2 This file is part of PulseAudio.
4 PulseAudio is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published
6 by the Free Software Foundation; either version 2.1 of the License,
7 or (at your option) any later version.
9 PulseAudio is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public License
15 along with PulseAudio; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
26 #include <pulse/sample.h>
27 #include <pulse/volume.h>
29 #include <pulsecore/macro.h>
30 #include <pulsecore/endianmacros.h>
31 #include <pulsecore/memblock.h>
32 #include <pulsecore/sample-util.h>
34 static void dump_block(const pa_sample_spec *ss, const pa_memchunk *chunk) {
38 if (getenv("MAKE_CHECK"))
41 d = pa_memblock_acquire(chunk->memblock);
47 case PA_SAMPLE_ALAW: {
50 for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
51 printf("0x%02x ", *(u++));
57 case PA_SAMPLE_S16RE: {
60 for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
61 printf("0x%04x ", *(u++));
66 case PA_SAMPLE_S24_32NE:
67 case PA_SAMPLE_S24_32RE:
69 case PA_SAMPLE_S32RE: {
72 for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
73 printf("0x%08x ", *(u++));
79 case PA_SAMPLE_S24RE: {
82 for (i = 0; i < chunk->length / pa_frame_size(ss); i++) {
83 printf("0x%02x%02x%02xx ", *u, *(u+1), *(u+2));
90 case PA_SAMPLE_FLOAT32NE:
91 case PA_SAMPLE_FLOAT32RE: {
94 for (i = 0; i < chunk->length / pa_frame_size(ss); i++) {
95 printf("%1.5f ", ss->format == PA_SAMPLE_FLOAT32NE ? *u : PA_FLOAT32_SWAP(*u));
103 pa_assert_not_reached();
108 pa_memblock_release(chunk->memblock);
111 static pa_memblock* generate_block(pa_mempool *pool, const pa_sample_spec *ss) {
116 pa_assert_se(r = pa_memblock_new(pool, pa_frame_size(ss) * 10));
117 d = pa_memblock_acquire(r);
119 switch (ss->format) {
123 case PA_SAMPLE_ALAW: {
124 static const uint8_t u8_samples[] = {
125 0x00, 0xFF, 0x7F, 0x80, 0x9f,
126 0x3f, 0x01, 0xF0, 0x20, 0x21
129 memcpy(d, u8_samples, sizeof(u8_samples));
133 case PA_SAMPLE_S16NE:
134 case PA_SAMPLE_S16RE: {
135 static const uint16_t u16_samples[] = {
136 0x0000, 0xFFFF, 0x7FFF, 0x8000, 0x9fff,
137 0x3fff, 0x0001, 0xF000, 0x0020, 0x0021
140 memcpy(d, u16_samples, sizeof(u16_samples));
144 case PA_SAMPLE_S24_32NE:
145 case PA_SAMPLE_S24_32RE:
146 case PA_SAMPLE_S32NE:
147 case PA_SAMPLE_S32RE: {
148 static const uint32_t u32_samples[] = {
149 0x00000001, 0xFFFF0002, 0x7FFF0003, 0x80000004, 0x9fff0005,
150 0x3fff0006, 0x00010007, 0xF0000008, 0x00200009, 0x0021000A
153 memcpy(d, u32_samples, sizeof(u32_samples));
157 case PA_SAMPLE_S24NE:
158 case PA_SAMPLE_S24RE: {
159 /* Need to be on a byte array because they are not aligned */
160 static const uint8_t u24_samples[] = {
173 memcpy(d, u24_samples, sizeof(u24_samples));
177 case PA_SAMPLE_FLOAT32NE:
178 case PA_SAMPLE_FLOAT32RE: {
180 static const float float_samples[] = {
181 0.0f, -1.0f, 1.0f, 4711.0f, 0.222f,
182 0.33f, -.3f, 99.0f, -0.555f, -.123f
185 if (ss->format == PA_SAMPLE_FLOAT32RE) {
186 for (i = 0; i < 10; i++)
187 u[i] = PA_FLOAT32_SWAP(float_samples[i]);
189 memcpy(d, float_samples, sizeof(float_samples));
195 pa_assert_not_reached();
198 pa_memblock_release(r);
203 int main(int argc, char *argv[]) {
208 if (!getenv("MAKE_CHECK"))
209 pa_log_set_level(PA_LOG_DEBUG);
211 pa_assert_se(pool = pa_mempool_new(FALSE, 0));
216 v.channels = a.channels;
217 v.values[0] = pa_sw_volume_from_linear(0.9);
219 for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) {
224 pa_log_debug("=== mixing: %s\n", pa_sample_format_to_string(a.format));
227 i.memblock = generate_block(pool, &a);
228 i.length = pa_memblock_get_length(i.memblock);
235 pa_memblock_ref(j.memblock);
236 pa_memchunk_make_writable(&j, 0);
238 /* Adjust volume of the copy */
239 pa_volume_memchunk(&j, &a, &v);
244 m[0].volume.values[0] = PA_VOLUME_NORM;
245 m[0].volume.channels = a.channels;
247 m[1].volume.values[0] = PA_VOLUME_NORM;
248 m[1].volume.channels = a.channels;
250 k.memblock = pa_memblock_new(pool, i.length);
254 ptr = (uint8_t*) pa_memblock_acquire(k.memblock) + k.index;
255 pa_mix(m, 2, ptr, k.length, &a, NULL, FALSE);
256 pa_memblock_release(k.memblock);
260 pa_memblock_unref(i.memblock);
261 pa_memblock_unref(j.memblock);
262 pa_memblock_unref(k.memblock);
265 pa_mempool_free(pool);