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/*
* Shairport, an Apple Airplay receiver
* Copyright (c) James Laird 2013
* All rights reserved.
* Modifications and additions (c) Mike Brady 2014--2023
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <libconfig.h>
#include <libgen.h>
#include <memory.h>
#include <net/if.h>
#include <popt.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include "config.h"
#ifdef CONFIG_AIRPLAY_2
#include "ptp-utilities.h"
#include <gcrypt.h>
#include <libavcodec/avcodec.h>
#include <sodium.h>
#include <uuid/uuid.h>
#endif
#ifdef CONFIG_MBEDTLS
#include <mbedtls/md5.h>
#include <mbedtls/version.h>
#endif
#ifdef CONFIG_POLARSSL
#include <polarssl/md5.h>
#endif
#ifdef CONFIG_OPENSSL
#include <openssl/evp.h>
#include <openssl/md5.h>
#endif
#if defined(CONFIG_DBUS_INTERFACE)
#include <glib.h>
#endif
#include "activity_monitor.h"
#include "audio.h"
#include "common.h"
#include "rtp.h"
#include "rtsp.h"
#if defined(CONFIG_DACP_CLIENT)
#include "dacp.h"
#endif
#if defined(CONFIG_METADATA_HUB)
#include "metadata_hub.h"
#endif
#ifdef CONFIG_DBUS_INTERFACE
#include "dbus-service.h"
#endif
#ifdef CONFIG_MQTT
#include "mqtt.h"
#endif
#ifdef CONFIG_MPRIS_INTERFACE
#include "mpris-service.h"
#endif
#ifdef CONFIG_LIBDAEMON
#include <libdaemon/dexec.h>
#include <libdaemon/dfork.h>
#include <libdaemon/dlog.h>
#include <libdaemon/dpid.h>
#include <libdaemon/dsignal.h>
#else
#include <syslog.h>
#endif
#ifdef CONFIG_SOXR
#include <math.h>
#include <soxr.h>
#endif
#ifdef CONFIG_CONVOLUTION
#include <FFTConvolver/convolver.h>
#endif
pid_t pid;
#ifdef CONFIG_LIBDAEMON
int this_is_the_daemon_process = 0;
#endif
#ifndef UUID_STR_LEN
#define UUID_STR_LEN 36
#endif
#define strnull(s) ((s) ? (s) : "(null)")
pthread_t rtsp_listener_thread;
int killOption = 0;
int daemonisewith = 0;
int daemonisewithout = 0;
int log_to_syslog_selected = 0;
#ifdef CONFIG_LIBDAEMON
int log_to_default = 1; // needed if libdaemon used
#endif
int display_config_selected = 0;
int log_to_syslog_select_is_first_command_line_argument = 0;
char configuration_file_path[4096 + 1];
char *config_file_real_path = NULL;
char first_backend_name[256];
void print_version(void) {
char *version_string = get_version_string();
if (version_string) {
printf("%s\n", version_string);
free(version_string);
} else {
debug(1, "Can't print version string!");
}
}
#ifdef CONFIG_AIRPLAY_2
int has_fltp_capable_aac_decoder(void) {
// return 1 if the AAC decoder advertises fltp decoding capability, which
// is needed for decoding Buffered Audio streams
int has_capability = 0;
const AVCodec *codec = avcodec_find_decoder(AV_CODEC_ID_AAC);
if (codec != NULL) {
const enum AVSampleFormat *p = codec->sample_fmts;
if (p != NULL) {
while ((has_capability == 0) && (*p != AV_SAMPLE_FMT_NONE)) {
if (*p == AV_SAMPLE_FMT_FLTP)
has_capability = 1;
p++;
}
}
}
return has_capability;
}
#endif
#ifdef CONFIG_SOXR
pthread_t soxr_time_check_thread;
int soxr_time_check_thread_started = 0;
void *soxr_time_check(__attribute__((unused)) void *arg) {
const int buffer_length = 352;
int32_t inbuffer[buffer_length * 2];
int32_t outbuffer[(buffer_length + 1) * 2];
// int32_t *outbuffer = (int32_t*)malloc((buffer_length+1)*2*sizeof(int32_t));
// int32_t *inbuffer = (int32_t*)malloc((buffer_length)*2*sizeof(int32_t));
// generate a sample signal
const double frequency = 440; //
int i;
int number_of_iterations = 0;
uint64_t soxr_start_time = get_absolute_time_in_ns();
uint64_t loop_until_time =
(uint64_t)1500000000 + soxr_start_time; // loop for a second and a half, max -- no need to be
// able to cancel it, do _don't even try_!
while (get_absolute_time_in_ns() < loop_until_time) {
number_of_iterations++;
for (i = 0; i < buffer_length; i++) {
double w = sin(i * (frequency + number_of_iterations * 2) * 2 * M_PI / 44100);
int32_t wint = (int32_t)(w * INT32_MAX);
inbuffer[i * 2] = wint;
inbuffer[i * 2 + 1] = wint;
}
soxr_io_spec_t io_spec;
io_spec.itype = SOXR_INT32_I;
io_spec.otype = SOXR_INT32_I;
io_spec.scale = 1.0; // this seems to crash if not = 1.0
io_spec.e = NULL;
io_spec.flags = 0;
size_t odone;
soxr_oneshot(buffer_length, buffer_length + 1, 2, // Rates and # of chans.
inbuffer, buffer_length, NULL, // Input.
outbuffer, buffer_length + 1, &odone, // Output.
&io_spec, // Input, output and transfer spec.
NULL, NULL); // Default configuration.
io_spec.itype = SOXR_INT32_I;
io_spec.otype = SOXR_INT32_I;
io_spec.scale = 1.0; // this seems to crash if not = 1.0
io_spec.e = NULL;
io_spec.flags = 0;
soxr_oneshot(buffer_length, buffer_length - 1, 2, // Rates and # of chans.
inbuffer, buffer_length, NULL, // Input.
outbuffer, buffer_length - 1, &odone, // Output.
&io_spec, // Input, output and transfer spec.
NULL, NULL); // Default configuration.
}
int64_t soxr_execution_time =
get_absolute_time_in_ns() - soxr_start_time; // this must be zero or positive
int soxr_execution_time_int = soxr_execution_time; // must be in or around 1500000000
// free(outbuffer);
// free(inbuffer);
if (number_of_iterations != 0) {
config.soxr_delay_index = soxr_execution_time_int / number_of_iterations;
} else {
debug(1, "No soxr-timing iterations performed, so \"basic\" iteration will be used.");
config.soxr_delay_index = 0; // used as a flag
}
debug(2, "soxr_delay: %d nanoseconds, soxr_delay_threshold: %d milliseconds.",
config.soxr_delay_index, config.soxr_delay_threshold / 1000000);
if ((config.packet_stuffing == ST_soxr) &&
(config.soxr_delay_index > config.soxr_delay_threshold))
inform("Note: this device may be too slow for \"soxr\" interpolation. Consider choosing the "
"\"basic\" or \"auto\" interpolation setting.");
if (config.packet_stuffing == ST_auto)
debug(
1, "\"%s\" interpolation has been chosen.",
((config.soxr_delay_index != 0) && (config.soxr_delay_index <= config.soxr_delay_threshold))
? "soxr"
: "basic");
pthread_exit(NULL);
}
#endif
void usage(char *progname) {
#ifdef CONFIG_AIRPLAY_2
if (has_fltp_capable_aac_decoder() == 0) {
printf("\nIMPORTANT NOTE: Shairport Sync can not run on this system.\n");
printf("A Floating Planar (\"fltp\") AAC decoder is required, ");
printf("but the system's ffmpeg library does not seem to include one.\n");
printf("See: "
"https://github.com/mikebrady/shairport-sync/blob/development/"
"TROUBLESHOOTING.md#aac-decoder-issues-airplay-2-only\n\n");
} else {
#endif
// clang-format off
printf("Please use the configuration file for settings where possible.\n");
printf("Many more settings are available in the configuration file.\n");
printf("\n");
printf("Usage: %s [options...]\n", progname);
printf(" or: %s [options...] -- [audio output-specific options]\n", progname);
printf("\n");
printf("Options:\n");
printf(" -h, --help Show this help.\n");
printf(" -V, --version Show version information -- the version string.\n");
printf(" -X, --displayConfig Output OS information, version string, command line, configuration file and active settings to the log.\n");
printf(" --statistics Print some interesting statistics. More will be printed if -v / -vv / -vvv are also chosen.\n");
printf(" -v, --verbose Print debug information; -v some; -vv more; -vvv lots -- generally too much.\n");
printf(" -c, --configfile=FILE Read configuration settings from FILE. Default is %s.\n", configuration_file_path);
printf(" -a, --name=NAME Set service name. Default is the hostname with first letter capitalised.\n");
printf(" --password=PASSWORD Require PASSWORD to connect. Default is no password. (Classic AirPlay only.)\n");
printf(" -p, --port=PORT Set RTSP listening port. Default 5000; 7000 for AirPlay 2./\n");
printf(" -L, --latency=FRAMES [Deprecated] Set the latency for audio sent from an unknown device.\n");
printf(" The default is to set it automatically.\n");
printf(" -S, --stuffing=MODE Set how to adjust current latency to match desired latency, where:\n");
printf(" \"basic\" inserts or deletes audio frames from packet frames with low processor overhead, and\n");
printf(" \"soxr\" uses libsoxr to minimally resample packet frames -- moderate processor overhead.\n");
printf(" The default \"auto\" setting chooses basic or soxr depending on processor capability.\n");
printf(" The \"soxr\" option is only available if built with soxr support.\n");
printf(" -B, --on-start=PROGRAM Run PROGRAM when playback is about to begin.\n");
printf(" -E, --on-stop=PROGRAM Run PROGRAM when playback has ended.\n");
printf(" For -B and -E options, specify the full path to the program and arguments, e.g. \"/usr/bin/logger\".\n");
printf(" Executable scripts work, but the file must be marked executable have the appropriate shebang (#!/bin/sh) on the first line.\n");
printf(" -w, --wait-cmd Wait until the -B or -E programs finish before continuing.\n");
printf(" -o, --output=BACKEND Select audio backend. They are listed at the end of this text. The first one is the default.\n");
printf(" -m, --mdns=BACKEND Use the mDNS backend named BACKEND to advertise the AirPlay service through Bonjour/ZeroConf.\n");
printf(" They are listed at the end of this text.\n");
printf(" If no mdns backend is specified, they are tried in order until one works.\n");
printf(" -r, --resync=THRESHOLD [Deprecated] resync if error exceeds this number of frames. Set to 0 to stop resyncing.\n");
printf(" -t, --timeout=SECONDS Go back to idle mode from play mode after a break in communications of this many seconds (default 120). Set to 0 never to exit play mode.\n");
printf(" --tolerance=TOLERANCE [Deprecated] Allow a synchronization error of TOLERANCE frames (default 88) before trying to correct it.\n");
printf(" --logOutputLevel Log the output level setting -- a debugging option, useful for determining the optimum maximum volume.\n");
#ifdef CONFIG_LIBDAEMON
printf(" -d, --daemon Daemonise.\n");
printf(" -j, --justDaemoniseNoPIDFile Daemonise without a PID file.\n");
printf(" -k, --kill Kill the existing shairport daemon.\n");
#endif
#ifdef CONFIG_METADATA
printf(" -M, --metadata-enable Ask for metadata from the source and process it. Much more flexibility with configuration file settings.\n");
printf(" --metadata-pipename=PIPE send metadata to PIPE, e.g. --metadata-pipename=/tmp/%s-metadata.\n", config.appName);
printf(" The default is /tmp/%s-metadata.\n", config.appName);
printf(" -g, --get-coverart Include cover art in the metadata to be gathered and sent.\n");
#endif
printf(" --log-to-syslog Send debug and statistics information through syslog\n");
printf(" If used, this should be the first command line argument.\n");
printf(" -u, --use-stderr [Deprecated] This setting is not needed -- stderr is now used by default and syslog is selected using --log-to-syslog.\n");
printf("\n");
mdns_ls_backends();
printf("\n");
audio_ls_outputs();
// clang-format on
#ifdef CONFIG_AIRPLAY_2
}
#endif
}
int parse_options(int argc, char **argv) {
// there are potential memory leaks here -- it's called a second time, previously allocated
// strings will dangle.
