2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/timeval.h>
32 #include <pulse/i18n.h>
34 #include <pulsecore/core-util.h>
35 #include <pulsecore/macro.h>
39 size_t pa_sample_size_of_format(pa_sample_format_t f) {
41 static const size_t table[] = {
45 [PA_SAMPLE_S16LE] = 2,
46 [PA_SAMPLE_S16BE] = 2,
47 [PA_SAMPLE_FLOAT32LE] = 4,
48 [PA_SAMPLE_FLOAT32BE] = 4,
49 [PA_SAMPLE_S32LE] = 4,
50 [PA_SAMPLE_S32BE] = 4,
51 [PA_SAMPLE_S24LE] = 3,
52 [PA_SAMPLE_S24BE] = 3,
53 [PA_SAMPLE_S24_32LE] = 4,
54 [PA_SAMPLE_S24_32BE] = 4
58 pa_assert(f < PA_SAMPLE_MAX);
63 size_t pa_sample_size(const pa_sample_spec *spec) {
66 pa_return_val_if_fail(pa_sample_spec_valid(spec), 0);
68 return pa_sample_size_of_format(spec->format);
71 size_t pa_frame_size(const pa_sample_spec *spec) {
73 pa_return_val_if_fail(pa_sample_spec_valid(spec), 0);
75 return pa_sample_size(spec) * spec->channels;
78 size_t pa_bytes_per_second(const pa_sample_spec *spec) {
80 pa_return_val_if_fail(pa_sample_spec_valid(spec), 0);
82 return spec->rate*pa_frame_size(spec);
85 pa_usec_t pa_bytes_to_usec(uint64_t length, const pa_sample_spec *spec) {
87 pa_return_val_if_fail(pa_sample_spec_valid(spec), 0);
89 return (((pa_usec_t) (length / pa_frame_size(spec)) * PA_USEC_PER_SEC) / spec->rate);
92 size_t pa_usec_to_bytes(pa_usec_t t, const pa_sample_spec *spec) {
94 pa_return_val_if_fail(pa_sample_spec_valid(spec), 0);
96 return (size_t) (((t * spec->rate) / PA_USEC_PER_SEC)) * pa_frame_size(spec);
99 pa_sample_spec* pa_sample_spec_init(pa_sample_spec *spec) {
102 spec->format = PA_SAMPLE_INVALID;
109 int pa_sample_spec_valid(const pa_sample_spec *spec) {
112 if (spec->rate <= 0 ||
113 spec->rate > PA_RATE_MAX ||
114 spec->channels <= 0 ||
115 spec->channels > PA_CHANNELS_MAX ||
116 spec->format >= PA_SAMPLE_MAX ||
123 int pa_sample_spec_equal(const pa_sample_spec*a, const pa_sample_spec*b) {
127 pa_return_val_if_fail(pa_sample_spec_valid(a), 0);
128 pa_return_val_if_fail(pa_sample_spec_valid(b), 0);
131 (a->format == b->format) &&
132 (a->rate == b->rate) &&
133 (a->channels == b->channels);
136 const char *pa_sample_format_to_string(pa_sample_format_t f) {
137 static const char* const table[]= {
138 [PA_SAMPLE_U8] = "u8",
139 [PA_SAMPLE_ALAW] = "aLaw",
140 [PA_SAMPLE_ULAW] = "uLaw",
141 [PA_SAMPLE_S16LE] = "s16le",
142 [PA_SAMPLE_S16BE] = "s16be",
143 [PA_SAMPLE_FLOAT32LE] = "float32le",
144 [PA_SAMPLE_FLOAT32BE] = "float32be",
145 [PA_SAMPLE_S32LE] = "s32le",
146 [PA_SAMPLE_S32BE] = "s32be",
147 [PA_SAMPLE_S24LE] = "s24le",
148 [PA_SAMPLE_S24BE] = "s24be",
149 [PA_SAMPLE_S24_32LE] = "s24-32le",
150 [PA_SAMPLE_S24_32BE] = "s24-32be",
153 if (f < 0 || f >= PA_SAMPLE_MAX)
159 char *pa_sample_spec_snprint(char *s, size_t l, const pa_sample_spec *spec) {
