diff options
Diffstat (limited to 'src/tests/mix-test.c')
| -rw-r--r-- | src/tests/mix-test.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/src/tests/mix-test.c b/src/tests/mix-test.c new file mode 100644 index 00000000..7c05b8ed --- /dev/null +++ b/src/tests/mix-test.c @@ -0,0 +1,264 @@ +/*** + 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, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> + +#include <pulse/sample.h> +#include <pulse/volume.h> + +#include <pulsecore/macro.h> +#include <pulsecore/endianmacros.h> +#include <pulsecore/memblock.h> +#include <pulsecore/sample-util.h> + +static void dump_block(const pa_sample_spec *ss, const pa_memchunk *chunk) { + void *d; + unsigned i; + + 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_S24_32NE: + case PA_SAMPLE_S24_32RE: + 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_S24NE: + case PA_SAMPLE_S24RE: { + uint8_t *u = d; + + for (i = 0; i < chunk->length / pa_frame_size(ss); i++) { + printf("0x%02x%02x%02xx ", *u, *(u+1), *(u+2)); + u += 3; + } + + break; + } + + case PA_SAMPLE_FLOAT32NE: + case PA_SAMPLE_FLOAT32RE: { + float *u = d; + + for (i = 0; i < chunk->length / pa_frame_size(ss); i++) { + printf("%1.5f ", ss->format == PA_SAMPLE_FLOAT32NE ? *u : PA_FLOAT32_SWAP(*u)); + u++; + } + + 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: { + static const uint8_t u8_samples[] = { + 0x00, 0xFF, 0x7F, 0x80, 0x9f, + 0x3f, 0x01, 0xF0, 0x20, 0x21 + }; + + memcpy(d, u8_samples, sizeof(u8_samples)); + break; + } + + case PA_SAMPLE_S16NE: + case PA_SAMPLE_S16RE: { + static const uint16_t u16_samples[] = { + 0x0000, 0xFFFF, 0x7FFF, 0x8000, 0x9fff, + 0x3fff, 0x0001, 0xF000, 0x0020, 0x0021 + }; + + memcpy(d, u16_samples, sizeof(u16_samples)); + break; + } + + case PA_SAMPLE_S24_32NE: + case PA_SAMPLE_S24_32RE: + case PA_SAMPLE_S32NE: + case PA_SAMPLE_S32RE: { + static const uint32_t u32_samples[] = { + 0x00000001, 0xFFFF0002, 0x7FFF0003, 0x80000004, 0x9fff0005, + 0x3fff0006, 0x00010007, 0xF0000008, 0x00200009, 0x0021000A + }; + + memcpy(d, u32_samples, sizeof(u32_samples)); + break; + } + + case PA_SAMPLE_S24NE: + case PA_SAMPLE_S24RE: { + /* Need to be on a byte array because they are not aligned */ + static const uint8_t u24_samples[] = { + 0x00, 0x00, 0x01, + 0xFF, 0xFF, 0x02, + 0x7F, 0xFF, 0x03, + 0x80, 0x00, 0x04, + 0x9f, 0xff, 0x05, + 0x3f, 0xff, 0x06, + 0x01, 0x00, 0x07, + 0xF0, 0x00, 0x08, + 0x20, 0x00, 0x09, + 0x21, 0x00, 0x0A + }; + + memcpy(d, u24_samples, sizeof(u24_samples)); + break; + } + + case PA_SAMPLE_FLOAT32NE: + case PA_SAMPLE_FLOAT32RE: { + float *u = d; + static const float float_samples[] = { + 0.0f, -1.0f, 1.0f, 4711.0f, 0.222f, + 0.33f, -.3f, 99.0f, -0.555f, -.123f + }; + + if (ss->format == PA_SAMPLE_FLOAT32RE) { + for (i = 0; i < 10; i++) + u[i] = PA_FLOAT32_SWAP(float_samples[i]); + } else + memcpy(d, float_samples, sizeof(float_samples)); + + break; + } + + default: + pa_assert_not_reached(); + } + + pa_memblock_release(r); + + return r; +} + +int main(int argc, char *argv[]) { + pa_mempool *pool; + pa_sample_spec a; + pa_cvolume v; + + pa_log_set_level(PA_LOG_DEBUG); + + pa_assert_se(pool = pa_mempool_new(FALSE, 0)); + + a.channels = 1; + a.rate = 44100; + + v.channels = a.channels; + v.values[0] = pa_sw_volume_from_linear(0.9); + + for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) { + pa_memchunk i, j, k; + pa_mix_info m[2]; + void *ptr; + + printf("=== mixing: %s\n", pa_sample_format_to_string(a.format)); + + /* Generate block */ + i.memblock = generate_block(pool, &a); + i.length = pa_memblock_get_length(i.memblock); + i.index = 0; + + dump_block(&a, &i); + + /* Make a copy */ + j = i; + pa_memblock_ref(j.memblock); + pa_memchunk_make_writable(&j, 0); + + /* Adjust volume of the copy */ + pa_volume_memchunk(&j, &a, &v); + + dump_block(&a, &j); + + m[0].chunk = i; + m[0].volume.values[0] = PA_VOLUME_NORM; + m[0].volume.channels = a.channels; + m[1].chunk = j; + m[1].volume.values[0] = PA_VOLUME_NORM; + m[1].volume.channels = a.channels; + + k.memblock = pa_memblock_new(pool, i.length); + k.length = i.length; + k.index = 0; + + ptr = (uint8_t*) pa_memblock_acquire(k.memblock) + k.index; + pa_mix(m, 2, ptr, k.length, &a, NULL, FALSE); + pa_memblock_release(k.memblock); + + dump_block(&a, &k); + + pa_memblock_unref(i.memblock); + pa_memblock_unref(j.memblock); + pa_memblock_unref(k.memblock); + } + + pa_mempool_free(pool); + + return 0; +} |