char *raw_service_name = NULL; /* Used to pick up the service name before possibly expanding it */
char *stuffing = NULL; /* used for picking up the stuffing option */
signed char c; /* used for argument parsing */
// int i = 0; /* used for tracking options */
int resync_threshold_in_frames = 0;
int tolerance_in_frames = 0;
poptContext optCon; /* context for parsing command-line options */
struct poptOption optionsTable[] = {
{"verbose", 'v', POPT_ARG_NONE, NULL, 'v', NULL, NULL},
{"kill", 'k', POPT_ARG_NONE, &killOption, 0, NULL, NULL},
{"daemon", 'd', POPT_ARG_NONE, &daemonisewith, 0, NULL, NULL},
{"justDaemoniseNoPIDFile", 'j', POPT_ARG_NONE, &daemonisewithout, 0, NULL, NULL},
{"configfile", 'c', POPT_ARG_STRING, &config.configfile, 0, NULL, NULL},
{"statistics", 0, POPT_ARG_NONE, &config.statistics_requested, 0, NULL, NULL},
{"logOutputLevel", 0, POPT_ARG_NONE, &config.logOutputLevel, 0, NULL, NULL},
{"version", 'V', POPT_ARG_NONE, NULL, 0, NULL, NULL},
{"displayConfig", 'X', POPT_ARG_NONE, &display_config_selected, 0, NULL, NULL},
{"port", 'p', POPT_ARG_INT, &config.port, 0, NULL, NULL},
{"name", 'a', POPT_ARG_STRING, &raw_service_name, 0, NULL, NULL},
{"output", 'o', POPT_ARG_STRING, &config.output_name, 0, NULL, NULL},
{"on-start", 'B', POPT_ARG_STRING, &config.cmd_start, 0, NULL, NULL},
{"on-stop", 'E', POPT_ARG_STRING, &config.cmd_stop, 0, NULL, NULL},
{"wait-cmd", 'w', POPT_ARG_NONE, &config.cmd_blocking, 0, NULL, NULL},
{"mdns", 'm', POPT_ARG_STRING, &config.mdns_name, 0, NULL, NULL},
{"latency", 'L', POPT_ARG_INT, &config.userSuppliedLatency, 0, NULL, NULL},
{"stuffing", 'S', POPT_ARG_STRING, &stuffing, 'S', NULL, NULL},
{"resync", 'r', POPT_ARG_INT, &resync_threshold_in_frames, 'r', NULL, NULL},
{"timeout", 't', POPT_ARG_INT, &config.timeout, 't', NULL, NULL},
{"password", 0, POPT_ARG_STRING, &config.password, 0, NULL, NULL},
{"tolerance", 'z', POPT_ARG_INT, &tolerance_in_frames, 'z', NULL, NULL},
{"use-stderr", 'u', POPT_ARG_NONE, NULL, 'u', NULL, NULL},
{"log-to-syslog", 0, POPT_ARG_NONE, &log_to_syslog_selected, 0, NULL, NULL},
#ifdef CONFIG_METADATA
{"metadata-enable", 'M', POPT_ARG_NONE, &config.metadata_enabled, 'M', NULL, NULL},
{"metadata-pipename", 0, POPT_ARG_STRING, &config.metadata_pipename, 0, NULL, NULL},
{"get-coverart", 'g', POPT_ARG_NONE, &config.get_coverart, 'g', NULL, NULL},
#endif
POPT_AUTOHELP{NULL, 0, 0, NULL, 0, NULL, NULL}};
// we have to parse the command line arguments to look for a config file
int optind;
optind = argc;
int j;
for (j = 0; j < argc; j++)
if (strcmp(argv[j], "--") == 0)
optind = j;
optCon = poptGetContext(NULL, optind, (const char **)argv, optionsTable, 0);
if (optCon == NULL)
die("Can not get a secondary popt context.");
poptSetOtherOptionHelp(optCon, "[OPTIONS]* ");
/* Now do options processing just to get a debug log destination and level */
debuglev = 0;
while ((c = poptGetNextOpt(optCon)) >= 0) {
switch (c) {
case 'v':
debuglev++;
break;
case 'u':
inform("Warning: the option -u is no longer needed and is deprecated. Debug and statistics "
"output to STDERR is now the default. Use \"--log-to-syslog\" to revert.");
break;
case 'D':
inform("Warning: the option -D or --disconnectFromOutput is deprecated.");
break;
case 'R':
inform("Warning: the option -R or --reconnectToOutput is deprecated.");
break;
case 'A':
inform("Warning: the option -A or --AirPlayLatency is deprecated and ignored. This setting "
"is now "
"automatically received from the AirPlay device.");
break;
case 'i':
inform("Warning: the option -i or --iTunesLatency is deprecated and ignored. This setting is "
"now "
"automatically received from iTunes");
break;
case 'f':
inform(
"Warning: the option --forkedDaapdLatency is deprecated and ignored. This setting is now "
"automatically received from forkedDaapd");
break;
case 'r':
config.resync_threshold = (resync_threshold_in_frames * 1.0) / 44100;
inform("Warning: the option -r or --resync is deprecated. Please use the "
"\"resync_threshold_in_seconds\" setting in the config file instead.");
break;
case 'z':
config.tolerance = (tolerance_in_frames * 1.0) / 44100;
inform("Warning: the option --tolerance is deprecated. Please use the "
"\"drift_tolerance_in_seconds\" setting in the config file instead.");
break;
}
}
if (c < -1) {
die("%s: %s", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(c));
}
poptFreeContext(optCon);
if (log_to_syslog_selected) {
// if this was the first command line argument, it'll already have been chosen
if (log_to_syslog_select_is_first_command_line_argument == 0) {
inform("Suggestion: make \"--log-to-syslog\" the first command line argument to ensure "
"messages go to the syslog right from the beginning.");
}
#ifdef CONFIG_LIBDAEMON
log_to_default = 0; // a specific log output modality has been selected.
#endif
log_to_syslog();
}
#ifdef CONFIG_LIBDAEMON
if ((daemonisewith) && (daemonisewithout))
die("Select either daemonize_with_pid_file or daemonize_without_pid_file -- you have selected "
"both!");
if ((daemonisewith) || (daemonisewithout)) {
config.daemonise = 1;
if (daemonisewith)
config.daemonise_store_pid = 1;
};
#endif
config.audio_backend_silent_lead_in_time_auto =
1; // start outputting silence as soon as packets start arriving
config.default_airplay_volume = -24.0;
config.high_threshold_airplay_volume =
-16.0; // if the volume exceeds this, reset to the default volume if idle for the
// limit_to_high_volume_threshold_time_in_minutes time
config.limit_to_high_volume_threshold_time_in_minutes =
0; // after this time in minutes, if the volume is higher, use the default_airplay_volume
// volume for new play sessions.
config.fixedLatencyOffset = 11025; // this sounds like it works properly.
config.diagnostic_drop_packet_fraction = 0.0;
config.active_state_timeout = 10.0;
config.soxr_delay_threshold = 30 * 1000000; // the soxr measurement time (nanoseconds) of two
// oneshots must not exceed this if soxr interpolation
// is to be chosen automatically.
config.volume_range_hw_priority =
0; // if combining software and hardware volume control, give the software priority
// i.e. when reducing volume, reduce the sw first before reducing the software.
// this is because some hw mixers mute at the bottom of their range, and they don't always
// advertise this fact
config.resend_control_first_check_time =
0.10; // wait this many seconds before requesting the resending of a missing packet
config.resend_control_check_interval_time =
0.25; // wait this many seconds before again requesting the resending of a missing packet
config.resend_control_last_check_time =
0.10; // give up if the packet is still missing this close to when it's needed
config.missing_port_dacp_scan_interval_seconds =
2.0; // check at this interval if no DACP port number is known
config.minimum_free_buffer_headroom = 125; // leave approximately one second's worth of buffers
// free after calculating the effective latency.
// e.g. if we have 1024 buffers or 352 frames = 8.17 seconds and we have a nominal latency of 2.0
// seconds then we can add an offset of 5.17 seconds and still leave a second's worth of buffers
// for unexpected circumstances
#ifdef CONFIG_METADATA
/* Get the metadata setting. */
config.metadata_enabled = 1; // if metadata support is included, then enable it by default
config.get_coverart = 1; // if metadata support is included, then enable it by default
#endif
#ifdef CONFIG_CONVOLUTION
config.convolution_max_length = 8192;
#endif
config.loudness_reference_volume_db = -20;
#ifdef CONFIG_METADATA_HUB
config.cover_art_cache_dir = "/tmp/shairport-sync/.cache/coverart";
config.scan_interval_when_active =
1; // number of seconds between DACP server scans when playing something
config.scan_interval_when_inactive =
1; // number of seconds between DACP server scans when playing nothing
config.scan_max_bad_response_count =
5; // number of successive bad results to ignore before giving up
// config.scan_max_inactive_count =
// (365 * 24 * 60 * 60) / config.scan_interval_when_inactive; // number of scans to do before
// stopping if
// not made active again (not used)
#endif
#ifdef CONFIG_AIRPLAY_2
// the features code is a 64-bit number, but in the mDNS advertisement, the least significant 32
// bit are given first for example, if the features number is 0x1C340405F4A00, it will be given as
// features=0x405F4A00,0x1C340 in the mDNS string, and in a signed decimal number in the plist:
// 496155702020608 this setting here is the source of both the plist features response and the
// mDNS string.
// note: 0x300401F4A00 works but with weird delays and stuff
// config.airplay_features = 0x1C340405FCA00;
uint64_t mask =
((uint64_t)1 << 17) | ((uint64_t)1 << 16) | ((uint64_t)1 << 15) | ((uint64_t)1 << 50);
config.airplay_features =
0x1C340405D4A00 & (~mask); // APX + Authentication4 (b14) with no metadata (see below)
// Advertised with mDNS and returned with GET /info, see
// https://openairplay.github.io/airplay-spec/status_flags.html 0x4: Audio cable attached, no PIN
// required (transient pairing), 0x204: Audio cable attached, OneTimePairingRequired 0x604: Audio
// cable attached, OneTimePairingRequired, device was setup for Homekit access control
config.airplay_statusflags = 0x04;
// Set to NULL to work with transient pairing
config.airplay_pin = NULL;
// use the MAC address placed in config.hw_addr to generate the default airplay_device_id
uint64_t temporary_airplay_id = nctoh64(config.hw_addr);
temporary_airplay_id =
temporary_airplay_id >> 16; // we only use the first 6 bytes but have imported 8.
