Paul Lietar
8045e00d4f
libpulse was initialized before the fork. This caused calls to libpulse made after the fork fail. Now initialize lib pulse when we need it, after the fork.
109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*
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* PulseAudio output driver. This file is part of Shairport.
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* Copyright (c) Paul Lietar 2013
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <memory.h>
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#include <pulse/simple.h>
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#include <pulse/error.h>
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#include "common.h"
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#include "audio.h"
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static pa_simple *pa_dev = NULL;
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static int pa_error;
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static const char *pa_server = NULL;
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static const char *pa_sink = NULL;
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static void help(void) {
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printf(" -a server set the server name\n"
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" -s sink set the output sink\n"
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);
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}
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static int init(int argc, char **argv) {
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optind = 0;
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// some platforms apparently require optreset = 1; - which?
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int opt;
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char *mid;
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while ((opt = getopt(argc, argv, "a:s:")) > 0) {
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switch (opt) {
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case 'a':
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pa_server = optarg;
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break;
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case 's':
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pa_sink = optarg;
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break;
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default:
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help();
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die("Invalid audio option -%c specified", opt);
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}
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}
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return 0;
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}
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static void deinit(void) {
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}
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static void start(int sample_rate) {
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const pa_sample_spec ss = {
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.format = PA_SAMPLE_S16LE,
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.rate = sample_rate,
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.channels = 2
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};
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pa_dev = pa_simple_new(pa_server, "shairport", PA_STREAM_PLAYBACK, pa_sink, "shairport", &ss, NULL, NULL, &pa_error);
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if (!pa_dev)
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die("Could not connect to pulseaudio server: %s", pa_strerror(pa_error));
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}
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static void play(short buf[], int samples) {
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if( pa_simple_write(pa_dev, (char *)buf, (size_t)samples * 4, &pa_error) < 0 )
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warn("pa_simple_write() failed: %s\n", pa_strerror(pa_error));
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}
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static void stop(void) {
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if (pa_simple_drain(pa_dev, &pa_error) < 0)
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warn("pa_simple_drain() failed: %s\n", pa_strerror(pa_error));
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if (pa_dev)
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pa_simple_free(pa_dev);
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pa_dev = NULL;
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}
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audio_output audio_pulse = {
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.name = "pulse",
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.help = &help,
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.init = &init,
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.deinit = &deinit,
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.start = &start,
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.stop = &stop,
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.play = &play,
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.volume = NULL
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};
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