166 if (!pa_sample_spec_valid(spec))
167 pa_snprintf(s, l, _("(invalid)"));
169 pa_snprintf(s, l, _("%s %uch %uHz"), pa_sample_format_to_string(spec->format), spec->channels, spec->rate);
174 char* pa_bytes_snprint(char *s, size_t l, unsigned v) {
180 if (v >= ((unsigned) 1024)*1024*1024)
181 pa_snprintf(s, l, _("%0.1f GiB"), ((double) v)/1024/1024/1024);
182 else if (v >= ((unsigned) 1024)*1024)
183 pa_snprintf(s, l, _("%0.1f MiB"), ((double) v)/1024/1024);
184 else if (v >= (unsigned) 1024)
185 pa_snprintf(s, l, _("%0.1f KiB"), ((double) v)/1024);
187 pa_snprintf(s, l, _("%u B"), (unsigned) v);
192 pa_sample_format_t pa_parse_sample_format(const char *format) {
195 if (strcasecmp(format, "s16le") == 0)
196 return PA_SAMPLE_S16LE;
197 else if (strcasecmp(format, "s16be") == 0)
198 return PA_SAMPLE_S16BE;
199 else if (strcasecmp(format, "s16ne") == 0 || strcasecmp(format, "s16") == 0 || strcasecmp(format, "16") == 0)
200 return PA_SAMPLE_S16NE;
201 else if (strcasecmp(format, "s16re") == 0)
202 return PA_SAMPLE_S16RE;
203 else if (strcasecmp(format, "u8") == 0 || strcasecmp(format, "8") == 0)
205 else if (strcasecmp(format, "float32") == 0 || strcasecmp(format, "float32ne") == 0 || strcasecmp(format, "float") == 0)
206 return PA_SAMPLE_FLOAT32NE;
207 else if (strcasecmp(format, "float32re") == 0)
208 return PA_SAMPLE_FLOAT32RE;
209 else if (strcasecmp(format, "float32le") == 0)
210 return PA_SAMPLE_FLOAT32LE;
211 else if (strcasecmp(format, "float32be") == 0)
212 return PA_SAMPLE_FLOAT32BE;
213 else if (strcasecmp(format, "ulaw") == 0 || strcasecmp(format, "mulaw") == 0)
214 return PA_SAMPLE_ULAW;
215 else if (strcasecmp(format, "alaw") == 0)
216 return PA_SAMPLE_ALAW;
217 else if (strcasecmp(format, "s32le") == 0)
218 return PA_SAMPLE_S32LE;
219 else if (strcasecmp(format, "s32be") == 0)
220 return PA_SAMPLE_S32BE;
221 else if (strcasecmp(format, "s32ne") == 0 || strcasecmp(format, "s32") == 0 || strcasecmp(format, "32") == 0)
222 return PA_SAMPLE_S32NE;
223 else if (strcasecmp(format, "s32re") == 0)
224 return PA_SAMPLE_S24RE;
225 else if (strcasecmp(format, "s24le") == 0)
226 return PA_SAMPLE_S24LE;
227 else if (strcasecmp(format, "s24be") == 0)
228 return PA_SAMPLE_S24BE;
229 else if (strcasecmp(format, "s24ne") == 0 || strcasecmp(format, "s24") == 0 || strcasecmp(format, "24") == 0)
230 return PA_SAMPLE_S24NE;
231 else if (strcasecmp(format, "s24re") == 0)
232 return PA_SAMPLE_S24RE;
233 else if (strcasecmp(format, "s24-32le") == 0)
234 return PA_SAMPLE_S24LE;
235 else if (strcasecmp(format, "s24-32be") == 0)
236 return PA_SAMPLE_S24BE;
237 else if (strcasecmp(format, "s24-32ne") == 0 || strcasecmp(format, "s24-32") == 0)
238 return PA_SAMPLE_S24NE;
239 else if (strcasecmp(format, "s24-32re") == 0)
240 return PA_SAMPLE_S24RE;