// now generate a UUID
// from https://stackoverflow.com/questions/51053568/generating-a-random-uuid-in-c
// with thanks
uuid_t binuuid;
uuid_generate_random(binuuid);
char *uuid = malloc(UUID_STR_LEN + 1); // leave space for the NUL at the end
// Produces a UUID string at uuid consisting of lower-case letters
uuid_unparse_lower(binuuid, uuid);
config.airplay_pi = uuid;
#endif
// config_setting_t *setting;
const char *str = 0;
int value = 0;
double dvalue = 0.0;
// debug(1, "Looking for the configuration file \"%s\".", config.configfile);
config_init(&config_file_stuff);
config_file_real_path = realpath(config.configfile, NULL);
if (config_file_real_path == NULL) {
debug(2, "can't resolve the configuration file \"%s\".", config.configfile);
} else {
debug(2, "looking for configuration file at full path \"%s\"", config_file_real_path);
/* Read the file. If there is an error, report it and exit. */
if (config_read_file(&config_file_stuff, config_file_real_path)) {
config_set_auto_convert(&config_file_stuff,
1); // allow autoconversion from int/float to int/float
// make config.cfg point to it
config.cfg = &config_file_stuff;
/* Get the Service Name. */
if (config_lookup_string(config.cfg, "general.name", &str)) {
raw_service_name = (char *)str;
}
#ifdef CONFIG_LIBDAEMON
/* Get the Daemonize setting. */
config_set_lookup_bool(config.cfg, "sessioncontrol.daemonize_with_pid_file", &daemonisewith);
/* Get the Just_Daemonize setting. */
config_set_lookup_bool(config.cfg, "sessioncontrol.daemonize_without_pid_file",
&daemonisewithout);
/* Get the directory path for the pid file created when the program is daemonised. */
if (config_lookup_string(config.cfg, "sessioncontrol.daemon_pid_dir", &str))
config.piddir = (char *)str;
#endif
/* Get the mdns_backend setting. */
if (config_lookup_string(config.cfg, "general.mdns_backend", &str))
config.mdns_name = (char *)str;
/* Get the output_backend setting. */
if (config_lookup_string(config.cfg, "general.output_backend", &str))
config.output_name = (char *)str;
/* Get the port setting. */
if (config_lookup_int(config.cfg, "general.port", &value)) {
if ((value < 0) || (value > 65535))
#ifdef CONFIG_AIRPLAY_2
die("Invalid port number \"%sd\". It should be between 0 and 65535, default is 7000",
value);
#else
die("Invalid port number \"%sd\". It should be between 0 and 65535, default is 5000",
value);
#endif
else
config.port = value;
}
/* Get the udp port base setting. */
if (config_lookup_int(config.cfg, "general.udp_port_base", &value)) {
if ((value < 0) || (value > 65535))
die("Invalid port number \"%sd\". It should be between 0 and 65535, default is 6001",
value);
else
config.udp_port_base = value;
}
/* Get the udp port range setting. This is number of ports that will be tried for free ports ,
* starting at the port base. Only three ports are needed. */
if (config_lookup_int(config.cfg, "general.udp_port_range", &value)) {
if ((value < 3) || (value > 65535))
die("Invalid port range \"%sd\". It should be between 3 and 65535, default is 10",
value);
else
config.udp_port_range = value;
}
/* Get the password setting. */
if (config_lookup_string(config.cfg, "general.password", &str))
config.password = (char *)str;
if (config_lookup_string(config.cfg, "general.interpolation", &str)) {
if (strcasecmp(str, "basic") == 0)
config.packet_stuffing = ST_basic;
else if (strcasecmp(str, "auto") == 0)
config.packet_stuffing = ST_auto;
else if (strcasecmp(str, "soxr") == 0)
#ifdef CONFIG_SOXR
config.packet_stuffing = ST_soxr;
#else
warn("The soxr option not available because this version of shairport-sync was built "
"without libsoxr "
"support. Change the \"general/interpolation\" setting in the configuration file.");
#endif
else
die("Invalid interpolation option choice \"%s\". It should be \"auto\", \"basic\" or "
"\"soxr\"",
str);
}
#ifdef CONFIG_SOXR
/* Get the soxr_delay_threshold setting. */
/* Convert between the input, given in milliseconds, and the stored values in nanoseconds. */
if (config_lookup_int(config.cfg, "general.soxr_delay_threshold", &value)) {
if ((value >= 1) && (value <= 100))
config.soxr_delay_threshold = value * 1000000;
else
warn("Invalid general soxr_delay_threshold setting option choice \"%d\". It should be "
"between 1 and 100, "
"inclusive. Default is %d (milliseconds).",
value, config.soxr_delay_threshold / 1000000);
}
#endif
/* Get the statistics setting. */
if (config_set_lookup_bool(config.cfg, "general.statistics",
&(config.statistics_requested))) {
warn("The \"general\" \"statistics\" setting is deprecated. Please use the \"diagnostics\" "
"\"statistics\" setting instead.");
}
/* The old drift tolerance setting. */
if (config_lookup_int(config.cfg, "general.drift", &value)) {
inform("The drift setting is deprecated. Use "
"drift_tolerance_in_seconds instead");
config.tolerance = 1.0 * value / 44100;
}
/* The old resync setting. */
if (config_lookup_int(config.cfg, "general.resync_threshold", &value)) {
inform("The resync_threshold setting is deprecated. Use "
"resync_threshold_in_seconds instead");
config.resync_threshold = 1.0 * value / 44100;
}
/* Get the drift tolerance setting. */
if (config_lookup_float(config.cfg, "general.drift_tolerance_in_seconds", &dvalue))
config.tolerance = dvalue;
/* Get the resync setting. */
if (config_lookup_float(config.cfg, "general.resync_threshold_in_seconds", &dvalue))
config.resync_threshold = dvalue;
/* Get the resync recovery time setting. */
if (config_lookup_float(config.cfg, "general.resync_recovery_time_in_seconds", &dvalue))
config.resync_recovery_time = dvalue;
/* Get the verbosity setting. */
if (config_lookup_int(config.cfg, "general.log_verbosity", &value)) {
warn("The \"general\" \"log_verbosity\" setting is deprecated. Please use the "
"\"diagnostics\" \"log_verbosity\" setting instead.");
if ((value >= 0) && (value <= 3))
debuglev = value;
else
die("Invalid log verbosity setting option choice \"%d\". It should be between 0 and 3, "
"inclusive.",
value);
}
/* Get the verbosity setting. */
if (config_lookup_int(config.cfg, "diagnostics.log_verbosity", &value)) {
if ((value >= 0) && (value <= 3))
debuglev = value;
else
die("Invalid diagnostics log_verbosity setting option choice \"%d\". It should be "
"between 0 and 3, "
"inclusive.",
value);
}
/* Get the config.debugger_show_file_and_line in debug messages setting. */
if (config_lookup_string(config.cfg, "diagnostics.log_show_file_and_line", &str)) {
if (strcasecmp(str, "no") == 0)
config.debugger_show_file_and_line = 0;
else if (strcasecmp(str, "yes") == 0)
config.debugger_show_file_and_line = 1;
else
die("Invalid diagnostics log_show_file_and_line option choice \"%s\". It should be "
"\"yes\" or \"no\"",
str);
}
/* Get the show elapsed time in debug messages setting. */
if (config_lookup_string(config.cfg, "diagnostics.log_show_time_since_startup", &str)) {
if (strcasecmp(str, "no") == 0)
config.debugger_show_elapsed_time = 0;
else if (strcasecmp(str, "yes") == 0)
config.debugger_show_elapsed_time = 1;
else
die("Invalid diagnostics log_show_time_since_startup option choice \"%s\". It should be "
"\"yes\" or \"no\"",
str);
}
/* Get the show relative time in debug messages setting. */
if (config_lookup_string(config.cfg, "diagnostics.log_show_time_since_last_message", &str)) {
if (strcasecmp(str, "no") == 0)
config.debugger_show_relative_time = 0;
else if (strcasecmp(str, "yes") == 0)
config.debugger_show_relative_time = 1;
else
die("Invalid diagnostics log_show_time_since_last_message option choice \"%s\". It "
"should be \"yes\" or \"no\"",
str);
}
/* Get the statistics setting. */
if (config_lookup_string(config.cfg, "diagnostics.statistics", &str)) {
if (strcasecmp(str, "no") == 0)
config.statistics_requested = 0;
else if (strcasecmp(str, "yes") == 0)
config.statistics_requested = 1;
else
die("Invalid diagnostics statistics option choice \"%s\". It should be \"yes\" or "
"\"no\"",
str);
}
/* Get the disable_resend_requests setting. */
if (config_lookup_string(config.cfg, "diagnostics.disable_resend_requests", &str)) {
config.disable_resend_requests = 0; // this is for legacy -- only set by -t 0
if (strcasecmp(str, "no") == 0)
config.disable_resend_requests = 0;
else if (strcasecmp(str, "yes") == 0)
config.disable_resend_requests = 1;
else
die("Invalid diagnostic disable_resend_requests option choice \"%s\". It should be "
"\"yes\" "
"or \"no\"",
str);
}
/* Get the drop packets setting. */
if (config_lookup_float(config.cfg, "diagnostics.drop_this_fraction_of_audio_packets",
&dvalue)) {
if ((dvalue >= 0.0) && (dvalue <= 3.0))
config.diagnostic_drop_packet_fraction = dvalue;
else
die("Invalid diagnostics drop_this_fraction_of_audio_packets setting \"%d\". It should "
"be "
"between 0.0 and 1.0, "
"inclusive.",
dvalue);
}
/* Get the diagnostics output default. */
if (config_lookup_string(config.cfg, "diagnostics.log_output_to", &str)) {
#ifdef CONFIG_LIBDAEMON
log_to_default = 0; // a specific log output modality has been selected.
#endif
if (strcasecmp(str, "syslog") == 0)
log_to_syslog();
else if (strcasecmp(str, "stdout") == 0) {
log_to_stdout();
} else if (strcasecmp(str, "stderr") == 0) {
log_to_stderr();
} else {
config.log_file_path = (char *)str;
config.log_fd = -1;
log_to_file();
}
}
/* Get the ignore_volume_control setting. */
if (config_lookup_string(config.cfg, "general.ignore_volume_control", &str)) {
if (strcasecmp(str, "no") == 0)
config.ignore_volume_control = 0;
else if (strcasecmp(str, "yes") == 0)
config.ignore_volume_control = 1;
else
die("Invalid ignore_volume_control option choice \"%s\". It should be \"yes\" or \"no\"",
str);
}
/* Get the optional volume_max_db setting. */
if (config_lookup_float(config.cfg, "general.volume_max_db", &dvalue)) {
// debug(1, "Max volume setting of %f dB", dvalue);
config.volume_max_db = dvalue;
config.volume_max_db_set = 1;
}
/* Get the optional default_volume setting. */
if (config_lookup_float(config.cfg, "general.default_airplay_volume", &dvalue)) {
// debug(1, "Default airplay volume setting of %f on the -30.0 to 0 scale", dvalue);
if ((dvalue >= -30.0) && (dvalue <= 0.0)) {
config.default_airplay_volume = dvalue;
} else {
warn("The default airplay volume setting must be between -30.0 and 0.0.");
}
}
/* Get the optional high_volume_threshold setting. */
if (config_lookup_float(config.cfg, "general.high_threshold_airplay_volume", &dvalue)) {
// debug(1, "High threshold airplay volume setting of %f on the -30.0 to 0 scale", dvalue);
if ((dvalue >= -30.0) && (dvalue <= 0.0)) {
config.high_threshold_airplay_volume = dvalue;
} else {
warn("The high threshold airplay volume setting must be between -30.0 and 0.0.");
}
}
/* Get the optional high volume idle tiomeout setting. */
if (config_lookup_float(config.cfg, "general.high_volume_idle_timeout_in_minutes", &dvalue)) {
// debug(1, "High high_volume_idle_timeout_in_minutes setting of %f", dvalue);
if (dvalue >= 0.0) {
config.limit_to_high_volume_threshold_time_in_minutes = dvalue;
} else {
warn("The high volume idle timeout in minutes setting must be 0.0 or greater. A setting "
"of 0.0 disables the high volume check.");
}
}
if (config_lookup_string(config.cfg, "general.run_this_when_volume_is_set", &str)) {
config.cmd_set_volume = (char *)str;
}
/* Get the playback_mode setting */
if (config_lookup_string(config.cfg, "general.playback_mode", &str)) {
if (strcasecmp(str, "stereo") == 0)
config.playback_mode = ST_stereo;
else if (strcasecmp(str, "mono") == 0)
config.playback_mode = ST_mono;
else if (strcasecmp(str, "reverse stereo") == 0)
config.playback_mode = ST_reverse_stereo;
else if (strcasecmp(str, "both left") == 0)
config.playback_mode = ST_left_only;
else if (strcasecmp(str, "both right") == 0)
config.playback_mode = ST_right_only;
else
die("Invalid playback_mode choice \"%s\". It should be \"stereo\" (default), \"mono\", "
"\"reverse stereo\", \"both left\", \"both right\"",
str);
}
/* Get the volume control profile setting -- "standard" or "flat" */
if (config_lookup_string(config.cfg, "general.volume_control_profile", &str)) {
if (strcasecmp(str, "standard") == 0)
config.volume_control_profile = VCP_standard;
else if (strcasecmp(str, "flat") == 0)
config.volume_control_profile = VCP_flat;
else if (strcasecmp(str, "dasl_tapered") == 0)
config.volume_control_profile = VCP_dasl_tapered;
else
die("Invalid volume_control_profile choice \"%s\". It should be \"standard\" (default), "
"\"dasl_tapered\", or \"flat\"",
str);
}
config_set_lookup_bool(config.cfg, "general.volume_control_combined_hardware_priority",
&config.volume_range_hw_priority);
/* Get the interface to listen on, if specified Default is all interfaces */
/* we keep the interface name and the index */
if (config_lookup_string(config.cfg, "general.interface", &str))
config.interface = strdup(str);
if (config_lookup_string(config.cfg, "general.interface", &str)) {
config.interface_index = if_nametoindex(config.interface);
if (config.interface_index == 0) {
inform(
"The mdns service interface \"%s\" was not found, so the setting has been ignored.",
config.interface);
free(config.interface);
config.interface = NULL;
}
}
/* Get the regtype -- the service type and protocol, separated by a dot. Default is
* "_raop._tcp" */
if (config_lookup_string(config.cfg, "general.regtype", &str))
config.regtype = strdup(str);
/* Get the volume range, in dB, that should be used If not set, it means you just use the
