool, pa_usec_to_bytes(1*PA_USEC_PER_SEC, &a));
+
+ ts = pa_rtclock_now();
+ i.length = pa_memblock_get_length(i.memblock);
+ i.index = 0;
+ while (seconds--) {
+ pa_resampler_run(resampler, &i, &j);
+ if (j.memblock)
+ pa_memblock_unref(j.memblock);
+ }
+ pa_log_info("resampling: %llu", (long long unsigned)(pa_rtclock_now() - ts));
+ pa_memblock_unref(i.memblock);
+
+ pa_resampler_free(resampler);
+
+ goto quit;
+ }
+
+ for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) {
+ for (b.format = 0; b.format < PA_SAMPLE_MAX; b.format ++) {
+ pa_resampler *forth, *back;
+ pa_memchunk i, j, k;
+
+ pa_log_debug("=== %s -> %s -> %s -> /2",
+ pa_sample_format_to_string(a.format),
+ pa_sample_format_to_string(b.format),
+ pa_sample_format_to_string(a.format));
+
+ pa_assert_se(forth = pa_resampler_new(pool, &a, NULL, &b, NULL, crossover_freq, method, 0));
+ pa_assert_se(back = pa_resampler_new(pool, &b, NULL, &a, NULL, crossover_freq, method, 0));
+
+ i.memblock = generate_block(pool, &a);
+ i.length = pa_memblock_get_length(i.memblock);
+ i.index = 0;
+ pa_resampler_run(forth, &i, &j);
+ pa_resampler_run(back, &j, &k);
+
+ dump_block("before", &a, &i);
+ dump_block("after", &b, &j);
+ dump_block("reverse", &a, &k);
+
+ pa_memblock_unref(i.memblock);
+ pa_memblock_unref(j.memblock);
+ pa_memblock_unref(k.memblock);
+
+ pa_resampler_free(forth);
+ pa_resampler_free(back);
+ }
+ }
+
+ quit:
+ if (pool)
+ pa_mempool_unref(pool);
+
+ return ret;
+}
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