2 This file is part of PulseAudio.
4 Copyright 2011 Intel Corporation
5 Copyright 2011 Collabora Multimedia
6 Copyright 2011 Arun Raghavan <arun.raghavan@collabora.co.uk>
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published
10 by the Free Software Foundation; either version 2.1 of the License,
11 or (at your option) any later version.
13 PulseAudio is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <pulse/internal.h>
29 #include <pulse/xmalloc.h>
30 #include <pulse/i18n.h>
32 #include <pulsecore/core-util.h>
33 #include <pulsecore/macro.h>
37 const char *pa_encoding_to_string(pa_encoding_t e) {
38 static const char* const table[]= {
39 [PA_ENCODING_PCM] = "pcm",
40 [PA_ENCODING_AC3_IEC61937] = "ac3-iec61937",
41 [PA_ENCODING_EAC3_IEC61937] = "eac3-iec61937",
42 [PA_ENCODING_MPEG_IEC61937] = "mpeg-iec61937",
43 [PA_ENCODING_ANY] = "any",
46 if (e < 0 || e >= PA_ENCODING_MAX)
52 pa_format_info* pa_format_info_new(void) {
53 pa_format_info *f = pa_xnew(pa_format_info, 1);
55 f->encoding = PA_ENCODING_INVALID;
56 f->plist = pa_proplist_new();
61 pa_format_info* pa_format_info_copy(const pa_format_info *src) {
66 dest = pa_xnew(pa_format_info, 1);
68 dest->encoding = src->encoding;
71 dest->plist = pa_proplist_copy(src->plist);
78 void pa_format_info_free(pa_format_info *f) {
81 pa_proplist_free(f->plist);
85 void pa_format_info_free2(pa_format_info *f, void *userdata) {
86 pa_format_info_free(f);
89 int pa_format_info_valid(const pa_format_info *f) {
90 return (f->encoding >= 0 && f->encoding < PA_ENCODING_MAX && f->plist != NULL);
93 int pa_format_info_is_pcm(const pa_format_info *f) {
94 return f->encoding == PA_ENCODING_PCM;
97 char *pa_format_info_snprint(char *s, size_t l, const pa_format_info *f) {
106 if (!pa_format_info_valid(f))
107 pa_snprintf(s, l, _("(invalid)"));
109 tmp = pa_proplist_to_string_sep(f->plist, ", ");
110 pa_snprintf(s, l, _("%s, %s"), pa_encoding_to_string(f->encoding), tmp[0] ? tmp : _("(no properties)"));
117 pa_bool_t pa_format_info_is_compatible(pa_format_info *first, pa_format_info *second) {
124 if (first->encoding != second->encoding)
127 while ((key = pa_proplist_iterate(first->plist, &state))) {
128 const char *value_one, *value_two;
130 value_one = pa_proplist_gets(first->plist, key);
131 value_two = pa_proplist_gets(second->plist, key);
133 if (!value_two || !pa_streq(value_one, value_two))
140 pa_format_info* pa_format_info_from_sample_spec(pa_sample_spec *ss, pa_channel_map *map) {
141 char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
144 pa_assert(ss && pa_sample_spec_valid(ss));
145 pa_assert(!map || pa_channel_map_valid(map));
147 f = pa_format_info_new();
148 f->encoding = PA_ENCODING_PCM;
150 pa_proplist_sets(f->plist, PA_PROP_FORMAT_SAMPLE_FORMAT, pa_sample_format_to_string(ss->format));
151 pa_proplist_setf(f->plist, PA_PROP_FORMAT_RATE, "%u", (unsigned int) ss->rate);
152 pa_proplist_setf(f->plist, PA_PROP_FORMAT_CHANNELS, "%u", (unsigned int) ss->channels);
155 pa_channel_map_snprint(cm, sizeof(cm), map);
156 pa_proplist_setf(f->plist, PA_PROP_FORMAT_CHANNEL_MAP, "%s", cm);
162 /* For PCM streams */
163 pa_bool_t pa_format_info_to_sample_spec(pa_format_info *f, pa_sample_spec *ss, pa_channel_map *map) {
164 const char *sf, *r, *ch;
169 pa_return_val_if_fail(f->encoding == PA_ENCODING_PCM, FALSE);
171 pa_return_val_if_fail(sf = pa_proplist_gets(f->plist, PA_PROP_FORMAT_SAMPLE_FORMAT), FALSE);
172 pa_return_val_if_fail(r = pa_proplist_gets(f->plist, PA_PROP_FORMAT_RATE), FALSE);
173 pa_return_val_if_fail(ch = pa_proplist_gets(f->plist, PA_PROP_FORMAT_CHANNELS), FALSE);
175 pa_return_val_if_fail((ss->format = pa_parse_sample_format(sf)) != PA_SAMPLE_INVALID, FALSE);
176 pa_return_val_if_fail(pa_atou(r, &ss->rate) == 0, FALSE);
177 pa_return_val_if_fail(pa_atou(ch, &channels) == 0, FALSE);
178 ss->channels = (uint8_t) channels;
181 const char *m = pa_proplist_gets(f->plist, PA_PROP_FORMAT_CHANNEL_MAP);
182 pa_channel_map_init(map);
185 pa_return_val_if_fail(pa_channel_map_parse(map, m) != NULL, FALSE);
191 /* For compressed streams */
192 pa_bool_t pa_format_info_to_sample_spec_fake(pa_format_info *f, pa_sample_spec *ss) {
197 pa_return_val_if_fail(f->encoding != PA_ENCODING_PCM, FALSE);
199 ss->format = PA_SAMPLE_S16LE;
202 pa_return_val_if_fail(r = pa_proplist_gets(f->plist, PA_PROP_FORMAT_RATE), FALSE);
203 pa_return_val_if_fail(pa_atou(r, &ss->rate) == 0, FALSE);