* range set by the mixer. */
if (config_lookup_int(config.cfg, "general.volume_range_db", &value)) {
if ((value < 30) || (value > 150))
die("Invalid volume range %d dB. It should be between 30 and 150 dB. Zero means use "
"the mixer's native range. The setting reamins at %d.",
value, config.volume_range_db);
else
config.volume_range_db = value;
}
/* Get the alac_decoder setting. */
if (config_lookup_string(config.cfg, "general.alac_decoder", &str)) {
if (strcasecmp(str, "hammerton") == 0)
config.use_apple_decoder = 0;
else if (strcasecmp(str, "apple") == 0) {
if ((config.decoders_supported & 1 << decoder_apple_alac) != 0)
config.use_apple_decoder = 1;
else
inform("Support for the Apple ALAC decoder has not been compiled into this version of "
"Shairport Sync. The default decoder will be used.");
} else
die("Invalid alac_decoder option choice \"%s\". It should be \"hammerton\" or \"apple\"",
str);
}
/* Get the resend control settings. */
if (config_lookup_float(config.cfg, "general.resend_control_first_check_time", &dvalue)) {
if ((dvalue >= 0.0) && (dvalue <= 3.0))
config.resend_control_first_check_time = dvalue;
else
warn("Invalid general resend_control_first_check_time setting \"%f\". It should "
"be "
"between 0.0 and 3.0, "
"inclusive. The setting remains at %f seconds.",
dvalue, config.resend_control_first_check_time);
}
if (config_lookup_float(config.cfg, "general.resend_control_check_interval_time", &dvalue)) {
if ((dvalue >= 0.0) && (dvalue <= 3.0))
config.resend_control_check_interval_time = dvalue;
else
warn("Invalid general resend_control_check_interval_time setting \"%f\". It should "
"be "
"between 0.0 and 3.0, "
"inclusive. The setting remains at %f seconds.",
dvalue, config.resend_control_check_interval_time);
}
if (config_lookup_float(config.cfg, "general.resend_control_last_check_time", &dvalue)) {
if ((dvalue >= 0.0) && (dvalue <= 3.0))
config.resend_control_last_check_time = dvalue;
else
warn("Invalid general resend_control_last_check_time setting \"%f\". It should "
"be "
"between 0.0 and 3.0, "
"inclusive. The setting remains at %f seconds.",
dvalue, config.resend_control_last_check_time);
}
if (config_lookup_float(config.cfg, "general.missing_port_dacp_scan_interval_seconds",
&dvalue)) {
if ((dvalue >= 0.0) && (dvalue <= 300.0))
config.missing_port_dacp_scan_interval_seconds = dvalue;
else
warn("Invalid general missing_port_dacp_scan_interval_seconds setting \"%f\". It should "
"be "
"between 0.0 and 300.0, "
"inclusive. The setting remains at %f seconds.",
dvalue, config.missing_port_dacp_scan_interval_seconds);
}
/* Get the default latency. Deprecated! */
if (config_lookup_int(config.cfg, "latencies.default", &value))
config.userSuppliedLatency = value;
#ifdef CONFIG_METADATA
/* Get the metadata setting. */
if (config_lookup_string(config.cfg, "metadata.enabled", &str)) {
if (strcasecmp(str, "no") == 0)
config.metadata_enabled = 0;
else if (strcasecmp(str, "yes") == 0)
config.metadata_enabled = 1;
else
die("Invalid metadata enabled option choice \"%s\". It should be \"yes\" or \"no\"", str);
}
if (config_lookup_string(config.cfg, "metadata.include_cover_art", &str)) {
if (strcasecmp(str, "no") == 0)
config.get_coverart = 0;
else if (strcasecmp(str, "yes") == 0)
config.get_coverart = 1;
else
die("Invalid metadata include_cover_art option choice \"%s\". It should be \"yes\" or "
"\"no\"",
str);
}
if (config_lookup_string(config.cfg, "metadata.pipe_name", &str)) {
config.metadata_pipename = (char *)str;
}
if (config_lookup_float(config.cfg, "metadata.progress_interval", &dvalue)) {
config.metadata_progress_interval = dvalue;
}
if (config_lookup_string(config.cfg, "metadata.socket_address", &str)) {
config.metadata_sockaddr = (char *)str;
}
if (config_lookup_int(config.cfg, "metadata.socket_port", &value)) {
config.metadata_sockport = value;
}
config.metadata_sockmsglength = 500;
if (config_lookup_int(config.cfg, "metadata.socket_msglength", &value)) {
config.metadata_sockmsglength = value < 500 ? 500 : value > 65000 ? 65000 : value;
}
#endif
#ifdef CONFIG_METADATA_HUB
if (config_lookup_string(config.cfg, "metadata.cover_art_cache_directory", &str)) {
config.cover_art_cache_dir = (char *)str;
}
if (config_lookup_string(config.cfg, "diagnostics.retain_cover_art", &str)) {
if (strcasecmp(str, "no") == 0)
config.retain_coverart = 0;
else if (strcasecmp(str, "yes") == 0)
config.retain_coverart = 1;
else
die("Invalid metadata \"retain_cover_art\" option choice \"%s\". It should be \"yes\" or "
"\"no\"",
str);
}
#endif
if (config_lookup_string(config.cfg, "sessioncontrol.run_this_before_play_begins", &str)) {
config.cmd_start = (char *)str;
}
if (config_lookup_string(config.cfg, "sessioncontrol.run_this_after_play_ends", &str)) {
config.cmd_stop = (char *)str;
}
if (config_lookup_string(config.cfg, "sessioncontrol.run_this_before_entering_active_state",
&str)) {
config.cmd_active_start = (char *)str;
}
if (config_lookup_string(config.cfg, "sessioncontrol.run_this_after_exiting_active_state",
&str)) {
config.cmd_active_stop = (char *)str;
}
if (config_lookup_float(config.cfg, "sessioncontrol.active_state_timeout", &dvalue)) {
if (dvalue < 0.0)
warn("Invalid value \"%f\" for \"active_state_timeout\". It must be positive. "
"The default of %f will be used instead.",
dvalue, config.active_state_timeout);
else
config.active_state_timeout = dvalue;
}
if (config_lookup_string(config.cfg,
"sessioncontrol.run_this_if_an_unfixable_error_is_detected", &str)) {
config.cmd_unfixable = (char *)str;
}
if (config_lookup_string(config.cfg, "sessioncontrol.wait_for_completion", &str)) {
if (strcasecmp(str, "no") == 0)
config.cmd_blocking = 0;
else if (strcasecmp(str, "yes") == 0)
config.cmd_blocking = 1;
else
warn("Invalid \"wait_for_completion\" option choice \"%s\". It should be "
"\"yes\" or \"no\". It is set to \"no\".",
str);
}
if (config_lookup_string(config.cfg, "sessioncontrol.before_play_begins_returns_output",
&str)) {
if (strcasecmp(str, "no") == 0)
config.cmd_start_returns_output = 0;
else if (strcasecmp(str, "yes") == 0)
config.cmd_start_returns_output = 1;
else
die("Invalid \"before_play_begins_returns_output\" option choice \"%s\". It "
"should be "
"\"yes\" or \"no\"",
str);
}
if (config_lookup_string(config.cfg, "sessioncontrol.allow_session_interruption", &str)) {
config.dont_check_timeout = 0; // this is for legacy -- only set by -t 0
if (strcasecmp(str, "no") == 0)
config.allow_session_interruption = 0;
else if (strcasecmp(str, "yes") == 0)
config.allow_session_interruption = 1;
else
die("Invalid \"allow_interruption\" option choice \"%s\". It should be "
"\"yes\" "
"or \"no\"",
str);
}
if (config_lookup_int(config.cfg, "sessioncontrol.session_timeout", &value)) {
config.timeout = value;
config.dont_check_timeout = 0; // this is for legacy -- only set by -t 0
}
#ifdef CONFIG_CONVOLUTION
if (config_lookup_string(config.cfg, "dsp.convolution", &str)) {
if (strcasecmp(str, "no") == 0)
config.convolution = 0;
else if (strcasecmp(str, "yes") == 0)
config.convolution = 1;
else
die("Invalid dsp.convolution setting \"%s\". It should be \"yes\" or \"no\"", str);
}
if (config_lookup_float(config.cfg, "dsp.convolution_gain", &dvalue)) {
config.convolution_gain = dvalue;
if (dvalue > 10 || dvalue < -50)
die("Invalid value \"%f\" for dsp.convolution_gain. It should be between -50 and +10 dB",
dvalue);
}
if (config_lookup_int(config.cfg, "dsp.convolution_max_length", &value)) {
config.convolution_max_length = value;
if (value < 1 || value > 200000)
die("dsp.convolution_max_length must be within 1 and 200000");
}
if (config_lookup_string(config.cfg, "dsp.convolution_ir_file", &str)) {
config.convolution_ir_file = strdup(str);
config.convolver_valid =
convolver_init(config.convolution_ir_file, config.convolution_max_length);
}
if (config.convolution && config.convolution_ir_file == NULL) {
warn("Convolution enabled but no convolution_ir_file provided");
}
#endif
if (config_lookup_string(config.cfg, "dsp.loudness", &str)) {
if (strcasecmp(str, "no") == 0)
config.loudness = 0;
else if (strcasecmp(str, "yes") == 0)
config.loudness = 1;
else
die("Invalid dsp.loudness \"%s\". It should be \"yes\" or \"no\"", str);
}
if (config_lookup_float(config.cfg, "dsp.loudness_reference_volume_db", &dvalue)) {
config.loudness_reference_volume_db = dvalue;
if (dvalue > 0 || dvalue < -100)
die("Invalid value \"%f\" for dsp.loudness_reference_volume_db. It should be between "
"-100 and 0",
dvalue);
}
if (config.loudness == 1 && config_lookup_string(config.cfg, "alsa.mixer_control_name", &str))
die("Loudness activated but hardware volume is active. You must remove "
"\"alsa.mixer_control_name\" to use the loudness filter.");
} else {
if (config_error_type(&config_file_stuff) == CONFIG_ERR_FILE_IO)
debug(2, "Error reading configuration file \"%s\": \"%s\".",
config_error_file(&config_file_stuff), config_error_text(&config_file_stuff));
else {
die("Line %d of the configuration file \"%s\":\n%s", config_error_line(&config_file_stuff),
config_error_file(&config_file_stuff), config_error_text(&config_file_stuff));
}
}
#if defined(CONFIG_DBUS_INTERFACE)
/* Get the dbus service sbus setting. */
if (config_lookup_string(config.cfg, "general.dbus_service_bus", &str)) {
if (strcasecmp(str, "system") == 0)
config.dbus_service_bus_type = DBT_system;
else if (strcasecmp(str, "session") == 0)
config.dbus_service_bus_type = DBT_session;
else
die("Invalid dbus_service_bus option choice \"%s\". It should be \"system\" (default) or "
"\"session\"",
str);
}
#endif
#if defined(CONFIG_MPRIS_INTERFACE)
/* Get the mpris service sbus setting. */
if (config_lookup_string(config.cfg, "general.mpris_service_bus", &str)) {
if (strcasecmp(str, "system") == 0)
config.mpris_service_bus_type = DBT_system;
else if (strcasecmp(str, "session") == 0)
config.mpris_service_bus_type = DBT_session;
else
die("Invalid mpris_service_bus option choice \"%s\". It should be \"system\" (default) or "
"\"session\"",
str);
}
#endif
#ifdef CONFIG_MQTT
config_set_lookup_bool(config.cfg, "mqtt.enabled", &config.mqtt_enabled);
if (config.mqtt_enabled && !config.metadata_enabled) {
die("You need to have metadata enabled in order to use mqtt");
}
if (config_lookup_string(config.cfg, "mqtt.hostname", &str)) {
config.mqtt_hostname = (char *)str;
// TODO: Document that, if this is false, whole mqtt func is disabled
}
config.mqtt_port = 1883;
if (config_lookup_int(config.cfg, "mqtt.port", &value)) {
if ((value < 0) || (value > 65535))
die("Invalid mqtt port number \"%sd\". It should be between 0 and 65535, default is 1883",
value);
else
config.mqtt_port = value;
}
if (config_lookup_string(config.cfg, "mqtt.username", &str)) {
config.mqtt_username = (char *)str;
}
if (config_lookup_string(config.cfg, "mqtt.password", &str)) {
config.mqtt_password = (char *)str;
}
int capath = 0;
if (config_lookup_string(config.cfg, "mqtt.capath", &str)) {
config.mqtt_capath = (char *)str;
capath = 1;
}
if (config_lookup_string(config.cfg, "mqtt.cafile", &str)) {
if (capath)
die("Supply either mqtt cafile or mqtt capath -- you have supplied both!");
config.mqtt_cafile = (char *)str;
}
int certkeynum = 0;
if (config_lookup_string(config.cfg, "mqtt.certfile", &str)) {
config.mqtt_certfile = (char *)str;
certkeynum++;
}
if (config_lookup_string(config.cfg, "mqtt.keyfile", &str)) {
config.mqtt_keyfile = (char *)str;
certkeynum++;
}
if (certkeynum != 0 && certkeynum != 2) {
die("If you want to use TLS Client Authentication, you have to specify "
"mqtt.certfile AND mqtt.keyfile.\nYou have supplied only one of them.\n"
"If you do not want to use TLS Client Authentication, leave both empty.");
}
if (config_lookup_string(config.cfg, "mqtt.topic", &str)) {
config.mqtt_topic = (char *)str;
}
config_set_lookup_bool(config.cfg, "mqtt.publish_raw", &config.mqtt_publish_raw);
config_set_lookup_bool(config.cfg, "mqtt.publish_parsed", &config.mqtt_publish_parsed);
config_set_lookup_bool(config.cfg, "mqtt.publish_cover", &config.mqtt_publish_cover);
if (config.mqtt_publish_cover && !config.get_coverart) {
die("You need to have metadata.include_cover_art enabled in order to use mqtt.publish_cover");
}
config_set_lookup_bool(config.cfg, "mqtt.enable_remote", &config.mqtt_enable_remote);
if (config_lookup_string(config.cfg, "mqtt.empty_payload_substitute", &str)) {
if (strlen(str) == 0)
config.mqtt_empty_payload_substitute = NULL;
else
config.mqtt_empty_payload_substitute = strdup(str);
} else {
config.mqtt_empty_payload_substitute = strdup("--");
}
#ifndef CONFIG_AVAHI
if (config.mqtt_enable_remote) {
die("You have enabled MQTT remote control which requires shairport-sync to be built with "
"Avahi, but your installation is not using avahi. Please reinstall/recompile with "
"avahi enabled, or disable remote control.");
}
#endif
#endif
#ifdef CONFIG_AIRPLAY_2
long long aid;
// replace the airplay_device_id with this, if provided
if (config_lookup_int64(config.cfg, "general.airplay_device_id", &aid)) {
temporary_airplay_id = aid;
}
// add the airplay_device_id_offset if provided
if (config_lookup_int64(config.cfg, "general.airplay_device_id_offset", &aid)) {
temporary_airplay_id += aid;
}
#endif
}
// now, do the command line options again, but this time do them fully -- it's a unix convention
// that command line
// arguments have precedence over configuration file settings.
