diff options
Diffstat (limited to 'src/tests/remix-test.c')
| -rw-r--r-- | src/tests/remix-test.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/tests/remix-test.c b/src/tests/remix-test.c new file mode 100644 index 0000000..8e1292d --- /dev/null +++ b/src/tests/remix-test.c @@ -0,0 +1,110 @@ +/*** + 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 <pulse/sample.h> + +#include <pulsecore/resampler.h> +#include <pulsecore/macro.h> +#include <pulsecore/memblock.h> + +struct resample_flags { + const char *str; + pa_resample_flags_t value; +}; + +/* Call like this to get an initializer for struct resample_flags: + * RESAMPLE_FLAGS(PA_RESAMPLER_PRODUCE_LFE) + */ +#define RESAMPLE_FLAGS(flags) { .str = #flags, .value = (flags) } + + +int main(int argc, char *argv[]) { + + static const pa_channel_map maps[] = { + { 1, { PA_CHANNEL_POSITION_MONO } }, + { 2, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT } }, + { 3, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_CENTER } }, + { 3, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_LFE } }, + { 3, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_CENTER } }, + { 4, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_LFE } }, + { 4, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_REAR_CENTER } }, + { 4, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT } }, + { 5, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_CENTER } }, + { 5, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE } }, + { 6, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_CENTER } }, + { 8, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT } }, + { 0, { 0 } } + }; + + static const struct resample_flags flag_sets[] = { + RESAMPLE_FLAGS(0), + RESAMPLE_FLAGS(PA_RESAMPLER_NO_REMAP), + RESAMPLE_FLAGS(PA_RESAMPLER_NO_REMIX), + RESAMPLE_FLAGS(PA_RESAMPLER_PRODUCE_LFE), + RESAMPLE_FLAGS(PA_RESAMPLER_NO_FILL_SINK), + RESAMPLE_FLAGS(PA_RESAMPLER_PRODUCE_LFE | PA_RESAMPLER_NO_FILL_SINK), + RESAMPLE_FLAGS(PA_RESAMPLER_CONSUME_LFE), + RESAMPLE_FLAGS(PA_RESAMPLER_CONSUME_LFE | PA_RESAMPLER_NO_FILL_SINK), + RESAMPLE_FLAGS(PA_RESAMPLER_PRODUCE_LFE | PA_RESAMPLER_CONSUME_LFE), + RESAMPLE_FLAGS(PA_RESAMPLER_PRODUCE_LFE | PA_RESAMPLER_CONSUME_LFE | PA_RESAMPLER_NO_FILL_SINK), + { .str = NULL, .value = 0 }, + }; + + unsigned i, j, k; + pa_mempool *pool; + unsigned crossover_freq = 120; + + pa_log_set_level(PA_LOG_DEBUG); + + pa_assert_se(pool = pa_mempool_new(PA_MEM_TYPE_PRIVATE, 0, true)); + + for (i = 0; maps[i].channels > 0; i++) + for (j = 0; maps[j].channels > 0; j++) { + char a[PA_CHANNEL_MAP_SNPRINT_MAX], b[PA_CHANNEL_MAP_SNPRINT_MAX]; + pa_resampler *r; + pa_sample_spec ss1, ss2; + + ss1.channels = maps[i].channels; + ss2.channels = maps[j].channels; + + ss1.rate = ss2.rate = 44100; + ss1.format = ss2.format = PA_SAMPLE_S16NE; + + for (k = 0; flag_sets[k].str; k++) { + pa_log_info("Converting from '%s' to '%s' with flags %s.", pa_channel_map_snprint(a, sizeof(a), &maps[i]), + pa_channel_map_snprint(b, sizeof(b), &maps[j]), flag_sets[k].str); + + r = pa_resampler_new(pool, &ss1, &maps[i], &ss2, &maps[j], crossover_freq, PA_RESAMPLER_AUTO, + flag_sets[k].value); + + /* We don't really care for the resampler. We just want to + * see the remixing debug output. */ + + pa_resampler_free(r); + } + } + + pa_mempool_unref(pool); + + return 0; +} |