1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2019 Pali Rohár <pali.rohar@gmail.com>
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
18 ***/
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #include <pulsecore/core.h>
25 #include <pulsecore/core-util.h>
26 #if defined(HAVE_GSTAPTX) || defined(HAVE_GSTLDAC)
27 #include <gst/gst.h>
28 #endif
29
30 #include "a2dp-codec-util.h"
31
32 extern const pa_bt_codec pa_bt_codec_msbc;
33 extern const pa_bt_codec pa_bt_codec_cvsd;
34
35 /* List of HSP/HFP codecs.
36 */
37 static const pa_bt_codec *pa_hf_codecs[] = {
38 &pa_bt_codec_cvsd,
39 &pa_bt_codec_msbc,
40 };
41
42 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_sbc;
43 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_sbc_xq_453;
44 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_sbc_xq_512;
45 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_sbc_xq_552;
46 #ifdef HAVE_GSTAPTX
47 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_aptx;
48 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_aptx_hd;
49 #endif
50 #ifdef HAVE_GSTLDAC
51 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_ldac_eqmid_hq;
52 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_ldac_eqmid_sq;
53 extern const pa_a2dp_endpoint_conf pa_a2dp_endpoint_conf_ldac_eqmid_mq;
54 #endif
55
56 /* This is list of supported codecs. Their order is important.
57 * Codec with lower index has higher priority. */
58 static const pa_a2dp_endpoint_conf *pa_a2dp_endpoint_configurations[] = {
59 #ifdef HAVE_GSTLDAC
60 &pa_a2dp_endpoint_conf_ldac_eqmid_hq,
61 &pa_a2dp_endpoint_conf_ldac_eqmid_sq,
62 &pa_a2dp_endpoint_conf_ldac_eqmid_mq,
63 #endif
64 #ifdef HAVE_GSTAPTX
65 &pa_a2dp_endpoint_conf_aptx_hd,
66 &pa_a2dp_endpoint_conf_aptx,
67 #endif
68 &pa_a2dp_endpoint_conf_sbc,
69 &pa_a2dp_endpoint_conf_sbc_xq_453,
70 &pa_a2dp_endpoint_conf_sbc_xq_512,
71 &pa_a2dp_endpoint_conf_sbc_xq_552,
72 };
73
pa_bluetooth_a2dp_endpoint_conf_count(void)74 unsigned int pa_bluetooth_a2dp_endpoint_conf_count(void) {
75 return PA_ELEMENTSOF(pa_a2dp_endpoint_configurations);
76 }
77
pa_bluetooth_a2dp_endpoint_conf_iter(unsigned int i)78 const pa_a2dp_endpoint_conf *pa_bluetooth_a2dp_endpoint_conf_iter(unsigned int i) {
79 pa_assert(i < pa_bluetooth_a2dp_endpoint_conf_count());
80 return pa_a2dp_endpoint_configurations[i];
81 }
82
pa_bluetooth_hf_codec_count(void)83 unsigned int pa_bluetooth_hf_codec_count(void) {
84 return PA_ELEMENTSOF(pa_hf_codecs);
85 }
86
pa_bluetooth_hf_codec_iter(unsigned int i)87 const pa_bt_codec *pa_bluetooth_hf_codec_iter(unsigned int i) {
88 pa_assert(i < pa_bluetooth_hf_codec_count());
89 return pa_hf_codecs[i];
90 }
91
pa_bluetooth_get_hf_codec(const char *name)92 const pa_bt_codec *pa_bluetooth_get_hf_codec(const char *name) {
93 unsigned int i;
94
95 for (i = 0; i < PA_ELEMENTSOF(pa_hf_codecs); ++i) {
96 if (pa_streq(pa_hf_codecs[i]->name, name))
97 return pa_hf_codecs[i];
98 }
99
100 return NULL;
101 }
102
pa_bluetooth_get_a2dp_endpoint_conf(const char *name)103 const pa_a2dp_endpoint_conf *pa_bluetooth_get_a2dp_endpoint_conf(const char *name) {
104 unsigned int i;
105 unsigned int count = pa_bluetooth_a2dp_endpoint_conf_count();
106
107 for (i = 0; i < count; i++) {
108 if (pa_streq(pa_a2dp_endpoint_configurations[i]->bt_codec.name, name))
109 return pa_a2dp_endpoint_configurations[i];
110 }
111
112 return NULL;
113 }
114
pa_bluetooth_a2dp_codec_gst_init(void)115 void pa_bluetooth_a2dp_codec_gst_init(void) {
116 #if defined(HAVE_GSTAPTX) || defined(HAVE_GSTLDAC)
117 GError *error = NULL;
118
119 if (!gst_init_check(NULL, NULL, &error)) {
120 pa_log_error("Could not initialise GStreamer: %s", error->message);
121 g_error_free(error);
122 return;
123 }
124 pa_log_info("GStreamer initialisation done");
125 #endif
126 }
127
pa_bluetooth_a2dp_codec_is_available(const pa_a2dp_codec_id *id, bool is_a2dp_sink)128 bool pa_bluetooth_a2dp_codec_is_available(const pa_a2dp_codec_id *id, bool is_a2dp_sink) {
129 unsigned int i;
130 unsigned int count = pa_bluetooth_a2dp_endpoint_conf_count();
131 const pa_a2dp_endpoint_conf *conf;
132
133 for (i = 0; i < count; i++) {
134 conf = pa_bluetooth_a2dp_endpoint_conf_iter(i);
135 if (memcmp(id, &conf->id, sizeof(pa_a2dp_codec_id)) == 0
136 && conf->can_be_supported(is_a2dp_sink))
137 return true;
138 }
139
140 return false;
141 }
142