optind = argc;
for (j = 0; j < argc; j++)
if (strcmp(argv[j], "--") == 0)
optind = j;
optCon = poptGetContext(NULL, optind, (const char **)argv, optionsTable, 0);
if (optCon == NULL)
die("Can not get a popt context.");
poptSetOtherOptionHelp(optCon, "[OPTIONS]* ");
/* Now do options processing, get portname */
int tdebuglev = 0;
while ((c = poptGetNextOpt(optCon)) >= 0) {
switch (c) {
case 'v':
tdebuglev++;
break;
case 't':
if (config.timeout == 0) {
config.dont_check_timeout = 1;
config.allow_session_interruption = 1;
} else {
config.dont_check_timeout = 0;
config.allow_session_interruption = 0;
}
break;
#ifdef CONFIG_METADATA
case 'M':
config.metadata_enabled = 1;
break;
case 'g':
if (config.metadata_enabled == 0)
die("If you want to get cover art, ensure metadata_enabled is true.");
break;
#endif
case 'S':
if (strcmp(stuffing, "basic") == 0)
config.packet_stuffing = ST_basic;
else if (strcmp(stuffing, "auto") == 0)
config.packet_stuffing = ST_auto;
else if (strcmp(stuffing, "soxr") == 0)
#ifdef CONFIG_SOXR
config.packet_stuffing = ST_soxr;
#else
die("The soxr option not available because this version of shairport-sync was built "
"without libsoxr "
"support. Change the -S option setting.");
#endif
else
die("Illegal stuffing option \"%s\" -- must be \"basic\" or \"soxr\"", stuffing);
break;
}
}
if (c < -1) {
die("%s: %s", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(c));
}
poptFreeContext(optCon);
// here, we are finally finished reading the options
// finish the Airplay 2 options
#ifdef CONFIG_AIRPLAY_2
char shared_memory_interface_name[256] = "";
snprintf(shared_memory_interface_name, sizeof(shared_memory_interface_name), "/%s-%" PRIx64 "",
config.appName, temporary_airplay_id);
// debug(1, "smi name: \"%s\"", shared_memory_interface_name);
config.nqptp_shared_memory_interface_name = strdup(NQPTP_INTERFACE_NAME);
char apids[6 * 2 + 5 + 1]; // six pairs of digits, 5 colons and a NUL
apids[6 * 2 + 5] = 0; // NUL termination
int i;
char hexchar[] = "0123456789abcdef";
for (i = 5; i >= 0; i--) {
// In AirPlay 2 mode, the AP1 name prefix must be
// the same as the AirPlay 2 device id less the colons.
config.ap1_prefix[i] = temporary_airplay_id & 0xFF;
apids[i * 3 + 1] = hexchar[temporary_airplay_id & 0xF];
temporary_airplay_id = temporary_airplay_id >> 4;
apids[i * 3] = hexchar[temporary_airplay_id & 0xF];
temporary_airplay_id = temporary_airplay_id >> 4;
if (i != 0)
apids[i * 3 - 1] = ':';
}
config.airplay_device_id = strdup(apids);
#ifdef CONFIG_METADATA
// If we are asking for metadata, turn on the relevant bits
if (config.metadata_enabled != 0) {
config.airplay_features |= (1 << 17) | (1 << 16); // 16 is progress, 17 is text
// If we are asking for artwork, turn on the relevant bit
if (config.get_coverart)
config.airplay_features |= (1 << 15); // 15 is artwork
}
#endif
#endif
#ifdef CONFIG_LIBDAEMON
if ((daemonisewith) && (daemonisewithout))
die("Select either daemonize_with_pid_file or daemonize_without_pid_file -- you have selected "
"both!");
if ((daemonisewith) || (daemonisewithout)) {
config.daemonise = 1;
if (daemonisewith)
config.daemonise_store_pid = 1;
};
#else
/* Check if we are called with -d or --daemon or -j or justDaemoniseNoPIDFile options*/
if ((daemonisewith != 0) || (daemonisewithout != 0)) {
fprintf(stderr,
"%s was built without libdaemon, so does not support daemonisation using the "
"-d, --daemon, -j or --justDaemoniseNoPIDFile options\n",
config.appName);
exit(EXIT_FAILURE);
}
#endif
#ifdef CONFIG_METADATA
if ((config.metadata_enabled == 1) && (config.metadata_pipename == NULL)) {
char temp_metadata_pipe_name[4096];
strcpy(temp_metadata_pipe_name, "/tmp/");
strcat(temp_metadata_pipe_name, config.appName);
strcat(temp_metadata_pipe_name, "-metadata");
config.metadata_pipename = strdup(temp_metadata_pipe_name);
debug(2, "default metadata_pipename is \"%s\".", temp_metadata_pipe_name);
}
#endif
/* if the regtype hasn't been set, do it now */
if (config.regtype == NULL)
config.regtype = strdup("_raop._tcp");
#ifdef CONFIG_AIRPLAY_2
if (config.regtype2 == NULL)
config.regtype2 = strdup("_airplay._tcp");
#endif
if (tdebuglev != 0)
debuglev = tdebuglev;
// now set the initial volume to the default volume
config.airplay_volume =
config.default_airplay_volume; // if no volume is ever set or requested, default to initial
// default value if nothing else comes in first.
// now, do the substitutions in the service name
char hostname[100];
gethostname(hostname, 100);
// strip off a terminating .<anything>, e.g. .local from the hostname
char *last_dot = strrchr(hostname, '.');
if (last_dot != NULL)
*last_dot = '\0';
char *i0;
if (raw_service_name == NULL)
i0 = strdup("%H"); // this is the default it the Service Name wasn't specified
else
i0 = strdup(raw_service_name);
// here, do the substitutions for %h, %H, %v and %V
char *i1 = str_replace(i0, "%h", hostname);
if ((hostname[0] >= 'a') && (hostname[0] <= 'z'))
hostname[0] = hostname[0] - 0x20; // convert a lowercase first letter into a capital letter
char *i2 = str_replace(i1, "%H", hostname);
char *i3 = str_replace(i2, "%v", PACKAGE_VERSION);
char *vs = get_version_string();
config.service_name = str_replace(i3, "%V", vs); // service name complete
free(i0);
free(i1);
free(i2);
free(i3);
free(vs);
#ifdef CONFIG_MQTT
// mqtt topic was not set. As we have the service name just now, set it
if (config.mqtt_topic == NULL) {
int topic_length = 1 + strlen(config.service_name) + 1;
char *topic = malloc(topic_length + 1);
snprintf(topic, topic_length, "/%s/", config.service_name);
config.mqtt_topic = topic;
}
#endif
#ifdef CONFIG_LIBDAEMON
// now, check and calculate the pid directory
#ifdef DEFINED_CUSTOM_PID_DIR
char *use_this_pid_dir = PIDDIR;
#else
char temp_pid_dir[4096];
strcpy(temp_pid_dir, "/var/run/");
strcat(temp_pid_dir, config.appName);
debug(3, "Default PID directory is \"%s\".", temp_pid_dir);
char *use_this_pid_dir = temp_pid_dir;
#endif
// debug(1,"config.piddir \"%s\".",config.piddir);
if (config.piddir)
use_this_pid_dir = config.piddir;
if (use_this_pid_dir)
config.computed_piddir = strdup(use_this_pid_dir);
#endif
return optind + 1;
}
#if defined(CONFIG_DBUS_INTERFACE) || defined(CONFIG_MPRIS_INTERFACE)
static GMainLoop *g_main_loop = NULL;
pthread_t dbus_thread;
void *dbus_thread_func(__attribute__((unused)) void *arg) {
g_main_loop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(g_main_loop);
debug(2, "g_main_loop thread exit");
pthread_exit(NULL);
}
#endif
#ifdef CONFIG_LIBDAEMON
char pid_file_path_string[4096] = "\0";
const char *pid_file_proc(void) {
snprintf(pid_file_path_string, sizeof(pid_file_path_string), "%s/%s.pid", config.computed_piddir,
daemon_pid_file_ident ? daemon_pid_file_ident : "unknown");
debug(1, "PID file: \"%s\".", pid_file_path_string);
return pid_file_path_string;
}
#endif
void exit_rtsp_listener() {
pthread_cancel(rtsp_listener_thread);
pthread_join(rtsp_listener_thread, NULL); // not sure you need this
}
void exit_function() {
if (type_of_exit_cleanup != TOE_emergency) {
// the following is to ensure that if libdaemon has been included
// that most of this code will be skipped when the parent process is exiting
// exec
#ifdef CONFIG_LIBDAEMON
if ((this_is_the_daemon_process) ||
(config.daemonise == 0)) { // if this is the daemon process that is exiting or it's not
// actually daemonised at all
#endif
debug(2, "exit function called...");
/*
Actually, there is no terminate_mqtt() function.
#ifdef CONFIG_MQTT
if (config.mqtt_enabled) {
terminate_mqtt();
}
#endif
*/
debug(2, "Stopping the activity monitor.");
activity_monitor_stop();
debug(2, "Stopping the activity monitor done.");
#ifdef CONFIG_DACP_CLIENT
debug(2, "Stopping DACP Monitor");
dacp_monitor_stop();
debug(2, "Stopping DACP Monitor Done");
#endif
#if defined(CONFIG_DBUS_INTERFACE) || defined(CONFIG_MPRIS_INTERFACE)
/*
Actually, there is no stop_mpris_service() function.
