2 * This file is part of DisOrder.
3 * Copyright (C) 2013 Richard Kettlewell
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 /** @file lib/uaudio-pulseaudio.c
19 * @brief Support for PulseAudio backend */
24 #include <pulse/simple.h>
25 #include <pulse/error.h>
30 #include "configuration.h"
32 static const char *const pulseaudio_options
[] = {
37 static pa_simple
*pulseaudio_simple_handle
;
39 /** @brief Open the PulseAudio sound device */
40 static void pulseaudio_open() {
47 ss
.format
= PA_SAMPLE_U8
;
51 ss
.format
= PA_SAMPLE_S16NE
;
55 ss
.format
= PA_SAMPLE_S32NE
;
59 disorder_fatal(0, "unsupported uaudio format (%d, %d)",
60 uaudio_bits
, uaudio_signed
);
61 ss
.channels
= uaudio_channels
;
62 ss
.rate
= uaudio_rate
;
63 pulseaudio_simple_handle
= pa_simple_new(NULL
,
64 uaudio_get("application", "DisOrder"),
72 if(!pulseaudio_simple_handle
)
73 disorder_fatal(0, "pa_simple_new: %s", pa_strerror(error
));
76 /** @brief Close the PulseAudio sound device */
77 static void pulseaudio_close(void) {
78 pa_simple_free(pulseaudio_simple_handle
);
79 pulseaudio_simple_handle
= NULL
;
82 /** @brief Actually play sound via PulseAudio */
83 static size_t pulseaudio_play(void *buffer
, size_t samples
,
84 unsigned attribute((unused
)) flags
) {
86 int ret
= pa_simple_write(pulseaudio_simple_handle
,
88 samples
* uaudio_sample_size
,
91 disorder_fatal(0, "pa_simple_write: %s", pa_strerror(error
));
95 static void pulseaudio_start(uaudio_callback
*callback
,
98 uaudio_thread_start(callback
, userdata
, pulseaudio_play
,
99 32 / uaudio_sample_size
,
100 4096 / uaudio_sample_size
,
104 static void pulseaudio_stop(void) {
105 uaudio_thread_stop();
109 static void pulseaudio_open_mixer(void) {
110 disorder_error(0, "no pulseaudio mixer support yet");
113 static void pulseaudio_close_mixer(void) {
116 static void pulseaudio_get_volume(int *left
, int *right
) {
120 static void pulseaudio_set_volume(int *left
, int *right
) {
124 static void pulseaudio_configure(void) {
127 const struct uaudio uaudio_pulseaudio
= {
128 .name
= "pulseaudio",
129 .options
= pulseaudio_options
,
130 .start
= pulseaudio_start
,
131 .stop
= pulseaudio_stop
,
132 .activate
= uaudio_thread_activate
,
133 .deactivate
= uaudio_thread_deactivate
,
134 .open_mixer
= pulseaudio_open_mixer
,
135 .close_mixer
= pulseaudio_close_mixer
,
136 .get_volume
= pulseaudio_get_volume
,
137 .set_volume
= pulseaudio_set_volume
,
138 .configure
= pulseaudio_configure
,
139 .flags
= UAUDIO_API_CLIENT
,