#ifdef CONFIG_MPRIS_INTERFACE
stop_mpris_service();
#endif
*/
#ifdef CONFIG_DBUS_INTERFACE
debug(2, "Stopping D-Bus service");
stop_dbus_service();
debug(2, "Stopping D-Bus service done");
#endif
if (g_main_loop) {
debug(2, "Stopping D-Bus Loop Thread");
g_main_loop_quit(g_main_loop);
// If the request to exit has come from the D-Bus system,
// the D-Bus Loop Thread will not exit until the request is completed
// so don't wait for it
if (type_of_exit_cleanup != TOE_dbus)
pthread_join(dbus_thread, NULL);
debug(2, "Stopping D-Bus Loop Thread Done");
}
#endif
#ifdef CONFIG_METADATA_HUB
debug(2, "Stopping metadata hub");
metadata_hub_stop();
debug(2, "Stopping metadata done");
#endif
#ifdef CONFIG_METADATA
debug(2, "Stopping metadata");
metadata_stop(); // close down the metadata pipe
debug(2, "Stopping metadata done");
#endif
if ((config.output) && (config.output->deinit)) {
debug(2, "Deinitialise the audio backend.");
config.output->deinit();
debug(2, "Deinitialise the audio backend done.");
}
#ifdef CONFIG_SOXR
// be careful -- not sure if the thread can be cancelled cleanly, so wait for it to shut down
if (soxr_time_check_thread_started != 0) {
debug(2, "Waiting for SoXr timecheck to terminate...");
pthread_join(soxr_time_check_thread, NULL);
soxr_time_check_thread_started = 0;
debug(2, "Waiting for SoXr timecheck to terminate done");
}
#endif
if (conns)
free(conns); // make sure the connections have been deleted first
if (config.service_name)
free(config.service_name);
#ifdef CONFIG_MQTT
if (config.mqtt_empty_payload_substitute)
free(config.mqtt_empty_payload_substitute);
#endif
#ifdef CONFIG_CONVOLUTION
if (config.convolution_ir_file)
free(config.convolution_ir_file);
#endif
if (config.regtype)
free(config.regtype);
#ifdef CONFIG_AIRPLAY_2
if (config.regtype2)
free(config.regtype2);
if (config.nqptp_shared_memory_interface_name)
free(config.nqptp_shared_memory_interface_name);
if (config.airplay_device_id)
free(config.airplay_device_id);
if (config.airplay_pin)
free(config.airplay_pin);
if (config.airplay_pi)
free(config.airplay_pi);
ptp_shm_interface_close(); // close it if it's open
#endif
#ifdef CONFIG_LIBDAEMON
if (this_is_the_daemon_process) {
daemon_retval_send(0);
daemon_pid_file_remove();
daemon_signal_done();
if (config.computed_piddir)
free(config.computed_piddir);
}
}
#endif
if (config.cfg)
config_destroy(config.cfg);
if (config_file_real_path)
free(config_file_real_path);
if (config.appName)
free(config.appName);
// probably should be freeing malloc'ed memory here, including strdup-created strings...
#ifdef CONFIG_LIBDAEMON
if (this_is_the_daemon_process) { // this is the daemon that is exiting
debug(1, "libdaemon daemon process exit");
} else {
if (config.daemonise)
debug(1, "libdaemon parent process exit");
else
debug(1, "normal exit");
}
#else
mdns_unregister(); // once the dacp handler is done and all player threrads are done it should
// be safe
debug(1, "normal exit");
#endif
} else {
debug(1, "emergency exit");
}
}
// for removing zombie script processes
// see: http://www.microhowto.info/howto/reap_zombie_processes_using_a_sigchld_handler.html
// used with thanks.
void handle_sigchld(__attribute__((unused)) int sig) {
int saved_errno = errno;
while (waitpid((pid_t)(-1), 0, WNOHANG) > 0) {
}
errno = saved_errno;
}
// for clean exits
void intHandler(__attribute__((unused)) int k) {
debug(2, "exit on SIGINT");
exit(EXIT_SUCCESS);
}
void termHandler(__attribute__((unused)) int k) {
debug(2, "exit on SIGTERM");
exit(EXIT_SUCCESS);
}
void _display_config(const char *filename, const int linenumber, __attribute__((unused)) int argc,
__attribute__((unused)) char **argv) {
_inform(filename, linenumber, ">> Display Config Start.");
// see the man entry on popen
FILE *fp;
int status;
char result[1024];
fp = popen("uname -a 2>/dev/null", "r");
if (fp != NULL) {
if (fgets(result, 1024, fp) != NULL) {
_inform(filename, linenumber, "");
_inform(filename, linenumber, "From \"uname -a\":");
if (result[strlen(result) - 1] <= ' ')
result[strlen(result) - 1] = '\0'; // remove the last character if it's not printable
_inform(filename, linenumber, " %s", result);
}
status = pclose(fp);
if (status == -1) {
debug(1, "Error on pclose");
}
}
fp = popen("(cat /etc/os-release | grep PRETTY_NAME | sed 's/PRETTY_NAME=//' | sed 's/\"//g') "
"2>/dev/null",
"r");
if (fp != NULL) {
if (fgets(result, 1024, fp) != NULL) {
_inform(filename, linenumber, "");
_inform(filename, linenumber, "From /etc/os-release:");
if (result[strlen(result) - 1] <= ' ')
result[strlen(result) - 1] = '\0'; // remove the last character if it's not printable
_inform(filename, linenumber, " %s", result);
}
status = pclose(fp);
if (status == -1) {
debug(1, "Error on pclose");
}
}
fp = popen("cat /sys/firmware/devicetree/base/model 2>/dev/null", "r");
if (fp != NULL) {
if (fgets(result, 1024, fp) != NULL) {
_inform(filename, linenumber, "");
_inform(filename, linenumber, "From /sys/firmware/devicetree/base/model:");
_inform(filename, linenumber, " %s", result);
}
status = pclose(fp);
if (status == -1) {
debug(1, "Error on pclose");
}
}
char *version_string = get_version_string();
if (version_string) {
_inform(filename, linenumber, "");
_inform(filename, linenumber, "Shairport Sync Version String:");
_inform(filename, linenumber, " %s", version_string);
free(version_string);
} else {
debug(1, "Can't print version string!\n");
}
if (argc != 0) {
char *obfp = result;
int i;
for (i = 0; i < argc - 1; i++) {
snprintf(obfp, strlen(argv[i]) + 2, "%s ", argv[i]);
obfp += strlen(argv[i]) + 1;
}
snprintf(obfp, strlen(argv[i]) + 1, "%s", argv[i]);
obfp += strlen(argv[i]);
*obfp = 0;
_inform(filename, linenumber, "");
_inform(filename, linenumber, "Command Line:");
_inform(filename, linenumber, " %s", result);
}
if (config.cfg == NULL)
_inform(filename, linenumber, "No configuration file.");
else {
int configpipe[2];
if (pipe(configpipe) == 0) {
FILE *cw;
cw = fdopen(configpipe[1], "w");
_inform(filename, linenumber, "");
_inform(filename, linenumber, "Configuration File:");
_inform(filename, linenumber, " %s", config_file_real_path);
_inform(filename, linenumber, "");
config_write(config.cfg, cw);
fclose(cw);
// get back the raw configuration file settings text
FILE *cr;
cr = fdopen(configpipe[0], "r");
int i = 0;
int ch = 0;
do {
ch = fgetc(cr);
if (ch == EOF) {
result[i] = '\0';
} else {
result[i] = (char)ch;
i++;
}
} while (ch != EOF);
fclose(cr);
// debug(1,"result is \"%s\".",result);
// remove empty stanzas
char *i0 = str_replace(result, "general : \n{\n};\n", "");
char *i1 = str_replace(i0, "sessioncontrol : \n{\n};\n", "");
char *i2 = str_replace(i1, "alsa : \n{\n};\n", "");
char *i3 = str_replace(i2, "sndio : \n{\n};\n", "");
char *i4 = str_replace(i3, "pa : \n{\n};\n", "");
char *i5 = str_replace(i4, "jack : \n{\n};\n", "");
char *i6 = str_replace(i5, "pipe : \n{\n};\n", "");
char *i7 = str_replace(i6, "dsp : \n{\n};\n", "");
char *i8 = str_replace(i7, "metadata : \n{\n};\n", "");
char *i9 = str_replace(i8, "mqtt : \n{\n};\n", "");
char *i10 = str_replace(i9, "diagnostics : \n{\n};\n", "");
// debug(1,"i10 is \"%s\".",i10);
// free intermediate strings
free(i9);
free(i8);
free(i7);
free(i6);
free(i5);
free(i4);
free(i3);
free(i2);
free(i1);
free(i0);
// print it out
if (strlen(i10) == 0)
_inform(filename, linenumber, "The Configuration file contains no active settings.");
else {
_inform(filename, linenumber, "Configuration File Settings:");
char *p = i10;
while (*p != '\0') {
i = 0;
while ((*p != '\0') && (*p != '\n')) {
result[i] = *p;
p++;
i++;
}
if (i != 0) {
result[i] = '\0';
_inform(filename, linenumber, " %s", result);
}
if (*p == '\n')
p++;
}
}
free(i10); // free the cleaned-up configuration string
/*
while (fgets(result, 1024, cr) != NULL) {
// replace funny character at the end, if it's there
if (result[strlen(result) - 1] <= ' ')
result[strlen(result) - 1] = '\0'; // remove the last character if it's not
printable _inform(filename, linenumber, " %s", result);
}
*/
} else {
debug(1, "Error making pipe.\n");
}
}
_inform(filename, linenumber, "");
_inform(filename, linenumber, ">> Display Config End.");
}
#define display_config(argc, argv) _display_config(__FILE__, __LINE__, argc, argv)
int main(int argc, char **argv) {
memset(&config, 0, sizeof(config)); // also clears all strings, BTW
/* Check if we are called with -V or --version parameter */
if (argc >= 2 && ((strcmp(argv[1], "-V") == 0) || (strcmp(argv[1], "--version") == 0))) {
print_version();
exit(EXIT_SUCCESS);
}
// this is a bit weird, but necessary -- basename() may modify the argument passed in
char *basec = strdup(argv[0]);
char *bname = basename(basec);
config.appName = strdup(bname);
if (config.appName == NULL)
die("can not allocate memory for the app name!");
free(basec);
strcpy(configuration_file_path, SYSCONFDIR);
// strcat(configuration_file_path, "/shairport-sync"); // thinking about adding a special
// shairport-sync directory
strcat(configuration_file_path, "/");
strcat(configuration_file_path, config.appName);
strcat(configuration_file_path, ".conf");
config.configfile = configuration_file_path;
#ifdef CONFIG_AIRPLAY_2
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(53, 10, 0)
avcodec_init();
#endif
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(58, 9, 100)
avcodec_register_all();
#endif
#endif
/* Check if we are called with -h or --help parameter */
if (argc >= 2 && ((strcmp(argv[1], "-h") == 0) || (strcmp(argv[1], "--help") == 0))) {
usage(argv[0]);
exit(EXIT_SUCCESS);
}
/* Check if we are called with -log-to-syslog */
if (argc >= 2 && (strcmp(argv[1], "--log-to-syslog") == 0)) {
log_to_syslog_select_is_first_command_line_argument = 1;
log_to_syslog();
} else {
log_to_stderr();
}
pid = getpid();
config.log_fd = -1;
conns = NULL; // no connections active
ns_time_at_startup = get_absolute_time_in_ns();
ns_time_at_last_debug_message = ns_time_at_startup;
#ifdef CONFIG_LIBDAEMON
daemon_set_verbosity(LOG_DEBUG);
#else
setlogmask(LOG_UPTO(LOG_DEBUG));
openlog(NULL, 0, LOG_DAEMON);
#endif
type_of_exit_cleanup = TOE_normal; // what kind of exit cleanup needed
atexit(exit_function);
// set defaults
// get a device id -- the first non-local MAC address
get_device_id((uint8_t *)&config.hw_addr, 6);
// get the endianness
union {
uint32_t u32;
uint8_t arr[4];
} xn;
xn.arr[0] = 0x44; /* Lowest-address byte */
xn.arr[1] = 0x33;
xn.arr[2] = 0x22;
xn.arr[3] = 0x11; /* Highest-address byte */
if (xn.u32 == 0x11223344)
config.endianness = SS_LITTLE_ENDIAN;
else if (xn.u32 == 0x33441122)
config.endianness = SS_PDP_ENDIAN;
else if (xn.u32 == 0x44332211)
config.endianness = SS_BIG_ENDIAN;
else
die("Can not recognise the endianness of the processor.");
// set non-zero / non-NULL default values here
// but note that audio back ends also have a chance to set defaults
// get the first output backend in the list and make it the default
audio_output *first_backend = audio_get_output(NULL);
if (first_backend == NULL) {
die("No audio backend found! Check your build of Shairport Sync.");
} else {
strncpy(first_backend_name, first_backend->name, sizeof(first_backend_name) - 1);
config.output_name = first_backend_name;
}
// config.statistics_requested = 0; // don't print stats in the log
// config.userSuppliedLatency = 0; // zero means none supplied
config.debugger_show_file_and_line =
1; // by default, log the file and line of the originating message
config.debugger_show_relative_time =
1; // by default, log the time back to the previous debug message
config.timeout = 120; // this number of seconds to wait for [more] audio before switching to idle.
config.buffer_start_fill = 220;
config.resync_threshold = 0.050; // default
config.resync_recovery_time = 0.1; // drop this amount of frames following the resync delay.
config.tolerance = 0.002;
#ifdef CONFIG_AIRPLAY_2
config.timeout = 0; // disable watchdog
config.port = 7000;
#else
config.port = 5000;
#endif
#ifdef CONFIG_SOXR
config.packet_stuffing = ST_auto; // use soxr interpolation by default if support has been
// included and if the CPU is fast enough
#else
config.packet_stuffing = ST_basic; // simple interpolation or deletion
#endif
// char hostname[100];
// gethostname(hostname, 100);
// config.service_name = malloc(20 + 100);
// snprintf(config.service_name, 20 + 100, "Shairport Sync on %s", hostname);
set_requested_connection_state_to_output(
1); // we expect to be able to connect to the output device
config.audio_backend_buffer_desired_length = 0.15; // seconds
config.udp_port_base = 6001;
config.udp_port_range = 10;
config.output_format = SPS_FORMAT_S16_LE; // default
config.output_format_auto_requested = 1; // default auto select format
config.output_rate = 44100; // default
config.output_rate_auto_requested = 1; // default auto select format
config.decoders_supported =
1 << decoder_hammerton; // David Hammerton's decoder supported by default
#ifdef CONFIG_APPLE_ALAC
config.decoders_supported += 1 << decoder_apple_alac;
config.use_apple_decoder = 1; // use the ALAC decoder by default if support has been included
#endif
// initialise random number generator
r64init(0);
#ifdef CONFIG_LIBDAEMON
/* Reset signal handlers */
if (daemon_reset_sigs(-1) < 0) {
daemon_log(LOG_ERR, "Failed to reset all signal handlers: %s", strerror(errno));
return 1;
}
/* Unblock signals */
if (daemon_unblock_sigs(-1) < 0) {
daemon_log(LOG_ERR, "Failed to unblock all signals: %s", strerror(errno));
return 1;
}
/* Set identification string for the daemon for both syslog and PID file */
daemon_pid_file_ident = daemon_log_ident = daemon_ident_from_argv0(argv[0]);
daemon_pid_file_proc = pid_file_proc;
#endif
// parse arguments into config -- needed to locate pid_dir
int audio_arg = parse_options(argc, argv);
// mDNS supports maximum of 63-character names (we append 13).
if (strlen(config.service_name) > 50) {
warn("The service name \"%s\" is too long (max 50 characters) and has been truncated.",
config.service_name);
config.service_name[50] = '\0'; // truncate it and carry on...
}
if (display_config_selected != 0) {
display_config(argc, argv);
if (argc == 2) {
inform(">> Goodbye!");
exit(EXIT_SUCCESS);
}
}
/* Check if we are called with -k or --kill option */
if (killOption != 0) {
#ifdef CONFIG_LIBDAEMON
int ret;
/* Kill daemon with SIGTERM */
/* Check if the new function daemon_pid_file_kill_wait() is available, if it is, use it. */
if ((ret = daemon_pid_file_kill_wait(SIGTERM, 5)) < 0) {
if (errno == ENOENT)
warn("Failed to kill the %s daemon. The PID file was not found.", config.appName);
// daemon_log(LOG_WARNING, "Failed to kill %s daemon: PID file not found.", config.appName);
else
warn("Failed to kill the %s daemon. Error: \"%s\", errno %u.", config.appName,
strerror(errno), errno);
// daemon_log(LOG_WARNING, "Failed to kill %s daemon: \"%s\", errno %u.", config.appName,
// strerror(errno), errno);
}
return ret < 0 ? 1 : 0;
#else
warn("%s was built without libdaemon, so it does not support the -k or --kill option.",
config.appName);
return 1;
#endif
}
#ifdef CONFIG_LIBDAEMON
/* If we are going to daemonise, check that the daemon is not running already.*/
if ((config.daemonise) && ((pid = daemon_pid_file_is_running()) >= 0)) {
warn("The %s deamon is already running with process ID (PID) %u.", config.appName, pid);
// daemon_log(LOG_ERR, "The %s daemon is already running as PID %u", config.appName, pid);
return 1;
}
/* here, daemonise with libdaemon */
if (config.daemonise) {
/* Prepare for return value passing from the initialization procedure of the daemon process */
if (daemon_retval_init() < 0) {
die("Failed to create pipe.");
}
/* Do the fork */
if ((pid = daemon_fork()) < 0) {
/* Exit on error */
daemon_retval_done();
return 1;
} else if (pid) { /* The parent */
int ret;
/* Wait for 20 seconds for the return value passed from the daemon process */
if ((ret = daemon_retval_wait(20)) < 0) {
die("Could not receive return value from daemon process: %s", strerror(errno));
}
switch (ret) {
case 0:
break;
case 1:
warn("The %s daemon failed to launch: could not close open file descriptors after forking.",
config.appName);
break;
case 2:
warn("The %s daemon failed to launch: could not create PID file.", config.appName);
break;
case 3:
warn("The %s daemon failed to launch: could not create or access PID directory.",
config.appName);
break;
default:
warn("The %s daemon failed to launch, error %i.", config.appName, ret);
}
return ret;
} else { /* pid == 0 means we are the daemon */
this_is_the_daemon_process = 1;
if (log_to_default != 0) // if a specific logging mode has not been selected
log_to_syslog(); // automatically send logs to the daemon_log
/* Close FDs */
if (daemon_close_all(-1) < 0) {
warn("Failed to close all file descriptors while daemonising. Error: %s", strerror(errno));
/* Send the error condition to the parent process */
daemon_retval_send(1);
daemon_signal_done();
return 0;
}
/* Create the PID file if required */
if (config.daemonise_store_pid) {
/* Create the PID directory if required -- we don't really care about the result */
debug(1, "PID directory is \"%s\".", config.computed_piddir);
int result = mkpath(config.computed_piddir, 0700);
if ((result != 0) && (result != -EEXIST)) {
// error creating or accessing the PID file directory
warn("Failed to create the directory \"%s\" for the PID file. Error: %s.",
config.computed_piddir, strerror(errno));
daemon_retval_send(3);
daemon_signal_done();
return 0;
}
if (daemon_pid_file_create() < 0) {
// daemon_log(LOG_ERR, "Could not create PID file (%s).", strerror(errno));
warn("Failed to create the PID file. Error: %s.", strerror(errno));
daemon_retval_send(2);
daemon_signal_done();
return 0;
}
}
/* Send OK to parent process */
daemon_retval_send(0);
}
/* end libdaemon stuff */
}
#endif
#ifdef CONFIG_AIRPLAY_2
if (has_fltp_capable_aac_decoder() == 0) {
die("Shairport Sync can not run on this system. Run \"shairport-sync -h\" for more "
"information.");
}
uint64_t apf = config.airplay_features;
uint64_t apfh = config.airplay_features;
apfh = apfh >> 32;
uint32_t apf32 = apf;
uint32_t apfh32 = apfh;
debug(1, "Startup in AirPlay 2 mode, with features 0x%" PRIx32 ",0x%" PRIx32 " on device \"%s\".",
apf32, apfh32, config.airplay_device_id);
#else
debug(1, "Startup in classic Airplay (aka \"AirPlay 1\") mode.");
#endif
// control-c (SIGINT) cleanly
struct sigaction act;
memset(&act, 0, sizeof(struct sigaction));
act.sa_handler = intHandler;
sigaction(SIGINT, &act, NULL);
// terminate (SIGTERM)
struct sigaction act2;
memset(&act2, 0, sizeof(struct sigaction));
act2.sa_handler = termHandler;
sigaction(SIGTERM, &act2, NULL);
// stop a pipe signal from killing the program
signal(SIGPIPE, SIG_IGN);
// install a zombie process reaper
// see: http://www.microhowto.info/howto/reap_zombie_processes_using_a_sigchld_handler.html
struct sigaction sa;
sa.sa_handler = &handle_sigchld;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_NOCLDSTOP;
if (sigaction(SIGCHLD, &sa, 0) == -1) {
perror(0);
exit(1);
}
// make sure the program can create files that group and world can read
umask(S_IWGRP | S_IWOTH);
/* print out version */
char *version_dbs = get_version_string();
if (version_dbs) {
debug(1, "Version String: \"%s\"", version_dbs);
free(version_dbs);
} else {
debug(1, "Can't print the version information!");
}
// print command line
if (argc != 0) {
char result[1024];
char *obfp = result;
int i;
for (i = 0; i < argc - 1; i++) {
snprintf(obfp, strlen(argv[i]) + 2, "%s ", argv[i]);
obfp += strlen(argv[i]) + 1;
}
snprintf(obfp, strlen(argv[i]) + 1, "%s", argv[i]);
obfp += strlen(argv[i]);
*obfp = 0;
debug(1, "Command Line: \"%s\".", result);
}
#ifdef CONFIG_AIRPLAY_2
if (sodium_init() < 0) {
debug(1, "Can't initialise libsodium!");
} else {
debug(2, "libsodium initialised.");
}
// this code is based on
// https://www.gnupg.org/documentation/manuals/gcrypt/Initializing-the-library.html
/* Version check should be the very first call because it
makes sure that important subsystems are initialized.
#define NEED_LIBGCRYPT_VERSION to the minimum required version. */
#define NEED_LIBGCRYPT_VERSION "1.5.4"
if (!gcry_check_version(NEED_LIBGCRYPT_VERSION)) {
die("libgcrypt is too old (need %s, have %s).", NEED_LIBGCRYPT_VERSION,
gcry_check_version(NULL));
}
/* Disable secure memory. */
gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
/* ... If required, other initialization goes here. */
/* Tell Libgcrypt that initialization has completed. */
gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
debug(2, "libgcrypt initialised.");
#endif
debug(1, "Log Verbosity is %d.", debuglev);
config.output = audio_get_output(config.output_name);
if (!config.output) {
die("Invalid audio backend \"%s\" selected!",
config.output_name == NULL ? "<unspecified>" : config.output_name);
}
config.output->init(argc - audio_arg, argv + audio_arg);
// pthread_cleanup_push(main_cleanup_handler, NULL);
// daemon_log(LOG_NOTICE, "startup");
switch (config.endianness) {
case SS_LITTLE_ENDIAN:
debug(2, "The processor is running little-endian.");
break;
case SS_BIG_ENDIAN:
debug(2, "The processor is running big-endian.");
break;
case SS_PDP_ENDIAN:
debug(2, "The processor is running pdp-endian.");
break;
}
/* Mess around with the latency options */
// Basically, we expect the source to set the latency and add a fixed offset of 11025 frames to
// it, which sounds right
// If this latency is outside the max and min latensies that may be set by the source, clamp it to
// fit.
// If they specify a non-standard latency, we suggest the user to use the
// audio_backend_latency_offset instead.
if (config.userSuppliedLatency) {
inform("The fixed latency setting is deprecated, as Shairport Sync gets the correct "
"latency automatically from the source.");
inform("Use the audio_backend_latency_offset_in_seconds setting "
"instead to compensate for timing issues.");
if ((config.userSuppliedLatency != 0) &&
((config.userSuppliedLatency < 4410) ||
(config.userSuppliedLatency > BUFFER_FRAMES * 352 - 22050)))
die("An out-of-range fixed latency has been specified. It must be between 4410 and %d (at "
"44100 frames per second).",
BUFFER_FRAMES * 352 - 22050);
}
/* Print out options */
debug(1, "disable_resend_requests is %s.", config.disable_resend_requests ? "on" : "off");
debug(1,
"diagnostic_drop_packet_fraction is %f. A value of 0.0 means no packets will be dropped "
"deliberately.",
config.diagnostic_drop_packet_fraction);
debug(1, "statistics_requester status is %d.", config.statistics_requested);
#if CONFIG_LIBDAEMON
debug(1, "daemon status is %d.", config.daemonise);
debug(1, "daemon pid file path is \"%s\".", pid_file_proc());
#endif
debug(1, "rtsp listening port is %d.", config.port);
debug(1, "udp base port is %d.", config.udp_port_base);
debug(1, "udp port range is %d.", config.udp_port_range);
debug(1, "player name is \"%s\".", config.service_name);
debug(1, "backend is \"%s\".", config.output_name);
debug(1, "run_this_before_play_begins action is \"%s\".", strnull(config.cmd_start));
debug(1, "run_this_after_play_ends action is \"%s\".", strnull(config.cmd_stop));
debug(1, "wait-cmd status is %d.", config.cmd_blocking);
debug(1, "run_this_before_play_begins may return output is %d.", config.cmd_start_returns_output);
debug(1, "run_this_if_an_unfixable_error_is_detected action is \"%s\".",
strnull(config.cmd_unfixable));
debug(1, "run_this_before_entering_active_state action is \"%s\".",
strnull(config.cmd_active_start));
debug(1, "run_this_after_exiting_active_state action is \"%s\".",
strnull(config.cmd_active_stop));
debug(1, "active_state_timeout is %f seconds.", config.active_state_timeout);
debug(1, "mdns backend \"%s\".", strnull(config.mdns_name));
debug(2, "userSuppliedLatency is %d.", config.userSuppliedLatency);
debug(1, "interpolation setting is \"%s\".",
config.packet_stuffing == ST_basic ? "basic"
: config.packet_stuffing == ST_soxr ? "soxr"
: "auto");
debug(1, "interpolation soxr_delay_threshold is %d.", config.soxr_delay_threshold);
debug(1, "resync time is %f seconds.", config.resync_threshold);
debug(1, "resync recovery time is %f seconds.", config.resync_recovery_time);
debug(1, "allow a session to be interrupted: %d.", config.allow_session_interruption);
debug(1, "busy timeout time is %d.", config.timeout);
debug(1, "drift tolerance is %f seconds.", config.tolerance);
debug(1, "password is \"%s\".", strnull(config.password));
debug(1, "default airplay volume is: %.6f.", config.default_airplay_volume);
debug(1, "high threshold airplay volume is: %.6f.", config.high_threshold_airplay_volume);
if (config.limit_to_high_volume_threshold_time_in_minutes == 0)
debug(1, "check for higher-than-threshold volume for new play session is disabled.");
else
debug(1,
"suggest default airplay volume for new play sessions instead of higher-than-threshold "
"airplay volume after: %d minutes.",
config.limit_to_high_volume_threshold_time_in_minutes);
debug(1, "ignore_volume_control is %d.", config.ignore_volume_control);
if (config.volume_max_db_set)
debug(1, "volume_max_db is %d.", config.volume_max_db);
else
debug(1, "volume_max_db is not set");
debug(1, "volume range in dB (zero means use the range specified by the mixer): %u.",
config.volume_range_db);
debug(1,
"volume_range_combined_hardware_priority (1 means hardware mixer attenuation is used "
"first) is %d.",
config.volume_range_hw_priority);
debug(1, "playback_mode is %d (0-stereo, 1-mono, 1-reverse_stereo, 2-both_left, 3-both_right).",
config.playback_mode);
debug(1, "disable_synchronization is %d.", config.no_sync);
debug(1, "use_mmap_if_available is %d.", config.no_mmap ? 0 : 1);
debug(1, "output_format automatic selection is %sabled.",
config.output_format_auto_requested ? "en" : "dis");
if (config.output_format_auto_requested == 0)
debug(1, "output_format is \"%s\".", sps_format_description_string(config.output_format));
debug(1, "output_rate automatic selection is %sabled.",
config.output_rate_auto_requested ? "en" : "dis");
if (config.output_rate_auto_requested == 0)
debug(1, "output_rate is %d.", config.output_rate);
debug(1, "audio backend desired buffer length is %f seconds.",
config.audio_backend_buffer_desired_length);
debug(1, "audio_backend_buffer_interpolation_threshold_in_seconds is %f seconds.",
config.audio_backend_buffer_interpolation_threshold_in_seconds);
debug(1, "audio backend latency offset is %f seconds.", config.audio_backend_latency_offset);
if (config.audio_backend_silent_lead_in_time_auto == 1)
debug(1, "audio backend silence lead-in time is \"auto\".");
else
debug(1, "audio backend silence lead-in time is %f seconds.",
config.audio_backend_silent_lead_in_time);
debug(1, "zeroconf regtype is \"%s\".", config.regtype);
debug(1, "decoders_supported field is %d.", config.decoders_supported);
debug(1, "use_apple_decoder is %d.", config.use_apple_decoder);
debug(1, "alsa_use_hardware_mute is %d.", config.alsa_use_hardware_mute);
if (config.interface)
debug(1, "mdns service interface \"%s\" requested.", config.interface);
else
debug(1, "no special mdns service interface was requested.");
char *realConfigPath = realpath(config.configfile, NULL);
if (realConfigPath) {
debug(1, "configuration file name \"%s\" resolves to \"%s\".", config.configfile,
realConfigPath);
free(realConfigPath);
} else {
debug(1, "configuration file name \"%s\" can not be resolved.", config.configfile);
}
#ifdef CONFIG_METADATA
debug(1, "metadata enabled is %d.", config.metadata_enabled);
debug(1, "metadata pipename is \"%s\".", config.metadata_pipename);
debug(1, "metadata socket address is \"%s\" port %d.", config.metadata_sockaddr,
config.metadata_sockport);
debug(1, "metadata socket packet size is \"%d\".", config.metadata_sockmsglength);
debug(1, "get-coverart is %d.", config.get_coverart);
#endif
#ifdef CONFIG_MQTT
debug(1, "mqtt is %sabled.", config.mqtt_enabled ? "en" : "dis");
debug(1, "mqtt hostname is %s, port is %d.", config.mqtt_hostname, config.mqtt_port);
debug(1, "mqtt topic is %s.", config.mqtt_topic);
debug(1, "mqtt will%s publish raw metadata.", config.mqtt_publish_raw ? "" : " not");
debug(1, "mqtt will%s publish parsed metadata.", config.mqtt_publish_parsed ? "" : " not");
debug(1, "mqtt will%s publish cover Art.", config.mqtt_publish_cover ? "" : " not");
debug(1, "mqtt remote control is %sabled.", config.mqtt_enable_remote ? "en" : "dis");
#endif
#ifdef CONFIG_CONVOLUTION
debug(1, "convolution is %d.", config.convolution);
debug(1, "convolution IR file is \"%s\"", config.convolution_ir_file);
debug(1, "convolution max length %d", config.convolution_max_length);
debug(1, "convolution gain is %f", config.convolution_gain);
#endif
debug(1, "loudness is %d.", config.loudness);
debug(1, "loudness reference level is %f", config.loudness_reference_volume_db);
#ifdef CONFIG_SOXR
pthread_create(&soxr_time_check_thread, NULL, &soxr_time_check, NULL);
soxr_time_check_thread_started = 1;
#endif
// In AirPlay 2 mode, the AP1 prefix is the same as the device ID less the colons
// In AirPlay 1 mode, the AP1 prefix is calculated by hashing the service name.
#ifndef CONFIG_AIRPLAY_2
uint8_t ap_md5[16];
// debug(1, "size of hw_addr is %u.", sizeof(config.hw_addr));
#ifdef CONFIG_OPENSSL
EVP_MD_CTX *mdctx = EVP_MD_CTX_new();
EVP_DigestInit_ex(mdctx, EVP_md5(), NULL);
EVP_DigestUpdate(mdctx, config.service_name, strlen(config.service_name));
EVP_DigestUpdate(mdctx, config.hw_addr, sizeof(config.hw_addr));
unsigned int md5_digest_len = EVP_MD_size(EVP_md5());
EVP_DigestFinal_ex(mdctx, ap_md5, &md5_digest_len);
EVP_MD_CTX_free(mdctx);
#endif
#ifdef CONFIG_MBEDTLS
#if MBEDTLS_VERSION_MINOR >= 7
mbedtls_md5_context tctx;
mbedtls_md5_starts_ret(&tctx);
mbedtls_md5_update_ret(&tctx, (unsigned char *)config.service_name, strlen(config.service_name));
mbedtls_md5_update_ret(&tctx, (unsigned char *)config.hw_addr, sizeof(config.hw_addr));
mbedtls_md5_finish_ret(&tctx, ap_md5);
#else
mbedtls_md5_context tctx;
mbedtls_md5_starts(&tctx);
mbedtls_md5_update(&tctx, (unsigned char *)config.service_name, strlen(config.service_name));
mbedtls_md5_update(&tctx, (unsigned char *)config.hw_addr, sizeof(config.hw_addr));
mbedtls_md5_finish(&tctx, ap_md5);
#endif
#endif
#ifdef CONFIG_POLARSSL
md5_context tctx;
md5_starts(&tctx);
md5_update(&tctx, (unsigned char *)config.service_name, strlen(config.service_name));
md5_update(&tctx, (unsigned char *)config.hw_addr, sizeof(config.hw_addr));
md5_finish(&tctx, ap_md5);
#endif
memcpy(config.ap1_prefix, ap_md5, sizeof(config.ap1_prefix));
#endif
#ifdef CONFIG_METADATA
metadata_init(); // create the metadata pipe if necessary
#endif
#ifdef CONFIG_METADATA_HUB
// debug(1, "Initialising metadata hub");
metadata_hub_init();
#endif
#ifdef CONFIG_DACP_CLIENT
// debug(1, "Requesting DACP Monitor");
dacp_monitor_start();
#endif
#if defined(CONFIG_DBUS_INTERFACE) || defined(CONFIG_MPRIS_INTERFACE)
// Start up DBUS services after initial settings are all made
// debug(1, "Starting up D-Bus services");
pthread_create(&dbus_thread, NULL, &dbus_thread_func, NULL);
#ifdef CONFIG_DBUS_INTERFACE
start_dbus_service();
#endif
#ifdef CONFIG_MPRIS_INTERFACE
start_mpris_service();
#endif
#endif
#ifdef CONFIG_MQTT
if (config.mqtt_enabled) {
initialise_mqtt();
}
#endif
#ifdef CONFIG_AIRPLAY_2
ptp_send_control_message_string(
"T"); // send this message to get nqptp to create the named shm interface
uint64_t nqptp_start_waiting_time = get_absolute_time_in_ns();
int continue_waiting = 0;
int response = 0;
int64_t time_spent_waiting = 0;
do {
continue_waiting = 0;
response = ptp_shm_interface_open();
if ((response == -1) && (errno == ENOENT)) {
time_spent_waiting = get_absolute_time_in_ns() - nqptp_start_waiting_time;
if (time_spent_waiting < 10000000000L) {
continue_waiting = 1;
usleep(50000);
}
}
} while (continue_waiting != 0);
if ((response == -1) && (errno == ENOENT)) {
die("Shairport Sync can not find the nqptp service on this system. Is nqptp installed and "
"running?");
} else if ((response == -1) && (errno == EACCES)) {
die("Shairport Sync must have read access to the nqptp shared memory file in /dev/shm/.");
} else if (response != 0) {
die("an error occurred accessing the nqptp service.");
}
int ptp_clock_version = ptp_get_clock_version();
if (ptp_clock_version == 0) {
die("The nqptp service on this system, which is required for Shairport Sync to operate, does "
"not seem to be initialised.");
} else if (ptp_clock_version < NQPTP_SHM_STRUCTURES_VERSION) {
die("The nqptp service (SMI Version %d) on this system is too old for this version of "
"Shairport Sync, which requires SMI Version %d. Please update.",
ptp_clock_version, NQPTP_SHM_STRUCTURES_VERSION);
} else if (ptp_clock_version > NQPTP_SHM_STRUCTURES_VERSION) {
die("This version of Shairport Sync (SMI Version %d) is too old for the version of nqptp (SMI "
"Version %d) on this system. Please update.",
NQPTP_SHM_STRUCTURES_VERSION, ptp_clock_version);
}
if (time_spent_waiting == 0)
debug(1, "NQPTP is online.");
else
debug(1, "NQPTP came online after %.3f milliseconds.", 0.000001 * time_spent_waiting);
#endif
#ifdef CONFIG_METADATA
send_ssnc_metadata('svna', config.service_name, strlen(config.service_name), 1);
char buffer[256] = "";
snprintf(buffer, sizeof(buffer), "%d", config.output_rate);
send_ssnc_metadata('ofps', buffer, strlen(buffer), 1);
snprintf(buffer, sizeof(buffer), "%s", sps_format_description_string(config.output_format));
send_ssnc_metadata('ofmt', buffer, strlen(buffer), 1);
#endif
activity_monitor_start(); // not yet for AP2
pthread_create(&rtsp_listener_thread, NULL, &rtsp_listen_loop, NULL);
atexit(exit_rtsp_listener);
pthread_join(rtsp_listener_thread, NULL);
return 0;
}
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